st_cb_bitmap.c revision ac09b0e0eb30f6691e35638f210c04ac0f867ea8
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 "util/p_tile.h" 543ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "util/u_draw_quad.h" 553ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "util/u_simple_shaders.h" 563ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "shader/prog_instruction.h" 573ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "cso_cache/cso_context.h" 583ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 593ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 603ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 613ece9ace540447c4f0d340a6f9f27980b54f83fbBrian/** 626b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * glBitmaps are drawn as textured quads. The user's bitmap pattern 636b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * is stored in a texture image. An alpha8 texture format is used. 646b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * The fragment shader samples a bit (texel) from the texture, then 656b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * discards the fragment if the bit is off. 666b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * 676b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * Note that we actually store the inverse image of the bitmap to 686b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * simplify the fragment program. An "on" bit gets stored as texel=0x0 696b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * and an "off" bit is stored as texel=0xff. Then we kill the 706b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * fragment if the negated texel value is less than zero. 716b0be38a6cfecd2babc7175b0877bed522ca9f72Brian */ 726b0be38a6cfecd2babc7175b0877bed522ca9f72Brian 736b0be38a6cfecd2babc7175b0877bed522ca9f72Brian 746b0be38a6cfecd2babc7175b0877bed522ca9f72Brian/** 75c62b197b528293abb56b099503344e3cdd7d6c40Brian * The bitmap cache attempts to accumulate multiple glBitmap calls in a 76c62b197b528293abb56b099503344e3cdd7d6c40Brian * buffer which is then rendered en mass upon a flush, state change, etc. 77c62b197b528293abb56b099503344e3cdd7d6c40Brian * A wide, short buffer is used to target the common case of a series 78c62b197b528293abb56b099503344e3cdd7d6c40Brian * of glBitmap calls being used to draw text. 79c62b197b528293abb56b099503344e3cdd7d6c40Brian */ 807292db2138001b48bba006cc08e9ff7091d16559Brianstatic GLboolean UseBitmapCache = GL_TRUE; 81c62b197b528293abb56b099503344e3cdd7d6c40Brian 82c62b197b528293abb56b099503344e3cdd7d6c40Brian 83c62b197b528293abb56b099503344e3cdd7d6c40Brian#define BITMAP_CACHE_WIDTH 512 84c62b197b528293abb56b099503344e3cdd7d6c40Brian#define BITMAP_CACHE_HEIGHT 32 85c62b197b528293abb56b099503344e3cdd7d6c40Brian 86c62b197b528293abb56b099503344e3cdd7d6c40Brianstruct bitmap_cache 87c62b197b528293abb56b099503344e3cdd7d6c40Brian{ 88c62b197b528293abb56b099503344e3cdd7d6c40Brian /** Window pos to render the cached image */ 89c62b197b528293abb56b099503344e3cdd7d6c40Brian GLint xpos, ypos; 90737e34aee598f32f8ff078ba823ed149b282ebc8Brian /** Bounds of region used in window coords */ 91737e34aee598f32f8ff078ba823ed149b282ebc8Brian GLint xmin, ymin, xmax, ymax; 92d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul 93c62b197b528293abb56b099503344e3cdd7d6c40Brian struct pipe_texture *texture; 94d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul struct pipe_surface *surf; 95d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul 96737e34aee598f32f8ff078ba823ed149b282ebc8Brian GLboolean empty; 97d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul 98737e34aee598f32f8ff078ba823ed149b282ebc8Brian /** An I8 texture image: */ 99d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul ubyte *buffer; 100c62b197b528293abb56b099503344e3cdd7d6c40Brian}; 101c62b197b528293abb56b099503344e3cdd7d6c40Brian 102c62b197b528293abb56b099503344e3cdd7d6c40Brian 103c62b197b528293abb56b099503344e3cdd7d6c40Brian 104c62b197b528293abb56b099503344e3cdd7d6c40Brian 105c62b197b528293abb56b099503344e3cdd7d6c40Brian/** 1063ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Make fragment program for glBitmap: 1073ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Sample the texture and kill the fragment if the bit is 0. 1083ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * This program will be combined with the user's fragment program. 1093ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 1103ece9ace540447c4f0d340a6f9f27980b54f83fbBrianstatic struct st_fragment_program * 11133f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paulmake_bitmap_fragment_program(GLcontext *ctx, GLuint samplerIndex) 1123ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 1133ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct st_fragment_program *stfp; 1143ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct gl_program *p; 1153ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLuint ic = 0; 1163ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1173ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p = ctx->Driver.NewProgram(ctx, GL_FRAGMENT_PROGRAM_ARB, 0); 1183ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (!p) 1193ece9ace540447c4f0d340a6f9f27980b54f83fbBrian return NULL; 1203ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1216b0be38a6cfecd2babc7175b0877bed522ca9f72Brian p->NumInstructions = 3; 1223ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1233ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions = _mesa_alloc_instructions(p->NumInstructions); 1243ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (!p->Instructions) { 1253ece9ace540447c4f0d340a6f9f27980b54f83fbBrian ctx->Driver.DeleteProgram(ctx, p); 1263ece9ace540447c4f0d340a6f9f27980b54f83fbBrian return NULL; 1273ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 1283ece9ace540447c4f0d340a6f9f27980b54f83fbBrian _mesa_init_instructions(p->Instructions, p->NumInstructions); 1293ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1303ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* TEX tmp0, fragment.texcoord[0], texture[0], 2D; */ 1313ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].Opcode = OPCODE_TEX; 1323ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].DstReg.File = PROGRAM_TEMPORARY; 1333ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].DstReg.Index = 0; 1343ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].SrcReg[0].File = PROGRAM_INPUT; 1353ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].SrcReg[0].Index = FRAG_ATTRIB_TEX0; 13633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul p->Instructions[ic].TexSrcUnit = samplerIndex; 1373ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].TexSrcTarget = TEXTURE_2D_INDEX; 1383ece9ace540447c4f0d340a6f9f27980b54f83fbBrian ic++; 1393ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1406b0be38a6cfecd2babc7175b0877bed522ca9f72Brian /* KIL if -tmp0 < 0 # texel=0 -> keep / texel=0 -> discard */ 1413ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].Opcode = OPCODE_KIL; 1423ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].SrcReg[0].File = PROGRAM_TEMPORARY; 1433ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].SrcReg[0].Index = 0; 1446b0be38a6cfecd2babc7175b0877bed522ca9f72Brian p->Instructions[ic].SrcReg[0].NegateBase = NEGATE_XYZW; 1453ece9ace540447c4f0d340a6f9f27980b54f83fbBrian ic++; 1463ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1473ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* END; */ 1483ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic++].Opcode = OPCODE_END; 1493ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1503ece9ace540447c4f0d340a6f9f27980b54f83fbBrian assert(ic == p->NumInstructions); 1513ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1523ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->InputsRead = FRAG_BIT_TEX0; 1533ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->OutputsWritten = 0x0; 15433f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul p->SamplersUsed = (1 << samplerIndex); 1553ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1563ece9ace540447c4f0d340a6f9f27980b54f83fbBrian stfp = (struct st_fragment_program *) p; 1573ece9ace540447c4f0d340a6f9f27980b54f83fbBrian stfp->Base.UsesKill = GL_TRUE; 1583ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st_translate_fragment_program(ctx->st, stfp, NULL); 1593ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1603ece9ace540447c4f0d340a6f9f27980b54f83fbBrian return stfp; 1613ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 1623ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1633ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 16433f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paulstatic int 16533f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paulfind_free_bit(uint bitfield) 16633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul{ 16733f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul int i; 16833f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul for (i = 0; i < 32; i++) { 16933f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul if ((bitfield & (1 << i)) == 0) { 17033f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul return i; 17133f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul } 17233f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul } 17333f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul return -1; 17433f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul} 17533f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul 17633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul 1773ece9ace540447c4f0d340a6f9f27980b54f83fbBrian/** 1783ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Combine basic bitmap fragment program with the user-defined program. 1793ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 1803ece9ace540447c4f0d340a6f9f27980b54f83fbBrianstatic struct st_fragment_program * 1813ece9ace540447c4f0d340a6f9f27980b54f83fbBriancombined_bitmap_fragment_program(GLcontext *ctx) 1823ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 1833ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct st_context *st = ctx->st; 18433f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul struct st_fragment_program *stfp = st->fp; 1853ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 18633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul if (!stfp->bitmap_program) { 18733f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul /* 18833f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul * Generate new program which is the user-defined program prefixed 18933f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul * with the bitmap sampler/kill instructions. 1903ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 19133f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul struct st_fragment_program *bitmap_prog; 19233f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul uint sampler; 1933ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 19433f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul sampler = find_free_bit(st->fp->Base.Base.SamplersUsed); 19533f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul bitmap_prog = make_bitmap_fragment_program(ctx, sampler); 19633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul 19733f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul stfp->bitmap_program = (struct st_fragment_program *) 19833f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul _mesa_combine_programs(ctx, 19933f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul &bitmap_prog->Base.Base, &stfp->Base.Base); 20033f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul stfp->bitmap_program->bitmap_sampler = sampler; 201ac09b0e0eb30f6691e35638f210c04ac0f867ea8Brian Paul 202ac09b0e0eb30f6691e35638f210c04ac0f867ea8Brian Paul /* done with this after combining */ 203ac09b0e0eb30f6691e35638f210c04ac0f867ea8Brian Paul st_reference_fragprog(st, &bitmap_prog, NULL); 204ac09b0e0eb30f6691e35638f210c04ac0f867ea8Brian Paul 2053ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#if 0 2063ece9ace540447c4f0d340a6f9f27980b54f83fbBrian { 20733f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul struct gl_program *p = &stfp->bitmap_program->Base.Base; 2083ece9ace540447c4f0d340a6f9f27980b54f83fbBrian printf("Combined bitmap program:\n"); 2093ece9ace540447c4f0d340a6f9f27980b54f83fbBrian _mesa_print_program(p); 2103ece9ace540447c4f0d340a6f9f27980b54f83fbBrian printf("InputsRead: 0x%x\n", p->InputsRead); 2113ece9ace540447c4f0d340a6f9f27980b54f83fbBrian printf("OutputsWritten: 0x%x\n", p->OutputsWritten); 2123ece9ace540447c4f0d340a6f9f27980b54f83fbBrian _mesa_print_parameter_list(p->Parameters); 2133ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2143ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#endif 2153ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2163ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* translate to TGSI tokens */ 21733f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul st_translate_fragment_program(st, stfp->bitmap_program, NULL); 2183ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2193ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2203ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* Ideally we'd have updated the pipe constants during the normal 2213ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * st/atom mechanism. But we can't since this is specific to glBitmap. 2223ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 2233ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st_upload_constants(st, stfp->Base.Base.Parameters, PIPE_SHADER_FRAGMENT); 2243ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 22533f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul return stfp->bitmap_program; 2263ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 2273ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2283ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2293ece9ace540447c4f0d340a6f9f27980b54f83fbBrian/** 2307146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * Copy user-provide bitmap bits into texture buffer, expanding 2317146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * bits into texels. 2327146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * "On" bits will set texels to 0xff. 2337146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * "Off" bits will not modify texels. 2347146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * Note that the image is actually going to be upside down in 2357146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * the texture. We deal with that with texcoords. 2363ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 2377146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paulstatic void 2387146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paulunpack_bitmap(struct st_context *st, 2397146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul GLint px, GLint py, GLsizei width, GLsizei height, 2407146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul const struct gl_pixelstore_attrib *unpack, 2417146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul const GLubyte *bitmap, 2427146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul ubyte *destBuffer, uint destStride) 2433ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 2447146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul GLint row, col; 245f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul 2467146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul#define SET_PIXEL(COL, ROW) \ 2477146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul destBuffer[(py + (ROW)) * destStride + px + (COL)] = 0x0; 2483ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2493ece9ace540447c4f0d340a6f9f27980b54f83fbBrian for (row = 0; row < height; row++) { 2503ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const GLubyte *src = (const GLubyte *) _mesa_image_address2d(unpack, 2513ece9ace540447c4f0d340a6f9f27980b54f83fbBrian bitmap, width, height, GL_COLOR_INDEX, GL_BITMAP, row, 0); 2523ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2533ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (unpack->LsbFirst) { 2543ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* Lsb first */ 2553ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLubyte mask = 1U << (unpack->SkipPixels & 0x7); 2563ece9ace540447c4f0d340a6f9f27980b54f83fbBrian for (col = 0; col < width; col++) { 2573ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2587146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul if (*src & mask) { 2597146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul SET_PIXEL(col, row); 2607146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul } 2613ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2623ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (mask == 128U) { 2633ece9ace540447c4f0d340a6f9f27980b54f83fbBrian src++; 2643ece9ace540447c4f0d340a6f9f27980b54f83fbBrian mask = 1U; 2653ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2663ece9ace540447c4f0d340a6f9f27980b54f83fbBrian else { 2673ece9ace540447c4f0d340a6f9f27980b54f83fbBrian mask = mask << 1; 2683ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2693ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2703ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2713ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* get ready for next row */ 2723ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (mask != 1) 2733ece9ace540447c4f0d340a6f9f27980b54f83fbBrian src++; 2743ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2753ece9ace540447c4f0d340a6f9f27980b54f83fbBrian else { 2763ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* Msb first */ 2773ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLubyte mask = 128U >> (unpack->SkipPixels & 0x7); 2783ece9ace540447c4f0d340a6f9f27980b54f83fbBrian for (col = 0; col < width; col++) { 2793ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2807146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul if (*src & mask) { 2817146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul SET_PIXEL(col, row); 2827146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul } 2833ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2843ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (mask == 1U) { 2853ece9ace540447c4f0d340a6f9f27980b54f83fbBrian src++; 2863ece9ace540447c4f0d340a6f9f27980b54f83fbBrian mask = 128U; 2873ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2883ece9ace540447c4f0d340a6f9f27980b54f83fbBrian else { 2893ece9ace540447c4f0d340a6f9f27980b54f83fbBrian mask = mask >> 1; 2903ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2913ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2923ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2933ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* get ready for next row */ 2943ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (mask != 128) 2953ece9ace540447c4f0d340a6f9f27980b54f83fbBrian src++; 2963ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2973ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2983ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } /* row */ 2993ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3007146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul#undef SET_PIXEL 3017146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul} 3027146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 3037146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 3047146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul/** 3057146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * Create a texture which represents a bitmap image. 3067146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul */ 3077146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paulstatic struct pipe_texture * 3087146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paulmake_bitmap_texture(GLcontext *ctx, GLsizei width, GLsizei height, 3097146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul const struct gl_pixelstore_attrib *unpack, 3107146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul const GLubyte *bitmap) 3117146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul{ 3127146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul struct pipe_context *pipe = ctx->st->pipe; 3137146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul struct pipe_screen *screen = pipe->screen; 3147146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul struct pipe_surface *surface; 3157146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul ubyte *dest; 3167146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul struct pipe_texture *pt; 3177146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 3187146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul /* PBO source... */ 3197146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul bitmap = _mesa_map_bitmap_pbo(ctx, unpack, bitmap); 3207146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul if (!bitmap) { 3217146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul return NULL; 3227146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul } 3237146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 3247146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul /** 3257146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * Create texture to hold bitmap pattern. 3267146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul */ 3277146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul pt = st_texture_create(ctx->st, PIPE_TEXTURE_2D, ctx->st->bitmap.tex_format, 3287146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 0, width, height, 1, 0); 3297146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul if (!pt) { 3307146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul _mesa_unmap_bitmap_pbo(ctx, unpack); 3317146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul return NULL; 3327146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul } 3337146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 3347146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul surface = screen->get_tex_surface(screen, pt, 0, 0, 0); 3357146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 3367146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul /* map texture surface */ 3377146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul dest = pipe_surface_map(surface); 3387146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 3397146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul /* Put image into texture surface */ 3407146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul memset(dest, 0xff, height * surface->pitch); 3417146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul unpack_bitmap(ctx->st, 0, 0, width, height, unpack, bitmap, 3427146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul dest, surface->pitch); 3437146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 344f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul _mesa_unmap_bitmap_pbo(ctx, unpack); 345f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul 3463ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* Release surface */ 3473ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pipe_surface_unmap(surface); 3483ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pipe_surface_reference(&surface, NULL); 3493ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pipe->texture_update(pipe, pt, 0, 0x1); 3503ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3513ece9ace540447c4f0d340a6f9f27980b54f83fbBrian return pt; 3523ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 3533ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3543ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3553ece9ace540447c4f0d340a6f9f27980b54f83fbBrianstatic void 3563ece9ace540447c4f0d340a6f9f27980b54f83fbBriansetup_bitmap_vertex_data(struct st_context *st, 3573ece9ace540447c4f0d340a6f9f27980b54f83fbBrian int x, int y, int width, int height, 3583ece9ace540447c4f0d340a6f9f27980b54f83fbBrian float z, const float color[4]) 3593ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 3603ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_context *pipe = st->pipe; 3613ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const struct gl_framebuffer *fb = st->ctx->DrawBuffer; 362e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const GLfloat fb_width = fb->Width; 363e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const GLfloat fb_height = fb->Height; 3643ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const GLfloat x0 = x; 3653ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const GLfloat x1 = x + width; 366e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const GLfloat y0 = y; 367e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const GLfloat y1 = y + height; 3681cf164142768d8338527ee8cab8dee83af82af0bBrian Paul const GLfloat sLeft = 0.0F, sRight = 1.0F; 3691cf164142768d8338527ee8cab8dee83af82af0bBrian Paul const GLfloat tTop = 0.0, tBot = 1.0 - tTop; 370e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const GLfloat clip_x0 = x0 / fb_width * 2.0 - 1.0; 371e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const GLfloat clip_y0 = y0 / fb_height * 2.0 - 1.0; 372e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const GLfloat clip_x1 = x1 / fb_width * 2.0 - 1.0; 373e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const GLfloat clip_y1 = y1 / fb_height * 2.0 - 1.0; 3743ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLuint i; 3753ece9ace540447c4f0d340a6f9f27980b54f83fbBrian void *buf; 3763ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3773ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (!st->bitmap.vbuf) { 37899fba5466bfd14c4e052041c0571821be529e762Brian Paul st->bitmap.vbuf = pipe_buffer_create(pipe, 32, PIPE_BUFFER_USAGE_VERTEX, 37999fba5466bfd14c4e052041c0571821be529e762Brian Paul sizeof(st->bitmap.vertices)); 3803ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 3813ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 382e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian /* Positions are in clip coords since we need to do clipping in case 383e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian * the bitmap quad goes beyond the window bounds. 384e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian */ 385e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[0][0][0] = clip_x0; 386e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[0][0][1] = clip_y0; 3873ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[0][2][0] = sLeft; 3883ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[0][2][1] = tTop; 3893ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 390e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[1][0][0] = clip_x1; 391e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[1][0][1] = clip_y0; 3923ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[1][2][0] = sRight; 3933ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[1][2][1] = tTop; 3943ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 395e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[2][0][0] = clip_x1; 396e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[2][0][1] = clip_y1; 3973ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[2][2][0] = sRight; 3983ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[2][2][1] = tBot; 3993ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 400e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[3][0][0] = clip_x0; 401e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[3][0][1] = clip_y1; 4023ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[3][2][0] = sLeft; 4033ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[3][2][1] = tBot; 4043ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4053ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* same for all verts: */ 4063ece9ace540447c4f0d340a6f9f27980b54f83fbBrian for (i = 0; i < 4; i++) { 4073ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][0][2] = z; 4083ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][0][3] = 1.0; 4093ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][1][0] = color[0]; 4103ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][1][1] = color[1]; 4113ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][1][2] = color[2]; 4123ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][1][3] = color[3]; 4133ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][2][2] = 0.0; /*R*/ 4143ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][2][3] = 1.0; /*Q*/ 4153ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 4163ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4173ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* put vertex data into vbuf */ 41899fba5466bfd14c4e052041c0571821be529e762Brian Paul buf = pipe_buffer_map(pipe, st->bitmap.vbuf, PIPE_BUFFER_USAGE_CPU_WRITE); 4193ece9ace540447c4f0d340a6f9f27980b54f83fbBrian memcpy(buf, st->bitmap.vertices, sizeof(st->bitmap.vertices)); 42099fba5466bfd14c4e052041c0571821be529e762Brian Paul pipe_buffer_unmap(pipe, st->bitmap.vbuf); 4213ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 4223ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4233ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4243ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4253ece9ace540447c4f0d340a6f9f27980b54f83fbBrian/** 4263ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Render a glBitmap by drawing a textured quad 4273ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 4283ece9ace540447c4f0d340a6f9f27980b54f83fbBrianstatic void 4293ece9ace540447c4f0d340a6f9f27980b54f83fbBriandraw_bitmap_quad(GLcontext *ctx, GLint x, GLint y, GLfloat z, 4303ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLsizei width, GLsizei height, 431c62b197b528293abb56b099503344e3cdd7d6c40Brian struct pipe_texture *pt) 4323ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 4333ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct st_context *st = ctx->st; 4343ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_context *pipe = ctx->st->pipe; 4353ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct cso_context *cso = ctx->st->cso_context; 436c62b197b528293abb56b099503344e3cdd7d6c40Brian struct st_fragment_program *stfp; 4373ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLuint maxSize; 4383ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 439c62b197b528293abb56b099503344e3cdd7d6c40Brian stfp = combined_bitmap_fragment_program(ctx); 440c62b197b528293abb56b099503344e3cdd7d6c40Brian 4413ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* limit checks */ 442c62b197b528293abb56b099503344e3cdd7d6c40Brian /* XXX if the bitmap is larger than the max texture size, break 4433ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * it up into chunks. 4443ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 4453ece9ace540447c4f0d340a6f9f27980b54f83fbBrian maxSize = 1 << (pipe->screen->get_param(pipe->screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS) - 1); 4463ece9ace540447c4f0d340a6f9f27980b54f83fbBrian assert(width <= maxSize); 4473ece9ace540447c4f0d340a6f9f27980b54f83fbBrian assert(height <= maxSize); 4483ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4493ece9ace540447c4f0d340a6f9f27980b54f83fbBrian cso_save_rasterizer(cso); 450d246274b9c48c01b61490f0a76c22aebb8e64e1eBrian Paul cso_save_samplers(cso); 451ddc0f91bfc571dcd05c13f094c179b4250e53bccBrian cso_save_sampler_textures(cso); 452e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian cso_save_viewport(cso); 45365efe807b9067aa07b382e3c4d9cea6222c5fc6bMichel Dänzer cso_save_fragment_shader(cso); 45465efe807b9067aa07b382e3c4d9cea6222c5fc6bMichel Dänzer cso_save_vertex_shader(cso); 4553ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4563ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* rasterizer state: just scissor */ 457e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.rasterizer.scissor = ctx->Scissor.Enabled; 458e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian cso_set_rasterizer(cso, &st->bitmap.rasterizer); 4593ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4603ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* fragment shader state: TEX lookup program */ 46101dfa6cde157321f565bab949f23f367ed20fa0eKeith Whitwell cso_set_fragment_shader_handle(cso, stfp->driver_shader); 4623ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4633ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* vertex shader state: position + texcoord pass-through */ 46401dfa6cde157321f565bab949f23f367ed20fa0eKeith Whitwell cso_set_vertex_shader_handle(cso, st->bitmap.vs); 4653ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 46633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul /* user samplers, plus our bitmap sampler */ 46733f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul { 46833f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul struct pipe_sampler_state *samplers[PIPE_MAX_SAMPLERS]; 46933f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul uint num = MAX2(stfp->bitmap_sampler + 1, st->state.num_samplers); 47033f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul uint i; 47133f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul for (i = 0; i < st->state.num_samplers; i++) { 47233f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul samplers[i] = &st->state.samplers[i]; 47333f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul } 47433f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul samplers[stfp->bitmap_sampler] = &st->bitmap.sampler; 47533f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul cso_set_samplers(cso, num, (const struct pipe_sampler_state **) samplers); } 47633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul 47733f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul /* user textures, plus the bitmap texture */ 47833f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul { 47933f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul struct pipe_texture *textures[PIPE_MAX_SAMPLERS]; 48033f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul uint num = MAX2(stfp->bitmap_sampler + 1, st->state.num_textures); 48133f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul memcpy(textures, st->state.sampler_texture, sizeof(textures)); 48233f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul textures[stfp->bitmap_sampler] = pt; 48333f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul cso_set_sampler_textures(cso, num, textures); 48433f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul } 485e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian 486e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian /* viewport state: viewport matching window dims */ 4873ece9ace540447c4f0d340a6f9f27980b54f83fbBrian { 488e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const struct gl_framebuffer *fb = st->ctx->DrawBuffer; 489e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const GLboolean invert = (st_fb_orientation(fb) == Y_0_TOP); 490e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const float width = fb->Width; 491e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const float height = fb->Height; 492e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian struct pipe_viewport_state vp; 493e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian vp.scale[0] = 0.5 * width; 494e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian vp.scale[1] = height * (invert ? -0.5 : 0.5); 495e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian vp.scale[2] = 1.0; 496e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian vp.scale[3] = 1.0; 497e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian vp.translate[0] = 0.5 * width; 498e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian vp.translate[1] = 0.5 * height; 499e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian vp.translate[2] = 0.0; 500e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian vp.translate[3] = 0.0; 501e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian cso_set_viewport(cso, &vp); 5023ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 5033ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 5043ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* draw textured quad */ 5053ece9ace540447c4f0d340a6f9f27980b54f83fbBrian setup_bitmap_vertex_data(st, x, y, width, height, 5063ece9ace540447c4f0d340a6f9f27980b54f83fbBrian ctx->Current.RasterPos[2], 5073ece9ace540447c4f0d340a6f9f27980b54f83fbBrian ctx->Current.RasterColor); 5083ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 5093ece9ace540447c4f0d340a6f9f27980b54f83fbBrian util_draw_vertex_buffer(pipe, st->bitmap.vbuf, 5103ece9ace540447c4f0d340a6f9f27980b54f83fbBrian PIPE_PRIM_TRIANGLE_FAN, 5113ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4, /* verts */ 5123ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3); /* attribs/vert */ 5133ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 5143ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 5153ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* restore state */ 5163ece9ace540447c4f0d340a6f9f27980b54f83fbBrian cso_restore_rasterizer(cso); 5173ece9ace540447c4f0d340a6f9f27980b54f83fbBrian cso_restore_samplers(cso); 518ddc0f91bfc571dcd05c13f094c179b4250e53bccBrian cso_restore_sampler_textures(cso); 519e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian cso_restore_viewport(cso); 520fd4acd6fdaaad4871327d081f5501680ed9da2edMichel Dänzer cso_restore_fragment_shader(cso); 521fd4acd6fdaaad4871327d081f5501680ed9da2edMichel Dänzer cso_restore_vertex_shader(cso); 5223ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 5233ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 5243ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 525737e34aee598f32f8ff078ba823ed149b282ebc8Brianstatic void 526737e34aee598f32f8ff078ba823ed149b282ebc8Brianreset_cache(struct st_context *st) 527737e34aee598f32f8ff078ba823ed149b282ebc8Brian{ 528d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul struct pipe_context *pipe = st->pipe; 529d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul struct pipe_screen *screen = pipe->screen; 530d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul struct bitmap_cache *cache = st->bitmap.cache; 531737e34aee598f32f8ff078ba823ed149b282ebc8Brian 532d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul //memset(cache->buffer, 0xff, sizeof(cache->buffer)); 533d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->empty = GL_TRUE; 534737e34aee598f32f8ff078ba823ed149b282ebc8Brian 535d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->xmin = 1000000; 536d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->xmax = -1000000; 537d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->ymin = 1000000; 538d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->ymax = -1000000; 5393ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 540d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul assert(!cache->texture); 541c62b197b528293abb56b099503344e3cdd7d6c40Brian 542d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul /* allocate a new texture */ 543d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->texture = st_texture_create(st, PIPE_TEXTURE_2D, 544d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul st->bitmap.tex_format, 0, 545d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul BITMAP_CACHE_WIDTH, BITMAP_CACHE_HEIGHT, 546d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul 1, 0); 547c62b197b528293abb56b099503344e3cdd7d6c40Brian 548d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul /* Map the texture surface. 549d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul * Subsequent glBitmap calls will write into the texture image. 550d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul */ 551d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->surf = screen->get_tex_surface(screen, cache->texture, 0, 0, 0); 552d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->buffer = pipe_surface_map(cache->surf); 553d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul 554d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul /* init image to all 0xff */ 555d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul memset(cache->buffer, 0xff, BITMAP_CACHE_WIDTH * BITMAP_CACHE_HEIGHT); 556c62b197b528293abb56b099503344e3cdd7d6c40Brian} 557c62b197b528293abb56b099503344e3cdd7d6c40Brian 558c62b197b528293abb56b099503344e3cdd7d6c40Brian 559c62b197b528293abb56b099503344e3cdd7d6c40Brian/** 560c62b197b528293abb56b099503344e3cdd7d6c40Brian * If there's anything in the bitmap cache, draw/flush it now. 561c62b197b528293abb56b099503344e3cdd7d6c40Brian */ 562c62b197b528293abb56b099503344e3cdd7d6c40Brianvoid 563c62b197b528293abb56b099503344e3cdd7d6c40Brianst_flush_bitmap_cache(struct st_context *st) 564c62b197b528293abb56b099503344e3cdd7d6c40Brian{ 565c62b197b528293abb56b099503344e3cdd7d6c40Brian if (!st->bitmap.cache->empty) { 566985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul if (st->ctx->DrawBuffer) { 567985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul struct bitmap_cache *cache = st->bitmap.cache; 568985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul struct pipe_context *pipe = st->pipe; 569985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul 570985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul assert(cache->xmin <= cache->xmax); 571985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul /* 572985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul printf("flush size %d x %d at %d, %d\n", 573985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul cache->xmax - cache->xmin, 574985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul cache->ymax - cache->ymin, 575985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul cache->xpos, cache->ypos); 576985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul */ 577985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul 578d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul /* The texture surface has been mapped until now. 579d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul * So unmap and release the texture surface before drawing. 5806fb40092261b891b78e504f453fddf041f9efac6Brian Paul */ 581d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul pipe_surface_unmap(cache->surf); 582d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul pipe_surface_reference(&cache->surf, NULL); 5836fb40092261b891b78e504f453fddf041f9efac6Brian Paul 584d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul /* XXX is this needed? */ 585985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul pipe->texture_update(pipe, cache->texture, 0, 0x1); 586985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul 587985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul draw_bitmap_quad(st->ctx, 588985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul cache->xpos, 589985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul cache->ypos, 590985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul st->ctx->Current.RasterPos[2], 591985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul BITMAP_CACHE_WIDTH, BITMAP_CACHE_HEIGHT, 592985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul cache->texture); 593d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul 594d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul /* release/free the texture */ 595d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul pipe_texture_reference(&cache->texture, NULL); 596985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul } 597737e34aee598f32f8ff078ba823ed149b282ebc8Brian reset_cache(st); 598c62b197b528293abb56b099503344e3cdd7d6c40Brian } 599c62b197b528293abb56b099503344e3cdd7d6c40Brian} 600c62b197b528293abb56b099503344e3cdd7d6c40Brian 601c62b197b528293abb56b099503344e3cdd7d6c40Brian 602c62b197b528293abb56b099503344e3cdd7d6c40Brian/** 603c62b197b528293abb56b099503344e3cdd7d6c40Brian * Try to accumulate this glBitmap call in the bitmap cache. 604c62b197b528293abb56b099503344e3cdd7d6c40Brian * \return GL_TRUE for success, GL_FALSE if bitmap is too large, etc. 605c62b197b528293abb56b099503344e3cdd7d6c40Brian */ 606c62b197b528293abb56b099503344e3cdd7d6c40Brianstatic GLboolean 607c62b197b528293abb56b099503344e3cdd7d6c40Brianaccum_bitmap(struct st_context *st, 608c62b197b528293abb56b099503344e3cdd7d6c40Brian GLint x, GLint y, GLsizei width, GLsizei height, 609c62b197b528293abb56b099503344e3cdd7d6c40Brian const struct gl_pixelstore_attrib *unpack, 610c62b197b528293abb56b099503344e3cdd7d6c40Brian const GLubyte *bitmap ) 611c62b197b528293abb56b099503344e3cdd7d6c40Brian{ 612737e34aee598f32f8ff078ba823ed149b282ebc8Brian struct bitmap_cache *cache = st->bitmap.cache; 613c62b197b528293abb56b099503344e3cdd7d6c40Brian int px = -999, py; 614c62b197b528293abb56b099503344e3cdd7d6c40Brian 615c62b197b528293abb56b099503344e3cdd7d6c40Brian if (width > BITMAP_CACHE_WIDTH || 616c62b197b528293abb56b099503344e3cdd7d6c40Brian height > BITMAP_CACHE_HEIGHT) 617c62b197b528293abb56b099503344e3cdd7d6c40Brian return GL_FALSE; /* too big to cache */ 618c62b197b528293abb56b099503344e3cdd7d6c40Brian 619737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (!cache->empty) { 620737e34aee598f32f8ff078ba823ed149b282ebc8Brian px = x - cache->xpos; /* pos in buffer */ 621737e34aee598f32f8ff078ba823ed149b282ebc8Brian py = y - cache->ypos; 622c62b197b528293abb56b099503344e3cdd7d6c40Brian if (px < 0 || px + width > BITMAP_CACHE_WIDTH || 623c62b197b528293abb56b099503344e3cdd7d6c40Brian py < 0 || py + height > BITMAP_CACHE_HEIGHT) { 624c62b197b528293abb56b099503344e3cdd7d6c40Brian /* This bitmap would extend beyond cache bounds, 625c62b197b528293abb56b099503344e3cdd7d6c40Brian * so flush and continue. 626c62b197b528293abb56b099503344e3cdd7d6c40Brian */ 627c62b197b528293abb56b099503344e3cdd7d6c40Brian st_flush_bitmap_cache(st); 628c62b197b528293abb56b099503344e3cdd7d6c40Brian } 629c62b197b528293abb56b099503344e3cdd7d6c40Brian } 630c62b197b528293abb56b099503344e3cdd7d6c40Brian 631737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (cache->empty) { 632c62b197b528293abb56b099503344e3cdd7d6c40Brian /* Initialize. Center bitmap vertically in the buffer. */ 633c62b197b528293abb56b099503344e3cdd7d6c40Brian px = 0; 634c62b197b528293abb56b099503344e3cdd7d6c40Brian py = (BITMAP_CACHE_HEIGHT - height) / 2; 635737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->xpos = x; 636737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->ypos = y - py; 637737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->empty = GL_FALSE; 638c62b197b528293abb56b099503344e3cdd7d6c40Brian } 639c62b197b528293abb56b099503344e3cdd7d6c40Brian 640c62b197b528293abb56b099503344e3cdd7d6c40Brian assert(px != -999); 641c62b197b528293abb56b099503344e3cdd7d6c40Brian 642737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (x < cache->xmin) 643737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->xmin = x; 644737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (y < cache->ymin) 645737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->ymin = y; 646737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (x + width > cache->xmax) 647737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->xmax = x + width; 648737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (y + height > cache->ymax) 649737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->ymax = y + height; 650737e34aee598f32f8ff078ba823ed149b282ebc8Brian 6517146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul unpack_bitmap(st, px, py, width, height, unpack, bitmap, 6527146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul cache->buffer, BITMAP_CACHE_WIDTH); 653c62b197b528293abb56b099503344e3cdd7d6c40Brian 654c62b197b528293abb56b099503344e3cdd7d6c40Brian return GL_TRUE; /* accumulated */ 655c62b197b528293abb56b099503344e3cdd7d6c40Brian} 656c62b197b528293abb56b099503344e3cdd7d6c40Brian 657c62b197b528293abb56b099503344e3cdd7d6c40Brian 658c62b197b528293abb56b099503344e3cdd7d6c40Brian 659c62b197b528293abb56b099503344e3cdd7d6c40Brian/** 660c62b197b528293abb56b099503344e3cdd7d6c40Brian * Called via ctx->Driver.Bitmap() 661c62b197b528293abb56b099503344e3cdd7d6c40Brian */ 662c62b197b528293abb56b099503344e3cdd7d6c40Brianstatic void 6633ece9ace540447c4f0d340a6f9f27980b54f83fbBrianst_Bitmap(GLcontext *ctx, GLint x, GLint y, GLsizei width, GLsizei height, 6643ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const struct gl_pixelstore_attrib *unpack, const GLubyte *bitmap ) 6653ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 6663ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct st_context *st = ctx->st; 6673ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_texture *pt; 6683ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 6691ecb2e4a7a5881d5a98679b421d78fd11c729ebcBrian Paul st_validate_state(st); 6701ecb2e4a7a5881d5a98679b421d78fd11c729ebcBrian Paul 6713ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (!st->bitmap.vs) { 6723ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* create pass-through vertex shader now */ 6733ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const uint semantic_names[] = { TGSI_SEMANTIC_POSITION, 6743ece9ace540447c4f0d340a6f9f27980b54f83fbBrian TGSI_SEMANTIC_COLOR, 6753ece9ace540447c4f0d340a6f9f27980b54f83fbBrian TGSI_SEMANTIC_GENERIC }; 6763ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const uint semantic_indexes[] = { 0, 0, 0 }; 6773ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vs = util_make_vertex_passthrough_shader(st->pipe, 3, 6783ece9ace540447c4f0d340a6f9f27980b54f83fbBrian semantic_names, 6796f8286163c79a8187c2912a9b673a6f11f4f60c6Brian semantic_indexes, 6806f8286163c79a8187c2912a9b673a6f11f4f60c6Brian &st->bitmap.vert_shader); 6813ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 6823ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 683c62b197b528293abb56b099503344e3cdd7d6c40Brian if (UseBitmapCache && accum_bitmap(st, x, y, width, height, unpack, bitmap)) 684c62b197b528293abb56b099503344e3cdd7d6c40Brian return; 6853ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 6863ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pt = make_bitmap_texture(ctx, width, height, unpack, bitmap); 6873ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (pt) { 6886f8286163c79a8187c2912a9b673a6f11f4f60c6Brian assert(pt->target == PIPE_TEXTURE_2D); 6893ece9ace540447c4f0d340a6f9f27980b54f83fbBrian draw_bitmap_quad(ctx, x, y, ctx->Current.RasterPos[2], 690c62b197b528293abb56b099503344e3cdd7d6c40Brian width, height, pt); 691d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul /* release/free the texture */ 6923ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pipe_texture_reference(&pt, NULL); 6933ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 6943ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 6953ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 6963ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 697c62b197b528293abb56b099503344e3cdd7d6c40Brian/** Per-context init */ 698c62b197b528293abb56b099503344e3cdd7d6c40Brianvoid 699c62b197b528293abb56b099503344e3cdd7d6c40Brianst_init_bitmap_functions(struct dd_function_table *functions) 7003ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 7013ece9ace540447c4f0d340a6f9f27980b54f83fbBrian functions->Bitmap = st_Bitmap; 7023ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 7033ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 7043ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 705c62b197b528293abb56b099503344e3cdd7d6c40Brian/** Per-context init */ 706c62b197b528293abb56b099503344e3cdd7d6c40Brianvoid 707c62b197b528293abb56b099503344e3cdd7d6c40Brianst_init_bitmap(struct st_context *st) 708c62b197b528293abb56b099503344e3cdd7d6c40Brian{ 709e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian struct pipe_sampler_state *sampler = &st->bitmap.sampler; 710eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul struct pipe_context *pipe = st->pipe; 711eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul struct pipe_screen *screen = pipe->screen; 712e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian 713e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian /* init sampler state once */ 714e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian memset(sampler, 0, sizeof(*sampler)); 715e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->wrap_s = PIPE_TEX_WRAP_CLAMP; 716e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->wrap_t = PIPE_TEX_WRAP_CLAMP; 717e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->wrap_r = PIPE_TEX_WRAP_CLAMP; 718e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->min_img_filter = PIPE_TEX_FILTER_NEAREST; 719e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->min_mip_filter = PIPE_TEX_MIPFILTER_NONE; 720e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->mag_img_filter = PIPE_TEX_FILTER_NEAREST; 721e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->normalized_coords = 1; 722e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian 7236a382250a10e7022e93b6be6fe4657445d85a568Brian /* init baseline rasterizer state once */ 724e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian memset(&st->bitmap.rasterizer, 0, sizeof(st->bitmap.rasterizer)); 725124e1345c9ba4abe17bb04b8781ec0fe803eda7bBrian st->bitmap.rasterizer.gl_rasterization_rules = 1; 7266a382250a10e7022e93b6be6fe4657445d85a568Brian st->bitmap.rasterizer.bypass_vs = 1; 727e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian 728eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul /* find a usable texture format */ 72954f94a790e4488445347abcff9a636a9c440d7f9Brian Paul if (screen->is_format_supported(screen, PIPE_FORMAT_I8_UNORM, PIPE_TEXTURE)) { 73054f94a790e4488445347abcff9a636a9c440d7f9Brian Paul st->bitmap.tex_format = PIPE_FORMAT_I8_UNORM; 731eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul } 732eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul else { 733eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul /* XXX support more formats */ 734eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul assert(0); 735eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul } 736eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul 737d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul /* alloc bitmap cache object */ 738d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul st->bitmap.cache = CALLOC_STRUCT(bitmap_cache); 739d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul 740d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul reset_cache(st); 741c62b197b528293abb56b099503344e3cdd7d6c40Brian} 742c62b197b528293abb56b099503344e3cdd7d6c40Brian 743c62b197b528293abb56b099503344e3cdd7d6c40Brian 744c62b197b528293abb56b099503344e3cdd7d6c40Brian/** Per-context tear-down */ 7453ece9ace540447c4f0d340a6f9f27980b54f83fbBrianvoid 7463ece9ace540447c4f0d340a6f9f27980b54f83fbBrianst_destroy_bitmap(struct st_context *st) 7473ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 7483ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_context *pipe = st->pipe; 7493ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 7503ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (st->bitmap.vs) { 751a770d40c3d4977e2c134661b5d8facaea446b6eaBrian Paul cso_delete_vertex_shader(st->cso_context, st->bitmap.vs); 7523ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vs = NULL; 7533ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 754c62b197b528293abb56b099503344e3cdd7d6c40Brian 7553ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (st->bitmap.vbuf) { 75699fba5466bfd14c4e052041c0571821be529e762Brian Paul pipe_buffer_destroy(pipe, st->bitmap.vbuf); 7573ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vbuf = NULL; 7583ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 7593ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 760c62b197b528293abb56b099503344e3cdd7d6c40Brian if (st->bitmap.cache) { 761c62b197b528293abb56b099503344e3cdd7d6c40Brian pipe_texture_release(&st->bitmap.cache->texture); 762c62b197b528293abb56b099503344e3cdd7d6c40Brian FREE(st->bitmap.cache); 763c62b197b528293abb56b099503344e3cdd7d6c40Brian st->bitmap.cache = NULL; 764c62b197b528293abb56b099503344e3cdd7d6c40Brian } 765c62b197b528293abb56b099503344e3cdd7d6c40Brian} 766