mirror of
https://git.code.sf.net/p/quake/quakeforge
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d743c6c55f
Add GLSL directory to QF and use it for all gsls based code (instead of GL). defines.h, types.h and funcs.h are derived from gl2.h from khronos. Text drawing now uses triangles instead of quads.
164 lines
3.5 KiB
C
164 lines
3.5 KiB
C
/*
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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/GLSL/defines.h"
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#include "QF/GLSL/funcs.h"
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#include "QF/GLSL/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++ = *ip++;
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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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qfglTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
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qfglTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
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qfglTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
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qfglTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
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qfglGenerateMipmap (GL_TEXTURE_2D);
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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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qfglEnable (GL_BLEND);
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qfglBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
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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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