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The Quake III Arena sources as originally released under the GPL license on August 20, 2005.

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Travis Bradshaw 2012-01-31 13:41:34 -06:00
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/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.
This file is part of Quake III Arena source code.
Quake III Arena source code is free software; you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
Quake III Arena source code is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Foobar; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
===========================================================================
*/
/*
** QGL.H
*/
#ifndef __QGL_H__
#define __QGL_H__
#if defined( __LINT__ )
#include <GL/gl.h>
#elif defined( _WIN32 )
#pragma warning (disable: 4201)
#pragma warning (disable: 4214)
#pragma warning (disable: 4514)
#pragma warning (disable: 4032)
#pragma warning (disable: 4201)
#pragma warning (disable: 4214)
#include <windows.h>
#include <gl/gl.h>
#elif defined(MACOS_X)
#include "macosx_glimp.h"
#elif defined( __linux__ )
#include <GL/gl.h>
#include <GL/glx.h>
// bk001129 - from cvs1.17 (mkv)
#if defined(__FX__)
#include <GL/fxmesa.h>
#endif
#elif defined( __FreeBSD__ ) // rb010123
#include <GL/gl.h>
#include <GL/glx.h>
#if defined(__FX__)
#include <GL/fxmesa.h>
#endif
#else
#include <gl.h>
#endif
#ifndef APIENTRY
#define APIENTRY
#endif
#ifndef WINAPI
#define WINAPI
#endif
//===========================================================================
/*
** multitexture extension definitions
*/
#define GL_ACTIVE_TEXTURE_ARB 0x84E0
#define GL_CLIENT_ACTIVE_TEXTURE_ARB 0x84E1
#define GL_MAX_ACTIVE_TEXTURES_ARB 0x84E2
#define GL_TEXTURE0_ARB 0x84C0
#define GL_TEXTURE1_ARB 0x84C1
#define GL_TEXTURE2_ARB 0x84C2
#define GL_TEXTURE3_ARB 0x84C3
// NOTE: some Linux platforms would need those prototypes
#if defined(MACOS_X)
typedef void (APIENTRY * PFNGLMULTITEXCOORD1DARBPROC) (GLenum target, GLdouble s);
typedef void (APIENTRY * PFNGLMULTITEXCOORD1DVARBPROC) (GLenum target, const GLdouble *v);
typedef void (APIENTRY * PFNGLMULTITEXCOORD1FARBPROC) (GLenum target, GLfloat s);
typedef void (APIENTRY * PFNGLMULTITEXCOORD1FVARBPROC) (GLenum target, const GLfloat *v);
typedef void (APIENTRY * PFNGLMULTITEXCOORD1IARBPROC) (GLenum target, GLint s);
typedef void (APIENTRY * PFNGLMULTITEXCOORD1IVARBPROC) (GLenum target, const GLint *v);
typedef void (APIENTRY * PFNGLMULTITEXCOORD1SARBPROC) (GLenum target, GLshort s);
typedef void (APIENTRY * PFNGLMULTITEXCOORD1SVARBPROC) (GLenum target, const GLshort *v);
typedef void (APIENTRY * PFNGLMULTITEXCOORD2DARBPROC) (GLenum target, GLdouble s, GLdouble t);
typedef void (APIENTRY * PFNGLMULTITEXCOORD2DVARBPROC) (GLenum target, const GLdouble *v);
typedef void (APIENTRY * PFNGLMULTITEXCOORD2FARBPROC) (GLenum target, GLfloat s, GLfloat t);
typedef void (APIENTRY * PFNGLMULTITEXCOORD2FVARBPROC) (GLenum target, const GLfloat *v);
typedef void (APIENTRY * PFNGLMULTITEXCOORD2IARBPROC) (GLenum target, GLint s, GLint t);
typedef void (APIENTRY * PFNGLMULTITEXCOORD2IVARBPROC) (GLenum target, const GLint *v);
typedef void (APIENTRY * PFNGLMULTITEXCOORD2SARBPROC) (GLenum target, GLshort s, GLshort t);
typedef void (APIENTRY * PFNGLMULTITEXCOORD2SVARBPROC) (GLenum target, const GLshort *v);
typedef void (APIENTRY * PFNGLMULTITEXCOORD3DARBPROC) (GLenum target, GLdouble s, GLdouble t, GLdouble r);
typedef void (APIENTRY * PFNGLMULTITEXCOORD3DVARBPROC) (GLenum target, const GLdouble *v);
typedef void (APIENTRY * PFNGLMULTITEXCOORD3FARBPROC) (GLenum target, GLfloat s, GLfloat t, GLfloat r);
typedef void (APIENTRY * PFNGLMULTITEXCOORD3FVARBPROC) (GLenum target, const GLfloat *v);
typedef void (APIENTRY * PFNGLMULTITEXCOORD3IARBPROC) (GLenum target, GLint s, GLint t, GLint r);
typedef void (APIENTRY * PFNGLMULTITEXCOORD3IVARBPROC) (GLenum target, const GLint *v);
typedef void (APIENTRY * PFNGLMULTITEXCOORD3SARBPROC) (GLenum target, GLshort s, GLshort t, GLshort r);
typedef void (APIENTRY * PFNGLMULTITEXCOORD3SVARBPROC) (GLenum target, const GLshort *v);
typedef void (APIENTRY * PFNGLMULTITEXCOORD4DARBPROC) (GLenum target, GLdouble s, GLdouble t, GLdouble r, GLdouble q);
typedef void (APIENTRY * PFNGLMULTITEXCOORD4DVARBPROC) (GLenum target, const GLdouble *v);
typedef void (APIENTRY * PFNGLMULTITEXCOORD4FARBPROC) (GLenum target, GLfloat s, GLfloat t, GLfloat r, GLfloat q);
typedef void (APIENTRY * PFNGLMULTITEXCOORD4FVARBPROC) (GLenum target, const GLfloat *v);
typedef void (APIENTRY * PFNGLMULTITEXCOORD4IARBPROC) (GLenum target, GLint s, GLint t, GLint r, GLint q);
typedef void (APIENTRY * PFNGLMULTITEXCOORD4IVARBPROC) (GLenum target, const GLint *v);
typedef void (APIENTRY * PFNGLMULTITEXCOORD4SARBPROC) (GLenum target, GLshort s, GLshort t, GLshort r, GLshort q);
typedef void (APIENTRY * PFNGLMULTITEXCOORD4SVARBPROC) (GLenum target, const GLshort *v);
typedef void (APIENTRY * PFNGLACTIVETEXTUREARBPROC) (GLenum target);
typedef void (APIENTRY * PFNGLCLIENTACTIVETEXTUREARBPROC) (GLenum target);
#endif
// TTimo - VC7 / XP ?
#ifdef WIN32
typedef void (APIENTRY * PFNGLMULTITEXCOORD2FARBPROC) (GLenum target, GLfloat s, GLfloat t);
typedef void (APIENTRY * PFNGLACTIVETEXTUREARBPROC) (GLenum target);
typedef void (APIENTRY * PFNGLCLIENTACTIVETEXTUREARBPROC) (GLenum target);
#endif
/*
** extension constants
*/
// S3TC compression constants
#define GL_RGB_S3TC 0x83A0
#define GL_RGB4_S3TC 0x83A1
// extensions will be function pointers on all platforms
extern void ( APIENTRY * qglMultiTexCoord2fARB )( GLenum texture, GLfloat s, GLfloat t );
extern void ( APIENTRY * qglActiveTextureARB )( GLenum texture );
extern void ( APIENTRY * qglClientActiveTextureARB )( GLenum texture );
extern void ( APIENTRY * qglLockArraysEXT) (GLint, GLint);
extern void ( APIENTRY * qglUnlockArraysEXT) (void);
//===========================================================================
// non-windows systems will just redefine qgl* to gl*
#if !defined( _WIN32 ) && !defined(MACOS_X) && !defined( __linux__ ) && !defined( __FreeBSD__ ) // rb010123
#include "qgl_linked.h"
#elif defined(MACOS_X)
// This includes #ifdefs for optional logging and GL error checking after every GL call as well as #defines to prevent incorrect usage of the non-'qgl' versions of the GL API.
#include "macosx_qgl.h"
#else
// windows systems use a function pointer for each call so we can load minidrivers
extern void ( APIENTRY * qglAccum )(GLenum op, GLfloat value);
extern void ( APIENTRY * qglAlphaFunc )(GLenum func, GLclampf ref);
extern GLboolean ( APIENTRY * qglAreTexturesResident )(GLsizei n, const GLuint *textures, GLboolean *residences);
extern void ( APIENTRY * qglArrayElement )(GLint i);
extern void ( APIENTRY * qglBegin )(GLenum mode);
extern void ( APIENTRY * qglBindTexture )(GLenum target, GLuint texture);
extern void ( APIENTRY * qglBitmap )(GLsizei width, GLsizei height, GLfloat xorig, GLfloat yorig, GLfloat xmove, GLfloat ymove, const GLubyte *bitmap);
extern void ( APIENTRY * qglBlendFunc )(GLenum sfactor, GLenum dfactor);
extern void ( APIENTRY * qglCallList )(GLuint list);
extern void ( APIENTRY * qglCallLists )(GLsizei n, GLenum type, const GLvoid *lists);
extern void ( APIENTRY * qglClear )(GLbitfield mask);
extern void ( APIENTRY * qglClearAccum )(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
extern void ( APIENTRY * qglClearColor )(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha);
extern void ( APIENTRY * qglClearDepth )(GLclampd depth);
extern void ( APIENTRY * qglClearIndex )(GLfloat c);
extern void ( APIENTRY * qglClearStencil )(GLint s);
extern void ( APIENTRY * qglClipPlane )(GLenum plane, const GLdouble *equation);
extern void ( APIENTRY * qglColor3b )(GLbyte red, GLbyte green, GLbyte blue);
extern void ( APIENTRY * qglColor3bv )(const GLbyte *v);
extern void ( APIENTRY * qglColor3d )(GLdouble red, GLdouble green, GLdouble blue);
extern void ( APIENTRY * qglColor3dv )(const GLdouble *v);
extern void ( APIENTRY * qglColor3f )(GLfloat red, GLfloat green, GLfloat blue);
extern void ( APIENTRY * qglColor3fv )(const GLfloat *v);
extern void ( APIENTRY * qglColor3i )(GLint red, GLint green, GLint blue);
extern void ( APIENTRY * qglColor3iv )(const GLint *v);
extern void ( APIENTRY * qglColor3s )(GLshort red, GLshort green, GLshort blue);
extern void ( APIENTRY * qglColor3sv )(const GLshort *v);
extern void ( APIENTRY * qglColor3ub )(GLubyte red, GLubyte green, GLubyte blue);
extern void ( APIENTRY * qglColor3ubv )(const GLubyte *v);
extern void ( APIENTRY * qglColor3ui )(GLuint red, GLuint green, GLuint blue);
extern void ( APIENTRY * qglColor3uiv )(const GLuint *v);
extern void ( APIENTRY * qglColor3us )(GLushort red, GLushort green, GLushort blue);
extern void ( APIENTRY * qglColor3usv )(const GLushort *v);
extern void ( APIENTRY * qglColor4b )(GLbyte red, GLbyte green, GLbyte blue, GLbyte alpha);
extern void ( APIENTRY * qglColor4bv )(const GLbyte *v);
extern void ( APIENTRY * qglColor4d )(GLdouble red, GLdouble green, GLdouble blue, GLdouble alpha);
extern void ( APIENTRY * qglColor4dv )(const GLdouble *v);
extern void ( APIENTRY * qglColor4f )(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
extern void ( APIENTRY * qglColor4fv )(const GLfloat *v);
extern void ( APIENTRY * qglColor4i )(GLint red, GLint green, GLint blue, GLint alpha);
extern void ( APIENTRY * qglColor4iv )(const GLint *v);
extern void ( APIENTRY * qglColor4s )(GLshort red, GLshort green, GLshort blue, GLshort alpha);
extern void ( APIENTRY * qglColor4sv )(const GLshort *v);
extern void ( APIENTRY * qglColor4ub )(GLubyte red, GLubyte green, GLubyte blue, GLubyte alpha);
extern void ( APIENTRY * qglColor4ubv )(const GLubyte *v);
extern void ( APIENTRY * qglColor4ui )(GLuint red, GLuint green, GLuint blue, GLuint alpha);
extern void ( APIENTRY * qglColor4uiv )(const GLuint *v);
extern void ( APIENTRY * qglColor4us )(GLushort red, GLushort green, GLushort blue, GLushort alpha);
extern void ( APIENTRY * qglColor4usv )(const GLushort *v);
extern void ( APIENTRY * qglColorMask )(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha);
extern void ( APIENTRY * qglColorMaterial )(GLenum face, GLenum mode);
extern void ( APIENTRY * qglColorPointer )(GLint size, GLenum type, GLsizei stride, const GLvoid *pointer);
extern void ( APIENTRY * qglCopyPixels )(GLint x, GLint y, GLsizei width, GLsizei height, GLenum type);
extern void ( APIENTRY * qglCopyTexImage1D )(GLenum target, GLint level, GLenum internalFormat, GLint x, GLint y, GLsizei width, GLint border);
extern void ( APIENTRY * qglCopyTexImage2D )(GLenum target, GLint level, GLenum internalFormat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border);
extern void ( APIENTRY * qglCopyTexSubImage1D )(GLenum target, GLint level, GLint xoffset, GLint x, GLint y, GLsizei width);
extern void ( APIENTRY * qglCopyTexSubImage2D )(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height);
extern void ( APIENTRY * qglCullFace )(GLenum mode);
extern void ( APIENTRY * qglDeleteLists )(GLuint list, GLsizei range);
extern void ( APIENTRY * qglDeleteTextures )(GLsizei n, const GLuint *textures);
extern void ( APIENTRY * qglDepthFunc )(GLenum func);
extern void ( APIENTRY * qglDepthMask )(GLboolean flag);
extern void ( APIENTRY * qglDepthRange )(GLclampd zNear, GLclampd zFar);
extern void ( APIENTRY * qglDisable )(GLenum cap);
extern void ( APIENTRY * qglDisableClientState )(GLenum array);
extern void ( APIENTRY * qglDrawArrays )(GLenum mode, GLint first, GLsizei count);
extern void ( APIENTRY * qglDrawBuffer )(GLenum mode);
extern void ( APIENTRY * qglDrawElements )(GLenum mode, GLsizei count, GLenum type, const GLvoid *indices);
extern void ( APIENTRY * qglDrawPixels )(GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid *pixels);
extern void ( APIENTRY * qglEdgeFlag )(GLboolean flag);
extern void ( APIENTRY * qglEdgeFlagPointer )(GLsizei stride, const GLvoid *pointer);
extern void ( APIENTRY * qglEdgeFlagv )(const GLboolean *flag);
extern void ( APIENTRY * qglEnable )(GLenum cap);
extern void ( APIENTRY * qglEnableClientState )(GLenum array);
extern void ( APIENTRY * qglEnd )(void);
extern void ( APIENTRY * qglEndList )(void);
extern void ( APIENTRY * qglEvalCoord1d )(GLdouble u);
extern void ( APIENTRY * qglEvalCoord1dv )(const GLdouble *u);
extern void ( APIENTRY * qglEvalCoord1f )(GLfloat u);
extern void ( APIENTRY * qglEvalCoord1fv )(const GLfloat *u);
extern void ( APIENTRY * qglEvalCoord2d )(GLdouble u, GLdouble v);
extern void ( APIENTRY * qglEvalCoord2dv )(const GLdouble *u);
extern void ( APIENTRY * qglEvalCoord2f )(GLfloat u, GLfloat v);
extern void ( APIENTRY * qglEvalCoord2fv )(const GLfloat *u);
extern void ( APIENTRY * qglEvalMesh1 )(GLenum mode, GLint i1, GLint i2);
extern void ( APIENTRY * qglEvalMesh2 )(GLenum mode, GLint i1, GLint i2, GLint j1, GLint j2);
extern void ( APIENTRY * qglEvalPoint1 )(GLint i);
extern void ( APIENTRY * qglEvalPoint2 )(GLint i, GLint j);
extern void ( APIENTRY * qglFeedbackBuffer )(GLsizei size, GLenum type, GLfloat *buffer);
extern void ( APIENTRY * qglFinish )(void);
extern void ( APIENTRY * qglFlush )(void);
extern void ( APIENTRY * qglFogf )(GLenum pname, GLfloat param);
extern void ( APIENTRY * qglFogfv )(GLenum pname, const GLfloat *params);
extern void ( APIENTRY * qglFogi )(GLenum pname, GLint param);
extern void ( APIENTRY * qglFogiv )(GLenum pname, const GLint *params);
extern void ( APIENTRY * qglFrontFace )(GLenum mode);
extern void ( APIENTRY * qglFrustum )(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble zNear, GLdouble zFar);
extern GLuint ( APIENTRY * qglGenLists )(GLsizei range);
extern void ( APIENTRY * qglGenTextures )(GLsizei n, GLuint *textures);
extern void ( APIENTRY * qglGetBooleanv )(GLenum pname, GLboolean *params);
extern void ( APIENTRY * qglGetClipPlane )(GLenum plane, GLdouble *equation);
extern void ( APIENTRY * qglGetDoublev )(GLenum pname, GLdouble *params);
extern GLenum ( APIENTRY * qglGetError )(void);
extern void ( APIENTRY * qglGetFloatv )(GLenum pname, GLfloat *params);
extern void ( APIENTRY * qglGetIntegerv )(GLenum pname, GLint *params);
extern void ( APIENTRY * qglGetLightfv )(GLenum light, GLenum pname, GLfloat *params);
extern void ( APIENTRY * qglGetLightiv )(GLenum light, GLenum pname, GLint *params);
extern void ( APIENTRY * qglGetMapdv )(GLenum target, GLenum query, GLdouble *v);
extern void ( APIENTRY * qglGetMapfv )(GLenum target, GLenum query, GLfloat *v);
extern void ( APIENTRY * qglGetMapiv )(GLenum target, GLenum query, GLint *v);
extern void ( APIENTRY * qglGetMaterialfv )(GLenum face, GLenum pname, GLfloat *params);
extern void ( APIENTRY * qglGetMaterialiv )(GLenum face, GLenum pname, GLint *params);
extern void ( APIENTRY * qglGetPixelMapfv )(GLenum map, GLfloat *values);
extern void ( APIENTRY * qglGetPixelMapuiv )(GLenum map, GLuint *values);
extern void ( APIENTRY * qglGetPixelMapusv )(GLenum map, GLushort *values);
extern void ( APIENTRY * qglGetPointerv )(GLenum pname, GLvoid* *params);
extern void ( APIENTRY * qglGetPolygonStipple )(GLubyte *mask);
extern const GLubyte * ( APIENTRY * qglGetString )(GLenum name);
extern void ( APIENTRY * qglGetTexEnvfv )(GLenum target, GLenum pname, GLfloat *params);
extern void ( APIENTRY * qglGetTexEnviv )(GLenum target, GLenum pname, GLint *params);
extern void ( APIENTRY * qglGetTexGendv )(GLenum coord, GLenum pname, GLdouble *params);
extern void ( APIENTRY * qglGetTexGenfv )(GLenum coord, GLenum pname, GLfloat *params);
extern void ( APIENTRY * qglGetTexGeniv )(GLenum coord, GLenum pname, GLint *params);
extern void ( APIENTRY * qglGetTexImage )(GLenum target, GLint level, GLenum format, GLenum type, GLvoid *pixels);
extern void ( APIENTRY * qglGetTexLevelParameterfv )(GLenum target, GLint level, GLenum pname, GLfloat *params);
extern void ( APIENTRY * qglGetTexLevelParameteriv )(GLenum target, GLint level, GLenum pname, GLint *params);
extern void ( APIENTRY * qglGetTexParameterfv )(GLenum target, GLenum pname, GLfloat *params);
extern void ( APIENTRY * qglGetTexParameteriv )(GLenum target, GLenum pname, GLint *params);
extern void ( APIENTRY * qglHint )(GLenum target, GLenum mode);
extern void ( APIENTRY * qglIndexMask )(GLuint mask);
extern void ( APIENTRY * qglIndexPointer )(GLenum type, GLsizei stride, const GLvoid *pointer);
extern void ( APIENTRY * qglIndexd )(GLdouble c);
extern void ( APIENTRY * qglIndexdv )(const GLdouble *c);
extern void ( APIENTRY * qglIndexf )(GLfloat c);
extern void ( APIENTRY * qglIndexfv )(const GLfloat *c);
extern void ( APIENTRY * qglIndexi )(GLint c);
extern void ( APIENTRY * qglIndexiv )(const GLint *c);
extern void ( APIENTRY * qglIndexs )(GLshort c);
extern void ( APIENTRY * qglIndexsv )(const GLshort *c);
extern void ( APIENTRY * qglIndexub )(GLubyte c);
extern void ( APIENTRY * qglIndexubv )(const GLubyte *c);
extern void ( APIENTRY * qglInitNames )(void);
extern void ( APIENTRY * qglInterleavedArrays )(GLenum format, GLsizei stride, const GLvoid *pointer);
extern GLboolean ( APIENTRY * qglIsEnabled )(GLenum cap);
extern GLboolean ( APIENTRY * qglIsList )(GLuint list);
extern GLboolean ( APIENTRY * qglIsTexture )(GLuint texture);
extern void ( APIENTRY * qglLightModelf )(GLenum pname, GLfloat param);
extern void ( APIENTRY * qglLightModelfv )(GLenum pname, const GLfloat *params);
extern void ( APIENTRY * qglLightModeli )(GLenum pname, GLint param);
extern void ( APIENTRY * qglLightModeliv )(GLenum pname, const GLint *params);
extern void ( APIENTRY * qglLightf )(GLenum light, GLenum pname, GLfloat param);
extern void ( APIENTRY * qglLightfv )(GLenum light, GLenum pname, const GLfloat *params);
extern void ( APIENTRY * qglLighti )(GLenum light, GLenum pname, GLint param);
extern void ( APIENTRY * qglLightiv )(GLenum light, GLenum pname, const GLint *params);
extern void ( APIENTRY * qglLineStipple )(GLint factor, GLushort pattern);
extern void ( APIENTRY * qglLineWidth )(GLfloat width);
extern void ( APIENTRY * qglListBase )(GLuint base);
extern void ( APIENTRY * qglLoadIdentity )(void);
extern void ( APIENTRY * qglLoadMatrixd )(const GLdouble *m);
extern void ( APIENTRY * qglLoadMatrixf )(const GLfloat *m);
extern void ( APIENTRY * qglLoadName )(GLuint name);
extern void ( APIENTRY * qglLogicOp )(GLenum opcode);
extern void ( APIENTRY * qglMap1d )(GLenum target, GLdouble u1, GLdouble u2, GLint stride, GLint order, const GLdouble *points);
extern void ( APIENTRY * qglMap1f )(GLenum target, GLfloat u1, GLfloat u2, GLint stride, GLint order, const GLfloat *points);
extern void ( APIENTRY * qglMap2d )(GLenum target, GLdouble u1, GLdouble u2, GLint ustride, GLint uorder, GLdouble v1, GLdouble v2, GLint vstride, GLint vorder, const GLdouble *points);
extern void ( APIENTRY * qglMap2f )(GLenum target, GLfloat u1, GLfloat u2, GLint ustride, GLint uorder, GLfloat v1, GLfloat v2, GLint vstride, GLint vorder, const GLfloat *points);
extern void ( APIENTRY * qglMapGrid1d )(GLint un, GLdouble u1, GLdouble u2);
extern void ( APIENTRY * qglMapGrid1f )(GLint un, GLfloat u1, GLfloat u2);
extern void ( APIENTRY * qglMapGrid2d )(GLint un, GLdouble u1, GLdouble u2, GLint vn, GLdouble v1, GLdouble v2);
extern void ( APIENTRY * qglMapGrid2f )(GLint un, GLfloat u1, GLfloat u2, GLint vn, GLfloat v1, GLfloat v2);
extern void ( APIENTRY * qglMaterialf )(GLenum face, GLenum pname, GLfloat param);
extern void ( APIENTRY * qglMaterialfv )(GLenum face, GLenum pname, const GLfloat *params);
extern void ( APIENTRY * qglMateriali )(GLenum face, GLenum pname, GLint param);
extern void ( APIENTRY * qglMaterialiv )(GLenum face, GLenum pname, const GLint *params);
extern void ( APIENTRY * qglMatrixMode )(GLenum mode);
extern void ( APIENTRY * qglMultMatrixd )(const GLdouble *m);
extern void ( APIENTRY * qglMultMatrixf )(const GLfloat *m);
extern void ( APIENTRY * qglNewList )(GLuint list, GLenum mode);
extern void ( APIENTRY * qglNormal3b )(GLbyte nx, GLbyte ny, GLbyte nz);
extern void ( APIENTRY * qglNormal3bv )(const GLbyte *v);
extern void ( APIENTRY * qglNormal3d )(GLdouble nx, GLdouble ny, GLdouble nz);
extern void ( APIENTRY * qglNormal3dv )(const GLdouble *v);
extern void ( APIENTRY * qglNormal3f )(GLfloat nx, GLfloat ny, GLfloat nz);
extern void ( APIENTRY * qglNormal3fv )(const GLfloat *v);
extern void ( APIENTRY * qglNormal3i )(GLint nx, GLint ny, GLint nz);
extern void ( APIENTRY * qglNormal3iv )(const GLint *v);
extern void ( APIENTRY * qglNormal3s )(GLshort nx, GLshort ny, GLshort nz);
extern void ( APIENTRY * qglNormal3sv )(const GLshort *v);
extern void ( APIENTRY * qglNormalPointer )(GLenum type, GLsizei stride, const GLvoid *pointer);
extern void ( APIENTRY * qglOrtho )(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble zNear, GLdouble zFar);
extern void ( APIENTRY * qglPassThrough )(GLfloat token);
extern void ( APIENTRY * qglPixelMapfv )(GLenum map, GLsizei mapsize, const GLfloat *values);
extern void ( APIENTRY * qglPixelMapuiv )(GLenum map, GLsizei mapsize, const GLuint *values);
extern void ( APIENTRY * qglPixelMapusv )(GLenum map, GLsizei mapsize, const GLushort *values);
extern void ( APIENTRY * qglPixelStoref )(GLenum pname, GLfloat param);
extern void ( APIENTRY * qglPixelStorei )(GLenum pname, GLint param);
extern void ( APIENTRY * qglPixelTransferf )(GLenum pname, GLfloat param);
extern void ( APIENTRY * qglPixelTransferi )(GLenum pname, GLint param);
extern void ( APIENTRY * qglPixelZoom )(GLfloat xfactor, GLfloat yfactor);
extern void ( APIENTRY * qglPointSize )(GLfloat size);
extern void ( APIENTRY * qglPolygonMode )(GLenum face, GLenum mode);
extern void ( APIENTRY * qglPolygonOffset )(GLfloat factor, GLfloat units);
extern void ( APIENTRY * qglPolygonStipple )(const GLubyte *mask);
extern void ( APIENTRY * qglPopAttrib )(void);
extern void ( APIENTRY * qglPopClientAttrib )(void);
extern void ( APIENTRY * qglPopMatrix )(void);
extern void ( APIENTRY * qglPopName )(void);
extern void ( APIENTRY * qglPrioritizeTextures )(GLsizei n, const GLuint *textures, const GLclampf *priorities);
extern void ( APIENTRY * qglPushAttrib )(GLbitfield mask);
extern void ( APIENTRY * qglPushClientAttrib )(GLbitfield mask);
extern void ( APIENTRY * qglPushMatrix )(void);
extern void ( APIENTRY * qglPushName )(GLuint name);
extern void ( APIENTRY * qglRasterPos2d )(GLdouble x, GLdouble y);
extern void ( APIENTRY * qglRasterPos2dv )(const GLdouble *v);
extern void ( APIENTRY * qglRasterPos2f )(GLfloat x, GLfloat y);
extern void ( APIENTRY * qglRasterPos2fv )(const GLfloat *v);
extern void ( APIENTRY * qglRasterPos2i )(GLint x, GLint y);
extern void ( APIENTRY * qglRasterPos2iv )(const GLint *v);
extern void ( APIENTRY * qglRasterPos2s )(GLshort x, GLshort y);
extern void ( APIENTRY * qglRasterPos2sv )(const GLshort *v);
extern void ( APIENTRY * qglRasterPos3d )(GLdouble x, GLdouble y, GLdouble z);
extern void ( APIENTRY * qglRasterPos3dv )(const GLdouble *v);
extern void ( APIENTRY * qglRasterPos3f )(GLfloat x, GLfloat y, GLfloat z);
extern void ( APIENTRY * qglRasterPos3fv )(const GLfloat *v);
extern void ( APIENTRY * qglRasterPos3i )(GLint x, GLint y, GLint z);
extern void ( APIENTRY * qglRasterPos3iv )(const GLint *v);
extern void ( APIENTRY * qglRasterPos3s )(GLshort x, GLshort y, GLshort z);
extern void ( APIENTRY * qglRasterPos3sv )(const GLshort *v);
extern void ( APIENTRY * qglRasterPos4d )(GLdouble x, GLdouble y, GLdouble z, GLdouble w);
extern void ( APIENTRY * qglRasterPos4dv )(const GLdouble *v);
extern void ( APIENTRY * qglRasterPos4f )(GLfloat x, GLfloat y, GLfloat z, GLfloat w);
extern void ( APIENTRY * qglRasterPos4fv )(const GLfloat *v);
extern void ( APIENTRY * qglRasterPos4i )(GLint x, GLint y, GLint z, GLint w);
extern void ( APIENTRY * qglRasterPos4iv )(const GLint *v);
extern void ( APIENTRY * qglRasterPos4s )(GLshort x, GLshort y, GLshort z, GLshort w);
extern void ( APIENTRY * qglRasterPos4sv )(const GLshort *v);
extern void ( APIENTRY * qglReadBuffer )(GLenum mode);
extern void ( APIENTRY * qglReadPixels )(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLvoid *pixels);
extern void ( APIENTRY * qglRectd )(GLdouble x1, GLdouble y1, GLdouble x2, GLdouble y2);
extern void ( APIENTRY * qglRectdv )(const GLdouble *v1, const GLdouble *v2);
extern void ( APIENTRY * qglRectf )(GLfloat x1, GLfloat y1, GLfloat x2, GLfloat y2);
extern void ( APIENTRY * qglRectfv )(const GLfloat *v1, const GLfloat *v2);
extern void ( APIENTRY * qglRecti )(GLint x1, GLint y1, GLint x2, GLint y2);
extern void ( APIENTRY * qglRectiv )(const GLint *v1, const GLint *v2);
extern void ( APIENTRY * qglRects )(GLshort x1, GLshort y1, GLshort x2, GLshort y2);
extern void ( APIENTRY * qglRectsv )(const GLshort *v1, const GLshort *v2);
extern GLint ( APIENTRY * qglRenderMode )(GLenum mode);
extern void ( APIENTRY * qglRotated )(GLdouble angle, GLdouble x, GLdouble y, GLdouble z);
extern void ( APIENTRY * qglRotatef )(GLfloat angle, GLfloat x, GLfloat y, GLfloat z);
extern void ( APIENTRY * qglScaled )(GLdouble x, GLdouble y, GLdouble z);
extern void ( APIENTRY * qglScalef )(GLfloat x, GLfloat y, GLfloat z);
extern void ( APIENTRY * qglScissor )(GLint x, GLint y, GLsizei width, GLsizei height);
extern void ( APIENTRY * qglSelectBuffer )(GLsizei size, GLuint *buffer);
extern void ( APIENTRY * qglShadeModel )(GLenum mode);
extern void ( APIENTRY * qglStencilFunc )(GLenum func, GLint ref, GLuint mask);
extern void ( APIENTRY * qglStencilMask )(GLuint mask);
extern void ( APIENTRY * qglStencilOp )(GLenum fail, GLenum zfail, GLenum zpass);
extern void ( APIENTRY * qglTexCoord1d )(GLdouble s);
extern void ( APIENTRY * qglTexCoord1dv )(const GLdouble *v);
extern void ( APIENTRY * qglTexCoord1f )(GLfloat s);
extern void ( APIENTRY * qglTexCoord1fv )(const GLfloat *v);
extern void ( APIENTRY * qglTexCoord1i )(GLint s);
extern void ( APIENTRY * qglTexCoord1iv )(const GLint *v);
extern void ( APIENTRY * qglTexCoord1s )(GLshort s);
extern void ( APIENTRY * qglTexCoord1sv )(const GLshort *v);
extern void ( APIENTRY * qglTexCoord2d )(GLdouble s, GLdouble t);
extern void ( APIENTRY * qglTexCoord2dv )(const GLdouble *v);
extern void ( APIENTRY * qglTexCoord2f )(GLfloat s, GLfloat t);
extern void ( APIENTRY * qglTexCoord2fv )(const GLfloat *v);
extern void ( APIENTRY * qglTexCoord2i )(GLint s, GLint t);
extern void ( APIENTRY * qglTexCoord2iv )(const GLint *v);
extern void ( APIENTRY * qglTexCoord2s )(GLshort s, GLshort t);
extern void ( APIENTRY * qglTexCoord2sv )(const GLshort *v);
extern void ( APIENTRY * qglTexCoord3d )(GLdouble s, GLdouble t, GLdouble r);
extern void ( APIENTRY * qglTexCoord3dv )(const GLdouble *v);
extern void ( APIENTRY * qglTexCoord3f )(GLfloat s, GLfloat t, GLfloat r);
extern void ( APIENTRY * qglTexCoord3fv )(const GLfloat *v);
extern void ( APIENTRY * qglTexCoord3i )(GLint s, GLint t, GLint r);
extern void ( APIENTRY * qglTexCoord3iv )(const GLint *v);
extern void ( APIENTRY * qglTexCoord3s )(GLshort s, GLshort t, GLshort r);
extern void ( APIENTRY * qglTexCoord3sv )(const GLshort *v);
extern void ( APIENTRY * qglTexCoord4d )(GLdouble s, GLdouble t, GLdouble r, GLdouble q);
extern void ( APIENTRY * qglTexCoord4dv )(const GLdouble *v);
extern void ( APIENTRY * qglTexCoord4f )(GLfloat s, GLfloat t, GLfloat r, GLfloat q);
extern void ( APIENTRY * qglTexCoord4fv )(const GLfloat *v);
extern void ( APIENTRY * qglTexCoord4i )(GLint s, GLint t, GLint r, GLint q);
extern void ( APIENTRY * qglTexCoord4iv )(const GLint *v);
extern void ( APIENTRY * qglTexCoord4s )(GLshort s, GLshort t, GLshort r, GLshort q);
extern void ( APIENTRY * qglTexCoord4sv )(const GLshort *v);
extern void ( APIENTRY * qglTexCoordPointer )(GLint size, GLenum type, GLsizei stride, const GLvoid *pointer);
extern void ( APIENTRY * qglTexEnvf )(GLenum target, GLenum pname, GLfloat param);
extern void ( APIENTRY * qglTexEnvfv )(GLenum target, GLenum pname, const GLfloat *params);
extern void ( APIENTRY * qglTexEnvi )(GLenum target, GLenum pname, GLint param);
extern void ( APIENTRY * qglTexEnviv )(GLenum target, GLenum pname, const GLint *params);
extern void ( APIENTRY * qglTexGend )(GLenum coord, GLenum pname, GLdouble param);
extern void ( APIENTRY * qglTexGendv )(GLenum coord, GLenum pname, const GLdouble *params);
extern void ( APIENTRY * qglTexGenf )(GLenum coord, GLenum pname, GLfloat param);
extern void ( APIENTRY * qglTexGenfv )(GLenum coord, GLenum pname, const GLfloat *params);
extern void ( APIENTRY * qglTexGeni )(GLenum coord, GLenum pname, GLint param);
extern void ( APIENTRY * qglTexGeniv )(GLenum coord, GLenum pname, const GLint *params);
extern void ( APIENTRY * qglTexImage1D )(GLenum target, GLint level, GLint internalformat, GLsizei width, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
extern void ( APIENTRY * qglTexImage2D )(GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
extern void ( APIENTRY * qglTexParameterf )(GLenum target, GLenum pname, GLfloat param);
extern void ( APIENTRY * qglTexParameterfv )(GLenum target, GLenum pname, const GLfloat *params);
extern void ( APIENTRY * qglTexParameteri )(GLenum target, GLenum pname, GLint param);
extern void ( APIENTRY * qglTexParameteriv )(GLenum target, GLenum pname, const GLint *params);
extern void ( APIENTRY * qglTexSubImage1D )(GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLenum type, const GLvoid *pixels);
extern void ( APIENTRY * qglTexSubImage2D )(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid *pixels);
extern void ( APIENTRY * qglTranslated )(GLdouble x, GLdouble y, GLdouble z);
extern void ( APIENTRY * qglTranslatef )(GLfloat x, GLfloat y, GLfloat z);
extern void ( APIENTRY * qglVertex2d )(GLdouble x, GLdouble y);
extern void ( APIENTRY * qglVertex2dv )(const GLdouble *v);
extern void ( APIENTRY * qglVertex2f )(GLfloat x, GLfloat y);
extern void ( APIENTRY * qglVertex2fv )(const GLfloat *v);
extern void ( APIENTRY * qglVertex2i )(GLint x, GLint y);
extern void ( APIENTRY * qglVertex2iv )(const GLint *v);
extern void ( APIENTRY * qglVertex2s )(GLshort x, GLshort y);
extern void ( APIENTRY * qglVertex2sv )(const GLshort *v);
extern void ( APIENTRY * qglVertex3d )(GLdouble x, GLdouble y, GLdouble z);
extern void ( APIENTRY * qglVertex3dv )(const GLdouble *v);
extern void ( APIENTRY * qglVertex3f )(GLfloat x, GLfloat y, GLfloat z);
extern void ( APIENTRY * qglVertex3fv )(const GLfloat *v);
extern void ( APIENTRY * qglVertex3i )(GLint x, GLint y, GLint z);
extern void ( APIENTRY * qglVertex3iv )(const GLint *v);
extern void ( APIENTRY * qglVertex3s )(GLshort x, GLshort y, GLshort z);
extern void ( APIENTRY * qglVertex3sv )(const GLshort *v);
extern void ( APIENTRY * qglVertex4d )(GLdouble x, GLdouble y, GLdouble z, GLdouble w);
extern void ( APIENTRY * qglVertex4dv )(const GLdouble *v);
extern void ( APIENTRY * qglVertex4f )(GLfloat x, GLfloat y, GLfloat z, GLfloat w);
extern void ( APIENTRY * qglVertex4fv )(const GLfloat *v);
extern void ( APIENTRY * qglVertex4i )(GLint x, GLint y, GLint z, GLint w);
extern void ( APIENTRY * qglVertex4iv )(const GLint *v);
extern void ( APIENTRY * qglVertex4s )(GLshort x, GLshort y, GLshort z, GLshort w);
extern void ( APIENTRY * qglVertex4sv )(const GLshort *v);
extern void ( APIENTRY * qglVertexPointer )(GLint size, GLenum type, GLsizei stride, const GLvoid *pointer);
extern void ( APIENTRY * qglViewport )(GLint x, GLint y, GLsizei width, GLsizei height);
#if defined( _WIN32 )
extern int ( WINAPI * qwglChoosePixelFormat )(HDC, CONST PIXELFORMATDESCRIPTOR *);
extern int ( WINAPI * qwglDescribePixelFormat) (HDC, int, UINT, LPPIXELFORMATDESCRIPTOR);
extern int ( WINAPI * qwglGetPixelFormat)(HDC);
extern BOOL ( WINAPI * qwglSetPixelFormat)(HDC, int, CONST PIXELFORMATDESCRIPTOR *);
extern BOOL ( WINAPI * qwglSwapBuffers)(HDC);
extern BOOL ( WINAPI * qwglGetDeviceGammaRamp3DFX)( HDC, LPVOID );
extern BOOL ( WINAPI * qwglSetDeviceGammaRamp3DFX)( HDC, LPVOID );
extern BOOL ( WINAPI * qwglCopyContext)(HGLRC, HGLRC, UINT);
extern HGLRC ( WINAPI * qwglCreateContext)(HDC);
extern HGLRC ( WINAPI * qwglCreateLayerContext)(HDC, int);
extern BOOL ( WINAPI * qwglDeleteContext)(HGLRC);
extern HGLRC ( WINAPI * qwglGetCurrentContext)(VOID);
extern HDC ( WINAPI * qwglGetCurrentDC)(VOID);
extern PROC ( WINAPI * qwglGetProcAddress)(LPCSTR);
extern BOOL ( WINAPI * qwglMakeCurrent)(HDC, HGLRC);
extern BOOL ( WINAPI * qwglShareLists)(HGLRC, HGLRC);
extern BOOL ( WINAPI * qwglUseFontBitmaps)(HDC, DWORD, DWORD, DWORD);
extern BOOL ( WINAPI * qwglUseFontOutlines)(HDC, DWORD, DWORD, DWORD, FLOAT,
FLOAT, int, LPGLYPHMETRICSFLOAT);
extern BOOL ( WINAPI * qwglDescribeLayerPlane)(HDC, int, int, UINT,
LPLAYERPLANEDESCRIPTOR);
extern int ( WINAPI * qwglSetLayerPaletteEntries)(HDC, int, int, int,
CONST COLORREF *);
extern int ( WINAPI * qwglGetLayerPaletteEntries)(HDC, int, int, int,
COLORREF *);
extern BOOL ( WINAPI * qwglRealizeLayerPalette)(HDC, int, BOOL);
extern BOOL ( WINAPI * qwglSwapLayerBuffers)(HDC, UINT);
extern BOOL ( WINAPI * qwglSwapIntervalEXT)( int interval );
#endif // _WIN32
#if ( (defined __linux__ ) || (defined __FreeBSD__ ) ) // rb010123
//FX Mesa Functions
// bk001129 - from cvs1.17 (mkv)
#if defined (__FX__)
extern fxMesaContext (*qfxMesaCreateContext)(GLuint win, GrScreenResolution_t, GrScreenRefresh_t, const GLint attribList[]);
extern fxMesaContext (*qfxMesaCreateBestContext)(GLuint win, GLint width, GLint height, const GLint attribList[]);
extern void (*qfxMesaDestroyContext)(fxMesaContext ctx);
extern void (*qfxMesaMakeCurrent)(fxMesaContext ctx);
extern fxMesaContext (*qfxMesaGetCurrentContext)(void);
extern void (*qfxMesaSwapBuffers)(void);
#endif
//GLX Functions
extern XVisualInfo * (*qglXChooseVisual)( Display *dpy, int screen, int *attribList );
extern GLXContext (*qglXCreateContext)( Display *dpy, XVisualInfo *vis, GLXContext shareList, Bool direct );
extern void (*qglXDestroyContext)( Display *dpy, GLXContext ctx );
extern Bool (*qglXMakeCurrent)( Display *dpy, GLXDrawable drawable, GLXContext ctx);
extern void (*qglXCopyContext)( Display *dpy, GLXContext src, GLXContext dst, GLuint mask );
extern void (*qglXSwapBuffers)( Display *dpy, GLXDrawable drawable );
#endif // __linux__ || __FreeBSD__ // rb010123
#endif // _WIN32 && __linux__
#endif

357
code/renderer/qgl_linked.h Normal file
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/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.
This file is part of Quake III Arena source code.
Quake III Arena source code is free software; you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
Quake III Arena source code is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Foobar; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
===========================================================================
*/
#define qglAccum glAccum
#define qglAlphaFunc glAlphaFunc
#define qglAreTexturesResident glAreTexturesResident
#define qglArrayElement glArrayElement
#define qglBegin glBegin
#define qglBindTexture glBindTexture
#define qglBitmap glBitmap
#define qglBlendFunc glBlendFunc
#define qglCallList glCallList
#define qglCallLists glCallLists
#define qglClear glClear
#define qglClearAccum glClearAccum
#define qglClearColor glClearColor
#define qglClearDepth glClearDepth
#define qglClearIndex glClearIndex
#define qglClearStencil glClearStencil
#define qglClipPlane glClipPlane
#define qglColor3b glColor3b
#define qglColor3bv glColor3bv
#define qglColor3d glColor3d
#define qglColor3dv glColor3dv
#define qglColor3f glColor3f
#define qglColor3fv glColor3fv
#define qglColor3i glColor3i
#define qglColor3iv glColor3iv
#define qglColor3s glColor3s
#define qglColor3sv glColor3sv
#define qglColor3ub glColor3ub
#define qglColor3ubv glColor3ubv
#define qglColor3ui glColor3ui
#define qglColor3uiv glColor3uiv
#define qglColor3us glColor3us
#define qglColor3usv glColor3usv
#define qglColor4b glColor4b
#define qglColor4bv glColor4bv
#define qglColor4d glColor4d
#define qglColor4dv glColor4dv
#define qglColor4f glColor4f
#define qglColor4fv glColor4fv
#define qglColor4i glColor4i
#define qglColor4iv glColor4iv
#define qglColor4s glColor4s
#define qglColor4sv glColor4sv
#define qglColor4ub glColor4ub
#define qglColor4ubv glColor4ubv
#define qglColor4ui glColor4ui
#define qglColor4uiv glColor4uiv
#define qglColor4us glColor4us
#define qglColor4usv glColor4usv
#define qglColorMask glColorMask
#define qglColorMaterial glColorMaterial
#define qglColorPointer glColorPointer
#define qglCopyPixels glCopyPixels
#define qglCopyTexImage1D glCopyTexImage1D
#define qglCopyTexImage2D glCopyTexImage2D
#define qglCopyTexSubImage1D glCopyTexSubImage1D
#define qglCopyTexSubImage2D glCopyTexSubImage2D
#define qglCullFace glCullFace
#define qglDeleteLists glDeleteLists
#define qglDeleteTextures glDeleteTextures
#define qglDepthFunc glDepthFunc
#define qglDepthMask glDepthMask
#define qglDepthRange glDepthRange
#define qglDisable glDisable
#define qglDisableClientState glDisableClientState
#define qglDrawArrays glDrawArrays
#define qglDrawBuffer glDrawBuffer
#define qglDrawElements glDrawElements
#define qglDrawPixels glDrawPixels
#define qglEdgeFlag glEdgeFlag
#define qglEdgeFlagPointer glEdgeFlagPointer
#define qglEdgeFlagv glEdgeFlagv
#define qglEnable glEnable
#define qglEnableClientState glEnableClientState
#define qglEnd glEnd
#define qglEndList glEndList
#define qglEvalCoord1d glEvalCoord1d
#define qglEvalCoord1dv glEvalCoord1dv
#define qglEvalCoord1f glEvalCoord1f
#define qglEvalCoord1fv glEvalCoord1fv
#define qglEvalCoord2d glEvalCoord2d
#define qglEvalCoord2dv glEvalCoord2dv
#define qglEvalCoord2f glEvalCoord2f
#define qglEvalCoord2fv glEvalCoord2fv
#define qglEvalMesh1 glEvalMesh1
#define qglEvalMesh2 glEvalMesh2
#define qglEvalPoint1 glEvalPoint1
#define qglEvalPoint2 glEvalPoint2
#define qglFeedbackBuffer glFeedbackBuffer
#define qglFinish glFinish
#define qglFlush glFlush
#define qglFogf glFogf
#define qglFogfv glFogfv
#define qglFogi glFogi
#define qglFogiv glFogiv
#define qglFrontFace glFrontFace
#define qglFrustum glFrustum
#define qglGenLists glGenLists
#define qglGenTextures glGenTextures
#define qglGetBooleanv glGetBooleanv
#define qglGetClipPlane glGetClipPlane
#define qglGetDoublev glGetDoublev
#define qglGetError glGetError
#define qglGetFloatv glGetFloatv
#define qglGetIntegerv glGetIntegerv
#define qglGetLightfv glGetLightfv
#define qglGetLightiv glGetLightiv
#define qglGetMapdv glGetMapdv
#define qglGetMapfv glGetMapfv
#define qglGetMapiv glGetMapiv
#define qglGetMaterialfv glGetMaterialfv
#define qglGetMaterialiv glGetMaterialiv
#define qglGetPixelMapfv glGetPixelMapfv
#define qglGetPixelMapuiv glGetPixelMapuiv
#define qglGetPixelMapusv glGetPixelMapusv
#define qglGetPointerv glGetPointerv
#define qglGetPolygonStipple glGetPolygonStipple
#define qglGetString glGetString
#define qglGetTexGendv glGetTexGendv
#define qglGetTexGenfv glGetTexGenfv
#define qglGetTexGeniv glGetTexGeniv
#define qglGetTexImage glGetTexImage
#define qglGetTexLevelParameterfv glGetTexLevelParameterfv
#define qglGetTexLevelParameteriv glGetTexLevelParameteriv
#define qglGetTexParameterfv glGetTexParameterfv
#define qglGetTexParameteriv glGetTexParameteriv
#define qglHint glHint
#define qglIndexMask glIndexMask
#define qglIndexPointer glIndexPointer
#define qglIndexd glIndexd
#define qglIndexdv glIndexdv
#define qglIndexf glIndexf
#define qglIndexfv glIndexfv
#define qglIndexi glIndexi
#define qglIndexiv glIndexiv
#define qglIndexs glIndexs
#define qglIndexsv glIndexsv
#define qglIndexub glIndexub
#define qglIndexubv glIndexubv
#define qglInitNames glInitNames
#define qglInterleavedArrays glInterleavedArrays
#define qglIsEnabled glIsEnabled
#define qglIsList glIsList
#define qglIsTexture glIsTexture
#define qglLightModelf glLightModelf
#define qglLightModelfv glLightModelfv
#define qglLightModeli glLightModeli
#define qglLightModeliv glLightModeliv
#define qglLightf glLightf
#define qglLightfv glLightfv
#define qglLighti glLighti
#define qglLightiv glLightiv
#define qglLineStipple glLineStipple
#define qglLineWidth glLineWidth
#define qglListBase glListBase
#define qglLoadIdentity glLoadIdentity
#define qglLoadMatrixd glLoadMatrixd
#define qglLoadMatrixf glLoadMatrixf
#define qglLoadName glLoadName
#define qglLogicOp glLogicOp
#define qglMap1d glMap1d
#define qglMap1f glMap1f
#define qglMap2d glMap2d
#define qglMap2f glMap2f
#define qglMapGrid1d glMapGrid1d
#define qglMapGrid1f glMapGrid1f
#define qglMapGrid2d glMapGrid2d
#define qglMapGrid2f glMapGrid2f
#define qglMaterialf glMaterialf
#define qglMaterialfv glMaterialfv
#define qglMateriali glMateriali
#define qglMaterialiv glMaterialiv
#define qglMatrixMode glMatrixMode
#define qglMultMatrixd glMultMatrixd
#define qglMultMatrixf glMultMatrixf
#define qglNewList glNewList
#define qglNormal3b glNormal3b
#define qglNormal3bv glNormal3bv
#define qglNormal3d glNormal3d
#define qglNormal3dv glNormal3dv
#define qglNormal3f glNormal3f
#define qglNormal3fv glNormal3fv
#define qglNormal3i glNormal3i
#define qglNormal3iv glNormal3iv
#define qglNormal3s glNormal3s
#define qglNormal3sv glNormal3sv
#define qglNormalPointer glNormalPointer
#define qglOrtho glOrtho
#define qglPassThrough glPassThrough
#define qglPixelMapfv glPixelMapfv
#define qglPixelMapuiv glPixelMapuiv
#define qglPixelMapusv glPixelMapusv
#define qglPixelStoref glPixelStoref
#define qglPixelStorei glPixelStorei
#define qglPixelTransferf glPixelTransferf
#define qglPixelTransferi glPixelTransferi
#define qglPixelZoom glPixelZoom
#define qglPointSize glPointSize
#define qglPolygonMode glPolygonMode
#define qglPolygonOffset glPolygonOffset
#define qglPolygonStipple glPolygonStipple
#define qglPopAttrib glPopAttrib
#define qglPopClientAttrib glPopClientAttrib
#define qglPopMatrix glPopMatrix
#define qglPopName glPopName
#define qglPrioritizeTextures glPrioritizeTextures
#define qglPushAttrib glPushAttrib
#define qglPushClientAttrib glPushClientAttrib
#define qglPushMatrix glPushMatrix
#define qglPushName glPushName
#define qglRasterPos2d glRasterPos2d
#define qglRasterPos2dv glRasterPos2dv
#define qglRasterPos2f glRasterPos2f
#define qglRasterPos2fv glRasterPos2fv
#define qglRasterPos2i glRasterPos2i
#define qglRasterPos2iv glRasterPos2iv
#define qglRasterPos2s glRasterPos2s
#define qglRasterPos2sv glRasterPos2sv
#define qglRasterPos3d glRasterPos3d
#define qglRasterPos3dv glRasterPos3dv
#define qglRasterPos3f glRasterPos3f
#define qglRasterPos3fv glRasterPos3fv
#define qglRasterPos3i glRasterPos3i
#define qglRasterPos3iv glRasterPos3iv
#define qglRasterPos3s glRasterPos3s
#define qglRasterPos3sv glRasterPos3sv
#define qglRasterPos4d glRasterPos4d
#define qglRasterPos4dv glRasterPos4dv
#define qglRasterPos4f glRasterPos4f
#define qglRasterPos4fv glRasterPos4fv
#define qglRasterPos4i glRasterPos4i
#define qglRasterPos4iv glRasterPos4iv
#define qglRasterPos4s glRasterPos4s
#define qglRasterPos4sv glRasterPos4sv
#define qglReadBuffer glReadBuffer
#define qglReadPixels glReadPixels
#define qglRectd glRectd
#define qglRectdv glRectdv
#define qglRectf glRectf
#define qglRectfv glRectfv
#define qglRecti glRecti
#define qglRectiv glRectiv
#define qglRects glRects
#define qglRectsv glRectsv
#define qglRenderMode glRenderMode
#define qglRotated glRotated
#define qglRotatef glRotatef
#define qglScaled glScaled
#define qglScalef glScalef
#define qglScissor glScissor
#define qglSelectBuffer glSelectBuffer
#define qglShadeModel glShadeModel
#define qglStencilFunc glStencilFunc
#define qglStencilMask glStencilMask
#define qglStencilOp glStencilOp
#define qglTexCoord1d glTexCoord1d
#define qglTexCoord1dv glTexCoord1dv
#define qglTexCoord1f glTexCoord1f
#define qglTexCoord1fv glTexCoord1fv
#define qglTexCoord1i glTexCoord1i
#define qglTexCoord1iv glTexCoord1iv
#define qglTexCoord1s glTexCoord1s
#define qglTexCoord1sv glTexCoord1sv
#define qglTexCoord2d glTexCoord2d
#define qglTexCoord2dv glTexCoord2dv
#define qglTexCoord2f glTexCoord2f
#define qglTexCoord2fv glTexCoord2fv
#define qglTexCoord2i glTexCoord2i
#define qglTexCoord2iv glTexCoord2iv
#define qglTexCoord2s glTexCoord2s
#define qglTexCoord2sv glTexCoord2sv
#define qglTexCoord3d glTexCoord3d
#define qglTexCoord3dv glTexCoord3dv
#define qglTexCoord3f glTexCoord3f
#define qglTexCoord3fv glTexCoord3fv
#define qglTexCoord3i glTexCoord3i
#define qglTexCoord3iv glTexCoord3iv
#define qglTexCoord3s glTexCoord3s
#define qglTexCoord3sv glTexCoord3sv
#define qglTexCoord4d glTexCoord4d
#define qglTexCoord4dv glTexCoord4dv
#define qglTexCoord4f glTexCoord4f
#define qglTexCoord4fv glTexCoord4fv
#define qglTexCoord4i glTexCoord4i
#define qglTexCoord4iv glTexCoord4iv
#define qglTexCoord4s glTexCoord4s
#define qglTexCoord4sv glTexCoord4sv
#define qglTexCoordPointer glTexCoordPointer
#define qglTexEnvf glTexEnvf
#define qglTexEnvfv glTexEnvfv
#define qglTexEnvi glTexEnvi
#define qglTexEnviv glTexEnviv
#define qglTexGend glTexGend
#define qglTexGendv glTexGendv
#define qglTexGenf glTexGenf
#define qglTexGenfv glTexGenfv
#define qglTexGeni glTexGeni
#define qglTexGeniv glTexGeniv
#define qglTexImage1D glTexImage1D
#define qglTexImage2D glTexImage2D
#define qglTexParameterf glTexParameterf
#define qglTexParameterfv glTexParameterfv
#define qglTexParameteri glTexParameteri
#define qglTexParameteriv glTexParameteriv
#define qglTexSubImage1D glTexSubImage1D
#define qglTexSubImage2D glTexSubImage2D
#define qglTranslated glTranslated
#define qglTranslatef glTranslatef
#define qglVertex2d glVertex2d
#define qglVertex2dv glVertex2dv
#define qglVertex2f glVertex2f
#define qglVertex2fv glVertex2fv
#define qglVertex2i glVertex2i
#define qglVertex2iv glVertex2iv
#define qglVertex2s glVertex2s
#define qglVertex2sv glVertex2sv
#define qglVertex3d glVertex3d
#define qglVertex3dv glVertex3dv
#define qglVertex3f glVertex3f
#define qglVertex3fv glVertex3fv
#define qglVertex3i glVertex3i
#define qglVertex3iv glVertex3iv
#define qglVertex3s glVertex3s
#define qglVertex3sv glVertex3sv
#define qglVertex4d glVertex4d
#define qglVertex4dv glVertex4dv
#define qglVertex4f glVertex4f
#define qglVertex4fv glVertex4fv
#define qglVertex4i glVertex4i
#define qglVertex4iv glVertex4iv
#define qglVertex4s glVertex4s
#define qglVertex4sv glVertex4sv
#define qglVertexPointer glVertexPointer
#define qglViewport glViewport

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EXPORTS
GetRefAPI

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/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.
This file is part of Quake III Arena source code.
Quake III Arena source code is free software; you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
Quake III Arena source code is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Foobar; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
===========================================================================
*/
#include "tr_local.h"
/*
All bones should be an identity orientation to display the mesh exactly
as it is specified.
For all other frames, the bones represent the transformation from the
orientation of the bone in the base frame to the orientation in this
frame.
*/
/*
==============
R_AddAnimSurfaces
==============
*/
void R_AddAnimSurfaces( trRefEntity_t *ent ) {
md4Header_t *header;
md4Surface_t *surface;
md4LOD_t *lod;
shader_t *shader;
int i;
header = tr.currentModel->md4;
lod = (md4LOD_t *)( (byte *)header + header->ofsLODs );
surface = (md4Surface_t *)( (byte *)lod + lod->ofsSurfaces );
for ( i = 0 ; i < lod->numSurfaces ; i++ ) {
shader = R_GetShaderByHandle( surface->shaderIndex );
R_AddDrawSurf( (void *)surface, shader, 0 /*fogNum*/, qfalse );
surface = (md4Surface_t *)( (byte *)surface + surface->ofsEnd );
}
}
/*
==============
RB_SurfaceAnim
==============
*/
void RB_SurfaceAnim( md4Surface_t *surface ) {
int i, j, k;
float frontlerp, backlerp;
int *triangles;
int indexes;
int baseIndex, baseVertex;
int numVerts;
md4Vertex_t *v;
md4Bone_t bones[MD4_MAX_BONES];
md4Bone_t *bonePtr, *bone;
md4Header_t *header;
md4Frame_t *frame;
md4Frame_t *oldFrame;
int frameSize;
if ( backEnd.currentEntity->e.oldframe == backEnd.currentEntity->e.frame ) {
backlerp = 0;
frontlerp = 1;
} else {
backlerp = backEnd.currentEntity->e.backlerp;
frontlerp = 1.0f - backlerp;
}
header = (md4Header_t *)((byte *)surface + surface->ofsHeader);
frameSize = (int)( &((md4Frame_t *)0)->bones[ header->numBones ] );
frame = (md4Frame_t *)((byte *)header + header->ofsFrames +
backEnd.currentEntity->e.frame * frameSize );
oldFrame = (md4Frame_t *)((byte *)header + header->ofsFrames +
backEnd.currentEntity->e.oldframe * frameSize );
RB_CheckOverflow( surface->numVerts, surface->numTriangles * 3 );
triangles = (int *) ((byte *)surface + surface->ofsTriangles);
indexes = surface->numTriangles * 3;
baseIndex = tess.numIndexes;
baseVertex = tess.numVertexes;
for (j = 0 ; j < indexes ; j++) {
tess.indexes[baseIndex + j] = baseIndex + triangles[j];
}
tess.numIndexes += indexes;
//
// lerp all the needed bones
//
if ( !backlerp ) {
// no lerping needed
bonePtr = frame->bones;
} else {
bonePtr = bones;
for ( i = 0 ; i < header->numBones*12 ; i++ ) {
((float *)bonePtr)[i] = frontlerp * ((float *)frame->bones)[i]
+ backlerp * ((float *)oldFrame->bones)[i];
}
}
//
// deform the vertexes by the lerped bones
//
numVerts = surface->numVerts;
// FIXME
// This makes TFC's skeletons work. Shouldn't be necessary anymore, but left
// in for reference.
//v = (md4Vertex_t *) ((byte *)surface + surface->ofsVerts + 12);
v = (md4Vertex_t *) ((byte *)surface + surface->ofsVerts);
for ( j = 0; j < numVerts; j++ ) {
vec3_t tempVert, tempNormal;
md4Weight_t *w;
VectorClear( tempVert );
VectorClear( tempNormal );
w = v->weights;
for ( k = 0 ; k < v->numWeights ; k++, w++ ) {
bone = bonePtr + w->boneIndex;
tempVert[0] += w->boneWeight * ( DotProduct( bone->matrix[0], w->offset ) + bone->matrix[0][3] );
tempVert[1] += w->boneWeight * ( DotProduct( bone->matrix[1], w->offset ) + bone->matrix[1][3] );
tempVert[2] += w->boneWeight * ( DotProduct( bone->matrix[2], w->offset ) + bone->matrix[2][3] );
tempNormal[0] += w->boneWeight * DotProduct( bone->matrix[0], v->normal );
tempNormal[1] += w->boneWeight * DotProduct( bone->matrix[1], v->normal );
tempNormal[2] += w->boneWeight * DotProduct( bone->matrix[2], v->normal );
}
tess.xyz[baseVertex + j][0] = tempVert[0];
tess.xyz[baseVertex + j][1] = tempVert[1];
tess.xyz[baseVertex + j][2] = tempVert[2];
tess.normal[baseVertex + j][0] = tempNormal[0];
tess.normal[baseVertex + j][1] = tempNormal[1];
tess.normal[baseVertex + j][2] = tempNormal[2];
tess.texCoords[baseVertex + j][0][0] = v->texCoords[0];
tess.texCoords[baseVertex + j][0][1] = v->texCoords[1];
// FIXME
// This makes TFC's skeletons work. Shouldn't be necessary anymore, but left
// in for reference.
//v = (md4Vertex_t *)( ( byte * )&v->weights[v->numWeights] + 12 );
v = (md4Vertex_t *)&v->weights[v->numWeights];
}
tess.numVertexes += surface->numVerts;
}

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/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.
This file is part of Quake III Arena source code.
Quake III Arena source code is free software; you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
Quake III Arena source code is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Foobar; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
===========================================================================
*/
#include "tr_local.h"
volatile renderCommandList_t *renderCommandList;
volatile qboolean renderThreadActive;
/*
=====================
R_PerformanceCounters
=====================
*/
void R_PerformanceCounters( void ) {
if ( !r_speeds->integer ) {
// clear the counters even if we aren't printing
Com_Memset( &tr.pc, 0, sizeof( tr.pc ) );
Com_Memset( &backEnd.pc, 0, sizeof( backEnd.pc ) );
return;
}
if (r_speeds->integer == 1) {
ri.Printf (PRINT_ALL, "%i/%i shaders/surfs %i leafs %i verts %i/%i tris %.2f mtex %.2f dc\n",
backEnd.pc.c_shaders, backEnd.pc.c_surfaces, tr.pc.c_leafs, backEnd.pc.c_vertexes,
backEnd.pc.c_indexes/3, backEnd.pc.c_totalIndexes/3,
R_SumOfUsedImages()/(1000000.0f), backEnd.pc.c_overDraw / (float)(glConfig.vidWidth * glConfig.vidHeight) );
} else if (r_speeds->integer == 2) {
ri.Printf (PRINT_ALL, "(patch) %i sin %i sclip %i sout %i bin %i bclip %i bout\n",
tr.pc.c_sphere_cull_patch_in, tr.pc.c_sphere_cull_patch_clip, tr.pc.c_sphere_cull_patch_out,
tr.pc.c_box_cull_patch_in, tr.pc.c_box_cull_patch_clip, tr.pc.c_box_cull_patch_out );
ri.Printf (PRINT_ALL, "(md3) %i sin %i sclip %i sout %i bin %i bclip %i bout\n",
tr.pc.c_sphere_cull_md3_in, tr.pc.c_sphere_cull_md3_clip, tr.pc.c_sphere_cull_md3_out,
tr.pc.c_box_cull_md3_in, tr.pc.c_box_cull_md3_clip, tr.pc.c_box_cull_md3_out );
} else if (r_speeds->integer == 3) {
ri.Printf (PRINT_ALL, "viewcluster: %i\n", tr.viewCluster );
} else if (r_speeds->integer == 4) {
if ( backEnd.pc.c_dlightVertexes ) {
ri.Printf (PRINT_ALL, "dlight srf:%i culled:%i verts:%i tris:%i\n",
tr.pc.c_dlightSurfaces, tr.pc.c_dlightSurfacesCulled,
backEnd.pc.c_dlightVertexes, backEnd.pc.c_dlightIndexes / 3 );
}
}
else if (r_speeds->integer == 5 )
{
ri.Printf( PRINT_ALL, "zFar: %.0f\n", tr.viewParms.zFar );
}
else if (r_speeds->integer == 6 )
{
ri.Printf( PRINT_ALL, "flare adds:%i tests:%i renders:%i\n",
backEnd.pc.c_flareAdds, backEnd.pc.c_flareTests, backEnd.pc.c_flareRenders );
}
Com_Memset( &tr.pc, 0, sizeof( tr.pc ) );
Com_Memset( &backEnd.pc, 0, sizeof( backEnd.pc ) );
}
/*
====================
R_InitCommandBuffers
====================
*/
void R_InitCommandBuffers( void ) {
glConfig.smpActive = qfalse;
if ( r_smp->integer ) {
ri.Printf( PRINT_ALL, "Trying SMP acceleration...\n" );
if ( GLimp_SpawnRenderThread( RB_RenderThread ) ) {
ri.Printf( PRINT_ALL, "...succeeded.\n" );
glConfig.smpActive = qtrue;
} else {
ri.Printf( PRINT_ALL, "...failed.\n" );
}
}
}
/*
====================
R_ShutdownCommandBuffers
====================
*/
void R_ShutdownCommandBuffers( void ) {
// kill the rendering thread
if ( glConfig.smpActive ) {
GLimp_WakeRenderer( NULL );
glConfig.smpActive = qfalse;
}
}
/*
====================
R_IssueRenderCommands
====================
*/
int c_blockedOnRender;
int c_blockedOnMain;
void R_IssueRenderCommands( qboolean runPerformanceCounters ) {
renderCommandList_t *cmdList;
cmdList = &backEndData[tr.smpFrame]->commands;
assert(cmdList); // bk001205
// add an end-of-list command
*(int *)(cmdList->cmds + cmdList->used) = RC_END_OF_LIST;
// clear it out, in case this is a sync and not a buffer flip
cmdList->used = 0;
if ( glConfig.smpActive ) {
// if the render thread is not idle, wait for it
if ( renderThreadActive ) {
c_blockedOnRender++;
if ( r_showSmp->integer ) {
ri.Printf( PRINT_ALL, "R" );
}
} else {
c_blockedOnMain++;
if ( r_showSmp->integer ) {
ri.Printf( PRINT_ALL, "." );
}
}
// sleep until the renderer has completed
GLimp_FrontEndSleep();
}
// at this point, the back end thread is idle, so it is ok
// to look at it's performance counters
if ( runPerformanceCounters ) {
R_PerformanceCounters();
}
// actually start the commands going
if ( !r_skipBackEnd->integer ) {
// let it start on the new batch
if ( !glConfig.smpActive ) {
RB_ExecuteRenderCommands( cmdList->cmds );
} else {
GLimp_WakeRenderer( cmdList );
}
}
}
/*
====================
R_SyncRenderThread
Issue any pending commands and wait for them to complete.
After exiting, the render thread will have completed its work
and will remain idle and the main thread is free to issue
OpenGL calls until R_IssueRenderCommands is called.
====================
*/
void R_SyncRenderThread( void ) {
if ( !tr.registered ) {
return;
}
R_IssueRenderCommands( qfalse );
if ( !glConfig.smpActive ) {
return;
}
GLimp_FrontEndSleep();
}
/*
============
R_GetCommandBuffer
make sure there is enough command space, waiting on the
render thread if needed.
============
*/
void *R_GetCommandBuffer( int bytes ) {
renderCommandList_t *cmdList;
cmdList = &backEndData[tr.smpFrame]->commands;
// always leave room for the end of list command
if ( cmdList->used + bytes + 4 > MAX_RENDER_COMMANDS ) {
if ( bytes > MAX_RENDER_COMMANDS - 4 ) {
ri.Error( ERR_FATAL, "R_GetCommandBuffer: bad size %i", bytes );
}
// if we run out of room, just start dropping commands
return NULL;
}
cmdList->used += bytes;
return cmdList->cmds + cmdList->used - bytes;
}
/*
=============
R_AddDrawSurfCmd
=============
*/
void R_AddDrawSurfCmd( drawSurf_t *drawSurfs, int numDrawSurfs ) {
drawSurfsCommand_t *cmd;
cmd = R_GetCommandBuffer( sizeof( *cmd ) );
if ( !cmd ) {
return;
}
cmd->commandId = RC_DRAW_SURFS;
cmd->drawSurfs = drawSurfs;
cmd->numDrawSurfs = numDrawSurfs;
cmd->refdef = tr.refdef;
cmd->viewParms = tr.viewParms;
}
/*
=============
RE_SetColor
Passing NULL will set the color to white
=============
*/
void RE_SetColor( const float *rgba ) {
setColorCommand_t *cmd;
if ( !tr.registered ) {
return;
}
cmd = R_GetCommandBuffer( sizeof( *cmd ) );
if ( !cmd ) {
return;
}
cmd->commandId = RC_SET_COLOR;
if ( !rgba ) {
static float colorWhite[4] = { 1, 1, 1, 1 };
rgba = colorWhite;
}
cmd->color[0] = rgba[0];
cmd->color[1] = rgba[1];
cmd->color[2] = rgba[2];
cmd->color[3] = rgba[3];
}
/*
=============
RE_StretchPic
=============
*/
void RE_StretchPic ( float x, float y, float w, float h,
float s1, float t1, float s2, float t2, qhandle_t hShader ) {
stretchPicCommand_t *cmd;
if (!tr.registered) {
return;
}
cmd = R_GetCommandBuffer( sizeof( *cmd ) );
if ( !cmd ) {
return;
}
cmd->commandId = RC_STRETCH_PIC;
cmd->shader = R_GetShaderByHandle( hShader );
cmd->x = x;
cmd->y = y;
cmd->w = w;
cmd->h = h;
cmd->s1 = s1;
cmd->t1 = t1;
cmd->s2 = s2;
cmd->t2 = t2;
}
/*
====================
RE_BeginFrame
If running in stereo, RE_BeginFrame will be called twice
for each RE_EndFrame
====================
*/
void RE_BeginFrame( stereoFrame_t stereoFrame ) {
drawBufferCommand_t *cmd;
if ( !tr.registered ) {
return;
}
glState.finishCalled = qfalse;
tr.frameCount++;
tr.frameSceneNum = 0;
//
// do overdraw measurement
//
if ( r_measureOverdraw->integer )
{
if ( glConfig.stencilBits < 4 )
{
ri.Printf( PRINT_ALL, "Warning: not enough stencil bits to measure overdraw: %d\n", glConfig.stencilBits );
ri.Cvar_Set( "r_measureOverdraw", "0" );
r_measureOverdraw->modified = qfalse;
}
else if ( r_shadows->integer == 2 )
{
ri.Printf( PRINT_ALL, "Warning: stencil shadows and overdraw measurement are mutually exclusive\n" );
ri.Cvar_Set( "r_measureOverdraw", "0" );
r_measureOverdraw->modified = qfalse;
}
else
{
R_SyncRenderThread();
qglEnable( GL_STENCIL_TEST );
qglStencilMask( ~0U );
qglClearStencil( 0U );
qglStencilFunc( GL_ALWAYS, 0U, ~0U );
qglStencilOp( GL_KEEP, GL_INCR, GL_INCR );
}
r_measureOverdraw->modified = qfalse;
}
else
{
// this is only reached if it was on and is now off
if ( r_measureOverdraw->modified ) {
R_SyncRenderThread();
qglDisable( GL_STENCIL_TEST );
}
r_measureOverdraw->modified = qfalse;
}
//
// texturemode stuff
//
if ( r_textureMode->modified ) {
R_SyncRenderThread();
GL_TextureMode( r_textureMode->string );
r_textureMode->modified = qfalse;
}
//
// gamma stuff
//
if ( r_gamma->modified ) {
r_gamma->modified = qfalse;
R_SyncRenderThread();
R_SetColorMappings();
}
// check for errors
if ( !r_ignoreGLErrors->integer ) {
int err;
R_SyncRenderThread();
if ( ( err = qglGetError() ) != GL_NO_ERROR ) {
ri.Error( ERR_FATAL, "RE_BeginFrame() - glGetError() failed (0x%x)!\n", err );
}
}
//
// draw buffer stuff
//
cmd = R_GetCommandBuffer( sizeof( *cmd ) );
if ( !cmd ) {
return;
}
cmd->commandId = RC_DRAW_BUFFER;
if ( glConfig.stereoEnabled ) {
if ( stereoFrame == STEREO_LEFT ) {
cmd->buffer = (int)GL_BACK_LEFT;
} else if ( stereoFrame == STEREO_RIGHT ) {
cmd->buffer = (int)GL_BACK_RIGHT;
} else {
ri.Error( ERR_FATAL, "RE_BeginFrame: Stereo is enabled, but stereoFrame was %i", stereoFrame );
}
} else {
if ( stereoFrame != STEREO_CENTER ) {
ri.Error( ERR_FATAL, "RE_BeginFrame: Stereo is disabled, but stereoFrame was %i", stereoFrame );
}
if ( !Q_stricmp( r_drawBuffer->string, "GL_FRONT" ) ) {
cmd->buffer = (int)GL_FRONT;
} else {
cmd->buffer = (int)GL_BACK;
}
}
}
/*
=============
RE_EndFrame
Returns the number of msec spent in the back end
=============
*/
void RE_EndFrame( int *frontEndMsec, int *backEndMsec ) {
swapBuffersCommand_t *cmd;
if ( !tr.registered ) {
return;
}
cmd = R_GetCommandBuffer( sizeof( *cmd ) );
if ( !cmd ) {
return;
}
cmd->commandId = RC_SWAP_BUFFERS;
R_IssueRenderCommands( qtrue );
// use the other buffers next frame, because another CPU
// may still be rendering into the current ones
R_ToggleSmpFrame();
if ( frontEndMsec ) {
*frontEndMsec = tr.frontEndMsec;
}
tr.frontEndMsec = 0;
if ( backEndMsec ) {
*backEndMsec = backEnd.pc.msec;
}
backEnd.pc.msec = 0;
}

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/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.
This file is part of Quake III Arena source code.
Quake III Arena source code is free software; you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
Quake III Arena source code is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Foobar; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
===========================================================================
*/
#include "tr_local.h"
/*
This file does all of the processing necessary to turn a raw grid of points
read from the map file into a srfGridMesh_t ready for rendering.
The level of detail solution is direction independent, based only on subdivided
distance from the true curve.
Only a single entry point:
srfGridMesh_t *R_SubdividePatchToGrid( int width, int height,
drawVert_t points[MAX_PATCH_SIZE*MAX_PATCH_SIZE] ) {
*/
/*
============
LerpDrawVert
============
*/
static void LerpDrawVert( drawVert_t *a, drawVert_t *b, drawVert_t *out ) {
out->xyz[0] = 0.5f * (a->xyz[0] + b->xyz[0]);
out->xyz[1] = 0.5f * (a->xyz[1] + b->xyz[1]);
out->xyz[2] = 0.5f * (a->xyz[2] + b->xyz[2]);
out->st[0] = 0.5f * (a->st[0] + b->st[0]);
out->st[1] = 0.5f * (a->st[1] + b->st[1]);
out->lightmap[0] = 0.5f * (a->lightmap[0] + b->lightmap[0]);
out->lightmap[1] = 0.5f * (a->lightmap[1] + b->lightmap[1]);
out->color[0] = (a->color[0] + b->color[0]) >> 1;
out->color[1] = (a->color[1] + b->color[1]) >> 1;
out->color[2] = (a->color[2] + b->color[2]) >> 1;
out->color[3] = (a->color[3] + b->color[3]) >> 1;
}
/*
============
Transpose
============
*/
static void Transpose( int width, int height, drawVert_t ctrl[MAX_GRID_SIZE][MAX_GRID_SIZE] ) {
int i, j;
drawVert_t temp;
if ( width > height ) {
for ( i = 0 ; i < height ; i++ ) {
for ( j = i + 1 ; j < width ; j++ ) {
if ( j < height ) {
// swap the value
temp = ctrl[j][i];
ctrl[j][i] = ctrl[i][j];
ctrl[i][j] = temp;
} else {
// just copy
ctrl[j][i] = ctrl[i][j];
}
}
}
} else {
for ( i = 0 ; i < width ; i++ ) {
for ( j = i + 1 ; j < height ; j++ ) {
if ( j < width ) {
// swap the value
temp = ctrl[i][j];
ctrl[i][j] = ctrl[j][i];
ctrl[j][i] = temp;
} else {
// just copy
ctrl[i][j] = ctrl[j][i];
}
}
}
}
}
/*
=================
MakeMeshNormals
Handles all the complicated wrapping and degenerate cases
=================
*/
static void MakeMeshNormals( int width, int height, drawVert_t ctrl[MAX_GRID_SIZE][MAX_GRID_SIZE] ) {
int i, j, k, dist;
vec3_t normal;
vec3_t sum;
int count;
vec3_t base;
vec3_t delta;
int x, y;
drawVert_t *dv;
vec3_t around[8], temp;
qboolean good[8];
qboolean wrapWidth, wrapHeight;
float len;
static int neighbors[8][2] = {
{0,1}, {1,1}, {1,0}, {1,-1}, {0,-1}, {-1,-1}, {-1,0}, {-1,1}
};
wrapWidth = qfalse;
for ( i = 0 ; i < height ; i++ ) {
VectorSubtract( ctrl[i][0].xyz, ctrl[i][width-1].xyz, delta );
len = VectorLengthSquared( delta );
if ( len > 1.0 ) {
break;
}
}
if ( i == height ) {
wrapWidth = qtrue;
}
wrapHeight = qfalse;
for ( i = 0 ; i < width ; i++ ) {
VectorSubtract( ctrl[0][i].xyz, ctrl[height-1][i].xyz, delta );
len = VectorLengthSquared( delta );
if ( len > 1.0 ) {
break;
}
}
if ( i == width) {
wrapHeight = qtrue;
}
for ( i = 0 ; i < width ; i++ ) {
for ( j = 0 ; j < height ; j++ ) {
count = 0;
dv = &ctrl[j][i];
VectorCopy( dv->xyz, base );
for ( k = 0 ; k < 8 ; k++ ) {
VectorClear( around[k] );
good[k] = qfalse;
for ( dist = 1 ; dist <= 3 ; dist++ ) {
x = i + neighbors[k][0] * dist;
y = j + neighbors[k][1] * dist;
if ( wrapWidth ) {
if ( x < 0 ) {
x = width - 1 + x;
} else if ( x >= width ) {
x = 1 + x - width;
}
}
if ( wrapHeight ) {
if ( y < 0 ) {
y = height - 1 + y;
} else if ( y >= height ) {
y = 1 + y - height;
}
}
if ( x < 0 || x >= width || y < 0 || y >= height ) {
break; // edge of patch
}
VectorSubtract( ctrl[y][x].xyz, base, temp );
if ( VectorNormalize2( temp, temp ) == 0 ) {
continue; // degenerate edge, get more dist
} else {
good[k] = qtrue;
VectorCopy( temp, around[k] );
break; // good edge
}
}
}
VectorClear( sum );
for ( k = 0 ; k < 8 ; k++ ) {
if ( !good[k] || !good[(k+1)&7] ) {
continue; // didn't get two points
}
CrossProduct( around[(k+1)&7], around[k], normal );
if ( VectorNormalize2( normal, normal ) == 0 ) {
continue;
}
VectorAdd( normal, sum, sum );
count++;
}
if ( count == 0 ) {
//printf("bad normal\n");
count = 1;
}
VectorNormalize2( sum, dv->normal );
}
}
}
/*
============
InvertCtrl
============
*/
static void InvertCtrl( int width, int height, drawVert_t ctrl[MAX_GRID_SIZE][MAX_GRID_SIZE] ) {
int i, j;
drawVert_t temp;
for ( i = 0 ; i < height ; i++ ) {
for ( j = 0 ; j < width/2 ; j++ ) {
temp = ctrl[i][j];
ctrl[i][j] = ctrl[i][width-1-j];
ctrl[i][width-1-j] = temp;
}
}
}
/*
=================
InvertErrorTable
=================
*/
static void InvertErrorTable( float errorTable[2][MAX_GRID_SIZE], int width, int height ) {
int i;
float copy[2][MAX_GRID_SIZE];
Com_Memcpy( copy, errorTable, sizeof( copy ) );
for ( i = 0 ; i < width ; i++ ) {
errorTable[1][i] = copy[0][i]; //[width-1-i];
}
for ( i = 0 ; i < height ; i++ ) {
errorTable[0][i] = copy[1][height-1-i];
}
}
/*
==================
PutPointsOnCurve
==================
*/
static void PutPointsOnCurve( drawVert_t ctrl[MAX_GRID_SIZE][MAX_GRID_SIZE],
int width, int height ) {
int i, j;
drawVert_t prev, next;
for ( i = 0 ; i < width ; i++ ) {
for ( j = 1 ; j < height ; j += 2 ) {
LerpDrawVert( &ctrl[j][i], &ctrl[j+1][i], &prev );
LerpDrawVert( &ctrl[j][i], &ctrl[j-1][i], &next );
LerpDrawVert( &prev, &next, &ctrl[j][i] );
}
}
for ( j = 0 ; j < height ; j++ ) {
for ( i = 1 ; i < width ; i += 2 ) {
LerpDrawVert( &ctrl[j][i], &ctrl[j][i+1], &prev );
LerpDrawVert( &ctrl[j][i], &ctrl[j][i-1], &next );
LerpDrawVert( &prev, &next, &ctrl[j][i] );
}
}
}
/*
=================
R_CreateSurfaceGridMesh
=================
*/
srfGridMesh_t *R_CreateSurfaceGridMesh(int width, int height,
drawVert_t ctrl[MAX_GRID_SIZE][MAX_GRID_SIZE], float errorTable[2][MAX_GRID_SIZE] ) {
int i, j, size;
drawVert_t *vert;
vec3_t tmpVec;
srfGridMesh_t *grid;
// copy the results out to a grid
size = (width * height - 1) * sizeof( drawVert_t ) + sizeof( *grid );
#ifdef PATCH_STITCHING
grid = /*ri.Hunk_Alloc*/ ri.Malloc( size );
Com_Memset(grid, 0, size);
grid->widthLodError = /*ri.Hunk_Alloc*/ ri.Malloc( width * 4 );
Com_Memcpy( grid->widthLodError, errorTable[0], width * 4 );
grid->heightLodError = /*ri.Hunk_Alloc*/ ri.Malloc( height * 4 );
Com_Memcpy( grid->heightLodError, errorTable[1], height * 4 );
#else
grid = ri.Hunk_Alloc( size );
Com_Memset(grid, 0, size);
grid->widthLodError = ri.Hunk_Alloc( width * 4 );
Com_Memcpy( grid->widthLodError, errorTable[0], width * 4 );
grid->heightLodError = ri.Hunk_Alloc( height * 4 );
Com_Memcpy( grid->heightLodError, errorTable[1], height * 4 );
#endif
grid->width = width;
grid->height = height;
grid->surfaceType = SF_GRID;
ClearBounds( grid->meshBounds[0], grid->meshBounds[1] );
for ( i = 0 ; i < width ; i++ ) {
for ( j = 0 ; j < height ; j++ ) {
vert = &grid->verts[j*width+i];
*vert = ctrl[j][i];
AddPointToBounds( vert->xyz, grid->meshBounds[0], grid->meshBounds[1] );
}
}
// compute local origin and bounds
VectorAdd( grid->meshBounds[0], grid->meshBounds[1], grid->localOrigin );
VectorScale( grid->localOrigin, 0.5f, grid->localOrigin );
VectorSubtract( grid->meshBounds[0], grid->localOrigin, tmpVec );
grid->meshRadius = VectorLength( tmpVec );
VectorCopy( grid->localOrigin, grid->lodOrigin );
grid->lodRadius = grid->meshRadius;
//
return grid;
}
/*
=================
R_FreeSurfaceGridMesh
=================
*/
void R_FreeSurfaceGridMesh( srfGridMesh_t *grid ) {
ri.Free(grid->widthLodError);
ri.Free(grid->heightLodError);
ri.Free(grid);
}
/*
=================
R_SubdividePatchToGrid
=================
*/
srfGridMesh_t *R_SubdividePatchToGrid( int width, int height,
drawVert_t points[MAX_PATCH_SIZE*MAX_PATCH_SIZE] ) {
int i, j, k, l;
drawVert_t prev, next, mid;
float len, maxLen;
int dir;
int t;
MAC_STATIC drawVert_t ctrl[MAX_GRID_SIZE][MAX_GRID_SIZE];
float errorTable[2][MAX_GRID_SIZE];
for ( i = 0 ; i < width ; i++ ) {
for ( j = 0 ; j < height ; j++ ) {
ctrl[j][i] = points[j*width+i];
}
}
for ( dir = 0 ; dir < 2 ; dir++ ) {
for ( j = 0 ; j < MAX_GRID_SIZE ; j++ ) {
errorTable[dir][j] = 0;
}
// horizontal subdivisions
for ( j = 0 ; j + 2 < width ; j += 2 ) {
// check subdivided midpoints against control points
// FIXME: also check midpoints of adjacent patches against the control points
// this would basically stitch all patches in the same LOD group together.
maxLen = 0;
for ( i = 0 ; i < height ; i++ ) {
vec3_t midxyz;
vec3_t midxyz2;
vec3_t dir;
vec3_t projected;
float d;
// calculate the point on the curve
for ( l = 0 ; l < 3 ; l++ ) {
midxyz[l] = (ctrl[i][j].xyz[l] + ctrl[i][j+1].xyz[l] * 2
+ ctrl[i][j+2].xyz[l] ) * 0.25f;
}
// see how far off the line it is
// using dist-from-line will not account for internal
// texture warping, but it gives a lot less polygons than
// dist-from-midpoint
VectorSubtract( midxyz, ctrl[i][j].xyz, midxyz );
VectorSubtract( ctrl[i][j+2].xyz, ctrl[i][j].xyz, dir );
VectorNormalize( dir );
d = DotProduct( midxyz, dir );
VectorScale( dir, d, projected );
VectorSubtract( midxyz, projected, midxyz2);
len = VectorLengthSquared( midxyz2 ); // we will do the sqrt later
if ( len > maxLen ) {
maxLen = len;
}
}
maxLen = sqrt(maxLen);
// if all the points are on the lines, remove the entire columns
if ( maxLen < 0.1f ) {
errorTable[dir][j+1] = 999;
continue;
}
// see if we want to insert subdivided columns
if ( width + 2 > MAX_GRID_SIZE ) {
errorTable[dir][j+1] = 1.0f/maxLen;
continue; // can't subdivide any more
}
if ( maxLen <= r_subdivisions->value ) {
errorTable[dir][j+1] = 1.0f/maxLen;
continue; // didn't need subdivision
}
errorTable[dir][j+2] = 1.0f/maxLen;
// insert two columns and replace the peak
width += 2;
for ( i = 0 ; i < height ; i++ ) {
LerpDrawVert( &ctrl[i][j], &ctrl[i][j+1], &prev );
LerpDrawVert( &ctrl[i][j+1], &ctrl[i][j+2], &next );
LerpDrawVert( &prev, &next, &mid );
for ( k = width - 1 ; k > j + 3 ; k-- ) {
ctrl[i][k] = ctrl[i][k-2];
}
ctrl[i][j + 1] = prev;
ctrl[i][j + 2] = mid;
ctrl[i][j + 3] = next;
}
// back up and recheck this set again, it may need more subdivision
j -= 2;
}
Transpose( width, height, ctrl );
t = width;
width = height;
height = t;
}
// put all the aproximating points on the curve
PutPointsOnCurve( ctrl, width, height );
// cull out any rows or columns that are colinear
for ( i = 1 ; i < width-1 ; i++ ) {
if ( errorTable[0][i] != 999 ) {
continue;
}
for ( j = i+1 ; j < width ; j++ ) {
for ( k = 0 ; k < height ; k++ ) {
ctrl[k][j-1] = ctrl[k][j];
}
errorTable[0][j-1] = errorTable[0][j];
}
width--;
}
for ( i = 1 ; i < height-1 ; i++ ) {
if ( errorTable[1][i] != 999 ) {
continue;
}
for ( j = i+1 ; j < height ; j++ ) {
for ( k = 0 ; k < width ; k++ ) {
ctrl[j-1][k] = ctrl[j][k];
}
errorTable[1][j-1] = errorTable[1][j];
}
height--;
}
#if 1
// flip for longest tristrips as an optimization
// the results should be visually identical with or
// without this step
if ( height > width ) {
Transpose( width, height, ctrl );
InvertErrorTable( errorTable, width, height );
t = width;
width = height;
height = t;
InvertCtrl( width, height, ctrl );
}
#endif
// calculate normals
MakeMeshNormals( width, height, ctrl );
return R_CreateSurfaceGridMesh( width, height, ctrl, errorTable );
}
/*
===============
R_GridInsertColumn
===============
*/
srfGridMesh_t *R_GridInsertColumn( srfGridMesh_t *grid, int column, int row, vec3_t point, float loderror ) {
int i, j;
int width, height, oldwidth;
MAC_STATIC drawVert_t ctrl[MAX_GRID_SIZE][MAX_GRID_SIZE];
float errorTable[2][MAX_GRID_SIZE];
float lodRadius;
vec3_t lodOrigin;
oldwidth = 0;
width = grid->width + 1;
if (width > MAX_GRID_SIZE)
return NULL;
height = grid->height;
for (i = 0; i < width; i++) {
if (i == column) {
//insert new column
for (j = 0; j < grid->height; j++) {
LerpDrawVert( &grid->verts[j * grid->width + i-1], &grid->verts[j * grid->width + i], &ctrl[j][i] );
if (j == row)
VectorCopy(point, ctrl[j][i].xyz);
}
errorTable[0][i] = loderror;
continue;
}
errorTable[0][i] = grid->widthLodError[oldwidth];
for (j = 0; j < grid->height; j++) {
ctrl[j][i] = grid->verts[j * grid->width + oldwidth];
}
oldwidth++;
}
for (j = 0; j < grid->height; j++) {
errorTable[1][j] = grid->heightLodError[j];
}
// put all the aproximating points on the curve
//PutPointsOnCurve( ctrl, width, height );
// calculate normals
MakeMeshNormals( width, height, ctrl );
VectorCopy(grid->lodOrigin, lodOrigin);
lodRadius = grid->lodRadius;
// free the old grid
R_FreeSurfaceGridMesh(grid);
// create a new grid
grid = R_CreateSurfaceGridMesh( width, height, ctrl, errorTable );
grid->lodRadius = lodRadius;
VectorCopy(lodOrigin, grid->lodOrigin);
return grid;
}
/*
===============
R_GridInsertRow
===============
*/
srfGridMesh_t *R_GridInsertRow( srfGridMesh_t *grid, int row, int column, vec3_t point, float loderror ) {
int i, j;
int width, height, oldheight;
MAC_STATIC drawVert_t ctrl[MAX_GRID_SIZE][MAX_GRID_SIZE];
float errorTable[2][MAX_GRID_SIZE];
float lodRadius;
vec3_t lodOrigin;
oldheight = 0;
width = grid->width;
height = grid->height + 1;
if (height > MAX_GRID_SIZE)
return NULL;
for (i = 0; i < height; i++) {
if (i == row) {
//insert new row
for (j = 0; j < grid->width; j++) {
LerpDrawVert( &grid->verts[(i-1) * grid->width + j], &grid->verts[i * grid->width + j], &ctrl[i][j] );
if (j == column)
VectorCopy(point, ctrl[i][j].xyz);
}
errorTable[1][i] = loderror;
continue;
}
errorTable[1][i] = grid->heightLodError[oldheight];
for (j = 0; j < grid->width; j++) {
ctrl[i][j] = grid->verts[oldheight * grid->width + j];
}
oldheight++;
}
for (j = 0; j < grid->width; j++) {
errorTable[0][j] = grid->widthLodError[j];
}
// put all the aproximating points on the curve
//PutPointsOnCurve( ctrl, width, height );
// calculate normals
MakeMeshNormals( width, height, ctrl );
VectorCopy(grid->lodOrigin, lodOrigin);
lodRadius = grid->lodRadius;
// free the old grid
R_FreeSurfaceGridMesh(grid);
// create a new grid
grid = R_CreateSurfaceGridMesh( width, height, ctrl, errorTable );
grid->lodRadius = lodRadius;
VectorCopy(lodOrigin, grid->lodOrigin);
return grid;
}

447
code/renderer/tr_flares.c Normal file
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@ -0,0 +1,447 @@
/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.
This file is part of Quake III Arena source code.
Quake III Arena source code is free software; you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
Quake III Arena source code is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Foobar; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
===========================================================================
*/
// tr_flares.c
#include "tr_local.h"
/*
=============================================================================
LIGHT FLARES
A light flare is an effect that takes place inside the eye when bright light
sources are visible. The size of the flare reletive to the screen is nearly
constant, irrespective of distance, but the intensity should be proportional to the
projected area of the light source.
A surface that has been flagged as having a light flare will calculate the depth
buffer value that it's midpoint should have when the surface is added.
After all opaque surfaces have been rendered, the depth buffer is read back for
each flare in view. If the point has not been obscured by a closer surface, the
flare should be drawn.
Surfaces that have a repeated texture should never be flagged as flaring, because
there will only be a single flare added at the midpoint of the polygon.
To prevent abrupt popping, the intensity of the flare is interpolated up and
down as it changes visibility. This involves scene to scene state, unlike almost
all other aspects of the renderer, and is complicated by the fact that a single
frame may have multiple scenes.
RB_RenderFlares() will be called once per view (twice in a mirrored scene, potentially
up to five or more times in a frame with 3D status bar icons).
=============================================================================
*/
// flare states maintain visibility over multiple frames for fading
// layers: view, mirror, menu
typedef struct flare_s {
struct flare_s *next; // for active chain
int addedFrame;
qboolean inPortal; // true if in a portal view of the scene
int frameSceneNum;
void *surface;
int fogNum;
int fadeTime;
qboolean visible; // state of last test
float drawIntensity; // may be non 0 even if !visible due to fading
int windowX, windowY;
float eyeZ;
vec3_t color;
} flare_t;
#define MAX_FLARES 128
flare_t r_flareStructs[MAX_FLARES];
flare_t *r_activeFlares, *r_inactiveFlares;
/*
==================
R_ClearFlares
==================
*/
void R_ClearFlares( void ) {
int i;
Com_Memset( r_flareStructs, 0, sizeof( r_flareStructs ) );
r_activeFlares = NULL;
r_inactiveFlares = NULL;
for ( i = 0 ; i < MAX_FLARES ; i++ ) {
r_flareStructs[i].next = r_inactiveFlares;
r_inactiveFlares = &r_flareStructs[i];
}
}
/*
==================
RB_AddFlare
This is called at surface tesselation time
==================
*/
void RB_AddFlare( void *surface, int fogNum, vec3_t point, vec3_t color, vec3_t normal ) {
int i;
flare_t *f, *oldest;
vec3_t local;
float d;
vec4_t eye, clip, normalized, window;
backEnd.pc.c_flareAdds++;
// if the point is off the screen, don't bother adding it
// calculate screen coordinates and depth
R_TransformModelToClip( point, backEnd.or.modelMatrix,
backEnd.viewParms.projectionMatrix, eye, clip );
// check to see if the point is completely off screen
for ( i = 0 ; i < 3 ; i++ ) {
if ( clip[i] >= clip[3] || clip[i] <= -clip[3] ) {
return;
}
}
R_TransformClipToWindow( clip, &backEnd.viewParms, normalized, window );
if ( window[0] < 0 || window[0] >= backEnd.viewParms.viewportWidth
|| window[1] < 0 || window[1] >= backEnd.viewParms.viewportHeight ) {
return; // shouldn't happen, since we check the clip[] above, except for FP rounding
}
// see if a flare with a matching surface, scene, and view exists
oldest = r_flareStructs;
for ( f = r_activeFlares ; f ; f = f->next ) {
if ( f->surface == surface && f->frameSceneNum == backEnd.viewParms.frameSceneNum
&& f->inPortal == backEnd.viewParms.isPortal ) {
break;
}
}
// allocate a new one
if (!f ) {
if ( !r_inactiveFlares ) {
// the list is completely full
return;
}
f = r_inactiveFlares;
r_inactiveFlares = r_inactiveFlares->next;
f->next = r_activeFlares;
r_activeFlares = f;
f->surface = surface;
f->frameSceneNum = backEnd.viewParms.frameSceneNum;
f->inPortal = backEnd.viewParms.isPortal;
f->addedFrame = -1;
}
if ( f->addedFrame != backEnd.viewParms.frameCount - 1 ) {
f->visible = qfalse;
f->fadeTime = backEnd.refdef.time - 2000;
}
f->addedFrame = backEnd.viewParms.frameCount;
f->fogNum = fogNum;
VectorCopy( color, f->color );
// fade the intensity of the flare down as the
// light surface turns away from the viewer
if ( normal ) {
VectorSubtract( backEnd.viewParms.or.origin, point, local );
VectorNormalizeFast( local );
d = DotProduct( local, normal );
VectorScale( f->color, d, f->color );
}
// save info needed to test
f->windowX = backEnd.viewParms.viewportX + window[0];
f->windowY = backEnd.viewParms.viewportY + window[1];
f->eyeZ = eye[2];
}
/*
==================
RB_AddDlightFlares
==================
*/
void RB_AddDlightFlares( void ) {
dlight_t *l;
int i, j, k;
fog_t *fog;
if ( !r_flares->integer ) {
return;
}
l = backEnd.refdef.dlights;
fog = tr.world->fogs;
for (i=0 ; i<backEnd.refdef.num_dlights ; i++, l++) {
// find which fog volume the light is in
for ( j = 1 ; j < tr.world->numfogs ; j++ ) {
fog = &tr.world->fogs[j];
for ( k = 0 ; k < 3 ; k++ ) {
if ( l->origin[k] < fog->bounds[0][k] || l->origin[k] > fog->bounds[1][k] ) {
break;
}
}
if ( k == 3 ) {
break;
}
}
if ( j == tr.world->numfogs ) {
j = 0;
}
RB_AddFlare( (void *)l, j, l->origin, l->color, NULL );
}
}
/*
===============================================================================
FLARE BACK END
===============================================================================
*/
/*
==================
RB_TestFlare
==================
*/
void RB_TestFlare( flare_t *f ) {
float depth;
qboolean visible;
float fade;
float screenZ;
backEnd.pc.c_flareTests++;
// doing a readpixels is as good as doing a glFinish(), so
// don't bother with another sync
glState.finishCalled = qfalse;
// read back the z buffer contents
qglReadPixels( f->windowX, f->windowY, 1, 1, GL_DEPTH_COMPONENT, GL_FLOAT, &depth );
screenZ = backEnd.viewParms.projectionMatrix[14] /
( ( 2*depth - 1 ) * backEnd.viewParms.projectionMatrix[11] - backEnd.viewParms.projectionMatrix[10] );
visible = ( -f->eyeZ - -screenZ ) < 24;
if ( visible ) {
if ( !f->visible ) {
f->visible = qtrue;
f->fadeTime = backEnd.refdef.time - 1;
}
fade = ( ( backEnd.refdef.time - f->fadeTime ) /1000.0f ) * r_flareFade->value;
} else {
if ( f->visible ) {
f->visible = qfalse;
f->fadeTime = backEnd.refdef.time - 1;
}
fade = 1.0f - ( ( backEnd.refdef.time - f->fadeTime ) / 1000.0f ) * r_flareFade->value;
}
if ( fade < 0 ) {
fade = 0;
}
if ( fade > 1 ) {
fade = 1;
}
f->drawIntensity = fade;
}
/*
==================
RB_RenderFlare
==================
*/
void RB_RenderFlare( flare_t *f ) {
float size;
vec3_t color;
int iColor[3];
backEnd.pc.c_flareRenders++;
VectorScale( f->color, f->drawIntensity*tr.identityLight, color );
iColor[0] = color[0] * 255;
iColor[1] = color[1] * 255;
iColor[2] = color[2] * 255;
size = backEnd.viewParms.viewportWidth * ( r_flareSize->value/640.0f + 8 / -f->eyeZ );
RB_BeginSurface( tr.flareShader, f->fogNum );
// FIXME: use quadstamp?
tess.xyz[tess.numVertexes][0] = f->windowX - size;
tess.xyz[tess.numVertexes][1] = f->windowY - size;
tess.texCoords[tess.numVertexes][0][0] = 0;
tess.texCoords[tess.numVertexes][0][1] = 0;
tess.vertexColors[tess.numVertexes][0] = iColor[0];
tess.vertexColors[tess.numVertexes][1] = iColor[1];
tess.vertexColors[tess.numVertexes][2] = iColor[2];
tess.vertexColors[tess.numVertexes][3] = 255;
tess.numVertexes++;
tess.xyz[tess.numVertexes][0] = f->windowX - size;
tess.xyz[tess.numVertexes][1] = f->windowY + size;
tess.texCoords[tess.numVertexes][0][0] = 0;
tess.texCoords[tess.numVertexes][0][1] = 1;
tess.vertexColors[tess.numVertexes][0] = iColor[0];
tess.vertexColors[tess.numVertexes][1] = iColor[1];
tess.vertexColors[tess.numVertexes][2] = iColor[2];
tess.vertexColors[tess.numVertexes][3] = 255;
tess.numVertexes++;
tess.xyz[tess.numVertexes][0] = f->windowX + size;
tess.xyz[tess.numVertexes][1] = f->windowY + size;
tess.texCoords[tess.numVertexes][0][0] = 1;
tess.texCoords[tess.numVertexes][0][1] = 1;
tess.vertexColors[tess.numVertexes][0] = iColor[0];
tess.vertexColors[tess.numVertexes][1] = iColor[1];
tess.vertexColors[tess.numVertexes][2] = iColor[2];
tess.vertexColors[tess.numVertexes][3] = 255;
tess.numVertexes++;
tess.xyz[tess.numVertexes][0] = f->windowX + size;
tess.xyz[tess.numVertexes][1] = f->windowY - size;
tess.texCoords[tess.numVertexes][0][0] = 1;
tess.texCoords[tess.numVertexes][0][1] = 0;
tess.vertexColors[tess.numVertexes][0] = iColor[0];
tess.vertexColors[tess.numVertexes][1] = iColor[1];
tess.vertexColors[tess.numVertexes][2] = iColor[2];
tess.vertexColors[tess.numVertexes][3] = 255;
tess.numVertexes++;
tess.indexes[tess.numIndexes++] = 0;
tess.indexes[tess.numIndexes++] = 1;
tess.indexes[tess.numIndexes++] = 2;
tess.indexes[tess.numIndexes++] = 0;
tess.indexes[tess.numIndexes++] = 2;
tess.indexes[tess.numIndexes++] = 3;
RB_EndSurface();
}
/*
==================
RB_RenderFlares
Because flares are simulating an occular effect, they should be drawn after
everything (all views) in the entire frame has been drawn.
Because of the way portals use the depth buffer to mark off areas, the
needed information would be lost after each view, so we are forced to draw
flares after each view.
The resulting artifact is that flares in mirrors or portals don't dim properly
when occluded by something in the main view, and portal flares that should
extend past the portal edge will be overwritten.
==================
*/
void RB_RenderFlares (void) {
flare_t *f;
flare_t **prev;
qboolean draw;
if ( !r_flares->integer ) {
return;
}
// RB_AddDlightFlares();
// perform z buffer readback on each flare in this view
draw = qfalse;
prev = &r_activeFlares;
while ( ( f = *prev ) != NULL ) {
// throw out any flares that weren't added last frame
if ( f->addedFrame < backEnd.viewParms.frameCount - 1 ) {
*prev = f->next;
f->next = r_inactiveFlares;
r_inactiveFlares = f;
continue;
}
// don't draw any here that aren't from this scene / portal
f->drawIntensity = 0;
if ( f->frameSceneNum == backEnd.viewParms.frameSceneNum
&& f->inPortal == backEnd.viewParms.isPortal ) {
RB_TestFlare( f );
if ( f->drawIntensity ) {
draw = qtrue;
} else {
// this flare has completely faded out, so remove it from the chain
*prev = f->next;
f->next = r_inactiveFlares;
r_inactiveFlares = f;
continue;
}
}
prev = &f->next;
}
if ( !draw ) {
return; // none visible
}
if ( backEnd.viewParms.isPortal ) {
qglDisable (GL_CLIP_PLANE0);
}
qglPushMatrix();
qglLoadIdentity();
qglMatrixMode( GL_PROJECTION );
qglPushMatrix();
qglLoadIdentity();
qglOrtho( backEnd.viewParms.viewportX, backEnd.viewParms.viewportX + backEnd.viewParms.viewportWidth,
backEnd.viewParms.viewportY, backEnd.viewParms.viewportY + backEnd.viewParms.viewportHeight,
-99999, 99999 );
for ( f = r_activeFlares ; f ; f = f->next ) {
if ( f->frameSceneNum == backEnd.viewParms.frameSceneNum
&& f->inPortal == backEnd.viewParms.isPortal
&& f->drawIntensity ) {
RB_RenderFlare( f );
}
}
qglPopMatrix();
qglMatrixMode( GL_MODELVIEW );
qglPopMatrix();
}

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/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.
This file is part of Quake III Arena source code.
Quake III Arena source code is free software; you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
Quake III Arena source code is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Foobar; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
===========================================================================
*/
// tr_font.c
//
//
// The font system uses FreeType 2.x to render TrueType fonts for use within the game.
// As of this writing ( Nov, 2000 ) Team Arena uses these fonts for all of the ui and
// about 90% of the cgame presentation. A few areas of the CGAME were left uses the old
// fonts since the code is shared with standard Q3A.
//
// If you include this font rendering code in a commercial product you MUST include the
// following somewhere with your product, see www.freetype.org for specifics or changes.
// The Freetype code also uses some hinting techniques that MIGHT infringe on patents
// held by apple so be aware of that also.
//
// As of Q3A 1.25+ and Team Arena, we are shipping the game with the font rendering code
// disabled. This removes any potential patent issues and it keeps us from having to
// distribute an actual TrueTrype font which is 1. expensive to do and 2. seems to require
// an act of god to accomplish.
//
// What we did was pre-render the fonts using FreeType ( which is why we leave the FreeType
// credit in the credits ) and then saved off the glyph data and then hand touched up the
// font bitmaps so they scale a bit better in GL.
//
// There are limitations in the way fonts are saved and reloaded in that it is based on
// point size and not name. So if you pre-render Helvetica in 18 point and Impact in 18 point
// you will end up with a single 18 point data file and image set. Typically you will want to
// choose 3 sizes to best approximate the scaling you will be doing in the ui scripting system
//
// In the UI Scripting code, a scale of 1.0 is equal to a 48 point font. In Team Arena, we
// use three or four scales, most of them exactly equaling the specific rendered size. We
// rendered three sizes in Team Arena, 12, 16, and 20.
//
// To generate new font data you need to go through the following steps.
// 1. delete the fontImage_x_xx.tga files and fontImage_xx.dat files from the fonts path.
// 2. in a ui script, specificy a font, smallFont, and bigFont keyword with font name and
// point size. the original TrueType fonts must exist in fonts at this point.
// 3. run the game, you should see things normally.
// 4. Exit the game and there will be three dat files and at least three tga files. The
// tga's are in 256x256 pages so if it takes three images to render a 24 point font you
// will end up with fontImage_0_24.tga through fontImage_2_24.tga
// 5. You will need to flip the tga's in Photoshop as the tga output code writes them upside
// down.
// 6. In future runs of the game, the system looks for these images and data files when a s
// specific point sized font is rendered and loads them for use.
// 7. Because of the original beta nature of the FreeType code you will probably want to hand
// touch the font bitmaps.
//
// Currently a define in the project turns on or off the FreeType code which is currently
// defined out. To pre-render new fonts you need enable the define ( BUILD_FREETYPE ) and
// uncheck the exclude from build check box in the FreeType2 area of the Renderer project.
#include "tr_local.h"
#include "../qcommon/qcommon.h"
#ifdef BUILD_FREETYPE
#include "../ft2/fterrors.h"
#include "../ft2/ftsystem.h"
#include "../ft2/ftimage.h"
#include "../ft2/freetype.h"
#include "../ft2/ftoutln.h"
#define _FLOOR(x) ((x) & -64)
#define _CEIL(x) (((x)+63) & -64)
#define _TRUNC(x) ((x) >> 6)
FT_Library ftLibrary = NULL;
#endif
#define MAX_FONTS 6
static int registeredFontCount = 0;
static fontInfo_t registeredFont[MAX_FONTS];
#ifdef BUILD_FREETYPE
void R_GetGlyphInfo(FT_GlyphSlot glyph, int *left, int *right, int *width, int *top, int *bottom, int *height, int *pitch) {
*left = _FLOOR( glyph->metrics.horiBearingX );
*right = _CEIL( glyph->metrics.horiBearingX + glyph->metrics.width );
*width = _TRUNC(*right - *left);
*top = _CEIL( glyph->metrics.horiBearingY );
*bottom = _FLOOR( glyph->metrics.horiBearingY - glyph->metrics.height );
*height = _TRUNC( *top - *bottom );
*pitch = ( qtrue ? (*width+3) & -4 : (*width+7) >> 3 );
}
FT_Bitmap *R_RenderGlyph(FT_GlyphSlot glyph, glyphInfo_t* glyphOut) {
FT_Bitmap *bit2;
int left, right, width, top, bottom, height, pitch, size;
R_GetGlyphInfo(glyph, &left, &right, &width, &top, &bottom, &height, &pitch);
if ( glyph->format == ft_glyph_format_outline ) {
size = pitch*height;
bit2 = Z_Malloc(sizeof(FT_Bitmap));
bit2->width = width;
bit2->rows = height;
bit2->pitch = pitch;
bit2->pixel_mode = ft_pixel_mode_grays;
//bit2->pixel_mode = ft_pixel_mode_mono;
bit2->buffer = Z_Malloc(pitch*height);
bit2->num_grays = 256;
Com_Memset( bit2->buffer, 0, size );
FT_Outline_Translate( &glyph->outline, -left, -bottom );
FT_Outline_Get_Bitmap( ftLibrary, &glyph->outline, bit2 );
glyphOut->height = height;
glyphOut->pitch = pitch;
glyphOut->top = (glyph->metrics.horiBearingY >> 6) + 1;
glyphOut->bottom = bottom;
return bit2;
}
else {
ri.Printf(PRINT_ALL, "Non-outline fonts are not supported\n");
}
return NULL;
}
void WriteTGA (char *filename, byte *data, int width, int height) {
byte *buffer;
int i, c;
buffer = Z_Malloc(width*height*4 + 18);
Com_Memset (buffer, 0, 18);
buffer[2] = 2; // uncompressed type
buffer[12] = width&255;
buffer[13] = width>>8;
buffer[14] = height&255;
buffer[15] = height>>8;
buffer[16] = 32; // pixel size
// swap rgb to bgr
c = 18 + width * height * 4;
for (i=18 ; i<c ; i+=4)
{
buffer[i] = data[i-18+2]; // blue
buffer[i+1] = data[i-18+1]; // green
buffer[i+2] = data[i-18+0]; // red
buffer[i+3] = data[i-18+3]; // alpha
}
ri.FS_WriteFile(filename, buffer, c);
//f = fopen (filename, "wb");
//fwrite (buffer, 1, c, f);
//fclose (f);
Z_Free (buffer);
}
static glyphInfo_t *RE_ConstructGlyphInfo(unsigned char *imageOut, int *xOut, int *yOut, int *maxHeight, FT_Face face, const unsigned char c, qboolean calcHeight) {
int i;
static glyphInfo_t glyph;
unsigned char *src, *dst;
float scaled_width, scaled_height;
FT_Bitmap *bitmap = NULL;
Com_Memset(&glyph, 0, sizeof(glyphInfo_t));
// make sure everything is here
if (face != NULL) {
FT_Load_Glyph(face, FT_Get_Char_Index( face, c), FT_LOAD_DEFAULT );
bitmap = R_RenderGlyph(face->glyph, &glyph);
if (bitmap) {
glyph.xSkip = (face->glyph->metrics.horiAdvance >> 6) + 1;
} else {
return &glyph;
}
if (glyph.height > *maxHeight) {
*maxHeight = glyph.height;
}
if (calcHeight) {
Z_Free(bitmap->buffer);
Z_Free(bitmap);
return &glyph;
}
/*
// need to convert to power of 2 sizes so we do not get
// any scaling from the gl upload
for (scaled_width = 1 ; scaled_width < glyph.pitch ; scaled_width<<=1)
;
for (scaled_height = 1 ; scaled_height < glyph.height ; scaled_height<<=1)
;
*/
scaled_width = glyph.pitch;
scaled_height = glyph.height;
// we need to make sure we fit
if (*xOut + scaled_width + 1 >= 255) {
if (*yOut + *maxHeight + 1 >= 255) {
*yOut = -1;
*xOut = -1;
Z_Free(bitmap->buffer);
Z_Free(bitmap);
return &glyph;
} else {
*xOut = 0;
*yOut += *maxHeight + 1;
}
} else if (*yOut + *maxHeight + 1 >= 255) {
*yOut = -1;
*xOut = -1;
Z_Free(bitmap->buffer);
Z_Free(bitmap);
return &glyph;
}
src = bitmap->buffer;
dst = imageOut + (*yOut * 256) + *xOut;
if (bitmap->pixel_mode == ft_pixel_mode_mono) {
for (i = 0; i < glyph.height; i++) {
int j;
unsigned char *_src = src;
unsigned char *_dst = dst;
unsigned char mask = 0x80;
unsigned char val = *_src;
for (j = 0; j < glyph.pitch; j++) {
if (mask == 0x80) {
val = *_src++;
}
if (val & mask) {
*_dst = 0xff;
}
mask >>= 1;
if ( mask == 0 ) {
mask = 0x80;
}
_dst++;
}
src += glyph.pitch;
dst += 256;
}
} else {
for (i = 0; i < glyph.height; i++) {
Com_Memcpy(dst, src, glyph.pitch);
src += glyph.pitch;
dst += 256;
}
}
// we now have an 8 bit per pixel grey scale bitmap
// that is width wide and pf->ftSize->metrics.y_ppem tall
glyph.imageHeight = scaled_height;
glyph.imageWidth = scaled_width;
glyph.s = (float)*xOut / 256;
glyph.t = (float)*yOut / 256;
glyph.s2 = glyph.s + (float)scaled_width / 256;
glyph.t2 = glyph.t + (float)scaled_height / 256;
*xOut += scaled_width + 1;
}
Z_Free(bitmap->buffer);
Z_Free(bitmap);
return &glyph;
}
#endif
static int fdOffset;
static byte *fdFile;
int readInt() {
int i = fdFile[fdOffset]+(fdFile[fdOffset+1]<<8)+(fdFile[fdOffset+2]<<16)+(fdFile[fdOffset+3]<<24);
fdOffset += 4;
return i;
}
typedef union {
byte fred[4];
float ffred;
} poor;
float readFloat() {
poor me;
#if idppc
me.fred[0] = fdFile[fdOffset+3];
me.fred[1] = fdFile[fdOffset+2];
me.fred[2] = fdFile[fdOffset+1];
me.fred[3] = fdFile[fdOffset+0];
#else
me.fred[0] = fdFile[fdOffset+0];
me.fred[1] = fdFile[fdOffset+1];
me.fred[2] = fdFile[fdOffset+2];
me.fred[3] = fdFile[fdOffset+3];
#endif
fdOffset += 4;
return me.ffred;
}
void RE_RegisterFont(const char *fontName, int pointSize, fontInfo_t *font) {
#ifdef BUILD_FREETYPE
FT_Face face;
int j, k, xOut, yOut, lastStart, imageNumber;
int scaledSize, newSize, maxHeight, left, satLevels;
unsigned char *out, *imageBuff;
glyphInfo_t *glyph;
image_t *image;
qhandle_t h;
float max;
#endif
void *faceData;
int i, len;
char name[1024];
float dpi = 72; //
float glyphScale = 72.0f / dpi; // change the scale to be relative to 1 based on 72 dpi ( so dpi of 144 means a scale of .5 )
if (pointSize <= 0) {
pointSize = 12;
}
// we also need to adjust the scale based on point size relative to 48 points as the ui scaling is based on a 48 point font
glyphScale *= 48.0f / pointSize;
// make sure the render thread is stopped
R_SyncRenderThread();
if (registeredFontCount >= MAX_FONTS) {
ri.Printf(PRINT_ALL, "RE_RegisterFont: Too many fonts registered already.\n");
return;
}
Com_sprintf(name, sizeof(name), "fonts/fontImage_%i.dat",pointSize);
for (i = 0; i < registeredFontCount; i++) {
if (Q_stricmp(name, registeredFont[i].name) == 0) {
Com_Memcpy(font, &registeredFont[i], sizeof(fontInfo_t));
return;
}
}
len = ri.FS_ReadFile(name, NULL);
if (len == sizeof(fontInfo_t)) {
ri.FS_ReadFile(name, &faceData);
fdOffset = 0;
fdFile = faceData;
for(i=0; i<GLYPHS_PER_FONT; i++) {
font->glyphs[i].height = readInt();
font->glyphs[i].top = readInt();
font->glyphs[i].bottom = readInt();
font->glyphs[i].pitch = readInt();
font->glyphs[i].xSkip = readInt();
font->glyphs[i].imageWidth = readInt();
font->glyphs[i].imageHeight = readInt();
font->glyphs[i].s = readFloat();
font->glyphs[i].t = readFloat();
font->glyphs[i].s2 = readFloat();
font->glyphs[i].t2 = readFloat();
font->glyphs[i].glyph = readInt();
Com_Memcpy(font->glyphs[i].shaderName, &fdFile[fdOffset], 32);
fdOffset += 32;
}
font->glyphScale = readFloat();
Com_Memcpy(font->name, &fdFile[fdOffset], MAX_QPATH);
// Com_Memcpy(font, faceData, sizeof(fontInfo_t));
Q_strncpyz(font->name, name, sizeof(font->name));
for (i = GLYPH_START; i < GLYPH_END; i++) {
font->glyphs[i].glyph = RE_RegisterShaderNoMip(font->glyphs[i].shaderName);
}
Com_Memcpy(&registeredFont[registeredFontCount++], font, sizeof(fontInfo_t));
return;
}
#ifndef BUILD_FREETYPE
ri.Printf(PRINT_ALL, "RE_RegisterFont: FreeType code not available\n");
#else
if (ftLibrary == NULL) {
ri.Printf(PRINT_ALL, "RE_RegisterFont: FreeType not initialized.\n");
return;
}
len = ri.FS_ReadFile(fontName, &faceData);
if (len <= 0) {
ri.Printf(PRINT_ALL, "RE_RegisterFont: Unable to read font file\n");
return;
}
// allocate on the stack first in case we fail
if (FT_New_Memory_Face( ftLibrary, faceData, len, 0, &face )) {
ri.Printf(PRINT_ALL, "RE_RegisterFont: FreeType2, unable to allocate new face.\n");
return;
}
if (FT_Set_Char_Size( face, pointSize << 6, pointSize << 6, dpi, dpi)) {
ri.Printf(PRINT_ALL, "RE_RegisterFont: FreeType2, Unable to set face char size.\n");
return;
}
//*font = &registeredFonts[registeredFontCount++];
// make a 256x256 image buffer, once it is full, register it, clean it and keep going
// until all glyphs are rendered
out = Z_Malloc(1024*1024);
if (out == NULL) {
ri.Printf(PRINT_ALL, "RE_RegisterFont: Z_Malloc failure during output image creation.\n");
return;
}
Com_Memset(out, 0, 1024*1024);
maxHeight = 0;
for (i = GLYPH_START; i < GLYPH_END; i++) {
glyph = RE_ConstructGlyphInfo(out, &xOut, &yOut, &maxHeight, face, (unsigned char)i, qtrue);
}
xOut = 0;
yOut = 0;
i = GLYPH_START;
lastStart = i;
imageNumber = 0;
while ( i <= GLYPH_END ) {
glyph = RE_ConstructGlyphInfo(out, &xOut, &yOut, &maxHeight, face, (unsigned char)i, qfalse);
if (xOut == -1 || yOut == -1 || i == GLYPH_END) {
// ran out of room
// we need to create an image from the bitmap, set all the handles in the glyphs to this point
//
scaledSize = 256*256;
newSize = scaledSize * 4;
imageBuff = Z_Malloc(newSize);
left = 0;
max = 0;
satLevels = 255;
for ( k = 0; k < (scaledSize) ; k++ ) {
if (max < out[k]) {
max = out[k];
}
}
if (max > 0) {
max = 255/max;
}
for ( k = 0; k < (scaledSize) ; k++ ) {
imageBuff[left++] = 255;
imageBuff[left++] = 255;
imageBuff[left++] = 255;
imageBuff[left++] = ((float)out[k] * max);
}
Com_sprintf (name, sizeof(name), "fonts/fontImage_%i_%i.tga", imageNumber++, pointSize);
if (r_saveFontData->integer) {
WriteTGA(name, imageBuff, 256, 256);
}
//Com_sprintf (name, sizeof(name), "fonts/fontImage_%i_%i", imageNumber++, pointSize);
image = R_CreateImage(name, imageBuff, 256, 256, qfalse, qfalse, GL_CLAMP);
h = RE_RegisterShaderFromImage(name, LIGHTMAP_2D, image, qfalse);
for (j = lastStart; j < i; j++) {
font->glyphs[j].glyph = h;
Q_strncpyz(font->glyphs[j].shaderName, name, sizeof(font->glyphs[j].shaderName));
}
lastStart = i;
Com_Memset(out, 0, 1024*1024);
xOut = 0;
yOut = 0;
Z_Free(imageBuff);
i++;
} else {
Com_Memcpy(&font->glyphs[i], glyph, sizeof(glyphInfo_t));
i++;
}
}
registeredFont[registeredFontCount].glyphScale = glyphScale;
font->glyphScale = glyphScale;
Com_Memcpy(&registeredFont[registeredFontCount++], font, sizeof(fontInfo_t));
if (r_saveFontData->integer) {
ri.FS_WriteFile(va("fonts/fontImage_%i.dat", pointSize), font, sizeof(fontInfo_t));
}
Z_Free(out);
ri.FS_FreeFile(faceData);
#endif
}
void R_InitFreeType() {
#ifdef BUILD_FREETYPE
if (FT_Init_FreeType( &ftLibrary )) {
ri.Printf(PRINT_ALL, "R_InitFreeType: Unable to initialize FreeType.\n");
}
#endif
registeredFontCount = 0;
}
void R_DoneFreeType() {
#ifdef BUILD_FREETYPE
if (ftLibrary) {
FT_Done_FreeType( ftLibrary );
ftLibrary = NULL;
}
#endif
registeredFontCount = 0;
}

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/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.
This file is part of Quake III Arena source code.
Quake III Arena source code is free software; you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
Quake III Arena source code is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Foobar; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
===========================================================================
*/
// tr_light.c
#include "tr_local.h"
#define DLIGHT_AT_RADIUS 16
// at the edge of a dlight's influence, this amount of light will be added
#define DLIGHT_MINIMUM_RADIUS 16
// never calculate a range less than this to prevent huge light numbers
/*
===============
R_TransformDlights
Transforms the origins of an array of dlights.
Used by both the front end (for DlightBmodel) and
the back end (before doing the lighting calculation)
===============
*/
void R_TransformDlights( int count, dlight_t *dl, orientationr_t *or) {
int i;
vec3_t temp;
for ( i = 0 ; i < count ; i++, dl++ ) {
VectorSubtract( dl->origin, or->origin, temp );
dl->transformed[0] = DotProduct( temp, or->axis[0] );
dl->transformed[1] = DotProduct( temp, or->axis[1] );
dl->transformed[2] = DotProduct( temp, or->axis[2] );
}
}
/*
=============
R_DlightBmodel
Determine which dynamic lights may effect this bmodel
=============
*/
void R_DlightBmodel( bmodel_t *bmodel ) {
int i, j;
dlight_t *dl;
int mask;
msurface_t *surf;
// transform all the lights
R_TransformDlights( tr.refdef.num_dlights, tr.refdef.dlights, &tr.or );
mask = 0;
for ( i=0 ; i<tr.refdef.num_dlights ; i++ ) {
dl = &tr.refdef.dlights[i];
// see if the point is close enough to the bounds to matter
for ( j = 0 ; j < 3 ; j++ ) {
if ( dl->transformed[j] - bmodel->bounds[1][j] > dl->radius ) {
break;
}
if ( bmodel->bounds[0][j] - dl->transformed[j] > dl->radius ) {
break;
}
}
if ( j < 3 ) {
continue;
}
// we need to check this light
mask |= 1 << i;
}
tr.currentEntity->needDlights = (mask != 0);
// set the dlight bits in all the surfaces
for ( i = 0 ; i < bmodel->numSurfaces ; i++ ) {
surf = bmodel->firstSurface + i;
if ( *surf->data == SF_FACE ) {
((srfSurfaceFace_t *)surf->data)->dlightBits[ tr.smpFrame ] = mask;
} else if ( *surf->data == SF_GRID ) {
((srfGridMesh_t *)surf->data)->dlightBits[ tr.smpFrame ] = mask;
} else if ( *surf->data == SF_TRIANGLES ) {
((srfTriangles_t *)surf->data)->dlightBits[ tr.smpFrame ] = mask;
}
}
}
/*
=============================================================================
LIGHT SAMPLING
=============================================================================
*/
extern cvar_t *r_ambientScale;
extern cvar_t *r_directedScale;
extern cvar_t *r_debugLight;
/*
=================
R_SetupEntityLightingGrid
=================
*/
static void R_SetupEntityLightingGrid( trRefEntity_t *ent ) {
vec3_t lightOrigin;
int pos[3];
int i, j;
byte *gridData;
float frac[3];
int gridStep[3];
vec3_t direction;
float totalFactor;
if ( ent->e.renderfx & RF_LIGHTING_ORIGIN ) {
// seperate lightOrigins are needed so an object that is
// sinking into the ground can still be lit, and so
// multi-part models can be lit identically
VectorCopy( ent->e.lightingOrigin, lightOrigin );
} else {
VectorCopy( ent->e.origin, lightOrigin );
}
VectorSubtract( lightOrigin, tr.world->lightGridOrigin, lightOrigin );
for ( i = 0 ; i < 3 ; i++ ) {
float v;
v = lightOrigin[i]*tr.world->lightGridInverseSize[i];
pos[i] = floor( v );
frac[i] = v - pos[i];
if ( pos[i] < 0 ) {
pos[i] = 0;
} else if ( pos[i] >= tr.world->lightGridBounds[i] - 1 ) {
pos[i] = tr.world->lightGridBounds[i] - 1;
}
}
VectorClear( ent->ambientLight );
VectorClear( ent->directedLight );
VectorClear( direction );
assert( tr.world->lightGridData ); // bk010103 - NULL with -nolight maps
// trilerp the light value
gridStep[0] = 8;
gridStep[1] = 8 * tr.world->lightGridBounds[0];
gridStep[2] = 8 * tr.world->lightGridBounds[0] * tr.world->lightGridBounds[1];
gridData = tr.world->lightGridData + pos[0] * gridStep[0]
+ pos[1] * gridStep[1] + pos[2] * gridStep[2];
totalFactor = 0;
for ( i = 0 ; i < 8 ; i++ ) {
float factor;
byte *data;
int lat, lng;
vec3_t normal;
#if idppc
float d0, d1, d2, d3, d4, d5;
#endif
factor = 1.0;
data = gridData;
for ( j = 0 ; j < 3 ; j++ ) {
if ( i & (1<<j) ) {
factor *= frac[j];
data += gridStep[j];
} else {
factor *= (1.0f - frac[j]);
}
}
if ( !(data[0]+data[1]+data[2]) ) {
continue; // ignore samples in walls
}
totalFactor += factor;
#if idppc
d0 = data[0]; d1 = data[1]; d2 = data[2];
d3 = data[3]; d4 = data[4]; d5 = data[5];
ent->ambientLight[0] += factor * d0;
ent->ambientLight[1] += factor * d1;
ent->ambientLight[2] += factor * d2;
ent->directedLight[0] += factor * d3;
ent->directedLight[1] += factor * d4;
ent->directedLight[2] += factor * d5;
#else
ent->ambientLight[0] += factor * data[0];
ent->ambientLight[1] += factor * data[1];
ent->ambientLight[2] += factor * data[2];
ent->directedLight[0] += factor * data[3];
ent->directedLight[1] += factor * data[4];
ent->directedLight[2] += factor * data[5];
#endif
lat = data[7];
lng = data[6];
lat *= (FUNCTABLE_SIZE/256);
lng *= (FUNCTABLE_SIZE/256);
// decode X as cos( lat ) * sin( long )
// decode Y as sin( lat ) * sin( long )
// decode Z as cos( long )
normal[0] = tr.sinTable[(lat+(FUNCTABLE_SIZE/4))&FUNCTABLE_MASK] * tr.sinTable[lng];
normal[1] = tr.sinTable[lat] * tr.sinTable[lng];
normal[2] = tr.sinTable[(lng+(FUNCTABLE_SIZE/4))&FUNCTABLE_MASK];
VectorMA( direction, factor, normal, direction );
}
if ( totalFactor > 0 && totalFactor < 0.99 ) {
totalFactor = 1.0f / totalFactor;
VectorScale( ent->ambientLight, totalFactor, ent->ambientLight );
VectorScale( ent->directedLight, totalFactor, ent->directedLight );
}
VectorScale( ent->ambientLight, r_ambientScale->value, ent->ambientLight );
VectorScale( ent->directedLight, r_directedScale->value, ent->directedLight );
VectorNormalize2( direction, ent->lightDir );
}
/*
===============
LogLight
===============
*/
static void LogLight( trRefEntity_t *ent ) {
int max1, max2;
if ( !(ent->e.renderfx & RF_FIRST_PERSON ) ) {
return;
}
max1 = ent->ambientLight[0];
if ( ent->ambientLight[1] > max1 ) {
max1 = ent->ambientLight[1];
} else if ( ent->ambientLight[2] > max1 ) {
max1 = ent->ambientLight[2];
}
max2 = ent->directedLight[0];
if ( ent->directedLight[1] > max2 ) {
max2 = ent->directedLight[1];
} else if ( ent->directedLight[2] > max2 ) {
max2 = ent->directedLight[2];
}
ri.Printf( PRINT_ALL, "amb:%i dir:%i\n", max1, max2 );
}
/*
=================
R_SetupEntityLighting
Calculates all the lighting values that will be used
by the Calc_* functions
=================
*/
void R_SetupEntityLighting( const trRefdef_t *refdef, trRefEntity_t *ent ) {
int i;
dlight_t *dl;
float power;
vec3_t dir;
float d;
vec3_t lightDir;
vec3_t lightOrigin;
// lighting calculations
if ( ent->lightingCalculated ) {
return;
}
ent->lightingCalculated = qtrue;
//
// trace a sample point down to find ambient light
//
if ( ent->e.renderfx & RF_LIGHTING_ORIGIN ) {
// seperate lightOrigins are needed so an object that is
// sinking into the ground can still be lit, and so
// multi-part models can be lit identically
VectorCopy( ent->e.lightingOrigin, lightOrigin );
} else {
VectorCopy( ent->e.origin, lightOrigin );
}
// if NOWORLDMODEL, only use dynamic lights (menu system, etc)
if ( !(refdef->rdflags & RDF_NOWORLDMODEL )
&& tr.world->lightGridData ) {
R_SetupEntityLightingGrid( ent );
} else {
ent->ambientLight[0] = ent->ambientLight[1] =
ent->ambientLight[2] = tr.identityLight * 150;
ent->directedLight[0] = ent->directedLight[1] =
ent->directedLight[2] = tr.identityLight * 150;
VectorCopy( tr.sunDirection, ent->lightDir );
}
// bonus items and view weapons have a fixed minimum add
if ( 1 /* ent->e.renderfx & RF_MINLIGHT */ ) {
// give everything a minimum light add
ent->ambientLight[0] += tr.identityLight * 32;
ent->ambientLight[1] += tr.identityLight * 32;
ent->ambientLight[2] += tr.identityLight * 32;
}
//
// modify the light by dynamic lights
//
d = VectorLength( ent->directedLight );
VectorScale( ent->lightDir, d, lightDir );
for ( i = 0 ; i < refdef->num_dlights ; i++ ) {
dl = &refdef->dlights[i];
VectorSubtract( dl->origin, lightOrigin, dir );
d = VectorNormalize( dir );
power = DLIGHT_AT_RADIUS * ( dl->radius * dl->radius );
if ( d < DLIGHT_MINIMUM_RADIUS ) {
d = DLIGHT_MINIMUM_RADIUS;
}
d = power / ( d * d );
VectorMA( ent->directedLight, d, dl->color, ent->directedLight );
VectorMA( lightDir, d, dir, lightDir );
}
// clamp ambient
for ( i = 0 ; i < 3 ; i++ ) {
if ( ent->ambientLight[i] > tr.identityLightByte ) {
ent->ambientLight[i] = tr.identityLightByte;
}
}
if ( r_debugLight->integer ) {
LogLight( ent );
}
// save out the byte packet version
((byte *)&ent->ambientLightInt)[0] = myftol( ent->ambientLight[0] );
((byte *)&ent->ambientLightInt)[1] = myftol( ent->ambientLight[1] );
((byte *)&ent->ambientLightInt)[2] = myftol( ent->ambientLight[2] );
((byte *)&ent->ambientLightInt)[3] = 0xff;
// transform the direction to local space
VectorNormalize( lightDir );
ent->lightDir[0] = DotProduct( lightDir, ent->e.axis[0] );
ent->lightDir[1] = DotProduct( lightDir, ent->e.axis[1] );
ent->lightDir[2] = DotProduct( lightDir, ent->e.axis[2] );
}
/*
=================
R_LightForPoint
=================
*/
int R_LightForPoint( vec3_t point, vec3_t ambientLight, vec3_t directedLight, vec3_t lightDir )
{
trRefEntity_t ent;
// bk010103 - this segfaults with -nolight maps
if ( tr.world->lightGridData == NULL )
return qfalse;
Com_Memset(&ent, 0, sizeof(ent));
VectorCopy( point, ent.e.origin );
R_SetupEntityLightingGrid( &ent );
VectorCopy(ent.ambientLight, ambientLight);
VectorCopy(ent.directedLight, directedLight);
VectorCopy(ent.lightDir, lightDir);
return qtrue;
}

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/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.
This file is part of Quake III Arena source code.
Quake III Arena source code is free software; you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
Quake III Arena source code is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Foobar; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
===========================================================================
*/
// tr_marks.c -- polygon projection on the world polygons
#include "tr_local.h"
//#include "assert.h"
#define MAX_VERTS_ON_POLY 64
#define MARKER_OFFSET 0 // 1
/*
=============
R_ChopPolyBehindPlane
Out must have space for two more vertexes than in
=============
*/
#define SIDE_FRONT 0
#define SIDE_BACK 1
#define SIDE_ON 2
static void R_ChopPolyBehindPlane( int numInPoints, vec3_t inPoints[MAX_VERTS_ON_POLY],
int *numOutPoints, vec3_t outPoints[MAX_VERTS_ON_POLY],
vec3_t normal, vec_t dist, vec_t epsilon) {
float dists[MAX_VERTS_ON_POLY+4];
int sides[MAX_VERTS_ON_POLY+4];
int counts[3];
float dot;
int i, j;
float *p1, *p2, *clip;
float d;
// don't clip if it might overflow
if ( numInPoints >= MAX_VERTS_ON_POLY - 2 ) {
*numOutPoints = 0;
return;
}
counts[0] = counts[1] = counts[2] = 0;
// determine sides for each point
for ( i = 0 ; i < numInPoints ; i++ ) {
dot = DotProduct( inPoints[i], normal );
dot -= dist;
dists[i] = dot;
if ( dot > epsilon ) {
sides[i] = SIDE_FRONT;
} else if ( dot < -epsilon ) {
sides[i] = SIDE_BACK;
} else {
sides[i] = SIDE_ON;
}
counts[sides[i]]++;
}
sides[i] = sides[0];
dists[i] = dists[0];
*numOutPoints = 0;
if ( !counts[0] ) {
return;
}
if ( !counts[1] ) {
*numOutPoints = numInPoints;
Com_Memcpy( outPoints, inPoints, numInPoints * sizeof(vec3_t) );
return;
}
for ( i = 0 ; i < numInPoints ; i++ ) {
p1 = inPoints[i];
clip = outPoints[ *numOutPoints ];
if ( sides[i] == SIDE_ON ) {
VectorCopy( p1, clip );
(*numOutPoints)++;
continue;
}
if ( sides[i] == SIDE_FRONT ) {
VectorCopy( p1, clip );
(*numOutPoints)++;
clip = outPoints[ *numOutPoints ];
}
if ( sides[i+1] == SIDE_ON || sides[i+1] == sides[i] ) {
continue;
}
// generate a split point
p2 = inPoints[ (i+1) % numInPoints ];
d = dists[i] - dists[i+1];
if ( d == 0 ) {
dot = 0;
} else {
dot = dists[i] / d;
}
// clip xyz
for (j=0 ; j<3 ; j++) {
clip[j] = p1[j] + dot * ( p2[j] - p1[j] );
}
(*numOutPoints)++;
}
}
/*
=================
R_BoxSurfaces_r
=================
*/
void R_BoxSurfaces_r(mnode_t *node, vec3_t mins, vec3_t maxs, surfaceType_t **list, int listsize, int *listlength, vec3_t dir) {
int s, c;
msurface_t *surf, **mark;
// do the tail recursion in a loop
while ( node->contents == -1 ) {
s = BoxOnPlaneSide( mins, maxs, node->plane );
if (s == 1) {
node = node->children[0];
} else if (s == 2) {
node = node->children[1];
} else {
R_BoxSurfaces_r(node->children[0], mins, maxs, list, listsize, listlength, dir);
node = node->children[1];
}
}
// add the individual surfaces
mark = node->firstmarksurface;
c = node->nummarksurfaces;
while (c--) {
//
if (*listlength >= listsize) break;
//
surf = *mark;
// check if the surface has NOIMPACT or NOMARKS set
if ( ( surf->shader->surfaceFlags & ( SURF_NOIMPACT | SURF_NOMARKS ) )
|| ( surf->shader->contentFlags & CONTENTS_FOG ) ) {
surf->viewCount = tr.viewCount;
}
// extra check for surfaces to avoid list overflows
else if (*(surf->data) == SF_FACE) {
// the face plane should go through the box
s = BoxOnPlaneSide( mins, maxs, &(( srfSurfaceFace_t * ) surf->data)->plane );
if (s == 1 || s == 2) {
surf->viewCount = tr.viewCount;
} else if (DotProduct((( srfSurfaceFace_t * ) surf->data)->plane.normal, dir) > -0.5) {
// don't add faces that make sharp angles with the projection direction
surf->viewCount = tr.viewCount;
}
}
else if (*(surfaceType_t *) (surf->data) != SF_GRID) surf->viewCount = tr.viewCount;
// check the viewCount because the surface may have
// already been added if it spans multiple leafs
if (surf->viewCount != tr.viewCount) {
surf->viewCount = tr.viewCount;
list[*listlength] = (surfaceType_t *) surf->data;
(*listlength)++;
}
mark++;
}
}
/*
=================
R_AddMarkFragments
=================
*/
void R_AddMarkFragments(int numClipPoints, vec3_t clipPoints[2][MAX_VERTS_ON_POLY],
int numPlanes, vec3_t *normals, float *dists,
int maxPoints, vec3_t pointBuffer,
int maxFragments, markFragment_t *fragmentBuffer,
int *returnedPoints, int *returnedFragments,
vec3_t mins, vec3_t maxs) {
int pingPong, i;
markFragment_t *mf;
// chop the surface by all the bounding planes of the to be projected polygon
pingPong = 0;
for ( i = 0 ; i < numPlanes ; i++ ) {
R_ChopPolyBehindPlane( numClipPoints, clipPoints[pingPong],
&numClipPoints, clipPoints[!pingPong],
normals[i], dists[i], 0.5 );
pingPong ^= 1;
if ( numClipPoints == 0 ) {
break;
}
}
// completely clipped away?
if ( numClipPoints == 0 ) {
return;
}
// add this fragment to the returned list
if ( numClipPoints + (*returnedPoints) > maxPoints ) {
return; // not enough space for this polygon
}
/*
// all the clip points should be within the bounding box
for ( i = 0 ; i < numClipPoints ; i++ ) {
int j;
for ( j = 0 ; j < 3 ; j++ ) {
if (clipPoints[pingPong][i][j] < mins[j] - 0.5) break;
if (clipPoints[pingPong][i][j] > maxs[j] + 0.5) break;
}
if (j < 3) break;
}
if (i < numClipPoints) return;
*/
mf = fragmentBuffer + (*returnedFragments);
mf->firstPoint = (*returnedPoints);
mf->numPoints = numClipPoints;
Com_Memcpy( pointBuffer + (*returnedPoints) * 3, clipPoints[pingPong], numClipPoints * sizeof(vec3_t) );
(*returnedPoints) += numClipPoints;
(*returnedFragments)++;
}
/*
=================
R_MarkFragments
=================
*/
int R_MarkFragments( int numPoints, const vec3_t *points, const vec3_t projection,
int maxPoints, vec3_t pointBuffer, int maxFragments, markFragment_t *fragmentBuffer ) {
int numsurfaces, numPlanes;
int i, j, k, m, n;
surfaceType_t *surfaces[64];
vec3_t mins, maxs;
int returnedFragments;
int returnedPoints;
vec3_t normals[MAX_VERTS_ON_POLY+2];
float dists[MAX_VERTS_ON_POLY+2];
vec3_t clipPoints[2][MAX_VERTS_ON_POLY];
int numClipPoints;
float *v;
srfSurfaceFace_t *surf;
srfGridMesh_t *cv;
drawVert_t *dv;
vec3_t normal;
vec3_t projectionDir;
vec3_t v1, v2;
int *indexes;
//increment view count for double check prevention
tr.viewCount++;
//
VectorNormalize2( projection, projectionDir );
// find all the brushes that are to be considered
ClearBounds( mins, maxs );
for ( i = 0 ; i < numPoints ; i++ ) {
vec3_t temp;
AddPointToBounds( points[i], mins, maxs );
VectorAdd( points[i], projection, temp );
AddPointToBounds( temp, mins, maxs );
// make sure we get all the leafs (also the one(s) in front of the hit surface)
VectorMA( points[i], -20, projectionDir, temp );
AddPointToBounds( temp, mins, maxs );
}
if (numPoints > MAX_VERTS_ON_POLY) numPoints = MAX_VERTS_ON_POLY;
// create the bounding planes for the to be projected polygon
for ( i = 0 ; i < numPoints ; i++ ) {
VectorSubtract(points[(i+1)%numPoints], points[i], v1);
VectorAdd(points[i], projection, v2);
VectorSubtract(points[i], v2, v2);
CrossProduct(v1, v2, normals[i]);
VectorNormalizeFast(normals[i]);
dists[i] = DotProduct(normals[i], points[i]);
}
// add near and far clipping planes for projection
VectorCopy(projectionDir, normals[numPoints]);
dists[numPoints] = DotProduct(normals[numPoints], points[0]) - 32;
VectorCopy(projectionDir, normals[numPoints+1]);
VectorInverse(normals[numPoints+1]);
dists[numPoints+1] = DotProduct(normals[numPoints+1], points[0]) - 20;
numPlanes = numPoints + 2;
numsurfaces = 0;
R_BoxSurfaces_r(tr.world->nodes, mins, maxs, surfaces, 64, &numsurfaces, projectionDir);
//assert(numsurfaces <= 64);
//assert(numsurfaces != 64);
returnedPoints = 0;
returnedFragments = 0;
for ( i = 0 ; i < numsurfaces ; i++ ) {
if (*surfaces[i] == SF_GRID) {
cv = (srfGridMesh_t *) surfaces[i];
for ( m = 0 ; m < cv->height - 1 ; m++ ) {
for ( n = 0 ; n < cv->width - 1 ; n++ ) {
// We triangulate the grid and chop all triangles within
// the bounding planes of the to be projected polygon.
// LOD is not taken into account, not such a big deal though.
//
// It's probably much nicer to chop the grid itself and deal
// with this grid as a normal SF_GRID surface so LOD will
// be applied. However the LOD of that chopped grid must
// be synced with the LOD of the original curve.
// One way to do this; the chopped grid shares vertices with
// the original curve. When LOD is applied to the original
// curve the unused vertices are flagged. Now the chopped curve
// should skip the flagged vertices. This still leaves the
// problems with the vertices at the chopped grid edges.
//
// To avoid issues when LOD applied to "hollow curves" (like
// the ones around many jump pads) we now just add a 2 unit
// offset to the triangle vertices.
// The offset is added in the vertex normal vector direction
// so all triangles will still fit together.
// The 2 unit offset should avoid pretty much all LOD problems.
numClipPoints = 3;
dv = cv->verts + m * cv->width + n;
VectorCopy(dv[0].xyz, clipPoints[0][0]);
VectorMA(clipPoints[0][0], MARKER_OFFSET, dv[0].normal, clipPoints[0][0]);
VectorCopy(dv[cv->width].xyz, clipPoints[0][1]);
VectorMA(clipPoints[0][1], MARKER_OFFSET, dv[cv->width].normal, clipPoints[0][1]);
VectorCopy(dv[1].xyz, clipPoints[0][2]);
VectorMA(clipPoints[0][2], MARKER_OFFSET, dv[1].normal, clipPoints[0][2]);
// check the normal of this triangle
VectorSubtract(clipPoints[0][0], clipPoints[0][1], v1);
VectorSubtract(clipPoints[0][2], clipPoints[0][1], v2);
CrossProduct(v1, v2, normal);
VectorNormalizeFast(normal);
if (DotProduct(normal, projectionDir) < -0.1) {
// add the fragments of this triangle
R_AddMarkFragments(numClipPoints, clipPoints,
numPlanes, normals, dists,
maxPoints, pointBuffer,
maxFragments, fragmentBuffer,
&returnedPoints, &returnedFragments, mins, maxs);
if ( returnedFragments == maxFragments ) {
return returnedFragments; // not enough space for more fragments
}
}
VectorCopy(dv[1].xyz, clipPoints[0][0]);
VectorMA(clipPoints[0][0], MARKER_OFFSET, dv[1].normal, clipPoints[0][0]);
VectorCopy(dv[cv->width].xyz, clipPoints[0][1]);
VectorMA(clipPoints[0][1], MARKER_OFFSET, dv[cv->width].normal, clipPoints[0][1]);
VectorCopy(dv[cv->width+1].xyz, clipPoints[0][2]);
VectorMA(clipPoints[0][2], MARKER_OFFSET, dv[cv->width+1].normal, clipPoints[0][2]);
// check the normal of this triangle
VectorSubtract(clipPoints[0][0], clipPoints[0][1], v1);
VectorSubtract(clipPoints[0][2], clipPoints[0][1], v2);
CrossProduct(v1, v2, normal);
VectorNormalizeFast(normal);
if (DotProduct(normal, projectionDir) < -0.05) {
// add the fragments of this triangle
R_AddMarkFragments(numClipPoints, clipPoints,
numPlanes, normals, dists,
maxPoints, pointBuffer,
maxFragments, fragmentBuffer,
&returnedPoints, &returnedFragments, mins, maxs);
if ( returnedFragments == maxFragments ) {
return returnedFragments; // not enough space for more fragments
}
}
}
}
}
else if (*surfaces[i] == SF_FACE) {
surf = ( srfSurfaceFace_t * ) surfaces[i];
// check the normal of this face
if (DotProduct(surf->plane.normal, projectionDir) > -0.5) {
continue;
}
/*
VectorSubtract(clipPoints[0][0], clipPoints[0][1], v1);
VectorSubtract(clipPoints[0][2], clipPoints[0][1], v2);
CrossProduct(v1, v2, normal);
VectorNormalize(normal);
if (DotProduct(normal, projectionDir) > -0.5) continue;
*/
indexes = (int *)( (byte *)surf + surf->ofsIndices );
for ( k = 0 ; k < surf->numIndices ; k += 3 ) {
for ( j = 0 ; j < 3 ; j++ ) {
v = surf->points[0] + VERTEXSIZE * indexes[k+j];;
VectorMA( v, MARKER_OFFSET, surf->plane.normal, clipPoints[0][j] );
}
// add the fragments of this face
R_AddMarkFragments( 3 , clipPoints,
numPlanes, normals, dists,
maxPoints, pointBuffer,
maxFragments, fragmentBuffer,
&returnedPoints, &returnedFragments, mins, maxs);
if ( returnedFragments == maxFragments ) {
return returnedFragments; // not enough space for more fragments
}
}
continue;
}
else {
// ignore all other world surfaces
// might be cool to also project polygons on a triangle soup
// however this will probably create huge amounts of extra polys
// even more than the projection onto curves
continue;
}
}
return returnedFragments;
}

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/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.
This file is part of Quake III Arena source code.
Quake III Arena source code is free software; you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
Quake III Arena source code is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Foobar; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
===========================================================================
*/
// tr_mesh.c: triangle model functions
#include "tr_local.h"
static float ProjectRadius( float r, vec3_t location )
{
float pr;
float dist;
float c;
vec3_t p;
float projected[4];
c = DotProduct( tr.viewParms.or.axis[0], tr.viewParms.or.origin );
dist = DotProduct( tr.viewParms.or.axis[0], location ) - c;
if ( dist <= 0 )
return 0;
p[0] = 0;
p[1] = fabs( r );
p[2] = -dist;
projected[0] = p[0] * tr.viewParms.projectionMatrix[0] +
p[1] * tr.viewParms.projectionMatrix[4] +
p[2] * tr.viewParms.projectionMatrix[8] +
tr.viewParms.projectionMatrix[12];
projected[1] = p[0] * tr.viewParms.projectionMatrix[1] +
p[1] * tr.viewParms.projectionMatrix[5] +
p[2] * tr.viewParms.projectionMatrix[9] +
tr.viewParms.projectionMatrix[13];
projected[2] = p[0] * tr.viewParms.projectionMatrix[2] +
p[1] * tr.viewParms.projectionMatrix[6] +
p[2] * tr.viewParms.projectionMatrix[10] +
tr.viewParms.projectionMatrix[14];
projected[3] = p[0] * tr.viewParms.projectionMatrix[3] +
p[1] * tr.viewParms.projectionMatrix[7] +
p[2] * tr.viewParms.projectionMatrix[11] +
tr.viewParms.projectionMatrix[15];
pr = projected[1] / projected[3];
if ( pr > 1.0f )
pr = 1.0f;
return pr;
}
/*
=============
R_CullModel
=============
*/
static int R_CullModel( md3Header_t *header, trRefEntity_t *ent ) {
vec3_t bounds[2];
md3Frame_t *oldFrame, *newFrame;
int i;
// compute frame pointers
newFrame = ( md3Frame_t * ) ( ( byte * ) header + header->ofsFrames ) + ent->e.frame;
oldFrame = ( md3Frame_t * ) ( ( byte * ) header + header->ofsFrames ) + ent->e.oldframe;
// cull bounding sphere ONLY if this is not an upscaled entity
if ( !ent->e.nonNormalizedAxes )
{
if ( ent->e.frame == ent->e.oldframe )
{
switch ( R_CullLocalPointAndRadius( newFrame->localOrigin, newFrame->radius ) )
{
case CULL_OUT:
tr.pc.c_sphere_cull_md3_out++;
return CULL_OUT;
case CULL_IN:
tr.pc.c_sphere_cull_md3_in++;
return CULL_IN;
case CULL_CLIP:
tr.pc.c_sphere_cull_md3_clip++;
break;
}
}
else
{
int sphereCull, sphereCullB;
sphereCull = R_CullLocalPointAndRadius( newFrame->localOrigin, newFrame->radius );
if ( newFrame == oldFrame ) {
sphereCullB = sphereCull;
} else {
sphereCullB = R_CullLocalPointAndRadius( oldFrame->localOrigin, oldFrame->radius );
}
if ( sphereCull == sphereCullB )
{
if ( sphereCull == CULL_OUT )
{
tr.pc.c_sphere_cull_md3_out++;
return CULL_OUT;
}
else if ( sphereCull == CULL_IN )
{
tr.pc.c_sphere_cull_md3_in++;
return CULL_IN;
}
else
{
tr.pc.c_sphere_cull_md3_clip++;
}
}
}
}
// calculate a bounding box in the current coordinate system
for (i = 0 ; i < 3 ; i++) {
bounds[0][i] = oldFrame->bounds[0][i] < newFrame->bounds[0][i] ? oldFrame->bounds[0][i] : newFrame->bounds[0][i];
bounds[1][i] = oldFrame->bounds[1][i] > newFrame->bounds[1][i] ? oldFrame->bounds[1][i] : newFrame->bounds[1][i];
}
switch ( R_CullLocalBox( bounds ) )
{
case CULL_IN:
tr.pc.c_box_cull_md3_in++;
return CULL_IN;
case CULL_CLIP:
tr.pc.c_box_cull_md3_clip++;
return CULL_CLIP;
case CULL_OUT:
default:
tr.pc.c_box_cull_md3_out++;
return CULL_OUT;
}
}
/*
=================
R_ComputeLOD
=================
*/
int R_ComputeLOD( trRefEntity_t *ent ) {
float radius;
float flod, lodscale;
float projectedRadius;
md3Frame_t *frame;
int lod;
if ( tr.currentModel->numLods < 2 )
{
// model has only 1 LOD level, skip computations and bias
lod = 0;
}
else
{
// multiple LODs exist, so compute projected bounding sphere
// and use that as a criteria for selecting LOD
frame = ( md3Frame_t * ) ( ( ( unsigned char * ) tr.currentModel->md3[0] ) + tr.currentModel->md3[0]->ofsFrames );
frame += ent->e.frame;
radius = RadiusFromBounds( frame->bounds[0], frame->bounds[1] );
if ( ( projectedRadius = ProjectRadius( radius, ent->e.origin ) ) != 0 )
{
lodscale = r_lodscale->value;
if (lodscale > 20) lodscale = 20;
flod = 1.0f - projectedRadius * lodscale;
}
else
{
// object intersects near view plane, e.g. view weapon
flod = 0;
}
flod *= tr.currentModel->numLods;
lod = myftol( flod );
if ( lod < 0 )
{
lod = 0;
}
else if ( lod >= tr.currentModel->numLods )
{
lod = tr.currentModel->numLods - 1;
}
}
lod += r_lodbias->integer;
if ( lod >= tr.currentModel->numLods )
lod = tr.currentModel->numLods - 1;
if ( lod < 0 )
lod = 0;
return lod;
}
/*
=================
R_ComputeFogNum
=================
*/
int R_ComputeFogNum( md3Header_t *header, trRefEntity_t *ent ) {
int i, j;
fog_t *fog;
md3Frame_t *md3Frame;
vec3_t localOrigin;
if ( tr.refdef.rdflags & RDF_NOWORLDMODEL ) {
return 0;
}
// FIXME: non-normalized axis issues
md3Frame = ( md3Frame_t * ) ( ( byte * ) header + header->ofsFrames ) + ent->e.frame;
VectorAdd( ent->e.origin, md3Frame->localOrigin, localOrigin );
for ( i = 1 ; i < tr.world->numfogs ; i++ ) {
fog = &tr.world->fogs[i];
for ( j = 0 ; j < 3 ; j++ ) {
if ( localOrigin[j] - md3Frame->radius >= fog->bounds[1][j] ) {
break;
}
if ( localOrigin[j] + md3Frame->radius <= fog->bounds[0][j] ) {
break;
}
}
if ( j == 3 ) {
return i;
}
}
return 0;
}
/*
=================
R_AddMD3Surfaces
=================
*/
void R_AddMD3Surfaces( trRefEntity_t *ent ) {
int i;
md3Header_t *header = 0;
md3Surface_t *surface = 0;
md3Shader_t *md3Shader = 0;
shader_t *shader = 0;
int cull;
int lod;
int fogNum;
qboolean personalModel;
// don't add third_person objects if not in a portal
personalModel = (ent->e.renderfx & RF_THIRD_PERSON) && !tr.viewParms.isPortal;
if ( ent->e.renderfx & RF_WRAP_FRAMES ) {
ent->e.frame %= tr.currentModel->md3[0]->numFrames;
ent->e.oldframe %= tr.currentModel->md3[0]->numFrames;
}
//
// Validate the frames so there is no chance of a crash.
// This will write directly into the entity structure, so
// when the surfaces are rendered, they don't need to be
// range checked again.
//
if ( (ent->e.frame >= tr.currentModel->md3[0]->numFrames)
|| (ent->e.frame < 0)
|| (ent->e.oldframe >= tr.currentModel->md3[0]->numFrames)
|| (ent->e.oldframe < 0) ) {
ri.Printf( PRINT_DEVELOPER, "R_AddMD3Surfaces: no such frame %d to %d for '%s'\n",
ent->e.oldframe, ent->e.frame,
tr.currentModel->name );
ent->e.frame = 0;
ent->e.oldframe = 0;
}
//
// compute LOD
//
lod = R_ComputeLOD( ent );
header = tr.currentModel->md3[lod];
//
// cull the entire model if merged bounding box of both frames
// is outside the view frustum.
//
cull = R_CullModel ( header, ent );
if ( cull == CULL_OUT ) {
return;
}
//
// set up lighting now that we know we aren't culled
//
if ( !personalModel || r_shadows->integer > 1 ) {
R_SetupEntityLighting( &tr.refdef, ent );
}
//
// see if we are in a fog volume
//
fogNum = R_ComputeFogNum( header, ent );
//
// draw all surfaces
//
surface = (md3Surface_t *)( (byte *)header + header->ofsSurfaces );
for ( i = 0 ; i < header->numSurfaces ; i++ ) {
if ( ent->e.customShader ) {
shader = R_GetShaderByHandle( ent->e.customShader );
} else if ( ent->e.customSkin > 0 && ent->e.customSkin < tr.numSkins ) {
skin_t *skin;
int j;
skin = R_GetSkinByHandle( ent->e.customSkin );
// match the surface name to something in the skin file
shader = tr.defaultShader;
for ( j = 0 ; j < skin->numSurfaces ; j++ ) {
// the names have both been lowercased
if ( !strcmp( skin->surfaces[j]->name, surface->name ) ) {
shader = skin->surfaces[j]->shader;
break;
}
}
if (shader == tr.defaultShader) {
ri.Printf( PRINT_DEVELOPER, "WARNING: no shader for surface %s in skin %s\n", surface->name, skin->name);
}
else if (shader->defaultShader) {
ri.Printf( PRINT_DEVELOPER, "WARNING: shader %s in skin %s not found\n", shader->name, skin->name);
}
} else if ( surface->numShaders <= 0 ) {
shader = tr.defaultShader;
} else {
md3Shader = (md3Shader_t *) ( (byte *)surface + surface->ofsShaders );
md3Shader += ent->e.skinNum % surface->numShaders;
shader = tr.shaders[ md3Shader->shaderIndex ];
}
// we will add shadows even if the main object isn't visible in the view
// stencil shadows can't do personal models unless I polyhedron clip
if ( !personalModel
&& r_shadows->integer == 2
&& fogNum == 0
&& !(ent->e.renderfx & ( RF_NOSHADOW | RF_DEPTHHACK ) )
&& shader->sort == SS_OPAQUE ) {
R_AddDrawSurf( (void *)surface, tr.shadowShader, 0, qfalse );
}
// projection shadows work fine with personal models
if ( r_shadows->integer == 3
&& fogNum == 0
&& (ent->e.renderfx & RF_SHADOW_PLANE )
&& shader->sort == SS_OPAQUE ) {
R_AddDrawSurf( (void *)surface, tr.projectionShadowShader, 0, qfalse );
}
// don't add third_person objects if not viewing through a portal
if ( !personalModel ) {
R_AddDrawSurf( (void *)surface, shader, fogNum, qfalse );
}
surface = (md3Surface_t *)( (byte *)surface + surface->ofsEnd );
}
}

700
code/renderer/tr_model.c Normal file
View file

@ -0,0 +1,700 @@
/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.
This file is part of Quake III Arena source code.
Quake III Arena source code is free software; you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
Quake III Arena source code is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Foobar; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
===========================================================================
*/
// tr_models.c -- model loading and caching
#include "tr_local.h"
#define LL(x) x=LittleLong(x)
static qboolean R_LoadMD3 (model_t *mod, int lod, void *buffer, const char *name );
static qboolean R_LoadMD4 (model_t *mod, void *buffer, const char *name );
model_t *loadmodel;
/*
** R_GetModelByHandle
*/
model_t *R_GetModelByHandle( qhandle_t index ) {
model_t *mod;
// out of range gets the defualt model
if ( index < 1 || index >= tr.numModels ) {
return tr.models[0];
}
mod = tr.models[index];
return mod;
}
//===============================================================================
/*
** R_AllocModel
*/
model_t *R_AllocModel( void ) {
model_t *mod;
if ( tr.numModels == MAX_MOD_KNOWN ) {
return NULL;
}
mod = ri.Hunk_Alloc( sizeof( *tr.models[tr.numModels] ), h_low );
mod->index = tr.numModels;
tr.models[tr.numModels] = mod;
tr.numModels++;
return mod;
}
/*
====================
RE_RegisterModel
Loads in a model for the given name
Zero will be returned if the model fails to load.
An entry will be retained for failed models as an
optimization to prevent disk rescanning if they are
asked for again.
====================
*/
qhandle_t RE_RegisterModel( const char *name ) {
model_t *mod;
unsigned *buf;
int lod;
int ident;
qboolean loaded;
qhandle_t hModel;
int numLoaded;
if ( !name || !name[0] ) {
ri.Printf( PRINT_ALL, "RE_RegisterModel: NULL name\n" );
return 0;
}
if ( strlen( name ) >= MAX_QPATH ) {
Com_Printf( "Model name exceeds MAX_QPATH\n" );
return 0;
}
//
// search the currently loaded models
//
for ( hModel = 1 ; hModel < tr.numModels; hModel++ ) {
mod = tr.models[hModel];
if ( !strcmp( mod->name, name ) ) {
if( mod->type == MOD_BAD ) {
return 0;
}
return hModel;
}
}
// allocate a new model_t
if ( ( mod = R_AllocModel() ) == NULL ) {
ri.Printf( PRINT_WARNING, "RE_RegisterModel: R_AllocModel() failed for '%s'\n", name);
return 0;
}
// only set the name after the model has been successfully loaded
Q_strncpyz( mod->name, name, sizeof( mod->name ) );
// make sure the render thread is stopped
R_SyncRenderThread();
mod->numLods = 0;
//
// load the files
//
numLoaded = 0;
for ( lod = MD3_MAX_LODS - 1 ; lod >= 0 ; lod-- ) {
char filename[1024];
strcpy( filename, name );
if ( lod != 0 ) {
char namebuf[80];
if ( strrchr( filename, '.' ) ) {
*strrchr( filename, '.' ) = 0;
}
sprintf( namebuf, "_%d.md3", lod );
strcat( filename, namebuf );
}
ri.FS_ReadFile( filename, (void **)&buf );
if ( !buf ) {
continue;
}
loadmodel = mod;
ident = LittleLong(*(unsigned *)buf);
if ( ident == MD4_IDENT ) {
loaded = R_LoadMD4( mod, buf, name );
} else {
if ( ident != MD3_IDENT ) {
ri.Printf (PRINT_WARNING,"RE_RegisterModel: unknown fileid for %s\n", name);
goto fail;
}
loaded = R_LoadMD3( mod, lod, buf, name );
}
ri.FS_FreeFile (buf);
if ( !loaded ) {
if ( lod == 0 ) {
goto fail;
} else {
break;
}
} else {
mod->numLods++;
numLoaded++;
// if we have a valid model and are biased
// so that we won't see any higher detail ones,
// stop loading them
// if ( lod <= r_lodbias->integer ) {
// break;
// }
}
}
if ( numLoaded ) {
// duplicate into higher lod spots that weren't
// loaded, in case the user changes r_lodbias on the fly
for ( lod-- ; lod >= 0 ; lod-- ) {
mod->numLods++;
mod->md3[lod] = mod->md3[lod+1];
}
return mod->index;
}
#ifdef _DEBUG
else {
ri.Printf (PRINT_WARNING,"RE_RegisterModel: couldn't load %s\n", name);
}
#endif
fail:
// we still keep the model_t around, so if the model name is asked for
// again, we won't bother scanning the filesystem
mod->type = MOD_BAD;
return 0;
}
/*
=================
R_LoadMD3
=================
*/
static qboolean R_LoadMD3 (model_t *mod, int lod, void *buffer, const char *mod_name ) {
int i, j;
md3Header_t *pinmodel;
md3Frame_t *frame;
md3Surface_t *surf;
md3Shader_t *shader;
md3Triangle_t *tri;
md3St_t *st;
md3XyzNormal_t *xyz;
md3Tag_t *tag;
int version;
int size;
pinmodel = (md3Header_t *)buffer;
version = LittleLong (pinmodel->version);
if (version != MD3_VERSION) {
ri.Printf( PRINT_WARNING, "R_LoadMD3: %s has wrong version (%i should be %i)\n",
mod_name, version, MD3_VERSION);
return qfalse;
}
mod->type = MOD_MESH;
size = LittleLong(pinmodel->ofsEnd);
mod->dataSize += size;
mod->md3[lod] = ri.Hunk_Alloc( size, h_low );
Com_Memcpy (mod->md3[lod], buffer, LittleLong(pinmodel->ofsEnd) );
LL(mod->md3[lod]->ident);
LL(mod->md3[lod]->version);
LL(mod->md3[lod]->numFrames);
LL(mod->md3[lod]->numTags);
LL(mod->md3[lod]->numSurfaces);
LL(mod->md3[lod]->ofsFrames);
LL(mod->md3[lod]->ofsTags);
LL(mod->md3[lod]->ofsSurfaces);
LL(mod->md3[lod]->ofsEnd);
if ( mod->md3[lod]->numFrames < 1 ) {
ri.Printf( PRINT_WARNING, "R_LoadMD3: %s has no frames\n", mod_name );
return qfalse;
}
// swap all the frames
frame = (md3Frame_t *) ( (byte *)mod->md3[lod] + mod->md3[lod]->ofsFrames );
for ( i = 0 ; i < mod->md3[lod]->numFrames ; i++, frame++) {
frame->radius = LittleFloat( frame->radius );
for ( j = 0 ; j < 3 ; j++ ) {
frame->bounds[0][j] = LittleFloat( frame->bounds[0][j] );
frame->bounds[1][j] = LittleFloat( frame->bounds[1][j] );
frame->localOrigin[j] = LittleFloat( frame->localOrigin[j] );
}
}
// swap all the tags
tag = (md3Tag_t *) ( (byte *)mod->md3[lod] + mod->md3[lod]->ofsTags );
for ( i = 0 ; i < mod->md3[lod]->numTags * mod->md3[lod]->numFrames ; i++, tag++) {
for ( j = 0 ; j < 3 ; j++ ) {
tag->origin[j] = LittleFloat( tag->origin[j] );
tag->axis[0][j] = LittleFloat( tag->axis[0][j] );
tag->axis[1][j] = LittleFloat( tag->axis[1][j] );
tag->axis[2][j] = LittleFloat( tag->axis[2][j] );
}
}
// swap all the surfaces
surf = (md3Surface_t *) ( (byte *)mod->md3[lod] + mod->md3[lod]->ofsSurfaces );
for ( i = 0 ; i < mod->md3[lod]->numSurfaces ; i++) {
LL(surf->ident);
LL(surf->flags);
LL(surf->numFrames);
LL(surf->numShaders);
LL(surf->numTriangles);
LL(surf->ofsTriangles);
LL(surf->numVerts);
LL(surf->ofsShaders);
LL(surf->ofsSt);
LL(surf->ofsXyzNormals);
LL(surf->ofsEnd);
if ( surf->numVerts > SHADER_MAX_VERTEXES ) {
ri.Error (ERR_DROP, "R_LoadMD3: %s has more than %i verts on a surface (%i)",
mod_name, SHADER_MAX_VERTEXES, surf->numVerts );
}
if ( surf->numTriangles*3 > SHADER_MAX_INDEXES ) {
ri.Error (ERR_DROP, "R_LoadMD3: %s has more than %i triangles on a surface (%i)",
mod_name, SHADER_MAX_INDEXES / 3, surf->numTriangles );
}
// change to surface identifier
surf->ident = SF_MD3;
// lowercase the surface name so skin compares are faster
Q_strlwr( surf->name );
// strip off a trailing _1 or _2
// this is a crutch for q3data being a mess
j = strlen( surf->name );
if ( j > 2 && surf->name[j-2] == '_' ) {
surf->name[j-2] = 0;
}
// register the shaders
shader = (md3Shader_t *) ( (byte *)surf + surf->ofsShaders );
for ( j = 0 ; j < surf->numShaders ; j++, shader++ ) {
shader_t *sh;
sh = R_FindShader( shader->name, LIGHTMAP_NONE, qtrue );
if ( sh->defaultShader ) {
shader->shaderIndex = 0;
} else {
shader->shaderIndex = sh->index;
}
}
// swap all the triangles
tri = (md3Triangle_t *) ( (byte *)surf + surf->ofsTriangles );
for ( j = 0 ; j < surf->numTriangles ; j++, tri++ ) {
LL(tri->indexes[0]);
LL(tri->indexes[1]);
LL(tri->indexes[2]);
}
// swap all the ST
st = (md3St_t *) ( (byte *)surf + surf->ofsSt );
for ( j = 0 ; j < surf->numVerts ; j++, st++ ) {
st->st[0] = LittleFloat( st->st[0] );
st->st[1] = LittleFloat( st->st[1] );
}
// swap all the XyzNormals
xyz = (md3XyzNormal_t *) ( (byte *)surf + surf->ofsXyzNormals );
for ( j = 0 ; j < surf->numVerts * surf->numFrames ; j++, xyz++ )
{
xyz->xyz[0] = LittleShort( xyz->xyz[0] );
xyz->xyz[1] = LittleShort( xyz->xyz[1] );
xyz->xyz[2] = LittleShort( xyz->xyz[2] );
xyz->normal = LittleShort( xyz->normal );
}
// find the next surface
surf = (md3Surface_t *)( (byte *)surf + surf->ofsEnd );
}
return qtrue;
}
/*
=================
R_LoadMD4
=================
*/
static qboolean R_LoadMD4( model_t *mod, void *buffer, const char *mod_name ) {
int i, j, k, lodindex;
md4Header_t *pinmodel, *md4;
md4Frame_t *frame;
md4LOD_t *lod;
md4Surface_t *surf;
md4Triangle_t *tri;
md4Vertex_t *v;
int version;
int size;
shader_t *sh;
int frameSize;
pinmodel = (md4Header_t *)buffer;
version = LittleLong (pinmodel->version);
if (version != MD4_VERSION) {
ri.Printf( PRINT_WARNING, "R_LoadMD4: %s has wrong version (%i should be %i)\n",
mod_name, version, MD4_VERSION);
return qfalse;
}
mod->type = MOD_MD4;
size = LittleLong(pinmodel->ofsEnd);
mod->dataSize += size;
md4 = mod->md4 = ri.Hunk_Alloc( size, h_low );
Com_Memcpy( md4, buffer, LittleLong(pinmodel->ofsEnd) );
LL(md4->ident);
LL(md4->version);
LL(md4->numFrames);
LL(md4->numBones);
LL(md4->numLODs);
LL(md4->ofsFrames);
LL(md4->ofsLODs);
LL(md4->ofsEnd);
if ( md4->numFrames < 1 ) {
ri.Printf( PRINT_WARNING, "R_LoadMD4: %s has no frames\n", mod_name );
return qfalse;
}
// we don't need to swap tags in the renderer, they aren't used
// swap all the frames
frameSize = (int)( &((md4Frame_t *)0)->bones[ md4->numBones ] );
for ( i = 0 ; i < md4->numFrames ; i++, frame++) {
frame = (md4Frame_t *) ( (byte *)md4 + md4->ofsFrames + i * frameSize );
frame->radius = LittleFloat( frame->radius );
for ( j = 0 ; j < 3 ; j++ ) {
frame->bounds[0][j] = LittleFloat( frame->bounds[0][j] );
frame->bounds[1][j] = LittleFloat( frame->bounds[1][j] );
frame->localOrigin[j] = LittleFloat( frame->localOrigin[j] );
}
for ( j = 0 ; j < md4->numBones * sizeof( md4Bone_t ) / 4 ; j++ ) {
((float *)frame->bones)[j] = LittleFloat( ((float *)frame->bones)[j] );
}
}
// swap all the LOD's
lod = (md4LOD_t *) ( (byte *)md4 + md4->ofsLODs );
for ( lodindex = 0 ; lodindex < md4->numLODs ; lodindex++ ) {
// swap all the surfaces
surf = (md4Surface_t *) ( (byte *)lod + lod->ofsSurfaces );
for ( i = 0 ; i < lod->numSurfaces ; i++) {
LL(surf->ident);
LL(surf->numTriangles);
LL(surf->ofsTriangles);
LL(surf->numVerts);
LL(surf->ofsVerts);
LL(surf->ofsEnd);
if ( surf->numVerts > SHADER_MAX_VERTEXES ) {
ri.Error (ERR_DROP, "R_LoadMD3: %s has more than %i verts on a surface (%i)",
mod_name, SHADER_MAX_VERTEXES, surf->numVerts );
}
if ( surf->numTriangles*3 > SHADER_MAX_INDEXES ) {
ri.Error (ERR_DROP, "R_LoadMD3: %s has more than %i triangles on a surface (%i)",
mod_name, SHADER_MAX_INDEXES / 3, surf->numTriangles );
}
// change to surface identifier
surf->ident = SF_MD4;
// lowercase the surface name so skin compares are faster
Q_strlwr( surf->name );
// register the shaders
sh = R_FindShader( surf->shader, LIGHTMAP_NONE, qtrue );
if ( sh->defaultShader ) {
surf->shaderIndex = 0;
} else {
surf->shaderIndex = sh->index;
}
// swap all the triangles
tri = (md4Triangle_t *) ( (byte *)surf + surf->ofsTriangles );
for ( j = 0 ; j < surf->numTriangles ; j++, tri++ ) {
LL(tri->indexes[0]);
LL(tri->indexes[1]);
LL(tri->indexes[2]);
}
// swap all the vertexes
// FIXME
// This makes TFC's skeletons work. Shouldn't be necessary anymore, but left
// in for reference.
//v = (md4Vertex_t *) ( (byte *)surf + surf->ofsVerts + 12);
v = (md4Vertex_t *) ( (byte *)surf + surf->ofsVerts);
for ( j = 0 ; j < surf->numVerts ; j++ ) {
v->normal[0] = LittleFloat( v->normal[0] );
v->normal[1] = LittleFloat( v->normal[1] );
v->normal[2] = LittleFloat( v->normal[2] );
v->texCoords[0] = LittleFloat( v->texCoords[0] );
v->texCoords[1] = LittleFloat( v->texCoords[1] );
v->numWeights = LittleLong( v->numWeights );
for ( k = 0 ; k < v->numWeights ; k++ ) {
v->weights[k].boneIndex = LittleLong( v->weights[k].boneIndex );
v->weights[k].boneWeight = LittleFloat( v->weights[k].boneWeight );
v->weights[k].offset[0] = LittleFloat( v->weights[k].offset[0] );
v->weights[k].offset[1] = LittleFloat( v->weights[k].offset[1] );
v->weights[k].offset[2] = LittleFloat( v->weights[k].offset[2] );
}
// FIXME
// This makes TFC's skeletons work. Shouldn't be necessary anymore, but left
// in for reference.
//v = (md4Vertex_t *)( ( byte * )&v->weights[v->numWeights] + 12 );
v = (md4Vertex_t *)( ( byte * )&v->weights[v->numWeights]);
}
// find the next surface
surf = (md4Surface_t *)( (byte *)surf + surf->ofsEnd );
}
// find the next LOD
lod = (md4LOD_t *)( (byte *)lod + lod->ofsEnd );
}
return qtrue;
}
//=============================================================================
/*
** RE_BeginRegistration
*/
void RE_BeginRegistration( glconfig_t *glconfigOut ) {
R_Init();
*glconfigOut = glConfig;
R_SyncRenderThread();
tr.viewCluster = -1; // force markleafs to regenerate
R_ClearFlares();
RE_ClearScene();
tr.registered = qtrue;
// NOTE: this sucks, for some reason the first stretch pic is never drawn
// without this we'd see a white flash on a level load because the very
// first time the level shot would not be drawn
RE_StretchPic(0, 0, 0, 0, 0, 0, 1, 1, 0);
}
//=============================================================================
/*
===============
R_ModelInit
===============
*/
void R_ModelInit( void ) {
model_t *mod;
// leave a space for NULL model
tr.numModels = 0;
mod = R_AllocModel();
mod->type = MOD_BAD;
}
/*
================
R_Modellist_f
================
*/
void R_Modellist_f( void ) {
int i, j;
model_t *mod;
int total;
int lods;
total = 0;
for ( i = 1 ; i < tr.numModels; i++ ) {
mod = tr.models[i];
lods = 1;
for ( j = 1 ; j < MD3_MAX_LODS ; j++ ) {
if ( mod->md3[j] && mod->md3[j] != mod->md3[j-1] ) {
lods++;
}
}
ri.Printf( PRINT_ALL, "%8i : (%i) %s\n",mod->dataSize, lods, mod->name );
total += mod->dataSize;
}
ri.Printf( PRINT_ALL, "%8i : Total models\n", total );
#if 0 // not working right with new hunk
if ( tr.world ) {
ri.Printf( PRINT_ALL, "\n%8i : %s\n", tr.world->dataSize, tr.world->name );
}
#endif
}
//=============================================================================
/*
================
R_GetTag
================
*/
static md3Tag_t *R_GetTag( md3Header_t *mod, int frame, const char *tagName ) {
md3Tag_t *tag;
int i;
if ( frame >= mod->numFrames ) {
// it is possible to have a bad frame while changing models, so don't error
frame = mod->numFrames - 1;
}
tag = (md3Tag_t *)((byte *)mod + mod->ofsTags) + frame * mod->numTags;
for ( i = 0 ; i < mod->numTags ; i++, tag++ ) {
if ( !strcmp( tag->name, tagName ) ) {
return tag; // found it
}
}
return NULL;
}
/*
================
R_LerpTag
================
*/
int R_LerpTag( orientation_t *tag, qhandle_t handle, int startFrame, int endFrame,
float frac, const char *tagName ) {
md3Tag_t *start, *end;
int i;
float frontLerp, backLerp;
model_t *model;
model = R_GetModelByHandle( handle );
if ( !model->md3[0] ) {
AxisClear( tag->axis );
VectorClear( tag->origin );
return qfalse;
}
start = R_GetTag( model->md3[0], startFrame, tagName );
end = R_GetTag( model->md3[0], endFrame, tagName );
if ( !start || !end ) {
AxisClear( tag->axis );
VectorClear( tag->origin );
return qfalse;
}
frontLerp = frac;
backLerp = 1.0f - frac;
for ( i = 0 ; i < 3 ; i++ ) {
tag->origin[i] = start->origin[i] * backLerp + end->origin[i] * frontLerp;
tag->axis[0][i] = start->axis[0][i] * backLerp + end->axis[0][i] * frontLerp;
tag->axis[1][i] = start->axis[1][i] * backLerp + end->axis[1][i] * frontLerp;
tag->axis[2][i] = start->axis[2][i] * backLerp + end->axis[2][i] * frontLerp;
}
VectorNormalize( tag->axis[0] );
VectorNormalize( tag->axis[1] );
VectorNormalize( tag->axis[2] );
return qtrue;
}
/*
====================
R_ModelBounds
====================
*/
void R_ModelBounds( qhandle_t handle, vec3_t mins, vec3_t maxs ) {
model_t *model;
md3Header_t *header;
md3Frame_t *frame;
model = R_GetModelByHandle( handle );
if ( model->bmodel ) {
VectorCopy( model->bmodel->bounds[0], mins );
VectorCopy( model->bmodel->bounds[1], maxs );
return;
}
if ( !model->md3[0] ) {
VectorClear( mins );
VectorClear( maxs );
return;
}
header = model->md3[0];
frame = (md3Frame_t *)( (byte *)header + header->ofsFrames );
VectorCopy( frame->bounds[0], mins );
VectorCopy( frame->bounds[1], maxs );
}

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/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.
This file is part of Quake III Arena source code.
Quake III Arena source code is free software; you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
Quake III Arena source code is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Foobar; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
===========================================================================
*/
// tr_noise.c
#include "tr_local.h"
#define NOISE_SIZE 256
#define NOISE_MASK ( NOISE_SIZE - 1 )
#define VAL( a ) s_noise_perm[ ( a ) & ( NOISE_MASK )]
#define INDEX( x, y, z, t ) VAL( x + VAL( y + VAL( z + VAL( t ) ) ) )
static float s_noise_table[NOISE_SIZE];
static int s_noise_perm[NOISE_SIZE];
#define LERP( a, b, w ) ( a * ( 1.0f - w ) + b * w )
static float GetNoiseValue( int x, int y, int z, int t )
{
int index = INDEX( ( int ) x, ( int ) y, ( int ) z, ( int ) t );
return s_noise_table[index];
}
void R_NoiseInit( void )
{
int i;
srand( 1001 );
for ( i = 0; i < NOISE_SIZE; i++ )
{
s_noise_table[i] = ( float ) ( ( ( rand() / ( float ) RAND_MAX ) * 2.0 - 1.0 ) );
s_noise_perm[i] = ( unsigned char ) ( rand() / ( float ) RAND_MAX * 255 );
}
}
float R_NoiseGet4f( float x, float y, float z, float t )
{
int i;
int ix, iy, iz, it;
float fx, fy, fz, ft;
float front[4];
float back[4];
float fvalue, bvalue, value[2], finalvalue;
ix = ( int ) floor( x );
fx = x - ix;
iy = ( int ) floor( y );
fy = y - iy;
iz = ( int ) floor( z );
fz = z - iz;
it = ( int ) floor( t );
ft = t - it;
for ( i = 0; i < 2; i++ )
{
front[0] = GetNoiseValue( ix, iy, iz, it + i );
front[1] = GetNoiseValue( ix+1, iy, iz, it + i );
front[2] = GetNoiseValue( ix, iy+1, iz, it + i );
front[3] = GetNoiseValue( ix+1, iy+1, iz, it + i );
back[0] = GetNoiseValue( ix, iy, iz + 1, it + i );
back[1] = GetNoiseValue( ix+1, iy, iz + 1, it + i );
back[2] = GetNoiseValue( ix, iy+1, iz + 1, it + i );
back[3] = GetNoiseValue( ix+1, iy+1, iz + 1, it + i );
fvalue = LERP( LERP( front[0], front[1], fx ), LERP( front[2], front[3], fx ), fy );
bvalue = LERP( LERP( back[0], back[1], fx ), LERP( back[2], back[3], fx ), fy );
value[i] = LERP( fvalue, bvalue, fz );
}
finalvalue = LERP( value[0], value[1], ft );
return finalvalue;
}

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/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.
This file is part of Quake III Arena source code.
Quake III Arena source code is free software; you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
Quake III Arena source code is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Foobar; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
===========================================================================
*/
#ifndef __TR_PUBLIC_H
#define __TR_PUBLIC_H
#include "../cgame/tr_types.h"
#define REF_API_VERSION 8
//
// these are the functions exported by the refresh module
//
typedef struct {
// called before the library is unloaded
// if the system is just reconfiguring, pass destroyWindow = qfalse,
// which will keep the screen from flashing to the desktop.
void (*Shutdown)( qboolean destroyWindow );
// All data that will be used in a level should be
// registered before rendering any frames to prevent disk hits,
// but they can still be registered at a later time
// if necessary.
//
// BeginRegistration makes any existing media pointers invalid
// and returns the current gl configuration, including screen width
// and height, which can be used by the client to intelligently
// size display elements
void (*BeginRegistration)( glconfig_t *config );
qhandle_t (*RegisterModel)( const char *name );
qhandle_t (*RegisterSkin)( const char *name );
qhandle_t (*RegisterShader)( const char *name );
qhandle_t (*RegisterShaderNoMip)( const char *name );
void (*LoadWorld)( const char *name );
// the vis data is a large enough block of data that we go to the trouble
// of sharing it with the clipmodel subsystem
void (*SetWorldVisData)( const byte *vis );
// EndRegistration will draw a tiny polygon with each texture, forcing
// them to be loaded into card memory
void (*EndRegistration)( void );
// a scene is built up by calls to R_ClearScene and the various R_Add functions.
// Nothing is drawn until R_RenderScene is called.
void (*ClearScene)( void );
void (*AddRefEntityToScene)( const refEntity_t *re );
void (*AddPolyToScene)( qhandle_t hShader , int numVerts, const polyVert_t *verts, int num );
int (*LightForPoint)( vec3_t point, vec3_t ambientLight, vec3_t directedLight, vec3_t lightDir );
void (*AddLightToScene)( const vec3_t org, float intensity, float r, float g, float b );
void (*AddAdditiveLightToScene)( const vec3_t org, float intensity, float r, float g, float b );
void (*RenderScene)( const refdef_t *fd );
void (*SetColor)( const float *rgba ); // NULL = 1,1,1,1
void (*DrawStretchPic) ( float x, float y, float w, float h,
float s1, float t1, float s2, float t2, qhandle_t hShader ); // 0 = white
// Draw images for cinematic rendering, pass as 32 bit rgba
void (*DrawStretchRaw) (int x, int y, int w, int h, int cols, int rows, const byte *data, int client, qboolean dirty);
void (*UploadCinematic) (int w, int h, int cols, int rows, const byte *data, int client, qboolean dirty);
void (*BeginFrame)( stereoFrame_t stereoFrame );
// if the pointers are not NULL, timing info will be returned
void (*EndFrame)( int *frontEndMsec, int *backEndMsec );
int (*MarkFragments)( int numPoints, const vec3_t *points, const vec3_t projection,
int maxPoints, vec3_t pointBuffer, int maxFragments, markFragment_t *fragmentBuffer );
int (*LerpTag)( orientation_t *tag, qhandle_t model, int startFrame, int endFrame,
float frac, const char *tagName );
void (*ModelBounds)( qhandle_t model, vec3_t mins, vec3_t maxs );
#ifdef __USEA3D
void (*A3D_RenderGeometry) (void *pVoidA3D, void *pVoidGeom, void *pVoidMat, void *pVoidGeomStatus);
#endif
void (*RegisterFont)(const char *fontName, int pointSize, fontInfo_t *font);
void (*RemapShader)(const char *oldShader, const char *newShader, const char *offsetTime);
qboolean (*GetEntityToken)( char *buffer, int size );
qboolean (*inPVS)( const vec3_t p1, const vec3_t p2 );
} refexport_t;
//
// these are the functions imported by the refresh module
//
typedef struct {
// print message on the local console
void (QDECL *Printf)( int printLevel, const char *fmt, ...);
// abort the game
void (QDECL *Error)( int errorLevel, const char *fmt, ...);
// milliseconds should only be used for profiling, never
// for anything game related. Get time from the refdef
int (*Milliseconds)( void );
// stack based memory allocation for per-level things that
// won't be freed
#ifdef HUNK_DEBUG
void *(*Hunk_AllocDebug)( int size, ha_pref pref, char *label, char *file, int line );
#else
void *(*Hunk_Alloc)( int size, ha_pref pref );
#endif
void *(*Hunk_AllocateTempMemory)( int size );
void (*Hunk_FreeTempMemory)( void *block );
// dynamic memory allocator for things that need to be freed
void *(*Malloc)( int bytes );
void (*Free)( void *buf );
cvar_t *(*Cvar_Get)( const char *name, const char *value, int flags );
void (*Cvar_Set)( const char *name, const char *value );
void (*Cmd_AddCommand)( const char *name, void(*cmd)(void) );
void (*Cmd_RemoveCommand)( const char *name );
int (*Cmd_Argc) (void);
char *(*Cmd_Argv) (int i);
void (*Cmd_ExecuteText) (int exec_when, const char *text);
// visualization for debugging collision detection
void (*CM_DrawDebugSurface)( void (*drawPoly)(int color, int numPoints, float *points) );
// a -1 return means the file does not exist
// NULL can be passed for buf to just determine existance
int (*FS_FileIsInPAK)( const char *name, int *pCheckSum );
int (*FS_ReadFile)( const char *name, void **buf );
void (*FS_FreeFile)( void *buf );
char ** (*FS_ListFiles)( const char *name, const char *extension, int *numfilesfound );
void (*FS_FreeFileList)( char **filelist );
void (*FS_WriteFile)( const char *qpath, const void *buffer, int size );
qboolean (*FS_FileExists)( const char *file );
// cinematic stuff
void (*CIN_UploadCinematic)(int handle);
int (*CIN_PlayCinematic)( const char *arg0, int xpos, int ypos, int width, int height, int bits);
e_status (*CIN_RunCinematic) (int handle);
} refimport_t;
// this is the only function actually exported at the linker level
// If the module can't init to a valid rendering state, NULL will be
// returned.
refexport_t*GetRefAPI( int apiVersion, refimport_t *rimp );
#endif // __TR_PUBLIC_H

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/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.
This file is part of Quake III Arena source code.
Quake III Arena source code is free software; you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
Quake III Arena source code is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Foobar; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
===========================================================================
*/
#include "tr_local.h"
int r_firstSceneDrawSurf;
int r_numdlights;
int r_firstSceneDlight;
int r_numentities;
int r_firstSceneEntity;
int r_numpolys;
int r_firstScenePoly;
int r_numpolyverts;
/*
====================
R_ToggleSmpFrame
====================
*/
void R_ToggleSmpFrame( void ) {
if ( r_smp->integer ) {
// use the other buffers next frame, because another CPU
// may still be rendering into the current ones
tr.smpFrame ^= 1;
} else {
tr.smpFrame = 0;
}
backEndData[tr.smpFrame]->commands.used = 0;
r_firstSceneDrawSurf = 0;
r_numdlights = 0;
r_firstSceneDlight = 0;
r_numentities = 0;
r_firstSceneEntity = 0;
r_numpolys = 0;
r_firstScenePoly = 0;
r_numpolyverts = 0;
}
/*
====================
RE_ClearScene
====================
*/
void RE_ClearScene( void ) {
r_firstSceneDlight = r_numdlights;
r_firstSceneEntity = r_numentities;
r_firstScenePoly = r_numpolys;
}
/*
===========================================================================
DISCRETE POLYS
===========================================================================
*/
/*
=====================
R_AddPolygonSurfaces
Adds all the scene's polys into this view's drawsurf list
=====================
*/
void R_AddPolygonSurfaces( void ) {
int i;
shader_t *sh;
srfPoly_t *poly;
tr.currentEntityNum = ENTITYNUM_WORLD;
tr.shiftedEntityNum = tr.currentEntityNum << QSORT_ENTITYNUM_SHIFT;
for ( i = 0, poly = tr.refdef.polys; i < tr.refdef.numPolys ; i++, poly++ ) {
sh = R_GetShaderByHandle( poly->hShader );
R_AddDrawSurf( ( void * )poly, sh, poly->fogIndex, qfalse );
}
}
/*
=====================
RE_AddPolyToScene
=====================
*/
void RE_AddPolyToScene( qhandle_t hShader, int numVerts, const polyVert_t *verts, int numPolys ) {
srfPoly_t *poly;
int i, j;
int fogIndex;
fog_t *fog;
vec3_t bounds[2];
if ( !tr.registered ) {
return;
}
if ( !hShader ) {
ri.Printf( PRINT_WARNING, "WARNING: RE_AddPolyToScene: NULL poly shader\n");
return;
}
for ( j = 0; j < numPolys; j++ ) {
if ( r_numpolyverts + numVerts > max_polyverts || r_numpolys >= max_polys ) {
/*
NOTE TTimo this was initially a PRINT_WARNING
but it happens a lot with high fighting scenes and particles
since we don't plan on changing the const and making for room for those effects
simply cut this message to developer only
*/
ri.Printf( PRINT_DEVELOPER, "WARNING: RE_AddPolyToScene: r_max_polys or r_max_polyverts reached\n");
return;
}
poly = &backEndData[tr.smpFrame]->polys[r_numpolys];
poly->surfaceType = SF_POLY;
poly->hShader = hShader;
poly->numVerts = numVerts;
poly->verts = &backEndData[tr.smpFrame]->polyVerts[r_numpolyverts];
Com_Memcpy( poly->verts, &verts[numVerts*j], numVerts * sizeof( *verts ) );
if ( glConfig.hardwareType == GLHW_RAGEPRO ) {
poly->verts->modulate[0] = 255;
poly->verts->modulate[1] = 255;
poly->verts->modulate[2] = 255;
poly->verts->modulate[3] = 255;
}
// done.
r_numpolys++;
r_numpolyverts += numVerts;
// if no world is loaded
if ( tr.world == NULL ) {
fogIndex = 0;
}
// see if it is in a fog volume
else if ( tr.world->numfogs == 1 ) {
fogIndex = 0;
} else {
// find which fog volume the poly is in
VectorCopy( poly->verts[0].xyz, bounds[0] );
VectorCopy( poly->verts[0].xyz, bounds[1] );
for ( i = 1 ; i < poly->numVerts ; i++ ) {
AddPointToBounds( poly->verts[i].xyz, bounds[0], bounds[1] );
}
for ( fogIndex = 1 ; fogIndex < tr.world->numfogs ; fogIndex++ ) {
fog = &tr.world->fogs[fogIndex];
if ( bounds[1][0] >= fog->bounds[0][0]
&& bounds[1][1] >= fog->bounds[0][1]
&& bounds[1][2] >= fog->bounds[0][2]
&& bounds[0][0] <= fog->bounds[1][0]
&& bounds[0][1] <= fog->bounds[1][1]
&& bounds[0][2] <= fog->bounds[1][2] ) {
break;
}
}
if ( fogIndex == tr.world->numfogs ) {
fogIndex = 0;
}
}
poly->fogIndex = fogIndex;
}
}
//=================================================================================
/*
=====================
RE_AddRefEntityToScene
=====================
*/
void RE_AddRefEntityToScene( const refEntity_t *ent ) {
if ( !tr.registered ) {
return;
}
// https://zerowing.idsoftware.com/bugzilla/show_bug.cgi?id=402
if ( r_numentities >= ENTITYNUM_WORLD ) {
return;
}
if ( ent->reType < 0 || ent->reType >= RT_MAX_REF_ENTITY_TYPE ) {
ri.Error( ERR_DROP, "RE_AddRefEntityToScene: bad reType %i", ent->reType );
}
backEndData[tr.smpFrame]->entities[r_numentities].e = *ent;
backEndData[tr.smpFrame]->entities[r_numentities].lightingCalculated = qfalse;
r_numentities++;
}
/*
=====================
RE_AddDynamicLightToScene
=====================
*/
void RE_AddDynamicLightToScene( const vec3_t org, float intensity, float r, float g, float b, int additive ) {
dlight_t *dl;
if ( !tr.registered ) {
return;
}
if ( r_numdlights >= MAX_DLIGHTS ) {
return;
}
if ( intensity <= 0 ) {
return;
}
// these cards don't have the correct blend mode
if ( glConfig.hardwareType == GLHW_RIVA128 || glConfig.hardwareType == GLHW_PERMEDIA2 ) {
return;
}
dl = &backEndData[tr.smpFrame]->dlights[r_numdlights++];
VectorCopy (org, dl->origin);
dl->radius = intensity;
dl->color[0] = r;
dl->color[1] = g;
dl->color[2] = b;
dl->additive = additive;
}
/*
=====================
RE_AddLightToScene
=====================
*/
void RE_AddLightToScene( const vec3_t org, float intensity, float r, float g, float b ) {
RE_AddDynamicLightToScene( org, intensity, r, g, b, qfalse );
}
/*
=====================
RE_AddAdditiveLightToScene
=====================
*/
void RE_AddAdditiveLightToScene( const vec3_t org, float intensity, float r, float g, float b ) {
RE_AddDynamicLightToScene( org, intensity, r, g, b, qtrue );
}
/*
@@@@@@@@@@@@@@@@@@@@@
RE_RenderScene
Draw a 3D view into a part of the window, then return
to 2D drawing.
Rendering a scene may require multiple views to be rendered
to handle mirrors,
@@@@@@@@@@@@@@@@@@@@@
*/
void RE_RenderScene( const refdef_t *fd ) {
viewParms_t parms;
int startTime;
if ( !tr.registered ) {
return;
}
GLimp_LogComment( "====== RE_RenderScene =====\n" );
if ( r_norefresh->integer ) {
return;
}
startTime = ri.Milliseconds();
if (!tr.world && !( fd->rdflags & RDF_NOWORLDMODEL ) ) {
ri.Error (ERR_DROP, "R_RenderScene: NULL worldmodel");
}
Com_Memcpy( tr.refdef.text, fd->text, sizeof( tr.refdef.text ) );
tr.refdef.x = fd->x;
tr.refdef.y = fd->y;
tr.refdef.width = fd->width;
tr.refdef.height = fd->height;
tr.refdef.fov_x = fd->fov_x;
tr.refdef.fov_y = fd->fov_y;
VectorCopy( fd->vieworg, tr.refdef.vieworg );
VectorCopy( fd->viewaxis[0], tr.refdef.viewaxis[0] );
VectorCopy( fd->viewaxis[1], tr.refdef.viewaxis[1] );
VectorCopy( fd->viewaxis[2], tr.refdef.viewaxis[2] );
tr.refdef.time = fd->time;
tr.refdef.rdflags = fd->rdflags;
// copy the areamask data over and note if it has changed, which
// will force a reset of the visible leafs even if the view hasn't moved
tr.refdef.areamaskModified = qfalse;
if ( ! (tr.refdef.rdflags & RDF_NOWORLDMODEL) ) {
int areaDiff;
int i;
// compare the area bits
areaDiff = 0;
for (i = 0 ; i < MAX_MAP_AREA_BYTES/4 ; i++) {
areaDiff |= ((int *)tr.refdef.areamask)[i] ^ ((int *)fd->areamask)[i];
((int *)tr.refdef.areamask)[i] = ((int *)fd->areamask)[i];
}
if ( areaDiff ) {
// a door just opened or something
tr.refdef.areamaskModified = qtrue;
}
}
// derived info
tr.refdef.floatTime = tr.refdef.time * 0.001f;
tr.refdef.numDrawSurfs = r_firstSceneDrawSurf;
tr.refdef.drawSurfs = backEndData[tr.smpFrame]->drawSurfs;
tr.refdef.num_entities = r_numentities - r_firstSceneEntity;
tr.refdef.entities = &backEndData[tr.smpFrame]->entities[r_firstSceneEntity];
tr.refdef.num_dlights = r_numdlights - r_firstSceneDlight;
tr.refdef.dlights = &backEndData[tr.smpFrame]->dlights[r_firstSceneDlight];
tr.refdef.numPolys = r_numpolys - r_firstScenePoly;
tr.refdef.polys = &backEndData[tr.smpFrame]->polys[r_firstScenePoly];
// turn off dynamic lighting globally by clearing all the
// dlights if it needs to be disabled or if vertex lighting is enabled
if ( r_dynamiclight->integer == 0 ||
r_vertexLight->integer == 1 ||
glConfig.hardwareType == GLHW_PERMEDIA2 ) {
tr.refdef.num_dlights = 0;
}
// a single frame may have multiple scenes draw inside it --
// a 3D game view, 3D status bar renderings, 3D menus, etc.
// They need to be distinguished by the light flare code, because
// the visibility state for a given surface may be different in
// each scene / view.
tr.frameSceneNum++;
tr.sceneCount++;
// setup view parms for the initial view
//
// set up viewport
// The refdef takes 0-at-the-top y coordinates, so
// convert to GL's 0-at-the-bottom space
//
Com_Memset( &parms, 0, sizeof( parms ) );
parms.viewportX = tr.refdef.x;
parms.viewportY = glConfig.vidHeight - ( tr.refdef.y + tr.refdef.height );
parms.viewportWidth = tr.refdef.width;
parms.viewportHeight = tr.refdef.height;
parms.isPortal = qfalse;
parms.fovX = tr.refdef.fov_x;
parms.fovY = tr.refdef.fov_y;
VectorCopy( fd->vieworg, parms.or.origin );
VectorCopy( fd->viewaxis[0], parms.or.axis[0] );
VectorCopy( fd->viewaxis[1], parms.or.axis[1] );
VectorCopy( fd->viewaxis[2], parms.or.axis[2] );
VectorCopy( fd->vieworg, parms.pvsOrigin );
R_RenderView( &parms );
// the next scene rendered in this frame will tack on after this one
r_firstSceneDrawSurf = tr.refdef.numDrawSurfs;
r_firstSceneEntity = r_numentities;
r_firstSceneDlight = r_numdlights;
r_firstScenePoly = r_numpolys;
tr.frontEndMsec += ri.Milliseconds() - startTime;
}

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/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.
This file is part of Quake III Arena source code.
Quake III Arena source code is free software; you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
Quake III Arena source code is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Foobar; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
===========================================================================
*/
#include "tr_local.h"
/*
for a projection shadow:
point[x] += light vector * ( z - shadow plane )
point[y] +=
point[z] = shadow plane
1 0 light[x] / light[z]
*/
typedef struct {
int i2;
int facing;
} edgeDef_t;
#define MAX_EDGE_DEFS 32
static edgeDef_t edgeDefs[SHADER_MAX_VERTEXES][MAX_EDGE_DEFS];
static int numEdgeDefs[SHADER_MAX_VERTEXES];
static int facing[SHADER_MAX_INDEXES/3];
void R_AddEdgeDef( int i1, int i2, int facing ) {
int c;
c = numEdgeDefs[ i1 ];
if ( c == MAX_EDGE_DEFS ) {
return; // overflow
}
edgeDefs[ i1 ][ c ].i2 = i2;
edgeDefs[ i1 ][ c ].facing = facing;
numEdgeDefs[ i1 ]++;
}
void R_RenderShadowEdges( void ) {
int i;
#if 0
int numTris;
// dumb way -- render every triangle's edges
numTris = tess.numIndexes / 3;
for ( i = 0 ; i < numTris ; i++ ) {
int i1, i2, i3;
if ( !facing[i] ) {
continue;
}
i1 = tess.indexes[ i*3 + 0 ];
i2 = tess.indexes[ i*3 + 1 ];
i3 = tess.indexes[ i*3 + 2 ];
qglBegin( GL_TRIANGLE_STRIP );
qglVertex3fv( tess.xyz[ i1 ] );
qglVertex3fv( tess.xyz[ i1 + tess.numVertexes ] );
qglVertex3fv( tess.xyz[ i2 ] );
qglVertex3fv( tess.xyz[ i2 + tess.numVertexes ] );
qglVertex3fv( tess.xyz[ i3 ] );
qglVertex3fv( tess.xyz[ i3 + tess.numVertexes ] );
qglVertex3fv( tess.xyz[ i1 ] );
qglVertex3fv( tess.xyz[ i1 + tess.numVertexes ] );
qglEnd();
}
#else
int c, c2;
int j, k;
int i2;
int c_edges, c_rejected;
int hit[2];
// an edge is NOT a silhouette edge if its face doesn't face the light,
// or if it has a reverse paired edge that also faces the light.
// A well behaved polyhedron would have exactly two faces for each edge,
// but lots of models have dangling edges or overfanned edges
c_edges = 0;
c_rejected = 0;
for ( i = 0 ; i < tess.numVertexes ; i++ ) {
c = numEdgeDefs[ i ];
for ( j = 0 ; j < c ; j++ ) {
if ( !edgeDefs[ i ][ j ].facing ) {
continue;
}
hit[0] = 0;
hit[1] = 0;
i2 = edgeDefs[ i ][ j ].i2;
c2 = numEdgeDefs[ i2 ];
for ( k = 0 ; k < c2 ; k++ ) {
if ( edgeDefs[ i2 ][ k ].i2 == i ) {
hit[ edgeDefs[ i2 ][ k ].facing ]++;
}
}
// if it doesn't share the edge with another front facing
// triangle, it is a sil edge
if ( hit[ 1 ] == 0 ) {
qglBegin( GL_TRIANGLE_STRIP );
qglVertex3fv( tess.xyz[ i ] );
qglVertex3fv( tess.xyz[ i + tess.numVertexes ] );
qglVertex3fv( tess.xyz[ i2 ] );
qglVertex3fv( tess.xyz[ i2 + tess.numVertexes ] );
qglEnd();
c_edges++;
} else {
c_rejected++;
}
}
}
#endif
}
/*
=================
RB_ShadowTessEnd
triangleFromEdge[ v1 ][ v2 ]
set triangle from edge( v1, v2, tri )
if ( facing[ triangleFromEdge[ v1 ][ v2 ] ] && !facing[ triangleFromEdge[ v2 ][ v1 ] ) {
}
=================
*/
void RB_ShadowTessEnd( void ) {
int i;
int numTris;
vec3_t lightDir;
// we can only do this if we have enough space in the vertex buffers
if ( tess.numVertexes >= SHADER_MAX_VERTEXES / 2 ) {
return;
}
if ( glConfig.stencilBits < 4 ) {
return;
}
VectorCopy( backEnd.currentEntity->lightDir, lightDir );
// project vertexes away from light direction
for ( i = 0 ; i < tess.numVertexes ; i++ ) {
VectorMA( tess.xyz[i], -512, lightDir, tess.xyz[i+tess.numVertexes] );
}
// decide which triangles face the light
Com_Memset( numEdgeDefs, 0, 4 * tess.numVertexes );
numTris = tess.numIndexes / 3;
for ( i = 0 ; i < numTris ; i++ ) {
int i1, i2, i3;
vec3_t d1, d2, normal;
float *v1, *v2, *v3;
float d;
i1 = tess.indexes[ i*3 + 0 ];
i2 = tess.indexes[ i*3 + 1 ];
i3 = tess.indexes[ i*3 + 2 ];
v1 = tess.xyz[ i1 ];
v2 = tess.xyz[ i2 ];
v3 = tess.xyz[ i3 ];
VectorSubtract( v2, v1, d1 );
VectorSubtract( v3, v1, d2 );
CrossProduct( d1, d2, normal );
d = DotProduct( normal, lightDir );
if ( d > 0 ) {
facing[ i ] = 1;
} else {
facing[ i ] = 0;
}
// create the edges
R_AddEdgeDef( i1, i2, facing[ i ] );
R_AddEdgeDef( i2, i3, facing[ i ] );
R_AddEdgeDef( i3, i1, facing[ i ] );
}
// draw the silhouette edges
GL_Bind( tr.whiteImage );
qglEnable( GL_CULL_FACE );
GL_State( GLS_SRCBLEND_ONE | GLS_DSTBLEND_ZERO );
qglColor3f( 0.2f, 0.2f, 0.2f );
// don't write to the color buffer
qglColorMask( GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE );
qglEnable( GL_STENCIL_TEST );
qglStencilFunc( GL_ALWAYS, 1, 255 );
// mirrors have the culling order reversed
if ( backEnd.viewParms.isMirror ) {
qglCullFace( GL_FRONT );
qglStencilOp( GL_KEEP, GL_KEEP, GL_INCR );
R_RenderShadowEdges();
qglCullFace( GL_BACK );
qglStencilOp( GL_KEEP, GL_KEEP, GL_DECR );
R_RenderShadowEdges();
} else {
qglCullFace( GL_BACK );
qglStencilOp( GL_KEEP, GL_KEEP, GL_INCR );
R_RenderShadowEdges();
qglCullFace( GL_FRONT );
qglStencilOp( GL_KEEP, GL_KEEP, GL_DECR );
R_RenderShadowEdges();
}
// reenable writing to the color buffer
qglColorMask( GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE );
}
/*
=================
RB_ShadowFinish
Darken everything that is is a shadow volume.
We have to delay this until everything has been shadowed,
because otherwise shadows from different body parts would
overlap and double darken.
=================
*/
void RB_ShadowFinish( void ) {
if ( r_shadows->integer != 2 ) {
return;
}
if ( glConfig.stencilBits < 4 ) {
return;
}
qglEnable( GL_STENCIL_TEST );
qglStencilFunc( GL_NOTEQUAL, 0, 255 );
qglDisable (GL_CLIP_PLANE0);
qglDisable (GL_CULL_FACE);
GL_Bind( tr.whiteImage );
qglLoadIdentity ();
qglColor3f( 0.6f, 0.6f, 0.6f );
GL_State( GLS_DEPTHMASK_TRUE | GLS_SRCBLEND_DST_COLOR | GLS_DSTBLEND_ZERO );
// qglColor3f( 1, 0, 0 );
// GL_State( GLS_DEPTHMASK_TRUE | GLS_SRCBLEND_ONE | GLS_DSTBLEND_ZERO );
qglBegin( GL_QUADS );
qglVertex3f( -100, 100, -10 );
qglVertex3f( 100, 100, -10 );
qglVertex3f( 100, -100, -10 );
qglVertex3f( -100, -100, -10 );
qglEnd ();
qglColor4f(1,1,1,1);
qglDisable( GL_STENCIL_TEST );
}
/*
=================
RB_ProjectionShadowDeform
=================
*/
void RB_ProjectionShadowDeform( void ) {
float *xyz;
int i;
float h;
vec3_t ground;
vec3_t light;
float groundDist;
float d;
vec3_t lightDir;
xyz = ( float * ) tess.xyz;
ground[0] = backEnd.or.axis[0][2];
ground[1] = backEnd.or.axis[1][2];
ground[2] = backEnd.or.axis[2][2];
groundDist = backEnd.or.origin[2] - backEnd.currentEntity->e.shadowPlane;
VectorCopy( backEnd.currentEntity->lightDir, lightDir );
d = DotProduct( lightDir, ground );
// don't let the shadows get too long or go negative
if ( d < 0.5 ) {
VectorMA( lightDir, (0.5 - d), ground, lightDir );
d = DotProduct( lightDir, ground );
}
d = 1.0 / d;
light[0] = lightDir[0] * d;
light[1] = lightDir[1] * d;
light[2] = lightDir[2] * d;
for ( i = 0; i < tess.numVertexes; i++, xyz += 4 ) {
h = DotProduct( xyz, ground ) + groundDist;
xyz[0] -= light[0] * h;
xyz[1] -= light[1] * h;
xyz[2] -= light[2] * h;
}
}

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/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.
This file is part of Quake III Arena source code.
Quake III Arena source code is free software; you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
Quake III Arena source code is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Foobar; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
===========================================================================
*/
// tr_sky.c
#include "tr_local.h"
#define SKY_SUBDIVISIONS 8
#define HALF_SKY_SUBDIVISIONS (SKY_SUBDIVISIONS/2)
static float s_cloudTexCoords[6][SKY_SUBDIVISIONS+1][SKY_SUBDIVISIONS+1][2];
static float s_cloudTexP[6][SKY_SUBDIVISIONS+1][SKY_SUBDIVISIONS+1];
/*
===================================================================================
POLYGON TO BOX SIDE PROJECTION
===================================================================================
*/
static vec3_t sky_clip[6] =
{
{1,1,0},
{1,-1,0},
{0,-1,1},
{0,1,1},
{1,0,1},
{-1,0,1}
};
static float sky_mins[2][6], sky_maxs[2][6];
static float sky_min, sky_max;
/*
================
AddSkyPolygon
================
*/
static void AddSkyPolygon (int nump, vec3_t vecs)
{
int i,j;
vec3_t v, av;
float s, t, dv;
int axis;
float *vp;
// s = [0]/[2], t = [1]/[2]
static int vec_to_st[6][3] =
{
{-2,3,1},
{2,3,-1},
{1,3,2},
{-1,3,-2},
{-2,-1,3},
{-2,1,-3}
// {-1,2,3},
// {1,2,-3}
};
// decide which face it maps to
VectorCopy (vec3_origin, v);
for (i=0, vp=vecs ; i<nump ; i++, vp+=3)
{
VectorAdd (vp, v, v);
}
av[0] = fabs(v[0]);
av[1] = fabs(v[1]);
av[2] = fabs(v[2]);
if (av[0] > av[1] && av[0] > av[2])
{
if (v[0] < 0)
axis = 1;
else
axis = 0;
}
else if (av[1] > av[2] && av[1] > av[0])
{
if (v[1] < 0)
axis = 3;
else
axis = 2;
}
else
{
if (v[2] < 0)
axis = 5;
else
axis = 4;
}
// project new texture coords
for (i=0 ; i<nump ; i++, vecs+=3)
{
j = vec_to_st[axis][2];
if (j > 0)
dv = vecs[j - 1];
else
dv = -vecs[-j - 1];
if (dv < 0.001)
continue; // don't divide by zero
j = vec_to_st[axis][0];
if (j < 0)
s = -vecs[-j -1] / dv;
else
s = vecs[j-1] / dv;
j = vec_to_st[axis][1];
if (j < 0)
t = -vecs[-j -1] / dv;
else
t = vecs[j-1] / dv;
if (s < sky_mins[0][axis])
sky_mins[0][axis] = s;
if (t < sky_mins[1][axis])
sky_mins[1][axis] = t;
if (s > sky_maxs[0][axis])
sky_maxs[0][axis] = s;
if (t > sky_maxs[1][axis])
sky_maxs[1][axis] = t;
}
}
#define ON_EPSILON 0.1f // point on plane side epsilon
#define MAX_CLIP_VERTS 64
/*
================
ClipSkyPolygon
================
*/
static void ClipSkyPolygon (int nump, vec3_t vecs, int stage)
{
float *norm;
float *v;
qboolean front, back;
float d, e;
float dists[MAX_CLIP_VERTS];
int sides[MAX_CLIP_VERTS];
vec3_t newv[2][MAX_CLIP_VERTS];
int newc[2];
int i, j;
if (nump > MAX_CLIP_VERTS-2)
ri.Error (ERR_DROP, "ClipSkyPolygon: MAX_CLIP_VERTS");
if (stage == 6)
{ // fully clipped, so draw it
AddSkyPolygon (nump, vecs);
return;
}
front = back = qfalse;
norm = sky_clip[stage];
for (i=0, v = vecs ; i<nump ; i++, v+=3)
{
d = DotProduct (v, norm);
if (d > ON_EPSILON)
{
front = qtrue;
sides[i] = SIDE_FRONT;
}
else if (d < -ON_EPSILON)
{
back = qtrue;
sides[i] = SIDE_BACK;
}
else
sides[i] = SIDE_ON;
dists[i] = d;
}
if (!front || !back)
{ // not clipped
ClipSkyPolygon (nump, vecs, stage+1);
return;
}
// clip it
sides[i] = sides[0];
dists[i] = dists[0];
VectorCopy (vecs, (vecs+(i*3)) );
newc[0] = newc[1] = 0;
for (i=0, v = vecs ; i<nump ; i++, v+=3)
{
switch (sides[i])
{
case SIDE_FRONT:
VectorCopy (v, newv[0][newc[0]]);
newc[0]++;
break;
case SIDE_BACK:
VectorCopy (v, newv[1][newc[1]]);
newc[1]++;
break;
case SIDE_ON:
VectorCopy (v, newv[0][newc[0]]);
newc[0]++;
VectorCopy (v, newv[1][newc[1]]);
newc[1]++;
break;
}
if (sides[i] == SIDE_ON || sides[i+1] == SIDE_ON || sides[i+1] == sides[i])
continue;
d = dists[i] / (dists[i] - dists[i+1]);
for (j=0 ; j<3 ; j++)
{
e = v[j] + d*(v[j+3] - v[j]);
newv[0][newc[0]][j] = e;
newv[1][newc[1]][j] = e;
}
newc[0]++;
newc[1]++;
}
// continue
ClipSkyPolygon (newc[0], newv[0][0], stage+1);
ClipSkyPolygon (newc[1], newv[1][0], stage+1);
}
/*
==============
ClearSkyBox
==============
*/
static void ClearSkyBox (void) {
int i;
for (i=0 ; i<6 ; i++) {
sky_mins[0][i] = sky_mins[1][i] = 9999;
sky_maxs[0][i] = sky_maxs[1][i] = -9999;
}
}
/*
================
RB_ClipSkyPolygons
================
*/
void RB_ClipSkyPolygons( shaderCommands_t *input )
{
vec3_t p[5]; // need one extra point for clipping
int i, j;
ClearSkyBox();
for ( i = 0; i < input->numIndexes; i += 3 )
{
for (j = 0 ; j < 3 ; j++)
{
VectorSubtract( input->xyz[input->indexes[i+j]],
backEnd.viewParms.or.origin,
p[j] );
}
ClipSkyPolygon( 3, p[0], 0 );
}
}
/*
===================================================================================
CLOUD VERTEX GENERATION
===================================================================================
*/
/*
** MakeSkyVec
**
** Parms: s, t range from -1 to 1
*/
static void MakeSkyVec( float s, float t, int axis, float outSt[2], vec3_t outXYZ )
{
// 1 = s, 2 = t, 3 = 2048
static int st_to_vec[6][3] =
{
{3,-1,2},
{-3,1,2},
{1,3,2},
{-1,-3,2},
{-2,-1,3}, // 0 degrees yaw, look straight up
{2,-1,-3} // look straight down
};
vec3_t b;
int j, k;
float boxSize;
boxSize = backEnd.viewParms.zFar / 1.75; // div sqrt(3)
b[0] = s*boxSize;
b[1] = t*boxSize;
b[2] = boxSize;
for (j=0 ; j<3 ; j++)
{
k = st_to_vec[axis][j];
if (k < 0)
{
outXYZ[j] = -b[-k - 1];
}
else
{
outXYZ[j] = b[k - 1];
}
}
// avoid bilerp seam
s = (s+1)*0.5;
t = (t+1)*0.5;
if (s < sky_min)
{
s = sky_min;
}
else if (s > sky_max)
{
s = sky_max;
}
if (t < sky_min)
{
t = sky_min;
}
else if (t > sky_max)
{
t = sky_max;
}
t = 1.0 - t;
if ( outSt )
{
outSt[0] = s;
outSt[1] = t;
}
}
static int sky_texorder[6] = {0,2,1,3,4,5};
static vec3_t s_skyPoints[SKY_SUBDIVISIONS+1][SKY_SUBDIVISIONS+1];
static float s_skyTexCoords[SKY_SUBDIVISIONS+1][SKY_SUBDIVISIONS+1][2];
static void DrawSkySide( struct image_s *image, const int mins[2], const int maxs[2] )
{
int s, t;
GL_Bind( image );
for ( t = mins[1]+HALF_SKY_SUBDIVISIONS; t < maxs[1]+HALF_SKY_SUBDIVISIONS; t++ )
{
qglBegin( GL_TRIANGLE_STRIP );
for ( s = mins[0]+HALF_SKY_SUBDIVISIONS; s <= maxs[0]+HALF_SKY_SUBDIVISIONS; s++ )
{
qglTexCoord2fv( s_skyTexCoords[t][s] );
qglVertex3fv( s_skyPoints[t][s] );
qglTexCoord2fv( s_skyTexCoords[t+1][s] );
qglVertex3fv( s_skyPoints[t+1][s] );
}
qglEnd();
}
}
static void DrawSkyBox( shader_t *shader )
{
int i;
sky_min = 0;
sky_max = 1;
Com_Memset( s_skyTexCoords, 0, sizeof( s_skyTexCoords ) );
for (i=0 ; i<6 ; i++)
{
int sky_mins_subd[2], sky_maxs_subd[2];
int s, t;
sky_mins[0][i] = floor( sky_mins[0][i] * HALF_SKY_SUBDIVISIONS ) / HALF_SKY_SUBDIVISIONS;
sky_mins[1][i] = floor( sky_mins[1][i] * HALF_SKY_SUBDIVISIONS ) / HALF_SKY_SUBDIVISIONS;
sky_maxs[0][i] = ceil( sky_maxs[0][i] * HALF_SKY_SUBDIVISIONS ) / HALF_SKY_SUBDIVISIONS;
sky_maxs[1][i] = ceil( sky_maxs[1][i] * HALF_SKY_SUBDIVISIONS ) / HALF_SKY_SUBDIVISIONS;
if ( ( sky_mins[0][i] >= sky_maxs[0][i] ) ||
( sky_mins[1][i] >= sky_maxs[1][i] ) )
{
continue;
}
sky_mins_subd[0] = sky_mins[0][i] * HALF_SKY_SUBDIVISIONS;
sky_mins_subd[1] = sky_mins[1][i] * HALF_SKY_SUBDIVISIONS;
sky_maxs_subd[0] = sky_maxs[0][i] * HALF_SKY_SUBDIVISIONS;
sky_maxs_subd[1] = sky_maxs[1][i] * HALF_SKY_SUBDIVISIONS;
if ( sky_mins_subd[0] < -HALF_SKY_SUBDIVISIONS )
sky_mins_subd[0] = -HALF_SKY_SUBDIVISIONS;
else if ( sky_mins_subd[0] > HALF_SKY_SUBDIVISIONS )
sky_mins_subd[0] = HALF_SKY_SUBDIVISIONS;
if ( sky_mins_subd[1] < -HALF_SKY_SUBDIVISIONS )
sky_mins_subd[1] = -HALF_SKY_SUBDIVISIONS;
else if ( sky_mins_subd[1] > HALF_SKY_SUBDIVISIONS )
sky_mins_subd[1] = HALF_SKY_SUBDIVISIONS;
if ( sky_maxs_subd[0] < -HALF_SKY_SUBDIVISIONS )
sky_maxs_subd[0] = -HALF_SKY_SUBDIVISIONS;
else if ( sky_maxs_subd[0] > HALF_SKY_SUBDIVISIONS )
sky_maxs_subd[0] = HALF_SKY_SUBDIVISIONS;
if ( sky_maxs_subd[1] < -HALF_SKY_SUBDIVISIONS )
sky_maxs_subd[1] = -HALF_SKY_SUBDIVISIONS;
else if ( sky_maxs_subd[1] > HALF_SKY_SUBDIVISIONS )
sky_maxs_subd[1] = HALF_SKY_SUBDIVISIONS;
//
// iterate through the subdivisions
//
for ( t = sky_mins_subd[1]+HALF_SKY_SUBDIVISIONS; t <= sky_maxs_subd[1]+HALF_SKY_SUBDIVISIONS; t++ )
{
for ( s = sky_mins_subd[0]+HALF_SKY_SUBDIVISIONS; s <= sky_maxs_subd[0]+HALF_SKY_SUBDIVISIONS; s++ )
{
MakeSkyVec( ( s - HALF_SKY_SUBDIVISIONS ) / ( float ) HALF_SKY_SUBDIVISIONS,
( t - HALF_SKY_SUBDIVISIONS ) / ( float ) HALF_SKY_SUBDIVISIONS,
i,
s_skyTexCoords[t][s],
s_skyPoints[t][s] );
}
}
DrawSkySide( shader->sky.outerbox[sky_texorder[i]],
sky_mins_subd,
sky_maxs_subd );
}
}
static void FillCloudySkySide( const int mins[2], const int maxs[2], qboolean addIndexes )
{
int s, t;
int vertexStart = tess.numVertexes;
int tHeight, sWidth;
tHeight = maxs[1] - mins[1] + 1;
sWidth = maxs[0] - mins[0] + 1;
for ( t = mins[1]+HALF_SKY_SUBDIVISIONS; t <= maxs[1]+HALF_SKY_SUBDIVISIONS; t++ )
{
for ( s = mins[0]+HALF_SKY_SUBDIVISIONS; s <= maxs[0]+HALF_SKY_SUBDIVISIONS; s++ )
{
VectorAdd( s_skyPoints[t][s], backEnd.viewParms.or.origin, tess.xyz[tess.numVertexes] );
tess.texCoords[tess.numVertexes][0][0] = s_skyTexCoords[t][s][0];
tess.texCoords[tess.numVertexes][0][1] = s_skyTexCoords[t][s][1];
tess.numVertexes++;
if ( tess.numVertexes >= SHADER_MAX_VERTEXES )
{
ri.Error( ERR_DROP, "SHADER_MAX_VERTEXES hit in FillCloudySkySide()\n" );
}
}
}
// only add indexes for one pass, otherwise it would draw multiple times for each pass
if ( addIndexes ) {
for ( t = 0; t < tHeight-1; t++ )
{
for ( s = 0; s < sWidth-1; s++ )
{
tess.indexes[tess.numIndexes] = vertexStart + s + t * ( sWidth );
tess.numIndexes++;
tess.indexes[tess.numIndexes] = vertexStart + s + ( t + 1 ) * ( sWidth );
tess.numIndexes++;
tess.indexes[tess.numIndexes] = vertexStart + s + 1 + t * ( sWidth );
tess.numIndexes++;
tess.indexes[tess.numIndexes] = vertexStart + s + ( t + 1 ) * ( sWidth );
tess.numIndexes++;
tess.indexes[tess.numIndexes] = vertexStart + s + 1 + ( t + 1 ) * ( sWidth );
tess.numIndexes++;
tess.indexes[tess.numIndexes] = vertexStart + s + 1 + t * ( sWidth );
tess.numIndexes++;
}
}
}
}
static void FillCloudBox( const shader_t *shader, int stage )
{
int i;
for ( i =0; i < 6; i++ )
{
int sky_mins_subd[2], sky_maxs_subd[2];
int s, t;
float MIN_T;
if ( 1 ) // FIXME? shader->sky.fullClouds )
{
MIN_T = -HALF_SKY_SUBDIVISIONS;
// still don't want to draw the bottom, even if fullClouds
if ( i == 5 )
continue;
}
else
{
switch( i )
{
case 0:
case 1:
case 2:
case 3:
MIN_T = -1;
break;
case 5:
// don't draw clouds beneath you
continue;
case 4: // top
default:
MIN_T = -HALF_SKY_SUBDIVISIONS;
break;
}
}
sky_mins[0][i] = floor( sky_mins[0][i] * HALF_SKY_SUBDIVISIONS ) / HALF_SKY_SUBDIVISIONS;
sky_mins[1][i] = floor( sky_mins[1][i] * HALF_SKY_SUBDIVISIONS ) / HALF_SKY_SUBDIVISIONS;
sky_maxs[0][i] = ceil( sky_maxs[0][i] * HALF_SKY_SUBDIVISIONS ) / HALF_SKY_SUBDIVISIONS;
sky_maxs[1][i] = ceil( sky_maxs[1][i] * HALF_SKY_SUBDIVISIONS ) / HALF_SKY_SUBDIVISIONS;
if ( ( sky_mins[0][i] >= sky_maxs[0][i] ) ||
( sky_mins[1][i] >= sky_maxs[1][i] ) )
{
continue;
}
sky_mins_subd[0] = myftol( sky_mins[0][i] * HALF_SKY_SUBDIVISIONS );
sky_mins_subd[1] = myftol( sky_mins[1][i] * HALF_SKY_SUBDIVISIONS );
sky_maxs_subd[0] = myftol( sky_maxs[0][i] * HALF_SKY_SUBDIVISIONS );
sky_maxs_subd[1] = myftol( sky_maxs[1][i] * HALF_SKY_SUBDIVISIONS );
if ( sky_mins_subd[0] < -HALF_SKY_SUBDIVISIONS )
sky_mins_subd[0] = -HALF_SKY_SUBDIVISIONS;
else if ( sky_mins_subd[0] > HALF_SKY_SUBDIVISIONS )
sky_mins_subd[0] = HALF_SKY_SUBDIVISIONS;
if ( sky_mins_subd[1] < MIN_T )
sky_mins_subd[1] = MIN_T;
else if ( sky_mins_subd[1] > HALF_SKY_SUBDIVISIONS )
sky_mins_subd[1] = HALF_SKY_SUBDIVISIONS;
if ( sky_maxs_subd[0] < -HALF_SKY_SUBDIVISIONS )
sky_maxs_subd[0] = -HALF_SKY_SUBDIVISIONS;
else if ( sky_maxs_subd[0] > HALF_SKY_SUBDIVISIONS )
sky_maxs_subd[0] = HALF_SKY_SUBDIVISIONS;
if ( sky_maxs_subd[1] < MIN_T )
sky_maxs_subd[1] = MIN_T;
else if ( sky_maxs_subd[1] > HALF_SKY_SUBDIVISIONS )
sky_maxs_subd[1] = HALF_SKY_SUBDIVISIONS;
//
// iterate through the subdivisions
//
for ( t = sky_mins_subd[1]+HALF_SKY_SUBDIVISIONS; t <= sky_maxs_subd[1]+HALF_SKY_SUBDIVISIONS; t++ )
{
for ( s = sky_mins_subd[0]+HALF_SKY_SUBDIVISIONS; s <= sky_maxs_subd[0]+HALF_SKY_SUBDIVISIONS; s++ )
{
MakeSkyVec( ( s - HALF_SKY_SUBDIVISIONS ) / ( float ) HALF_SKY_SUBDIVISIONS,
( t - HALF_SKY_SUBDIVISIONS ) / ( float ) HALF_SKY_SUBDIVISIONS,
i,
NULL,
s_skyPoints[t][s] );
s_skyTexCoords[t][s][0] = s_cloudTexCoords[i][t][s][0];
s_skyTexCoords[t][s][1] = s_cloudTexCoords[i][t][s][1];
}
}
// only add indexes for first stage
FillCloudySkySide( sky_mins_subd, sky_maxs_subd, ( stage == 0 ) );
}
}
/*
** R_BuildCloudData
*/
void R_BuildCloudData( shaderCommands_t *input )
{
int i;
shader_t *shader;
shader = input->shader;
assert( shader->isSky );
sky_min = 1.0 / 256.0f; // FIXME: not correct?
sky_max = 255.0 / 256.0f;
// set up for drawing
tess.numIndexes = 0;
tess.numVertexes = 0;
if ( input->shader->sky.cloudHeight )
{
for ( i = 0; i < MAX_SHADER_STAGES; i++ )
{
if ( !tess.xstages[i] ) {
break;
}
FillCloudBox( input->shader, i );
}
}
}
/*
** R_InitSkyTexCoords
** Called when a sky shader is parsed
*/
#define SQR( a ) ((a)*(a))
void R_InitSkyTexCoords( float heightCloud )
{
int i, s, t;
float radiusWorld = 4096;
float p;
float sRad, tRad;
vec3_t skyVec;
vec3_t v;
// init zfar so MakeSkyVec works even though
// a world hasn't been bounded
backEnd.viewParms.zFar = 1024;
for ( i = 0; i < 6; i++ )
{
for ( t = 0; t <= SKY_SUBDIVISIONS; t++ )
{
for ( s = 0; s <= SKY_SUBDIVISIONS; s++ )
{
// compute vector from view origin to sky side integral point
MakeSkyVec( ( s - HALF_SKY_SUBDIVISIONS ) / ( float ) HALF_SKY_SUBDIVISIONS,
( t - HALF_SKY_SUBDIVISIONS ) / ( float ) HALF_SKY_SUBDIVISIONS,
i,
NULL,
skyVec );
// compute parametric value 'p' that intersects with cloud layer
p = ( 1.0f / ( 2 * DotProduct( skyVec, skyVec ) ) ) *
( -2 * skyVec[2] * radiusWorld +
2 * sqrt( SQR( skyVec[2] ) * SQR( radiusWorld ) +
2 * SQR( skyVec[0] ) * radiusWorld * heightCloud +
SQR( skyVec[0] ) * SQR( heightCloud ) +
2 * SQR( skyVec[1] ) * radiusWorld * heightCloud +
SQR( skyVec[1] ) * SQR( heightCloud ) +
2 * SQR( skyVec[2] ) * radiusWorld * heightCloud +
SQR( skyVec[2] ) * SQR( heightCloud ) ) );
s_cloudTexP[i][t][s] = p;
// compute intersection point based on p
VectorScale( skyVec, p, v );
v[2] += radiusWorld;
// compute vector from world origin to intersection point 'v'
VectorNormalize( v );
sRad = Q_acos( v[0] );
tRad = Q_acos( v[1] );
s_cloudTexCoords[i][t][s][0] = sRad;
s_cloudTexCoords[i][t][s][1] = tRad;
}
}
}
}
//======================================================================================
/*
** RB_DrawSun
*/
void RB_DrawSun( void ) {
float size;
float dist;
vec3_t origin, vec1, vec2;
vec3_t temp;
if ( !backEnd.skyRenderedThisView ) {
return;
}
if ( !r_drawSun->integer ) {
return;
}
qglLoadMatrixf( backEnd.viewParms.world.modelMatrix );
qglTranslatef (backEnd.viewParms.or.origin[0], backEnd.viewParms.or.origin[1], backEnd.viewParms.or.origin[2]);
dist = backEnd.viewParms.zFar / 1.75; // div sqrt(3)
size = dist * 0.4;
VectorScale( tr.sunDirection, dist, origin );
PerpendicularVector( vec1, tr.sunDirection );
CrossProduct( tr.sunDirection, vec1, vec2 );
VectorScale( vec1, size, vec1 );
VectorScale( vec2, size, vec2 );
// farthest depth range
qglDepthRange( 1.0, 1.0 );
// FIXME: use quad stamp
RB_BeginSurface( tr.sunShader, tess.fogNum );
VectorCopy( origin, temp );
VectorSubtract( temp, vec1, temp );
VectorSubtract( temp, vec2, temp );
VectorCopy( temp, tess.xyz[tess.numVertexes] );
tess.texCoords[tess.numVertexes][0][0] = 0;
tess.texCoords[tess.numVertexes][0][1] = 0;
tess.vertexColors[tess.numVertexes][0] = 255;
tess.vertexColors[tess.numVertexes][1] = 255;
tess.vertexColors[tess.numVertexes][2] = 255;
tess.numVertexes++;
VectorCopy( origin, temp );
VectorAdd( temp, vec1, temp );
VectorSubtract( temp, vec2, temp );
VectorCopy( temp, tess.xyz[tess.numVertexes] );
tess.texCoords[tess.numVertexes][0][0] = 0;
tess.texCoords[tess.numVertexes][0][1] = 1;
tess.vertexColors[tess.numVertexes][0] = 255;
tess.vertexColors[tess.numVertexes][1] = 255;
tess.vertexColors[tess.numVertexes][2] = 255;
tess.numVertexes++;
VectorCopy( origin, temp );
VectorAdd( temp, vec1, temp );
VectorAdd( temp, vec2, temp );
VectorCopy( temp, tess.xyz[tess.numVertexes] );
tess.texCoords[tess.numVertexes][0][0] = 1;
tess.texCoords[tess.numVertexes][0][1] = 1;
tess.vertexColors[tess.numVertexes][0] = 255;
tess.vertexColors[tess.numVertexes][1] = 255;
tess.vertexColors[tess.numVertexes][2] = 255;
tess.numVertexes++;
VectorCopy( origin, temp );
VectorSubtract( temp, vec1, temp );
VectorAdd( temp, vec2, temp );
VectorCopy( temp, tess.xyz[tess.numVertexes] );
tess.texCoords[tess.numVertexes][0][0] = 1;
tess.texCoords[tess.numVertexes][0][1] = 0;
tess.vertexColors[tess.numVertexes][0] = 255;
tess.vertexColors[tess.numVertexes][1] = 255;
tess.vertexColors[tess.numVertexes][2] = 255;
tess.numVertexes++;
tess.indexes[tess.numIndexes++] = 0;
tess.indexes[tess.numIndexes++] = 1;
tess.indexes[tess.numIndexes++] = 2;
tess.indexes[tess.numIndexes++] = 0;
tess.indexes[tess.numIndexes++] = 2;
tess.indexes[tess.numIndexes++] = 3;
RB_EndSurface();
// back to normal depth range
qglDepthRange( 0.0, 1.0 );
}
/*
================
RB_StageIteratorSky
All of the visible sky triangles are in tess
Other things could be stuck in here, like birds in the sky, etc
================
*/
void RB_StageIteratorSky( void ) {
if ( r_fastsky->integer ) {
return;
}
// go through all the polygons and project them onto
// the sky box to see which blocks on each side need
// to be drawn
RB_ClipSkyPolygons( &tess );
// r_showsky will let all the sky blocks be drawn in
// front of everything to allow developers to see how
// much sky is getting sucked in
if ( r_showsky->integer ) {
qglDepthRange( 0.0, 0.0 );
} else {
qglDepthRange( 1.0, 1.0 );
}
// draw the outer skybox
if ( tess.shader->sky.outerbox[0] && tess.shader->sky.outerbox[0] != tr.defaultImage ) {
qglColor3f( tr.identityLight, tr.identityLight, tr.identityLight );
qglPushMatrix ();
GL_State( 0 );
qglTranslatef (backEnd.viewParms.or.origin[0], backEnd.viewParms.or.origin[1], backEnd.viewParms.or.origin[2]);
DrawSkyBox( tess.shader );
qglPopMatrix();
}
// generate the vertexes for all the clouds, which will be drawn
// by the generic shader routine
R_BuildCloudData( &tess );
RB_StageIteratorGeneric();
// draw the inner skybox
// back to normal depth range
qglDepthRange( 0.0, 1.0 );
// note that sky was drawn so we will draw a sun later
backEnd.skyRenderedThisView = qtrue;
}

1215
code/renderer/tr_surface.c Normal file
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668
code/renderer/tr_world.c Normal file
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@ -0,0 +1,668 @@
/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.
This file is part of Quake III Arena source code.
Quake III Arena source code is free software; you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
Quake III Arena source code is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Foobar; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
===========================================================================
*/
#include "tr_local.h"
/*
=================
R_CullTriSurf
Returns true if the grid is completely culled away.
Also sets the clipped hint bit in tess
=================
*/
static qboolean R_CullTriSurf( srfTriangles_t *cv ) {
int boxCull;
boxCull = R_CullLocalBox( cv->bounds );
if ( boxCull == CULL_OUT ) {
return qtrue;
}
return qfalse;
}
/*
=================
R_CullGrid
Returns true if the grid is completely culled away.
Also sets the clipped hint bit in tess
=================
*/
static qboolean R_CullGrid( srfGridMesh_t *cv ) {
int boxCull;
int sphereCull;
if ( r_nocurves->integer ) {
return qtrue;
}
if ( tr.currentEntityNum != ENTITYNUM_WORLD ) {
sphereCull = R_CullLocalPointAndRadius( cv->localOrigin, cv->meshRadius );
} else {
sphereCull = R_CullPointAndRadius( cv->localOrigin, cv->meshRadius );
}
boxCull = CULL_OUT;
// check for trivial reject
if ( sphereCull == CULL_OUT )
{
tr.pc.c_sphere_cull_patch_out++;
return qtrue;
}
// check bounding box if necessary
else if ( sphereCull == CULL_CLIP )
{
tr.pc.c_sphere_cull_patch_clip++;
boxCull = R_CullLocalBox( cv->meshBounds );
if ( boxCull == CULL_OUT )
{
tr.pc.c_box_cull_patch_out++;
return qtrue;
}
else if ( boxCull == CULL_IN )
{
tr.pc.c_box_cull_patch_in++;
}
else
{
tr.pc.c_box_cull_patch_clip++;
}
}
else
{
tr.pc.c_sphere_cull_patch_in++;
}
return qfalse;
}
/*
================
R_CullSurface
Tries to back face cull surfaces before they are lighted or
added to the sorting list.
This will also allow mirrors on both sides of a model without recursion.
================
*/
static qboolean R_CullSurface( surfaceType_t *surface, shader_t *shader ) {
srfSurfaceFace_t *sface;
float d;
if ( r_nocull->integer ) {
return qfalse;
}
if ( *surface == SF_GRID ) {
return R_CullGrid( (srfGridMesh_t *)surface );
}
if ( *surface == SF_TRIANGLES ) {
return R_CullTriSurf( (srfTriangles_t *)surface );
}
if ( *surface != SF_FACE ) {
return qfalse;
}
if ( shader->cullType == CT_TWO_SIDED ) {
return qfalse;
}
// face culling
if ( !r_facePlaneCull->integer ) {
return qfalse;
}
sface = ( srfSurfaceFace_t * ) surface;
d = DotProduct (tr.or.viewOrigin, sface->plane.normal);
// don't cull exactly on the plane, because there are levels of rounding
// through the BSP, ICD, and hardware that may cause pixel gaps if an
// epsilon isn't allowed here
if ( shader->cullType == CT_FRONT_SIDED ) {
if ( d < sface->plane.dist - 8 ) {
return qtrue;
}
} else {
if ( d > sface->plane.dist + 8 ) {
return qtrue;
}
}
return qfalse;
}
static int R_DlightFace( srfSurfaceFace_t *face, int dlightBits ) {
float d;
int i;
dlight_t *dl;
for ( i = 0 ; i < tr.refdef.num_dlights ; i++ ) {
if ( ! ( dlightBits & ( 1 << i ) ) ) {
continue;
}
dl = &tr.refdef.dlights[i];
d = DotProduct( dl->origin, face->plane.normal ) - face->plane.dist;
if ( d < -dl->radius || d > dl->radius ) {
// dlight doesn't reach the plane
dlightBits &= ~( 1 << i );
}
}
if ( !dlightBits ) {
tr.pc.c_dlightSurfacesCulled++;
}
face->dlightBits[ tr.smpFrame ] = dlightBits;
return dlightBits;
}
static int R_DlightGrid( srfGridMesh_t *grid, int dlightBits ) {
int i;
dlight_t *dl;
for ( i = 0 ; i < tr.refdef.num_dlights ; i++ ) {
if ( ! ( dlightBits & ( 1 << i ) ) ) {
continue;
}
dl = &tr.refdef.dlights[i];
if ( dl->origin[0] - dl->radius > grid->meshBounds[1][0]
|| dl->origin[0] + dl->radius < grid->meshBounds[0][0]
|| dl->origin[1] - dl->radius > grid->meshBounds[1][1]
|| dl->origin[1] + dl->radius < grid->meshBounds[0][1]
|| dl->origin[2] - dl->radius > grid->meshBounds[1][2]
|| dl->origin[2] + dl->radius < grid->meshBounds[0][2] ) {
// dlight doesn't reach the bounds
dlightBits &= ~( 1 << i );
}
}
if ( !dlightBits ) {
tr.pc.c_dlightSurfacesCulled++;
}
grid->dlightBits[ tr.smpFrame ] = dlightBits;
return dlightBits;
}
static int R_DlightTrisurf( srfTriangles_t *surf, int dlightBits ) {
// FIXME: more dlight culling to trisurfs...
surf->dlightBits[ tr.smpFrame ] = dlightBits;
return dlightBits;
#if 0
int i;
dlight_t *dl;
for ( i = 0 ; i < tr.refdef.num_dlights ; i++ ) {
if ( ! ( dlightBits & ( 1 << i ) ) ) {
continue;
}
dl = &tr.refdef.dlights[i];
if ( dl->origin[0] - dl->radius > grid->meshBounds[1][0]
|| dl->origin[0] + dl->radius < grid->meshBounds[0][0]
|| dl->origin[1] - dl->radius > grid->meshBounds[1][1]
|| dl->origin[1] + dl->radius < grid->meshBounds[0][1]
|| dl->origin[2] - dl->radius > grid->meshBounds[1][2]
|| dl->origin[2] + dl->radius < grid->meshBounds[0][2] ) {
// dlight doesn't reach the bounds
dlightBits &= ~( 1 << i );
}
}
if ( !dlightBits ) {
tr.pc.c_dlightSurfacesCulled++;
}
grid->dlightBits[ tr.smpFrame ] = dlightBits;
return dlightBits;
#endif
}
/*
====================
R_DlightSurface
The given surface is going to be drawn, and it touches a leaf
that is touched by one or more dlights, so try to throw out
more dlights if possible.
====================
*/
static int R_DlightSurface( msurface_t *surf, int dlightBits ) {
if ( *surf->data == SF_FACE ) {
dlightBits = R_DlightFace( (srfSurfaceFace_t *)surf->data, dlightBits );
} else if ( *surf->data == SF_GRID ) {
dlightBits = R_DlightGrid( (srfGridMesh_t *)surf->data, dlightBits );
} else if ( *surf->data == SF_TRIANGLES ) {
dlightBits = R_DlightTrisurf( (srfTriangles_t *)surf->data, dlightBits );
} else {
dlightBits = 0;
}
if ( dlightBits ) {
tr.pc.c_dlightSurfaces++;
}
return dlightBits;
}
/*
======================
R_AddWorldSurface
======================
*/
static void R_AddWorldSurface( msurface_t *surf, int dlightBits ) {
if ( surf->viewCount == tr.viewCount ) {
return; // already in this view
}
surf->viewCount = tr.viewCount;
// FIXME: bmodel fog?
// try to cull before dlighting or adding
if ( R_CullSurface( surf->data, surf->shader ) ) {
return;
}
// check for dlighting
if ( dlightBits ) {
dlightBits = R_DlightSurface( surf, dlightBits );
dlightBits = ( dlightBits != 0 );
}
R_AddDrawSurf( surf->data, surf->shader, surf->fogIndex, dlightBits );
}
/*
=============================================================
BRUSH MODELS
=============================================================
*/
/*
=================
R_AddBrushModelSurfaces
=================
*/
void R_AddBrushModelSurfaces ( trRefEntity_t *ent ) {
bmodel_t *bmodel;
int clip;
model_t *pModel;
int i;
pModel = R_GetModelByHandle( ent->e.hModel );
bmodel = pModel->bmodel;
clip = R_CullLocalBox( bmodel->bounds );
if ( clip == CULL_OUT ) {
return;
}
R_DlightBmodel( bmodel );
for ( i = 0 ; i < bmodel->numSurfaces ; i++ ) {
R_AddWorldSurface( bmodel->firstSurface + i, tr.currentEntity->needDlights );
}
}
/*
=============================================================
WORLD MODEL
=============================================================
*/
/*
================
R_RecursiveWorldNode
================
*/
static void R_RecursiveWorldNode( mnode_t *node, int planeBits, int dlightBits ) {
do {
int newDlights[2];
// if the node wasn't marked as potentially visible, exit
if (node->visframe != tr.visCount) {
return;
}
// if the bounding volume is outside the frustum, nothing
// inside can be visible OPTIMIZE: don't do this all the way to leafs?
if ( !r_nocull->integer ) {
int r;
if ( planeBits & 1 ) {
r = BoxOnPlaneSide(node->mins, node->maxs, &tr.viewParms.frustum[0]);
if (r == 2) {
return; // culled
}
if ( r == 1 ) {
planeBits &= ~1; // all descendants will also be in front
}
}
if ( planeBits & 2 ) {
r = BoxOnPlaneSide(node->mins, node->maxs, &tr.viewParms.frustum[1]);
if (r == 2) {
return; // culled
}
if ( r == 1 ) {
planeBits &= ~2; // all descendants will also be in front
}
}
if ( planeBits & 4 ) {
r = BoxOnPlaneSide(node->mins, node->maxs, &tr.viewParms.frustum[2]);
if (r == 2) {
return; // culled
}
if ( r == 1 ) {
planeBits &= ~4; // all descendants will also be in front
}
}
if ( planeBits & 8 ) {
r = BoxOnPlaneSide(node->mins, node->maxs, &tr.viewParms.frustum[3]);
if (r == 2) {
return; // culled
}
if ( r == 1 ) {
planeBits &= ~8; // all descendants will also be in front
}
}
}
if ( node->contents != -1 ) {
break;
}
// node is just a decision point, so go down both sides
// since we don't care about sort orders, just go positive to negative
// determine which dlights are needed
newDlights[0] = 0;
newDlights[1] = 0;
if ( dlightBits ) {
int i;
for ( i = 0 ; i < tr.refdef.num_dlights ; i++ ) {
dlight_t *dl;
float dist;
if ( dlightBits & ( 1 << i ) ) {
dl = &tr.refdef.dlights[i];
dist = DotProduct( dl->origin, node->plane->normal ) - node->plane->dist;
if ( dist > -dl->radius ) {
newDlights[0] |= ( 1 << i );
}
if ( dist < dl->radius ) {
newDlights[1] |= ( 1 << i );
}
}
}
}
// recurse down the children, front side first
R_RecursiveWorldNode (node->children[0], planeBits, newDlights[0] );
// tail recurse
node = node->children[1];
dlightBits = newDlights[1];
} while ( 1 );
{
// leaf node, so add mark surfaces
int c;
msurface_t *surf, **mark;
tr.pc.c_leafs++;
// add to z buffer bounds
if ( node->mins[0] < tr.viewParms.visBounds[0][0] ) {
tr.viewParms.visBounds[0][0] = node->mins[0];
}
if ( node->mins[1] < tr.viewParms.visBounds[0][1] ) {
tr.viewParms.visBounds[0][1] = node->mins[1];
}
if ( node->mins[2] < tr.viewParms.visBounds[0][2] ) {
tr.viewParms.visBounds[0][2] = node->mins[2];
}
if ( node->maxs[0] > tr.viewParms.visBounds[1][0] ) {
tr.viewParms.visBounds[1][0] = node->maxs[0];
}
if ( node->maxs[1] > tr.viewParms.visBounds[1][1] ) {
tr.viewParms.visBounds[1][1] = node->maxs[1];
}
if ( node->maxs[2] > tr.viewParms.visBounds[1][2] ) {
tr.viewParms.visBounds[1][2] = node->maxs[2];
}
// add the individual surfaces
mark = node->firstmarksurface;
c = node->nummarksurfaces;
while (c--) {
// the surface may have already been added if it
// spans multiple leafs
surf = *mark;
R_AddWorldSurface( surf, dlightBits );
mark++;
}
}
}
/*
===============
R_PointInLeaf
===============
*/
static mnode_t *R_PointInLeaf( const vec3_t p ) {
mnode_t *node;
float d;
cplane_t *plane;
if ( !tr.world ) {
ri.Error (ERR_DROP, "R_PointInLeaf: bad model");
}
node = tr.world->nodes;
while( 1 ) {
if (node->contents != -1) {
break;
}
plane = node->plane;
d = DotProduct (p,plane->normal) - plane->dist;
if (d > 0) {
node = node->children[0];
} else {
node = node->children[1];
}
}
return node;
}
/*
==============
R_ClusterPVS
==============
*/
static const byte *R_ClusterPVS (int cluster) {
if (!tr.world || !tr.world->vis || cluster < 0 || cluster >= tr.world->numClusters ) {
return tr.world->novis;
}
return tr.world->vis + cluster * tr.world->clusterBytes;
}
/*
=================
R_inPVS
=================
*/
qboolean R_inPVS( const vec3_t p1, const vec3_t p2 ) {
mnode_t *leaf;
byte *vis;
leaf = R_PointInLeaf( p1 );
vis = CM_ClusterPVS( leaf->cluster );
leaf = R_PointInLeaf( p2 );
if ( !(vis[leaf->cluster>>3] & (1<<(leaf->cluster&7))) ) {
return qfalse;
}
return qtrue;
}
/*
===============
R_MarkLeaves
Mark the leaves and nodes that are in the PVS for the current
cluster
===============
*/
static void R_MarkLeaves (void) {
const byte *vis;
mnode_t *leaf, *parent;
int i;
int cluster;
// lockpvs lets designers walk around to determine the
// extent of the current pvs
if ( r_lockpvs->integer ) {
return;
}
// current viewcluster
leaf = R_PointInLeaf( tr.viewParms.pvsOrigin );
cluster = leaf->cluster;
// if the cluster is the same and the area visibility matrix
// hasn't changed, we don't need to mark everything again
// if r_showcluster was just turned on, remark everything
if ( tr.viewCluster == cluster && !tr.refdef.areamaskModified
&& !r_showcluster->modified ) {
return;
}
if ( r_showcluster->modified || r_showcluster->integer ) {
r_showcluster->modified = qfalse;
if ( r_showcluster->integer ) {
ri.Printf( PRINT_ALL, "cluster:%i area:%i\n", cluster, leaf->area );
}
}
tr.visCount++;
tr.viewCluster = cluster;
if ( r_novis->integer || tr.viewCluster == -1 ) {
for (i=0 ; i<tr.world->numnodes ; i++) {
if (tr.world->nodes[i].contents != CONTENTS_SOLID) {
tr.world->nodes[i].visframe = tr.visCount;
}
}
return;
}
vis = R_ClusterPVS (tr.viewCluster);
for (i=0,leaf=tr.world->nodes ; i<tr.world->numnodes ; i++, leaf++) {
cluster = leaf->cluster;
if ( cluster < 0 || cluster >= tr.world->numClusters ) {
continue;
}
// check general pvs
if ( !(vis[cluster>>3] & (1<<(cluster&7))) ) {
continue;
}
// check for door connection
if ( (tr.refdef.areamask[leaf->area>>3] & (1<<(leaf->area&7)) ) ) {
continue; // not visible
}
parent = leaf;
do {
if (parent->visframe == tr.visCount)
break;
parent->visframe = tr.visCount;
parent = parent->parent;
} while (parent);
}
}
/*
=============
R_AddWorldSurfaces
=============
*/
void R_AddWorldSurfaces (void) {
if ( !r_drawworld->integer ) {
return;
}
if ( tr.refdef.rdflags & RDF_NOWORLDMODEL ) {
return;
}
tr.currentEntityNum = ENTITYNUM_WORLD;
tr.shiftedEntityNum = tr.currentEntityNum << QSORT_ENTITYNUM_SHIFT;
// determine which leaves are in the PVS / areamask
R_MarkLeaves ();
// clear out the visible min/max
ClearBounds( tr.viewParms.visBounds[0], tr.viewParms.visBounds[1] );
// perform frustum culling and add all the potentially visible surfaces
if ( tr.refdef.num_dlights > 32 ) {
tr.refdef.num_dlights = 32 ;
}
R_RecursiveWorldNode( tr.world->nodes, 15, ( 1 << tr.refdef.num_dlights ) - 1 );
}