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);
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), false);
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);
505 qglViewport(r_view_x, vid.height - (r_view_y + r_view_height), r_view_width, r_view_height);
506 GL_SetupView_Mode_Ortho(0, 0, vid_conwidth.integer, vid_conheight.integer, -10, 100);
507 qglDepthFunc(GL_LEQUAL);
508 R_Mesh_Matrix(&identitymatrix);
514 r_refdef.draw2dstage = true;
517 void DrawQ_Pic(float x, float y, cachepic_t *pic, float width, float height, float red, float green, float blue, float alpha, int flags)
519 if (!r_refdef.draw2dstage)
521 Con_Printf("DrawQ_Pic: not in 2d rendering stage!\n");
524 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);
527 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)
534 if (!r_refdef.draw2dstage)
536 Con_Printf("DrawQ_String: not in 2d rendering stage!\n");
540 if (!r_render.integer)
543 if (alpha < (1.0f / 255.0f))
546 if(flags == DRAWFLAG_ADDITIVE)
547 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
548 else if(flags == DRAWFLAG_MODULATE)
549 GL_BlendFunc(GL_DST_COLOR, GL_ZERO);
550 else if(flags == DRAWFLAG_2XMODULATE)
551 GL_BlendFunc(GL_DST_COLOR,GL_SRC_COLOR);
553 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
555 GL_Color(red, green, blue, alpha);
557 memset(&m, 0, sizeof(m));
558 m.pointer_vertex = varray_vertex3f;
559 m.pointer_color = NULL;
560 m.pointer_texcoord[0] = varray_texcoord2f[0];
561 m.tex[0] = R_GetTexture(char_texture);
564 at = varray_texcoord2f[0];
565 av = varray_vertex3f;
570 for (i = 0;i < maxlen && x < vid_conwidth.integer && (num = string[i]);i++, x += w)
575 s = (num & 15)*0.0625f + (0.5f / 256.0f);
576 t = (num >> 4)*0.0625f + (0.5f / 256.0f);
577 u = 0.0625f - (1.0f / 256.0f);
578 v = 0.0625f - (1.0f / 256.0f);
579 at[ 0] = s ;at[ 1] = t ;
580 at[ 2] = s+u;at[ 3] = t ;
581 at[ 4] = s+u;at[ 5] = t+v;
582 at[ 6] = s ;at[ 7] = t+v;
583 av[ 0] = x ;av[ 1] = y ;av[ 2] = 10;
584 av[ 3] = x+w;av[ 4] = y ;av[ 5] = 10;
585 av[ 6] = x+w;av[ 7] = y+h;av[ 8] = 10;
586 av[ 9] = x ;av[10] = y+h;av[11] = 10;
590 if (batchcount >= QUADELEMENTS_MAXQUADS)
592 GL_LockArrays(0, batchcount * 4);
593 R_Mesh_Draw(0, batchcount * 4, batchcount * 2, quadelements);
596 at = varray_texcoord2f[0];
597 av = varray_vertex3f;
602 GL_LockArrays(0, batchcount * 4);
603 R_Mesh_Draw(0, batchcount * 4, batchcount * 2, quadelements);
608 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)
610 if (!r_refdef.draw2dstage)
612 Con_Printf("DrawQ_String: not in 2d rendering stage!\n");
616 if (r_textshadow.integer)
617 DrawQ_String_Real(x+scalex*0.25,y+scaley*0.25,string,maxlen,scalex,scaley,0,0,0,alpha*0.8,flags);
619 DrawQ_String_Real(x,y,string,maxlen,scalex,scaley,red,green,blue,alpha,flags);
622 // color tag printing
623 static vec4_t string_colors[] =
626 // LordHavoc: why on earth is cyan before magenta in Quake3?
627 // LordHavoc: note: Doom3 uses white for [0] and [7]
628 {0.0, 0.0, 0.0, 1.0}, // black
629 {1.0, 0.0, 0.0, 1.0}, // red
630 {0.0, 1.0, 0.0, 1.0}, // green
631 {1.0, 1.0, 0.0, 1.0}, // yellow
632 {0.0, 0.0, 1.0, 1.0}, // blue
633 {0.0, 1.0, 1.0, 1.0}, // cyan
634 {1.0, 0.0, 1.0, 1.0}, // magenta
635 {1.0, 1.0, 1.0, 1.0}, // white
636 // [515]'s BX_COLOREDTEXT extension
637 {1.0, 1.0, 1.0, 0.5}, // half transparent
638 {0.5, 0.5, 0.5, 1.0} // half brightness
639 // Black's color table
640 //{1.0, 1.0, 1.0, 1.0},
641 //{1.0, 0.0, 0.0, 1.0},
642 //{0.0, 1.0, 0.0, 1.0},
643 //{0.0, 0.0, 1.0, 1.0},
644 //{1.0, 1.0, 0.0, 1.0},
645 //{0.0, 1.0, 1.0, 1.0},
646 //{1.0, 0.0, 1.0, 1.0},
647 //{0.1, 0.1, 0.1, 1.0}
650 #define STRING_COLORS_COUNT (sizeof(string_colors) / sizeof(vec4_t))
652 // color is read and changed in the end
653 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 )
658 const char *start, *current;
660 if (!r_refdef.draw2dstage)
662 Con_Printf("DrawQ_ColoredString: not in 2d rendering stage!\n");
665 if( !outcolor || *outcolor == -1 ) {
666 colorindex = STRING_COLOR_DEFAULT;
668 colorindex = *outcolor;
670 color = string_colors[colorindex];
673 len = (int)strlen( text );
675 len = min( maxlen, (int) strlen( text ) );
677 start = current = text;
679 // check for color control char
680 if( *current == STRING_COLOR_TAG ) {
687 // display the tag char?
688 if( *current == STRING_COLOR_TAG ) {
689 // only display one of the two
694 } else if( '0' <= *current && *current <= '9' ) {
697 colorindex = colorindex * 10 + (*current - '0');
698 // only read as long as it makes a valid index
699 if( colorindex >= (int)STRING_COLORS_COUNT ) {
700 // undo the last operation
706 } while( len > 0 && '0' <= *current && *current <= '9' );
708 color = string_colors[colorindex];
709 // we jump over the color tag
713 // go on and read normal text in until the next control char
714 while( len > 0 && *current != STRING_COLOR_TAG ) {
719 if( start != current ) {
721 DrawQ_String( x, y, start, current - start, scalex, scaley, basered * color[0], basegreen * color[1], baseblue * color[2], basealpha * color[3], flags );
722 // update x to be at the new start position
723 x += (current - start) * scalex;
724 // set start accordingly
729 // return the last colorindex
731 *outcolor = colorindex;
735 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)
740 if (!r_refdef.draw2dstage)
742 Con_Printf("DrawQ_SuperPic: not in 2d rendering stage!\n");
746 if (!r_render.integer)
749 if(flags == DRAWFLAG_ADDITIVE)
750 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
751 else if(flags == DRAWFLAG_MODULATE)
752 GL_BlendFunc(GL_DST_COLOR, GL_ZERO);
753 else if(flags == DRAWFLAG_2XMODULATE)
754 GL_BlendFunc(GL_DST_COLOR,GL_SRC_COLOR);
756 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
758 memset(&m, 0, sizeof(m));
759 m.pointer_vertex = floats;
760 m.pointer_color = floats + 20;
766 height = pic->height;
767 m.tex[0] = R_GetTexture(pic->tex);
768 m.pointer_texcoord[0] = floats + 12;
769 floats[12] = s1;floats[13] = t1;
770 floats[14] = s2;floats[15] = t2;
771 floats[16] = s4;floats[17] = t4;
772 floats[18] = s3;floats[19] = t3;
776 floats[2] = floats[5] = floats[8] = floats[11] = 0;
777 floats[0] = floats[9] = x;
778 floats[1] = floats[4] = y;
779 floats[3] = floats[6] = x + width;
780 floats[7] = floats[10] = y + height;
781 floats[20] = r1;floats[21] = g1;floats[22] = b1;floats[23] = a1;
782 floats[24] = r2;floats[25] = g2;floats[26] = b2;floats[27] = a2;
783 floats[28] = r4;floats[29] = g4;floats[30] = b4;floats[31] = a4;
784 floats[32] = r3;floats[33] = g3;floats[34] = b3;floats[35] = a3;
786 R_Mesh_Draw(0, 4, 2, polygonelements);
789 void DrawQ_Mesh (drawqueuemesh_t *mesh, int flags)
793 if (!r_refdef.draw2dstage)
795 Con_Printf("DrawQ_Mesh: not in 2d rendering stage!\n");
799 if (!r_render.integer)
802 if(flags == DRAWFLAG_ADDITIVE)
803 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
804 else if(flags == DRAWFLAG_MODULATE)
805 GL_BlendFunc(GL_DST_COLOR, GL_ZERO);
806 else if(flags == DRAWFLAG_2XMODULATE)
807 GL_BlendFunc(GL_DST_COLOR,GL_SRC_COLOR);
809 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
811 memset(&m, 0, sizeof(m));
812 m.pointer_vertex = mesh->data_vertex3f;
813 m.pointer_color = mesh->data_color4f;
814 m.tex[0] = R_GetTexture(mesh->texture);
816 m.pointer_texcoord[0] = mesh->data_texcoord2f;
819 GL_LockArrays(0, mesh->num_vertices);
820 R_Mesh_Draw(0, mesh->num_vertices, mesh->num_triangles, mesh->data_element3i);
824 void DrawQ_LineLoop (drawqueuemesh_t *mesh, int flags)
828 if (!r_refdef.draw2dstage)
830 Con_Printf("DrawQ_LineLoop: not in 2d rendering stage!\n");
834 if (!r_render.integer)
837 if(flags == DRAWFLAG_ADDITIVE)
838 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
839 else if(flags == DRAWFLAG_MODULATE)
840 GL_BlendFunc(GL_DST_COLOR, GL_ZERO);
841 else if(flags == DRAWFLAG_2XMODULATE)
842 GL_BlendFunc(GL_DST_COLOR,GL_SRC_COLOR);
844 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
847 qglBegin(GL_LINE_LOOP);
848 for (num = 0;num < mesh->num_vertices;num++)
850 if (mesh->data_color4f)
851 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]);
852 qglVertex2f(mesh->data_vertex3f[num*3+0], mesh->data_vertex3f[num*3+1]);
857 //LordHavoc: FIXME: this is nasty!
858 void DrawQ_LineWidth (float width)
860 if (!r_refdef.draw2dstage)
862 Con_Printf("DrawQ_LineWidth: not in 2d rendering stage!\n");
868 //[515]: this is old, delete
869 void DrawQ_Line (float width, float x1, float y1, float x2, float y2, float r, float g, float b, float alpha, int flags)
871 if (!r_refdef.draw2dstage)
873 Con_Printf("DrawQ_Line: not in 2d rendering stage!\n");
877 if (!r_render.integer)
881 DrawQ_LineWidth(width);
883 if(flags == DRAWFLAG_ADDITIVE)
884 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
885 else if(flags == DRAWFLAG_MODULATE)
886 GL_BlendFunc(GL_DST_COLOR, GL_ZERO);
887 else if(flags == DRAWFLAG_2XMODULATE)
888 GL_BlendFunc(GL_DST_COLOR,GL_SRC_COLOR);
890 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
892 GL_Color(r,g,b,alpha);
899 void DrawQ_SetClipArea(float x, float y, float width, float height)
901 if (!r_refdef.draw2dstage)
903 Con_Printf("DrawQ_SetClipArea: not in 2d rendering stage!\n");
907 // We have to convert the con coords into real coords
908 // OGL uses top to bottom
909 GL_Scissor(x * ((float)vid.width / vid_conwidth.integer), y * ((float) vid.height / vid_conheight.integer), width * ((float)vid.width / vid_conwidth.integer), height * ((float)vid.height / vid_conheight.integer));
911 GL_ScissorTest(true);
914 void DrawQ_ResetClipArea(void)
916 if (!r_refdef.draw2dstage)
918 Con_Printf("DrawQ_ResetClipArea: not in 2d rendering stage!\n");
921 GL_ScissorTest(false);
924 void DrawQ_Finish(void)
926 if (!r_refdef.draw2dstage)
928 Con_Printf("R_DrawQueue: not in 2d rendering stage!\n");
932 r_refdef.draw2dstage = false;
935 static float blendvertex3f[9] = {-5000, -5000, 10, 10000, -5000, 10, -5000, 10000, 10};
936 void R_DrawGamma(void)
940 if (!vid_usinghwgamma)
942 // all the blends ignore depth
943 memset(&m, 0, sizeof(m));
944 m.pointer_vertex = blendvertex3f;
948 if (v_color_enable.integer)
950 c[0] = v_color_white_r.value;
951 c[1] = v_color_white_g.value;
952 c[2] = v_color_white_b.value;
955 c[0] = c[1] = c[2] = v_contrast.value;
956 if (c[0] >= 1.01f || c[1] >= 1.01f || c[2] >= 1.01f)
958 GL_BlendFunc(GL_DST_COLOR, GL_ONE);
959 while (c[0] >= 1.01f || c[1] >= 1.01f || c[2] >= 1.01f)
961 GL_Color(bound(0, c[0] - 1, 1), bound(0, c[1] - 1, 1), bound(0, c[2] - 1, 1), 1);
962 R_Mesh_Draw(0, 3, 1, polygonelements);
963 VectorScale(c, 0.5, c);
966 if (v_color_enable.integer)
968 c[0] = v_color_black_r.value;
969 c[1] = v_color_black_g.value;
970 c[2] = v_color_black_b.value;
973 c[0] = c[1] = c[2] = v_brightness.value;
974 if (c[0] >= 0.01f || c[1] >= 0.01f || c[2] >= 0.01f)
976 GL_BlendFunc(GL_ONE, GL_ONE);
977 GL_Color(c[0], c[1], c[2], 1);
978 R_Mesh_Draw(0, 3, 1, polygonelements);