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);
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)
533 float vertex3f[QUADELEMENTS_MAXQUADS*4*3];
534 float texcoord2f[QUADELEMENTS_MAXQUADS*4*2];
536 if (!r_refdef.draw2dstage)
538 Con_Printf("DrawQ_String: not in 2d rendering stage!\n");
542 if (!r_render.integer)
545 if (alpha < (1.0f / 255.0f))
548 if(flags == DRAWFLAG_ADDITIVE)
549 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
550 else if(flags == DRAWFLAG_MODULATE)
551 GL_BlendFunc(GL_DST_COLOR, GL_ZERO);
552 else if(flags == DRAWFLAG_2XMODULATE)
553 GL_BlendFunc(GL_DST_COLOR,GL_SRC_COLOR);
555 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
557 GL_Color(red, green, blue, alpha);
559 memset(&m, 0, sizeof(m));
560 m.pointer_vertex = vertex3f;
561 m.pointer_color = NULL;
562 m.pointer_texcoord[0] = texcoord2f;
563 m.tex[0] = R_GetTexture(char_texture);
572 for (i = 0;i < maxlen && x < vid_conwidth.integer && (num = string[i]);i++, x += w)
577 s = (num & 15)*0.0625f + (0.5f / 256.0f);
578 t = (num >> 4)*0.0625f + (0.5f / 256.0f);
579 u = 0.0625f - (1.0f / 256.0f);
580 v = 0.0625f - (1.0f / 256.0f);
581 at[ 0] = s ;at[ 1] = t ;
582 at[ 2] = s+u;at[ 3] = t ;
583 at[ 4] = s+u;at[ 5] = t+v;
584 at[ 6] = s ;at[ 7] = t+v;
585 av[ 0] = x ;av[ 1] = y ;av[ 2] = 10;
586 av[ 3] = x+w;av[ 4] = y ;av[ 5] = 10;
587 av[ 6] = x+w;av[ 7] = y+h;av[ 8] = 10;
588 av[ 9] = x ;av[10] = y+h;av[11] = 10;
592 if (batchcount >= QUADELEMENTS_MAXQUADS)
594 GL_LockArrays(0, batchcount * 4);
595 R_Mesh_Draw(0, batchcount * 4, batchcount * 2, quadelements);
604 GL_LockArrays(0, batchcount * 4);
605 R_Mesh_Draw(0, batchcount * 4, batchcount * 2, quadelements);
610 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)
612 if (!r_refdef.draw2dstage)
614 Con_Printf("DrawQ_String: not in 2d rendering stage!\n");
618 if (r_textshadow.integer)
619 DrawQ_String_Real(x+scalex*0.25,y+scaley*0.25,string,maxlen,scalex,scaley,0,0,0,alpha*0.8,flags);
621 DrawQ_String_Real(x,y,string,maxlen,scalex,scaley,red,green,blue,alpha,flags);
624 // color tag printing
625 static vec4_t string_colors[] =
628 // LordHavoc: why on earth is cyan before magenta in Quake3?
629 // LordHavoc: note: Doom3 uses white for [0] and [7]
630 {0.0, 0.0, 0.0, 1.0}, // black
631 {1.0, 0.0, 0.0, 1.0}, // red
632 {0.0, 1.0, 0.0, 1.0}, // green
633 {1.0, 1.0, 0.0, 1.0}, // yellow
634 {0.0, 0.0, 1.0, 1.0}, // blue
635 {0.0, 1.0, 1.0, 1.0}, // cyan
636 {1.0, 0.0, 1.0, 1.0}, // magenta
637 {1.0, 1.0, 1.0, 1.0}, // white
638 // [515]'s BX_COLOREDTEXT extension
639 {1.0, 1.0, 1.0, 0.5}, // half transparent
640 {0.5, 0.5, 0.5, 1.0} // half brightness
641 // Black's color table
642 //{1.0, 1.0, 1.0, 1.0},
643 //{1.0, 0.0, 0.0, 1.0},
644 //{0.0, 1.0, 0.0, 1.0},
645 //{0.0, 0.0, 1.0, 1.0},
646 //{1.0, 1.0, 0.0, 1.0},
647 //{0.0, 1.0, 1.0, 1.0},
648 //{1.0, 0.0, 1.0, 1.0},
649 //{0.1, 0.1, 0.1, 1.0}
652 #define STRING_COLORS_COUNT (sizeof(string_colors) / sizeof(vec4_t))
654 // color is read and changed in the end
655 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 )
660 const char *start, *current;
662 if (!r_refdef.draw2dstage)
664 Con_Printf("DrawQ_ColoredString: not in 2d rendering stage!\n");
667 if( !outcolor || *outcolor == -1 ) {
668 colorindex = STRING_COLOR_DEFAULT;
670 colorindex = *outcolor;
672 color = string_colors[colorindex];
675 len = (int)strlen( text );
677 len = min( maxlen, (int) strlen( text ) );
679 start = current = text;
681 // check for color control char
682 if( *current == STRING_COLOR_TAG ) {
689 // display the tag char?
690 if( *current == STRING_COLOR_TAG ) {
691 // only display one of the two
696 } else if( '0' <= *current && *current <= '9' ) {
699 colorindex = colorindex * 10 + (*current - '0');
700 // only read as long as it makes a valid index
701 if( colorindex >= (int)STRING_COLORS_COUNT ) {
702 // undo the last operation
708 } while( len > 0 && '0' <= *current && *current <= '9' );
710 color = string_colors[colorindex];
711 // we jump over the color tag
715 // go on and read normal text in until the next control char
716 while( len > 0 && *current != STRING_COLOR_TAG ) {
721 if( start != current ) {
723 DrawQ_String( x, y, start, current - start, scalex, scaley, basered * color[0], basegreen * color[1], baseblue * color[2], basealpha * color[3], flags );
724 // update x to be at the new start position
725 x += (current - start) * scalex;
726 // set start accordingly
731 // return the last colorindex
733 *outcolor = colorindex;
737 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)
742 if (!r_refdef.draw2dstage)
744 Con_Printf("DrawQ_SuperPic: not in 2d rendering stage!\n");
748 if (!r_render.integer)
751 if(flags == DRAWFLAG_ADDITIVE)
752 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
753 else if(flags == DRAWFLAG_MODULATE)
754 GL_BlendFunc(GL_DST_COLOR, GL_ZERO);
755 else if(flags == DRAWFLAG_2XMODULATE)
756 GL_BlendFunc(GL_DST_COLOR,GL_SRC_COLOR);
758 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
760 memset(&m, 0, sizeof(m));
761 m.pointer_vertex = floats;
762 m.pointer_color = floats + 20;
768 height = pic->height;
769 m.tex[0] = R_GetTexture(pic->tex);
770 m.pointer_texcoord[0] = floats + 12;
771 floats[12] = s1;floats[13] = t1;
772 floats[14] = s2;floats[15] = t2;
773 floats[16] = s4;floats[17] = t4;
774 floats[18] = s3;floats[19] = t3;
778 floats[2] = floats[5] = floats[8] = floats[11] = 0;
779 floats[0] = floats[9] = x;
780 floats[1] = floats[4] = y;
781 floats[3] = floats[6] = x + width;
782 floats[7] = floats[10] = y + height;
783 floats[20] = r1;floats[21] = g1;floats[22] = b1;floats[23] = a1;
784 floats[24] = r2;floats[25] = g2;floats[26] = b2;floats[27] = a2;
785 floats[28] = r4;floats[29] = g4;floats[30] = b4;floats[31] = a4;
786 floats[32] = r3;floats[33] = g3;floats[34] = b3;floats[35] = a3;
788 R_Mesh_Draw(0, 4, 2, polygonelements);
791 void DrawQ_Mesh (drawqueuemesh_t *mesh, int flags)
795 if (!r_refdef.draw2dstage)
797 Con_Printf("DrawQ_Mesh: not in 2d rendering stage!\n");
801 if (!r_render.integer)
804 if(flags == DRAWFLAG_ADDITIVE)
805 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
806 else if(flags == DRAWFLAG_MODULATE)
807 GL_BlendFunc(GL_DST_COLOR, GL_ZERO);
808 else if(flags == DRAWFLAG_2XMODULATE)
809 GL_BlendFunc(GL_DST_COLOR,GL_SRC_COLOR);
811 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
813 memset(&m, 0, sizeof(m));
814 m.pointer_vertex = mesh->data_vertex3f;
815 m.pointer_color = mesh->data_color4f;
816 m.tex[0] = R_GetTexture(mesh->texture);
818 m.pointer_texcoord[0] = mesh->data_texcoord2f;
821 GL_LockArrays(0, mesh->num_vertices);
822 R_Mesh_Draw(0, mesh->num_vertices, mesh->num_triangles, mesh->data_element3i);
826 void DrawQ_LineLoop (drawqueuemesh_t *mesh, int flags)
830 if (!r_refdef.draw2dstage)
832 Con_Printf("DrawQ_LineLoop: not in 2d rendering stage!\n");
836 if (!r_render.integer)
839 if(flags == DRAWFLAG_ADDITIVE)
840 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
841 else if(flags == DRAWFLAG_MODULATE)
842 GL_BlendFunc(GL_DST_COLOR, GL_ZERO);
843 else if(flags == DRAWFLAG_2XMODULATE)
844 GL_BlendFunc(GL_DST_COLOR,GL_SRC_COLOR);
846 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
849 qglBegin(GL_LINE_LOOP);
850 for (num = 0;num < mesh->num_vertices;num++)
852 if (mesh->data_color4f)
853 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]);
854 qglVertex2f(mesh->data_vertex3f[num*3+0], mesh->data_vertex3f[num*3+1]);
859 //LordHavoc: FIXME: this is nasty!
860 void DrawQ_LineWidth (float width)
862 if (!r_refdef.draw2dstage)
864 Con_Printf("DrawQ_LineWidth: not in 2d rendering stage!\n");
870 //[515]: this is old, delete
871 void DrawQ_Line (float width, float x1, float y1, float x2, float y2, float r, float g, float b, float alpha, int flags)
873 if (!r_refdef.draw2dstage)
875 Con_Printf("DrawQ_Line: not in 2d rendering stage!\n");
879 if (!r_render.integer)
883 DrawQ_LineWidth(width);
885 if(flags == DRAWFLAG_ADDITIVE)
886 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
887 else if(flags == DRAWFLAG_MODULATE)
888 GL_BlendFunc(GL_DST_COLOR, GL_ZERO);
889 else if(flags == DRAWFLAG_2XMODULATE)
890 GL_BlendFunc(GL_DST_COLOR,GL_SRC_COLOR);
892 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
894 GL_Color(r,g,b,alpha);
901 void DrawQ_SetClipArea(float x, float y, float width, float height)
903 if (!r_refdef.draw2dstage)
905 Con_Printf("DrawQ_SetClipArea: not in 2d rendering stage!\n");
909 // We have to convert the con coords into real coords
910 // OGL uses top to bottom
911 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)));
913 GL_ScissorTest(true);
916 void DrawQ_ResetClipArea(void)
918 if (!r_refdef.draw2dstage)
920 Con_Printf("DrawQ_ResetClipArea: not in 2d rendering stage!\n");
923 GL_ScissorTest(false);
926 void DrawQ_Finish(void)
928 if (!r_refdef.draw2dstage)
930 Con_Printf("R_DrawQueue: not in 2d rendering stage!\n");
934 r_refdef.draw2dstage = false;
937 static float blendvertex3f[9] = {-5000, -5000, 10, 10000, -5000, 10, -5000, 10000, 10};
938 void R_DrawGamma(void)
942 if (!vid_usinghwgamma)
944 // all the blends ignore depth
945 memset(&m, 0, sizeof(m));
946 m.pointer_vertex = blendvertex3f;
950 if (v_color_enable.integer)
952 c[0] = v_color_white_r.value;
953 c[1] = v_color_white_g.value;
954 c[2] = v_color_white_b.value;
957 c[0] = c[1] = c[2] = v_contrast.value;
958 if (c[0] >= 1.01f || c[1] >= 1.01f || c[2] >= 1.01f)
960 GL_BlendFunc(GL_DST_COLOR, GL_ONE);
961 while (c[0] >= 1.01f || c[1] >= 1.01f || c[2] >= 1.01f)
963 GL_Color(bound(0, c[0] - 1, 1), bound(0, c[1] - 1, 1), bound(0, c[2] - 1, 1), 1);
964 R_Mesh_Draw(0, 3, 1, polygonelements);
965 VectorScale(c, 0.5, c);
968 if (v_color_enable.integer)
970 c[0] = v_color_black_r.value;
971 c[1] = v_color_black_g.value;
972 c[2] = v_color_black_b.value;
975 c[0] = c[1] = c[2] = v_brightness.value;
976 if (c[0] >= 0.01f || c[1] >= 0.01f || c[2] >= 0.01f)
978 GL_BlendFunc(GL_ONE, GL_ONE);
979 GL_Color(c[0], c[1], c[2], 1);
980 R_Mesh_Draw(0, 3, 1, polygonelements);