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)
532 float vertex3f[QUADELEMENTS_MAXQUADS*4*3];
533 float texcoord2f[QUADELEMENTS_MAXQUADS*4*2];
535 if (!r_refdef.draw2dstage)
537 Con_Printf("DrawQ_String: not in 2d rendering stage!\n");
541 if (!r_render.integer)
544 if (alpha < (1.0f / 255.0f))
547 if(flags == DRAWFLAG_ADDITIVE)
548 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
549 else if(flags == DRAWFLAG_MODULATE)
550 GL_BlendFunc(GL_DST_COLOR, GL_ZERO);
551 else if(flags == DRAWFLAG_2XMODULATE)
552 GL_BlendFunc(GL_DST_COLOR,GL_SRC_COLOR);
554 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
556 GL_Color(red, green, blue, alpha);
558 R_Mesh_VertexPointer(vertex3f);
559 R_Mesh_ColorPointer(NULL);
560 R_Mesh_ResetTextureState();
561 R_Mesh_TexBind(0, R_GetTexture(char_texture));
562 R_Mesh_TexCoordPointer(0, 2, texcoord2f);
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);
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)
739 if (!r_refdef.draw2dstage)
741 Con_Printf("DrawQ_SuperPic: not in 2d rendering stage!\n");
745 if (!r_render.integer)
748 if(flags == DRAWFLAG_ADDITIVE)
749 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
750 else if(flags == DRAWFLAG_MODULATE)
751 GL_BlendFunc(GL_DST_COLOR, GL_ZERO);
752 else if(flags == DRAWFLAG_2XMODULATE)
753 GL_BlendFunc(GL_DST_COLOR,GL_SRC_COLOR);
755 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
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 if(flags == DRAWFLAG_ADDITIVE)
799 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
800 else if(flags == DRAWFLAG_MODULATE)
801 GL_BlendFunc(GL_DST_COLOR, GL_ZERO);
802 else if(flags == DRAWFLAG_2XMODULATE)
803 GL_BlendFunc(GL_DST_COLOR,GL_SRC_COLOR);
805 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
807 R_Mesh_VertexPointer(mesh->data_vertex3f);
808 R_Mesh_ColorPointer(mesh->data_color4f);
809 R_Mesh_ResetTextureState();
810 R_Mesh_TexBind(0, R_GetTexture(mesh->texture));
811 R_Mesh_TexCoordPointer(0, 2, mesh->data_texcoord2f);
813 GL_LockArrays(0, mesh->num_vertices);
814 R_Mesh_Draw(0, mesh->num_vertices, mesh->num_triangles, mesh->data_element3i);
818 void DrawQ_LineLoop (drawqueuemesh_t *mesh, int flags)
822 if (!r_refdef.draw2dstage)
824 Con_Printf("DrawQ_LineLoop: not in 2d rendering stage!\n");
828 if (!r_render.integer)
831 if(flags == DRAWFLAG_ADDITIVE)
832 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
833 else if(flags == DRAWFLAG_MODULATE)
834 GL_BlendFunc(GL_DST_COLOR, GL_ZERO);
835 else if(flags == DRAWFLAG_2XMODULATE)
836 GL_BlendFunc(GL_DST_COLOR,GL_SRC_COLOR);
838 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
841 qglBegin(GL_LINE_LOOP);
842 for (num = 0;num < mesh->num_vertices;num++)
844 if (mesh->data_color4f)
845 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]);
846 qglVertex2f(mesh->data_vertex3f[num*3+0], mesh->data_vertex3f[num*3+1]);
851 //LordHavoc: FIXME: this is nasty!
852 void DrawQ_LineWidth (float width)
854 if (!r_refdef.draw2dstage)
856 Con_Printf("DrawQ_LineWidth: not in 2d rendering stage!\n");
862 //[515]: this is old, delete
863 void DrawQ_Line (float width, float x1, float y1, float x2, float y2, float r, float g, float b, float alpha, int flags)
865 if (!r_refdef.draw2dstage)
867 Con_Printf("DrawQ_Line: not in 2d rendering stage!\n");
871 if (!r_render.integer)
875 DrawQ_LineWidth(width);
877 if(flags == DRAWFLAG_ADDITIVE)
878 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
879 else if(flags == DRAWFLAG_MODULATE)
880 GL_BlendFunc(GL_DST_COLOR, GL_ZERO);
881 else if(flags == DRAWFLAG_2XMODULATE)
882 GL_BlendFunc(GL_DST_COLOR,GL_SRC_COLOR);
884 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
886 GL_Color(r,g,b,alpha);
893 void DrawQ_SetClipArea(float x, float y, float width, float height)
895 if (!r_refdef.draw2dstage)
897 Con_Printf("DrawQ_SetClipArea: not in 2d rendering stage!\n");
901 // We have to convert the con coords into real coords
902 // OGL uses top to bottom
903 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)));
905 GL_ScissorTest(true);
908 void DrawQ_ResetClipArea(void)
910 if (!r_refdef.draw2dstage)
912 Con_Printf("DrawQ_ResetClipArea: not in 2d rendering stage!\n");
915 GL_ScissorTest(false);
918 void DrawQ_Finish(void)
920 if (!r_refdef.draw2dstage)
922 Con_Printf("R_DrawQueue: not in 2d rendering stage!\n");
926 r_refdef.draw2dstage = false;
929 static float blendvertex3f[9] = {-5000, -5000, 10, 10000, -5000, 10, -5000, 10000, 10};
930 void R_DrawGamma(void)
933 if (!vid_usinghwgamma)
935 // all the blends ignore depth
936 R_Mesh_VertexPointer(blendvertex3f);
937 R_Mesh_ColorPointer(NULL);
938 R_Mesh_ResetTextureState();
941 if (v_color_enable.integer)
943 c[0] = v_color_white_r.value;
944 c[1] = v_color_white_g.value;
945 c[2] = v_color_white_b.value;
948 c[0] = c[1] = c[2] = v_contrast.value;
949 if (c[0] >= 1.01f || c[1] >= 1.01f || c[2] >= 1.01f)
951 GL_BlendFunc(GL_DST_COLOR, GL_ONE);
952 while (c[0] >= 1.01f || c[1] >= 1.01f || c[2] >= 1.01f)
954 GL_Color(bound(0, c[0] - 1, 1), bound(0, c[1] - 1, 1), bound(0, c[2] - 1, 1), 1);
955 R_Mesh_Draw(0, 3, 1, polygonelements);
956 VectorScale(c, 0.5, c);
959 if (v_color_enable.integer)
961 c[0] = v_color_black_r.value;
962 c[1] = v_color_black_g.value;
963 c[2] = v_color_black_b.value;
966 c[0] = c[1] = c[2] = v_brightness.value;
967 if (c[0] >= 0.01f || c[1] >= 0.01f || c[2] >= 0.01f)
969 GL_BlendFunc(GL_ONE, GL_ONE);
970 GL_Color(c[0], c[1], c[2], 1);
971 R_Mesh_Draw(0, 3, 1, polygonelements);