st_cb_bitmap.c revision 93d101f0c3b2b7b6909d6f98a0d04b978b4ae29a
13ece9ace540447c4f0d340a6f9f27980b54f83fbBrian/************************************************************************** 23ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * 33ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. 43ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * All Rights Reserved. 53ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * 63ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Permission is hereby granted, free of charge, to any person obtaining a 73ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * copy of this software and associated documentation files (the 83ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * "Software"), to deal in the Software without restriction, including 93ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * without limitation the rights to use, copy, modify, merge, publish, 103ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * distribute, sub license, and/or sell copies of the Software, and to 113ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * permit persons to whom the Software is furnished to do so, subject to 123ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * the following conditions: 133ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * 143ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * The above copyright notice and this permission notice (including the 153ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * next paragraph) shall be included in all copies or substantial portions 163ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * of the Software. 173ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * 183ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 193ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 203ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 213ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR 223ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 233ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 243ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 253ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * 263ece9ace540447c4f0d340a6f9f27980b54f83fbBrian **************************************************************************/ 273ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 283ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* 293ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Authors: 303ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Brian Paul 313ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 323ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 333ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "main/imports.h" 343ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "main/image.h" 35f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul#include "main/bufferobj.h" 363ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "main/macros.h" 373ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "main/texformat.h" 383ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "shader/program.h" 393ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "shader/prog_parameter.h" 403ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "shader/prog_print.h" 413ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 423ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "st_context.h" 433ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "st_atom.h" 443ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "st_atom_constbuf.h" 453ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "st_program.h" 463ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "st_cb_bitmap.h" 4722a3d022542fed267d48b48a44e10226d55c8afdBrian Paul#include "st_cb_program.h" 483ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "st_mesa_to_tgsi.h" 493ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "st_texture.h" 503ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "pipe/p_context.h" 513ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "pipe/p_defines.h" 523ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "pipe/p_inlines.h" 534f25420bdd834e81a3e22733304efc5261c2998aBrian Paul#include "util/u_tile.h" 543ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "util/u_draw_quad.h" 553ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "util/u_simple_shaders.h" 563ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "shader/prog_instruction.h" 573ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "cso_cache/cso_context.h" 583ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 593ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 603ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 613ece9ace540447c4f0d340a6f9f27980b54f83fbBrian/** 626b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * glBitmaps are drawn as textured quads. The user's bitmap pattern 636b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * is stored in a texture image. An alpha8 texture format is used. 646b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * The fragment shader samples a bit (texel) from the texture, then 656b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * discards the fragment if the bit is off. 666b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * 676b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * Note that we actually store the inverse image of the bitmap to 686b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * simplify the fragment program. An "on" bit gets stored as texel=0x0 696b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * and an "off" bit is stored as texel=0xff. Then we kill the 706b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * fragment if the negated texel value is less than zero. 716b0be38a6cfecd2babc7175b0877bed522ca9f72Brian */ 726b0be38a6cfecd2babc7175b0877bed522ca9f72Brian 736b0be38a6cfecd2babc7175b0877bed522ca9f72Brian 746b0be38a6cfecd2babc7175b0877bed522ca9f72Brian/** 75c62b197b528293abb56b099503344e3cdd7d6c40Brian * The bitmap cache attempts to accumulate multiple glBitmap calls in a 76c62b197b528293abb56b099503344e3cdd7d6c40Brian * buffer which is then rendered en mass upon a flush, state change, etc. 77c62b197b528293abb56b099503344e3cdd7d6c40Brian * A wide, short buffer is used to target the common case of a series 78c62b197b528293abb56b099503344e3cdd7d6c40Brian * of glBitmap calls being used to draw text. 79c62b197b528293abb56b099503344e3cdd7d6c40Brian */ 807292db2138001b48bba006cc08e9ff7091d16559Brianstatic GLboolean UseBitmapCache = GL_TRUE; 81c62b197b528293abb56b099503344e3cdd7d6c40Brian 82c62b197b528293abb56b099503344e3cdd7d6c40Brian 83c62b197b528293abb56b099503344e3cdd7d6c40Brian#define BITMAP_CACHE_WIDTH 512 84c62b197b528293abb56b099503344e3cdd7d6c40Brian#define BITMAP_CACHE_HEIGHT 32 85c62b197b528293abb56b099503344e3cdd7d6c40Brian 86c62b197b528293abb56b099503344e3cdd7d6c40Brianstruct bitmap_cache 87c62b197b528293abb56b099503344e3cdd7d6c40Brian{ 88c62b197b528293abb56b099503344e3cdd7d6c40Brian /** Window pos to render the cached image */ 89c62b197b528293abb56b099503344e3cdd7d6c40Brian GLint xpos, ypos; 90737e34aee598f32f8ff078ba823ed149b282ebc8Brian /** Bounds of region used in window coords */ 91737e34aee598f32f8ff078ba823ed149b282ebc8Brian GLint xmin, ymin, xmax, ymax; 92d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul 93318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul GLfloat color[4]; 94318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul 95c62b197b528293abb56b099503344e3cdd7d6c40Brian struct pipe_texture *texture; 964617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer struct pipe_transfer *trans; 97d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul 98737e34aee598f32f8ff078ba823ed149b282ebc8Brian GLboolean empty; 99d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul 100737e34aee598f32f8ff078ba823ed149b282ebc8Brian /** An I8 texture image: */ 101d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul ubyte *buffer; 102c62b197b528293abb56b099503344e3cdd7d6c40Brian}; 103c62b197b528293abb56b099503344e3cdd7d6c40Brian 104c62b197b528293abb56b099503344e3cdd7d6c40Brian 105c62b197b528293abb56b099503344e3cdd7d6c40Brian 106c62b197b528293abb56b099503344e3cdd7d6c40Brian 107c62b197b528293abb56b099503344e3cdd7d6c40Brian/** 1083ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Make fragment program for glBitmap: 1093ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Sample the texture and kill the fragment if the bit is 0. 1103ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * This program will be combined with the user's fragment program. 1113ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 1123ece9ace540447c4f0d340a6f9f27980b54f83fbBrianstatic struct st_fragment_program * 11333f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paulmake_bitmap_fragment_program(GLcontext *ctx, GLuint samplerIndex) 1143ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 1153ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct st_fragment_program *stfp; 1163ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct gl_program *p; 1173ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLuint ic = 0; 1183ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1193ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p = ctx->Driver.NewProgram(ctx, GL_FRAGMENT_PROGRAM_ARB, 0); 1203ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (!p) 1213ece9ace540447c4f0d340a6f9f27980b54f83fbBrian return NULL; 1223ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1236b0be38a6cfecd2babc7175b0877bed522ca9f72Brian p->NumInstructions = 3; 1243ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1253ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions = _mesa_alloc_instructions(p->NumInstructions); 1263ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (!p->Instructions) { 1273ece9ace540447c4f0d340a6f9f27980b54f83fbBrian ctx->Driver.DeleteProgram(ctx, p); 1283ece9ace540447c4f0d340a6f9f27980b54f83fbBrian return NULL; 1293ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 1303ece9ace540447c4f0d340a6f9f27980b54f83fbBrian _mesa_init_instructions(p->Instructions, p->NumInstructions); 1313ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1323ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* TEX tmp0, fragment.texcoord[0], texture[0], 2D; */ 1333ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].Opcode = OPCODE_TEX; 1343ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].DstReg.File = PROGRAM_TEMPORARY; 1353ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].DstReg.Index = 0; 1363ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].SrcReg[0].File = PROGRAM_INPUT; 1373ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].SrcReg[0].Index = FRAG_ATTRIB_TEX0; 13833f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul p->Instructions[ic].TexSrcUnit = samplerIndex; 1393ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].TexSrcTarget = TEXTURE_2D_INDEX; 1403ece9ace540447c4f0d340a6f9f27980b54f83fbBrian ic++; 1413ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1426b0be38a6cfecd2babc7175b0877bed522ca9f72Brian /* KIL if -tmp0 < 0 # texel=0 -> keep / texel=0 -> discard */ 1433ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].Opcode = OPCODE_KIL; 1443ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].SrcReg[0].File = PROGRAM_TEMPORARY; 14593d101f0c3b2b7b6909d6f98a0d04b978b4ae29aKeith Whitwell 14693d101f0c3b2b7b6909d6f98a0d04b978b4ae29aKeith Whitwell if (ctx->st->bitmap.tex_format == PIPE_FORMAT_L8_UNORM) 14793d101f0c3b2b7b6909d6f98a0d04b978b4ae29aKeith Whitwell p->Instructions[ic].SrcReg[0].Swizzle = SWIZZLE_XXXX; 14893d101f0c3b2b7b6909d6f98a0d04b978b4ae29aKeith Whitwell 1493ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].SrcReg[0].Index = 0; 1506b0be38a6cfecd2babc7175b0877bed522ca9f72Brian p->Instructions[ic].SrcReg[0].NegateBase = NEGATE_XYZW; 1513ece9ace540447c4f0d340a6f9f27980b54f83fbBrian ic++; 1523ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1533ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* END; */ 1543ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic++].Opcode = OPCODE_END; 1553ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1563ece9ace540447c4f0d340a6f9f27980b54f83fbBrian assert(ic == p->NumInstructions); 1573ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1583ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->InputsRead = FRAG_BIT_TEX0; 1593ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->OutputsWritten = 0x0; 16033f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul p->SamplersUsed = (1 << samplerIndex); 1613ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1623ece9ace540447c4f0d340a6f9f27980b54f83fbBrian stfp = (struct st_fragment_program *) p; 1633ece9ace540447c4f0d340a6f9f27980b54f83fbBrian stfp->Base.UsesKill = GL_TRUE; 16493d101f0c3b2b7b6909d6f98a0d04b978b4ae29aKeith Whitwell 16593d101f0c3b2b7b6909d6f98a0d04b978b4ae29aKeith Whitwell /* No need to send this incomplete program down to hardware: 16693d101f0c3b2b7b6909d6f98a0d04b978b4ae29aKeith Whitwell * 16793d101f0c3b2b7b6909d6f98a0d04b978b4ae29aKeith Whitwell * st_translate_fragment_program(ctx->st, stfp, NULL); 16893d101f0c3b2b7b6909d6f98a0d04b978b4ae29aKeith Whitwell */ 1693ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1703ece9ace540447c4f0d340a6f9f27980b54f83fbBrian return stfp; 1713ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 1723ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1733ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 17433f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paulstatic int 17533f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paulfind_free_bit(uint bitfield) 17633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul{ 17733f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul int i; 17833f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul for (i = 0; i < 32; i++) { 17933f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul if ((bitfield & (1 << i)) == 0) { 18033f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul return i; 18133f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul } 18233f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul } 18333f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul return -1; 18433f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul} 18533f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul 18633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul 1873ece9ace540447c4f0d340a6f9f27980b54f83fbBrian/** 1883ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Combine basic bitmap fragment program with the user-defined program. 1893ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 1903ece9ace540447c4f0d340a6f9f27980b54f83fbBrianstatic struct st_fragment_program * 1913ece9ace540447c4f0d340a6f9f27980b54f83fbBriancombined_bitmap_fragment_program(GLcontext *ctx) 1923ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 1933ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct st_context *st = ctx->st; 19433f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul struct st_fragment_program *stfp = st->fp; 1953ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 19633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul if (!stfp->bitmap_program) { 19733f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul /* 19833f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul * Generate new program which is the user-defined program prefixed 19933f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul * with the bitmap sampler/kill instructions. 2003ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 20133f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul struct st_fragment_program *bitmap_prog; 20233f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul uint sampler; 2033ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 20433f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul sampler = find_free_bit(st->fp->Base.Base.SamplersUsed); 20533f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul bitmap_prog = make_bitmap_fragment_program(ctx, sampler); 20633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul 20733f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul stfp->bitmap_program = (struct st_fragment_program *) 20833f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul _mesa_combine_programs(ctx, 20933f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul &bitmap_prog->Base.Base, &stfp->Base.Base); 21033f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul stfp->bitmap_program->bitmap_sampler = sampler; 211ac09b0e0eb30f6691e35638f210c04ac0f867ea8Brian Paul 212ac09b0e0eb30f6691e35638f210c04ac0f867ea8Brian Paul /* done with this after combining */ 213ac09b0e0eb30f6691e35638f210c04ac0f867ea8Brian Paul st_reference_fragprog(st, &bitmap_prog, NULL); 214ac09b0e0eb30f6691e35638f210c04ac0f867ea8Brian Paul 2153ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#if 0 2163ece9ace540447c4f0d340a6f9f27980b54f83fbBrian { 21733f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul struct gl_program *p = &stfp->bitmap_program->Base.Base; 2183ece9ace540447c4f0d340a6f9f27980b54f83fbBrian printf("Combined bitmap program:\n"); 2193ece9ace540447c4f0d340a6f9f27980b54f83fbBrian _mesa_print_program(p); 2203ece9ace540447c4f0d340a6f9f27980b54f83fbBrian printf("InputsRead: 0x%x\n", p->InputsRead); 2213ece9ace540447c4f0d340a6f9f27980b54f83fbBrian printf("OutputsWritten: 0x%x\n", p->OutputsWritten); 2223ece9ace540447c4f0d340a6f9f27980b54f83fbBrian _mesa_print_parameter_list(p->Parameters); 2233ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2243ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#endif 2253ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2263ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* translate to TGSI tokens */ 22733f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul st_translate_fragment_program(st, stfp->bitmap_program, NULL); 2283ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2293ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 23033f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul return stfp->bitmap_program; 2313ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 2323ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2333ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2343ece9ace540447c4f0d340a6f9f27980b54f83fbBrian/** 2357146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * Copy user-provide bitmap bits into texture buffer, expanding 2367146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * bits into texels. 2377146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * "On" bits will set texels to 0xff. 2387146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * "Off" bits will not modify texels. 2397146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * Note that the image is actually going to be upside down in 2407146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * the texture. We deal with that with texcoords. 2413ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 2427146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paulstatic void 2437146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paulunpack_bitmap(struct st_context *st, 2447146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul GLint px, GLint py, GLsizei width, GLsizei height, 2457146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul const struct gl_pixelstore_attrib *unpack, 2467146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul const GLubyte *bitmap, 2477146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul ubyte *destBuffer, uint destStride) 2483ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 2497146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul GLint row, col; 250f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul 2517146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul#define SET_PIXEL(COL, ROW) \ 2527146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul destBuffer[(py + (ROW)) * destStride + px + (COL)] = 0x0; 2533ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2543ece9ace540447c4f0d340a6f9f27980b54f83fbBrian for (row = 0; row < height; row++) { 2553ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const GLubyte *src = (const GLubyte *) _mesa_image_address2d(unpack, 2563ece9ace540447c4f0d340a6f9f27980b54f83fbBrian bitmap, width, height, GL_COLOR_INDEX, GL_BITMAP, row, 0); 2573ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2583ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (unpack->LsbFirst) { 2593ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* Lsb first */ 2603ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLubyte mask = 1U << (unpack->SkipPixels & 0x7); 2613ece9ace540447c4f0d340a6f9f27980b54f83fbBrian for (col = 0; col < width; col++) { 2623ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2637146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul if (*src & mask) { 2647146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul SET_PIXEL(col, row); 2657146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul } 2663ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2673ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (mask == 128U) { 2683ece9ace540447c4f0d340a6f9f27980b54f83fbBrian src++; 2693ece9ace540447c4f0d340a6f9f27980b54f83fbBrian mask = 1U; 2703ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2713ece9ace540447c4f0d340a6f9f27980b54f83fbBrian else { 2723ece9ace540447c4f0d340a6f9f27980b54f83fbBrian mask = mask << 1; 2733ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2743ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2753ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2763ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* get ready for next row */ 2773ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (mask != 1) 2783ece9ace540447c4f0d340a6f9f27980b54f83fbBrian src++; 2793ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2803ece9ace540447c4f0d340a6f9f27980b54f83fbBrian else { 2813ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* Msb first */ 2823ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLubyte mask = 128U >> (unpack->SkipPixels & 0x7); 2833ece9ace540447c4f0d340a6f9f27980b54f83fbBrian for (col = 0; col < width; col++) { 2843ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2857146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul if (*src & mask) { 2867146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul SET_PIXEL(col, row); 2877146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul } 2883ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2893ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (mask == 1U) { 2903ece9ace540447c4f0d340a6f9f27980b54f83fbBrian src++; 2913ece9ace540447c4f0d340a6f9f27980b54f83fbBrian mask = 128U; 2923ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2933ece9ace540447c4f0d340a6f9f27980b54f83fbBrian else { 2943ece9ace540447c4f0d340a6f9f27980b54f83fbBrian mask = mask >> 1; 2953ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2963ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2973ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2983ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* get ready for next row */ 2993ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (mask != 128) 3003ece9ace540447c4f0d340a6f9f27980b54f83fbBrian src++; 3013ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 3023ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3033ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } /* row */ 3043ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3057146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul#undef SET_PIXEL 3067146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul} 3077146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 3087146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 3097146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul/** 3107146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * Create a texture which represents a bitmap image. 3117146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul */ 3127146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paulstatic struct pipe_texture * 3137146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paulmake_bitmap_texture(GLcontext *ctx, GLsizei width, GLsizei height, 3147146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul const struct gl_pixelstore_attrib *unpack, 3157146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul const GLubyte *bitmap) 3167146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul{ 3177146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul struct pipe_context *pipe = ctx->st->pipe; 3187146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul struct pipe_screen *screen = pipe->screen; 3194617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer struct pipe_transfer *transfer; 3207146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul ubyte *dest; 3217146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul struct pipe_texture *pt; 3227146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 3237146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul /* PBO source... */ 3247146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul bitmap = _mesa_map_bitmap_pbo(ctx, unpack, bitmap); 3257146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul if (!bitmap) { 3267146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul return NULL; 3277146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul } 3287146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 3297146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul /** 3307146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * Create texture to hold bitmap pattern. 3317146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul */ 3327146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul pt = st_texture_create(ctx->st, PIPE_TEXTURE_2D, ctx->st->bitmap.tex_format, 333a73ae3d5eb8419feab5aea26573aa41b72f941ebKeith Whitwell 0, width, height, 1, 0, 334a73ae3d5eb8419feab5aea26573aa41b72f941ebKeith Whitwell PIPE_TEXTURE_USAGE_SAMPLER); 3357146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul if (!pt) { 3367146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul _mesa_unmap_bitmap_pbo(ctx, unpack); 3377146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul return NULL; 3387146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul } 3397146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 3404617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer transfer = screen->get_tex_transfer(screen, pt, 0, 0, 0, PIPE_TRANSFER_WRITE, 3414617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer 0, 0, width, height); 3427146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 3434617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer dest = screen->transfer_map(screen, transfer); 3447146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 3454617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer /* Put image into texture transfer */ 3464617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer memset(dest, 0xff, height * transfer->stride); 3477146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul unpack_bitmap(ctx->st, 0, 0, width, height, unpack, bitmap, 3484617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer dest, transfer->stride); 3497146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 350f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul _mesa_unmap_bitmap_pbo(ctx, unpack); 351f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul 3524617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer /* Release transfer */ 3534617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer screen->transfer_unmap(screen, transfer); 3544617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer screen->tex_transfer_release(screen, &transfer); 3553ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3563ece9ace540447c4f0d340a6f9f27980b54f83fbBrian return pt; 3573ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 3583ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 359d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwellstatic GLuint 3603ece9ace540447c4f0d340a6f9f27980b54f83fbBriansetup_bitmap_vertex_data(struct st_context *st, 3613ece9ace540447c4f0d340a6f9f27980b54f83fbBrian int x, int y, int width, int height, 3623ece9ace540447c4f0d340a6f9f27980b54f83fbBrian float z, const float color[4]) 3633ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 3643ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_context *pipe = st->pipe; 3653ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const struct gl_framebuffer *fb = st->ctx->DrawBuffer; 36653174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat fb_width = (GLfloat)fb->Width; 36753174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat fb_height = (GLfloat)fb->Height; 36853174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat x0 = (GLfloat)x; 36953174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat x1 = (GLfloat)(x + width); 37053174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat y0 = (GLfloat)y; 37153174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat y1 = (GLfloat)(y + height); 37253174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat sLeft = (GLfloat)0.0, sRight = (GLfloat)1.0; 37353174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat tTop = (GLfloat)0.0, tBot = (GLfloat)1.0 - tTop; 37453174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat clip_x0 = (GLfloat)(x0 / fb_width * 2.0 - 1.0); 37553174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat clip_y0 = (GLfloat)(y0 / fb_height * 2.0 - 1.0); 37653174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat clip_x1 = (GLfloat)(x1 / fb_width * 2.0 - 1.0); 37753174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat clip_y1 = (GLfloat)(y1 / fb_height * 2.0 - 1.0); 378d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell const GLuint max_slots = 4096 / sizeof(st->bitmap.vertices); 3793ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLuint i; 380d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell 381d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell if (st->bitmap.vbuf_slot >= max_slots) { 382d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell pipe_buffer_reference(pipe->screen, &st->bitmap.vbuf, NULL); 383d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell st->bitmap.vbuf_slot = 0; 384d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell } 3853ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3863ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (!st->bitmap.vbuf) { 387d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell st->bitmap.vbuf = pipe_buffer_create(pipe->screen, 32, 388d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell PIPE_BUFFER_USAGE_VERTEX, 389d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell max_slots * sizeof(st->bitmap.vertices)); 3903ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 3913ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 392e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian /* Positions are in clip coords since we need to do clipping in case 393e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian * the bitmap quad goes beyond the window bounds. 394e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian */ 395e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[0][0][0] = clip_x0; 396e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[0][0][1] = clip_y0; 3973ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[0][2][0] = sLeft; 3983ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[0][2][1] = tTop; 3993ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 400e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[1][0][0] = clip_x1; 401e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[1][0][1] = clip_y0; 4023ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[1][2][0] = sRight; 4033ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[1][2][1] = tTop; 4043ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 405e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[2][0][0] = clip_x1; 406e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[2][0][1] = clip_y1; 4073ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[2][2][0] = sRight; 4083ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[2][2][1] = tBot; 4093ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 410e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[3][0][0] = clip_x0; 411e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[3][0][1] = clip_y1; 4123ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[3][2][0] = sLeft; 4133ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[3][2][1] = tBot; 4143ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4153ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* same for all verts: */ 4163ece9ace540447c4f0d340a6f9f27980b54f83fbBrian for (i = 0; i < 4; i++) { 4173ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][0][2] = z; 4183ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][0][3] = 1.0; 4193ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][1][0] = color[0]; 4203ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][1][1] = color[1]; 4213ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][1][2] = color[2]; 4223ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][1][3] = color[3]; 4233ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][2][2] = 0.0; /*R*/ 4243ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][2][3] = 1.0; /*Q*/ 4253ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 4263ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4273ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* put vertex data into vbuf */ 428693fac8ae2e5812265222b1335695bd33b90bd8aJosé Fonseca pipe_buffer_write(pipe->screen, 429693fac8ae2e5812265222b1335695bd33b90bd8aJosé Fonseca st->bitmap.vbuf, 430693fac8ae2e5812265222b1335695bd33b90bd8aJosé Fonseca st->bitmap.vbuf_slot * sizeof st->bitmap.vertices, 431693fac8ae2e5812265222b1335695bd33b90bd8aJosé Fonseca sizeof st->bitmap.vertices, 432693fac8ae2e5812265222b1335695bd33b90bd8aJosé Fonseca st->bitmap.vertices); 433d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell 434d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell return st->bitmap.vbuf_slot++ * sizeof st->bitmap.vertices; 4353ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 4363ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4373ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4383ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4393ece9ace540447c4f0d340a6f9f27980b54f83fbBrian/** 4403ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Render a glBitmap by drawing a textured quad 4413ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 4423ece9ace540447c4f0d340a6f9f27980b54f83fbBrianstatic void 4433ece9ace540447c4f0d340a6f9f27980b54f83fbBriandraw_bitmap_quad(GLcontext *ctx, GLint x, GLint y, GLfloat z, 4443ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLsizei width, GLsizei height, 445318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul struct pipe_texture *pt, 446318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul const GLfloat *color) 4473ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 4483ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct st_context *st = ctx->st; 4493ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_context *pipe = ctx->st->pipe; 4503ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct cso_context *cso = ctx->st->cso_context; 451c62b197b528293abb56b099503344e3cdd7d6c40Brian struct st_fragment_program *stfp; 4523ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLuint maxSize; 453d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell GLuint offset; 4543ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 455c62b197b528293abb56b099503344e3cdd7d6c40Brian stfp = combined_bitmap_fragment_program(ctx); 456c62b197b528293abb56b099503344e3cdd7d6c40Brian 457277089b81ae498f598efdc74fafda9873864ee54Brian Paul /* As an optimization, Mesa's fragment programs will sometimes get the 458277089b81ae498f598efdc74fafda9873864ee54Brian Paul * primary color from a statevar/constant rather than a varying variable. 459277089b81ae498f598efdc74fafda9873864ee54Brian Paul * when that's the case, we need to ensure that we use the 'color' 460277089b81ae498f598efdc74fafda9873864ee54Brian Paul * parameter and not the current attribute color (which may have changed 461277089b81ae498f598efdc74fafda9873864ee54Brian Paul * through glRasterPos and state validation. 462277089b81ae498f598efdc74fafda9873864ee54Brian Paul * So, we force the proper color here. Not elegant, but it works. 463277089b81ae498f598efdc74fafda9873864ee54Brian Paul */ 464277089b81ae498f598efdc74fafda9873864ee54Brian Paul { 465277089b81ae498f598efdc74fafda9873864ee54Brian Paul GLfloat colorSave[4]; 466277089b81ae498f598efdc74fafda9873864ee54Brian Paul COPY_4V(colorSave, ctx->Current.Attrib[VERT_ATTRIB_COLOR0]); 467277089b81ae498f598efdc74fafda9873864ee54Brian Paul COPY_4V(ctx->Current.Attrib[VERT_ATTRIB_COLOR0], color); 468277089b81ae498f598efdc74fafda9873864ee54Brian Paul st_upload_constants(st, stfp->Base.Base.Parameters, PIPE_SHADER_FRAGMENT); 469277089b81ae498f598efdc74fafda9873864ee54Brian Paul COPY_4V(ctx->Current.Attrib[VERT_ATTRIB_COLOR0], colorSave); 470277089b81ae498f598efdc74fafda9873864ee54Brian Paul } 471277089b81ae498f598efdc74fafda9873864ee54Brian Paul 472277089b81ae498f598efdc74fafda9873864ee54Brian Paul 4733ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* limit checks */ 474c62b197b528293abb56b099503344e3cdd7d6c40Brian /* XXX if the bitmap is larger than the max texture size, break 4753ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * it up into chunks. 4763ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 4773ece9ace540447c4f0d340a6f9f27980b54f83fbBrian maxSize = 1 << (pipe->screen->get_param(pipe->screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS) - 1); 47853174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca assert(width <= (GLsizei)maxSize); 47953174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca assert(height <= (GLsizei)maxSize); 4803ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4813ece9ace540447c4f0d340a6f9f27980b54f83fbBrian cso_save_rasterizer(cso); 482d246274b9c48c01b61490f0a76c22aebb8e64e1eBrian Paul cso_save_samplers(cso); 483ddc0f91bfc571dcd05c13f094c179b4250e53bccBrian cso_save_sampler_textures(cso); 484e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian cso_save_viewport(cso); 48565efe807b9067aa07b382e3c4d9cea6222c5fc6bMichel Dänzer cso_save_fragment_shader(cso); 48665efe807b9067aa07b382e3c4d9cea6222c5fc6bMichel Dänzer cso_save_vertex_shader(cso); 4873ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4883ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* rasterizer state: just scissor */ 489e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.rasterizer.scissor = ctx->Scissor.Enabled; 490e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian cso_set_rasterizer(cso, &st->bitmap.rasterizer); 4913ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4923ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* fragment shader state: TEX lookup program */ 49301dfa6cde157321f565bab949f23f367ed20fa0eKeith Whitwell cso_set_fragment_shader_handle(cso, stfp->driver_shader); 4943ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4953ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* vertex shader state: position + texcoord pass-through */ 49601dfa6cde157321f565bab949f23f367ed20fa0eKeith Whitwell cso_set_vertex_shader_handle(cso, st->bitmap.vs); 4973ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 49833f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul /* user samplers, plus our bitmap sampler */ 49933f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul { 50033f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul struct pipe_sampler_state *samplers[PIPE_MAX_SAMPLERS]; 50133f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul uint num = MAX2(stfp->bitmap_sampler + 1, st->state.num_samplers); 50233f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul uint i; 50333f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul for (i = 0; i < st->state.num_samplers; i++) { 50433f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul samplers[i] = &st->state.samplers[i]; 50533f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul } 50633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul samplers[stfp->bitmap_sampler] = &st->bitmap.sampler; 507277089b81ae498f598efdc74fafda9873864ee54Brian Paul cso_set_samplers(cso, num, (const struct pipe_sampler_state **) samplers); 508277089b81ae498f598efdc74fafda9873864ee54Brian Paul } 50933f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul 51033f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul /* user textures, plus the bitmap texture */ 51133f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul { 51233f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul struct pipe_texture *textures[PIPE_MAX_SAMPLERS]; 51333f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul uint num = MAX2(stfp->bitmap_sampler + 1, st->state.num_textures); 51433f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul memcpy(textures, st->state.sampler_texture, sizeof(textures)); 51533f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul textures[stfp->bitmap_sampler] = pt; 51633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul cso_set_sampler_textures(cso, num, textures); 51733f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul } 518e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian 519e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian /* viewport state: viewport matching window dims */ 5203ece9ace540447c4f0d340a6f9f27980b54f83fbBrian { 521e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const struct gl_framebuffer *fb = st->ctx->DrawBuffer; 522e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const GLboolean invert = (st_fb_orientation(fb) == Y_0_TOP); 52353174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat width = (GLfloat)fb->Width; 52453174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat height = (GLfloat)fb->Height; 525e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian struct pipe_viewport_state vp; 5265c1a78b7a85d23ad1358b34d03a0002a19483655José Fonseca vp.scale[0] = 0.5f * width; 5275c1a78b7a85d23ad1358b34d03a0002a19483655José Fonseca vp.scale[1] = height * (invert ? -0.5f : 0.5f); 5285c1a78b7a85d23ad1358b34d03a0002a19483655José Fonseca vp.scale[2] = 1.0f; 5295c1a78b7a85d23ad1358b34d03a0002a19483655José Fonseca vp.scale[3] = 1.0f; 5305c1a78b7a85d23ad1358b34d03a0002a19483655José Fonseca vp.translate[0] = 0.5f * width; 5315c1a78b7a85d23ad1358b34d03a0002a19483655José Fonseca vp.translate[1] = 0.5f * height; 5325c1a78b7a85d23ad1358b34d03a0002a19483655José Fonseca vp.translate[2] = 0.0f; 5335c1a78b7a85d23ad1358b34d03a0002a19483655José Fonseca vp.translate[3] = 0.0f; 534e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian cso_set_viewport(cso, &vp); 5353ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 5363ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 5373ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* draw textured quad */ 538d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell offset = setup_bitmap_vertex_data(st, x, y, width, height, 539d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell ctx->Current.RasterPos[2], 540d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell color); 5413ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 542d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell util_draw_vertex_buffer(pipe, st->bitmap.vbuf, offset, 5433ece9ace540447c4f0d340a6f9f27980b54f83fbBrian PIPE_PRIM_TRIANGLE_FAN, 5443ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4, /* verts */ 5453ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3); /* attribs/vert */ 5463ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 5473ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 5483ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* restore state */ 5493ece9ace540447c4f0d340a6f9f27980b54f83fbBrian cso_restore_rasterizer(cso); 5503ece9ace540447c4f0d340a6f9f27980b54f83fbBrian cso_restore_samplers(cso); 551ddc0f91bfc571dcd05c13f094c179b4250e53bccBrian cso_restore_sampler_textures(cso); 552e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian cso_restore_viewport(cso); 553fd4acd6fdaaad4871327d081f5501680ed9da2edMichel Dänzer cso_restore_fragment_shader(cso); 554fd4acd6fdaaad4871327d081f5501680ed9da2edMichel Dänzer cso_restore_vertex_shader(cso); 5553ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 5563ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 5573ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 558737e34aee598f32f8ff078ba823ed149b282ebc8Brianstatic void 559737e34aee598f32f8ff078ba823ed149b282ebc8Brianreset_cache(struct st_context *st) 560737e34aee598f32f8ff078ba823ed149b282ebc8Brian{ 561d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul struct pipe_context *pipe = st->pipe; 562d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul struct pipe_screen *screen = pipe->screen; 563d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul struct bitmap_cache *cache = st->bitmap.cache; 564737e34aee598f32f8ff078ba823ed149b282ebc8Brian 565d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul //memset(cache->buffer, 0xff, sizeof(cache->buffer)); 566d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->empty = GL_TRUE; 567737e34aee598f32f8ff078ba823ed149b282ebc8Brian 568d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->xmin = 1000000; 569d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->xmax = -1000000; 570d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->ymin = 1000000; 571d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->ymax = -1000000; 5723ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 5734617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer if (cache->trans) 5744617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer screen->tex_transfer_release(screen, &cache->trans); 5752212c214f1890091c102d4cb3c69ec2df2132322Brian Paul 576d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul assert(!cache->texture); 577c62b197b528293abb56b099503344e3cdd7d6c40Brian 578d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul /* allocate a new texture */ 579d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->texture = st_texture_create(st, PIPE_TEXTURE_2D, 580d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul st->bitmap.tex_format, 0, 581d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul BITMAP_CACHE_WIDTH, BITMAP_CACHE_HEIGHT, 582a73ae3d5eb8419feab5aea26573aa41b72f941ebKeith Whitwell 1, 0, 583a73ae3d5eb8419feab5aea26573aa41b72f941ebKeith Whitwell PIPE_TEXTURE_USAGE_SAMPLER); 584c62b197b528293abb56b099503344e3cdd7d6c40Brian 5854617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer /* Map the texture transfer. 586d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul * Subsequent glBitmap calls will write into the texture image. 587d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul */ 5884617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer cache->trans = screen->get_tex_transfer(screen, cache->texture, 0, 0, 0, 5894617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer PIPE_TRANSFER_WRITE, 0, 0, 5904617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer BITMAP_CACHE_WIDTH, 5914617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer BITMAP_CACHE_HEIGHT); 5924617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer cache->buffer = screen->transfer_map(screen, cache->trans); 593d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul 594d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul /* init image to all 0xff */ 5954617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer memset(cache->buffer, 0xff, cache->trans->stride * BITMAP_CACHE_HEIGHT); 596c62b197b528293abb56b099503344e3cdd7d6c40Brian} 597c62b197b528293abb56b099503344e3cdd7d6c40Brian 598c62b197b528293abb56b099503344e3cdd7d6c40Brian 599c62b197b528293abb56b099503344e3cdd7d6c40Brian/** 600c62b197b528293abb56b099503344e3cdd7d6c40Brian * If there's anything in the bitmap cache, draw/flush it now. 601c62b197b528293abb56b099503344e3cdd7d6c40Brian */ 602c62b197b528293abb56b099503344e3cdd7d6c40Brianvoid 603c62b197b528293abb56b099503344e3cdd7d6c40Brianst_flush_bitmap_cache(struct st_context *st) 604c62b197b528293abb56b099503344e3cdd7d6c40Brian{ 605c62b197b528293abb56b099503344e3cdd7d6c40Brian if (!st->bitmap.cache->empty) { 60644a7bd0019b9af9ff01336df0aa6eb206f5dc2e9Michel Dänzer struct bitmap_cache *cache = st->bitmap.cache; 60744a7bd0019b9af9ff01336df0aa6eb206f5dc2e9Michel Dänzer 608985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul if (st->ctx->DrawBuffer) { 609985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul struct pipe_context *pipe = st->pipe; 610c9ed86a96483063f3d6789ed16645a3dca77d726Keith Whitwell struct pipe_screen *screen = pipe->screen; 611985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul 612985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul assert(cache->xmin <= cache->xmax); 613d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell 614d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell/* printf("flush size %d x %d at %d, %d\n", 615985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul cache->xmax - cache->xmin, 616985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul cache->ymax - cache->ymin, 617985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul cache->xpos, cache->ypos); 618d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell*/ 619985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul 6204617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer /* The texture transfer has been mapped until now. 6214617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer * So unmap and release the texture transfer before drawing. 6226fb40092261b891b78e504f453fddf041f9efac6Brian Paul */ 6234617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer screen->transfer_unmap(screen, cache->trans); 6242212c214f1890091c102d4cb3c69ec2df2132322Brian Paul cache->buffer = NULL; 6252212c214f1890091c102d4cb3c69ec2df2132322Brian Paul 6264617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer screen->tex_transfer_release(screen, &cache->trans); 6276fb40092261b891b78e504f453fddf041f9efac6Brian Paul 628985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul draw_bitmap_quad(st->ctx, 629985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul cache->xpos, 630985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul cache->ypos, 631985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul st->ctx->Current.RasterPos[2], 632985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul BITMAP_CACHE_WIDTH, BITMAP_CACHE_HEIGHT, 633318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul cache->texture, 634318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul cache->color); 635985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul } 63644a7bd0019b9af9ff01336df0aa6eb206f5dc2e9Michel Dänzer 63744a7bd0019b9af9ff01336df0aa6eb206f5dc2e9Michel Dänzer /* release/free the texture */ 63844a7bd0019b9af9ff01336df0aa6eb206f5dc2e9Michel Dänzer pipe_texture_reference(&cache->texture, NULL); 63944a7bd0019b9af9ff01336df0aa6eb206f5dc2e9Michel Dänzer 640737e34aee598f32f8ff078ba823ed149b282ebc8Brian reset_cache(st); 641c62b197b528293abb56b099503344e3cdd7d6c40Brian } 642c62b197b528293abb56b099503344e3cdd7d6c40Brian} 643c62b197b528293abb56b099503344e3cdd7d6c40Brian 644d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell/* Flush bitmap cache and release vertex buffer. 645d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell */ 646d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwellvoid 647d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwellst_flush_bitmap( struct st_context *st ) 648d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell{ 649d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell st_flush_bitmap_cache(st); 650d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell 651d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell /* Release vertex buffer to avoid synchronous rendering if we were 652d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell * to map it in the next frame. 653d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell */ 654d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell pipe_buffer_reference(st->pipe->screen, &st->bitmap.vbuf, NULL); 655d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell st->bitmap.vbuf_slot = 0; 656d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell} 657d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell 658c62b197b528293abb56b099503344e3cdd7d6c40Brian 659c62b197b528293abb56b099503344e3cdd7d6c40Brian/** 660c62b197b528293abb56b099503344e3cdd7d6c40Brian * Try to accumulate this glBitmap call in the bitmap cache. 661c62b197b528293abb56b099503344e3cdd7d6c40Brian * \return GL_TRUE for success, GL_FALSE if bitmap is too large, etc. 662c62b197b528293abb56b099503344e3cdd7d6c40Brian */ 663c62b197b528293abb56b099503344e3cdd7d6c40Brianstatic GLboolean 664c62b197b528293abb56b099503344e3cdd7d6c40Brianaccum_bitmap(struct st_context *st, 665c62b197b528293abb56b099503344e3cdd7d6c40Brian GLint x, GLint y, GLsizei width, GLsizei height, 666c62b197b528293abb56b099503344e3cdd7d6c40Brian const struct gl_pixelstore_attrib *unpack, 667c62b197b528293abb56b099503344e3cdd7d6c40Brian const GLubyte *bitmap ) 668c62b197b528293abb56b099503344e3cdd7d6c40Brian{ 669737e34aee598f32f8ff078ba823ed149b282ebc8Brian struct bitmap_cache *cache = st->bitmap.cache; 670c62b197b528293abb56b099503344e3cdd7d6c40Brian int px = -999, py; 671c62b197b528293abb56b099503344e3cdd7d6c40Brian 672c62b197b528293abb56b099503344e3cdd7d6c40Brian if (width > BITMAP_CACHE_WIDTH || 673c62b197b528293abb56b099503344e3cdd7d6c40Brian height > BITMAP_CACHE_HEIGHT) 674c62b197b528293abb56b099503344e3cdd7d6c40Brian return GL_FALSE; /* too big to cache */ 675c62b197b528293abb56b099503344e3cdd7d6c40Brian 676737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (!cache->empty) { 677737e34aee598f32f8ff078ba823ed149b282ebc8Brian px = x - cache->xpos; /* pos in buffer */ 678737e34aee598f32f8ff078ba823ed149b282ebc8Brian py = y - cache->ypos; 679c62b197b528293abb56b099503344e3cdd7d6c40Brian if (px < 0 || px + width > BITMAP_CACHE_WIDTH || 680318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul py < 0 || py + height > BITMAP_CACHE_HEIGHT || 681318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul !TEST_EQ_4V(st->ctx->Current.RasterColor, cache->color)) { 682318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul /* This bitmap would extend beyond cache bounds, or the bitmap 683318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul * color is changing 684c62b197b528293abb56b099503344e3cdd7d6c40Brian * so flush and continue. 685c62b197b528293abb56b099503344e3cdd7d6c40Brian */ 686c62b197b528293abb56b099503344e3cdd7d6c40Brian st_flush_bitmap_cache(st); 687c62b197b528293abb56b099503344e3cdd7d6c40Brian } 688c62b197b528293abb56b099503344e3cdd7d6c40Brian } 689c62b197b528293abb56b099503344e3cdd7d6c40Brian 690737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (cache->empty) { 691c62b197b528293abb56b099503344e3cdd7d6c40Brian /* Initialize. Center bitmap vertically in the buffer. */ 692c62b197b528293abb56b099503344e3cdd7d6c40Brian px = 0; 693c62b197b528293abb56b099503344e3cdd7d6c40Brian py = (BITMAP_CACHE_HEIGHT - height) / 2; 694737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->xpos = x; 695737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->ypos = y - py; 696737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->empty = GL_FALSE; 697318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul COPY_4FV(cache->color, st->ctx->Current.RasterColor); 698c62b197b528293abb56b099503344e3cdd7d6c40Brian } 699c62b197b528293abb56b099503344e3cdd7d6c40Brian 700c62b197b528293abb56b099503344e3cdd7d6c40Brian assert(px != -999); 701c62b197b528293abb56b099503344e3cdd7d6c40Brian 702737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (x < cache->xmin) 703737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->xmin = x; 704737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (y < cache->ymin) 705737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->ymin = y; 706737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (x + width > cache->xmax) 707737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->xmax = x + width; 708737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (y + height > cache->ymax) 709737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->ymax = y + height; 710737e34aee598f32f8ff078ba823ed149b282ebc8Brian 7117146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul unpack_bitmap(st, px, py, width, height, unpack, bitmap, 7127146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul cache->buffer, BITMAP_CACHE_WIDTH); 713c62b197b528293abb56b099503344e3cdd7d6c40Brian 714c62b197b528293abb56b099503344e3cdd7d6c40Brian return GL_TRUE; /* accumulated */ 715c62b197b528293abb56b099503344e3cdd7d6c40Brian} 716c62b197b528293abb56b099503344e3cdd7d6c40Brian 717c62b197b528293abb56b099503344e3cdd7d6c40Brian 718c62b197b528293abb56b099503344e3cdd7d6c40Brian 719c62b197b528293abb56b099503344e3cdd7d6c40Brian/** 720c62b197b528293abb56b099503344e3cdd7d6c40Brian * Called via ctx->Driver.Bitmap() 721c62b197b528293abb56b099503344e3cdd7d6c40Brian */ 722c62b197b528293abb56b099503344e3cdd7d6c40Brianstatic void 7233ece9ace540447c4f0d340a6f9f27980b54f83fbBrianst_Bitmap(GLcontext *ctx, GLint x, GLint y, GLsizei width, GLsizei height, 7243ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const struct gl_pixelstore_attrib *unpack, const GLubyte *bitmap ) 7253ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 7263ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct st_context *st = ctx->st; 7273ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_texture *pt; 7283ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 72929d9f6b0d263b6ea2f89ea955d53d2671d9a6e43Brian Paul if (width == 0 || height == 0) 73029d9f6b0d263b6ea2f89ea955d53d2671d9a6e43Brian Paul return; 73129d9f6b0d263b6ea2f89ea955d53d2671d9a6e43Brian Paul 7321ecb2e4a7a5881d5a98679b421d78fd11c729ebcBrian Paul st_validate_state(st); 7331ecb2e4a7a5881d5a98679b421d78fd11c729ebcBrian Paul 7343ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (!st->bitmap.vs) { 7353ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* create pass-through vertex shader now */ 7363ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const uint semantic_names[] = { TGSI_SEMANTIC_POSITION, 7373ece9ace540447c4f0d340a6f9f27980b54f83fbBrian TGSI_SEMANTIC_COLOR, 7383ece9ace540447c4f0d340a6f9f27980b54f83fbBrian TGSI_SEMANTIC_GENERIC }; 7393ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const uint semantic_indexes[] = { 0, 0, 0 }; 7403ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vs = util_make_vertex_passthrough_shader(st->pipe, 3, 7413ece9ace540447c4f0d340a6f9f27980b54f83fbBrian semantic_names, 7426f8286163c79a8187c2912a9b673a6f11f4f60c6Brian semantic_indexes, 7436f8286163c79a8187c2912a9b673a6f11f4f60c6Brian &st->bitmap.vert_shader); 7443ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 7453ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 746c62b197b528293abb56b099503344e3cdd7d6c40Brian if (UseBitmapCache && accum_bitmap(st, x, y, width, height, unpack, bitmap)) 747c62b197b528293abb56b099503344e3cdd7d6c40Brian return; 7483ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 7493ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pt = make_bitmap_texture(ctx, width, height, unpack, bitmap); 7503ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (pt) { 7516f8286163c79a8187c2912a9b673a6f11f4f60c6Brian assert(pt->target == PIPE_TEXTURE_2D); 7523ece9ace540447c4f0d340a6f9f27980b54f83fbBrian draw_bitmap_quad(ctx, x, y, ctx->Current.RasterPos[2], 753318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul width, height, pt, 754318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul st->ctx->Current.RasterColor); 755d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul /* release/free the texture */ 7563ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pipe_texture_reference(&pt, NULL); 7573ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 7583ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 7593ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 7603ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 761c62b197b528293abb56b099503344e3cdd7d6c40Brian/** Per-context init */ 762c62b197b528293abb56b099503344e3cdd7d6c40Brianvoid 763c62b197b528293abb56b099503344e3cdd7d6c40Brianst_init_bitmap_functions(struct dd_function_table *functions) 7643ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 7653ece9ace540447c4f0d340a6f9f27980b54f83fbBrian functions->Bitmap = st_Bitmap; 7663ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 7673ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 7683ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 769c62b197b528293abb56b099503344e3cdd7d6c40Brian/** Per-context init */ 770c62b197b528293abb56b099503344e3cdd7d6c40Brianvoid 771c62b197b528293abb56b099503344e3cdd7d6c40Brianst_init_bitmap(struct st_context *st) 772c62b197b528293abb56b099503344e3cdd7d6c40Brian{ 773e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian struct pipe_sampler_state *sampler = &st->bitmap.sampler; 774eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul struct pipe_context *pipe = st->pipe; 775eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul struct pipe_screen *screen = pipe->screen; 776e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian 777e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian /* init sampler state once */ 778e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian memset(sampler, 0, sizeof(*sampler)); 779e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->wrap_s = PIPE_TEX_WRAP_CLAMP; 780e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->wrap_t = PIPE_TEX_WRAP_CLAMP; 781e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->wrap_r = PIPE_TEX_WRAP_CLAMP; 782e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->min_img_filter = PIPE_TEX_FILTER_NEAREST; 783e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->min_mip_filter = PIPE_TEX_MIPFILTER_NONE; 784e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->mag_img_filter = PIPE_TEX_FILTER_NEAREST; 785e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->normalized_coords = 1; 786e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian 7876a382250a10e7022e93b6be6fe4657445d85a568Brian /* init baseline rasterizer state once */ 788e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian memset(&st->bitmap.rasterizer, 0, sizeof(st->bitmap.rasterizer)); 789124e1345c9ba4abe17bb04b8781ec0fe803eda7bBrian st->bitmap.rasterizer.gl_rasterization_rules = 1; 7906a382250a10e7022e93b6be6fe4657445d85a568Brian st->bitmap.rasterizer.bypass_vs = 1; 791e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian 792eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul /* find a usable texture format */ 7938aafc03b260ab8923f1b373f7effa75bcdb40a72José Fonseca if (screen->is_format_supported(screen, PIPE_FORMAT_I8_UNORM, PIPE_TEXTURE_2D, 7948aafc03b260ab8923f1b373f7effa75bcdb40a72José Fonseca PIPE_TEXTURE_USAGE_SAMPLER, 0)) { 79554f94a790e4488445347abcff9a636a9c440d7f9Brian Paul st->bitmap.tex_format = PIPE_FORMAT_I8_UNORM; 796eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul } 79793d101f0c3b2b7b6909d6f98a0d04b978b4ae29aKeith Whitwell else if (screen->is_format_supported(screen, PIPE_FORMAT_L8_UNORM, PIPE_TEXTURE_2D, 79893d101f0c3b2b7b6909d6f98a0d04b978b4ae29aKeith Whitwell PIPE_TEXTURE_USAGE_SAMPLER, 0)) { 79993d101f0c3b2b7b6909d6f98a0d04b978b4ae29aKeith Whitwell st->bitmap.tex_format = PIPE_FORMAT_L8_UNORM; 80093d101f0c3b2b7b6909d6f98a0d04b978b4ae29aKeith Whitwell } 801eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul else { 802eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul /* XXX support more formats */ 803eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul assert(0); 804eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul } 805eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul 806d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul /* alloc bitmap cache object */ 807f1a59a6dd7b7b0523db191d82b3af1a841c6475dBrian Paul st->bitmap.cache = ST_CALLOC_STRUCT(bitmap_cache); 808d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul 809d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul reset_cache(st); 810c62b197b528293abb56b099503344e3cdd7d6c40Brian} 811c62b197b528293abb56b099503344e3cdd7d6c40Brian 812c62b197b528293abb56b099503344e3cdd7d6c40Brian 813c62b197b528293abb56b099503344e3cdd7d6c40Brian/** Per-context tear-down */ 8143ece9ace540447c4f0d340a6f9f27980b54f83fbBrianvoid 8153ece9ace540447c4f0d340a6f9f27980b54f83fbBrianst_destroy_bitmap(struct st_context *st) 8163ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 8173ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_context *pipe = st->pipe; 818b4219e35e2de783ca03e53c311a8a56f8b633aa1Brian Paul struct pipe_screen *screen = pipe->screen; 819b4219e35e2de783ca03e53c311a8a56f8b633aa1Brian Paul struct bitmap_cache *cache = st->bitmap.cache; 820b4219e35e2de783ca03e53c311a8a56f8b633aa1Brian Paul 8214617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer screen->transfer_unmap(screen, cache->trans); 8224617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer screen->tex_transfer_release(screen, &cache->trans); 8233ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 8243ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (st->bitmap.vs) { 825a770d40c3d4977e2c134661b5d8facaea446b6eaBrian Paul cso_delete_vertex_shader(st->cso_context, st->bitmap.vs); 8263ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vs = NULL; 8273ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 82885b0c171c04c00b4ca9e11a1c79872f5e0cbaf9cJosé Fonseca util_free_shader(&st->bitmap.vert_shader); 829c62b197b528293abb56b099503344e3cdd7d6c40Brian 8303ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (st->bitmap.vbuf) { 8311c6fe6564be28ac3e72fa8e6b1616ae0e22a7bc7José Fonseca pipe_buffer_reference(pipe->screen, &st->bitmap.vbuf, NULL); 8323ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vbuf = NULL; 8333ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 8343ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 835c62b197b528293abb56b099503344e3cdd7d6c40Brian if (st->bitmap.cache) { 836c62b197b528293abb56b099503344e3cdd7d6c40Brian pipe_texture_release(&st->bitmap.cache->texture); 8371a2f4dd8768703fbc1b2a0d5be342345644805b4Brian Paul _mesa_free(st->bitmap.cache); 838c62b197b528293abb56b099503344e3cdd7d6c40Brian st->bitmap.cache = NULL; 839c62b197b528293abb56b099503344e3cdd7d6c40Brian } 840c62b197b528293abb56b099503344e3cdd7d6c40Brian} 841