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https://git.code.sf.net/p/quake/quakeforge
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Load the quake palete as a texture.
256x1 rgba.
This commit is contained in:
Bill Currie
parent
99c490ce52
commit
b7c90fa02d
2 changed files with 167 additions and 1 deletions
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@ -56,7 +56,7 @@ libvid_gl_la_SOURCES= vid_common_gl.c qfgl_ext.c vtxarray.c
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libvid_gl_la_CFLAGS= @PREFER_NON_PIC@
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libvid_gl_la_LDFLAGS= @STATIC@
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libvid_glsl_la_SOURCES= vid_common_gl.c qfgl_ext.c vtxarray.c
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libvid_glsl_la_SOURCES= vid_common_glsl.c qfgl_ext.c vtxarray.c
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libvid_glsl_la_CFLAGS= @PREFER_NON_PIC@
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libvid_glsl_la_LDFLAGS= @STATIC@
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166
libs/video/targets/vid_common_glsl.c
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166
libs/video/targets/vid_common_glsl.c
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@ -0,0 +1,166 @@
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/*
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vid_common_glsl.c
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Common OpenGLSL video driver functions
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Copyright (C) 1996-1997 Id Software, Inc.
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Copyright (C) 2011 Bill Currie <bill@taniwha.org>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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static __attribute__ ((used)) const char rcsid[] = "$Id$";
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#ifdef HAVE_MATH_H
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# include <math.h>
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#endif
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#ifdef HAVE_STRING_H
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# include <string.h>
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#endif
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#ifdef HAVE_STRINGS_H
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# include <strings.h>
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#endif
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#include "QF/cvar.h"
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#include "QF/input.h"
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#include "QF/qargs.h"
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#include "QF/quakefs.h"
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#include "QF/sys.h"
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#include "QF/va.h"
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#include "QF/vid.h"
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#include "QF/GL/defines.h"
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#include "QF/GL/extensions.h"
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#include "QF/GL/funcs.h"
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#include "QF/GL/qf_vid.h"
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#include "compat.h"
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#include "d_iface.h"
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#include "r_cvar.h"
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#include "sbar.h"
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VISIBLE int glsl_palette;
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VISIBLE int gl_filter_min = GL_LINEAR_MIPMAP_LINEAR;
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VISIBLE int gl_filter_max = GL_LINEAR;
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VISIBLE float gldepthmin, gldepthmax;
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VISIBLE qboolean is8bit = false;
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static void
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GL_Common_Init_Cvars (void)
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{
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}
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void
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VID_SetPalette (unsigned char *palette)
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{
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byte *pal, *ip, *op;
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unsigned int r, g, b, v;
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unsigned short i;
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unsigned int *table;
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// 8 8 8 encoding
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Sys_MaskPrintf (SYS_VID, "Converting 8to24\n");
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pal = palette;
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table = d_8to24table;
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for (i = 0; i < 255; i++) { // used to be i<256, see d_8to24table below
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r = pal[0];
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g = pal[1];
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b = pal[2];
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pal += 3;
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#ifdef WORDS_BIGENDIAN
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v = (255 << 0) + (r << 24) + (g << 16) + (b << 8);
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#else
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v = (255 << 24) + (r << 0) + (g << 8) + (b << 16);
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#endif
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*table++ = v;
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}
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d_8to24table[255] = 0; // 255 is transparent
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Sys_MaskPrintf (SYS_VID, "Converting palette to RGBA texture\n");
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pal = malloc (256 * 4);
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for (i = 0, ip = palette, op = pal; i < 255; i++) {
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*op++ = *ip++;
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*op++ = 255; // alpha = 1
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}
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QuatZero (op); // color 255 = transparent (alpha = 0)
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if (!glsl_palette) {
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GLuint tex;
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qfglGenTextures (1, &tex);
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glsl_palette = tex;
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}
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qfglBindTexture (GL_TEXTURE_2D, glsl_palette);
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qfglTexImage2D (GL_TEXTURE_2D, 0, GL_RGBA, 256, 1, 0,
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GL_RGBA, GL_UNSIGNED_BYTE, pal);
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free (pal);
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}
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void
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GL_Init_Common (void)
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{
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GLF_FindFunctions ();
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GL_Common_Init_Cvars ();
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qfglClearColor (0, 0, 0, 0);
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qfglEnable (GL_TEXTURE_2D);
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qfglCullFace (GL_FRONT);
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qfglPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
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qfglShadeModel (GL_FLAT);
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qfglEnable (GL_BLEND);
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qfglBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
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qfglTexEnvf (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
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qfglTexParameterf (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_min);
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qfglTexParameterf (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_max);
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qfglTexParameterf (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
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qfglTexParameterf (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
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}
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void
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VID_Init8bitPalette (void)
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{
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}
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void
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VID_LockBuffer (void)
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{
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}
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void
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VID_UnlockBuffer (void)
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{
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}
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void
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D_BeginDirectRect (int x, int y, byte *pbitmap, int width, int height)
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{
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}
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void
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D_EndDirectRect (int x, int y, int width, int height)
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{
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}
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