2 Copyright (C) 1996-1997 Id Software, Inc.
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License
6 as published by the Free Software Foundation; either version 2
7 of the License, or (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
13 See the GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
27 cvar_t r_textshadow = {0, "r_textshadow", "0", "draws a shadow on all text to improve readability"};
29 static rtexture_t *char_texture;
30 cachepic_t *r_crosshairs[NUMCROSSHAIRS+1];
32 //=============================================================================
33 /* Support Routines */
35 #define FONT_FILESIZE 13468
36 #define MAX_CACHED_PICS 1024
37 #define CACHEPICHASHSIZE 256
38 static cachepic_t *cachepichash[CACHEPICHASHSIZE];
39 static cachepic_t cachepics[MAX_CACHED_PICS];
40 static int numcachepics;
42 static rtexturepool_t *drawtexturepool;
44 static unsigned char concharimage[FONT_FILESIZE] =
49 static rtexture_t *draw_generateconchars(void)
52 unsigned char buffer[65536][4], *data = NULL;
55 data = LoadTGA (concharimage, FONT_FILESIZE, 256, 256);
57 for (i = 0;i < 8192;i++)
59 random = lhrandom (0.0,1.0);
60 buffer[i][0] = 83 + (unsigned char)(random * 64);
61 buffer[i][1] = 71 + (unsigned char)(random * 32);
62 buffer[i][2] = 23 + (unsigned char)(random * 16);
63 buffer[i][3] = data[i*4+0];
66 for (i = 8192;i < 32768;i++)
68 random = lhrandom (0.0,1.0);
69 buffer[i][0] = 95 + (unsigned char)(random * 64);
70 buffer[i][1] = 95 + (unsigned char)(random * 64);
71 buffer[i][2] = 95 + (unsigned char)(random * 64);
72 buffer[i][3] = data[i*4+0];
75 for (i = 32768;i < 40960;i++)
77 random = lhrandom (0.0,1.0);
78 buffer[i][0] = 83 + (unsigned char)(random * 64);
79 buffer[i][1] = 71 + (unsigned char)(random * 32);
80 buffer[i][2] = 23 + (unsigned char)(random * 16);
81 buffer[i][3] = data[i*4+0];
84 for (i = 40960;i < 65536;i++)
86 random = lhrandom (0.0,1.0);
87 buffer[i][0] = 96 + (unsigned char)(random * 64);
88 buffer[i][1] = 43 + (unsigned char)(random * 32);
89 buffer[i][2] = 27 + (unsigned char)(random * 32);
90 buffer[i][3] = data[i*4+0];
94 Image_WriteTGARGBA ("gfx/generated_conchars.tga", 256, 256, &buffer[0][0]);
98 return R_LoadTexture2D(drawtexturepool, "conchars", 256, 256, &buffer[0][0], TEXTYPE_RGBA, TEXF_ALPHA | TEXF_PRECACHE, NULL);
101 static char *pointerimage =
120 static rtexture_t *draw_generatemousepointer(void)
123 unsigned char buffer[256][4];
124 for (i = 0;i < 256;i++)
126 if (pointerimage[i] == '.')
135 buffer[i][0] = (pointerimage[i] - '0') * 16;
136 buffer[i][1] = (pointerimage[i] - '0') * 16;
137 buffer[i][2] = (pointerimage[i] - '0') * 16;
141 return R_LoadTexture2D(drawtexturepool, "mousepointer", 16, 16, &buffer[0][0], TEXTYPE_RGBA, TEXF_ALPHA | TEXF_PRECACHE, NULL);
144 static char *crosshairtexdata[NUMCROSSHAIRS] =
249 static rtexture_t *draw_generatecrosshair(int num)
253 unsigned char data[16*16][4];
254 in = crosshairtexdata[num];
255 for (i = 0;i < 16*16;i++)
269 data[i][3] = (unsigned char) ((int) (in[i] - '0') * 255 / 7);
272 return R_LoadTexture2D(drawtexturepool, va("crosshair%i", num), 16, 16, &data[0][0], TEXTYPE_RGBA, TEXF_ALPHA | TEXF_PRECACHE, NULL);
275 static rtexture_t *draw_generateditherpattern(void)
279 unsigned char data[8*8*4];
280 for (y = 0;y < 8;y++)
282 for (x = 0;x < 8;x++)
284 data[(y*8+x)*4+0] = data[(y*8+x)*4+1] = data[(y*8+x)*4+2] = ((x^y) & 4) ? 255 : 0;
285 data[(y*8+x)*4+3] = 255;
288 return R_LoadTexture2D(drawtexturepool, "ditherpattern", 8, 8, data, TEXTYPE_RGBA, TEXF_FORCENEAREST | TEXF_PRECACHE, NULL);
290 unsigned char data[16];
291 memset(data, 255, sizeof(data));
292 data[0] = data[1] = data[2] = data[12] = data[13] = data[14] = 0;
293 return R_LoadTexture2D(drawtexturepool, "ditherpattern", 2, 2, data, TEXTYPE_RGBA, TEXF_FORCENEAREST | TEXF_PRECACHE, NULL);
302 // FIXME: move this to client somehow
303 cachepic_t *Draw_CachePic (const char *path, qboolean persistent)
310 if (!strncmp(CLVIDEOPREFIX, path, sizeof(CLVIDEOPREFIX) - 1))
314 video = CL_GetVideoByName(path);
319 crc = CRC_Block((unsigned char *)path, strlen(path));
320 hashkey = ((crc >> 8) ^ crc) % CACHEPICHASHSIZE;
321 for (pic = cachepichash[hashkey];pic;pic = pic->chain)
322 if (!strcmp (path, pic->name))
325 if (numcachepics == MAX_CACHED_PICS)
327 Con_Printf ("Draw_CachePic: numcachepics == MAX_CACHED_PICS\n");
328 // FIXME: support NULL in callers?
329 return cachepics; // return the first one
331 pic = cachepics + (numcachepics++);
332 strlcpy (pic->name, path, sizeof(pic->name));
334 pic->chain = cachepichash[hashkey];
335 cachepichash[hashkey] = pic;
339 flags |= TEXF_PRECACHE;
340 if (!strcmp(path, "gfx/colorcontrol/ditherpattern"))
343 // load the pic from disk
344 pic->tex = loadtextureimage(drawtexturepool, path, 0, 0, false, flags);
345 if (pic->tex == NULL && !strncmp(path, "gfx/", 4))
347 // compatibility with older versions
348 pic->tex = loadtextureimage(drawtexturepool, path + 4, 0, 0, false, flags);
349 // failed to find gfx/whatever.tga or similar, try the wad
350 if (pic->tex == NULL && (p = (qpic_t *)W_GetLumpName (path + 4)))
352 if (!strcmp(path, "gfx/conchars"))
354 // conchars is a raw image and with color 0 as transparent instead of 255
355 pic->tex = R_LoadTexture2D(drawtexturepool, path, 128, 128, (unsigned char *)p, TEXTYPE_PALETTE, flags, palette_font);
358 pic->tex = R_LoadTexture2D(drawtexturepool, path, p->width, p->height, p->data, TEXTYPE_PALETTE, flags, palette_transparent);
362 if (pic->tex == NULL && !strcmp(path, "gfx/conchars"))
363 pic->tex = draw_generateconchars();
364 if (pic->tex == NULL && !strcmp(path, "ui/mousepointer"))
365 pic->tex = draw_generatemousepointer();
366 if (pic->tex == NULL && !strcmp(path, "gfx/prydoncursor001"))
367 pic->tex = draw_generatemousepointer();
368 if (pic->tex == NULL && !strcmp(path, "gfx/crosshair1"))
369 pic->tex = draw_generatecrosshair(0);
370 if (pic->tex == NULL && !strcmp(path, "gfx/crosshair2"))
371 pic->tex = draw_generatecrosshair(1);
372 if (pic->tex == NULL && !strcmp(path, "gfx/crosshair3"))
373 pic->tex = draw_generatecrosshair(2);
374 if (pic->tex == NULL && !strcmp(path, "gfx/crosshair4"))
375 pic->tex = draw_generatecrosshair(3);
376 if (pic->tex == NULL && !strcmp(path, "gfx/crosshair5"))
377 pic->tex = draw_generatecrosshair(4);
378 if (pic->tex == NULL && !strcmp(path, "gfx/crosshair6"))
379 pic->tex = draw_generatecrosshair(5);
380 if (pic->tex == NULL && !strcmp(path, "gfx/colorcontrol/ditherpattern"))
381 pic->tex = draw_generateditherpattern();
382 if (pic->tex == NULL)
384 Con_Printf("Draw_CachePic: failed to load %s\n", path);
385 pic->tex = r_texture_notexture;
388 pic->width = R_TextureWidth(pic->tex);
389 pic->height = R_TextureHeight(pic->tex);
393 cachepic_t *Draw_NewPic(const char *picname, int width, int height, int alpha, unsigned char *pixels)
398 crc = CRC_Block((unsigned char *)picname, strlen(picname));
399 hashkey = ((crc >> 8) ^ crc) % CACHEPICHASHSIZE;
400 for (pic = cachepichash[hashkey];pic;pic = pic->chain)
401 if (!strcmp (picname, pic->name))
406 if (pic->tex && pic->width == width && pic->height == height)
408 R_UpdateTexture(pic->tex, pixels, 0, 0, width, height);
416 if (numcachepics == MAX_CACHED_PICS)
418 Con_Printf ("Draw_NewPic: numcachepics == MAX_CACHED_PICS\n");
419 // FIXME: support NULL in callers?
420 return cachepics; // return the first one
422 pic = cachepics + (numcachepics++);
423 strcpy (pic->name, picname);
425 pic->chain = cachepichash[hashkey];
426 cachepichash[hashkey] = pic;
431 pic->height = height;
433 R_FreeTexture(pic->tex);
434 pic->tex = R_LoadTexture2D(drawtexturepool, picname, width, height, pixels, TEXTYPE_RGBA, alpha ? TEXF_ALPHA : 0, NULL);
438 void Draw_FreePic(const char *picname)
443 // this doesn't really free the pic, but does free it's texture
444 crc = CRC_Block((unsigned char *)picname, strlen(picname));
445 hashkey = ((crc >> 8) ^ crc) % CACHEPICHASHSIZE;
446 for (pic = cachepichash[hashkey];pic;pic = pic->chain)
448 if (!strcmp (picname, pic->name) && pic->tex)
450 R_FreeTexture(pic->tex);
463 static void gl_draw_start(void)
466 drawtexturepool = R_AllocTexturePool();
469 memset(cachepichash, 0, sizeof(cachepichash));
471 char_texture = Draw_CachePic("gfx/conchars", true)->tex;
472 for (i = 1;i <= NUMCROSSHAIRS;i++)
473 r_crosshairs[i] = Draw_CachePic(va("gfx/crosshair%i", i), true);
476 static void gl_draw_shutdown(void)
478 R_FreeTexturePool(&drawtexturepool);
481 memset(cachepichash, 0, sizeof(cachepichash));
484 static void gl_draw_newmap(void)
488 void GL_Draw_Init (void)
490 Cvar_RegisterVariable(&r_textshadow);
491 R_RegisterModule("GL_Draw", gl_draw_start, gl_draw_shutdown, gl_draw_newmap);
494 void DrawQ_Begin(void)
496 r_view_width = bound(0, r_refdef.width, vid.width);
497 r_view_height = bound(0, r_refdef.height, vid.height);
499 r_view_x = bound(0, r_refdef.x, vid.width - r_refdef.width);
500 r_view_y = bound(0, r_refdef.y, vid.height - r_refdef.height);
502 r_view_matrix = r_refdef.viewentitymatrix;
503 GL_ColorMask(r_refdef.colormask[0], r_refdef.colormask[1], r_refdef.colormask[2], 1);
506 qglViewport(r_view_x, vid.height - (r_view_y + r_view_height), r_view_width, r_view_height);CHECKGLERROR
507 GL_SetupView_Mode_Ortho(0, 0, vid_conwidth.integer, vid_conheight.integer, -10, 100);
508 qglDepthFunc(GL_LEQUAL);CHECKGLERROR
509 R_Mesh_Matrix(&identitymatrix);
515 r_refdef.draw2dstage = true;
518 static void _DrawQ_ProcessDrawFlag(int flags)
521 if(flags == DRAWFLAG_ADDITIVE)
522 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
523 else if(flags == DRAWFLAG_MODULATE)
524 GL_BlendFunc(GL_DST_COLOR, GL_ZERO);
525 else if(flags == DRAWFLAG_2XMODULATE)
526 GL_BlendFunc(GL_DST_COLOR,GL_SRC_COLOR);
528 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
531 void DrawQ_Pic(float x, float y, cachepic_t *pic, float width, float height, float red, float green, float blue, float alpha, int flags)
533 if (!r_refdef.draw2dstage)
535 Con_Printf("DrawQ_Pic: not in 2d rendering stage!\n");
538 DrawQ_SuperPic(x,y,pic,width,height,0,0,red,green,blue,alpha,1,0,red,green,blue,alpha,0,1,red,green,blue,alpha,1,1,red,green,blue,alpha,flags);
541 void DrawQ_String_Real(float x, float y, const char *string, int maxlen, float w, float h, float red, float green, float blue, float alpha, int flags)
546 float vertex3f[QUADELEMENTS_MAXQUADS*4*3];
547 float texcoord2f[QUADELEMENTS_MAXQUADS*4*2];
549 if (!r_refdef.draw2dstage)
551 Con_Printf("DrawQ_String: not in 2d rendering stage!\n");
555 if (!r_render.integer)
558 if (alpha < (1.0f / 255.0f))
561 _DrawQ_ProcessDrawFlag(flags);
563 GL_Color(red, green, blue, alpha);
565 R_Mesh_VertexPointer(vertex3f);
566 R_Mesh_ColorPointer(NULL);
567 R_Mesh_ResetTextureState();
568 R_Mesh_TexBind(0, R_GetTexture(char_texture));
569 R_Mesh_TexCoordPointer(0, 2, texcoord2f);
577 for (i = 0;i < maxlen && x < vid_conwidth.integer && (num = string[i]);i++, x += w)
582 s = (num & 15)*0.0625f + (0.5f / 256.0f);
583 t = (num >> 4)*0.0625f + (0.5f / 256.0f);
584 u = 0.0625f - (1.0f / 256.0f);
585 v = 0.0625f - (1.0f / 256.0f);
586 at[ 0] = s ;at[ 1] = t ;
587 at[ 2] = s+u;at[ 3] = t ;
588 at[ 4] = s+u;at[ 5] = t+v;
589 at[ 6] = s ;at[ 7] = t+v;
590 av[ 0] = x ;av[ 1] = y ;av[ 2] = 10;
591 av[ 3] = x+w;av[ 4] = y ;av[ 5] = 10;
592 av[ 6] = x+w;av[ 7] = y+h;av[ 8] = 10;
593 av[ 9] = x ;av[10] = y+h;av[11] = 10;
597 if (batchcount >= QUADELEMENTS_MAXQUADS)
599 GL_LockArrays(0, batchcount * 4);
600 R_Mesh_Draw(0, batchcount * 4, batchcount * 2, quadelements);
609 GL_LockArrays(0, batchcount * 4);
610 R_Mesh_Draw(0, batchcount * 4, batchcount * 2, quadelements);
615 void DrawQ_String(float x, float y, const char *string, int maxlen, float scalex, float scaley, float red, float green, float blue, float alpha, int flags)
617 if (!r_refdef.draw2dstage)
619 Con_Printf("DrawQ_String: not in 2d rendering stage!\n");
623 if (r_textshadow.integer)
624 DrawQ_String_Real(x+scalex*0.25,y+scaley*0.25,string,maxlen,scalex,scaley,0,0,0,alpha*0.8,flags);
626 DrawQ_String_Real(x,y,string,maxlen,scalex,scaley,red,green,blue,alpha,flags);
629 // color tag printing
630 static vec4_t string_colors[] =
633 // LordHavoc: why on earth is cyan before magenta in Quake3?
634 // LordHavoc: note: Doom3 uses white for [0] and [7]
635 {0.0, 0.0, 0.0, 1.0}, // black
636 {1.0, 0.0, 0.0, 1.0}, // red
637 {0.0, 1.0, 0.0, 1.0}, // green
638 {1.0, 1.0, 0.0, 1.0}, // yellow
639 {0.0, 0.0, 1.0, 1.0}, // blue
640 {0.0, 1.0, 1.0, 1.0}, // cyan
641 {1.0, 0.0, 1.0, 1.0}, // magenta
642 {1.0, 1.0, 1.0, 1.0}, // white
643 // [515]'s BX_COLOREDTEXT extension
644 {1.0, 1.0, 1.0, 0.5}, // half transparent
645 {0.5, 0.5, 0.5, 1.0} // half brightness
646 // Black's color table
647 //{1.0, 1.0, 1.0, 1.0},
648 //{1.0, 0.0, 0.0, 1.0},
649 //{0.0, 1.0, 0.0, 1.0},
650 //{0.0, 0.0, 1.0, 1.0},
651 //{1.0, 1.0, 0.0, 1.0},
652 //{0.0, 1.0, 1.0, 1.0},
653 //{1.0, 0.0, 1.0, 1.0},
654 //{0.1, 0.1, 0.1, 1.0}
657 #define STRING_COLORS_COUNT (sizeof(string_colors) / sizeof(vec4_t))
659 // color is read and changed in the end
660 void DrawQ_ColoredString( float x, float y, const char *text, int maxlen, float scalex, float scaley, float basered, float basegreen, float baseblue, float basealpha, int flags, int *outcolor )
665 const char *start, *current;
667 if (!r_refdef.draw2dstage)
669 Con_Printf("DrawQ_ColoredString: not in 2d rendering stage!\n");
672 if( !outcolor || *outcolor == -1 ) {
673 colorindex = STRING_COLOR_DEFAULT;
675 colorindex = *outcolor;
677 color = string_colors[colorindex];
680 len = (int)strlen( text );
682 len = min( maxlen, (int) strlen( text ) );
684 start = current = text;
686 // check for color control char
687 if( *current == STRING_COLOR_TAG ) {
694 // display the tag char?
695 if( *current == STRING_COLOR_TAG ) {
696 // only display one of the two
701 } else if( '0' <= *current && *current <= '9' ) {
704 colorindex = colorindex * 10 + (*current - '0');
705 // only read as long as it makes a valid index
706 if( colorindex >= (int)STRING_COLORS_COUNT ) {
707 // undo the last operation
713 } while( len > 0 && '0' <= *current && *current <= '9' );
715 color = string_colors[colorindex];
716 // we jump over the color tag
720 // go on and read normal text in until the next control char
721 while( len > 0 && *current != STRING_COLOR_TAG ) {
726 if( start != current ) {
728 DrawQ_String( x, y, start, current - start, scalex, scaley, basered * color[0], basegreen * color[1], baseblue * color[2], basealpha * color[3], flags );
729 // update x to be at the new start position
730 x += (current - start) * scalex;
731 // set start accordingly
736 // return the last colorindex
738 *outcolor = colorindex;
742 void DrawQ_SuperPic(float x, float y, cachepic_t *pic, float width, float height, float s1, float t1, float r1, float g1, float b1, float a1, float s2, float t2, float r2, float g2, float b2, float a2, float s3, float t3, float r3, float g3, float b3, float a3, float s4, float t4, float r4, float g4, float b4, float a4, int flags)
746 if (!r_refdef.draw2dstage)
748 Con_Printf("DrawQ_SuperPic: not in 2d rendering stage!\n");
752 if (!r_render.integer)
755 _DrawQ_ProcessDrawFlag(flags);
757 R_Mesh_VertexPointer(floats);
758 R_Mesh_ColorPointer(floats + 20);
759 R_Mesh_ResetTextureState();
765 height = pic->height;
766 R_Mesh_TexBind(0, R_GetTexture(pic->tex));
767 R_Mesh_TexCoordPointer(0, 2, floats + 12);
768 floats[12] = s1;floats[13] = t1;
769 floats[14] = s2;floats[15] = t2;
770 floats[16] = s4;floats[17] = t4;
771 floats[18] = s3;floats[19] = t3;
774 floats[2] = floats[5] = floats[8] = floats[11] = 0;
775 floats[0] = floats[9] = x;
776 floats[1] = floats[4] = y;
777 floats[3] = floats[6] = x + width;
778 floats[7] = floats[10] = y + height;
779 floats[20] = r1;floats[21] = g1;floats[22] = b1;floats[23] = a1;
780 floats[24] = r2;floats[25] = g2;floats[26] = b2;floats[27] = a2;
781 floats[28] = r4;floats[29] = g4;floats[30] = b4;floats[31] = a4;
782 floats[32] = r3;floats[33] = g3;floats[34] = b3;floats[35] = a3;
784 R_Mesh_Draw(0, 4, 2, polygonelements);
787 void DrawQ_Mesh (drawqueuemesh_t *mesh, int flags)
789 if (!r_refdef.draw2dstage)
791 Con_Printf("DrawQ_Mesh: not in 2d rendering stage!\n");
795 if (!r_render.integer)
798 _DrawQ_ProcessDrawFlag(flags);
800 R_Mesh_VertexPointer(mesh->data_vertex3f);
801 R_Mesh_ColorPointer(mesh->data_color4f);
802 R_Mesh_ResetTextureState();
803 R_Mesh_TexBind(0, R_GetTexture(mesh->texture));
804 R_Mesh_TexCoordPointer(0, 2, mesh->data_texcoord2f);
806 GL_LockArrays(0, mesh->num_vertices);
807 R_Mesh_Draw(0, mesh->num_vertices, mesh->num_triangles, mesh->data_element3i);
811 void DrawQ_LineLoop (drawqueuemesh_t *mesh, int flags)
815 if (!r_refdef.draw2dstage)
817 Con_Printf("DrawQ_LineLoop: not in 2d rendering stage!\n");
821 if (!r_render.integer)
824 _DrawQ_ProcessDrawFlag(flags);
828 qglBegin(GL_LINE_LOOP);
829 for (num = 0;num < mesh->num_vertices;num++)
831 if (mesh->data_color4f)
832 GL_Color(mesh->data_color4f[num*4+0], mesh->data_color4f[num*4+1], mesh->data_color4f[num*4+2], mesh->data_color4f[num*4+3]);
833 qglVertex2f(mesh->data_vertex3f[num*3+0], mesh->data_vertex3f[num*3+1]);
839 //LordHavoc: FIXME: this is nasty!
840 void DrawQ_LineWidth (float width)
842 if (!r_refdef.draw2dstage)
844 Con_Printf("DrawQ_LineWidth: not in 2d rendering stage!\n");
848 qglLineWidth(width);CHECKGLERROR
851 //[515]: this is old, delete
852 void DrawQ_Line (float width, float x1, float y1, float x2, float y2, float r, float g, float b, float alpha, int flags)
854 if (!r_refdef.draw2dstage)
856 Con_Printf("DrawQ_Line: not in 2d rendering stage!\n");
860 if (!r_render.integer)
865 DrawQ_LineWidth(width);
867 _DrawQ_ProcessDrawFlag(flags);
869 GL_Color(r,g,b,alpha);
878 void DrawQ_SetClipArea(float x, float y, float width, float height)
880 if (!r_refdef.draw2dstage)
882 Con_Printf("DrawQ_SetClipArea: not in 2d rendering stage!\n");
886 // We have to convert the con coords into real coords
887 // OGL uses top to bottom
888 GL_Scissor((int)(x * ((float)vid.width / vid_conwidth.integer)), (int)(y * ((float) vid.height / vid_conheight.integer)), (int)(width * ((float)vid.width / vid_conwidth.integer)), (int)(height * ((float)vid.height / vid_conheight.integer)));
890 GL_ScissorTest(true);
893 void DrawQ_ResetClipArea(void)
895 if (!r_refdef.draw2dstage)
897 Con_Printf("DrawQ_ResetClipArea: not in 2d rendering stage!\n");
900 GL_ScissorTest(false);
903 void DrawQ_Finish(void)
905 if (!r_refdef.draw2dstage)
907 Con_Printf("R_DrawQueue: not in 2d rendering stage!\n");
911 r_refdef.draw2dstage = false;
914 static float blendvertex3f[9] = {-5000, -5000, 10, 10000, -5000, 10, -5000, 10000, 10};
915 void R_DrawGamma(void)
918 if (!vid_usinghwgamma)
920 // all the blends ignore depth
921 R_Mesh_VertexPointer(blendvertex3f);
922 R_Mesh_ColorPointer(NULL);
923 R_Mesh_ResetTextureState();
926 if (v_color_enable.integer)
928 c[0] = v_color_white_r.value;
929 c[1] = v_color_white_g.value;
930 c[2] = v_color_white_b.value;
933 c[0] = c[1] = c[2] = v_contrast.value;
934 if (c[0] >= 1.01f || c[1] >= 1.01f || c[2] >= 1.01f)
936 GL_BlendFunc(GL_DST_COLOR, GL_ONE);
937 while (c[0] >= 1.01f || c[1] >= 1.01f || c[2] >= 1.01f)
939 GL_Color(bound(0, c[0] - 1, 1), bound(0, c[1] - 1, 1), bound(0, c[2] - 1, 1), 1);
940 R_Mesh_Draw(0, 3, 1, polygonelements);
941 VectorScale(c, 0.5, c);
944 if (v_color_enable.integer)
946 c[0] = v_color_black_r.value;
947 c[1] = v_color_black_g.value;
948 c[2] = v_color_black_b.value;
951 c[0] = c[1] = c[2] = v_brightness.value;
952 if (c[0] >= 0.01f || c[1] >= 0.01f || c[2] >= 0.01f)
954 GL_BlendFunc(GL_ONE, GL_ONE);
955 GL_Color(c[0], c[1], c[2], 1);
956 R_Mesh_Draw(0, 3, 1, polygonelements);