mirror of
https://github.com/nzp-team/fteqw.git
synced 2024-11-30 07:31:13 +00:00
b0fb7f242c
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@68 fc73d0e0-1445-4013-8a0c-d673dee63da5
368 lines
15 KiB
C
368 lines
15 KiB
C
#include "quakedef.h"
|
|
#include "glquake.h"
|
|
|
|
//standard 1.1 opengl calls
|
|
void (APIENTRY *qglAlphaFunc) (GLenum func, GLclampf ref);
|
|
void (APIENTRY *qglBegin) (GLenum mode);
|
|
void (APIENTRY *qglBlendFunc) (GLenum sfactor, GLenum dfactor);
|
|
void (APIENTRY *qglClear) (GLbitfield mask);
|
|
void (APIENTRY *qglClearColor) (GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha);
|
|
void (APIENTRY *qglClearDepth) (GLclampd depth);
|
|
void (APIENTRY *qglClearStencil) (GLint s);
|
|
void (APIENTRY *qglColor3f) (GLfloat red, GLfloat green, GLfloat blue);
|
|
void (APIENTRY *qglColor3ub) (GLubyte red, GLubyte green, GLubyte blue);
|
|
void (APIENTRY *qglColor4f) (GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
|
|
void (APIENTRY *qglColor4fv) (const GLfloat *v);
|
|
void (APIENTRY *qglColor4ub) (GLubyte red, GLubyte green, GLubyte blue, GLubyte alpha);
|
|
void (APIENTRY *qglColor4ubv) (const GLubyte *v);
|
|
void (APIENTRY *qglColorMask) (GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha);
|
|
void (APIENTRY *qglCullFace) (GLenum mode);
|
|
void (APIENTRY *qglDepthFunc) (GLenum func);
|
|
void (APIENTRY *qglDepthMask) (GLboolean flag);
|
|
void (APIENTRY *qglDepthRange) (GLclampd zNear, GLclampd zFar);
|
|
void (APIENTRY *qglDisable) (GLenum cap);
|
|
void (APIENTRY *qglDrawBuffer) (GLenum mode);
|
|
void (APIENTRY *qglDrawPixels) (GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid *pixels);
|
|
void (APIENTRY *qglEnable) (GLenum cap);
|
|
void (APIENTRY *qglEnd) (void);
|
|
void (APIENTRY *qglFinish) (void);
|
|
void (APIENTRY *qglFlush) (void);
|
|
void (APIENTRY *qglFrustum) (GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble zNear, GLdouble zFar);
|
|
void (APIENTRY *qglGetFloatv) (GLenum pname, GLfloat *params);
|
|
void (APIENTRY *qglGetIntegerv) (GLenum pname, GLint *params);
|
|
const GLubyte * (APIENTRY *qglGetString) (GLenum name);
|
|
void (APIENTRY *qglHint) (GLenum target, GLenum mode);
|
|
void (APIENTRY *qglLoadIdentity) (void);
|
|
void (APIENTRY *qglLoadMatrixf) (const GLfloat *m);
|
|
void (APIENTRY *qglNormal3f) (GLfloat nx, GLfloat ny, GLfloat nz);
|
|
void (APIENTRY *qglNormal3fv) (const GLfloat *v);
|
|
void (APIENTRY *qglMatrixMode) (GLenum mode);
|
|
void (APIENTRY *qglMultMatrixf) (const GLfloat *m);
|
|
void (APIENTRY *qglOrtho) (GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble zNear, GLdouble zFar);
|
|
void (APIENTRY *qglPolygonMode) (GLenum face, GLenum mode);
|
|
void (APIENTRY *qglPopMatrix) (void);
|
|
void (APIENTRY *qglPushMatrix) (void);
|
|
void (APIENTRY *qglReadBuffer) (GLenum mode);
|
|
void (APIENTRY *qglReadPixels) (GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLvoid *pixels);
|
|
void (APIENTRY *qglRotatef) (GLfloat angle, GLfloat x, GLfloat y, GLfloat z);
|
|
void (APIENTRY *qglScalef) (GLfloat x, GLfloat y, GLfloat z);
|
|
void (APIENTRY *qglShadeModel) (GLenum mode);
|
|
void (APIENTRY *qglTexCoord1f) (GLfloat s);
|
|
void (APIENTRY *qglTexCoord2f) (GLfloat s, GLfloat t);
|
|
void (APIENTRY *qglTexCoord2fv) (const GLfloat *v);
|
|
void (APIENTRY *qglTexEnvf) (GLenum target, GLenum pname, GLfloat param);
|
|
void (APIENTRY *qglTexEnvi) (GLenum target, GLenum pname, GLint param);
|
|
void (APIENTRY *qglTexGeni) (GLenum coord, GLenum pname, GLint param);
|
|
void (APIENTRY *qglTexImage2D) (GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
|
|
void (APIENTRY *qglTexParameteri) (GLenum target, GLenum pname, GLint param);
|
|
void (APIENTRY *qglTexParameterf) (GLenum target, GLenum pname, GLfloat param);
|
|
void (APIENTRY *qglTexSubImage2D) (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid *pixels);
|
|
void (APIENTRY *qglTranslatef) (GLfloat x, GLfloat y, GLfloat z);
|
|
void (APIENTRY *qglVertex2f) (GLfloat x, GLfloat y);
|
|
void (APIENTRY *qglVertex3f) (GLfloat x, GLfloat y, GLfloat z);
|
|
void (APIENTRY *qglVertex3fv) (const GLfloat *v);
|
|
void (APIENTRY *qglViewport) (GLint x, GLint y, GLsizei width, GLsizei height);
|
|
void (APIENTRY *qglGetTexLevelParameteriv) (GLenum target, GLint level, GLenum pname, GLint *params);
|
|
|
|
void (APIENTRY *qglDrawElements) (GLenum mode, GLsizei count, GLenum type, const GLvoid *indices);
|
|
void (APIENTRY *qglVertexPointer) (GLint size, GLenum type, GLsizei stride, const GLvoid *pointer);
|
|
void (APIENTRY *qglNormalPointer) (GLenum type, GLsizei stride, const GLvoid *pointer);
|
|
void (APIENTRY *qglTexCoordPointer) (GLint size, GLenum type, GLsizei stride, const GLvoid *pointer);
|
|
void (APIENTRY *qglColorPointer) (GLint size, GLenum type, GLsizei stride, const GLvoid *pointer);
|
|
void (APIENTRY *qglDisableClientState) (GLenum array);
|
|
void (APIENTRY *qglEnableClientState) (GLenum array);
|
|
|
|
|
|
void (APIENTRY *qglStencilOp) (GLenum fail, GLenum zfail, GLenum zpass);
|
|
void (APIENTRY *qglStencilFunc) (GLenum func, GLint ref, GLuint mask);
|
|
void (APIENTRY *qglPushAttrib) (GLbitfield mask);
|
|
void (APIENTRY *qglPopAttrib) (void);
|
|
|
|
|
|
|
|
|
|
//extensions
|
|
//arb multitexture
|
|
qlpSelTexFUNC qglActiveTextureARB;
|
|
qlpSelTexFUNC qglClientActiveTextureARB;
|
|
qlpMTex3FUNC qglMultiTexCoord3fARB;
|
|
qlpMTex2FUNC qglMultiTexCoord2fARB;
|
|
|
|
//generic multitexture
|
|
lpMTexFUNC qglMTexCoord2fSGIS;
|
|
lpSelTexFUNC qglSelectTextureSGIS;
|
|
int mtexid0;
|
|
int mtexid1;
|
|
|
|
//ati_truform
|
|
PFNGLPNTRIANGLESIATIPROC qglPNTrianglesiATI;
|
|
PFNGLPNTRIANGLESFATIPROC qglPNTrianglesfATI;
|
|
|
|
//stencil shadowing
|
|
void (APIENTRY *qglStencilOpSeparateATI) (GLenum face, GLenum fail, GLenum zfail, GLenum zpass);
|
|
PFNGLACTIVESTENCILFACEEXTPROC qglActiveStencilFaceEXT;
|
|
|
|
//quick hack that made quake work on both 1 and 1.1 gl implementations.
|
|
BINDTEXFUNCPTR bindTexFunc;
|
|
|
|
|
|
qboolean gl_ext_stencil_wrap;
|
|
int gl_mtexarbable=0; //max texture units
|
|
qboolean gl_mtexable = false;
|
|
qboolean gl_compressable=false;
|
|
int gl_bumpmappingpossible;
|
|
|
|
|
|
|
|
|
|
//int texture_mode = GL_NEAREST;
|
|
//int texture_mode = GL_NEAREST_MIPMAP_NEAREST;
|
|
//int texture_mode = GL_NEAREST_MIPMAP_LINEAR;
|
|
int texture_mode = GL_LINEAR;
|
|
//int texture_mode = GL_LINEAR_MIPMAP_NEAREST;
|
|
//int texture_mode = GL_LINEAR_MIPMAP_LINEAR;
|
|
|
|
int texture_extension_number = 1;
|
|
|
|
#define getglcore getglfunction
|
|
#define getglext(name) getglfunction(name)
|
|
void GL_CheckExtensions (void *(*getglfunction) (char *name))
|
|
{
|
|
extern cvar_t gl_bump;
|
|
qboolean support_GL_ARB_texture_env_combine, support_GL_ARB_texture_env_dot3, support_GL_ARB_texture_cube_map;
|
|
|
|
|
|
//multitexture
|
|
gl_mtexable = false;
|
|
gl_mtexarbable = 0;
|
|
qglActiveTextureARB = NULL;
|
|
qglMultiTexCoord2fARB = NULL;
|
|
qglMultiTexCoord3fARB = NULL;
|
|
qglMTexCoord2fSGIS = NULL;
|
|
qglSelectTextureSGIS = NULL;
|
|
mtexid0 = 0;
|
|
mtexid1 = 0;
|
|
|
|
//none of them bumpmapping possabilities.
|
|
gl_bumpmappingpossible = false;
|
|
|
|
//no GL_EXT_stencil_wrap
|
|
gl_ext_stencil_wrap = false;
|
|
|
|
//no GL_ATI_separate_stencil
|
|
qglStencilOpSeparateATI = NULL;
|
|
|
|
//no GL_EXT_stencil_two_side
|
|
qglActiveStencilFaceEXT = NULL;
|
|
|
|
//no GL_ARB_texture_compression
|
|
gl_compressable = false;
|
|
|
|
//no truform. sorry.
|
|
qglPNTrianglesfATI = NULL;
|
|
qglPNTrianglesiATI = NULL;
|
|
|
|
if (strstr(gl_extensions, "GL_ARB_multitexture") && !COM_CheckParm("-noamtex"))
|
|
{ //ARB multitexture is the popular choice.
|
|
Con_SafePrintf("ARB Multitexture extensions found. Use -noamtex to disable.\n");
|
|
qglActiveTextureARB = (void *) getglext("glActiveTextureARB");
|
|
qglClientActiveTextureARB = (void *) getglext("glClientActiveTextureARB");
|
|
qglMultiTexCoord2fARB = (void *) getglext("glMultiTexCoord2fARB");
|
|
qglMultiTexCoord3fARB = (void *) getglext("glMultiTexCoord3fARB");
|
|
|
|
glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &gl_mtexarbable);
|
|
gl_mtexable = true;
|
|
|
|
qglMTexCoord2fSGIS = qglMultiTexCoord2fARB;
|
|
qglSelectTextureSGIS = qglActiveTextureARB;
|
|
|
|
mtexid0 = GL_TEXTURE0_ARB;
|
|
mtexid1 = GL_TEXTURE1_ARB;
|
|
|
|
if (!qglActiveTextureARB || !qglClientActiveTextureARB || !qglMultiTexCoord2fARB || !qglMultiTexCoord3fARB)
|
|
{
|
|
qglActiveTextureARB = NULL;
|
|
qglMultiTexCoord2fARB = NULL;
|
|
qglMultiTexCoord3fARB = NULL;
|
|
qglMTexCoord2fSGIS = NULL;
|
|
qglSelectTextureSGIS = NULL;
|
|
gl_mtexable=false;
|
|
gl_mtexarbable = false;
|
|
}
|
|
|
|
}
|
|
else if (strstr(gl_extensions, "GL_SGIS_multitexture") && !COM_CheckParm("-nomtex"))
|
|
{ //SGIS multitexture, limited in many ways but basic functionality is identical to ARB
|
|
Con_SafePrintf("Multitexture extensions found.\n");
|
|
qglMTexCoord2fSGIS = (void *) getglext("glMTexCoord2fSGIS");
|
|
qglSelectTextureSGIS = (void *) getglext("glSelectTextureSGIS");
|
|
gl_mtexable = true;
|
|
|
|
mtexid0 = GL_TEXTURE0_SGIS;
|
|
mtexid1 = GL_TEXTURE1_SGIS;
|
|
}
|
|
|
|
if (strstr(gl_extensions, "GL_EXT_stencil_wrap"))
|
|
gl_ext_stencil_wrap = true;
|
|
|
|
if (strstr(gl_extensions, "GL_ATI_separate_stencil"))
|
|
qglStencilOpSeparateATI = (void *) getglext("glStencilOpSeparateATI");
|
|
if (strstr(gl_extensions, "GL_EXT_stencil_two_side"))
|
|
qglActiveStencilFaceEXT = (void *) getglext("glActiveStencilFaceEXT");
|
|
|
|
if (strstr(gl_extensions, "GL_ARB_texture_compression"))
|
|
{
|
|
qglCompressedTexImage2DARB = (void *)getglext("glCompressedTexImage2DARB");
|
|
qglGetCompressedTexImageARB = (void *)getglext("glGetCompressedTexImageARB");
|
|
|
|
if (!qglCompressedTexImage2DARB || !qglGetCompressedTexImageARB)
|
|
{
|
|
qglCompressedTexImage2DARB = NULL;
|
|
qglGetCompressedTexImageARB = NULL;
|
|
}
|
|
else
|
|
gl_compressable = true;
|
|
}
|
|
|
|
if (strstr(gl_extensions, "GL_ATI_pn_triangles"))
|
|
{
|
|
qglPNTrianglesfATI = (void *)getglext("glPNTrianglesfATI");
|
|
qglPNTrianglesiATI = (void *)getglext("glPNTrianglesiATI");
|
|
}
|
|
|
|
if (strstr(gl_extensions, "GL_EXT_texture_object"))
|
|
{
|
|
bindTexFunc = (void *)getglext("glBindTextureEXT");
|
|
if (!bindTexFunc) //grrr
|
|
bindTexFunc = (void *)getglext("glBindTexture");
|
|
}
|
|
|
|
support_GL_ARB_texture_env_combine = !!strstr(gl_extensions, "GL_ARB_texture_env_combine");
|
|
support_GL_ARB_texture_env_dot3 = !!strstr(gl_extensions, "GL_ARB_texture_env_dot3");
|
|
support_GL_ARB_texture_cube_map = !!strstr(gl_extensions, "GL_ARB_texture_cube_map");
|
|
|
|
if (gl_mtexarbable && support_GL_ARB_texture_cube_map && support_GL_ARB_texture_env_combine && support_GL_ARB_texture_env_dot3 && !COM_CheckParm("-nobump") && gl_bump.value)
|
|
gl_bumpmappingpossible = true;
|
|
}
|
|
|
|
//the vid routines have initialised a window, and now they are giving us a reference to some of of GetProcAddress to get pointers to the funcs.
|
|
void GL_Init(void *(*getglfunction) (char *name))
|
|
{
|
|
qglAlphaFunc = (void *)getglcore("glAlphaFunc");
|
|
qglBegin = (void *)getglcore("glBegin");
|
|
qglBlendFunc = (void *)getglcore("glBlendFunc");
|
|
bindTexFunc = (void *)getglcore("glBindTexture"); //for compleateness
|
|
qglClear = (void *)getglcore("glClear");
|
|
qglClearColor = (void *)getglcore("glClearColor");
|
|
qglClearDepth = (void *)getglcore("glClearDepth");
|
|
qglClearStencil = (void *)getglcore("glClearStencil");
|
|
qglColor3f = (void *)getglcore("glColor3f");
|
|
qglColor3ub = (void *)getglcore("glColor3ub");
|
|
qglColor4f = (void *)getglcore("glColor4f");
|
|
qglColor4fv = (void *)getglcore("glColor4fv");
|
|
qglColor4ub = (void *)getglcore("glColor4ub");
|
|
qglColor4ubv = (void *)getglcore("glColor4ubv");
|
|
qglColorMask = (void *)getglcore("glColorMask");
|
|
qglCullFace = (void *)getglcore("glCullFace");
|
|
qglDepthFunc = (void *)getglcore("glDepthFunc");
|
|
qglDepthMask = (void *)getglcore("glDepthMask");
|
|
qglDepthRange = (void *)getglcore("glDepthRange");
|
|
qglDisable = (void *)getglcore("glDisable");
|
|
qglDrawBuffer = (void *)getglcore("glDrawBuffer");
|
|
qglDrawPixels = (void *)getglcore("glDrawPixels");
|
|
qglEnable = (void *)getglcore("glEnable");
|
|
qglEnd = (void *)getglcore("glEnd");
|
|
qglFinish = (void *)getglcore("glFinish");
|
|
qglFlush = (void *)getglcore("glFlush");
|
|
qglFrustum = (void *)getglcore("glFrustum");
|
|
qglGetFloatv = (void *)getglcore("glGetFloatv");
|
|
qglGetIntegerv = (void *)getglcore("glGetIntegerv");
|
|
qglGetString = (void *)getglcore("glGetString");
|
|
qglGetTexLevelParameteriv = (void *)getglcore("glGetTexLevelParameteriv");
|
|
qglHint = (void *)getglcore("glHint");
|
|
qglLoadIdentity = (void *)getglcore("glLoadIdentity");
|
|
qglLoadMatrixf = (void *)getglcore("glLoadMatrixf");
|
|
qglNormal3f = (void *)getglcore("glNormal3f");
|
|
qglNormal3fv = (void *)getglcore("glNormal3fv");
|
|
qglMatrixMode = (void *)getglcore("glMatrixMode");
|
|
qglMultMatrixf = (void *)getglcore("glMultMatrixf");
|
|
qglOrtho = (void *)getglcore("glOrtho");
|
|
qglPolygonMode = (void *)getglcore("glPolygonMode");
|
|
qglPopMatrix = (void *)getglcore("glPopMatrix");
|
|
qglPushMatrix = (void *)getglcore("glPushMatrix");
|
|
qglReadBuffer = (void *)getglcore("glReadBuffer");
|
|
qglReadPixels = (void *)getglcore("glReadPixels");
|
|
qglRotatef = (void *)getglcore("glRotatef");
|
|
qglScalef = (void *)getglcore("glScalef");
|
|
qglShadeModel = (void *)getglcore("glShadeModel");
|
|
qglTexCoord1f = (void *)getglcore("glTexCoord1f");
|
|
qglTexCoord2f = (void *)getglcore("glTexCoord2f");
|
|
qglTexCoord2fv = (void *)getglcore("glTexCoord2fv");
|
|
qglTexEnvf = (void *)getglcore("glTexEnvf");
|
|
qglTexEnvi = (void *)getglcore("glTexEnvi");
|
|
qglTexGeni = (void *)getglcore("glTexGeni");
|
|
qglTexImage2D = (void *)getglcore("glTexImage2D");
|
|
qglTexParameteri = (void *)getglcore("glTexParameteri");
|
|
qglTexParameterf = (void *)getglcore("glTexParameterf");
|
|
qglTexSubImage2D = (void *)getglcore("glTexSubImage2D");
|
|
qglTranslatef = (void *)getglcore("glTranslatef");
|
|
qglVertex2f = (void *)getglcore("glVertex2f");
|
|
qglVertex3f = (void *)getglcore("glVertex3f");
|
|
qglVertex3fv = (void *)getglcore("glVertex3fv");
|
|
qglViewport = (void *)getglcore("glViewport");
|
|
|
|
//fixme: make non-core?
|
|
qglDrawElements = (void *)getglcore("glDrawElements");
|
|
qglVertexPointer = (void *)getglcore("glVertexPointer");
|
|
qglNormalPointer = (void *)getglcore("glNormalPointer");
|
|
qglTexCoordPointer = (void *)getglcore("glTexCoordPointer");
|
|
qglColorPointer = (void *)getglcore("glColorPointer");
|
|
qglEnableClientState = (void *)getglcore("glEnableClientState");
|
|
qglDisableClientState = (void *)getglcore("glDisableClientState");
|
|
|
|
//fixme: definatly make non-core
|
|
qglStencilOp = (void *)getglcore("glStencilOp");
|
|
qglStencilFunc = (void *)getglcore("glStencilFunc");
|
|
qglPushAttrib = (void *)getglcore("glPushAttrib");
|
|
qglPopAttrib = (void *)getglcore("glPopAttrib");
|
|
|
|
|
|
|
|
|
|
|
|
gl_vendor = glGetString (GL_VENDOR);
|
|
Con_SafePrintf ("GL_VENDOR: %s\n", gl_vendor);
|
|
gl_renderer = glGetString (GL_RENDERER);
|
|
Con_SafePrintf ("GL_RENDERER: %s\n", gl_renderer);
|
|
|
|
gl_version = glGetString (GL_VERSION);
|
|
Con_SafePrintf ("GL_VERSION: %s\n", gl_version);
|
|
gl_extensions = glGetString (GL_EXTENSIONS);
|
|
Con_DPrintf ("GL_EXTENSIONS: %s\n", gl_extensions);
|
|
|
|
GL_CheckExtensions (getglfunction);
|
|
|
|
glClearColor (0,0,0,0); //clear to black so that it looks a little nicer on start.
|
|
glClear(GL_COLOR_BUFFER_BIT);
|
|
glClearColor (1,0,0,0);
|
|
glCullFace(GL_FRONT);
|
|
glEnable(GL_TEXTURE_2D);
|
|
|
|
glEnable(GL_ALPHA_TEST);
|
|
glAlphaFunc(GL_GREATER, 0.666);
|
|
|
|
glPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
|
|
glShadeModel (GL_FLAT);
|
|
|
|
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
|
|
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
|
|
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
|
|
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
|
|
|
|
glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
|
|
|
// glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
|
|
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
|
|
}
|
|
|
|
unsigned int d_8to24rgbtable[256];
|