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.
28 static rtexture_t *char_texture;
30 //=============================================================================
31 /* Support Routines */
33 #define MAX_CACHED_PICS 256
34 #define CACHEPICHASHSIZE 256
35 static cachepic_t *cachepichash[CACHEPICHASHSIZE];
36 static cachepic_t cachepics[MAX_CACHED_PICS];
37 static int numcachepics;
39 static rtexturepool_t *drawtexturepool;
41 static qbyte concharimage[13468] =
46 extern qbyte *LoadTGA (qbyte *f, int matchwidth, int matchheight);
48 static rtexture_t *draw_generateconchars(void)
51 qbyte buffer[65536][4], *data = NULL;
55 data = LoadTGA (concharimage, 256, 256);
58 for (i = 0;i < 8192;i++)
60 random = lhrandom (0.0,1.0);
61 buffer[i][0] = 83 + (qbyte)(random * 64);
62 buffer[i][1] = 71 + (qbyte)(random * 32);
63 buffer[i][2] = 23 + (qbyte)(random * 16);
64 buffer[i][3] = data[i*4+0];
67 for (i = 8192;i < 32768;i++)
69 random = lhrandom (0.0,1.0);
70 buffer[i][0] = 95 + (qbyte)(random * 64);
71 buffer[i][1] = 95 + (qbyte)(random * 64);
72 buffer[i][2] = 95 + (qbyte)(random * 64);
73 buffer[i][3] = data[i*4+0];
76 for (i = 32768;i < 40960;i++)
78 random = lhrandom (0.0,1.0);
79 buffer[i][0] = 83 + (qbyte)(random * 64);
80 buffer[i][1] = 71 + (qbyte)(random * 32);
81 buffer[i][2] = 23 + (qbyte)(random * 16);
82 buffer[i][3] = data[i*4+0];
85 for (i = 40960;i < 65536;i++)
87 random = lhrandom (0.0,1.0);
88 buffer[i][0] = 96 + (qbyte)(random * 64);
89 buffer[i][1] = 43 + (qbyte)(random * 32);
90 buffer[i][2] = 27 + (qbyte)(random * 32);
91 buffer[i][3] = data[i*4+0];
95 Image_WriteTGARGBA ("gfx/generated_conchars.tga", 256, 256, &buffer[0][0]);
99 return R_LoadTexture2D(drawtexturepool, "conchars", 256, 256, &buffer[0][0], TEXTYPE_RGBA, TEXF_ALPHA | TEXF_PRECACHE, NULL);
102 static qbyte pointerimage[256] =
122 static rtexture_t *draw_generatemousepointer(void)
125 qbyte buffer[256][4];
126 for (i = 0;i < 256;i++)
128 if (pointerimage[i] == '.')
137 buffer[i][0] = (pointerimage[i] - '0') * 16;
138 buffer[i][1] = (pointerimage[i] - '0') * 16;
139 buffer[i][2] = (pointerimage[i] - '0') * 16;
143 return R_LoadTexture2D(drawtexturepool, "mousepointer", 16, 16, &buffer[0][0], TEXTYPE_RGBA, TEXF_ALPHA | TEXF_PRECACHE, NULL);
146 // must match NUMCROSSHAIRS in r_crosshairs.c
147 #define NUMCROSSHAIRS 5
149 static qbyte *crosshairtexdata[NUMCROSSHAIRS] =
237 static rtexture_t *draw_generatecrosshair(int num)
241 qbyte data[16*16][4];
242 in = crosshairtexdata[num];
243 for (i = 0;i < 16*16;i++)
257 data[i][3] = (qbyte) ((int) (in[i] - '0') * 255 / 7);
260 return R_LoadTexture2D(drawtexturepool, va("crosshair%i", num), 16, 16, &data[0][0], TEXTYPE_RGBA, TEXF_ALPHA | TEXF_PRECACHE, NULL);
263 static rtexture_t *draw_generateditherpattern(void)
268 for (y = 0;y < 8;y++)
270 for (x = 0;x < 8;x++)
272 data[(y*8+x)*4+0] = data[(y*8+x)*4+1] = data[(y*8+x)*4+2] = ((x^y) & 4) ? 255 : 0;
273 data[(y*8+x)*4+3] = 255;
276 return R_LoadTexture2D(drawtexturepool, "ditherpattern", 8, 8, data, TEXTYPE_RGBA, TEXF_FORCENEAREST | TEXF_PRECACHE, NULL);
279 memset(data, 255, sizeof(data));
280 data[0] = data[1] = data[2] = data[12] = data[13] = data[14] = 0;
281 return R_LoadTexture2D(drawtexturepool, "ditherpattern", 2, 2, data, TEXTYPE_RGBA, TEXF_FORCENEAREST | TEXF_PRECACHE, NULL);
290 // FIXME: move this to client somehow
291 cachepic_t *Draw_CachePic (const char *path, qboolean persistent)
298 if (!strncmp(CLVIDEOPREFIX, path, sizeof(CLVIDEOPREFIX) - 1)) {
301 video = CL_GetVideo(path);
306 crc = CRC_Block(path, strlen(path));
307 hashkey = ((crc >> 8) ^ crc) % CACHEPICHASHSIZE;
308 for (pic = cachepichash[hashkey];pic;pic = pic->chain)
309 if (!strcmp (path, pic->name))
312 if (numcachepics == MAX_CACHED_PICS)
314 Con_Printf ("Draw_CachePic: numcachepics == MAX_CACHED_PICS");
315 // FIXME: support NULL in callers?
316 return cachepics; // return the first one
318 pic = cachepics + (numcachepics++);
319 strlcpy (pic->name, path, sizeof(pic->name));
321 pic->chain = cachepichash[hashkey];
322 cachepichash[hashkey] = pic;
326 flags |= TEXF_PRECACHE;
327 if (!strcmp(path, "gfx/colorcontrol/ditherpattern.tga"))
330 // load the pic from disk
331 pic->tex = loadtextureimage(drawtexturepool, path, 0, 0, false, flags);
332 if (pic->tex == NULL && !strncmp(path, "gfx/", 4))
334 // compatibility with older versions
335 pic->tex = loadtextureimage(drawtexturepool, path + 4, 0, 0, false, flags);
336 // failed to find gfx/whatever.tga or similar, try the wad
337 if (pic->tex == NULL && (p = W_GetLumpName (path + 4)))
339 if (!strcmp(path, "gfx/conchars"))
342 // conchars is a raw image and with the wrong transparent color
344 for (i = 0;i < 128 * 128;i++)
347 pic->tex = R_LoadTexture2D(drawtexturepool, path, 128, 128, pix, TEXTYPE_PALETTE, flags, palette_complete);
350 pic->tex = R_LoadTexture2D(drawtexturepool, path, p->width, p->height, p->data, TEXTYPE_PALETTE, flags, palette_complete);
354 if (pic->tex == NULL && !strcmp(path, "gfx/conchars"))
355 pic->tex = draw_generateconchars();
356 if (pic->tex == NULL && !strcmp(path, "ui/mousepointer.tga"))
357 pic->tex = draw_generatemousepointer();
358 if (pic->tex == NULL && !strcmp(path, "gfx/prydoncursor001.tga"))
359 pic->tex = draw_generatemousepointer();
360 if (pic->tex == NULL && !strcmp(path, "gfx/crosshair1.tga"))
361 pic->tex = draw_generatecrosshair(0);
362 if (pic->tex == NULL && !strcmp(path, "gfx/crosshair2.tga"))
363 pic->tex = draw_generatecrosshair(1);
364 if (pic->tex == NULL && !strcmp(path, "gfx/crosshair3.tga"))
365 pic->tex = draw_generatecrosshair(2);
366 if (pic->tex == NULL && !strcmp(path, "gfx/crosshair4.tga"))
367 pic->tex = draw_generatecrosshair(3);
368 if (pic->tex == NULL && !strcmp(path, "gfx/crosshair5.tga"))
369 pic->tex = draw_generatecrosshair(4);
370 if (pic->tex == NULL && !strcmp(path, "gfx/colorcontrol/ditherpattern.tga"))
371 pic->tex = draw_generateditherpattern();
372 if (pic->tex == NULL)
374 Con_Printf("Draw_CachePic: failed to load %s\n", path);
375 pic->tex = r_texture_notexture;
378 pic->width = R_TextureWidth(pic->tex);
379 pic->height = R_TextureHeight(pic->tex);
383 cachepic_t *Draw_NewPic(const char *picname, int width, int height, int alpha, qbyte *pixels)
388 crc = CRC_Block(picname, strlen(picname));
389 hashkey = ((crc >> 8) ^ crc) % CACHEPICHASHSIZE;
390 for (pic = cachepichash[hashkey];pic;pic = pic->chain)
391 if (!strcmp (picname, pic->name))
396 if (pic->tex && pic->width == width && pic->height == height)
398 R_UpdateTexture(pic->tex, pixels);
406 if (numcachepics == MAX_CACHED_PICS)
408 Con_Printf ("Draw_NewPic: numcachepics == MAX_CACHED_PICS");
409 // FIXME: support NULL in callers?
410 return cachepics; // return the first one
412 pic = cachepics + (numcachepics++);
413 strcpy (pic->name, picname);
415 pic->chain = cachepichash[hashkey];
416 cachepichash[hashkey] = pic;
421 pic->height = height;
423 R_FreeTexture(pic->tex);
424 pic->tex = R_LoadTexture2D(drawtexturepool, picname, width, height, pixels, TEXTYPE_RGBA, alpha ? TEXF_ALPHA : 0, NULL);
428 void Draw_FreePic(const char *picname)
433 // this doesn't really free the pic, but does free it's texture
434 crc = CRC_Block(picname, strlen(picname));
435 hashkey = ((crc >> 8) ^ crc) % CACHEPICHASHSIZE;
436 for (pic = cachepichash[hashkey];pic;pic = pic->chain)
438 if (!strcmp (picname, pic->name) && pic->tex)
440 R_FreeTexture(pic->tex);
453 static void gl_draw_start(void)
455 drawtexturepool = R_AllocTexturePool();
458 memset(cachepichash, 0, sizeof(cachepichash));
460 char_texture = Draw_CachePic("gfx/conchars", true)->tex;
463 static void gl_draw_shutdown(void)
465 R_FreeTexturePool(&drawtexturepool);
468 memset(cachepichash, 0, sizeof(cachepichash));
471 static void gl_draw_newmap(void)
475 void GL_Draw_Init (void)
478 memset(cachepichash, 0, sizeof(cachepichash));
480 R_RegisterModule("GL_Draw", gl_draw_start, gl_draw_shutdown, gl_draw_newmap);
483 float blendvertex3f[9] = {-5000, -5000, 10, 10000, -5000, 10, -5000, 10000, 10};
485 int quadelements[768];
486 void R_DrawQueue(void)
488 int pos, num, chartexnum, texnum, batch;
489 float x, y, w, h, s, t, u, v, *av, *at, c[4];
495 drawqueuemesh_t *mesh;
498 if (!r_render.integer)
501 if (!quadelements[1])
503 // elements for rendering a series of quads as triangles
504 for (batch = 0, pos = 0, num = 0;batch < 128;batch++, num += 4)
506 quadelements[pos++] = num;
507 quadelements[pos++] = num + 1;
508 quadelements[pos++] = num + 2;
509 quadelements[pos++] = num;
510 quadelements[pos++] = num + 2;
511 quadelements[pos++] = num + 3;
515 r_view_width = bound(0, r_refdef.width, vid.width);
516 r_view_height = bound(0, r_refdef.height, vid.height);
518 r_view_x = bound(0, r_refdef.x, vid.width - r_refdef.width);
519 r_view_y = bound(0, r_refdef.y, vid.height - r_refdef.height);
521 r_view_fov_x = bound(0.1, r_refdef.fov_x, 170);
522 r_view_fov_y = bound(0.1, r_refdef.fov_y, 170);
523 r_view_matrix = r_refdef.viewentitymatrix;
524 GL_ColorMask(r_refdef.colormask[0], r_refdef.colormask[1], r_refdef.colormask[2], 1);
526 qglViewport(r_view_x, vid.height - (r_view_y + r_view_height), r_view_width, r_view_height);
527 GL_SetupView_Mode_Ortho(0, 0, vid_conwidth.integer, vid_conheight.integer, -10, 100);
528 qglDepthFunc(GL_LEQUAL);
529 R_Mesh_Matrix(&r_identitymatrix);
531 chartexnum = R_GetTexture(char_texture);
533 memset(&m, 0, sizeof(m));
542 for (pos = 0;pos < r_refdef.drawqueuesize;pos += ((drawqueue_t *)(r_refdef.drawqueue + pos))->size)
544 dq = (drawqueue_t *)(r_refdef.drawqueue + pos);
547 if(dq->flags == DRAWFLAG_ADDITIVE)
548 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
549 else if(dq->flags == DRAWFLAG_MODULATE)
550 GL_BlendFunc(GL_DST_COLOR, GL_ZERO);
551 else if(dq->flags == DRAWFLAG_2XMODULATE)
552 GL_BlendFunc(GL_DST_COLOR,GL_SRC_COLOR);
554 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
559 c[0] = (float) ((color >> 24) & 0xFF) * (1.0f / 255.0f);
560 c[1] = (float) ((color >> 16) & 0xFF) * (1.0f / 255.0f);
561 c[2] = (float) ((color >> 8) & 0xFF) * (1.0f / 255.0f);
562 c[3] = (float) ( color & 0xFF) * (1.0f / 255.0f);
570 case DRAWQUEUE_STRING:
571 GL_Color(c[0], c[1], c[2], c[3]);
572 str = (char *)(dq + 1);
574 m.pointer_vertex = varray_vertex3f;
575 m.pointer_color = NULL;
576 m.pointer_texcoord[0] = varray_texcoord2f[0];
577 m.tex[0] = chartexnum;
579 at = varray_texcoord2f[0];
580 av = varray_vertex3f;
581 while ((num = *str++) && x < vid_conwidth.integer)
585 s = (num & 15)*0.0625f + (0.5f / 256.0f);
586 t = (num >> 4)*0.0625f + (0.5f / 256.0f);
587 u = 0.0625f - (1.0f / 256.0f);
588 v = 0.0625f - (1.0f / 256.0f);
589 at[ 0] = s ;at[ 1] = t ;
590 at[ 2] = s+u;at[ 3] = t ;
591 at[ 4] = s+u;at[ 5] = t+v;
592 at[ 6] = s ;at[ 7] = t+v;
593 av[ 0] = x ;av[ 1] = y ;av[ 2] = 10;
594 av[ 3] = x+w;av[ 4] = y ;av[ 5] = 10;
595 av[ 6] = x+w;av[ 7] = y+h;av[ 8] = 10;
596 av[ 9] = x ;av[10] = y+h;av[11] = 10;
600 if (batchcount >= 128)
602 GL_LockArrays(0, batchcount * 4);
603 R_Mesh_Draw(0, batchcount * 4, batchcount * 2, quadelements);
606 at = varray_texcoord2f[0];
607 av = varray_vertex3f;
614 GL_LockArrays(0, batchcount * 4);
615 R_Mesh_Draw(0, batchcount * 4, batchcount * 2, quadelements);
620 mesh = (void *)(dq + 1);
621 m.pointer_vertex = mesh->data_vertex3f;
622 m.pointer_color = mesh->data_color4f;
623 m.pointer_texcoord[0] = mesh->data_texcoord2f;
624 m.tex[0] = R_GetTexture(mesh->texture);
626 m.pointer_texcoord[0] = NULL;
628 GL_LockArrays(0, mesh->num_vertices);
629 R_Mesh_Draw(0, mesh->num_vertices, mesh->num_triangles, mesh->data_element3i);
632 case DRAWQUEUE_SETCLIP:
634 // We have to convert the con coords into real coords
635 int x , y, width, height;
636 x = dq->x * ((float)vid.width / vid_conwidth.integer);
637 // OGL uses top to bottom
638 y = dq->y * ((float) vid.height / vid_conheight.integer);
639 width = dq->scalex * ((float)vid.width / vid_conwidth.integer);
640 height = dq->scaley * ((float)vid.height / vid_conheight.integer);
642 GL_Scissor(x, y, width, height);
644 GL_ScissorTest(true);
647 case DRAWQUEUE_RESETCLIP:
648 GL_ScissorTest(false);
653 if (!vid_usinghwgamma)
655 // all the blends ignore depth
656 memset(&m, 0, sizeof(m));
657 m.pointer_vertex = blendvertex3f;
661 if (v_color_enable.integer)
663 c[0] = v_color_white_r.value;
664 c[1] = v_color_white_g.value;
665 c[2] = v_color_white_b.value;
668 c[0] = c[1] = c[2] = v_contrast.value;
669 if (c[0] >= 1.01f || c[1] >= 1.01f || c[2] >= 1.01f)
671 GL_BlendFunc(GL_DST_COLOR, GL_ONE);
672 while (c[0] >= 1.01f || c[1] >= 1.01f || c[2] >= 1.01f)
674 GL_Color(bound(0, c[0] - 1, 1), bound(0, c[1] - 1, 1), bound(0, c[2] - 1, 1), 1);
675 R_Mesh_Draw(0, 3, 1, polygonelements);
676 VectorScale(c, 0.5, c);
679 if (v_color_enable.integer)
681 c[0] = v_color_black_r.value;
682 c[1] = v_color_black_g.value;
683 c[2] = v_color_black_b.value;
686 c[0] = c[1] = c[2] = v_brightness.value;
687 if (c[0] >= 0.01f || c[1] >= 0.01f || c[2] >= 0.01f)
689 GL_BlendFunc(GL_ONE, GL_ONE);
690 GL_Color(c[0], c[1], c[2], 1);
691 R_Mesh_Draw(0, 3, 1, polygonelements);