st_cb_bitmap.c revision e66cb602b79f52bd1f01b1c3f7af039eeff283a6
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" 533ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "pipe/p_winsys.h" 543ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "util/p_tile.h" 553ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "util/u_draw_quad.h" 563ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "util/u_simple_shaders.h" 573ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "shader/prog_instruction.h" 583ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "cso_cache/cso_context.h" 593ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 603ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 613ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 623ece9ace540447c4f0d340a6f9f27980b54f83fbBrian/** 63c62b197b528293abb56b099503344e3cdd7d6c40Brian * The bitmap cache attempts to accumulate multiple glBitmap calls in a 64c62b197b528293abb56b099503344e3cdd7d6c40Brian * buffer which is then rendered en mass upon a flush, state change, etc. 65c62b197b528293abb56b099503344e3cdd7d6c40Brian * A wide, short buffer is used to target the common case of a series 66c62b197b528293abb56b099503344e3cdd7d6c40Brian * of glBitmap calls being used to draw text. 67c62b197b528293abb56b099503344e3cdd7d6c40Brian */ 687292db2138001b48bba006cc08e9ff7091d16559Brianstatic GLboolean UseBitmapCache = GL_TRUE; 69c62b197b528293abb56b099503344e3cdd7d6c40Brian 70c62b197b528293abb56b099503344e3cdd7d6c40Brian 71c62b197b528293abb56b099503344e3cdd7d6c40Brian#define BITMAP_CACHE_WIDTH 512 72c62b197b528293abb56b099503344e3cdd7d6c40Brian#define BITMAP_CACHE_HEIGHT 32 73c62b197b528293abb56b099503344e3cdd7d6c40Brian 74c62b197b528293abb56b099503344e3cdd7d6c40Brianstruct bitmap_cache 75c62b197b528293abb56b099503344e3cdd7d6c40Brian{ 76c62b197b528293abb56b099503344e3cdd7d6c40Brian /** Window pos to render the cached image */ 77c62b197b528293abb56b099503344e3cdd7d6c40Brian GLint xpos, ypos; 78737e34aee598f32f8ff078ba823ed149b282ebc8Brian /** Bounds of region used in window coords */ 79737e34aee598f32f8ff078ba823ed149b282ebc8Brian GLint xmin, ymin, xmax, ymax; 80c62b197b528293abb56b099503344e3cdd7d6c40Brian struct pipe_texture *texture; 81737e34aee598f32f8ff078ba823ed149b282ebc8Brian GLboolean empty; 82737e34aee598f32f8ff078ba823ed149b282ebc8Brian /** An I8 texture image: */ 83737e34aee598f32f8ff078ba823ed149b282ebc8Brian GLubyte buffer[BITMAP_CACHE_HEIGHT][BITMAP_CACHE_WIDTH]; 84c62b197b528293abb56b099503344e3cdd7d6c40Brian}; 85c62b197b528293abb56b099503344e3cdd7d6c40Brian 86c62b197b528293abb56b099503344e3cdd7d6c40Brian 87c62b197b528293abb56b099503344e3cdd7d6c40Brian 88c62b197b528293abb56b099503344e3cdd7d6c40Brian 89c62b197b528293abb56b099503344e3cdd7d6c40Brian/** 903ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Make fragment program for glBitmap: 913ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Sample the texture and kill the fragment if the bit is 0. 923ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * This program will be combined with the user's fragment program. 933ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 943ece9ace540447c4f0d340a6f9f27980b54f83fbBrianstatic struct st_fragment_program * 953ece9ace540447c4f0d340a6f9f27980b54f83fbBrianmake_bitmap_fragment_program(GLcontext *ctx) 963ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 973ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct st_fragment_program *stfp; 983ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct gl_program *p; 993ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLuint ic = 0; 1003ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1013ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p = ctx->Driver.NewProgram(ctx, GL_FRAGMENT_PROGRAM_ARB, 0); 1023ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (!p) 1033ece9ace540447c4f0d340a6f9f27980b54f83fbBrian return NULL; 1043ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1053ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->NumInstructions = 5; 1063ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1073ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions = _mesa_alloc_instructions(p->NumInstructions); 1083ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (!p->Instructions) { 1093ece9ace540447c4f0d340a6f9f27980b54f83fbBrian ctx->Driver.DeleteProgram(ctx, p); 1103ece9ace540447c4f0d340a6f9f27980b54f83fbBrian return NULL; 1113ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 1123ece9ace540447c4f0d340a6f9f27980b54f83fbBrian _mesa_init_instructions(p->Instructions, p->NumInstructions); 1133ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1143ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* TEX tmp0, fragment.texcoord[0], texture[0], 2D; */ 1153ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].Opcode = OPCODE_TEX; 1163ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].DstReg.File = PROGRAM_TEMPORARY; 1173ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].DstReg.Index = 0; 1183ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].SrcReg[0].File = PROGRAM_INPUT; 1193ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].SrcReg[0].Index = FRAG_ATTRIB_TEX0; 1203ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].TexSrcUnit = 0; 1213ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].TexSrcTarget = TEXTURE_2D_INDEX; 1223ece9ace540447c4f0d340a6f9f27980b54f83fbBrian ic++; 1233ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1243ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* SWZ tmp0.x, tmp0.x, 1111; # tmp0.x = 1.0 */ 1253ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].Opcode = OPCODE_SWZ; 1263ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].DstReg.File = PROGRAM_TEMPORARY; 1273ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].DstReg.Index = 0; 1283ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].DstReg.WriteMask = WRITEMASK_X; 1293ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].SrcReg[0].File = PROGRAM_TEMPORARY; 1303ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].SrcReg[0].Index = 0; 1313ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].SrcReg[0].Swizzle 1323ece9ace540447c4f0d340a6f9f27980b54f83fbBrian = MAKE_SWIZZLE4(SWIZZLE_ONE, SWIZZLE_ONE, SWIZZLE_ONE, SWIZZLE_ONE ); 1333ece9ace540447c4f0d340a6f9f27980b54f83fbBrian ic++; 1343ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1353ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* SUB tmp0, tmp0.wwww, tmp0.xxxx; # tmp0.w -= 1 */ 1363ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].Opcode = OPCODE_SUB; 1373ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].DstReg.File = PROGRAM_TEMPORARY; 1383ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].DstReg.Index = 0; 1393ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].SrcReg[0].File = PROGRAM_TEMPORARY; 1403ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].SrcReg[0].Index = 0; 1413ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].SrcReg[0].Swizzle = SWIZZLE_WWWW; 1423ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].SrcReg[1].File = PROGRAM_TEMPORARY; 1433ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].SrcReg[1].Index = 0; 1443ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].SrcReg[1].Swizzle = SWIZZLE_XXXX; /* 1.0 */ 1453ece9ace540447c4f0d340a6f9f27980b54f83fbBrian ic++; 1463ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1473ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* KIL if tmp0 < 0 */ 1483ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].Opcode = OPCODE_KIL; 1493ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].SrcReg[0].File = PROGRAM_TEMPORARY; 1503ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].SrcReg[0].Index = 0; 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; 1603ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1613ece9ace540447c4f0d340a6f9f27980b54f83fbBrian stfp = (struct st_fragment_program *) p; 1623ece9ace540447c4f0d340a6f9f27980b54f83fbBrian stfp->Base.UsesKill = GL_TRUE; 1633ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st_translate_fragment_program(ctx->st, stfp, NULL); 1643ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1653ece9ace540447c4f0d340a6f9f27980b54f83fbBrian return stfp; 1663ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 1673ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1683ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1693ece9ace540447c4f0d340a6f9f27980b54f83fbBrian/** 1703ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Combine basic bitmap fragment program with the user-defined program. 1713ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 1723ece9ace540447c4f0d340a6f9f27980b54f83fbBrianstatic struct st_fragment_program * 1733ece9ace540447c4f0d340a6f9f27980b54f83fbBriancombined_bitmap_fragment_program(GLcontext *ctx) 1743ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 1753ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct st_context *st = ctx->st; 1763ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct st_fragment_program *stfp; 1773ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1783ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (!st->bitmap.program) { 1793ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* create the basic bitmap fragment program */ 1803ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.program = make_bitmap_fragment_program(ctx); 1813ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 1823ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1833ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (st->bitmap.user_prog_sn == st->fp->serialNo) { 1843ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* re-use */ 1853ece9ace540447c4f0d340a6f9f27980b54f83fbBrian stfp = st->bitmap.combined_prog; 1863ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 1873ece9ace540447c4f0d340a6f9f27980b54f83fbBrian else { 1883ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* Concatenate the bitmap program with the current user-defined program. 1893ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 1903ece9ace540447c4f0d340a6f9f27980b54f83fbBrian stfp = (struct st_fragment_program *) 1913ece9ace540447c4f0d340a6f9f27980b54f83fbBrian _mesa_combine_programs(ctx, 1923ece9ace540447c4f0d340a6f9f27980b54f83fbBrian &st->bitmap.program->Base.Base, 1933ece9ace540447c4f0d340a6f9f27980b54f83fbBrian &st->fp->Base.Base); 1943ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1953ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#if 0 1963ece9ace540447c4f0d340a6f9f27980b54f83fbBrian { 1973ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct gl_program *p = &stfp->Base.Base; 1983ece9ace540447c4f0d340a6f9f27980b54f83fbBrian printf("Combined bitmap program:\n"); 1993ece9ace540447c4f0d340a6f9f27980b54f83fbBrian _mesa_print_program(p); 2003ece9ace540447c4f0d340a6f9f27980b54f83fbBrian printf("InputsRead: 0x%x\n", p->InputsRead); 2013ece9ace540447c4f0d340a6f9f27980b54f83fbBrian printf("OutputsWritten: 0x%x\n", p->OutputsWritten); 2023ece9ace540447c4f0d340a6f9f27980b54f83fbBrian _mesa_print_parameter_list(p->Parameters); 2033ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2043ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#endif 2053ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2063ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* translate to TGSI tokens */ 2073ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st_translate_fragment_program(st, stfp, NULL); 2083ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2093ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* save new program, update serial numbers */ 2103ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.user_prog_sn = st->fp->serialNo; 2113ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.combined_prog = stfp; 2123ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2133ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2143ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* Ideally we'd have updated the pipe constants during the normal 2153ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * st/atom mechanism. But we can't since this is specific to glBitmap. 2163ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 2173ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st_upload_constants(st, stfp->Base.Base.Parameters, PIPE_SHADER_FRAGMENT); 2183ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2193ece9ace540447c4f0d340a6f9f27980b54f83fbBrian return stfp; 2203ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 2213ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2223ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2233ece9ace540447c4f0d340a6f9f27980b54f83fbBrian/** 2243ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Create a texture which represents a bitmap image. 2253ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 2263ece9ace540447c4f0d340a6f9f27980b54f83fbBrianstatic struct pipe_texture * 2273ece9ace540447c4f0d340a6f9f27980b54f83fbBrianmake_bitmap_texture(GLcontext *ctx, GLsizei width, GLsizei height, 2283ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const struct gl_pixelstore_attrib *unpack, 2293ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const GLubyte *bitmap) 2303ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 2313ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_context *pipe = ctx->st->pipe; 2323ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_screen *screen = pipe->screen; 2333ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_surface *surface; 2343ece9ace540447c4f0d340a6f9f27980b54f83fbBrian uint format = 0, cpp, comp; 2353ece9ace540447c4f0d340a6f9f27980b54f83fbBrian ubyte *dest; 2363ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_texture *pt; 2373ece9ace540447c4f0d340a6f9f27980b54f83fbBrian int row, col; 2383ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2393ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* find a texture format we know */ 2403ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (screen->is_format_supported( screen, PIPE_FORMAT_U_I8, PIPE_TEXTURE )) { 2413ece9ace540447c4f0d340a6f9f27980b54f83fbBrian format = PIPE_FORMAT_U_I8; 2423ece9ace540447c4f0d340a6f9f27980b54f83fbBrian cpp = 1; 2433ece9ace540447c4f0d340a6f9f27980b54f83fbBrian comp = 0; 2443ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2453ece9ace540447c4f0d340a6f9f27980b54f83fbBrian else if (screen->is_format_supported( screen, PIPE_FORMAT_A8R8G8B8_UNORM, PIPE_TEXTURE )) { 2463ece9ace540447c4f0d340a6f9f27980b54f83fbBrian format = PIPE_FORMAT_A8R8G8B8_UNORM; 2473ece9ace540447c4f0d340a6f9f27980b54f83fbBrian cpp = 4; 2483ece9ace540447c4f0d340a6f9f27980b54f83fbBrian comp = 3; /* alpha channel */ /*XXX little-endian dependency */ 2493ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2503ece9ace540447c4f0d340a6f9f27980b54f83fbBrian else { 2513ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* XXX support more formats */ 2523ece9ace540447c4f0d340a6f9f27980b54f83fbBrian assert( 0 ); 2533ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2543ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 255f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul /* PBO source... */ 256a39091bc5b68e4d4f5302f1d3f1a138798f54b77Brian bitmap = _mesa_map_bitmap_pbo(ctx, unpack, bitmap); 257f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul if (!bitmap) { 258f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul return NULL; 259f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul } 260f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul 2613ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /** 262f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul * Create texture to hold bitmap pattern. 2633ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 2643ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pt = st_texture_create(ctx->st, PIPE_TEXTURE_2D, format, 0, width, height, 2653ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1, 0); 266f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul if (!pt) { 267f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul _mesa_unmap_bitmap_pbo(ctx, unpack); 2683ece9ace540447c4f0d340a6f9f27980b54f83fbBrian return NULL; 2693ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2703ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2713ece9ace540447c4f0d340a6f9f27980b54f83fbBrian surface = screen->get_tex_surface(screen, pt, 0, 0, 0); 2723ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2733ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* map texture surface */ 2743ece9ace540447c4f0d340a6f9f27980b54f83fbBrian dest = pipe_surface_map(surface); 2753ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2763ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* Put image into texture surface. 2773ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Note that the image is actually going to be upside down in 2783ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * the texture. We deal with that with texcoords. 2793ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 2803ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2813ece9ace540447c4f0d340a6f9f27980b54f83fbBrian for (row = 0; row < height; row++) { 2823ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const GLubyte *src = (const GLubyte *) _mesa_image_address2d(unpack, 2833ece9ace540447c4f0d340a6f9f27980b54f83fbBrian bitmap, width, height, GL_COLOR_INDEX, GL_BITMAP, row, 0); 2843ece9ace540447c4f0d340a6f9f27980b54f83fbBrian ubyte *destRow = dest + row * surface->pitch * cpp; 2853ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2863ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (unpack->LsbFirst) { 2873ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* Lsb first */ 2883ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLubyte mask = 1U << (unpack->SkipPixels & 0x7); 2893ece9ace540447c4f0d340a6f9f27980b54f83fbBrian for (col = 0; col < width; col++) { 2903ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2913ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* set texel to 255 if bit is set */ 2923ece9ace540447c4f0d340a6f9f27980b54f83fbBrian destRow[comp] = (*src & mask) ? 255 : 0; 2933ece9ace540447c4f0d340a6f9f27980b54f83fbBrian destRow += cpp; 2943ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2953ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (mask == 128U) { 2963ece9ace540447c4f0d340a6f9f27980b54f83fbBrian src++; 2973ece9ace540447c4f0d340a6f9f27980b54f83fbBrian mask = 1U; 2983ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2993ece9ace540447c4f0d340a6f9f27980b54f83fbBrian else { 3003ece9ace540447c4f0d340a6f9f27980b54f83fbBrian mask = mask << 1; 3013ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 3023ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 3033ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3043ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* get ready for next row */ 3053ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (mask != 1) 3063ece9ace540447c4f0d340a6f9f27980b54f83fbBrian src++; 3073ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 3083ece9ace540447c4f0d340a6f9f27980b54f83fbBrian else { 3093ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* Msb first */ 3103ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLubyte mask = 128U >> (unpack->SkipPixels & 0x7); 3113ece9ace540447c4f0d340a6f9f27980b54f83fbBrian for (col = 0; col < width; col++) { 3123ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3133ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* set texel to 255 if bit is set */ 3143ece9ace540447c4f0d340a6f9f27980b54f83fbBrian destRow[comp] =(*src & mask) ? 255 : 0; 3153ece9ace540447c4f0d340a6f9f27980b54f83fbBrian destRow += cpp; 3163ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3173ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (mask == 1U) { 3183ece9ace540447c4f0d340a6f9f27980b54f83fbBrian src++; 3193ece9ace540447c4f0d340a6f9f27980b54f83fbBrian mask = 128U; 3203ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 3213ece9ace540447c4f0d340a6f9f27980b54f83fbBrian else { 3223ece9ace540447c4f0d340a6f9f27980b54f83fbBrian mask = mask >> 1; 3233ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 3243ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 3253ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3263ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* get ready for next row */ 3273ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (mask != 128) 3283ece9ace540447c4f0d340a6f9f27980b54f83fbBrian src++; 3293ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 3303ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3313ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } /* row */ 3323ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 333f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul _mesa_unmap_bitmap_pbo(ctx, unpack); 334f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul 3353ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* Release surface */ 3363ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pipe_surface_unmap(surface); 3373ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pipe_surface_reference(&surface, NULL); 3383ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pipe->texture_update(pipe, pt, 0, 0x1); 3393ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3403ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pt->format = format; 3413ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3423ece9ace540447c4f0d340a6f9f27980b54f83fbBrian return pt; 3433ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 3443ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3453ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3463ece9ace540447c4f0d340a6f9f27980b54f83fbBrianstatic void 3473ece9ace540447c4f0d340a6f9f27980b54f83fbBriansetup_bitmap_vertex_data(struct st_context *st, 3483ece9ace540447c4f0d340a6f9f27980b54f83fbBrian int x, int y, int width, int height, 3493ece9ace540447c4f0d340a6f9f27980b54f83fbBrian float z, const float color[4]) 3503ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 3513ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_context *pipe = st->pipe; 3523ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const struct gl_framebuffer *fb = st->ctx->DrawBuffer; 353e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const GLfloat fb_width = fb->Width; 354e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const GLfloat fb_height = fb->Height; 3553ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const GLfloat x0 = x; 3563ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const GLfloat x1 = x + width; 357e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const GLfloat y0 = y; 358e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const GLfloat y1 = y + height; 3593ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const GLfloat bias = st->bitmap_texcoord_bias; 3603ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const GLfloat xBias = bias / (x1-x0); 3613ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const GLfloat yBias = bias / (y1-y0); 3623ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const GLfloat sLeft = 0.0 + xBias, sRight = 1.0 + xBias; 363e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const GLfloat tTop = yBias, tBot = 1.0 - tTop - yBias; 364e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const GLfloat clip_x0 = x0 / fb_width * 2.0 - 1.0; 365e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const GLfloat clip_y0 = y0 / fb_height * 2.0 - 1.0; 366e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const GLfloat clip_x1 = x1 / fb_width * 2.0 - 1.0; 367e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const GLfloat clip_y1 = y1 / fb_height * 2.0 - 1.0; 3683ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLuint i; 3693ece9ace540447c4f0d340a6f9f27980b54f83fbBrian void *buf; 3703ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3713ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (!st->bitmap.vbuf) { 3723ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vbuf = pipe->winsys->buffer_create(pipe->winsys, 32, 3733ece9ace540447c4f0d340a6f9f27980b54f83fbBrian PIPE_BUFFER_USAGE_VERTEX, 3743ece9ace540447c4f0d340a6f9f27980b54f83fbBrian sizeof(st->bitmap.vertices)); 3753ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 3763ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 377e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian /* Positions are in clip coords since we need to do clipping in case 378e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian * the bitmap quad goes beyond the window bounds. 379e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian */ 380e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[0][0][0] = clip_x0; 381e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[0][0][1] = clip_y0; 3823ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[0][2][0] = sLeft; 3833ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[0][2][1] = tTop; 3843ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 385e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[1][0][0] = clip_x1; 386e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[1][0][1] = clip_y0; 3873ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[1][2][0] = sRight; 3883ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[1][2][1] = tTop; 3893ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 390e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[2][0][0] = clip_x1; 391e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[2][0][1] = clip_y1; 3923ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[2][2][0] = sRight; 3933ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[2][2][1] = tBot; 3943ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 395e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[3][0][0] = clip_x0; 396e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[3][0][1] = clip_y1; 3973ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[3][2][0] = sLeft; 3983ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[3][2][1] = tBot; 3993ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4003ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* same for all verts: */ 4013ece9ace540447c4f0d340a6f9f27980b54f83fbBrian for (i = 0; i < 4; i++) { 4023ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][0][2] = z; 4033ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][0][3] = 1.0; 4043ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][1][0] = color[0]; 4053ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][1][1] = color[1]; 4063ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][1][2] = color[2]; 4073ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][1][3] = color[3]; 4083ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][2][2] = 0.0; /*R*/ 4093ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][2][3] = 1.0; /*Q*/ 4103ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 4113ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4123ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* put vertex data into vbuf */ 4133ece9ace540447c4f0d340a6f9f27980b54f83fbBrian buf = pipe->winsys->buffer_map(pipe->winsys, st->bitmap.vbuf, 4143ece9ace540447c4f0d340a6f9f27980b54f83fbBrian PIPE_BUFFER_USAGE_CPU_WRITE); 4153ece9ace540447c4f0d340a6f9f27980b54f83fbBrian memcpy(buf, st->bitmap.vertices, sizeof(st->bitmap.vertices)); 4163ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pipe->winsys->buffer_unmap(pipe->winsys, st->bitmap.vbuf); 4173ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 4183ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4193ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4203ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4213ece9ace540447c4f0d340a6f9f27980b54f83fbBrian/** 4223ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Render a glBitmap by drawing a textured quad 4233ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 4243ece9ace540447c4f0d340a6f9f27980b54f83fbBrianstatic void 4253ece9ace540447c4f0d340a6f9f27980b54f83fbBriandraw_bitmap_quad(GLcontext *ctx, GLint x, GLint y, GLfloat z, 4263ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLsizei width, GLsizei height, 427c62b197b528293abb56b099503344e3cdd7d6c40Brian struct pipe_texture *pt) 4283ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 4293ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct st_context *st = ctx->st; 4303ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_context *pipe = ctx->st->pipe; 4313ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct cso_context *cso = ctx->st->cso_context; 432c62b197b528293abb56b099503344e3cdd7d6c40Brian struct st_fragment_program *stfp; 4333ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLuint maxSize; 4343ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 435c62b197b528293abb56b099503344e3cdd7d6c40Brian stfp = combined_bitmap_fragment_program(ctx); 436c62b197b528293abb56b099503344e3cdd7d6c40Brian 4373ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* limit checks */ 438c62b197b528293abb56b099503344e3cdd7d6c40Brian /* XXX if the bitmap is larger than the max texture size, break 4393ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * it up into chunks. 4403ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 4413ece9ace540447c4f0d340a6f9f27980b54f83fbBrian maxSize = 1 << (pipe->screen->get_param(pipe->screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS) - 1); 4423ece9ace540447c4f0d340a6f9f27980b54f83fbBrian assert(width <= maxSize); 4433ece9ace540447c4f0d340a6f9f27980b54f83fbBrian assert(height <= maxSize); 4443ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4453ece9ace540447c4f0d340a6f9f27980b54f83fbBrian cso_save_rasterizer(cso); 446d246274b9c48c01b61490f0a76c22aebb8e64e1eBrian Paul cso_save_samplers(cso); 447e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian cso_save_viewport(cso); 4483ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4493ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* rasterizer state: just scissor */ 450e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.rasterizer.scissor = ctx->Scissor.Enabled; 451e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian cso_set_rasterizer(cso, &st->bitmap.rasterizer); 4523ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4533ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* fragment shader state: TEX lookup program */ 4543ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pipe->bind_fs_state(pipe, stfp->driver_shader); 4553ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4563ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* vertex shader state: position + texcoord pass-through */ 4573ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pipe->bind_vs_state(pipe, st->bitmap.vs); 4583ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4593ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* sampler / texture state */ 460e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian cso_single_sampler(cso, 0, &st->bitmap.sampler); 461e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian cso_single_sampler_done(cso); 462e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian pipe->set_sampler_textures(pipe, 1, &pt); 463e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian 464e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian /* viewport state: viewport matching window dims */ 4653ece9ace540447c4f0d340a6f9f27980b54f83fbBrian { 466e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const struct gl_framebuffer *fb = st->ctx->DrawBuffer; 467e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const GLboolean invert = (st_fb_orientation(fb) == Y_0_TOP); 468e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const float width = fb->Width; 469e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const float height = fb->Height; 470e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian struct pipe_viewport_state vp; 471e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian vp.scale[0] = 0.5 * width; 472e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian vp.scale[1] = height * (invert ? -0.5 : 0.5); 473e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian vp.scale[2] = 1.0; 474e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian vp.scale[3] = 1.0; 475e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian vp.translate[0] = 0.5 * width; 476e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian vp.translate[1] = 0.5 * height; 477e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian vp.translate[2] = 0.0; 478e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian vp.translate[3] = 0.0; 479e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian cso_set_viewport(cso, &vp); 4803ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 4813ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4823ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* draw textured quad */ 4833ece9ace540447c4f0d340a6f9f27980b54f83fbBrian setup_bitmap_vertex_data(st, x, y, width, height, 4843ece9ace540447c4f0d340a6f9f27980b54f83fbBrian ctx->Current.RasterPos[2], 4853ece9ace540447c4f0d340a6f9f27980b54f83fbBrian ctx->Current.RasterColor); 4863ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4873ece9ace540447c4f0d340a6f9f27980b54f83fbBrian util_draw_vertex_buffer(pipe, st->bitmap.vbuf, 4883ece9ace540447c4f0d340a6f9f27980b54f83fbBrian PIPE_PRIM_TRIANGLE_FAN, 4893ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4, /* verts */ 4903ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3); /* attribs/vert */ 4913ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4923ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4933ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* restore state */ 4943ece9ace540447c4f0d340a6f9f27980b54f83fbBrian cso_restore_rasterizer(cso); 4953ece9ace540447c4f0d340a6f9f27980b54f83fbBrian cso_restore_samplers(cso); 496e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian cso_restore_viewport(cso); 4973ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* shaders don't go through cso yet */ 4983ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pipe->bind_fs_state(pipe, st->fp->driver_shader); 4993ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pipe->bind_vs_state(pipe, st->vp->driver_shader); 5003ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pipe->set_sampler_textures(pipe, ctx->st->state.num_textures, 5013ece9ace540447c4f0d340a6f9f27980b54f83fbBrian ctx->st->state.sampler_texture); 5023ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 5033ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 5043ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 505737e34aee598f32f8ff078ba823ed149b282ebc8Brianstatic void 506737e34aee598f32f8ff078ba823ed149b282ebc8Brianreset_cache(struct st_context *st) 507737e34aee598f32f8ff078ba823ed149b282ebc8Brian{ 508737e34aee598f32f8ff078ba823ed149b282ebc8Brian memset(st->bitmap.cache->buffer, 0, sizeof(st->bitmap.cache->buffer)); 509737e34aee598f32f8ff078ba823ed149b282ebc8Brian st->bitmap.cache->empty = GL_TRUE; 510737e34aee598f32f8ff078ba823ed149b282ebc8Brian 511737e34aee598f32f8ff078ba823ed149b282ebc8Brian st->bitmap.cache->xmin = 1000000; 512737e34aee598f32f8ff078ba823ed149b282ebc8Brian st->bitmap.cache->xmax = -1000000; 513737e34aee598f32f8ff078ba823ed149b282ebc8Brian st->bitmap.cache->ymin = 1000000; 514737e34aee598f32f8ff078ba823ed149b282ebc8Brian st->bitmap.cache->ymax = -1000000; 515737e34aee598f32f8ff078ba823ed149b282ebc8Brian} 516737e34aee598f32f8ff078ba823ed149b282ebc8Brian 5173ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 5183ece9ace540447c4f0d340a6f9f27980b54f83fbBrianstatic void 519c62b197b528293abb56b099503344e3cdd7d6c40Brianinit_bitmap_cache(struct st_context *st) 520c62b197b528293abb56b099503344e3cdd7d6c40Brian{ 521c62b197b528293abb56b099503344e3cdd7d6c40Brian struct pipe_context *pipe = st->pipe; 522c62b197b528293abb56b099503344e3cdd7d6c40Brian struct pipe_screen *screen = pipe->screen; 523c62b197b528293abb56b099503344e3cdd7d6c40Brian enum pipe_format format; 524c62b197b528293abb56b099503344e3cdd7d6c40Brian 525c62b197b528293abb56b099503344e3cdd7d6c40Brian st->bitmap.cache = CALLOC_STRUCT(bitmap_cache); 526c62b197b528293abb56b099503344e3cdd7d6c40Brian if (!st->bitmap.cache) 527c62b197b528293abb56b099503344e3cdd7d6c40Brian return; 528c62b197b528293abb56b099503344e3cdd7d6c40Brian 529c62b197b528293abb56b099503344e3cdd7d6c40Brian /* find a usable texture format */ 530c62b197b528293abb56b099503344e3cdd7d6c40Brian if (screen->is_format_supported(screen, PIPE_FORMAT_U_I8, PIPE_TEXTURE)) { 531c62b197b528293abb56b099503344e3cdd7d6c40Brian format = PIPE_FORMAT_U_I8; 532c62b197b528293abb56b099503344e3cdd7d6c40Brian } 533c62b197b528293abb56b099503344e3cdd7d6c40Brian else { 534c62b197b528293abb56b099503344e3cdd7d6c40Brian /* XXX support more formats */ 535c62b197b528293abb56b099503344e3cdd7d6c40Brian assert(0); 536c62b197b528293abb56b099503344e3cdd7d6c40Brian } 537c62b197b528293abb56b099503344e3cdd7d6c40Brian 538c62b197b528293abb56b099503344e3cdd7d6c40Brian st->bitmap.cache->texture 539c62b197b528293abb56b099503344e3cdd7d6c40Brian = st_texture_create(st, PIPE_TEXTURE_2D, format, 0, 540c62b197b528293abb56b099503344e3cdd7d6c40Brian BITMAP_CACHE_WIDTH, BITMAP_CACHE_HEIGHT, 1, 0); 541c62b197b528293abb56b099503344e3cdd7d6c40Brian if (!st->bitmap.cache->texture) { 542c62b197b528293abb56b099503344e3cdd7d6c40Brian FREE(st->bitmap.cache); 543c62b197b528293abb56b099503344e3cdd7d6c40Brian st->bitmap.cache = NULL; 544c62b197b528293abb56b099503344e3cdd7d6c40Brian return; 545c62b197b528293abb56b099503344e3cdd7d6c40Brian } 546c62b197b528293abb56b099503344e3cdd7d6c40Brian 547737e34aee598f32f8ff078ba823ed149b282ebc8Brian reset_cache(st); 548c62b197b528293abb56b099503344e3cdd7d6c40Brian} 549c62b197b528293abb56b099503344e3cdd7d6c40Brian 550c62b197b528293abb56b099503344e3cdd7d6c40Brian 551c62b197b528293abb56b099503344e3cdd7d6c40Brian/** 552c62b197b528293abb56b099503344e3cdd7d6c40Brian * If there's anything in the bitmap cache, draw/flush it now. 553c62b197b528293abb56b099503344e3cdd7d6c40Brian */ 554c62b197b528293abb56b099503344e3cdd7d6c40Brianvoid 555c62b197b528293abb56b099503344e3cdd7d6c40Brianst_flush_bitmap_cache(struct st_context *st) 556c62b197b528293abb56b099503344e3cdd7d6c40Brian{ 557c62b197b528293abb56b099503344e3cdd7d6c40Brian if (!st->bitmap.cache->empty) { 558737e34aee598f32f8ff078ba823ed149b282ebc8Brian struct bitmap_cache *cache = st->bitmap.cache; 559c62b197b528293abb56b099503344e3cdd7d6c40Brian struct pipe_context *pipe = st->pipe; 560c62b197b528293abb56b099503344e3cdd7d6c40Brian struct pipe_screen *screen = pipe->screen; 561c62b197b528293abb56b099503344e3cdd7d6c40Brian struct pipe_surface *surf; 562c62b197b528293abb56b099503344e3cdd7d6c40Brian void *dest; 563c62b197b528293abb56b099503344e3cdd7d6c40Brian 564737e34aee598f32f8ff078ba823ed149b282ebc8Brian assert(cache->xmin <= cache->xmax); 565737e34aee598f32f8ff078ba823ed149b282ebc8Brian /* 566737e34aee598f32f8ff078ba823ed149b282ebc8Brian printf("flush size %d x %d at %d, %d\n", 567737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->xmax - cache->xmin, 568737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->ymax - cache->ymin, 569737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->xpos, cache->ypos); 570737e34aee598f32f8ff078ba823ed149b282ebc8Brian */ 571737e34aee598f32f8ff078ba823ed149b282ebc8Brian 572c62b197b528293abb56b099503344e3cdd7d6c40Brian /* update the texture map image */ 573737e34aee598f32f8ff078ba823ed149b282ebc8Brian surf = screen->get_tex_surface(screen, cache->texture, 0, 0, 0); 574c62b197b528293abb56b099503344e3cdd7d6c40Brian dest = pipe_surface_map(surf); 575737e34aee598f32f8ff078ba823ed149b282ebc8Brian memcpy(dest, cache->buffer, sizeof(cache->buffer)); 576c62b197b528293abb56b099503344e3cdd7d6c40Brian pipe_surface_unmap(surf); 577c62b197b528293abb56b099503344e3cdd7d6c40Brian pipe_surface_reference(&surf, NULL); 578c62b197b528293abb56b099503344e3cdd7d6c40Brian 579737e34aee598f32f8ff078ba823ed149b282ebc8Brian pipe->texture_update(pipe, cache->texture, 0, 0x1); 580c62b197b528293abb56b099503344e3cdd7d6c40Brian 581c62b197b528293abb56b099503344e3cdd7d6c40Brian draw_bitmap_quad(st->ctx, 582737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->xpos, 583737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->ypos, 584c62b197b528293abb56b099503344e3cdd7d6c40Brian st->ctx->Current.RasterPos[2], 585c62b197b528293abb56b099503344e3cdd7d6c40Brian BITMAP_CACHE_WIDTH, BITMAP_CACHE_HEIGHT, 586737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->texture); 587c62b197b528293abb56b099503344e3cdd7d6c40Brian 588737e34aee598f32f8ff078ba823ed149b282ebc8Brian reset_cache(st); 589c62b197b528293abb56b099503344e3cdd7d6c40Brian } 590c62b197b528293abb56b099503344e3cdd7d6c40Brian} 591c62b197b528293abb56b099503344e3cdd7d6c40Brian 592c62b197b528293abb56b099503344e3cdd7d6c40Brian 593c62b197b528293abb56b099503344e3cdd7d6c40Brian/** 594c62b197b528293abb56b099503344e3cdd7d6c40Brian * Try to accumulate this glBitmap call in the bitmap cache. 595c62b197b528293abb56b099503344e3cdd7d6c40Brian * \return GL_TRUE for success, GL_FALSE if bitmap is too large, etc. 596c62b197b528293abb56b099503344e3cdd7d6c40Brian */ 597c62b197b528293abb56b099503344e3cdd7d6c40Brianstatic GLboolean 598c62b197b528293abb56b099503344e3cdd7d6c40Brianaccum_bitmap(struct st_context *st, 599c62b197b528293abb56b099503344e3cdd7d6c40Brian GLint x, GLint y, GLsizei width, GLsizei height, 600c62b197b528293abb56b099503344e3cdd7d6c40Brian const struct gl_pixelstore_attrib *unpack, 601c62b197b528293abb56b099503344e3cdd7d6c40Brian const GLubyte *bitmap ) 602c62b197b528293abb56b099503344e3cdd7d6c40Brian{ 603737e34aee598f32f8ff078ba823ed149b282ebc8Brian struct bitmap_cache *cache = st->bitmap.cache; 604c62b197b528293abb56b099503344e3cdd7d6c40Brian int row, col; 605c62b197b528293abb56b099503344e3cdd7d6c40Brian int px = -999, py; 606c62b197b528293abb56b099503344e3cdd7d6c40Brian 607c62b197b528293abb56b099503344e3cdd7d6c40Brian if (width > BITMAP_CACHE_WIDTH || 608c62b197b528293abb56b099503344e3cdd7d6c40Brian height > BITMAP_CACHE_HEIGHT) 609c62b197b528293abb56b099503344e3cdd7d6c40Brian return GL_FALSE; /* too big to cache */ 610c62b197b528293abb56b099503344e3cdd7d6c40Brian 611737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (!cache->empty) { 612737e34aee598f32f8ff078ba823ed149b282ebc8Brian px = x - cache->xpos; /* pos in buffer */ 613737e34aee598f32f8ff078ba823ed149b282ebc8Brian py = y - cache->ypos; 614c62b197b528293abb56b099503344e3cdd7d6c40Brian if (px < 0 || px + width > BITMAP_CACHE_WIDTH || 615c62b197b528293abb56b099503344e3cdd7d6c40Brian py < 0 || py + height > BITMAP_CACHE_HEIGHT) { 616c62b197b528293abb56b099503344e3cdd7d6c40Brian /* This bitmap would extend beyond cache bounds, 617c62b197b528293abb56b099503344e3cdd7d6c40Brian * so flush and continue. 618c62b197b528293abb56b099503344e3cdd7d6c40Brian */ 619c62b197b528293abb56b099503344e3cdd7d6c40Brian st_flush_bitmap_cache(st); 620c62b197b528293abb56b099503344e3cdd7d6c40Brian } 621c62b197b528293abb56b099503344e3cdd7d6c40Brian } 622c62b197b528293abb56b099503344e3cdd7d6c40Brian 623737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (cache->empty) { 624c62b197b528293abb56b099503344e3cdd7d6c40Brian /* Initialize. Center bitmap vertically in the buffer. */ 625c62b197b528293abb56b099503344e3cdd7d6c40Brian px = 0; 626c62b197b528293abb56b099503344e3cdd7d6c40Brian py = (BITMAP_CACHE_HEIGHT - height) / 2; 627737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->xpos = x; 628737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->ypos = y - py; 629737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->empty = GL_FALSE; 630c62b197b528293abb56b099503344e3cdd7d6c40Brian } 631c62b197b528293abb56b099503344e3cdd7d6c40Brian 632c62b197b528293abb56b099503344e3cdd7d6c40Brian assert(px != -999); 633c62b197b528293abb56b099503344e3cdd7d6c40Brian 634737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (x < cache->xmin) 635737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->xmin = x; 636737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (y < cache->ymin) 637737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->ymin = y; 638737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (x + width > cache->xmax) 639737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->xmax = x + width; 640737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (y + height > cache->ymax) 641737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->ymax = y + height; 642737e34aee598f32f8ff078ba823ed149b282ebc8Brian 643c62b197b528293abb56b099503344e3cdd7d6c40Brian /* XXX try to combine this code with code in make_bitmap_texture() */ 644c62b197b528293abb56b099503344e3cdd7d6c40Brian#define SET_PIXEL(COL, ROW) \ 645737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->buffer[py + (ROW)][px + (COL)] = 0xff; 646c62b197b528293abb56b099503344e3cdd7d6c40Brian 647c62b197b528293abb56b099503344e3cdd7d6c40Brian for (row = 0; row < height; row++) { 648c62b197b528293abb56b099503344e3cdd7d6c40Brian const GLubyte *src = (const GLubyte *) _mesa_image_address2d(unpack, 649c62b197b528293abb56b099503344e3cdd7d6c40Brian bitmap, width, height, GL_COLOR_INDEX, GL_BITMAP, row, 0); 650c62b197b528293abb56b099503344e3cdd7d6c40Brian 651c62b197b528293abb56b099503344e3cdd7d6c40Brian if (unpack->LsbFirst) { 652c62b197b528293abb56b099503344e3cdd7d6c40Brian /* Lsb first */ 653c62b197b528293abb56b099503344e3cdd7d6c40Brian GLubyte mask = 1U << (unpack->SkipPixels & 0x7); 654c62b197b528293abb56b099503344e3cdd7d6c40Brian for (col = 0; col < width; col++) { 655c62b197b528293abb56b099503344e3cdd7d6c40Brian 656c62b197b528293abb56b099503344e3cdd7d6c40Brian if (*src & mask) { 657c62b197b528293abb56b099503344e3cdd7d6c40Brian SET_PIXEL(col, row); 658c62b197b528293abb56b099503344e3cdd7d6c40Brian } 659c62b197b528293abb56b099503344e3cdd7d6c40Brian 660c62b197b528293abb56b099503344e3cdd7d6c40Brian if (mask == 128U) { 661c62b197b528293abb56b099503344e3cdd7d6c40Brian src++; 662c62b197b528293abb56b099503344e3cdd7d6c40Brian mask = 1U; 663c62b197b528293abb56b099503344e3cdd7d6c40Brian } 664c62b197b528293abb56b099503344e3cdd7d6c40Brian else { 665c62b197b528293abb56b099503344e3cdd7d6c40Brian mask = mask << 1; 666c62b197b528293abb56b099503344e3cdd7d6c40Brian } 667c62b197b528293abb56b099503344e3cdd7d6c40Brian } 668c62b197b528293abb56b099503344e3cdd7d6c40Brian 669c62b197b528293abb56b099503344e3cdd7d6c40Brian /* get ready for next row */ 670c62b197b528293abb56b099503344e3cdd7d6c40Brian if (mask != 1) 671c62b197b528293abb56b099503344e3cdd7d6c40Brian src++; 672c62b197b528293abb56b099503344e3cdd7d6c40Brian } 673c62b197b528293abb56b099503344e3cdd7d6c40Brian else { 674c62b197b528293abb56b099503344e3cdd7d6c40Brian /* Msb first */ 675c62b197b528293abb56b099503344e3cdd7d6c40Brian GLubyte mask = 128U >> (unpack->SkipPixels & 0x7); 676c62b197b528293abb56b099503344e3cdd7d6c40Brian for (col = 0; col < width; col++) { 677c62b197b528293abb56b099503344e3cdd7d6c40Brian 678c62b197b528293abb56b099503344e3cdd7d6c40Brian if (*src & mask) { 679c62b197b528293abb56b099503344e3cdd7d6c40Brian SET_PIXEL(col, row); 680c62b197b528293abb56b099503344e3cdd7d6c40Brian } 681c62b197b528293abb56b099503344e3cdd7d6c40Brian 682c62b197b528293abb56b099503344e3cdd7d6c40Brian if (mask == 1U) { 683c62b197b528293abb56b099503344e3cdd7d6c40Brian src++; 684c62b197b528293abb56b099503344e3cdd7d6c40Brian mask = 128U; 685c62b197b528293abb56b099503344e3cdd7d6c40Brian } 686c62b197b528293abb56b099503344e3cdd7d6c40Brian else { 687c62b197b528293abb56b099503344e3cdd7d6c40Brian mask = mask >> 1; 688c62b197b528293abb56b099503344e3cdd7d6c40Brian } 689c62b197b528293abb56b099503344e3cdd7d6c40Brian } 690c62b197b528293abb56b099503344e3cdd7d6c40Brian 691c62b197b528293abb56b099503344e3cdd7d6c40Brian /* get ready for next row */ 692c62b197b528293abb56b099503344e3cdd7d6c40Brian if (mask != 128) 693c62b197b528293abb56b099503344e3cdd7d6c40Brian src++; 694c62b197b528293abb56b099503344e3cdd7d6c40Brian } 695c62b197b528293abb56b099503344e3cdd7d6c40Brian 696c62b197b528293abb56b099503344e3cdd7d6c40Brian } /* row */ 697c62b197b528293abb56b099503344e3cdd7d6c40Brian 698c62b197b528293abb56b099503344e3cdd7d6c40Brian return GL_TRUE; /* accumulated */ 699c62b197b528293abb56b099503344e3cdd7d6c40Brian} 700c62b197b528293abb56b099503344e3cdd7d6c40Brian 701c62b197b528293abb56b099503344e3cdd7d6c40Brian 702c62b197b528293abb56b099503344e3cdd7d6c40Brian 703c62b197b528293abb56b099503344e3cdd7d6c40Brian/** 704c62b197b528293abb56b099503344e3cdd7d6c40Brian * Called via ctx->Driver.Bitmap() 705c62b197b528293abb56b099503344e3cdd7d6c40Brian */ 706c62b197b528293abb56b099503344e3cdd7d6c40Brianstatic void 7073ece9ace540447c4f0d340a6f9f27980b54f83fbBrianst_Bitmap(GLcontext *ctx, GLint x, GLint y, GLsizei width, GLsizei height, 7083ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const struct gl_pixelstore_attrib *unpack, const GLubyte *bitmap ) 7093ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 7103ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct st_context *st = ctx->st; 7113ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_texture *pt; 7123ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 7131ecb2e4a7a5881d5a98679b421d78fd11c729ebcBrian Paul st_validate_state(st); 7141ecb2e4a7a5881d5a98679b421d78fd11c729ebcBrian Paul 7153ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (!st->bitmap.vs) { 7163ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* create pass-through vertex shader now */ 7173ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const uint semantic_names[] = { TGSI_SEMANTIC_POSITION, 7183ece9ace540447c4f0d340a6f9f27980b54f83fbBrian TGSI_SEMANTIC_COLOR, 7193ece9ace540447c4f0d340a6f9f27980b54f83fbBrian TGSI_SEMANTIC_GENERIC }; 7203ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const uint semantic_indexes[] = { 0, 0, 0 }; 7213ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vs = util_make_vertex_passthrough_shader(st->pipe, 3, 7223ece9ace540447c4f0d340a6f9f27980b54f83fbBrian semantic_names, 7236f8286163c79a8187c2912a9b673a6f11f4f60c6Brian semantic_indexes, 7246f8286163c79a8187c2912a9b673a6f11f4f60c6Brian &st->bitmap.vert_shader); 7253ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 7263ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 727c62b197b528293abb56b099503344e3cdd7d6c40Brian if (UseBitmapCache && accum_bitmap(st, x, y, width, height, unpack, bitmap)) 728c62b197b528293abb56b099503344e3cdd7d6c40Brian return; 7293ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 7303ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pt = make_bitmap_texture(ctx, width, height, unpack, bitmap); 7313ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (pt) { 7326f8286163c79a8187c2912a9b673a6f11f4f60c6Brian assert(pt->target == PIPE_TEXTURE_2D); 7333ece9ace540447c4f0d340a6f9f27980b54f83fbBrian draw_bitmap_quad(ctx, x, y, ctx->Current.RasterPos[2], 734c62b197b528293abb56b099503344e3cdd7d6c40Brian width, height, pt); 7353ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pipe_texture_reference(&pt, NULL); 7363ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 7373ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 7383ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 7393ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 740c62b197b528293abb56b099503344e3cdd7d6c40Brian/** Per-context init */ 741c62b197b528293abb56b099503344e3cdd7d6c40Brianvoid 742c62b197b528293abb56b099503344e3cdd7d6c40Brianst_init_bitmap_functions(struct dd_function_table *functions) 7433ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 7443ece9ace540447c4f0d340a6f9f27980b54f83fbBrian functions->Bitmap = st_Bitmap; 7453ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 7463ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 7473ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 748c62b197b528293abb56b099503344e3cdd7d6c40Brian/** Per-context init */ 749c62b197b528293abb56b099503344e3cdd7d6c40Brianvoid 750c62b197b528293abb56b099503344e3cdd7d6c40Brianst_init_bitmap(struct st_context *st) 751c62b197b528293abb56b099503344e3cdd7d6c40Brian{ 752e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian struct pipe_sampler_state *sampler = &st->bitmap.sampler; 753e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian 754e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian /* init sampler state once */ 755e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian memset(sampler, 0, sizeof(*sampler)); 756e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->wrap_s = PIPE_TEX_WRAP_CLAMP; 757e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->wrap_t = PIPE_TEX_WRAP_CLAMP; 758e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->wrap_r = PIPE_TEX_WRAP_CLAMP; 759e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->min_img_filter = PIPE_TEX_FILTER_NEAREST; 760e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->min_mip_filter = PIPE_TEX_MIPFILTER_NONE; 761e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->mag_img_filter = PIPE_TEX_FILTER_NEAREST; 762e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->normalized_coords = 1; 763e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian 764e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian /* init scissor state once */ 765e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian memset(&st->bitmap.rasterizer, 0, sizeof(st->bitmap.rasterizer)); 766e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian 767c62b197b528293abb56b099503344e3cdd7d6c40Brian init_bitmap_cache(st); 768c62b197b528293abb56b099503344e3cdd7d6c40Brian} 769c62b197b528293abb56b099503344e3cdd7d6c40Brian 770c62b197b528293abb56b099503344e3cdd7d6c40Brian 771c62b197b528293abb56b099503344e3cdd7d6c40Brian/** Per-context tear-down */ 7723ece9ace540447c4f0d340a6f9f27980b54f83fbBrianvoid 7733ece9ace540447c4f0d340a6f9f27980b54f83fbBrianst_destroy_bitmap(struct st_context *st) 7743ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 7753ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_context *pipe = st->pipe; 7763ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 77722a3d022542fed267d48b48a44e10226d55c8afdBrian Paul if (st->bitmap.combined_prog) { 77822a3d022542fed267d48b48a44e10226d55c8afdBrian Paul st_delete_program(st->ctx, &st->bitmap.combined_prog->Base.Base); 77922a3d022542fed267d48b48a44e10226d55c8afdBrian Paul } 78022a3d022542fed267d48b48a44e10226d55c8afdBrian Paul 78122a3d022542fed267d48b48a44e10226d55c8afdBrian Paul if (st->bitmap.program) { 78222a3d022542fed267d48b48a44e10226d55c8afdBrian Paul st_delete_program(st->ctx, &st->bitmap.program->Base.Base); 78322a3d022542fed267d48b48a44e10226d55c8afdBrian Paul } 7843ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 7853ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (st->bitmap.vs) { 7863ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pipe->delete_vs_state(pipe, st->bitmap.vs); 7873ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vs = NULL; 7883ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 789c62b197b528293abb56b099503344e3cdd7d6c40Brian 7903ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (st->bitmap.vbuf) { 7913ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pipe->winsys->buffer_destroy(pipe->winsys, st->bitmap.vbuf); 7923ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vbuf = NULL; 7933ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 7943ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 795c62b197b528293abb56b099503344e3cdd7d6c40Brian if (st->bitmap.cache) { 796c62b197b528293abb56b099503344e3cdd7d6c40Brian pipe_texture_release(&st->bitmap.cache->texture); 797c62b197b528293abb56b099503344e3cdd7d6c40Brian FREE(st->bitmap.cache); 798c62b197b528293abb56b099503344e3cdd7d6c40Brian st->bitmap.cache = NULL; 799c62b197b528293abb56b099503344e3cdd7d6c40Brian } 800c62b197b528293abb56b099503344e3cdd7d6c40Brian} 801