st_cb_bitmap.c revision 4617981ec72f7985941bee4b03c534d97ff96bc6
13ece9ace540447c4f0d340a6f9f27980b54f83fbBrian/************************************************************************** 23ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * 33ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. 43ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * All Rights Reserved. 53ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * 63ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Permission is hereby granted, free of charge, to any person obtaining a 73ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * copy of this software and associated documentation files (the 83ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * "Software"), to deal in the Software without restriction, including 93ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * without limitation the rights to use, copy, modify, merge, publish, 103ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * distribute, sub license, and/or sell copies of the Software, and to 113ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * permit persons to whom the Software is furnished to do so, subject to 123ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * the following conditions: 133ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * 143ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * The above copyright notice and this permission notice (including the 153ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * next paragraph) shall be included in all copies or substantial portions 163ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * of the Software. 173ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * 183ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 193ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 203ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 213ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR 223ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 233ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 243ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 253ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * 263ece9ace540447c4f0d340a6f9f27980b54f83fbBrian **************************************************************************/ 273ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 283ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* 293ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Authors: 303ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Brian Paul 313ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 323ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 333ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "main/imports.h" 343ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "main/image.h" 35f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul#include "main/bufferobj.h" 363ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "main/macros.h" 373ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "main/texformat.h" 383ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "shader/program.h" 393ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "shader/prog_parameter.h" 403ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "shader/prog_print.h" 413ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 423ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "st_context.h" 433ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "st_atom.h" 443ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "st_atom_constbuf.h" 453ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "st_program.h" 463ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "st_cb_bitmap.h" 4722a3d022542fed267d48b48a44e10226d55c8afdBrian Paul#include "st_cb_program.h" 483ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "st_mesa_to_tgsi.h" 493ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "st_texture.h" 503ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "pipe/p_context.h" 513ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "pipe/p_defines.h" 523ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "pipe/p_inlines.h" 534f25420bdd834e81a3e22733304efc5261c2998aBrian Paul#include "util/u_tile.h" 543ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "util/u_draw_quad.h" 553ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "util/u_simple_shaders.h" 563ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "shader/prog_instruction.h" 573ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "cso_cache/cso_context.h" 583ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 593ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 603ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 613ece9ace540447c4f0d340a6f9f27980b54f83fbBrian/** 626b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * glBitmaps are drawn as textured quads. The user's bitmap pattern 636b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * is stored in a texture image. An alpha8 texture format is used. 646b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * The fragment shader samples a bit (texel) from the texture, then 656b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * discards the fragment if the bit is off. 666b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * 676b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * Note that we actually store the inverse image of the bitmap to 686b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * simplify the fragment program. An "on" bit gets stored as texel=0x0 696b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * and an "off" bit is stored as texel=0xff. Then we kill the 706b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * fragment if the negated texel value is less than zero. 716b0be38a6cfecd2babc7175b0877bed522ca9f72Brian */ 726b0be38a6cfecd2babc7175b0877bed522ca9f72Brian 736b0be38a6cfecd2babc7175b0877bed522ca9f72Brian 746b0be38a6cfecd2babc7175b0877bed522ca9f72Brian/** 75c62b197b528293abb56b099503344e3cdd7d6c40Brian * The bitmap cache attempts to accumulate multiple glBitmap calls in a 76c62b197b528293abb56b099503344e3cdd7d6c40Brian * buffer which is then rendered en mass upon a flush, state change, etc. 77c62b197b528293abb56b099503344e3cdd7d6c40Brian * A wide, short buffer is used to target the common case of a series 78c62b197b528293abb56b099503344e3cdd7d6c40Brian * of glBitmap calls being used to draw text. 79c62b197b528293abb56b099503344e3cdd7d6c40Brian */ 807292db2138001b48bba006cc08e9ff7091d16559Brianstatic GLboolean UseBitmapCache = GL_TRUE; 81c62b197b528293abb56b099503344e3cdd7d6c40Brian 82c62b197b528293abb56b099503344e3cdd7d6c40Brian 83c62b197b528293abb56b099503344e3cdd7d6c40Brian#define BITMAP_CACHE_WIDTH 512 84c62b197b528293abb56b099503344e3cdd7d6c40Brian#define BITMAP_CACHE_HEIGHT 32 85c62b197b528293abb56b099503344e3cdd7d6c40Brian 86c62b197b528293abb56b099503344e3cdd7d6c40Brianstruct bitmap_cache 87c62b197b528293abb56b099503344e3cdd7d6c40Brian{ 88c62b197b528293abb56b099503344e3cdd7d6c40Brian /** Window pos to render the cached image */ 89c62b197b528293abb56b099503344e3cdd7d6c40Brian GLint xpos, ypos; 90737e34aee598f32f8ff078ba823ed149b282ebc8Brian /** Bounds of region used in window coords */ 91737e34aee598f32f8ff078ba823ed149b282ebc8Brian GLint xmin, ymin, xmax, ymax; 92d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul 93318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul GLfloat color[4]; 94318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul 95c62b197b528293abb56b099503344e3cdd7d6c40Brian struct pipe_texture *texture; 964617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer struct pipe_transfer *trans; 97d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul 98737e34aee598f32f8ff078ba823ed149b282ebc8Brian GLboolean empty; 99d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul 100737e34aee598f32f8ff078ba823ed149b282ebc8Brian /** An I8 texture image: */ 101d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul ubyte *buffer; 102c62b197b528293abb56b099503344e3cdd7d6c40Brian}; 103c62b197b528293abb56b099503344e3cdd7d6c40Brian 104c62b197b528293abb56b099503344e3cdd7d6c40Brian 105c62b197b528293abb56b099503344e3cdd7d6c40Brian 106c62b197b528293abb56b099503344e3cdd7d6c40Brian 107c62b197b528293abb56b099503344e3cdd7d6c40Brian/** 1083ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Make fragment program for glBitmap: 1093ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Sample the texture and kill the fragment if the bit is 0. 1103ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * This program will be combined with the user's fragment program. 1113ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 1123ece9ace540447c4f0d340a6f9f27980b54f83fbBrianstatic struct st_fragment_program * 11333f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paulmake_bitmap_fragment_program(GLcontext *ctx, GLuint samplerIndex) 1143ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 1153ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct st_fragment_program *stfp; 1163ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct gl_program *p; 1173ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLuint ic = 0; 1183ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1193ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p = ctx->Driver.NewProgram(ctx, GL_FRAGMENT_PROGRAM_ARB, 0); 1203ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (!p) 1213ece9ace540447c4f0d340a6f9f27980b54f83fbBrian return NULL; 1223ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1236b0be38a6cfecd2babc7175b0877bed522ca9f72Brian p->NumInstructions = 3; 1243ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1253ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions = _mesa_alloc_instructions(p->NumInstructions); 1263ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (!p->Instructions) { 1273ece9ace540447c4f0d340a6f9f27980b54f83fbBrian ctx->Driver.DeleteProgram(ctx, p); 1283ece9ace540447c4f0d340a6f9f27980b54f83fbBrian return NULL; 1293ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 1303ece9ace540447c4f0d340a6f9f27980b54f83fbBrian _mesa_init_instructions(p->Instructions, p->NumInstructions); 1313ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1323ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* TEX tmp0, fragment.texcoord[0], texture[0], 2D; */ 1333ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].Opcode = OPCODE_TEX; 1343ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].DstReg.File = PROGRAM_TEMPORARY; 1353ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].DstReg.Index = 0; 1363ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].SrcReg[0].File = PROGRAM_INPUT; 1373ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].SrcReg[0].Index = FRAG_ATTRIB_TEX0; 13833f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul p->Instructions[ic].TexSrcUnit = samplerIndex; 1393ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].TexSrcTarget = TEXTURE_2D_INDEX; 1403ece9ace540447c4f0d340a6f9f27980b54f83fbBrian ic++; 1413ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1426b0be38a6cfecd2babc7175b0877bed522ca9f72Brian /* KIL if -tmp0 < 0 # texel=0 -> keep / texel=0 -> discard */ 1433ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].Opcode = OPCODE_KIL; 1443ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].SrcReg[0].File = PROGRAM_TEMPORARY; 1453ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].SrcReg[0].Index = 0; 1466b0be38a6cfecd2babc7175b0877bed522ca9f72Brian p->Instructions[ic].SrcReg[0].NegateBase = NEGATE_XYZW; 1473ece9ace540447c4f0d340a6f9f27980b54f83fbBrian ic++; 1483ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1493ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* END; */ 1503ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic++].Opcode = OPCODE_END; 1513ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1523ece9ace540447c4f0d340a6f9f27980b54f83fbBrian assert(ic == p->NumInstructions); 1533ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1543ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->InputsRead = FRAG_BIT_TEX0; 1553ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->OutputsWritten = 0x0; 15633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul p->SamplersUsed = (1 << samplerIndex); 1573ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1583ece9ace540447c4f0d340a6f9f27980b54f83fbBrian stfp = (struct st_fragment_program *) p; 1593ece9ace540447c4f0d340a6f9f27980b54f83fbBrian stfp->Base.UsesKill = GL_TRUE; 1603ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st_translate_fragment_program(ctx->st, stfp, NULL); 1613ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1623ece9ace540447c4f0d340a6f9f27980b54f83fbBrian return stfp; 1633ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 1643ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1653ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 16633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paulstatic int 16733f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paulfind_free_bit(uint bitfield) 16833f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul{ 16933f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul int i; 17033f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul for (i = 0; i < 32; i++) { 17133f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul if ((bitfield & (1 << i)) == 0) { 17233f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul return i; 17333f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul } 17433f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul } 17533f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul return -1; 17633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul} 17733f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul 17833f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul 1793ece9ace540447c4f0d340a6f9f27980b54f83fbBrian/** 1803ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Combine basic bitmap fragment program with the user-defined program. 1813ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 1823ece9ace540447c4f0d340a6f9f27980b54f83fbBrianstatic struct st_fragment_program * 1833ece9ace540447c4f0d340a6f9f27980b54f83fbBriancombined_bitmap_fragment_program(GLcontext *ctx) 1843ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 1853ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct st_context *st = ctx->st; 18633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul struct st_fragment_program *stfp = st->fp; 1873ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 18833f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul if (!stfp->bitmap_program) { 18933f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul /* 19033f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul * Generate new program which is the user-defined program prefixed 19133f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul * with the bitmap sampler/kill instructions. 1923ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 19333f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul struct st_fragment_program *bitmap_prog; 19433f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul uint sampler; 1953ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 19633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul sampler = find_free_bit(st->fp->Base.Base.SamplersUsed); 19733f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul bitmap_prog = make_bitmap_fragment_program(ctx, sampler); 19833f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul 19933f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul stfp->bitmap_program = (struct st_fragment_program *) 20033f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul _mesa_combine_programs(ctx, 20133f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul &bitmap_prog->Base.Base, &stfp->Base.Base); 20233f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul stfp->bitmap_program->bitmap_sampler = sampler; 203ac09b0e0eb30f6691e35638f210c04ac0f867ea8Brian Paul 204ac09b0e0eb30f6691e35638f210c04ac0f867ea8Brian Paul /* done with this after combining */ 205ac09b0e0eb30f6691e35638f210c04ac0f867ea8Brian Paul st_reference_fragprog(st, &bitmap_prog, NULL); 206ac09b0e0eb30f6691e35638f210c04ac0f867ea8Brian Paul 2073ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#if 0 2083ece9ace540447c4f0d340a6f9f27980b54f83fbBrian { 20933f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul struct gl_program *p = &stfp->bitmap_program->Base.Base; 2103ece9ace540447c4f0d340a6f9f27980b54f83fbBrian printf("Combined bitmap program:\n"); 2113ece9ace540447c4f0d340a6f9f27980b54f83fbBrian _mesa_print_program(p); 2123ece9ace540447c4f0d340a6f9f27980b54f83fbBrian printf("InputsRead: 0x%x\n", p->InputsRead); 2133ece9ace540447c4f0d340a6f9f27980b54f83fbBrian printf("OutputsWritten: 0x%x\n", p->OutputsWritten); 2143ece9ace540447c4f0d340a6f9f27980b54f83fbBrian _mesa_print_parameter_list(p->Parameters); 2153ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2163ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#endif 2173ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2183ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* translate to TGSI tokens */ 21933f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul st_translate_fragment_program(st, stfp->bitmap_program, NULL); 2203ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2213ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 22233f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul return stfp->bitmap_program; 2233ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 2243ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2253ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2263ece9ace540447c4f0d340a6f9f27980b54f83fbBrian/** 2277146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * Copy user-provide bitmap bits into texture buffer, expanding 2287146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * bits into texels. 2297146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * "On" bits will set texels to 0xff. 2307146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * "Off" bits will not modify texels. 2317146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * Note that the image is actually going to be upside down in 2327146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * the texture. We deal with that with texcoords. 2333ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 2347146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paulstatic void 2357146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paulunpack_bitmap(struct st_context *st, 2367146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul GLint px, GLint py, GLsizei width, GLsizei height, 2377146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul const struct gl_pixelstore_attrib *unpack, 2387146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul const GLubyte *bitmap, 2397146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul ubyte *destBuffer, uint destStride) 2403ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 2417146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul GLint row, col; 242f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul 2437146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul#define SET_PIXEL(COL, ROW) \ 2447146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul destBuffer[(py + (ROW)) * destStride + px + (COL)] = 0x0; 2453ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2463ece9ace540447c4f0d340a6f9f27980b54f83fbBrian for (row = 0; row < height; row++) { 2473ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const GLubyte *src = (const GLubyte *) _mesa_image_address2d(unpack, 2483ece9ace540447c4f0d340a6f9f27980b54f83fbBrian bitmap, width, height, GL_COLOR_INDEX, GL_BITMAP, row, 0); 2493ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2503ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (unpack->LsbFirst) { 2513ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* Lsb first */ 2523ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLubyte mask = 1U << (unpack->SkipPixels & 0x7); 2533ece9ace540447c4f0d340a6f9f27980b54f83fbBrian for (col = 0; col < width; col++) { 2543ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2557146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul if (*src & mask) { 2567146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul SET_PIXEL(col, row); 2577146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul } 2583ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2593ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (mask == 128U) { 2603ece9ace540447c4f0d340a6f9f27980b54f83fbBrian src++; 2613ece9ace540447c4f0d340a6f9f27980b54f83fbBrian mask = 1U; 2623ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2633ece9ace540447c4f0d340a6f9f27980b54f83fbBrian else { 2643ece9ace540447c4f0d340a6f9f27980b54f83fbBrian mask = mask << 1; 2653ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2663ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2673ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2683ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* get ready for next row */ 2693ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (mask != 1) 2703ece9ace540447c4f0d340a6f9f27980b54f83fbBrian src++; 2713ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2723ece9ace540447c4f0d340a6f9f27980b54f83fbBrian else { 2733ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* Msb first */ 2743ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLubyte mask = 128U >> (unpack->SkipPixels & 0x7); 2753ece9ace540447c4f0d340a6f9f27980b54f83fbBrian for (col = 0; col < width; col++) { 2763ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2777146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul if (*src & mask) { 2787146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul SET_PIXEL(col, row); 2797146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul } 2803ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2813ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (mask == 1U) { 2823ece9ace540447c4f0d340a6f9f27980b54f83fbBrian src++; 2833ece9ace540447c4f0d340a6f9f27980b54f83fbBrian mask = 128U; 2843ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2853ece9ace540447c4f0d340a6f9f27980b54f83fbBrian else { 2863ece9ace540447c4f0d340a6f9f27980b54f83fbBrian mask = mask >> 1; 2873ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2883ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2893ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2903ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* get ready for next row */ 2913ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (mask != 128) 2923ece9ace540447c4f0d340a6f9f27980b54f83fbBrian src++; 2933ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2943ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2953ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } /* row */ 2963ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2977146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul#undef SET_PIXEL 2987146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul} 2997146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 3007146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 3017146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul/** 3027146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * Create a texture which represents a bitmap image. 3037146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul */ 3047146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paulstatic struct pipe_texture * 3057146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paulmake_bitmap_texture(GLcontext *ctx, GLsizei width, GLsizei height, 3067146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul const struct gl_pixelstore_attrib *unpack, 3077146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul const GLubyte *bitmap) 3087146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul{ 3097146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul struct pipe_context *pipe = ctx->st->pipe; 3107146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul struct pipe_screen *screen = pipe->screen; 3114617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer struct pipe_transfer *transfer; 3127146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul ubyte *dest; 3137146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul struct pipe_texture *pt; 3147146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 3157146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul /* PBO source... */ 3167146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul bitmap = _mesa_map_bitmap_pbo(ctx, unpack, bitmap); 3177146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul if (!bitmap) { 3187146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul return NULL; 3197146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul } 3207146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 3217146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul /** 3227146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * Create texture to hold bitmap pattern. 3237146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul */ 3247146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul pt = st_texture_create(ctx->st, PIPE_TEXTURE_2D, ctx->st->bitmap.tex_format, 325a73ae3d5eb8419feab5aea26573aa41b72f941ebKeith Whitwell 0, width, height, 1, 0, 326a73ae3d5eb8419feab5aea26573aa41b72f941ebKeith Whitwell PIPE_TEXTURE_USAGE_SAMPLER); 3277146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul if (!pt) { 3287146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul _mesa_unmap_bitmap_pbo(ctx, unpack); 3297146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul return NULL; 3307146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul } 3317146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 3324617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer transfer = screen->get_tex_transfer(screen, pt, 0, 0, 0, PIPE_TRANSFER_WRITE, 3334617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer 0, 0, width, height); 3347146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 3354617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer dest = screen->transfer_map(screen, transfer); 3367146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 3374617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer /* Put image into texture transfer */ 3384617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer memset(dest, 0xff, height * transfer->stride); 3397146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul unpack_bitmap(ctx->st, 0, 0, width, height, unpack, bitmap, 3404617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer dest, transfer->stride); 3417146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 342f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul _mesa_unmap_bitmap_pbo(ctx, unpack); 343f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul 3444617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer /* Release transfer */ 3454617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer screen->transfer_unmap(screen, transfer); 3464617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer screen->tex_transfer_release(screen, &transfer); 3473ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3483ece9ace540447c4f0d340a6f9f27980b54f83fbBrian return pt; 3493ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 3503ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 351d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwellstatic GLuint 3523ece9ace540447c4f0d340a6f9f27980b54f83fbBriansetup_bitmap_vertex_data(struct st_context *st, 3533ece9ace540447c4f0d340a6f9f27980b54f83fbBrian int x, int y, int width, int height, 3543ece9ace540447c4f0d340a6f9f27980b54f83fbBrian float z, const float color[4]) 3553ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 3563ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_context *pipe = st->pipe; 3573ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const struct gl_framebuffer *fb = st->ctx->DrawBuffer; 35853174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat fb_width = (GLfloat)fb->Width; 35953174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat fb_height = (GLfloat)fb->Height; 36053174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat x0 = (GLfloat)x; 36153174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat x1 = (GLfloat)(x + width); 36253174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat y0 = (GLfloat)y; 36353174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat y1 = (GLfloat)(y + height); 36453174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat sLeft = (GLfloat)0.0, sRight = (GLfloat)1.0; 36553174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat tTop = (GLfloat)0.0, tBot = (GLfloat)1.0 - tTop; 36653174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat clip_x0 = (GLfloat)(x0 / fb_width * 2.0 - 1.0); 36753174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat clip_y0 = (GLfloat)(y0 / fb_height * 2.0 - 1.0); 36853174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat clip_x1 = (GLfloat)(x1 / fb_width * 2.0 - 1.0); 36953174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat clip_y1 = (GLfloat)(y1 / fb_height * 2.0 - 1.0); 370d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell const GLuint max_slots = 4096 / sizeof(st->bitmap.vertices); 3713ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLuint i; 372d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell 373d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell if (st->bitmap.vbuf_slot >= max_slots) { 374d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell pipe_buffer_reference(pipe->screen, &st->bitmap.vbuf, NULL); 375d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell st->bitmap.vbuf_slot = 0; 376d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell } 3773ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3783ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (!st->bitmap.vbuf) { 379d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell st->bitmap.vbuf = pipe_buffer_create(pipe->screen, 32, 380d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell PIPE_BUFFER_USAGE_VERTEX, 381d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell max_slots * sizeof(st->bitmap.vertices)); 3823ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 3833ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 384e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian /* Positions are in clip coords since we need to do clipping in case 385e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian * the bitmap quad goes beyond the window bounds. 386e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian */ 387e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[0][0][0] = clip_x0; 388e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[0][0][1] = clip_y0; 3893ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[0][2][0] = sLeft; 3903ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[0][2][1] = tTop; 3913ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 392e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[1][0][0] = clip_x1; 393e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[1][0][1] = clip_y0; 3943ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[1][2][0] = sRight; 3953ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[1][2][1] = tTop; 3963ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 397e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[2][0][0] = clip_x1; 398e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[2][0][1] = clip_y1; 3993ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[2][2][0] = sRight; 4003ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[2][2][1] = tBot; 4013ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 402e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[3][0][0] = clip_x0; 403e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[3][0][1] = clip_y1; 4043ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[3][2][0] = sLeft; 4053ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[3][2][1] = tBot; 4063ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4073ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* same for all verts: */ 4083ece9ace540447c4f0d340a6f9f27980b54f83fbBrian for (i = 0; i < 4; i++) { 4093ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][0][2] = z; 4103ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][0][3] = 1.0; 4113ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][1][0] = color[0]; 4123ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][1][1] = color[1]; 4133ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][1][2] = color[2]; 4143ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][1][3] = color[3]; 4153ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][2][2] = 0.0; /*R*/ 4163ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][2][3] = 1.0; /*Q*/ 4173ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 4183ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4193ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* put vertex data into vbuf */ 420d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell { 421d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell char *buf = pipe_buffer_map(pipe->screen, 422d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell st->bitmap.vbuf, 423d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell PIPE_BUFFER_USAGE_CPU_WRITE); 424d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell 425d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell memcpy(buf + st->bitmap.vbuf_slot * sizeof st->bitmap.vertices, 426d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell st->bitmap.vertices, 427d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell sizeof st->bitmap.vertices); 428d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell 429d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell pipe_buffer_unmap(pipe->screen, st->bitmap.vbuf); 430d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell } 431d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell 432d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell return st->bitmap.vbuf_slot++ * sizeof st->bitmap.vertices; 4333ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 4343ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4353ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4363ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4373ece9ace540447c4f0d340a6f9f27980b54f83fbBrian/** 4383ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Render a glBitmap by drawing a textured quad 4393ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 4403ece9ace540447c4f0d340a6f9f27980b54f83fbBrianstatic void 4413ece9ace540447c4f0d340a6f9f27980b54f83fbBriandraw_bitmap_quad(GLcontext *ctx, GLint x, GLint y, GLfloat z, 4423ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLsizei width, GLsizei height, 443318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul struct pipe_texture *pt, 444318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul const GLfloat *color) 4453ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 4463ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct st_context *st = ctx->st; 4473ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_context *pipe = ctx->st->pipe; 4483ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct cso_context *cso = ctx->st->cso_context; 449c62b197b528293abb56b099503344e3cdd7d6c40Brian struct st_fragment_program *stfp; 4503ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLuint maxSize; 451d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell GLuint offset; 4523ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 453c62b197b528293abb56b099503344e3cdd7d6c40Brian stfp = combined_bitmap_fragment_program(ctx); 454c62b197b528293abb56b099503344e3cdd7d6c40Brian 455277089b81ae498f598efdc74fafda9873864ee54Brian Paul /* As an optimization, Mesa's fragment programs will sometimes get the 456277089b81ae498f598efdc74fafda9873864ee54Brian Paul * primary color from a statevar/constant rather than a varying variable. 457277089b81ae498f598efdc74fafda9873864ee54Brian Paul * when that's the case, we need to ensure that we use the 'color' 458277089b81ae498f598efdc74fafda9873864ee54Brian Paul * parameter and not the current attribute color (which may have changed 459277089b81ae498f598efdc74fafda9873864ee54Brian Paul * through glRasterPos and state validation. 460277089b81ae498f598efdc74fafda9873864ee54Brian Paul * So, we force the proper color here. Not elegant, but it works. 461277089b81ae498f598efdc74fafda9873864ee54Brian Paul */ 462277089b81ae498f598efdc74fafda9873864ee54Brian Paul { 463277089b81ae498f598efdc74fafda9873864ee54Brian Paul GLfloat colorSave[4]; 464277089b81ae498f598efdc74fafda9873864ee54Brian Paul COPY_4V(colorSave, ctx->Current.Attrib[VERT_ATTRIB_COLOR0]); 465277089b81ae498f598efdc74fafda9873864ee54Brian Paul COPY_4V(ctx->Current.Attrib[VERT_ATTRIB_COLOR0], color); 466277089b81ae498f598efdc74fafda9873864ee54Brian Paul st_upload_constants(st, stfp->Base.Base.Parameters, PIPE_SHADER_FRAGMENT); 467277089b81ae498f598efdc74fafda9873864ee54Brian Paul COPY_4V(ctx->Current.Attrib[VERT_ATTRIB_COLOR0], colorSave); 468277089b81ae498f598efdc74fafda9873864ee54Brian Paul } 469277089b81ae498f598efdc74fafda9873864ee54Brian Paul 470277089b81ae498f598efdc74fafda9873864ee54Brian Paul 4713ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* limit checks */ 472c62b197b528293abb56b099503344e3cdd7d6c40Brian /* XXX if the bitmap is larger than the max texture size, break 4733ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * it up into chunks. 4743ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 4753ece9ace540447c4f0d340a6f9f27980b54f83fbBrian maxSize = 1 << (pipe->screen->get_param(pipe->screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS) - 1); 47653174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca assert(width <= (GLsizei)maxSize); 47753174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca assert(height <= (GLsizei)maxSize); 4783ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4793ece9ace540447c4f0d340a6f9f27980b54f83fbBrian cso_save_rasterizer(cso); 480d246274b9c48c01b61490f0a76c22aebb8e64e1eBrian Paul cso_save_samplers(cso); 481ddc0f91bfc571dcd05c13f094c179b4250e53bccBrian cso_save_sampler_textures(cso); 482e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian cso_save_viewport(cso); 48365efe807b9067aa07b382e3c4d9cea6222c5fc6bMichel Dänzer cso_save_fragment_shader(cso); 48465efe807b9067aa07b382e3c4d9cea6222c5fc6bMichel Dänzer cso_save_vertex_shader(cso); 4853ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4863ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* rasterizer state: just scissor */ 487e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.rasterizer.scissor = ctx->Scissor.Enabled; 488e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian cso_set_rasterizer(cso, &st->bitmap.rasterizer); 4893ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4903ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* fragment shader state: TEX lookup program */ 49101dfa6cde157321f565bab949f23f367ed20fa0eKeith Whitwell cso_set_fragment_shader_handle(cso, stfp->driver_shader); 4923ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4933ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* vertex shader state: position + texcoord pass-through */ 49401dfa6cde157321f565bab949f23f367ed20fa0eKeith Whitwell cso_set_vertex_shader_handle(cso, st->bitmap.vs); 4953ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 49633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul /* user samplers, plus our bitmap sampler */ 49733f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul { 49833f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul struct pipe_sampler_state *samplers[PIPE_MAX_SAMPLERS]; 49933f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul uint num = MAX2(stfp->bitmap_sampler + 1, st->state.num_samplers); 50033f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul uint i; 50133f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul for (i = 0; i < st->state.num_samplers; i++) { 50233f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul samplers[i] = &st->state.samplers[i]; 50333f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul } 50433f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul samplers[stfp->bitmap_sampler] = &st->bitmap.sampler; 505277089b81ae498f598efdc74fafda9873864ee54Brian Paul cso_set_samplers(cso, num, (const struct pipe_sampler_state **) samplers); 506277089b81ae498f598efdc74fafda9873864ee54Brian Paul } 50733f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul 50833f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul /* user textures, plus the bitmap texture */ 50933f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul { 51033f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul struct pipe_texture *textures[PIPE_MAX_SAMPLERS]; 51133f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul uint num = MAX2(stfp->bitmap_sampler + 1, st->state.num_textures); 51233f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul memcpy(textures, st->state.sampler_texture, sizeof(textures)); 51333f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul textures[stfp->bitmap_sampler] = pt; 51433f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul cso_set_sampler_textures(cso, num, textures); 51533f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul } 516e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian 517e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian /* viewport state: viewport matching window dims */ 5183ece9ace540447c4f0d340a6f9f27980b54f83fbBrian { 519e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const struct gl_framebuffer *fb = st->ctx->DrawBuffer; 520e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const GLboolean invert = (st_fb_orientation(fb) == Y_0_TOP); 52153174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat width = (GLfloat)fb->Width; 52253174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat height = (GLfloat)fb->Height; 523e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian struct pipe_viewport_state vp; 5245c1a78b7a85d23ad1358b34d03a0002a19483655José Fonseca vp.scale[0] = 0.5f * width; 5255c1a78b7a85d23ad1358b34d03a0002a19483655José Fonseca vp.scale[1] = height * (invert ? -0.5f : 0.5f); 5265c1a78b7a85d23ad1358b34d03a0002a19483655José Fonseca vp.scale[2] = 1.0f; 5275c1a78b7a85d23ad1358b34d03a0002a19483655José Fonseca vp.scale[3] = 1.0f; 5285c1a78b7a85d23ad1358b34d03a0002a19483655José Fonseca vp.translate[0] = 0.5f * width; 5295c1a78b7a85d23ad1358b34d03a0002a19483655José Fonseca vp.translate[1] = 0.5f * height; 5305c1a78b7a85d23ad1358b34d03a0002a19483655José Fonseca vp.translate[2] = 0.0f; 5315c1a78b7a85d23ad1358b34d03a0002a19483655José Fonseca vp.translate[3] = 0.0f; 532e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian cso_set_viewport(cso, &vp); 5333ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 5343ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 5353ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* draw textured quad */ 536d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell offset = setup_bitmap_vertex_data(st, x, y, width, height, 537d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell ctx->Current.RasterPos[2], 538d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell color); 5393ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 540d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell util_draw_vertex_buffer(pipe, st->bitmap.vbuf, offset, 5413ece9ace540447c4f0d340a6f9f27980b54f83fbBrian PIPE_PRIM_TRIANGLE_FAN, 5423ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4, /* verts */ 5433ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3); /* attribs/vert */ 5443ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 5453ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 5463ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* restore state */ 5473ece9ace540447c4f0d340a6f9f27980b54f83fbBrian cso_restore_rasterizer(cso); 5483ece9ace540447c4f0d340a6f9f27980b54f83fbBrian cso_restore_samplers(cso); 549ddc0f91bfc571dcd05c13f094c179b4250e53bccBrian cso_restore_sampler_textures(cso); 550e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian cso_restore_viewport(cso); 551fd4acd6fdaaad4871327d081f5501680ed9da2edMichel Dänzer cso_restore_fragment_shader(cso); 552fd4acd6fdaaad4871327d081f5501680ed9da2edMichel Dänzer cso_restore_vertex_shader(cso); 5533ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 5543ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 5553ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 556737e34aee598f32f8ff078ba823ed149b282ebc8Brianstatic void 557737e34aee598f32f8ff078ba823ed149b282ebc8Brianreset_cache(struct st_context *st) 558737e34aee598f32f8ff078ba823ed149b282ebc8Brian{ 559d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul struct pipe_context *pipe = st->pipe; 560d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul struct pipe_screen *screen = pipe->screen; 561d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul struct bitmap_cache *cache = st->bitmap.cache; 562737e34aee598f32f8ff078ba823ed149b282ebc8Brian 563d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul //memset(cache->buffer, 0xff, sizeof(cache->buffer)); 564d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->empty = GL_TRUE; 565737e34aee598f32f8ff078ba823ed149b282ebc8Brian 566d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->xmin = 1000000; 567d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->xmax = -1000000; 568d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->ymin = 1000000; 569d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->ymax = -1000000; 5703ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 5714617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer if (cache->trans) 5724617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer screen->tex_transfer_release(screen, &cache->trans); 5732212c214f1890091c102d4cb3c69ec2df2132322Brian Paul 574d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul assert(!cache->texture); 575c62b197b528293abb56b099503344e3cdd7d6c40Brian 576d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul /* allocate a new texture */ 577d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->texture = st_texture_create(st, PIPE_TEXTURE_2D, 578d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul st->bitmap.tex_format, 0, 579d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul BITMAP_CACHE_WIDTH, BITMAP_CACHE_HEIGHT, 580a73ae3d5eb8419feab5aea26573aa41b72f941ebKeith Whitwell 1, 0, 581a73ae3d5eb8419feab5aea26573aa41b72f941ebKeith Whitwell PIPE_TEXTURE_USAGE_SAMPLER); 582c62b197b528293abb56b099503344e3cdd7d6c40Brian 5834617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer /* Map the texture transfer. 584d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul * Subsequent glBitmap calls will write into the texture image. 585d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul */ 5864617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer cache->trans = screen->get_tex_transfer(screen, cache->texture, 0, 0, 0, 5874617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer PIPE_TRANSFER_WRITE, 0, 0, 5884617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer BITMAP_CACHE_WIDTH, 5894617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer BITMAP_CACHE_HEIGHT); 5904617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer cache->buffer = screen->transfer_map(screen, cache->trans); 591d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul 592d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul /* init image to all 0xff */ 5934617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer memset(cache->buffer, 0xff, cache->trans->stride * BITMAP_CACHE_HEIGHT); 594c62b197b528293abb56b099503344e3cdd7d6c40Brian} 595c62b197b528293abb56b099503344e3cdd7d6c40Brian 596c62b197b528293abb56b099503344e3cdd7d6c40Brian 597c62b197b528293abb56b099503344e3cdd7d6c40Brian/** 598c62b197b528293abb56b099503344e3cdd7d6c40Brian * If there's anything in the bitmap cache, draw/flush it now. 599c62b197b528293abb56b099503344e3cdd7d6c40Brian */ 600c62b197b528293abb56b099503344e3cdd7d6c40Brianvoid 601c62b197b528293abb56b099503344e3cdd7d6c40Brianst_flush_bitmap_cache(struct st_context *st) 602c62b197b528293abb56b099503344e3cdd7d6c40Brian{ 603c62b197b528293abb56b099503344e3cdd7d6c40Brian if (!st->bitmap.cache->empty) { 60444a7bd0019b9af9ff01336df0aa6eb206f5dc2e9Michel Dänzer struct bitmap_cache *cache = st->bitmap.cache; 60544a7bd0019b9af9ff01336df0aa6eb206f5dc2e9Michel Dänzer 606985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul if (st->ctx->DrawBuffer) { 607985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul struct pipe_context *pipe = st->pipe; 608c9ed86a96483063f3d6789ed16645a3dca77d726Keith Whitwell struct pipe_screen *screen = pipe->screen; 609985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul 610985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul assert(cache->xmin <= cache->xmax); 611d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell 612d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell/* printf("flush size %d x %d at %d, %d\n", 613985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul cache->xmax - cache->xmin, 614985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul cache->ymax - cache->ymin, 615985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul cache->xpos, cache->ypos); 616d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell*/ 617985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul 6184617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer /* The texture transfer has been mapped until now. 6194617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer * So unmap and release the texture transfer before drawing. 6206fb40092261b891b78e504f453fddf041f9efac6Brian Paul */ 6214617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer screen->transfer_unmap(screen, cache->trans); 6222212c214f1890091c102d4cb3c69ec2df2132322Brian Paul cache->buffer = NULL; 6232212c214f1890091c102d4cb3c69ec2df2132322Brian Paul 6244617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer screen->tex_transfer_release(screen, &cache->trans); 6256fb40092261b891b78e504f453fddf041f9efac6Brian Paul 626985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul draw_bitmap_quad(st->ctx, 627985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul cache->xpos, 628985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul cache->ypos, 629985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul st->ctx->Current.RasterPos[2], 630985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul BITMAP_CACHE_WIDTH, BITMAP_CACHE_HEIGHT, 631318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul cache->texture, 632318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul cache->color); 633985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul } 63444a7bd0019b9af9ff01336df0aa6eb206f5dc2e9Michel Dänzer 63544a7bd0019b9af9ff01336df0aa6eb206f5dc2e9Michel Dänzer /* release/free the texture */ 63644a7bd0019b9af9ff01336df0aa6eb206f5dc2e9Michel Dänzer pipe_texture_reference(&cache->texture, NULL); 63744a7bd0019b9af9ff01336df0aa6eb206f5dc2e9Michel Dänzer 638737e34aee598f32f8ff078ba823ed149b282ebc8Brian reset_cache(st); 639c62b197b528293abb56b099503344e3cdd7d6c40Brian } 640c62b197b528293abb56b099503344e3cdd7d6c40Brian} 641c62b197b528293abb56b099503344e3cdd7d6c40Brian 642d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell/* Flush bitmap cache and release vertex buffer. 643d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell */ 644d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwellvoid 645d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwellst_flush_bitmap( struct st_context *st ) 646d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell{ 647d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell st_flush_bitmap_cache(st); 648d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell 649d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell /* Release vertex buffer to avoid synchronous rendering if we were 650d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell * to map it in the next frame. 651d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell */ 652d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell pipe_buffer_reference(st->pipe->screen, &st->bitmap.vbuf, NULL); 653d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell st->bitmap.vbuf_slot = 0; 654d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell} 655d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell 656c62b197b528293abb56b099503344e3cdd7d6c40Brian 657c62b197b528293abb56b099503344e3cdd7d6c40Brian/** 658c62b197b528293abb56b099503344e3cdd7d6c40Brian * Try to accumulate this glBitmap call in the bitmap cache. 659c62b197b528293abb56b099503344e3cdd7d6c40Brian * \return GL_TRUE for success, GL_FALSE if bitmap is too large, etc. 660c62b197b528293abb56b099503344e3cdd7d6c40Brian */ 661c62b197b528293abb56b099503344e3cdd7d6c40Brianstatic GLboolean 662c62b197b528293abb56b099503344e3cdd7d6c40Brianaccum_bitmap(struct st_context *st, 663c62b197b528293abb56b099503344e3cdd7d6c40Brian GLint x, GLint y, GLsizei width, GLsizei height, 664c62b197b528293abb56b099503344e3cdd7d6c40Brian const struct gl_pixelstore_attrib *unpack, 665c62b197b528293abb56b099503344e3cdd7d6c40Brian const GLubyte *bitmap ) 666c62b197b528293abb56b099503344e3cdd7d6c40Brian{ 667737e34aee598f32f8ff078ba823ed149b282ebc8Brian struct bitmap_cache *cache = st->bitmap.cache; 668c62b197b528293abb56b099503344e3cdd7d6c40Brian int px = -999, py; 669c62b197b528293abb56b099503344e3cdd7d6c40Brian 670c62b197b528293abb56b099503344e3cdd7d6c40Brian if (width > BITMAP_CACHE_WIDTH || 671c62b197b528293abb56b099503344e3cdd7d6c40Brian height > BITMAP_CACHE_HEIGHT) 672c62b197b528293abb56b099503344e3cdd7d6c40Brian return GL_FALSE; /* too big to cache */ 673c62b197b528293abb56b099503344e3cdd7d6c40Brian 674737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (!cache->empty) { 675737e34aee598f32f8ff078ba823ed149b282ebc8Brian px = x - cache->xpos; /* pos in buffer */ 676737e34aee598f32f8ff078ba823ed149b282ebc8Brian py = y - cache->ypos; 677c62b197b528293abb56b099503344e3cdd7d6c40Brian if (px < 0 || px + width > BITMAP_CACHE_WIDTH || 678318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul py < 0 || py + height > BITMAP_CACHE_HEIGHT || 679318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul !TEST_EQ_4V(st->ctx->Current.RasterColor, cache->color)) { 680318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul /* This bitmap would extend beyond cache bounds, or the bitmap 681318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul * color is changing 682c62b197b528293abb56b099503344e3cdd7d6c40Brian * so flush and continue. 683c62b197b528293abb56b099503344e3cdd7d6c40Brian */ 684c62b197b528293abb56b099503344e3cdd7d6c40Brian st_flush_bitmap_cache(st); 685c62b197b528293abb56b099503344e3cdd7d6c40Brian } 686c62b197b528293abb56b099503344e3cdd7d6c40Brian } 687c62b197b528293abb56b099503344e3cdd7d6c40Brian 688737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (cache->empty) { 689c62b197b528293abb56b099503344e3cdd7d6c40Brian /* Initialize. Center bitmap vertically in the buffer. */ 690c62b197b528293abb56b099503344e3cdd7d6c40Brian px = 0; 691c62b197b528293abb56b099503344e3cdd7d6c40Brian py = (BITMAP_CACHE_HEIGHT - height) / 2; 692737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->xpos = x; 693737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->ypos = y - py; 694737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->empty = GL_FALSE; 695318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul COPY_4FV(cache->color, st->ctx->Current.RasterColor); 696c62b197b528293abb56b099503344e3cdd7d6c40Brian } 697c62b197b528293abb56b099503344e3cdd7d6c40Brian 698c62b197b528293abb56b099503344e3cdd7d6c40Brian assert(px != -999); 699c62b197b528293abb56b099503344e3cdd7d6c40Brian 700737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (x < cache->xmin) 701737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->xmin = x; 702737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (y < cache->ymin) 703737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->ymin = y; 704737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (x + width > cache->xmax) 705737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->xmax = x + width; 706737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (y + height > cache->ymax) 707737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->ymax = y + height; 708737e34aee598f32f8ff078ba823ed149b282ebc8Brian 7097146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul unpack_bitmap(st, px, py, width, height, unpack, bitmap, 7107146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul cache->buffer, BITMAP_CACHE_WIDTH); 711c62b197b528293abb56b099503344e3cdd7d6c40Brian 712c62b197b528293abb56b099503344e3cdd7d6c40Brian return GL_TRUE; /* accumulated */ 713c62b197b528293abb56b099503344e3cdd7d6c40Brian} 714c62b197b528293abb56b099503344e3cdd7d6c40Brian 715c62b197b528293abb56b099503344e3cdd7d6c40Brian 716c62b197b528293abb56b099503344e3cdd7d6c40Brian 717c62b197b528293abb56b099503344e3cdd7d6c40Brian/** 718c62b197b528293abb56b099503344e3cdd7d6c40Brian * Called via ctx->Driver.Bitmap() 719c62b197b528293abb56b099503344e3cdd7d6c40Brian */ 720c62b197b528293abb56b099503344e3cdd7d6c40Brianstatic void 7213ece9ace540447c4f0d340a6f9f27980b54f83fbBrianst_Bitmap(GLcontext *ctx, GLint x, GLint y, GLsizei width, GLsizei height, 7223ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const struct gl_pixelstore_attrib *unpack, const GLubyte *bitmap ) 7233ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 7243ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct st_context *st = ctx->st; 7253ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_texture *pt; 7263ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 72729d9f6b0d263b6ea2f89ea955d53d2671d9a6e43Brian Paul if (width == 0 || height == 0) 72829d9f6b0d263b6ea2f89ea955d53d2671d9a6e43Brian Paul return; 72929d9f6b0d263b6ea2f89ea955d53d2671d9a6e43Brian Paul 7301ecb2e4a7a5881d5a98679b421d78fd11c729ebcBrian Paul st_validate_state(st); 7311ecb2e4a7a5881d5a98679b421d78fd11c729ebcBrian Paul 7323ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (!st->bitmap.vs) { 7333ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* create pass-through vertex shader now */ 7343ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const uint semantic_names[] = { TGSI_SEMANTIC_POSITION, 7353ece9ace540447c4f0d340a6f9f27980b54f83fbBrian TGSI_SEMANTIC_COLOR, 7363ece9ace540447c4f0d340a6f9f27980b54f83fbBrian TGSI_SEMANTIC_GENERIC }; 7373ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const uint semantic_indexes[] = { 0, 0, 0 }; 7383ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vs = util_make_vertex_passthrough_shader(st->pipe, 3, 7393ece9ace540447c4f0d340a6f9f27980b54f83fbBrian semantic_names, 7406f8286163c79a8187c2912a9b673a6f11f4f60c6Brian semantic_indexes, 7416f8286163c79a8187c2912a9b673a6f11f4f60c6Brian &st->bitmap.vert_shader); 7423ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 7433ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 744c62b197b528293abb56b099503344e3cdd7d6c40Brian if (UseBitmapCache && accum_bitmap(st, x, y, width, height, unpack, bitmap)) 745c62b197b528293abb56b099503344e3cdd7d6c40Brian return; 7463ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 7473ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pt = make_bitmap_texture(ctx, width, height, unpack, bitmap); 7483ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (pt) { 7496f8286163c79a8187c2912a9b673a6f11f4f60c6Brian assert(pt->target == PIPE_TEXTURE_2D); 7503ece9ace540447c4f0d340a6f9f27980b54f83fbBrian draw_bitmap_quad(ctx, x, y, ctx->Current.RasterPos[2], 751318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul width, height, pt, 752318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul st->ctx->Current.RasterColor); 753d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul /* release/free the texture */ 7543ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pipe_texture_reference(&pt, NULL); 7553ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 7563ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 7573ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 7583ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 759c62b197b528293abb56b099503344e3cdd7d6c40Brian/** Per-context init */ 760c62b197b528293abb56b099503344e3cdd7d6c40Brianvoid 761c62b197b528293abb56b099503344e3cdd7d6c40Brianst_init_bitmap_functions(struct dd_function_table *functions) 7623ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 7633ece9ace540447c4f0d340a6f9f27980b54f83fbBrian functions->Bitmap = st_Bitmap; 7643ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 7653ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 7663ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 767c62b197b528293abb56b099503344e3cdd7d6c40Brian/** Per-context init */ 768c62b197b528293abb56b099503344e3cdd7d6c40Brianvoid 769c62b197b528293abb56b099503344e3cdd7d6c40Brianst_init_bitmap(struct st_context *st) 770c62b197b528293abb56b099503344e3cdd7d6c40Brian{ 771e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian struct pipe_sampler_state *sampler = &st->bitmap.sampler; 772eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul struct pipe_context *pipe = st->pipe; 773eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul struct pipe_screen *screen = pipe->screen; 774e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian 775e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian /* init sampler state once */ 776e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian memset(sampler, 0, sizeof(*sampler)); 777e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->wrap_s = PIPE_TEX_WRAP_CLAMP; 778e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->wrap_t = PIPE_TEX_WRAP_CLAMP; 779e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->wrap_r = PIPE_TEX_WRAP_CLAMP; 780e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->min_img_filter = PIPE_TEX_FILTER_NEAREST; 781e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->min_mip_filter = PIPE_TEX_MIPFILTER_NONE; 782e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->mag_img_filter = PIPE_TEX_FILTER_NEAREST; 783e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->normalized_coords = 1; 784e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian 7856a382250a10e7022e93b6be6fe4657445d85a568Brian /* init baseline rasterizer state once */ 786e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian memset(&st->bitmap.rasterizer, 0, sizeof(st->bitmap.rasterizer)); 787124e1345c9ba4abe17bb04b8781ec0fe803eda7bBrian st->bitmap.rasterizer.gl_rasterization_rules = 1; 7886a382250a10e7022e93b6be6fe4657445d85a568Brian st->bitmap.rasterizer.bypass_vs = 1; 789e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian 790eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul /* find a usable texture format */ 7918aafc03b260ab8923f1b373f7effa75bcdb40a72José Fonseca if (screen->is_format_supported(screen, PIPE_FORMAT_I8_UNORM, PIPE_TEXTURE_2D, 7928aafc03b260ab8923f1b373f7effa75bcdb40a72José Fonseca PIPE_TEXTURE_USAGE_SAMPLER, 0)) { 79354f94a790e4488445347abcff9a636a9c440d7f9Brian Paul st->bitmap.tex_format = PIPE_FORMAT_I8_UNORM; 794eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul } 795eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul else { 796eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul /* XXX support more formats */ 797eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul assert(0); 798eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul } 799eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul 800d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul /* alloc bitmap cache object */ 801d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul st->bitmap.cache = CALLOC_STRUCT(bitmap_cache); 802d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul 803d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul reset_cache(st); 804c62b197b528293abb56b099503344e3cdd7d6c40Brian} 805c62b197b528293abb56b099503344e3cdd7d6c40Brian 806c62b197b528293abb56b099503344e3cdd7d6c40Brian 807c62b197b528293abb56b099503344e3cdd7d6c40Brian/** Per-context tear-down */ 8083ece9ace540447c4f0d340a6f9f27980b54f83fbBrianvoid 8093ece9ace540447c4f0d340a6f9f27980b54f83fbBrianst_destroy_bitmap(struct st_context *st) 8103ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 8113ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_context *pipe = st->pipe; 812b4219e35e2de783ca03e53c311a8a56f8b633aa1Brian Paul struct pipe_screen *screen = pipe->screen; 813b4219e35e2de783ca03e53c311a8a56f8b633aa1Brian Paul struct bitmap_cache *cache = st->bitmap.cache; 814b4219e35e2de783ca03e53c311a8a56f8b633aa1Brian Paul 8154617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer screen->transfer_unmap(screen, cache->trans); 8164617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer screen->tex_transfer_release(screen, &cache->trans); 8173ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 8183ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (st->bitmap.vs) { 819a770d40c3d4977e2c134661b5d8facaea446b6eaBrian Paul cso_delete_vertex_shader(st->cso_context, st->bitmap.vs); 8203ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vs = NULL; 8213ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 822c62b197b528293abb56b099503344e3cdd7d6c40Brian 8233ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (st->bitmap.vbuf) { 8241c6fe6564be28ac3e72fa8e6b1616ae0e22a7bc7José Fonseca pipe_buffer_reference(pipe->screen, &st->bitmap.vbuf, NULL); 8253ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vbuf = NULL; 8263ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 8273ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 828c62b197b528293abb56b099503344e3cdd7d6c40Brian if (st->bitmap.cache) { 829c62b197b528293abb56b099503344e3cdd7d6c40Brian pipe_texture_release(&st->bitmap.cache->texture); 830c62b197b528293abb56b099503344e3cdd7d6c40Brian FREE(st->bitmap.cache); 831c62b197b528293abb56b099503344e3cdd7d6c40Brian st->bitmap.cache = NULL; 832c62b197b528293abb56b099503344e3cdd7d6c40Brian } 833c62b197b528293abb56b099503344e3cdd7d6c40Brian} 834