st_cb_bitmap.c revision 33f3938d2d6340b31d758c96bd35f858c6c8267d
13ece9ace540447c4f0d340a6f9f27980b54f83fbBrian/************************************************************************** 23ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * 33ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. 43ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * All Rights Reserved. 53ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * 63ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Permission is hereby granted, free of charge, to any person obtaining a 73ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * copy of this software and associated documentation files (the 83ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * "Software"), to deal in the Software without restriction, including 93ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * without limitation the rights to use, copy, modify, merge, publish, 103ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * distribute, sub license, and/or sell copies of the Software, and to 113ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * permit persons to whom the Software is furnished to do so, subject to 123ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * the following conditions: 133ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * 143ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * The above copyright notice and this permission notice (including the 153ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * next paragraph) shall be included in all copies or substantial portions 163ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * of the Software. 173ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * 183ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 193ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 203ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 213ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR 223ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 233ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 243ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 253ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * 263ece9ace540447c4f0d340a6f9f27980b54f83fbBrian **************************************************************************/ 273ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 283ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* 293ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Authors: 303ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Brian Paul 313ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 323ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 333ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "main/imports.h" 343ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "main/image.h" 35f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul#include "main/bufferobj.h" 363ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "main/macros.h" 373ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "main/texformat.h" 383ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "shader/program.h" 393ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "shader/prog_parameter.h" 403ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "shader/prog_print.h" 413ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 423ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "st_context.h" 433ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "st_atom.h" 443ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "st_atom_constbuf.h" 453ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "st_program.h" 463ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "st_cb_bitmap.h" 4722a3d022542fed267d48b48a44e10226d55c8afdBrian Paul#include "st_cb_program.h" 483ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "st_mesa_to_tgsi.h" 493ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "st_texture.h" 503ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "pipe/p_context.h" 513ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "pipe/p_defines.h" 523ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "pipe/p_inlines.h" 533ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "pipe/p_winsys.h" 543ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "util/p_tile.h" 553ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "util/u_draw_quad.h" 563ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "util/u_simple_shaders.h" 573ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "shader/prog_instruction.h" 583ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "cso_cache/cso_context.h" 593ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 603ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 613ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 623ece9ace540447c4f0d340a6f9f27980b54f83fbBrian/** 636b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * glBitmaps are drawn as textured quads. The user's bitmap pattern 646b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * is stored in a texture image. An alpha8 texture format is used. 656b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * The fragment shader samples a bit (texel) from the texture, then 666b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * discards the fragment if the bit is off. 676b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * 686b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * Note that we actually store the inverse image of the bitmap to 696b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * simplify the fragment program. An "on" bit gets stored as texel=0x0 706b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * and an "off" bit is stored as texel=0xff. Then we kill the 716b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * fragment if the negated texel value is less than zero. 726b0be38a6cfecd2babc7175b0877bed522ca9f72Brian */ 736b0be38a6cfecd2babc7175b0877bed522ca9f72Brian 746b0be38a6cfecd2babc7175b0877bed522ca9f72Brian 756b0be38a6cfecd2babc7175b0877bed522ca9f72Brian/** 76c62b197b528293abb56b099503344e3cdd7d6c40Brian * The bitmap cache attempts to accumulate multiple glBitmap calls in a 77c62b197b528293abb56b099503344e3cdd7d6c40Brian * buffer which is then rendered en mass upon a flush, state change, etc. 78c62b197b528293abb56b099503344e3cdd7d6c40Brian * A wide, short buffer is used to target the common case of a series 79c62b197b528293abb56b099503344e3cdd7d6c40Brian * of glBitmap calls being used to draw text. 80c62b197b528293abb56b099503344e3cdd7d6c40Brian */ 817292db2138001b48bba006cc08e9ff7091d16559Brianstatic GLboolean UseBitmapCache = GL_TRUE; 82c62b197b528293abb56b099503344e3cdd7d6c40Brian 83c62b197b528293abb56b099503344e3cdd7d6c40Brian 84c62b197b528293abb56b099503344e3cdd7d6c40Brian#define BITMAP_CACHE_WIDTH 512 85c62b197b528293abb56b099503344e3cdd7d6c40Brian#define BITMAP_CACHE_HEIGHT 32 86c62b197b528293abb56b099503344e3cdd7d6c40Brian 87c62b197b528293abb56b099503344e3cdd7d6c40Brianstruct bitmap_cache 88c62b197b528293abb56b099503344e3cdd7d6c40Brian{ 89c62b197b528293abb56b099503344e3cdd7d6c40Brian /** Window pos to render the cached image */ 90c62b197b528293abb56b099503344e3cdd7d6c40Brian GLint xpos, ypos; 91737e34aee598f32f8ff078ba823ed149b282ebc8Brian /** Bounds of region used in window coords */ 92737e34aee598f32f8ff078ba823ed149b282ebc8Brian GLint xmin, ymin, xmax, ymax; 93c62b197b528293abb56b099503344e3cdd7d6c40Brian struct pipe_texture *texture; 94737e34aee598f32f8ff078ba823ed149b282ebc8Brian GLboolean empty; 95737e34aee598f32f8ff078ba823ed149b282ebc8Brian /** An I8 texture image: */ 96737e34aee598f32f8ff078ba823ed149b282ebc8Brian GLubyte buffer[BITMAP_CACHE_HEIGHT][BITMAP_CACHE_WIDTH]; 97c62b197b528293abb56b099503344e3cdd7d6c40Brian}; 98c62b197b528293abb56b099503344e3cdd7d6c40Brian 99c62b197b528293abb56b099503344e3cdd7d6c40Brian 100c62b197b528293abb56b099503344e3cdd7d6c40Brian 101c62b197b528293abb56b099503344e3cdd7d6c40Brian 102c62b197b528293abb56b099503344e3cdd7d6c40Brian/** 1033ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Make fragment program for glBitmap: 1043ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Sample the texture and kill the fragment if the bit is 0. 1053ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * This program will be combined with the user's fragment program. 1063ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 1073ece9ace540447c4f0d340a6f9f27980b54f83fbBrianstatic struct st_fragment_program * 10833f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paulmake_bitmap_fragment_program(GLcontext *ctx, GLuint samplerIndex) 1093ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 1103ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct st_fragment_program *stfp; 1113ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct gl_program *p; 1123ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLuint ic = 0; 1133ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1143ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p = ctx->Driver.NewProgram(ctx, GL_FRAGMENT_PROGRAM_ARB, 0); 1153ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (!p) 1163ece9ace540447c4f0d340a6f9f27980b54f83fbBrian return NULL; 1173ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1186b0be38a6cfecd2babc7175b0877bed522ca9f72Brian p->NumInstructions = 3; 1193ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1203ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions = _mesa_alloc_instructions(p->NumInstructions); 1213ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (!p->Instructions) { 1223ece9ace540447c4f0d340a6f9f27980b54f83fbBrian ctx->Driver.DeleteProgram(ctx, p); 1233ece9ace540447c4f0d340a6f9f27980b54f83fbBrian return NULL; 1243ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 1253ece9ace540447c4f0d340a6f9f27980b54f83fbBrian _mesa_init_instructions(p->Instructions, p->NumInstructions); 1263ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1273ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* TEX tmp0, fragment.texcoord[0], texture[0], 2D; */ 1283ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].Opcode = OPCODE_TEX; 1293ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].DstReg.File = PROGRAM_TEMPORARY; 1303ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].DstReg.Index = 0; 1313ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].SrcReg[0].File = PROGRAM_INPUT; 1323ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].SrcReg[0].Index = FRAG_ATTRIB_TEX0; 13333f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul p->Instructions[ic].TexSrcUnit = samplerIndex; 1343ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].TexSrcTarget = TEXTURE_2D_INDEX; 1353ece9ace540447c4f0d340a6f9f27980b54f83fbBrian ic++; 1363ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1376b0be38a6cfecd2babc7175b0877bed522ca9f72Brian /* KIL if -tmp0 < 0 # texel=0 -> keep / texel=0 -> discard */ 1383ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].Opcode = OPCODE_KIL; 1393ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].SrcReg[0].File = PROGRAM_TEMPORARY; 1403ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].SrcReg[0].Index = 0; 1416b0be38a6cfecd2babc7175b0877bed522ca9f72Brian p->Instructions[ic].SrcReg[0].NegateBase = NEGATE_XYZW; 1423ece9ace540447c4f0d340a6f9f27980b54f83fbBrian ic++; 1433ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1443ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* END; */ 1453ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic++].Opcode = OPCODE_END; 1463ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1473ece9ace540447c4f0d340a6f9f27980b54f83fbBrian assert(ic == p->NumInstructions); 1483ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1493ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->InputsRead = FRAG_BIT_TEX0; 1503ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->OutputsWritten = 0x0; 15133f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul p->SamplersUsed = (1 << samplerIndex); 1523ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1533ece9ace540447c4f0d340a6f9f27980b54f83fbBrian stfp = (struct st_fragment_program *) p; 1543ece9ace540447c4f0d340a6f9f27980b54f83fbBrian stfp->Base.UsesKill = GL_TRUE; 1553ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st_translate_fragment_program(ctx->st, stfp, NULL); 1563ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1573ece9ace540447c4f0d340a6f9f27980b54f83fbBrian return stfp; 1583ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 1593ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1603ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 16133f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paulstatic int 16233f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paulfind_free_bit(uint bitfield) 16333f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul{ 16433f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul int i; 16533f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul for (i = 0; i < 32; i++) { 16633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul if ((bitfield & (1 << i)) == 0) { 16733f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul return i; 16833f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul } 16933f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul } 17033f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul return -1; 17133f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul} 17233f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul 17333f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul 1743ece9ace540447c4f0d340a6f9f27980b54f83fbBrian/** 1753ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Combine basic bitmap fragment program with the user-defined program. 1763ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 1773ece9ace540447c4f0d340a6f9f27980b54f83fbBrianstatic struct st_fragment_program * 1783ece9ace540447c4f0d340a6f9f27980b54f83fbBriancombined_bitmap_fragment_program(GLcontext *ctx) 1793ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 1803ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct st_context *st = ctx->st; 18133f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul struct st_fragment_program *stfp = st->fp; 1823ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 18333f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul if (!stfp->bitmap_program) { 18433f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul /* 18533f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul * Generate new program which is the user-defined program prefixed 18633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul * with the bitmap sampler/kill instructions. 1873ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 18833f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul struct st_fragment_program *bitmap_prog; 18933f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul uint sampler; 1903ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 19133f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul sampler = find_free_bit(st->fp->Base.Base.SamplersUsed); 19233f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul bitmap_prog = make_bitmap_fragment_program(ctx, sampler); 19333f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul 19433f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul stfp->bitmap_program = (struct st_fragment_program *) 19533f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul _mesa_combine_programs(ctx, 19633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul &bitmap_prog->Base.Base, &stfp->Base.Base); 19733f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul stfp->bitmap_program->bitmap_sampler = sampler; 1983ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#if 0 1993ece9ace540447c4f0d340a6f9f27980b54f83fbBrian { 20033f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul struct gl_program *p = &stfp->bitmap_program->Base.Base; 2013ece9ace540447c4f0d340a6f9f27980b54f83fbBrian printf("Combined bitmap program:\n"); 2023ece9ace540447c4f0d340a6f9f27980b54f83fbBrian _mesa_print_program(p); 2033ece9ace540447c4f0d340a6f9f27980b54f83fbBrian printf("InputsRead: 0x%x\n", p->InputsRead); 2043ece9ace540447c4f0d340a6f9f27980b54f83fbBrian printf("OutputsWritten: 0x%x\n", p->OutputsWritten); 2053ece9ace540447c4f0d340a6f9f27980b54f83fbBrian _mesa_print_parameter_list(p->Parameters); 2063ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2073ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#endif 2083ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2093ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* translate to TGSI tokens */ 21033f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul st_translate_fragment_program(st, stfp->bitmap_program, NULL); 2113ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2123ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2133ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* Ideally we'd have updated the pipe constants during the normal 2143ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * st/atom mechanism. But we can't since this is specific to glBitmap. 2153ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 2163ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st_upload_constants(st, stfp->Base.Base.Parameters, PIPE_SHADER_FRAGMENT); 2173ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 21833f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul return stfp->bitmap_program; 2193ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 2203ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2213ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2223ece9ace540447c4f0d340a6f9f27980b54f83fbBrian/** 2233ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Create a texture which represents a bitmap image. 2243ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 2253ece9ace540447c4f0d340a6f9f27980b54f83fbBrianstatic struct pipe_texture * 2263ece9ace540447c4f0d340a6f9f27980b54f83fbBrianmake_bitmap_texture(GLcontext *ctx, GLsizei width, GLsizei height, 2273ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const struct gl_pixelstore_attrib *unpack, 2283ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const GLubyte *bitmap) 2293ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 2303ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_context *pipe = ctx->st->pipe; 2313ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_screen *screen = pipe->screen; 2323ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_surface *surface; 2333ece9ace540447c4f0d340a6f9f27980b54f83fbBrian uint format = 0, cpp, comp; 2343ece9ace540447c4f0d340a6f9f27980b54f83fbBrian ubyte *dest; 2353ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_texture *pt; 2363ece9ace540447c4f0d340a6f9f27980b54f83fbBrian int row, col; 2373ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2383ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* find a texture format we know */ 2393ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (screen->is_format_supported( screen, PIPE_FORMAT_U_I8, PIPE_TEXTURE )) { 2403ece9ace540447c4f0d340a6f9f27980b54f83fbBrian format = PIPE_FORMAT_U_I8; 2413ece9ace540447c4f0d340a6f9f27980b54f83fbBrian cpp = 1; 2423ece9ace540447c4f0d340a6f9f27980b54f83fbBrian comp = 0; 2433ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2443ece9ace540447c4f0d340a6f9f27980b54f83fbBrian else if (screen->is_format_supported( screen, PIPE_FORMAT_A8R8G8B8_UNORM, PIPE_TEXTURE )) { 2453ece9ace540447c4f0d340a6f9f27980b54f83fbBrian format = PIPE_FORMAT_A8R8G8B8_UNORM; 2463ece9ace540447c4f0d340a6f9f27980b54f83fbBrian cpp = 4; 2473ece9ace540447c4f0d340a6f9f27980b54f83fbBrian comp = 3; /* alpha channel */ /*XXX little-endian dependency */ 2483ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2493ece9ace540447c4f0d340a6f9f27980b54f83fbBrian else { 2503ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* XXX support more formats */ 2513ece9ace540447c4f0d340a6f9f27980b54f83fbBrian assert( 0 ); 2523ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2533ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 254f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul /* PBO source... */ 255a39091bc5b68e4d4f5302f1d3f1a138798f54b77Brian bitmap = _mesa_map_bitmap_pbo(ctx, unpack, bitmap); 256f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul if (!bitmap) { 257f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul return NULL; 258f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul } 259f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul 2603ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /** 261f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul * Create texture to hold bitmap pattern. 2623ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 2633ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pt = st_texture_create(ctx->st, PIPE_TEXTURE_2D, format, 0, width, height, 2643ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1, 0); 265f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul if (!pt) { 266f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul _mesa_unmap_bitmap_pbo(ctx, unpack); 2673ece9ace540447c4f0d340a6f9f27980b54f83fbBrian return NULL; 2683ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2693ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2703ece9ace540447c4f0d340a6f9f27980b54f83fbBrian surface = screen->get_tex_surface(screen, pt, 0, 0, 0); 2713ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2723ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* map texture surface */ 2733ece9ace540447c4f0d340a6f9f27980b54f83fbBrian dest = pipe_surface_map(surface); 2743ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2753ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* Put image into texture surface. 2763ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Note that the image is actually going to be upside down in 2773ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * the texture. We deal with that with texcoords. 2783ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 2793ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2803ece9ace540447c4f0d340a6f9f27980b54f83fbBrian for (row = 0; row < height; row++) { 2813ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const GLubyte *src = (const GLubyte *) _mesa_image_address2d(unpack, 2823ece9ace540447c4f0d340a6f9f27980b54f83fbBrian bitmap, width, height, GL_COLOR_INDEX, GL_BITMAP, row, 0); 2833ece9ace540447c4f0d340a6f9f27980b54f83fbBrian ubyte *destRow = dest + row * surface->pitch * cpp; 2843ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2853ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (unpack->LsbFirst) { 2863ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* Lsb first */ 2873ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLubyte mask = 1U << (unpack->SkipPixels & 0x7); 2883ece9ace540447c4f0d340a6f9f27980b54f83fbBrian for (col = 0; col < width; col++) { 2893ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2903ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* set texel to 255 if bit is set */ 2916b0be38a6cfecd2babc7175b0877bed522ca9f72Brian destRow[comp] = (*src & mask) ? 0x0 : 0xff; 2923ece9ace540447c4f0d340a6f9f27980b54f83fbBrian destRow += cpp; 2933ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2943ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (mask == 128U) { 2953ece9ace540447c4f0d340a6f9f27980b54f83fbBrian src++; 2963ece9ace540447c4f0d340a6f9f27980b54f83fbBrian mask = 1U; 2973ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2983ece9ace540447c4f0d340a6f9f27980b54f83fbBrian else { 2993ece9ace540447c4f0d340a6f9f27980b54f83fbBrian mask = mask << 1; 3003ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 3013ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 3023ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3033ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* get ready for next row */ 3043ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (mask != 1) 3053ece9ace540447c4f0d340a6f9f27980b54f83fbBrian src++; 3063ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 3073ece9ace540447c4f0d340a6f9f27980b54f83fbBrian else { 3083ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* Msb first */ 3093ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLubyte mask = 128U >> (unpack->SkipPixels & 0x7); 3103ece9ace540447c4f0d340a6f9f27980b54f83fbBrian for (col = 0; col < width; col++) { 3113ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3123ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* set texel to 255 if bit is set */ 3136b0be38a6cfecd2babc7175b0877bed522ca9f72Brian destRow[comp] =(*src & mask) ? 0x0 : 0xff; 3143ece9ace540447c4f0d340a6f9f27980b54f83fbBrian destRow += cpp; 3153ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3163ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (mask == 1U) { 3173ece9ace540447c4f0d340a6f9f27980b54f83fbBrian src++; 3183ece9ace540447c4f0d340a6f9f27980b54f83fbBrian mask = 128U; 3193ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 3203ece9ace540447c4f0d340a6f9f27980b54f83fbBrian else { 3213ece9ace540447c4f0d340a6f9f27980b54f83fbBrian mask = mask >> 1; 3223ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 3233ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 3243ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3253ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* get ready for next row */ 3263ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (mask != 128) 3273ece9ace540447c4f0d340a6f9f27980b54f83fbBrian src++; 3283ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 3293ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3303ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } /* row */ 3313ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 332f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul _mesa_unmap_bitmap_pbo(ctx, unpack); 333f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul 3343ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* Release surface */ 3353ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pipe_surface_unmap(surface); 3363ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pipe_surface_reference(&surface, NULL); 3373ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pipe->texture_update(pipe, pt, 0, 0x1); 3383ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3393ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pt->format = format; 3403ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3413ece9ace540447c4f0d340a6f9f27980b54f83fbBrian return pt; 3423ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 3433ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3443ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3453ece9ace540447c4f0d340a6f9f27980b54f83fbBrianstatic void 3463ece9ace540447c4f0d340a6f9f27980b54f83fbBriansetup_bitmap_vertex_data(struct st_context *st, 3473ece9ace540447c4f0d340a6f9f27980b54f83fbBrian int x, int y, int width, int height, 3483ece9ace540447c4f0d340a6f9f27980b54f83fbBrian float z, const float color[4]) 3493ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 3503ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_context *pipe = st->pipe; 3513ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const struct gl_framebuffer *fb = st->ctx->DrawBuffer; 352e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const GLfloat fb_width = fb->Width; 353e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const GLfloat fb_height = fb->Height; 3543ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const GLfloat x0 = x; 3553ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const GLfloat x1 = x + width; 356e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const GLfloat y0 = y; 357e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const GLfloat y1 = y + height; 3583ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const GLfloat bias = st->bitmap_texcoord_bias; 3593ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const GLfloat xBias = bias / (x1-x0); 3603ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const GLfloat yBias = bias / (y1-y0); 3613ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const GLfloat sLeft = 0.0 + xBias, sRight = 1.0 + xBias; 362e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const GLfloat tTop = yBias, tBot = 1.0 - tTop - yBias; 363e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const GLfloat clip_x0 = x0 / fb_width * 2.0 - 1.0; 364e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const GLfloat clip_y0 = y0 / fb_height * 2.0 - 1.0; 365e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const GLfloat clip_x1 = x1 / fb_width * 2.0 - 1.0; 366e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const GLfloat clip_y1 = y1 / fb_height * 2.0 - 1.0; 3673ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLuint i; 3683ece9ace540447c4f0d340a6f9f27980b54f83fbBrian void *buf; 3693ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3703ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (!st->bitmap.vbuf) { 3713ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vbuf = pipe->winsys->buffer_create(pipe->winsys, 32, 3723ece9ace540447c4f0d340a6f9f27980b54f83fbBrian PIPE_BUFFER_USAGE_VERTEX, 3733ece9ace540447c4f0d340a6f9f27980b54f83fbBrian sizeof(st->bitmap.vertices)); 3743ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 3753ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 376e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian /* Positions are in clip coords since we need to do clipping in case 377e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian * the bitmap quad goes beyond the window bounds. 378e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian */ 379e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[0][0][0] = clip_x0; 380e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[0][0][1] = clip_y0; 3813ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[0][2][0] = sLeft; 3823ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[0][2][1] = tTop; 3833ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 384e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[1][0][0] = clip_x1; 385e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[1][0][1] = clip_y0; 3863ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[1][2][0] = sRight; 3873ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[1][2][1] = tTop; 3883ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 389e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[2][0][0] = clip_x1; 390e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[2][0][1] = clip_y1; 3913ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[2][2][0] = sRight; 3923ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[2][2][1] = tBot; 3933ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 394e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[3][0][0] = clip_x0; 395e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[3][0][1] = clip_y1; 3963ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[3][2][0] = sLeft; 3973ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[3][2][1] = tBot; 3983ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3993ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* same for all verts: */ 4003ece9ace540447c4f0d340a6f9f27980b54f83fbBrian for (i = 0; i < 4; i++) { 4013ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][0][2] = z; 4023ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][0][3] = 1.0; 4033ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][1][0] = color[0]; 4043ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][1][1] = color[1]; 4053ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][1][2] = color[2]; 4063ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][1][3] = color[3]; 4073ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][2][2] = 0.0; /*R*/ 4083ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][2][3] = 1.0; /*Q*/ 4093ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 4103ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4113ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* put vertex data into vbuf */ 4123ece9ace540447c4f0d340a6f9f27980b54f83fbBrian buf = pipe->winsys->buffer_map(pipe->winsys, st->bitmap.vbuf, 4133ece9ace540447c4f0d340a6f9f27980b54f83fbBrian PIPE_BUFFER_USAGE_CPU_WRITE); 4143ece9ace540447c4f0d340a6f9f27980b54f83fbBrian memcpy(buf, st->bitmap.vertices, sizeof(st->bitmap.vertices)); 4153ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pipe->winsys->buffer_unmap(pipe->winsys, st->bitmap.vbuf); 4163ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 4173ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4183ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4193ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4203ece9ace540447c4f0d340a6f9f27980b54f83fbBrian/** 4213ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Render a glBitmap by drawing a textured quad 4223ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 4233ece9ace540447c4f0d340a6f9f27980b54f83fbBrianstatic void 4243ece9ace540447c4f0d340a6f9f27980b54f83fbBriandraw_bitmap_quad(GLcontext *ctx, GLint x, GLint y, GLfloat z, 4253ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLsizei width, GLsizei height, 426c62b197b528293abb56b099503344e3cdd7d6c40Brian struct pipe_texture *pt) 4273ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 4283ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct st_context *st = ctx->st; 4293ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_context *pipe = ctx->st->pipe; 4303ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct cso_context *cso = ctx->st->cso_context; 431c62b197b528293abb56b099503344e3cdd7d6c40Brian struct st_fragment_program *stfp; 4323ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLuint maxSize; 4333ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 434c62b197b528293abb56b099503344e3cdd7d6c40Brian stfp = combined_bitmap_fragment_program(ctx); 435c62b197b528293abb56b099503344e3cdd7d6c40Brian 4363ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* limit checks */ 437c62b197b528293abb56b099503344e3cdd7d6c40Brian /* XXX if the bitmap is larger than the max texture size, break 4383ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * it up into chunks. 4393ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 4403ece9ace540447c4f0d340a6f9f27980b54f83fbBrian maxSize = 1 << (pipe->screen->get_param(pipe->screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS) - 1); 4413ece9ace540447c4f0d340a6f9f27980b54f83fbBrian assert(width <= maxSize); 4423ece9ace540447c4f0d340a6f9f27980b54f83fbBrian assert(height <= maxSize); 4433ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4443ece9ace540447c4f0d340a6f9f27980b54f83fbBrian cso_save_rasterizer(cso); 445d246274b9c48c01b61490f0a76c22aebb8e64e1eBrian Paul cso_save_samplers(cso); 446ddc0f91bfc571dcd05c13f094c179b4250e53bccBrian cso_save_sampler_textures(cso); 447e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian cso_save_viewport(cso); 44865efe807b9067aa07b382e3c4d9cea6222c5fc6bMichel Dänzer cso_save_fragment_shader(cso); 44965efe807b9067aa07b382e3c4d9cea6222c5fc6bMichel Dänzer cso_save_vertex_shader(cso); 4503ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4513ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* rasterizer state: just scissor */ 452e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.rasterizer.scissor = ctx->Scissor.Enabled; 453e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian cso_set_rasterizer(cso, &st->bitmap.rasterizer); 4543ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4553ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* fragment shader state: TEX lookup program */ 45601dfa6cde157321f565bab949f23f367ed20fa0eKeith Whitwell cso_set_fragment_shader_handle(cso, stfp->driver_shader); 4573ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4583ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* vertex shader state: position + texcoord pass-through */ 45901dfa6cde157321f565bab949f23f367ed20fa0eKeith Whitwell cso_set_vertex_shader_handle(cso, st->bitmap.vs); 4603ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 46133f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul /* user samplers, plus our bitmap sampler */ 46233f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul { 46333f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul struct pipe_sampler_state *samplers[PIPE_MAX_SAMPLERS]; 46433f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul uint num = MAX2(stfp->bitmap_sampler + 1, st->state.num_samplers); 46533f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul uint i; 46633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul for (i = 0; i < st->state.num_samplers; i++) { 46733f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul samplers[i] = &st->state.samplers[i]; 46833f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul } 46933f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul samplers[stfp->bitmap_sampler] = &st->bitmap.sampler; 47033f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul cso_set_samplers(cso, num, (const struct pipe_sampler_state **) samplers); } 47133f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul 47233f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul /* user textures, plus the bitmap texture */ 47333f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul { 47433f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul struct pipe_texture *textures[PIPE_MAX_SAMPLERS]; 47533f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul uint num = MAX2(stfp->bitmap_sampler + 1, st->state.num_textures); 47633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul memcpy(textures, st->state.sampler_texture, sizeof(textures)); 47733f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul textures[stfp->bitmap_sampler] = pt; 47833f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul cso_set_sampler_textures(cso, num, textures); 47933f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul } 480e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian 481e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian /* viewport state: viewport matching window dims */ 4823ece9ace540447c4f0d340a6f9f27980b54f83fbBrian { 483e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const struct gl_framebuffer *fb = st->ctx->DrawBuffer; 484e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const GLboolean invert = (st_fb_orientation(fb) == Y_0_TOP); 485e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const float width = fb->Width; 486e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const float height = fb->Height; 487e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian struct pipe_viewport_state vp; 488e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian vp.scale[0] = 0.5 * width; 489e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian vp.scale[1] = height * (invert ? -0.5 : 0.5); 490e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian vp.scale[2] = 1.0; 491e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian vp.scale[3] = 1.0; 492e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian vp.translate[0] = 0.5 * width; 493e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian vp.translate[1] = 0.5 * height; 494e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian vp.translate[2] = 0.0; 495e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian vp.translate[3] = 0.0; 496e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian cso_set_viewport(cso, &vp); 4973ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 4983ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4993ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* draw textured quad */ 5003ece9ace540447c4f0d340a6f9f27980b54f83fbBrian setup_bitmap_vertex_data(st, x, y, width, height, 5013ece9ace540447c4f0d340a6f9f27980b54f83fbBrian ctx->Current.RasterPos[2], 5023ece9ace540447c4f0d340a6f9f27980b54f83fbBrian ctx->Current.RasterColor); 5033ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 5043ece9ace540447c4f0d340a6f9f27980b54f83fbBrian util_draw_vertex_buffer(pipe, st->bitmap.vbuf, 5053ece9ace540447c4f0d340a6f9f27980b54f83fbBrian PIPE_PRIM_TRIANGLE_FAN, 5063ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4, /* verts */ 5073ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3); /* attribs/vert */ 5083ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 5093ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 5103ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* restore state */ 5113ece9ace540447c4f0d340a6f9f27980b54f83fbBrian cso_restore_rasterizer(cso); 5123ece9ace540447c4f0d340a6f9f27980b54f83fbBrian cso_restore_samplers(cso); 513ddc0f91bfc571dcd05c13f094c179b4250e53bccBrian cso_restore_sampler_textures(cso); 514e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian cso_restore_viewport(cso); 515fd4acd6fdaaad4871327d081f5501680ed9da2edMichel Dänzer cso_restore_fragment_shader(cso); 516fd4acd6fdaaad4871327d081f5501680ed9da2edMichel Dänzer cso_restore_vertex_shader(cso); 5173ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 5183ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 5193ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 520737e34aee598f32f8ff078ba823ed149b282ebc8Brianstatic void 521737e34aee598f32f8ff078ba823ed149b282ebc8Brianreset_cache(struct st_context *st) 522737e34aee598f32f8ff078ba823ed149b282ebc8Brian{ 5236b0be38a6cfecd2babc7175b0877bed522ca9f72Brian memset(st->bitmap.cache->buffer, 0xff, sizeof(st->bitmap.cache->buffer)); 524737e34aee598f32f8ff078ba823ed149b282ebc8Brian st->bitmap.cache->empty = GL_TRUE; 525737e34aee598f32f8ff078ba823ed149b282ebc8Brian 526737e34aee598f32f8ff078ba823ed149b282ebc8Brian st->bitmap.cache->xmin = 1000000; 527737e34aee598f32f8ff078ba823ed149b282ebc8Brian st->bitmap.cache->xmax = -1000000; 528737e34aee598f32f8ff078ba823ed149b282ebc8Brian st->bitmap.cache->ymin = 1000000; 529737e34aee598f32f8ff078ba823ed149b282ebc8Brian st->bitmap.cache->ymax = -1000000; 530737e34aee598f32f8ff078ba823ed149b282ebc8Brian} 531737e34aee598f32f8ff078ba823ed149b282ebc8Brian 5323ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 5333ece9ace540447c4f0d340a6f9f27980b54f83fbBrianstatic void 534c62b197b528293abb56b099503344e3cdd7d6c40Brianinit_bitmap_cache(struct st_context *st) 535c62b197b528293abb56b099503344e3cdd7d6c40Brian{ 536c62b197b528293abb56b099503344e3cdd7d6c40Brian struct pipe_context *pipe = st->pipe; 537c62b197b528293abb56b099503344e3cdd7d6c40Brian struct pipe_screen *screen = pipe->screen; 538c62b197b528293abb56b099503344e3cdd7d6c40Brian enum pipe_format format; 539c62b197b528293abb56b099503344e3cdd7d6c40Brian 540c62b197b528293abb56b099503344e3cdd7d6c40Brian st->bitmap.cache = CALLOC_STRUCT(bitmap_cache); 541c62b197b528293abb56b099503344e3cdd7d6c40Brian if (!st->bitmap.cache) 542c62b197b528293abb56b099503344e3cdd7d6c40Brian return; 543c62b197b528293abb56b099503344e3cdd7d6c40Brian 544c62b197b528293abb56b099503344e3cdd7d6c40Brian /* find a usable texture format */ 545c62b197b528293abb56b099503344e3cdd7d6c40Brian if (screen->is_format_supported(screen, PIPE_FORMAT_U_I8, PIPE_TEXTURE)) { 546c62b197b528293abb56b099503344e3cdd7d6c40Brian format = PIPE_FORMAT_U_I8; 547c62b197b528293abb56b099503344e3cdd7d6c40Brian } 548c62b197b528293abb56b099503344e3cdd7d6c40Brian else { 549c62b197b528293abb56b099503344e3cdd7d6c40Brian /* XXX support more formats */ 550c62b197b528293abb56b099503344e3cdd7d6c40Brian assert(0); 551c62b197b528293abb56b099503344e3cdd7d6c40Brian } 552c62b197b528293abb56b099503344e3cdd7d6c40Brian 553c62b197b528293abb56b099503344e3cdd7d6c40Brian st->bitmap.cache->texture 554c62b197b528293abb56b099503344e3cdd7d6c40Brian = st_texture_create(st, PIPE_TEXTURE_2D, format, 0, 555c62b197b528293abb56b099503344e3cdd7d6c40Brian BITMAP_CACHE_WIDTH, BITMAP_CACHE_HEIGHT, 1, 0); 556c62b197b528293abb56b099503344e3cdd7d6c40Brian if (!st->bitmap.cache->texture) { 557c62b197b528293abb56b099503344e3cdd7d6c40Brian FREE(st->bitmap.cache); 558c62b197b528293abb56b099503344e3cdd7d6c40Brian st->bitmap.cache = NULL; 559c62b197b528293abb56b099503344e3cdd7d6c40Brian return; 560c62b197b528293abb56b099503344e3cdd7d6c40Brian } 561c62b197b528293abb56b099503344e3cdd7d6c40Brian 562737e34aee598f32f8ff078ba823ed149b282ebc8Brian reset_cache(st); 563c62b197b528293abb56b099503344e3cdd7d6c40Brian} 564c62b197b528293abb56b099503344e3cdd7d6c40Brian 565c62b197b528293abb56b099503344e3cdd7d6c40Brian 566c62b197b528293abb56b099503344e3cdd7d6c40Brian/** 567c62b197b528293abb56b099503344e3cdd7d6c40Brian * If there's anything in the bitmap cache, draw/flush it now. 568c62b197b528293abb56b099503344e3cdd7d6c40Brian */ 569c62b197b528293abb56b099503344e3cdd7d6c40Brianvoid 570c62b197b528293abb56b099503344e3cdd7d6c40Brianst_flush_bitmap_cache(struct st_context *st) 571c62b197b528293abb56b099503344e3cdd7d6c40Brian{ 572c62b197b528293abb56b099503344e3cdd7d6c40Brian if (!st->bitmap.cache->empty) { 573985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul if (st->ctx->DrawBuffer) { 574985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul struct bitmap_cache *cache = st->bitmap.cache; 575985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul struct pipe_context *pipe = st->pipe; 576985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul struct pipe_screen *screen = pipe->screen; 577985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul struct pipe_surface *surf; 578985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul void *dest; 579985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul 580985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul assert(cache->xmin <= cache->xmax); 581985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul /* 582985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul printf("flush size %d x %d at %d, %d\n", 583985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul cache->xmax - cache->xmin, 584985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul cache->ymax - cache->ymin, 585985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul cache->xpos, cache->ypos); 586985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul */ 587985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul 588985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul /* update the texture map image */ 589985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul surf = screen->get_tex_surface(screen, cache->texture, 0, 0, 0); 590985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul dest = pipe_surface_map(surf); 591985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul memcpy(dest, cache->buffer, sizeof(cache->buffer)); 592985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul pipe_surface_unmap(surf); 593985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul pipe_surface_reference(&surf, NULL); 594985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul 595985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul pipe->texture_update(pipe, cache->texture, 0, 0x1); 596985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul 597985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul draw_bitmap_quad(st->ctx, 598985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul cache->xpos, 599985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul cache->ypos, 600985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul st->ctx->Current.RasterPos[2], 601985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul BITMAP_CACHE_WIDTH, BITMAP_CACHE_HEIGHT, 602985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul cache->texture); 603c62b197b528293abb56b099503344e3cdd7d6c40Brian 604985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul } 605737e34aee598f32f8ff078ba823ed149b282ebc8Brian reset_cache(st); 606c62b197b528293abb56b099503344e3cdd7d6c40Brian } 607c62b197b528293abb56b099503344e3cdd7d6c40Brian} 608c62b197b528293abb56b099503344e3cdd7d6c40Brian 609c62b197b528293abb56b099503344e3cdd7d6c40Brian 610c62b197b528293abb56b099503344e3cdd7d6c40Brian/** 611c62b197b528293abb56b099503344e3cdd7d6c40Brian * Try to accumulate this glBitmap call in the bitmap cache. 612c62b197b528293abb56b099503344e3cdd7d6c40Brian * \return GL_TRUE for success, GL_FALSE if bitmap is too large, etc. 613c62b197b528293abb56b099503344e3cdd7d6c40Brian */ 614c62b197b528293abb56b099503344e3cdd7d6c40Brianstatic GLboolean 615c62b197b528293abb56b099503344e3cdd7d6c40Brianaccum_bitmap(struct st_context *st, 616c62b197b528293abb56b099503344e3cdd7d6c40Brian GLint x, GLint y, GLsizei width, GLsizei height, 617c62b197b528293abb56b099503344e3cdd7d6c40Brian const struct gl_pixelstore_attrib *unpack, 618c62b197b528293abb56b099503344e3cdd7d6c40Brian const GLubyte *bitmap ) 619c62b197b528293abb56b099503344e3cdd7d6c40Brian{ 620737e34aee598f32f8ff078ba823ed149b282ebc8Brian struct bitmap_cache *cache = st->bitmap.cache; 621c62b197b528293abb56b099503344e3cdd7d6c40Brian int row, col; 622c62b197b528293abb56b099503344e3cdd7d6c40Brian int px = -999, py; 623c62b197b528293abb56b099503344e3cdd7d6c40Brian 624c62b197b528293abb56b099503344e3cdd7d6c40Brian if (width > BITMAP_CACHE_WIDTH || 625c62b197b528293abb56b099503344e3cdd7d6c40Brian height > BITMAP_CACHE_HEIGHT) 626c62b197b528293abb56b099503344e3cdd7d6c40Brian return GL_FALSE; /* too big to cache */ 627c62b197b528293abb56b099503344e3cdd7d6c40Brian 628737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (!cache->empty) { 629737e34aee598f32f8ff078ba823ed149b282ebc8Brian px = x - cache->xpos; /* pos in buffer */ 630737e34aee598f32f8ff078ba823ed149b282ebc8Brian py = y - cache->ypos; 631c62b197b528293abb56b099503344e3cdd7d6c40Brian if (px < 0 || px + width > BITMAP_CACHE_WIDTH || 632c62b197b528293abb56b099503344e3cdd7d6c40Brian py < 0 || py + height > BITMAP_CACHE_HEIGHT) { 633c62b197b528293abb56b099503344e3cdd7d6c40Brian /* This bitmap would extend beyond cache bounds, 634c62b197b528293abb56b099503344e3cdd7d6c40Brian * so flush and continue. 635c62b197b528293abb56b099503344e3cdd7d6c40Brian */ 636c62b197b528293abb56b099503344e3cdd7d6c40Brian st_flush_bitmap_cache(st); 637c62b197b528293abb56b099503344e3cdd7d6c40Brian } 638c62b197b528293abb56b099503344e3cdd7d6c40Brian } 639c62b197b528293abb56b099503344e3cdd7d6c40Brian 640737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (cache->empty) { 641c62b197b528293abb56b099503344e3cdd7d6c40Brian /* Initialize. Center bitmap vertically in the buffer. */ 642c62b197b528293abb56b099503344e3cdd7d6c40Brian px = 0; 643c62b197b528293abb56b099503344e3cdd7d6c40Brian py = (BITMAP_CACHE_HEIGHT - height) / 2; 644737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->xpos = x; 645737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->ypos = y - py; 646737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->empty = GL_FALSE; 647c62b197b528293abb56b099503344e3cdd7d6c40Brian } 648c62b197b528293abb56b099503344e3cdd7d6c40Brian 649c62b197b528293abb56b099503344e3cdd7d6c40Brian assert(px != -999); 650c62b197b528293abb56b099503344e3cdd7d6c40Brian 651737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (x < cache->xmin) 652737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->xmin = x; 653737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (y < cache->ymin) 654737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->ymin = y; 655737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (x + width > cache->xmax) 656737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->xmax = x + width; 657737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (y + height > cache->ymax) 658737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->ymax = y + height; 659737e34aee598f32f8ff078ba823ed149b282ebc8Brian 660c62b197b528293abb56b099503344e3cdd7d6c40Brian /* XXX try to combine this code with code in make_bitmap_texture() */ 661c62b197b528293abb56b099503344e3cdd7d6c40Brian#define SET_PIXEL(COL, ROW) \ 6626b0be38a6cfecd2babc7175b0877bed522ca9f72Brian cache->buffer[py + (ROW)][px + (COL)] = 0x0; 663c62b197b528293abb56b099503344e3cdd7d6c40Brian 664c62b197b528293abb56b099503344e3cdd7d6c40Brian for (row = 0; row < height; row++) { 665c62b197b528293abb56b099503344e3cdd7d6c40Brian const GLubyte *src = (const GLubyte *) _mesa_image_address2d(unpack, 666c62b197b528293abb56b099503344e3cdd7d6c40Brian bitmap, width, height, GL_COLOR_INDEX, GL_BITMAP, row, 0); 667c62b197b528293abb56b099503344e3cdd7d6c40Brian 668c62b197b528293abb56b099503344e3cdd7d6c40Brian if (unpack->LsbFirst) { 669c62b197b528293abb56b099503344e3cdd7d6c40Brian /* Lsb first */ 670c62b197b528293abb56b099503344e3cdd7d6c40Brian GLubyte mask = 1U << (unpack->SkipPixels & 0x7); 671c62b197b528293abb56b099503344e3cdd7d6c40Brian for (col = 0; col < width; col++) { 672c62b197b528293abb56b099503344e3cdd7d6c40Brian 673c62b197b528293abb56b099503344e3cdd7d6c40Brian if (*src & mask) { 674c62b197b528293abb56b099503344e3cdd7d6c40Brian SET_PIXEL(col, row); 675c62b197b528293abb56b099503344e3cdd7d6c40Brian } 676c62b197b528293abb56b099503344e3cdd7d6c40Brian 677c62b197b528293abb56b099503344e3cdd7d6c40Brian if (mask == 128U) { 678c62b197b528293abb56b099503344e3cdd7d6c40Brian src++; 679c62b197b528293abb56b099503344e3cdd7d6c40Brian mask = 1U; 680c62b197b528293abb56b099503344e3cdd7d6c40Brian } 681c62b197b528293abb56b099503344e3cdd7d6c40Brian else { 682c62b197b528293abb56b099503344e3cdd7d6c40Brian mask = mask << 1; 683c62b197b528293abb56b099503344e3cdd7d6c40Brian } 684c62b197b528293abb56b099503344e3cdd7d6c40Brian } 685c62b197b528293abb56b099503344e3cdd7d6c40Brian 686c62b197b528293abb56b099503344e3cdd7d6c40Brian /* get ready for next row */ 687c62b197b528293abb56b099503344e3cdd7d6c40Brian if (mask != 1) 688c62b197b528293abb56b099503344e3cdd7d6c40Brian src++; 689c62b197b528293abb56b099503344e3cdd7d6c40Brian } 690c62b197b528293abb56b099503344e3cdd7d6c40Brian else { 691c62b197b528293abb56b099503344e3cdd7d6c40Brian /* Msb first */ 692c62b197b528293abb56b099503344e3cdd7d6c40Brian GLubyte mask = 128U >> (unpack->SkipPixels & 0x7); 693c62b197b528293abb56b099503344e3cdd7d6c40Brian for (col = 0; col < width; col++) { 694c62b197b528293abb56b099503344e3cdd7d6c40Brian 695c62b197b528293abb56b099503344e3cdd7d6c40Brian if (*src & mask) { 696c62b197b528293abb56b099503344e3cdd7d6c40Brian SET_PIXEL(col, row); 697c62b197b528293abb56b099503344e3cdd7d6c40Brian } 698c62b197b528293abb56b099503344e3cdd7d6c40Brian 699c62b197b528293abb56b099503344e3cdd7d6c40Brian if (mask == 1U) { 700c62b197b528293abb56b099503344e3cdd7d6c40Brian src++; 701c62b197b528293abb56b099503344e3cdd7d6c40Brian mask = 128U; 702c62b197b528293abb56b099503344e3cdd7d6c40Brian } 703c62b197b528293abb56b099503344e3cdd7d6c40Brian else { 704c62b197b528293abb56b099503344e3cdd7d6c40Brian mask = mask >> 1; 705c62b197b528293abb56b099503344e3cdd7d6c40Brian } 706c62b197b528293abb56b099503344e3cdd7d6c40Brian } 707c62b197b528293abb56b099503344e3cdd7d6c40Brian 708c62b197b528293abb56b099503344e3cdd7d6c40Brian /* get ready for next row */ 709c62b197b528293abb56b099503344e3cdd7d6c40Brian if (mask != 128) 710c62b197b528293abb56b099503344e3cdd7d6c40Brian src++; 711c62b197b528293abb56b099503344e3cdd7d6c40Brian } 712c62b197b528293abb56b099503344e3cdd7d6c40Brian 713c62b197b528293abb56b099503344e3cdd7d6c40Brian } /* row */ 714c62b197b528293abb56b099503344e3cdd7d6c40Brian 715c62b197b528293abb56b099503344e3cdd7d6c40Brian return GL_TRUE; /* accumulated */ 716c62b197b528293abb56b099503344e3cdd7d6c40Brian} 717c62b197b528293abb56b099503344e3cdd7d6c40Brian 718c62b197b528293abb56b099503344e3cdd7d6c40Brian 719c62b197b528293abb56b099503344e3cdd7d6c40Brian 720c62b197b528293abb56b099503344e3cdd7d6c40Brian/** 721c62b197b528293abb56b099503344e3cdd7d6c40Brian * Called via ctx->Driver.Bitmap() 722c62b197b528293abb56b099503344e3cdd7d6c40Brian */ 723c62b197b528293abb56b099503344e3cdd7d6c40Brianstatic void 7243ece9ace540447c4f0d340a6f9f27980b54f83fbBrianst_Bitmap(GLcontext *ctx, GLint x, GLint y, GLsizei width, GLsizei height, 7253ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const struct gl_pixelstore_attrib *unpack, const GLubyte *bitmap ) 7263ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 7273ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct st_context *st = ctx->st; 7283ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_texture *pt; 7293ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 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], 751c62b197b528293abb56b099503344e3cdd7d6c40Brian width, height, pt); 7523ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pipe_texture_reference(&pt, NULL); 7533ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 7543ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 7553ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 7563ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 757c62b197b528293abb56b099503344e3cdd7d6c40Brian/** Per-context init */ 758c62b197b528293abb56b099503344e3cdd7d6c40Brianvoid 759c62b197b528293abb56b099503344e3cdd7d6c40Brianst_init_bitmap_functions(struct dd_function_table *functions) 7603ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 7613ece9ace540447c4f0d340a6f9f27980b54f83fbBrian functions->Bitmap = st_Bitmap; 7623ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 7633ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 7643ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 765c62b197b528293abb56b099503344e3cdd7d6c40Brian/** Per-context init */ 766c62b197b528293abb56b099503344e3cdd7d6c40Brianvoid 767c62b197b528293abb56b099503344e3cdd7d6c40Brianst_init_bitmap(struct st_context *st) 768c62b197b528293abb56b099503344e3cdd7d6c40Brian{ 769e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian struct pipe_sampler_state *sampler = &st->bitmap.sampler; 770e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian 771e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian /* init sampler state once */ 772e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian memset(sampler, 0, sizeof(*sampler)); 773e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->wrap_s = PIPE_TEX_WRAP_CLAMP; 774e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->wrap_t = PIPE_TEX_WRAP_CLAMP; 775e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->wrap_r = PIPE_TEX_WRAP_CLAMP; 776e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->min_img_filter = PIPE_TEX_FILTER_NEAREST; 777e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->min_mip_filter = PIPE_TEX_MIPFILTER_NONE; 778e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->mag_img_filter = PIPE_TEX_FILTER_NEAREST; 779e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->normalized_coords = 1; 780e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian 7816a382250a10e7022e93b6be6fe4657445d85a568Brian /* init baseline rasterizer state once */ 782e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian memset(&st->bitmap.rasterizer, 0, sizeof(st->bitmap.rasterizer)); 783124e1345c9ba4abe17bb04b8781ec0fe803eda7bBrian st->bitmap.rasterizer.gl_rasterization_rules = 1; 7846a382250a10e7022e93b6be6fe4657445d85a568Brian st->bitmap.rasterizer.bypass_vs = 1; 785e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian 786c62b197b528293abb56b099503344e3cdd7d6c40Brian init_bitmap_cache(st); 787c62b197b528293abb56b099503344e3cdd7d6c40Brian} 788c62b197b528293abb56b099503344e3cdd7d6c40Brian 789c62b197b528293abb56b099503344e3cdd7d6c40Brian 790c62b197b528293abb56b099503344e3cdd7d6c40Brian/** Per-context tear-down */ 7913ece9ace540447c4f0d340a6f9f27980b54f83fbBrianvoid 7923ece9ace540447c4f0d340a6f9f27980b54f83fbBrianst_destroy_bitmap(struct st_context *st) 7933ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 7943ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_context *pipe = st->pipe; 7953ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 79633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul#if 0 79722a3d022542fed267d48b48a44e10226d55c8afdBrian Paul if (st->bitmap.combined_prog) { 79822a3d022542fed267d48b48a44e10226d55c8afdBrian Paul st_delete_program(st->ctx, &st->bitmap.combined_prog->Base.Base); 79922a3d022542fed267d48b48a44e10226d55c8afdBrian Paul } 80022a3d022542fed267d48b48a44e10226d55c8afdBrian Paul 80122a3d022542fed267d48b48a44e10226d55c8afdBrian Paul if (st->bitmap.program) { 80222a3d022542fed267d48b48a44e10226d55c8afdBrian Paul st_delete_program(st->ctx, &st->bitmap.program->Base.Base); 80322a3d022542fed267d48b48a44e10226d55c8afdBrian Paul } 80433f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul#endif 8053ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (st->bitmap.vs) { 8063ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pipe->delete_vs_state(pipe, st->bitmap.vs); 8073ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vs = NULL; 8083ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 809c62b197b528293abb56b099503344e3cdd7d6c40Brian 8103ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (st->bitmap.vbuf) { 8113ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pipe->winsys->buffer_destroy(pipe->winsys, st->bitmap.vbuf); 8123ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vbuf = NULL; 8133ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 8143ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 815c62b197b528293abb56b099503344e3cdd7d6c40Brian if (st->bitmap.cache) { 816c62b197b528293abb56b099503344e3cdd7d6c40Brian pipe_texture_release(&st->bitmap.cache->texture); 817c62b197b528293abb56b099503344e3cdd7d6c40Brian FREE(st->bitmap.cache); 818c62b197b528293abb56b099503344e3cdd7d6c40Brian st->bitmap.cache = NULL; 819c62b197b528293abb56b099503344e3cdd7d6c40Brian } 820c62b197b528293abb56b099503344e3cdd7d6c40Brian} 821