st_cb_bitmap.c revision 218590f70723ce0683f70a0c7aab229f9bbd89a6
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 "shader/program.h" 383ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "shader/prog_print.h" 393ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 403ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "st_context.h" 413ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "st_atom.h" 423ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "st_atom_constbuf.h" 433ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "st_program.h" 443ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "st_cb_bitmap.h" 453ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "st_texture.h" 46e50dd26ca6d0eb0d0f97c2780020ea16e3d4a687Thomas Hellstrom#include "st_inlines.h" 47e50dd26ca6d0eb0d0f97c2780020ea16e3d4a687Thomas Hellstrom 483ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "pipe/p_context.h" 493ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "pipe/p_defines.h" 5028486880ca3ec39419ccee0cb1a3bedc9ef7117cJosé Fonseca#include "util/u_inlines.h" 513ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "util/u_draw_quad.h" 523ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "util/u_simple_shaders.h" 533ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "shader/prog_instruction.h" 543ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "cso_cache/cso_context.h" 553ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 563ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 573ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 583ece9ace540447c4f0d340a6f9f27980b54f83fbBrian/** 596b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * glBitmaps are drawn as textured quads. The user's bitmap pattern 606b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * is stored in a texture image. An alpha8 texture format is used. 616b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * The fragment shader samples a bit (texel) from the texture, then 626b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * discards the fragment if the bit is off. 636b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * 646b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * Note that we actually store the inverse image of the bitmap to 656b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * simplify the fragment program. An "on" bit gets stored as texel=0x0 666b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * and an "off" bit is stored as texel=0xff. Then we kill the 676b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * fragment if the negated texel value is less than zero. 686b0be38a6cfecd2babc7175b0877bed522ca9f72Brian */ 696b0be38a6cfecd2babc7175b0877bed522ca9f72Brian 706b0be38a6cfecd2babc7175b0877bed522ca9f72Brian 716b0be38a6cfecd2babc7175b0877bed522ca9f72Brian/** 72c62b197b528293abb56b099503344e3cdd7d6c40Brian * The bitmap cache attempts to accumulate multiple glBitmap calls in a 73c62b197b528293abb56b099503344e3cdd7d6c40Brian * buffer which is then rendered en mass upon a flush, state change, etc. 74c62b197b528293abb56b099503344e3cdd7d6c40Brian * A wide, short buffer is used to target the common case of a series 75c62b197b528293abb56b099503344e3cdd7d6c40Brian * of glBitmap calls being used to draw text. 76c62b197b528293abb56b099503344e3cdd7d6c40Brian */ 777292db2138001b48bba006cc08e9ff7091d16559Brianstatic GLboolean UseBitmapCache = GL_TRUE; 78c62b197b528293abb56b099503344e3cdd7d6c40Brian 79c62b197b528293abb56b099503344e3cdd7d6c40Brian 80c62b197b528293abb56b099503344e3cdd7d6c40Brian#define BITMAP_CACHE_WIDTH 512 81c62b197b528293abb56b099503344e3cdd7d6c40Brian#define BITMAP_CACHE_HEIGHT 32 82c62b197b528293abb56b099503344e3cdd7d6c40Brian 83c62b197b528293abb56b099503344e3cdd7d6c40Brianstruct bitmap_cache 84c62b197b528293abb56b099503344e3cdd7d6c40Brian{ 85c62b197b528293abb56b099503344e3cdd7d6c40Brian /** Window pos to render the cached image */ 86c62b197b528293abb56b099503344e3cdd7d6c40Brian GLint xpos, ypos; 87737e34aee598f32f8ff078ba823ed149b282ebc8Brian /** Bounds of region used in window coords */ 88737e34aee598f32f8ff078ba823ed149b282ebc8Brian GLint xmin, ymin, xmax, ymax; 89d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul 90318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul GLfloat color[4]; 91318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul 924eb72568541803fe45d04d9e230212f4f0928ec9Brian Paul /** Bitmap's Z position */ 934eb72568541803fe45d04d9e230212f4f0928ec9Brian Paul GLfloat zpos; 944eb72568541803fe45d04d9e230212f4f0928ec9Brian 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 1054eb72568541803fe45d04d9e230212f4f0928ec9Brian Paul/** Epsilon for Z comparisons */ 1064eb72568541803fe45d04d9e230212f4f0928ec9Brian Paul#define Z_EPSILON 1e-06 107c62b197b528293abb56b099503344e3cdd7d6c40Brian 108c62b197b528293abb56b099503344e3cdd7d6c40Brian 109c62b197b528293abb56b099503344e3cdd7d6c40Brian/** 1103ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Make fragment program for glBitmap: 1113ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Sample the texture and kill the fragment if the bit is 0. 1123ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * This program will be combined with the user's fragment program. 1133ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 1143ece9ace540447c4f0d340a6f9f27980b54f83fbBrianstatic struct st_fragment_program * 11533f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paulmake_bitmap_fragment_program(GLcontext *ctx, GLuint samplerIndex) 1163ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 1173ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct st_fragment_program *stfp; 1183ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct gl_program *p; 1193ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLuint ic = 0; 1203ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1213ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p = ctx->Driver.NewProgram(ctx, GL_FRAGMENT_PROGRAM_ARB, 0); 1223ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (!p) 1233ece9ace540447c4f0d340a6f9f27980b54f83fbBrian return NULL; 1243ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1256b0be38a6cfecd2babc7175b0877bed522ca9f72Brian p->NumInstructions = 3; 1263ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1273ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions = _mesa_alloc_instructions(p->NumInstructions); 1283ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (!p->Instructions) { 1293ece9ace540447c4f0d340a6f9f27980b54f83fbBrian ctx->Driver.DeleteProgram(ctx, p); 1303ece9ace540447c4f0d340a6f9f27980b54f83fbBrian return NULL; 1313ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 1323ece9ace540447c4f0d340a6f9f27980b54f83fbBrian _mesa_init_instructions(p->Instructions, p->NumInstructions); 1333ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1343ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* TEX tmp0, fragment.texcoord[0], texture[0], 2D; */ 1353ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].Opcode = OPCODE_TEX; 1363ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].DstReg.File = PROGRAM_TEMPORARY; 1373ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].DstReg.Index = 0; 1383ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].SrcReg[0].File = PROGRAM_INPUT; 1393ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].SrcReg[0].Index = FRAG_ATTRIB_TEX0; 14033f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul p->Instructions[ic].TexSrcUnit = samplerIndex; 1413ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].TexSrcTarget = TEXTURE_2D_INDEX; 1423ece9ace540447c4f0d340a6f9f27980b54f83fbBrian ic++; 1433ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1446b0be38a6cfecd2babc7175b0877bed522ca9f72Brian /* KIL if -tmp0 < 0 # texel=0 -> keep / texel=0 -> discard */ 1453ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].Opcode = OPCODE_KIL; 1463ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].SrcReg[0].File = PROGRAM_TEMPORARY; 14793d101f0c3b2b7b6909d6f98a0d04b978b4ae29aKeith Whitwell 14893d101f0c3b2b7b6909d6f98a0d04b978b4ae29aKeith Whitwell if (ctx->st->bitmap.tex_format == PIPE_FORMAT_L8_UNORM) 14993d101f0c3b2b7b6909d6f98a0d04b978b4ae29aKeith Whitwell p->Instructions[ic].SrcReg[0].Swizzle = SWIZZLE_XXXX; 15093d101f0c3b2b7b6909d6f98a0d04b978b4ae29aKeith Whitwell 1513ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].SrcReg[0].Index = 0; 1527db7ff878d3e5a6b345228e6eaee4797bb68b360Brian Paul p->Instructions[ic].SrcReg[0].Negate = NEGATE_XYZW; 1533ece9ace540447c4f0d340a6f9f27980b54f83fbBrian ic++; 1543ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1553ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* END; */ 1563ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic++].Opcode = OPCODE_END; 1573ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1583ece9ace540447c4f0d340a6f9f27980b54f83fbBrian assert(ic == p->NumInstructions); 1593ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1603ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->InputsRead = FRAG_BIT_TEX0; 1613ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->OutputsWritten = 0x0; 16233f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul p->SamplersUsed = (1 << samplerIndex); 1633ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1643ece9ace540447c4f0d340a6f9f27980b54f83fbBrian stfp = (struct st_fragment_program *) p; 1653ece9ace540447c4f0d340a6f9f27980b54f83fbBrian stfp->Base.UsesKill = GL_TRUE; 16693d101f0c3b2b7b6909d6f98a0d04b978b4ae29aKeith Whitwell 1673ece9ace540447c4f0d340a6f9f27980b54f83fbBrian return stfp; 1683ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 1693ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1703ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 17133f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paulstatic int 17233f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paulfind_free_bit(uint bitfield) 17333f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul{ 17433f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul int i; 17533f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul for (i = 0; i < 32; i++) { 17633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul if ((bitfield & (1 << i)) == 0) { 17733f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul return i; 17833f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul } 17933f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul } 18033f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul return -1; 18133f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul} 18233f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul 18333f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul 1843ece9ace540447c4f0d340a6f9f27980b54f83fbBrian/** 1853ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Combine basic bitmap fragment program with the user-defined program. 1863ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 1873ece9ace540447c4f0d340a6f9f27980b54f83fbBrianstatic struct st_fragment_program * 1883ece9ace540447c4f0d340a6f9f27980b54f83fbBriancombined_bitmap_fragment_program(GLcontext *ctx) 1893ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 1903ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct st_context *st = ctx->st; 19133f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul struct st_fragment_program *stfp = st->fp; 1923ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 19333f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul if (!stfp->bitmap_program) { 19433f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul /* 19533f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul * Generate new program which is the user-defined program prefixed 19633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul * with the bitmap sampler/kill instructions. 1973ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 19833f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul struct st_fragment_program *bitmap_prog; 19933f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul uint sampler; 2003ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 20133f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul sampler = find_free_bit(st->fp->Base.Base.SamplersUsed); 20233f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul bitmap_prog = make_bitmap_fragment_program(ctx, sampler); 20333f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul 20433f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul stfp->bitmap_program = (struct st_fragment_program *) 20533f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul _mesa_combine_programs(ctx, 20633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul &bitmap_prog->Base.Base, &stfp->Base.Base); 20733f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul stfp->bitmap_program->bitmap_sampler = sampler; 208ac09b0e0eb30f6691e35638f210c04ac0f867ea8Brian Paul 209ac09b0e0eb30f6691e35638f210c04ac0f867ea8Brian Paul /* done with this after combining */ 210ac09b0e0eb30f6691e35638f210c04ac0f867ea8Brian Paul st_reference_fragprog(st, &bitmap_prog, NULL); 211ac09b0e0eb30f6691e35638f210c04ac0f867ea8Brian Paul 2123ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#if 0 2133ece9ace540447c4f0d340a6f9f27980b54f83fbBrian { 21433f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul struct gl_program *p = &stfp->bitmap_program->Base.Base; 2153ece9ace540447c4f0d340a6f9f27980b54f83fbBrian printf("Combined bitmap program:\n"); 2163ece9ace540447c4f0d340a6f9f27980b54f83fbBrian _mesa_print_program(p); 2173ece9ace540447c4f0d340a6f9f27980b54f83fbBrian printf("InputsRead: 0x%x\n", p->InputsRead); 2183ece9ace540447c4f0d340a6f9f27980b54f83fbBrian printf("OutputsWritten: 0x%x\n", p->OutputsWritten); 2193ece9ace540447c4f0d340a6f9f27980b54f83fbBrian _mesa_print_parameter_list(p->Parameters); 2203ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2213ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#endif 2223ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2233ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* translate to TGSI tokens */ 224e1906ae98ef4d8f153553056552c06ac4292d1f5Keith Whitwell st_translate_fragment_program(st, stfp->bitmap_program); 2253ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2263ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 22733f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul return stfp->bitmap_program; 2283ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 2293ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2303ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2313ece9ace540447c4f0d340a6f9f27980b54f83fbBrian/** 2327146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * Copy user-provide bitmap bits into texture buffer, expanding 2337146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * bits into texels. 234d5b6dd0001c90b896400e69067d21297d7601f32Brian Paul * "On" bits will set texels to 0x0. 2357146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * "Off" bits will not modify texels. 2367146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * Note that the image is actually going to be upside down in 2377146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * the texture. We deal with that with texcoords. 2383ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 2397146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paulstatic void 2407146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paulunpack_bitmap(struct st_context *st, 2417146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul GLint px, GLint py, GLsizei width, GLsizei height, 2427146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul const struct gl_pixelstore_attrib *unpack, 2437146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul const GLubyte *bitmap, 2447146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul ubyte *destBuffer, uint destStride) 2453ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 246d5b6dd0001c90b896400e69067d21297d7601f32Brian Paul destBuffer += py * destStride + px; 2473ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 248d5b6dd0001c90b896400e69067d21297d7601f32Brian Paul _mesa_expand_bitmap(width, height, unpack, bitmap, 249d5b6dd0001c90b896400e69067d21297d7601f32Brian Paul destBuffer, destStride, 0x0); 2507146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul} 2517146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 2527146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 2537146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul/** 2547146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * Create a texture which represents a bitmap image. 2557146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul */ 2567146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paulstatic struct pipe_texture * 2577146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paulmake_bitmap_texture(GLcontext *ctx, GLsizei width, GLsizei height, 2587146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul const struct gl_pixelstore_attrib *unpack, 2597146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul const GLubyte *bitmap) 2607146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul{ 2617146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul struct pipe_context *pipe = ctx->st->pipe; 2627146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul struct pipe_screen *screen = pipe->screen; 2634617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer struct pipe_transfer *transfer; 2647146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul ubyte *dest; 2657146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul struct pipe_texture *pt; 2667146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 2677146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul /* PBO source... */ 2681b448c7a5cafa68eeead2a4c45f4362a9883383bBrian Paul bitmap = _mesa_map_pbo_source(ctx, unpack, bitmap); 2697146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul if (!bitmap) { 2707146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul return NULL; 2717146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul } 2727146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 2737146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul /** 2747146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * Create texture to hold bitmap pattern. 2757146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul */ 2767146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul pt = st_texture_create(ctx->st, PIPE_TEXTURE_2D, ctx->st->bitmap.tex_format, 277f12201567463c7aeb9b76c32f000d577a82e7f92Brian Paul 0, width, height, 1, 278a73ae3d5eb8419feab5aea26573aa41b72f941ebKeith Whitwell PIPE_TEXTURE_USAGE_SAMPLER); 2797146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul if (!pt) { 2801b448c7a5cafa68eeead2a4c45f4362a9883383bBrian Paul _mesa_unmap_pbo_source(ctx, unpack); 2817146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul return NULL; 2827146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul } 2837146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 284e50dd26ca6d0eb0d0f97c2780020ea16e3d4a687Thomas Hellstrom transfer = st_no_flush_get_tex_transfer(st_context(ctx), pt, 0, 0, 0, 285e50dd26ca6d0eb0d0f97c2780020ea16e3d4a687Thomas Hellstrom PIPE_TRANSFER_WRITE, 286e50dd26ca6d0eb0d0f97c2780020ea16e3d4a687Thomas Hellstrom 0, 0, width, height); 2877146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 2884617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer dest = screen->transfer_map(screen, transfer); 2897146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 2904617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer /* Put image into texture transfer */ 2914617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer memset(dest, 0xff, height * transfer->stride); 2927146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul unpack_bitmap(ctx->st, 0, 0, width, height, unpack, bitmap, 2934617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer dest, transfer->stride); 2947146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 2951b448c7a5cafa68eeead2a4c45f4362a9883383bBrian Paul _mesa_unmap_pbo_source(ctx, unpack); 296f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul 2974617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer /* Release transfer */ 2984617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer screen->transfer_unmap(screen, transfer); 2995e27cd46c04a9e7b5904cc014bffd0f4daae31feMichel Dänzer screen->tex_transfer_destroy(transfer); 3003ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3013ece9ace540447c4f0d340a6f9f27980b54f83fbBrian return pt; 3023ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 3033ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 304d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwellstatic GLuint 3053ece9ace540447c4f0d340a6f9f27980b54f83fbBriansetup_bitmap_vertex_data(struct st_context *st, 3063ece9ace540447c4f0d340a6f9f27980b54f83fbBrian int x, int y, int width, int height, 3073ece9ace540447c4f0d340a6f9f27980b54f83fbBrian float z, const float color[4]) 3083ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 3093ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_context *pipe = st->pipe; 3103ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const struct gl_framebuffer *fb = st->ctx->DrawBuffer; 31153174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat fb_width = (GLfloat)fb->Width; 31253174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat fb_height = (GLfloat)fb->Height; 31353174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat x0 = (GLfloat)x; 31453174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat x1 = (GLfloat)(x + width); 31553174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat y0 = (GLfloat)y; 31653174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat y1 = (GLfloat)(y + height); 31753174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat sLeft = (GLfloat)0.0, sRight = (GLfloat)1.0; 31853174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat tTop = (GLfloat)0.0, tBot = (GLfloat)1.0 - tTop; 31953174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat clip_x0 = (GLfloat)(x0 / fb_width * 2.0 - 1.0); 32053174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat clip_y0 = (GLfloat)(y0 / fb_height * 2.0 - 1.0); 32153174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat clip_x1 = (GLfloat)(x1 / fb_width * 2.0 - 1.0); 32253174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat clip_y1 = (GLfloat)(y1 / fb_height * 2.0 - 1.0); 323918199fb0f5d84121e0ac5821168cd0e886b22e9Keith Whitwell 324918199fb0f5d84121e0ac5821168cd0e886b22e9Keith Whitwell /* XXX: Need to improve buffer_write to allow NO_WAIT (as well as 325918199fb0f5d84121e0ac5821168cd0e886b22e9Keith Whitwell * no_flush) updates to buffers where we know there is no conflict 326918199fb0f5d84121e0ac5821168cd0e886b22e9Keith Whitwell * with previous data. Currently using max_slots > 1 will cause 327918199fb0f5d84121e0ac5821168cd0e886b22e9Keith Whitwell * synchronous rendering if the driver flushes its command buffers 328918199fb0f5d84121e0ac5821168cd0e886b22e9Keith Whitwell * between one bitmap and the next. Our flush hook below isn't 329918199fb0f5d84121e0ac5821168cd0e886b22e9Keith Whitwell * sufficient to catch this as the driver doesn't tell us when it 330918199fb0f5d84121e0ac5821168cd0e886b22e9Keith Whitwell * flushes its own command buffers. Until this gets fixed, pay the 331918199fb0f5d84121e0ac5821168cd0e886b22e9Keith Whitwell * price of allocating a new buffer for each bitmap cache-flush to 332918199fb0f5d84121e0ac5821168cd0e886b22e9Keith Whitwell * avoid synchronous rendering. 333918199fb0f5d84121e0ac5821168cd0e886b22e9Keith Whitwell */ 334918199fb0f5d84121e0ac5821168cd0e886b22e9Keith Whitwell const GLuint max_slots = 1; /* 4096 / sizeof(st->bitmap.vertices); */ 3353ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLuint i; 336d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell 337d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell if (st->bitmap.vbuf_slot >= max_slots) { 3385e27cd46c04a9e7b5904cc014bffd0f4daae31feMichel Dänzer pipe_buffer_reference(&st->bitmap.vbuf, NULL); 339d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell st->bitmap.vbuf_slot = 0; 340d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell } 3413ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3423ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (!st->bitmap.vbuf) { 343d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell st->bitmap.vbuf = pipe_buffer_create(pipe->screen, 32, 344d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell PIPE_BUFFER_USAGE_VERTEX, 345d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell max_slots * sizeof(st->bitmap.vertices)); 3463ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 3473ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 348e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian /* Positions are in clip coords since we need to do clipping in case 349e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian * the bitmap quad goes beyond the window bounds. 350e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian */ 351e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[0][0][0] = clip_x0; 352e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[0][0][1] = clip_y0; 3533ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[0][2][0] = sLeft; 3543ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[0][2][1] = tTop; 3553ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 356e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[1][0][0] = clip_x1; 357e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[1][0][1] = clip_y0; 3583ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[1][2][0] = sRight; 3593ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[1][2][1] = tTop; 3603ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 361e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[2][0][0] = clip_x1; 362e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[2][0][1] = clip_y1; 3633ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[2][2][0] = sRight; 3643ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[2][2][1] = tBot; 3653ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 366e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[3][0][0] = clip_x0; 367e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[3][0][1] = clip_y1; 3683ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[3][2][0] = sLeft; 3693ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[3][2][1] = tBot; 3703ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3713ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* same for all verts: */ 3723ece9ace540447c4f0d340a6f9f27980b54f83fbBrian for (i = 0; i < 4; i++) { 3733ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][0][2] = z; 3743ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][0][3] = 1.0; 3753ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][1][0] = color[0]; 3763ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][1][1] = color[1]; 3773ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][1][2] = color[2]; 3783ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][1][3] = color[3]; 3793ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][2][2] = 0.0; /*R*/ 3803ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][2][3] = 1.0; /*Q*/ 3813ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 3823ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3833ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* put vertex data into vbuf */ 3848410f7cde30cc1170ae266cf3a0eb7e0e37c454aJosé Fonseca st_no_flush_pipe_buffer_write_nooverlap(st, 3858410f7cde30cc1170ae266cf3a0eb7e0e37c454aJosé Fonseca st->bitmap.vbuf, 3868410f7cde30cc1170ae266cf3a0eb7e0e37c454aJosé Fonseca st->bitmap.vbuf_slot * sizeof st->bitmap.vertices, 3878410f7cde30cc1170ae266cf3a0eb7e0e37c454aJosé Fonseca sizeof st->bitmap.vertices, 3888410f7cde30cc1170ae266cf3a0eb7e0e37c454aJosé Fonseca st->bitmap.vertices); 389d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell 390d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell return st->bitmap.vbuf_slot++ * sizeof st->bitmap.vertices; 3913ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 3923ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3933ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3943ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3953ece9ace540447c4f0d340a6f9f27980b54f83fbBrian/** 3963ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Render a glBitmap by drawing a textured quad 3973ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 3983ece9ace540447c4f0d340a6f9f27980b54f83fbBrianstatic void 3993ece9ace540447c4f0d340a6f9f27980b54f83fbBriandraw_bitmap_quad(GLcontext *ctx, GLint x, GLint y, GLfloat z, 4003ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLsizei width, GLsizei height, 401318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul struct pipe_texture *pt, 402318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul const GLfloat *color) 4033ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 4043ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct st_context *st = ctx->st; 4053ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_context *pipe = ctx->st->pipe; 4063ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct cso_context *cso = ctx->st->cso_context; 407c62b197b528293abb56b099503344e3cdd7d6c40Brian struct st_fragment_program *stfp; 4083ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLuint maxSize; 409d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell GLuint offset; 4103ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 411c62b197b528293abb56b099503344e3cdd7d6c40Brian stfp = combined_bitmap_fragment_program(ctx); 412c62b197b528293abb56b099503344e3cdd7d6c40Brian 413277089b81ae498f598efdc74fafda9873864ee54Brian Paul /* As an optimization, Mesa's fragment programs will sometimes get the 414277089b81ae498f598efdc74fafda9873864ee54Brian Paul * primary color from a statevar/constant rather than a varying variable. 415277089b81ae498f598efdc74fafda9873864ee54Brian Paul * when that's the case, we need to ensure that we use the 'color' 416277089b81ae498f598efdc74fafda9873864ee54Brian Paul * parameter and not the current attribute color (which may have changed 417277089b81ae498f598efdc74fafda9873864ee54Brian Paul * through glRasterPos and state validation. 418277089b81ae498f598efdc74fafda9873864ee54Brian Paul * So, we force the proper color here. Not elegant, but it works. 419277089b81ae498f598efdc74fafda9873864ee54Brian Paul */ 420277089b81ae498f598efdc74fafda9873864ee54Brian Paul { 421277089b81ae498f598efdc74fafda9873864ee54Brian Paul GLfloat colorSave[4]; 422277089b81ae498f598efdc74fafda9873864ee54Brian Paul COPY_4V(colorSave, ctx->Current.Attrib[VERT_ATTRIB_COLOR0]); 423277089b81ae498f598efdc74fafda9873864ee54Brian Paul COPY_4V(ctx->Current.Attrib[VERT_ATTRIB_COLOR0], color); 424277089b81ae498f598efdc74fafda9873864ee54Brian Paul st_upload_constants(st, stfp->Base.Base.Parameters, PIPE_SHADER_FRAGMENT); 425277089b81ae498f598efdc74fafda9873864ee54Brian Paul COPY_4V(ctx->Current.Attrib[VERT_ATTRIB_COLOR0], colorSave); 426277089b81ae498f598efdc74fafda9873864ee54Brian Paul } 427277089b81ae498f598efdc74fafda9873864ee54Brian Paul 428277089b81ae498f598efdc74fafda9873864ee54Brian Paul 4293ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* limit checks */ 430c62b197b528293abb56b099503344e3cdd7d6c40Brian /* XXX if the bitmap is larger than the max texture size, break 4313ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * it up into chunks. 4323ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 4333ece9ace540447c4f0d340a6f9f27980b54f83fbBrian maxSize = 1 << (pipe->screen->get_param(pipe->screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS) - 1); 43453174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca assert(width <= (GLsizei)maxSize); 43553174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca assert(height <= (GLsizei)maxSize); 4363ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4373ece9ace540447c4f0d340a6f9f27980b54f83fbBrian cso_save_rasterizer(cso); 438d246274b9c48c01b61490f0a76c22aebb8e64e1eBrian Paul cso_save_samplers(cso); 439ddc0f91bfc571dcd05c13f094c179b4250e53bccBrian cso_save_sampler_textures(cso); 440e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian cso_save_viewport(cso); 44165efe807b9067aa07b382e3c4d9cea6222c5fc6bMichel Dänzer cso_save_fragment_shader(cso); 44265efe807b9067aa07b382e3c4d9cea6222c5fc6bMichel Dänzer cso_save_vertex_shader(cso); 4433ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4443ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* rasterizer state: just scissor */ 445e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.rasterizer.scissor = ctx->Scissor.Enabled; 446e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian cso_set_rasterizer(cso, &st->bitmap.rasterizer); 4473ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4483ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* fragment shader state: TEX lookup program */ 44901dfa6cde157321f565bab949f23f367ed20fa0eKeith Whitwell cso_set_fragment_shader_handle(cso, stfp->driver_shader); 4503ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4513ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* vertex shader state: position + texcoord pass-through */ 45201dfa6cde157321f565bab949f23f367ed20fa0eKeith Whitwell cso_set_vertex_shader_handle(cso, st->bitmap.vs); 4533ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 45433f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul /* user samplers, plus our bitmap sampler */ 45533f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul { 45633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul struct pipe_sampler_state *samplers[PIPE_MAX_SAMPLERS]; 45733f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul uint num = MAX2(stfp->bitmap_sampler + 1, st->state.num_samplers); 45833f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul uint i; 45933f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul for (i = 0; i < st->state.num_samplers; i++) { 46033f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul samplers[i] = &st->state.samplers[i]; 46133f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul } 46233f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul samplers[stfp->bitmap_sampler] = &st->bitmap.sampler; 463277089b81ae498f598efdc74fafda9873864ee54Brian Paul cso_set_samplers(cso, num, (const struct pipe_sampler_state **) samplers); 464277089b81ae498f598efdc74fafda9873864ee54Brian Paul } 46533f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul 46633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul /* user textures, plus the bitmap texture */ 46733f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul { 46833f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul struct pipe_texture *textures[PIPE_MAX_SAMPLERS]; 46933f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul uint num = MAX2(stfp->bitmap_sampler + 1, st->state.num_textures); 47033f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul memcpy(textures, st->state.sampler_texture, sizeof(textures)); 47133f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul textures[stfp->bitmap_sampler] = pt; 47233f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul cso_set_sampler_textures(cso, num, textures); 47333f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul } 474e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian 475e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian /* viewport state: viewport matching window dims */ 4763ece9ace540447c4f0d340a6f9f27980b54f83fbBrian { 477e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const struct gl_framebuffer *fb = st->ctx->DrawBuffer; 478e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const GLboolean invert = (st_fb_orientation(fb) == Y_0_TOP); 47953174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat width = (GLfloat)fb->Width; 48053174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat height = (GLfloat)fb->Height; 481e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian struct pipe_viewport_state vp; 4825c1a78b7a85d23ad1358b34d03a0002a19483655José Fonseca vp.scale[0] = 0.5f * width; 4835c1a78b7a85d23ad1358b34d03a0002a19483655José Fonseca vp.scale[1] = height * (invert ? -0.5f : 0.5f); 4845c1a78b7a85d23ad1358b34d03a0002a19483655José Fonseca vp.scale[2] = 1.0f; 4855c1a78b7a85d23ad1358b34d03a0002a19483655José Fonseca vp.scale[3] = 1.0f; 4865c1a78b7a85d23ad1358b34d03a0002a19483655José Fonseca vp.translate[0] = 0.5f * width; 4875c1a78b7a85d23ad1358b34d03a0002a19483655José Fonseca vp.translate[1] = 0.5f * height; 4885c1a78b7a85d23ad1358b34d03a0002a19483655José Fonseca vp.translate[2] = 0.0f; 4895c1a78b7a85d23ad1358b34d03a0002a19483655José Fonseca vp.translate[3] = 0.0f; 490e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian cso_set_viewport(cso, &vp); 4913ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 4923ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4933ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* draw textured quad */ 4944eb72568541803fe45d04d9e230212f4f0928ec9Brian Paul offset = setup_bitmap_vertex_data(st, x, y, width, height, z, color); 4953ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 496d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell util_draw_vertex_buffer(pipe, st->bitmap.vbuf, offset, 4973ece9ace540447c4f0d340a6f9f27980b54f83fbBrian PIPE_PRIM_TRIANGLE_FAN, 4983ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4, /* verts */ 4993ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3); /* attribs/vert */ 5003ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 5013ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 5023ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* restore state */ 5033ece9ace540447c4f0d340a6f9f27980b54f83fbBrian cso_restore_rasterizer(cso); 5043ece9ace540447c4f0d340a6f9f27980b54f83fbBrian cso_restore_samplers(cso); 505ddc0f91bfc571dcd05c13f094c179b4250e53bccBrian cso_restore_sampler_textures(cso); 506e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian cso_restore_viewport(cso); 507fd4acd6fdaaad4871327d081f5501680ed9da2edMichel Dänzer cso_restore_fragment_shader(cso); 508fd4acd6fdaaad4871327d081f5501680ed9da2edMichel Dänzer cso_restore_vertex_shader(cso); 5093ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 5103ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 5113ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 512737e34aee598f32f8ff078ba823ed149b282ebc8Brianstatic void 513737e34aee598f32f8ff078ba823ed149b282ebc8Brianreset_cache(struct st_context *st) 514737e34aee598f32f8ff078ba823ed149b282ebc8Brian{ 515d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul struct pipe_context *pipe = st->pipe; 516d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul struct pipe_screen *screen = pipe->screen; 517d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul struct bitmap_cache *cache = st->bitmap.cache; 518737e34aee598f32f8ff078ba823ed149b282ebc8Brian 519133501bef2933395f14b2ebdfeda84279be93c60Brian Paul /*memset(cache->buffer, 0xff, sizeof(cache->buffer));*/ 520d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->empty = GL_TRUE; 521737e34aee598f32f8ff078ba823ed149b282ebc8Brian 522d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->xmin = 1000000; 523d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->xmax = -1000000; 524d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->ymin = 1000000; 525d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->ymax = -1000000; 5263ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 527439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz if (cache->trans) { 5285e27cd46c04a9e7b5904cc014bffd0f4daae31feMichel Dänzer screen->tex_transfer_destroy(cache->trans); 529439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz cache->trans = NULL; 530439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz } 5312212c214f1890091c102d4cb3c69ec2df2132322Brian Paul 532d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul assert(!cache->texture); 533c62b197b528293abb56b099503344e3cdd7d6c40Brian 534d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul /* allocate a new texture */ 535d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->texture = st_texture_create(st, PIPE_TEXTURE_2D, 536d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul st->bitmap.tex_format, 0, 537d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul BITMAP_CACHE_WIDTH, BITMAP_CACHE_HEIGHT, 538f12201567463c7aeb9b76c32f000d577a82e7f92Brian Paul 1, PIPE_TEXTURE_USAGE_SAMPLER); 539c62b197b528293abb56b099503344e3cdd7d6c40Brian 540439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz} 541439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz 542439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantzstatic void 543439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantzcreate_cache_trans(struct st_context *st) 544439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz{ 545439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz struct pipe_context *pipe = st->pipe; 546439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz struct pipe_screen *screen = pipe->screen; 547439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz struct bitmap_cache *cache = st->bitmap.cache; 548439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz 549439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz if (cache->trans) 550439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz return; 551439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz 5524617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer /* Map the texture transfer. 553d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul * Subsequent glBitmap calls will write into the texture image. 554d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul */ 555e50dd26ca6d0eb0d0f97c2780020ea16e3d4a687Thomas Hellstrom cache->trans = st_no_flush_get_tex_transfer(st, cache->texture, 0, 0, 0, 556e50dd26ca6d0eb0d0f97c2780020ea16e3d4a687Thomas Hellstrom PIPE_TRANSFER_WRITE, 0, 0, 557e50dd26ca6d0eb0d0f97c2780020ea16e3d4a687Thomas Hellstrom BITMAP_CACHE_WIDTH, 558e50dd26ca6d0eb0d0f97c2780020ea16e3d4a687Thomas Hellstrom BITMAP_CACHE_HEIGHT); 5594617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer cache->buffer = screen->transfer_map(screen, cache->trans); 560d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul 561d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul /* init image to all 0xff */ 5624617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer memset(cache->buffer, 0xff, cache->trans->stride * BITMAP_CACHE_HEIGHT); 563c62b197b528293abb56b099503344e3cdd7d6c40Brian} 564c62b197b528293abb56b099503344e3cdd7d6c40Brian 565c62b197b528293abb56b099503344e3cdd7d6c40Brian 566c62b197b528293abb56b099503344e3cdd7d6c40Brian/** 567c62b197b528293abb56b099503344e3cdd7d6c40Brian * If there's anything in the bitmap cache, draw/flush it now. 568c62b197b528293abb56b099503344e3cdd7d6c40Brian */ 569c62b197b528293abb56b099503344e3cdd7d6c40Brianvoid 570c62b197b528293abb56b099503344e3cdd7d6c40Brianst_flush_bitmap_cache(struct st_context *st) 571c62b197b528293abb56b099503344e3cdd7d6c40Brian{ 572c62b197b528293abb56b099503344e3cdd7d6c40Brian if (!st->bitmap.cache->empty) { 57344a7bd0019b9af9ff01336df0aa6eb206f5dc2e9Michel Dänzer struct bitmap_cache *cache = st->bitmap.cache; 57444a7bd0019b9af9ff01336df0aa6eb206f5dc2e9Michel Dänzer 575985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul if (st->ctx->DrawBuffer) { 576985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul struct pipe_context *pipe = st->pipe; 577c9ed86a96483063f3d6789ed16645a3dca77d726Keith Whitwell struct pipe_screen *screen = pipe->screen; 578985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul 579985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul assert(cache->xmin <= cache->xmax); 580d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell 581d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell/* printf("flush size %d x %d at %d, %d\n", 582985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul cache->xmax - cache->xmin, 583985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul cache->ymax - cache->ymin, 584985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul cache->xpos, cache->ypos); 585d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell*/ 586985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul 5874617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer /* The texture transfer has been mapped until now. 5884617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer * So unmap and release the texture transfer before drawing. 5896fb40092261b891b78e504f453fddf041f9efac6Brian Paul */ 590439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz if (cache->trans) { 591439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz screen->transfer_unmap(screen, cache->trans); 592439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz cache->buffer = NULL; 5932212c214f1890091c102d4cb3c69ec2df2132322Brian Paul 594439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz screen->tex_transfer_destroy(cache->trans); 595439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz cache->trans = NULL; 596439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz } 5976fb40092261b891b78e504f453fddf041f9efac6Brian Paul 598985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul draw_bitmap_quad(st->ctx, 599985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul cache->xpos, 600985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul cache->ypos, 6014eb72568541803fe45d04d9e230212f4f0928ec9Brian Paul cache->zpos, 602985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul BITMAP_CACHE_WIDTH, BITMAP_CACHE_HEIGHT, 603318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul cache->texture, 604318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul cache->color); 605985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul } 60644a7bd0019b9af9ff01336df0aa6eb206f5dc2e9Michel Dänzer 60744a7bd0019b9af9ff01336df0aa6eb206f5dc2e9Michel Dänzer /* release/free the texture */ 60844a7bd0019b9af9ff01336df0aa6eb206f5dc2e9Michel Dänzer pipe_texture_reference(&cache->texture, NULL); 60944a7bd0019b9af9ff01336df0aa6eb206f5dc2e9Michel Dänzer 610737e34aee598f32f8ff078ba823ed149b282ebc8Brian reset_cache(st); 611c62b197b528293abb56b099503344e3cdd7d6c40Brian } 612c62b197b528293abb56b099503344e3cdd7d6c40Brian} 613c62b197b528293abb56b099503344e3cdd7d6c40Brian 614d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell/* Flush bitmap cache and release vertex buffer. 615d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell */ 616d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwellvoid 617d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwellst_flush_bitmap( struct st_context *st ) 618d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell{ 619d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell st_flush_bitmap_cache(st); 620d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell 621d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell /* Release vertex buffer to avoid synchronous rendering if we were 622d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell * to map it in the next frame. 623d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell */ 6245e27cd46c04a9e7b5904cc014bffd0f4daae31feMichel Dänzer pipe_buffer_reference(&st->bitmap.vbuf, NULL); 625d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell st->bitmap.vbuf_slot = 0; 626d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell} 627d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell 628c62b197b528293abb56b099503344e3cdd7d6c40Brian 629c62b197b528293abb56b099503344e3cdd7d6c40Brian/** 630c62b197b528293abb56b099503344e3cdd7d6c40Brian * Try to accumulate this glBitmap call in the bitmap cache. 631c62b197b528293abb56b099503344e3cdd7d6c40Brian * \return GL_TRUE for success, GL_FALSE if bitmap is too large, etc. 632c62b197b528293abb56b099503344e3cdd7d6c40Brian */ 633c62b197b528293abb56b099503344e3cdd7d6c40Brianstatic GLboolean 634c62b197b528293abb56b099503344e3cdd7d6c40Brianaccum_bitmap(struct st_context *st, 635c62b197b528293abb56b099503344e3cdd7d6c40Brian GLint x, GLint y, GLsizei width, GLsizei height, 636c62b197b528293abb56b099503344e3cdd7d6c40Brian const struct gl_pixelstore_attrib *unpack, 637c62b197b528293abb56b099503344e3cdd7d6c40Brian const GLubyte *bitmap ) 638c62b197b528293abb56b099503344e3cdd7d6c40Brian{ 639737e34aee598f32f8ff078ba823ed149b282ebc8Brian struct bitmap_cache *cache = st->bitmap.cache; 640218590f70723ce0683f70a0c7aab229f9bbd89a6Vinson Lee int px = -999, py = -999; 6414eb72568541803fe45d04d9e230212f4f0928ec9Brian Paul const GLfloat z = st->ctx->Current.RasterPos[2]; 642c62b197b528293abb56b099503344e3cdd7d6c40Brian 643c62b197b528293abb56b099503344e3cdd7d6c40Brian if (width > BITMAP_CACHE_WIDTH || 644c62b197b528293abb56b099503344e3cdd7d6c40Brian height > BITMAP_CACHE_HEIGHT) 645c62b197b528293abb56b099503344e3cdd7d6c40Brian return GL_FALSE; /* too big to cache */ 646c62b197b528293abb56b099503344e3cdd7d6c40Brian 647737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (!cache->empty) { 648737e34aee598f32f8ff078ba823ed149b282ebc8Brian px = x - cache->xpos; /* pos in buffer */ 649737e34aee598f32f8ff078ba823ed149b282ebc8Brian py = y - cache->ypos; 650c62b197b528293abb56b099503344e3cdd7d6c40Brian if (px < 0 || px + width > BITMAP_CACHE_WIDTH || 651318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul py < 0 || py + height > BITMAP_CACHE_HEIGHT || 6524eb72568541803fe45d04d9e230212f4f0928ec9Brian Paul !TEST_EQ_4V(st->ctx->Current.RasterColor, cache->color) || 6534eb72568541803fe45d04d9e230212f4f0928ec9Brian Paul ((fabs(z - cache->zpos) > Z_EPSILON))) { 654318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul /* This bitmap would extend beyond cache bounds, or the bitmap 655318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul * color is changing 656c62b197b528293abb56b099503344e3cdd7d6c40Brian * so flush and continue. 657c62b197b528293abb56b099503344e3cdd7d6c40Brian */ 658c62b197b528293abb56b099503344e3cdd7d6c40Brian st_flush_bitmap_cache(st); 659c62b197b528293abb56b099503344e3cdd7d6c40Brian } 660c62b197b528293abb56b099503344e3cdd7d6c40Brian } 661c62b197b528293abb56b099503344e3cdd7d6c40Brian 662737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (cache->empty) { 663c62b197b528293abb56b099503344e3cdd7d6c40Brian /* Initialize. Center bitmap vertically in the buffer. */ 664c62b197b528293abb56b099503344e3cdd7d6c40Brian px = 0; 665c62b197b528293abb56b099503344e3cdd7d6c40Brian py = (BITMAP_CACHE_HEIGHT - height) / 2; 666737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->xpos = x; 667737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->ypos = y - py; 6684eb72568541803fe45d04d9e230212f4f0928ec9Brian Paul cache->zpos = z; 669737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->empty = GL_FALSE; 670318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul COPY_4FV(cache->color, st->ctx->Current.RasterColor); 671c62b197b528293abb56b099503344e3cdd7d6c40Brian } 672c62b197b528293abb56b099503344e3cdd7d6c40Brian 673c62b197b528293abb56b099503344e3cdd7d6c40Brian assert(px != -999); 674218590f70723ce0683f70a0c7aab229f9bbd89a6Vinson Lee assert(py != -999); 675c62b197b528293abb56b099503344e3cdd7d6c40Brian 676737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (x < cache->xmin) 677737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->xmin = x; 678737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (y < cache->ymin) 679737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->ymin = y; 680737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (x + width > cache->xmax) 681737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->xmax = x + width; 682737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (y + height > cache->ymax) 683737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->ymax = y + height; 684737e34aee598f32f8ff078ba823ed149b282ebc8Brian 685439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz /* create the transfer if needed */ 686439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz create_cache_trans(st); 687439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz 6887146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul unpack_bitmap(st, px, py, width, height, unpack, bitmap, 6897146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul cache->buffer, BITMAP_CACHE_WIDTH); 690c62b197b528293abb56b099503344e3cdd7d6c40Brian 691c62b197b528293abb56b099503344e3cdd7d6c40Brian return GL_TRUE; /* accumulated */ 692c62b197b528293abb56b099503344e3cdd7d6c40Brian} 693c62b197b528293abb56b099503344e3cdd7d6c40Brian 694c62b197b528293abb56b099503344e3cdd7d6c40Brian 695c62b197b528293abb56b099503344e3cdd7d6c40Brian 696c62b197b528293abb56b099503344e3cdd7d6c40Brian/** 697c62b197b528293abb56b099503344e3cdd7d6c40Brian * Called via ctx->Driver.Bitmap() 698c62b197b528293abb56b099503344e3cdd7d6c40Brian */ 699c62b197b528293abb56b099503344e3cdd7d6c40Brianstatic void 7003ece9ace540447c4f0d340a6f9f27980b54f83fbBrianst_Bitmap(GLcontext *ctx, GLint x, GLint y, GLsizei width, GLsizei height, 7013ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const struct gl_pixelstore_attrib *unpack, const GLubyte *bitmap ) 7023ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 7033ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct st_context *st = ctx->st; 7043ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_texture *pt; 7053ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 70629d9f6b0d263b6ea2f89ea955d53d2671d9a6e43Brian Paul if (width == 0 || height == 0) 70729d9f6b0d263b6ea2f89ea955d53d2671d9a6e43Brian Paul return; 70829d9f6b0d263b6ea2f89ea955d53d2671d9a6e43Brian Paul 7091ecb2e4a7a5881d5a98679b421d78fd11c729ebcBrian Paul st_validate_state(st); 7101ecb2e4a7a5881d5a98679b421d78fd11c729ebcBrian Paul 7113ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (!st->bitmap.vs) { 7123ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* create pass-through vertex shader now */ 7133ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const uint semantic_names[] = { TGSI_SEMANTIC_POSITION, 7143ece9ace540447c4f0d340a6f9f27980b54f83fbBrian TGSI_SEMANTIC_COLOR, 7153ece9ace540447c4f0d340a6f9f27980b54f83fbBrian TGSI_SEMANTIC_GENERIC }; 7163ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const uint semantic_indexes[] = { 0, 0, 0 }; 7173ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vs = util_make_vertex_passthrough_shader(st->pipe, 3, 7183ece9ace540447c4f0d340a6f9f27980b54f83fbBrian semantic_names, 719fa0f48504a32642d688d4b81f62eea54c693b23fKeith Whitwell semantic_indexes); 7203ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 7213ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 722c62b197b528293abb56b099503344e3cdd7d6c40Brian if (UseBitmapCache && accum_bitmap(st, x, y, width, height, unpack, bitmap)) 723c62b197b528293abb56b099503344e3cdd7d6c40Brian return; 7243ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 7253ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pt = make_bitmap_texture(ctx, width, height, unpack, bitmap); 7263ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (pt) { 7276f8286163c79a8187c2912a9b673a6f11f4f60c6Brian assert(pt->target == PIPE_TEXTURE_2D); 7283ece9ace540447c4f0d340a6f9f27980b54f83fbBrian draw_bitmap_quad(ctx, x, y, ctx->Current.RasterPos[2], 729318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul width, height, pt, 730318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul st->ctx->Current.RasterColor); 731d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul /* release/free the texture */ 7323ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pipe_texture_reference(&pt, NULL); 7333ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 7343ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 7353ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 7363ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 737c62b197b528293abb56b099503344e3cdd7d6c40Brian/** Per-context init */ 738c62b197b528293abb56b099503344e3cdd7d6c40Brianvoid 739c62b197b528293abb56b099503344e3cdd7d6c40Brianst_init_bitmap_functions(struct dd_function_table *functions) 7403ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 7413ece9ace540447c4f0d340a6f9f27980b54f83fbBrian functions->Bitmap = st_Bitmap; 7423ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 7433ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 7443ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 745c62b197b528293abb56b099503344e3cdd7d6c40Brian/** Per-context init */ 746c62b197b528293abb56b099503344e3cdd7d6c40Brianvoid 747c62b197b528293abb56b099503344e3cdd7d6c40Brianst_init_bitmap(struct st_context *st) 748c62b197b528293abb56b099503344e3cdd7d6c40Brian{ 749e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian struct pipe_sampler_state *sampler = &st->bitmap.sampler; 750eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul struct pipe_context *pipe = st->pipe; 751eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul struct pipe_screen *screen = pipe->screen; 752e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian 753e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian /* init sampler state once */ 754e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian memset(sampler, 0, sizeof(*sampler)); 755e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->wrap_s = PIPE_TEX_WRAP_CLAMP; 756e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->wrap_t = PIPE_TEX_WRAP_CLAMP; 757e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->wrap_r = PIPE_TEX_WRAP_CLAMP; 758e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->min_img_filter = PIPE_TEX_FILTER_NEAREST; 759e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->min_mip_filter = PIPE_TEX_MIPFILTER_NONE; 760e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->mag_img_filter = PIPE_TEX_FILTER_NEAREST; 761e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->normalized_coords = 1; 762e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian 7636a382250a10e7022e93b6be6fe4657445d85a568Brian /* init baseline rasterizer state once */ 764e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian memset(&st->bitmap.rasterizer, 0, sizeof(st->bitmap.rasterizer)); 765124e1345c9ba4abe17bb04b8781ec0fe803eda7bBrian st->bitmap.rasterizer.gl_rasterization_rules = 1; 766e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian 767eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul /* find a usable texture format */ 7688aafc03b260ab8923f1b373f7effa75bcdb40a72José Fonseca if (screen->is_format_supported(screen, PIPE_FORMAT_I8_UNORM, PIPE_TEXTURE_2D, 7698aafc03b260ab8923f1b373f7effa75bcdb40a72José Fonseca PIPE_TEXTURE_USAGE_SAMPLER, 0)) { 77054f94a790e4488445347abcff9a636a9c440d7f9Brian Paul st->bitmap.tex_format = PIPE_FORMAT_I8_UNORM; 771eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul } 772fe60dbc536e2fb94cf7bc5262ebd7817c16eb9e7Keith Whitwell else if (screen->is_format_supported(screen, PIPE_FORMAT_A8_UNORM, PIPE_TEXTURE_2D, 773fe60dbc536e2fb94cf7bc5262ebd7817c16eb9e7Keith Whitwell PIPE_TEXTURE_USAGE_SAMPLER, 0)) { 774fe60dbc536e2fb94cf7bc5262ebd7817c16eb9e7Keith Whitwell st->bitmap.tex_format = PIPE_FORMAT_A8_UNORM; 775fe60dbc536e2fb94cf7bc5262ebd7817c16eb9e7Keith Whitwell } 77693d101f0c3b2b7b6909d6f98a0d04b978b4ae29aKeith Whitwell else if (screen->is_format_supported(screen, PIPE_FORMAT_L8_UNORM, PIPE_TEXTURE_2D, 77793d101f0c3b2b7b6909d6f98a0d04b978b4ae29aKeith Whitwell PIPE_TEXTURE_USAGE_SAMPLER, 0)) { 77893d101f0c3b2b7b6909d6f98a0d04b978b4ae29aKeith Whitwell st->bitmap.tex_format = PIPE_FORMAT_L8_UNORM; 77993d101f0c3b2b7b6909d6f98a0d04b978b4ae29aKeith Whitwell } 780eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul else { 781eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul /* XXX support more formats */ 782eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul assert(0); 783eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul } 784eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul 785d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul /* alloc bitmap cache object */ 786f1a59a6dd7b7b0523db191d82b3af1a841c6475dBrian Paul st->bitmap.cache = ST_CALLOC_STRUCT(bitmap_cache); 787d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul 788d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul reset_cache(st); 789c62b197b528293abb56b099503344e3cdd7d6c40Brian} 790c62b197b528293abb56b099503344e3cdd7d6c40Brian 791c62b197b528293abb56b099503344e3cdd7d6c40Brian 792c62b197b528293abb56b099503344e3cdd7d6c40Brian/** Per-context tear-down */ 7933ece9ace540447c4f0d340a6f9f27980b54f83fbBrianvoid 7943ece9ace540447c4f0d340a6f9f27980b54f83fbBrianst_destroy_bitmap(struct st_context *st) 7953ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 7963ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_context *pipe = st->pipe; 797b4219e35e2de783ca03e53c311a8a56f8b633aa1Brian Paul struct pipe_screen *screen = pipe->screen; 798b4219e35e2de783ca03e53c311a8a56f8b633aa1Brian Paul struct bitmap_cache *cache = st->bitmap.cache; 799b4219e35e2de783ca03e53c311a8a56f8b633aa1Brian Paul 800439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz 8013ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 8023ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (st->bitmap.vs) { 803a770d40c3d4977e2c134661b5d8facaea446b6eaBrian Paul cso_delete_vertex_shader(st->cso_context, st->bitmap.vs); 8043ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vs = NULL; 8053ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 806c62b197b528293abb56b099503344e3cdd7d6c40Brian 8073ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (st->bitmap.vbuf) { 8085e27cd46c04a9e7b5904cc014bffd0f4daae31feMichel Dänzer pipe_buffer_reference(&st->bitmap.vbuf, NULL); 8093ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vbuf = NULL; 8103ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 8113ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 812439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz if (cache) { 813439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz if (cache->trans) { 814439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz screen->transfer_unmap(screen, cache->trans); 815439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz screen->tex_transfer_destroy(cache->trans); 816439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz } 8175e27cd46c04a9e7b5904cc014bffd0f4daae31feMichel Dänzer pipe_texture_reference(&st->bitmap.cache->texture, NULL); 8181a2f4dd8768703fbc1b2a0d5be342345644805b4Brian Paul _mesa_free(st->bitmap.cache); 819c62b197b528293abb56b099503344e3cdd7d6c40Brian st->bitmap.cache = NULL; 820c62b197b528293abb56b099503344e3cdd7d6c40Brian } 821c62b197b528293abb56b099503344e3cdd7d6c40Brian} 822