st_cb_bitmap.c revision d3b98330d800d347e3fccf80a40fa87453659c6c
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; 93d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul 94c62b197b528293abb56b099503344e3cdd7d6c40Brian struct pipe_texture *texture; 95d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul struct pipe_surface *surf; 96d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul 97737e34aee598f32f8ff078ba823ed149b282ebc8Brian GLboolean empty; 98d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul 99737e34aee598f32f8ff078ba823ed149b282ebc8Brian /** An I8 texture image: */ 100d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul ubyte *buffer; 101c62b197b528293abb56b099503344e3cdd7d6c40Brian}; 102c62b197b528293abb56b099503344e3cdd7d6c40Brian 103c62b197b528293abb56b099503344e3cdd7d6c40Brian 104c62b197b528293abb56b099503344e3cdd7d6c40Brian 105c62b197b528293abb56b099503344e3cdd7d6c40Brian 106c62b197b528293abb56b099503344e3cdd7d6c40Brian/** 1073ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Make fragment program for glBitmap: 1083ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Sample the texture and kill the fragment if the bit is 0. 1093ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * This program will be combined with the user's fragment program. 1103ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 1113ece9ace540447c4f0d340a6f9f27980b54f83fbBrianstatic struct st_fragment_program * 11233f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paulmake_bitmap_fragment_program(GLcontext *ctx, GLuint samplerIndex) 1133ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 1143ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct st_fragment_program *stfp; 1153ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct gl_program *p; 1163ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLuint ic = 0; 1173ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1183ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p = ctx->Driver.NewProgram(ctx, GL_FRAGMENT_PROGRAM_ARB, 0); 1193ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (!p) 1203ece9ace540447c4f0d340a6f9f27980b54f83fbBrian return NULL; 1213ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1226b0be38a6cfecd2babc7175b0877bed522ca9f72Brian p->NumInstructions = 3; 1233ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1243ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions = _mesa_alloc_instructions(p->NumInstructions); 1253ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (!p->Instructions) { 1263ece9ace540447c4f0d340a6f9f27980b54f83fbBrian ctx->Driver.DeleteProgram(ctx, p); 1273ece9ace540447c4f0d340a6f9f27980b54f83fbBrian return NULL; 1283ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 1293ece9ace540447c4f0d340a6f9f27980b54f83fbBrian _mesa_init_instructions(p->Instructions, p->NumInstructions); 1303ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1313ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* TEX tmp0, fragment.texcoord[0], texture[0], 2D; */ 1323ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].Opcode = OPCODE_TEX; 1333ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].DstReg.File = PROGRAM_TEMPORARY; 1343ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].DstReg.Index = 0; 1353ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].SrcReg[0].File = PROGRAM_INPUT; 1363ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].SrcReg[0].Index = FRAG_ATTRIB_TEX0; 13733f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul p->Instructions[ic].TexSrcUnit = samplerIndex; 1383ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].TexSrcTarget = TEXTURE_2D_INDEX; 1393ece9ace540447c4f0d340a6f9f27980b54f83fbBrian ic++; 1403ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1416b0be38a6cfecd2babc7175b0877bed522ca9f72Brian /* KIL if -tmp0 < 0 # texel=0 -> keep / texel=0 -> discard */ 1423ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].Opcode = OPCODE_KIL; 1433ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].SrcReg[0].File = PROGRAM_TEMPORARY; 1443ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].SrcReg[0].Index = 0; 1456b0be38a6cfecd2babc7175b0877bed522ca9f72Brian p->Instructions[ic].SrcReg[0].NegateBase = NEGATE_XYZW; 1463ece9ace540447c4f0d340a6f9f27980b54f83fbBrian ic++; 1473ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1483ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* END; */ 1493ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic++].Opcode = OPCODE_END; 1503ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1513ece9ace540447c4f0d340a6f9f27980b54f83fbBrian assert(ic == p->NumInstructions); 1523ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1533ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->InputsRead = FRAG_BIT_TEX0; 1543ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->OutputsWritten = 0x0; 15533f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul p->SamplersUsed = (1 << samplerIndex); 1563ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1573ece9ace540447c4f0d340a6f9f27980b54f83fbBrian stfp = (struct st_fragment_program *) p; 1583ece9ace540447c4f0d340a6f9f27980b54f83fbBrian stfp->Base.UsesKill = GL_TRUE; 1593ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st_translate_fragment_program(ctx->st, stfp, NULL); 1603ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1613ece9ace540447c4f0d340a6f9f27980b54f83fbBrian return stfp; 1623ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 1633ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1643ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 16533f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paulstatic int 16633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paulfind_free_bit(uint bitfield) 16733f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul{ 16833f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul int i; 16933f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul for (i = 0; i < 32; i++) { 17033f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul if ((bitfield & (1 << i)) == 0) { 17133f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul return i; 17233f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul } 17333f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul } 17433f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul return -1; 17533f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul} 17633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul 17733f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul 1783ece9ace540447c4f0d340a6f9f27980b54f83fbBrian/** 1793ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Combine basic bitmap fragment program with the user-defined program. 1803ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 1813ece9ace540447c4f0d340a6f9f27980b54f83fbBrianstatic struct st_fragment_program * 1823ece9ace540447c4f0d340a6f9f27980b54f83fbBriancombined_bitmap_fragment_program(GLcontext *ctx) 1833ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 1843ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct st_context *st = ctx->st; 18533f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul struct st_fragment_program *stfp = st->fp; 1863ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 18733f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul if (!stfp->bitmap_program) { 18833f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul /* 18933f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul * Generate new program which is the user-defined program prefixed 19033f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul * with the bitmap sampler/kill instructions. 1913ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 19233f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul struct st_fragment_program *bitmap_prog; 19333f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul uint sampler; 1943ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 19533f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul sampler = find_free_bit(st->fp->Base.Base.SamplersUsed); 19633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul bitmap_prog = make_bitmap_fragment_program(ctx, sampler); 19733f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul 19833f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul stfp->bitmap_program = (struct st_fragment_program *) 19933f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul _mesa_combine_programs(ctx, 20033f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul &bitmap_prog->Base.Base, &stfp->Base.Base); 20133f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul stfp->bitmap_program->bitmap_sampler = sampler; 2023ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#if 0 2033ece9ace540447c4f0d340a6f9f27980b54f83fbBrian { 20433f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul struct gl_program *p = &stfp->bitmap_program->Base.Base; 2053ece9ace540447c4f0d340a6f9f27980b54f83fbBrian printf("Combined bitmap program:\n"); 2063ece9ace540447c4f0d340a6f9f27980b54f83fbBrian _mesa_print_program(p); 2073ece9ace540447c4f0d340a6f9f27980b54f83fbBrian printf("InputsRead: 0x%x\n", p->InputsRead); 2083ece9ace540447c4f0d340a6f9f27980b54f83fbBrian printf("OutputsWritten: 0x%x\n", p->OutputsWritten); 2093ece9ace540447c4f0d340a6f9f27980b54f83fbBrian _mesa_print_parameter_list(p->Parameters); 2103ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2113ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#endif 2123ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2133ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* translate to TGSI tokens */ 21433f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul st_translate_fragment_program(st, stfp->bitmap_program, NULL); 2153ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2163ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2173ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* Ideally we'd have updated the pipe constants during the normal 2183ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * st/atom mechanism. But we can't since this is specific to glBitmap. 2193ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 2203ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st_upload_constants(st, stfp->Base.Base.Parameters, PIPE_SHADER_FRAGMENT); 2213ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 22233f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul return stfp->bitmap_program; 2233ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 2243ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2253ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2263ece9ace540447c4f0d340a6f9f27980b54f83fbBrian/** 2273ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Create a texture which represents a bitmap image. 2283ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 2293ece9ace540447c4f0d340a6f9f27980b54f83fbBrianstatic struct pipe_texture * 2303ece9ace540447c4f0d340a6f9f27980b54f83fbBrianmake_bitmap_texture(GLcontext *ctx, GLsizei width, GLsizei height, 2313ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const struct gl_pixelstore_attrib *unpack, 2323ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const GLubyte *bitmap) 2333ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 2343ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_context *pipe = ctx->st->pipe; 2353ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_screen *screen = pipe->screen; 2363ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_surface *surface; 2373ece9ace540447c4f0d340a6f9f27980b54f83fbBrian ubyte *dest; 2383ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_texture *pt; 2393ece9ace540447c4f0d340a6f9f27980b54f83fbBrian int row, col; 2403ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 241f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul /* PBO source... */ 242a39091bc5b68e4d4f5302f1d3f1a138798f54b77Brian bitmap = _mesa_map_bitmap_pbo(ctx, unpack, bitmap); 243f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul if (!bitmap) { 244f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul return NULL; 245f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul } 246f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul 2473ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /** 248f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul * Create texture to hold bitmap pattern. 2493ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 250eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul pt = st_texture_create(ctx->st, PIPE_TEXTURE_2D, ctx->st->bitmap.tex_format, 251eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul 0, width, height, 1, 0); 252f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul if (!pt) { 253f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul _mesa_unmap_bitmap_pbo(ctx, unpack); 2543ece9ace540447c4f0d340a6f9f27980b54f83fbBrian return NULL; 2553ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2563ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2573ece9ace540447c4f0d340a6f9f27980b54f83fbBrian surface = screen->get_tex_surface(screen, pt, 0, 0, 0); 2583ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2593ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* map texture surface */ 2603ece9ace540447c4f0d340a6f9f27980b54f83fbBrian dest = pipe_surface_map(surface); 2613ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2623ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* Put image into texture surface. 2633ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Note that the image is actually going to be upside down in 2643ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * the texture. We deal with that with texcoords. 2653ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 2663ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2673ece9ace540447c4f0d340a6f9f27980b54f83fbBrian for (row = 0; row < height; row++) { 2683ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const GLubyte *src = (const GLubyte *) _mesa_image_address2d(unpack, 2693ece9ace540447c4f0d340a6f9f27980b54f83fbBrian bitmap, width, height, GL_COLOR_INDEX, GL_BITMAP, row, 0); 270eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul ubyte *destRow = dest + row * surface->pitch; 2713ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2723ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (unpack->LsbFirst) { 2733ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* Lsb first */ 2743ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLubyte mask = 1U << (unpack->SkipPixels & 0x7); 2753ece9ace540447c4f0d340a6f9f27980b54f83fbBrian for (col = 0; col < width; col++) { 2763ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2773ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* set texel to 255 if bit is set */ 278eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul destRow[col] = (*src & mask) ? 0x0 : 0xff; 2793ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2803ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (mask == 128U) { 2813ece9ace540447c4f0d340a6f9f27980b54f83fbBrian src++; 2823ece9ace540447c4f0d340a6f9f27980b54f83fbBrian mask = 1U; 2833ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2843ece9ace540447c4f0d340a6f9f27980b54f83fbBrian else { 2853ece9ace540447c4f0d340a6f9f27980b54f83fbBrian mask = mask << 1; 2863ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2873ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2883ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2893ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* get ready for next row */ 2903ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (mask != 1) 2913ece9ace540447c4f0d340a6f9f27980b54f83fbBrian src++; 2923ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2933ece9ace540447c4f0d340a6f9f27980b54f83fbBrian else { 2943ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* Msb first */ 2953ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLubyte mask = 128U >> (unpack->SkipPixels & 0x7); 2963ece9ace540447c4f0d340a6f9f27980b54f83fbBrian for (col = 0; col < width; col++) { 2973ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2983ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* set texel to 255 if bit is set */ 299eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul destRow[col] =(*src & mask) ? 0x0 : 0xff; 3003ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3013ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (mask == 1U) { 3023ece9ace540447c4f0d340a6f9f27980b54f83fbBrian src++; 3033ece9ace540447c4f0d340a6f9f27980b54f83fbBrian mask = 128U; 3043ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 3053ece9ace540447c4f0d340a6f9f27980b54f83fbBrian else { 3063ece9ace540447c4f0d340a6f9f27980b54f83fbBrian mask = mask >> 1; 3073ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 3083ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 3093ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3103ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* get ready for next row */ 3113ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (mask != 128) 3123ece9ace540447c4f0d340a6f9f27980b54f83fbBrian src++; 3133ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 3143ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3153ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } /* row */ 3163ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 317f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul _mesa_unmap_bitmap_pbo(ctx, unpack); 318f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul 3193ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* Release surface */ 3203ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pipe_surface_unmap(surface); 3213ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pipe_surface_reference(&surface, NULL); 3223ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pipe->texture_update(pipe, pt, 0, 0x1); 3233ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3243ece9ace540447c4f0d340a6f9f27980b54f83fbBrian return pt; 3253ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 3263ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3273ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3283ece9ace540447c4f0d340a6f9f27980b54f83fbBrianstatic void 3293ece9ace540447c4f0d340a6f9f27980b54f83fbBriansetup_bitmap_vertex_data(struct st_context *st, 3303ece9ace540447c4f0d340a6f9f27980b54f83fbBrian int x, int y, int width, int height, 3313ece9ace540447c4f0d340a6f9f27980b54f83fbBrian float z, const float color[4]) 3323ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 3333ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_context *pipe = st->pipe; 3343ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const struct gl_framebuffer *fb = st->ctx->DrawBuffer; 335e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const GLfloat fb_width = fb->Width; 336e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const GLfloat fb_height = fb->Height; 3373ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const GLfloat x0 = x; 3383ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const GLfloat x1 = x + width; 339e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const GLfloat y0 = y; 340e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const GLfloat y1 = y + height; 3411cf164142768d8338527ee8cab8dee83af82af0bBrian Paul const GLfloat sLeft = 0.0F, sRight = 1.0F; 3421cf164142768d8338527ee8cab8dee83af82af0bBrian Paul const GLfloat tTop = 0.0, tBot = 1.0 - tTop; 343e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const GLfloat clip_x0 = x0 / fb_width * 2.0 - 1.0; 344e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const GLfloat clip_y0 = y0 / fb_height * 2.0 - 1.0; 345e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const GLfloat clip_x1 = x1 / fb_width * 2.0 - 1.0; 346e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const GLfloat clip_y1 = y1 / fb_height * 2.0 - 1.0; 3473ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLuint i; 3483ece9ace540447c4f0d340a6f9f27980b54f83fbBrian void *buf; 3493ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3503ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (!st->bitmap.vbuf) { 3513ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vbuf = pipe->winsys->buffer_create(pipe->winsys, 32, 3523ece9ace540447c4f0d340a6f9f27980b54f83fbBrian PIPE_BUFFER_USAGE_VERTEX, 3533ece9ace540447c4f0d340a6f9f27980b54f83fbBrian sizeof(st->bitmap.vertices)); 3543ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 3553ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 356e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian /* Positions are in clip coords since we need to do clipping in case 357e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian * the bitmap quad goes beyond the window bounds. 358e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian */ 359e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[0][0][0] = clip_x0; 360e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[0][0][1] = clip_y0; 3613ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[0][2][0] = sLeft; 3623ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[0][2][1] = tTop; 3633ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 364e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[1][0][0] = clip_x1; 365e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[1][0][1] = clip_y0; 3663ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[1][2][0] = sRight; 3673ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[1][2][1] = tTop; 3683ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 369e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[2][0][0] = clip_x1; 370e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[2][0][1] = clip_y1; 3713ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[2][2][0] = sRight; 3723ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[2][2][1] = tBot; 3733ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 374e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[3][0][0] = clip_x0; 375e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[3][0][1] = clip_y1; 3763ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[3][2][0] = sLeft; 3773ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[3][2][1] = tBot; 3783ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3793ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* same for all verts: */ 3803ece9ace540447c4f0d340a6f9f27980b54f83fbBrian for (i = 0; i < 4; i++) { 3813ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][0][2] = z; 3823ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][0][3] = 1.0; 3833ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][1][0] = color[0]; 3843ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][1][1] = color[1]; 3853ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][1][2] = color[2]; 3863ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][1][3] = color[3]; 3873ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][2][2] = 0.0; /*R*/ 3883ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][2][3] = 1.0; /*Q*/ 3893ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 3903ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3913ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* put vertex data into vbuf */ 3923ece9ace540447c4f0d340a6f9f27980b54f83fbBrian buf = pipe->winsys->buffer_map(pipe->winsys, st->bitmap.vbuf, 3933ece9ace540447c4f0d340a6f9f27980b54f83fbBrian PIPE_BUFFER_USAGE_CPU_WRITE); 3943ece9ace540447c4f0d340a6f9f27980b54f83fbBrian memcpy(buf, st->bitmap.vertices, sizeof(st->bitmap.vertices)); 3953ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pipe->winsys->buffer_unmap(pipe->winsys, st->bitmap.vbuf); 3963ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 3973ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3983ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3993ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4003ece9ace540447c4f0d340a6f9f27980b54f83fbBrian/** 4013ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Render a glBitmap by drawing a textured quad 4023ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 4033ece9ace540447c4f0d340a6f9f27980b54f83fbBrianstatic void 4043ece9ace540447c4f0d340a6f9f27980b54f83fbBriandraw_bitmap_quad(GLcontext *ctx, GLint x, GLint y, GLfloat z, 4053ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLsizei width, GLsizei height, 406c62b197b528293abb56b099503344e3cdd7d6c40Brian struct pipe_texture *pt) 4073ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 4083ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct st_context *st = ctx->st; 4093ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_context *pipe = ctx->st->pipe; 4103ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct cso_context *cso = ctx->st->cso_context; 411c62b197b528293abb56b099503344e3cdd7d6c40Brian struct st_fragment_program *stfp; 4123ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLuint maxSize; 4133ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 414c62b197b528293abb56b099503344e3cdd7d6c40Brian stfp = combined_bitmap_fragment_program(ctx); 415c62b197b528293abb56b099503344e3cdd7d6c40Brian 4163ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* limit checks */ 417c62b197b528293abb56b099503344e3cdd7d6c40Brian /* XXX if the bitmap is larger than the max texture size, break 4183ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * it up into chunks. 4193ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 4203ece9ace540447c4f0d340a6f9f27980b54f83fbBrian maxSize = 1 << (pipe->screen->get_param(pipe->screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS) - 1); 4213ece9ace540447c4f0d340a6f9f27980b54f83fbBrian assert(width <= maxSize); 4223ece9ace540447c4f0d340a6f9f27980b54f83fbBrian assert(height <= maxSize); 4233ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4243ece9ace540447c4f0d340a6f9f27980b54f83fbBrian cso_save_rasterizer(cso); 425d246274b9c48c01b61490f0a76c22aebb8e64e1eBrian Paul cso_save_samplers(cso); 426ddc0f91bfc571dcd05c13f094c179b4250e53bccBrian cso_save_sampler_textures(cso); 427e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian cso_save_viewport(cso); 42865efe807b9067aa07b382e3c4d9cea6222c5fc6bMichel Dänzer cso_save_fragment_shader(cso); 42965efe807b9067aa07b382e3c4d9cea6222c5fc6bMichel Dänzer cso_save_vertex_shader(cso); 4303ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4313ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* rasterizer state: just scissor */ 432e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.rasterizer.scissor = ctx->Scissor.Enabled; 433e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian cso_set_rasterizer(cso, &st->bitmap.rasterizer); 4343ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4353ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* fragment shader state: TEX lookup program */ 43601dfa6cde157321f565bab949f23f367ed20fa0eKeith Whitwell cso_set_fragment_shader_handle(cso, stfp->driver_shader); 4373ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4383ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* vertex shader state: position + texcoord pass-through */ 43901dfa6cde157321f565bab949f23f367ed20fa0eKeith Whitwell cso_set_vertex_shader_handle(cso, st->bitmap.vs); 4403ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 44133f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul /* user samplers, plus our bitmap sampler */ 44233f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul { 44333f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul struct pipe_sampler_state *samplers[PIPE_MAX_SAMPLERS]; 44433f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul uint num = MAX2(stfp->bitmap_sampler + 1, st->state.num_samplers); 44533f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul uint i; 44633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul for (i = 0; i < st->state.num_samplers; i++) { 44733f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul samplers[i] = &st->state.samplers[i]; 44833f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul } 44933f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul samplers[stfp->bitmap_sampler] = &st->bitmap.sampler; 45033f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul cso_set_samplers(cso, num, (const struct pipe_sampler_state **) samplers); } 45133f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul 45233f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul /* user textures, plus the bitmap texture */ 45333f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul { 45433f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul struct pipe_texture *textures[PIPE_MAX_SAMPLERS]; 45533f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul uint num = MAX2(stfp->bitmap_sampler + 1, st->state.num_textures); 45633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul memcpy(textures, st->state.sampler_texture, sizeof(textures)); 45733f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul textures[stfp->bitmap_sampler] = pt; 45833f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul cso_set_sampler_textures(cso, num, textures); 45933f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul } 460e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian 461e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian /* viewport state: viewport matching window dims */ 4623ece9ace540447c4f0d340a6f9f27980b54f83fbBrian { 463e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const struct gl_framebuffer *fb = st->ctx->DrawBuffer; 464e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const GLboolean invert = (st_fb_orientation(fb) == Y_0_TOP); 465e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const float width = fb->Width; 466e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const float height = fb->Height; 467e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian struct pipe_viewport_state vp; 468e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian vp.scale[0] = 0.5 * width; 469e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian vp.scale[1] = height * (invert ? -0.5 : 0.5); 470e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian vp.scale[2] = 1.0; 471e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian vp.scale[3] = 1.0; 472e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian vp.translate[0] = 0.5 * width; 473e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian vp.translate[1] = 0.5 * height; 474e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian vp.translate[2] = 0.0; 475e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian vp.translate[3] = 0.0; 476e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian cso_set_viewport(cso, &vp); 4773ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 4783ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4793ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* draw textured quad */ 4803ece9ace540447c4f0d340a6f9f27980b54f83fbBrian setup_bitmap_vertex_data(st, x, y, width, height, 4813ece9ace540447c4f0d340a6f9f27980b54f83fbBrian ctx->Current.RasterPos[2], 4823ece9ace540447c4f0d340a6f9f27980b54f83fbBrian ctx->Current.RasterColor); 4833ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4843ece9ace540447c4f0d340a6f9f27980b54f83fbBrian util_draw_vertex_buffer(pipe, st->bitmap.vbuf, 4853ece9ace540447c4f0d340a6f9f27980b54f83fbBrian PIPE_PRIM_TRIANGLE_FAN, 4863ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4, /* verts */ 4873ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3); /* attribs/vert */ 4883ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4893ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4903ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* restore state */ 4913ece9ace540447c4f0d340a6f9f27980b54f83fbBrian cso_restore_rasterizer(cso); 4923ece9ace540447c4f0d340a6f9f27980b54f83fbBrian cso_restore_samplers(cso); 493ddc0f91bfc571dcd05c13f094c179b4250e53bccBrian cso_restore_sampler_textures(cso); 494e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian cso_restore_viewport(cso); 495fd4acd6fdaaad4871327d081f5501680ed9da2edMichel Dänzer cso_restore_fragment_shader(cso); 496fd4acd6fdaaad4871327d081f5501680ed9da2edMichel Dänzer cso_restore_vertex_shader(cso); 4973ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 4983ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4993ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 500737e34aee598f32f8ff078ba823ed149b282ebc8Brianstatic void 501737e34aee598f32f8ff078ba823ed149b282ebc8Brianreset_cache(struct st_context *st) 502737e34aee598f32f8ff078ba823ed149b282ebc8Brian{ 503d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul struct pipe_context *pipe = st->pipe; 504d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul struct pipe_screen *screen = pipe->screen; 505d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul struct bitmap_cache *cache = st->bitmap.cache; 506737e34aee598f32f8ff078ba823ed149b282ebc8Brian 507d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul //memset(cache->buffer, 0xff, sizeof(cache->buffer)); 508d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->empty = GL_TRUE; 509737e34aee598f32f8ff078ba823ed149b282ebc8Brian 510d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->xmin = 1000000; 511d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->xmax = -1000000; 512d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->ymin = 1000000; 513d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->ymax = -1000000; 5143ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 515d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul assert(!cache->texture); 516c62b197b528293abb56b099503344e3cdd7d6c40Brian 517d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul /* allocate a new texture */ 518d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->texture = st_texture_create(st, PIPE_TEXTURE_2D, 519d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul st->bitmap.tex_format, 0, 520d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul BITMAP_CACHE_WIDTH, BITMAP_CACHE_HEIGHT, 521d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul 1, 0); 522c62b197b528293abb56b099503344e3cdd7d6c40Brian 523d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul /* Map the texture surface. 524d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul * Subsequent glBitmap calls will write into the texture image. 525d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul */ 526d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->surf = screen->get_tex_surface(screen, cache->texture, 0, 0, 0); 527d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->buffer = pipe_surface_map(cache->surf); 528d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul 529d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul /* init image to all 0xff */ 530d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul memset(cache->buffer, 0xff, BITMAP_CACHE_WIDTH * BITMAP_CACHE_HEIGHT); 531c62b197b528293abb56b099503344e3cdd7d6c40Brian} 532c62b197b528293abb56b099503344e3cdd7d6c40Brian 533c62b197b528293abb56b099503344e3cdd7d6c40Brian 534c62b197b528293abb56b099503344e3cdd7d6c40Brian/** 535c62b197b528293abb56b099503344e3cdd7d6c40Brian * If there's anything in the bitmap cache, draw/flush it now. 536c62b197b528293abb56b099503344e3cdd7d6c40Brian */ 537c62b197b528293abb56b099503344e3cdd7d6c40Brianvoid 538c62b197b528293abb56b099503344e3cdd7d6c40Brianst_flush_bitmap_cache(struct st_context *st) 539c62b197b528293abb56b099503344e3cdd7d6c40Brian{ 540c62b197b528293abb56b099503344e3cdd7d6c40Brian if (!st->bitmap.cache->empty) { 541985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul if (st->ctx->DrawBuffer) { 542985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul struct bitmap_cache *cache = st->bitmap.cache; 543985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul struct pipe_context *pipe = st->pipe; 544985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul 545985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul assert(cache->xmin <= cache->xmax); 546985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul /* 547985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul printf("flush size %d x %d at %d, %d\n", 548985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul cache->xmax - cache->xmin, 549985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul cache->ymax - cache->ymin, 550985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul cache->xpos, cache->ypos); 551985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul */ 552985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul 553d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul /* The texture surface has been mapped until now. 554d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul * So unmap and release the texture surface before drawing. 5556fb40092261b891b78e504f453fddf041f9efac6Brian Paul */ 556d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul pipe_surface_unmap(cache->surf); 557d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul pipe_surface_reference(&cache->surf, NULL); 5586fb40092261b891b78e504f453fddf041f9efac6Brian Paul 559d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul /* XXX is this needed? */ 560985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul pipe->texture_update(pipe, cache->texture, 0, 0x1); 561985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul 562985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul draw_bitmap_quad(st->ctx, 563985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul cache->xpos, 564985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul cache->ypos, 565985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul st->ctx->Current.RasterPos[2], 566985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul BITMAP_CACHE_WIDTH, BITMAP_CACHE_HEIGHT, 567985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul cache->texture); 568d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul 569d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul /* release/free the texture */ 570d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul pipe_texture_reference(&cache->texture, NULL); 571985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul } 572737e34aee598f32f8ff078ba823ed149b282ebc8Brian reset_cache(st); 573c62b197b528293abb56b099503344e3cdd7d6c40Brian } 574c62b197b528293abb56b099503344e3cdd7d6c40Brian} 575c62b197b528293abb56b099503344e3cdd7d6c40Brian 576c62b197b528293abb56b099503344e3cdd7d6c40Brian 577c62b197b528293abb56b099503344e3cdd7d6c40Brian/** 578c62b197b528293abb56b099503344e3cdd7d6c40Brian * Try to accumulate this glBitmap call in the bitmap cache. 579c62b197b528293abb56b099503344e3cdd7d6c40Brian * \return GL_TRUE for success, GL_FALSE if bitmap is too large, etc. 580c62b197b528293abb56b099503344e3cdd7d6c40Brian */ 581c62b197b528293abb56b099503344e3cdd7d6c40Brianstatic GLboolean 582c62b197b528293abb56b099503344e3cdd7d6c40Brianaccum_bitmap(struct st_context *st, 583c62b197b528293abb56b099503344e3cdd7d6c40Brian GLint x, GLint y, GLsizei width, GLsizei height, 584c62b197b528293abb56b099503344e3cdd7d6c40Brian const struct gl_pixelstore_attrib *unpack, 585c62b197b528293abb56b099503344e3cdd7d6c40Brian const GLubyte *bitmap ) 586c62b197b528293abb56b099503344e3cdd7d6c40Brian{ 587737e34aee598f32f8ff078ba823ed149b282ebc8Brian struct bitmap_cache *cache = st->bitmap.cache; 588c62b197b528293abb56b099503344e3cdd7d6c40Brian int row, col; 589c62b197b528293abb56b099503344e3cdd7d6c40Brian int px = -999, py; 590c62b197b528293abb56b099503344e3cdd7d6c40Brian 591c62b197b528293abb56b099503344e3cdd7d6c40Brian if (width > BITMAP_CACHE_WIDTH || 592c62b197b528293abb56b099503344e3cdd7d6c40Brian height > BITMAP_CACHE_HEIGHT) 593c62b197b528293abb56b099503344e3cdd7d6c40Brian return GL_FALSE; /* too big to cache */ 594c62b197b528293abb56b099503344e3cdd7d6c40Brian 595737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (!cache->empty) { 596737e34aee598f32f8ff078ba823ed149b282ebc8Brian px = x - cache->xpos; /* pos in buffer */ 597737e34aee598f32f8ff078ba823ed149b282ebc8Brian py = y - cache->ypos; 598c62b197b528293abb56b099503344e3cdd7d6c40Brian if (px < 0 || px + width > BITMAP_CACHE_WIDTH || 599c62b197b528293abb56b099503344e3cdd7d6c40Brian py < 0 || py + height > BITMAP_CACHE_HEIGHT) { 600c62b197b528293abb56b099503344e3cdd7d6c40Brian /* This bitmap would extend beyond cache bounds, 601c62b197b528293abb56b099503344e3cdd7d6c40Brian * so flush and continue. 602c62b197b528293abb56b099503344e3cdd7d6c40Brian */ 603c62b197b528293abb56b099503344e3cdd7d6c40Brian st_flush_bitmap_cache(st); 604c62b197b528293abb56b099503344e3cdd7d6c40Brian } 605c62b197b528293abb56b099503344e3cdd7d6c40Brian } 606c62b197b528293abb56b099503344e3cdd7d6c40Brian 607737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (cache->empty) { 608c62b197b528293abb56b099503344e3cdd7d6c40Brian /* Initialize. Center bitmap vertically in the buffer. */ 609c62b197b528293abb56b099503344e3cdd7d6c40Brian px = 0; 610c62b197b528293abb56b099503344e3cdd7d6c40Brian py = (BITMAP_CACHE_HEIGHT - height) / 2; 611737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->xpos = x; 612737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->ypos = y - py; 613737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->empty = GL_FALSE; 614c62b197b528293abb56b099503344e3cdd7d6c40Brian } 615c62b197b528293abb56b099503344e3cdd7d6c40Brian 616c62b197b528293abb56b099503344e3cdd7d6c40Brian assert(px != -999); 617c62b197b528293abb56b099503344e3cdd7d6c40Brian 618737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (x < cache->xmin) 619737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->xmin = x; 620737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (y < cache->ymin) 621737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->ymin = y; 622737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (x + width > cache->xmax) 623737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->xmax = x + width; 624737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (y + height > cache->ymax) 625737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->ymax = y + height; 626737e34aee598f32f8ff078ba823ed149b282ebc8Brian 627c62b197b528293abb56b099503344e3cdd7d6c40Brian /* XXX try to combine this code with code in make_bitmap_texture() */ 628c62b197b528293abb56b099503344e3cdd7d6c40Brian#define SET_PIXEL(COL, ROW) \ 629d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->buffer[(py + (ROW)) * BITMAP_CACHE_WIDTH + px + (COL)] = 0x0; 630c62b197b528293abb56b099503344e3cdd7d6c40Brian 631c62b197b528293abb56b099503344e3cdd7d6c40Brian for (row = 0; row < height; row++) { 632c62b197b528293abb56b099503344e3cdd7d6c40Brian const GLubyte *src = (const GLubyte *) _mesa_image_address2d(unpack, 633c62b197b528293abb56b099503344e3cdd7d6c40Brian bitmap, width, height, GL_COLOR_INDEX, GL_BITMAP, row, 0); 634c62b197b528293abb56b099503344e3cdd7d6c40Brian 635c62b197b528293abb56b099503344e3cdd7d6c40Brian if (unpack->LsbFirst) { 636c62b197b528293abb56b099503344e3cdd7d6c40Brian /* Lsb first */ 637c62b197b528293abb56b099503344e3cdd7d6c40Brian GLubyte mask = 1U << (unpack->SkipPixels & 0x7); 638c62b197b528293abb56b099503344e3cdd7d6c40Brian for (col = 0; col < width; col++) { 639c62b197b528293abb56b099503344e3cdd7d6c40Brian 640c62b197b528293abb56b099503344e3cdd7d6c40Brian if (*src & mask) { 641c62b197b528293abb56b099503344e3cdd7d6c40Brian SET_PIXEL(col, row); 642c62b197b528293abb56b099503344e3cdd7d6c40Brian } 643c62b197b528293abb56b099503344e3cdd7d6c40Brian 644c62b197b528293abb56b099503344e3cdd7d6c40Brian if (mask == 128U) { 645c62b197b528293abb56b099503344e3cdd7d6c40Brian src++; 646c62b197b528293abb56b099503344e3cdd7d6c40Brian mask = 1U; 647c62b197b528293abb56b099503344e3cdd7d6c40Brian } 648c62b197b528293abb56b099503344e3cdd7d6c40Brian else { 649c62b197b528293abb56b099503344e3cdd7d6c40Brian mask = mask << 1; 650c62b197b528293abb56b099503344e3cdd7d6c40Brian } 651c62b197b528293abb56b099503344e3cdd7d6c40Brian } 652c62b197b528293abb56b099503344e3cdd7d6c40Brian 653c62b197b528293abb56b099503344e3cdd7d6c40Brian /* get ready for next row */ 654c62b197b528293abb56b099503344e3cdd7d6c40Brian if (mask != 1) 655c62b197b528293abb56b099503344e3cdd7d6c40Brian src++; 656c62b197b528293abb56b099503344e3cdd7d6c40Brian } 657c62b197b528293abb56b099503344e3cdd7d6c40Brian else { 658c62b197b528293abb56b099503344e3cdd7d6c40Brian /* Msb first */ 659c62b197b528293abb56b099503344e3cdd7d6c40Brian GLubyte mask = 128U >> (unpack->SkipPixels & 0x7); 660c62b197b528293abb56b099503344e3cdd7d6c40Brian for (col = 0; col < width; col++) { 661c62b197b528293abb56b099503344e3cdd7d6c40Brian 662c62b197b528293abb56b099503344e3cdd7d6c40Brian if (*src & mask) { 663c62b197b528293abb56b099503344e3cdd7d6c40Brian SET_PIXEL(col, row); 664c62b197b528293abb56b099503344e3cdd7d6c40Brian } 665c62b197b528293abb56b099503344e3cdd7d6c40Brian 666c62b197b528293abb56b099503344e3cdd7d6c40Brian if (mask == 1U) { 667c62b197b528293abb56b099503344e3cdd7d6c40Brian src++; 668c62b197b528293abb56b099503344e3cdd7d6c40Brian mask = 128U; 669c62b197b528293abb56b099503344e3cdd7d6c40Brian } 670c62b197b528293abb56b099503344e3cdd7d6c40Brian else { 671c62b197b528293abb56b099503344e3cdd7d6c40Brian mask = mask >> 1; 672c62b197b528293abb56b099503344e3cdd7d6c40Brian } 673c62b197b528293abb56b099503344e3cdd7d6c40Brian } 674c62b197b528293abb56b099503344e3cdd7d6c40Brian 675c62b197b528293abb56b099503344e3cdd7d6c40Brian /* get ready for next row */ 676c62b197b528293abb56b099503344e3cdd7d6c40Brian if (mask != 128) 677c62b197b528293abb56b099503344e3cdd7d6c40Brian src++; 678c62b197b528293abb56b099503344e3cdd7d6c40Brian } 679c62b197b528293abb56b099503344e3cdd7d6c40Brian 680c62b197b528293abb56b099503344e3cdd7d6c40Brian } /* row */ 681c62b197b528293abb56b099503344e3cdd7d6c40Brian 682c62b197b528293abb56b099503344e3cdd7d6c40Brian return GL_TRUE; /* accumulated */ 683c62b197b528293abb56b099503344e3cdd7d6c40Brian} 684c62b197b528293abb56b099503344e3cdd7d6c40Brian 685c62b197b528293abb56b099503344e3cdd7d6c40Brian 686c62b197b528293abb56b099503344e3cdd7d6c40Brian 687c62b197b528293abb56b099503344e3cdd7d6c40Brian/** 688c62b197b528293abb56b099503344e3cdd7d6c40Brian * Called via ctx->Driver.Bitmap() 689c62b197b528293abb56b099503344e3cdd7d6c40Brian */ 690c62b197b528293abb56b099503344e3cdd7d6c40Brianstatic void 6913ece9ace540447c4f0d340a6f9f27980b54f83fbBrianst_Bitmap(GLcontext *ctx, GLint x, GLint y, GLsizei width, GLsizei height, 6923ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const struct gl_pixelstore_attrib *unpack, const GLubyte *bitmap ) 6933ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 6943ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct st_context *st = ctx->st; 6953ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_texture *pt; 6963ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 6971ecb2e4a7a5881d5a98679b421d78fd11c729ebcBrian Paul st_validate_state(st); 6981ecb2e4a7a5881d5a98679b421d78fd11c729ebcBrian Paul 6993ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (!st->bitmap.vs) { 7003ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* create pass-through vertex shader now */ 7013ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const uint semantic_names[] = { TGSI_SEMANTIC_POSITION, 7023ece9ace540447c4f0d340a6f9f27980b54f83fbBrian TGSI_SEMANTIC_COLOR, 7033ece9ace540447c4f0d340a6f9f27980b54f83fbBrian TGSI_SEMANTIC_GENERIC }; 7043ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const uint semantic_indexes[] = { 0, 0, 0 }; 7053ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vs = util_make_vertex_passthrough_shader(st->pipe, 3, 7063ece9ace540447c4f0d340a6f9f27980b54f83fbBrian semantic_names, 7076f8286163c79a8187c2912a9b673a6f11f4f60c6Brian semantic_indexes, 7086f8286163c79a8187c2912a9b673a6f11f4f60c6Brian &st->bitmap.vert_shader); 7093ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 7103ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 711c62b197b528293abb56b099503344e3cdd7d6c40Brian if (UseBitmapCache && accum_bitmap(st, x, y, width, height, unpack, bitmap)) 712c62b197b528293abb56b099503344e3cdd7d6c40Brian return; 7133ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 7143ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pt = make_bitmap_texture(ctx, width, height, unpack, bitmap); 7153ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (pt) { 7166f8286163c79a8187c2912a9b673a6f11f4f60c6Brian assert(pt->target == PIPE_TEXTURE_2D); 7173ece9ace540447c4f0d340a6f9f27980b54f83fbBrian draw_bitmap_quad(ctx, x, y, ctx->Current.RasterPos[2], 718c62b197b528293abb56b099503344e3cdd7d6c40Brian width, height, pt); 719d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul /* release/free the texture */ 7203ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pipe_texture_reference(&pt, NULL); 7213ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 7223ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 7233ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 7243ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 725c62b197b528293abb56b099503344e3cdd7d6c40Brian/** Per-context init */ 726c62b197b528293abb56b099503344e3cdd7d6c40Brianvoid 727c62b197b528293abb56b099503344e3cdd7d6c40Brianst_init_bitmap_functions(struct dd_function_table *functions) 7283ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 7293ece9ace540447c4f0d340a6f9f27980b54f83fbBrian functions->Bitmap = st_Bitmap; 7303ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 7313ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 7323ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 733c62b197b528293abb56b099503344e3cdd7d6c40Brian/** Per-context init */ 734c62b197b528293abb56b099503344e3cdd7d6c40Brianvoid 735c62b197b528293abb56b099503344e3cdd7d6c40Brianst_init_bitmap(struct st_context *st) 736c62b197b528293abb56b099503344e3cdd7d6c40Brian{ 737e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian struct pipe_sampler_state *sampler = &st->bitmap.sampler; 738eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul struct pipe_context *pipe = st->pipe; 739eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul struct pipe_screen *screen = pipe->screen; 740e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian 741e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian /* init sampler state once */ 742e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian memset(sampler, 0, sizeof(*sampler)); 743e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->wrap_s = PIPE_TEX_WRAP_CLAMP; 744e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->wrap_t = PIPE_TEX_WRAP_CLAMP; 745e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->wrap_r = PIPE_TEX_WRAP_CLAMP; 746e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->min_img_filter = PIPE_TEX_FILTER_NEAREST; 747e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->min_mip_filter = PIPE_TEX_MIPFILTER_NONE; 748e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->mag_img_filter = PIPE_TEX_FILTER_NEAREST; 749e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->normalized_coords = 1; 750e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian 7516a382250a10e7022e93b6be6fe4657445d85a568Brian /* init baseline rasterizer state once */ 752e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian memset(&st->bitmap.rasterizer, 0, sizeof(st->bitmap.rasterizer)); 753124e1345c9ba4abe17bb04b8781ec0fe803eda7bBrian st->bitmap.rasterizer.gl_rasterization_rules = 1; 7546a382250a10e7022e93b6be6fe4657445d85a568Brian st->bitmap.rasterizer.bypass_vs = 1; 755e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian 756eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul /* find a usable texture format */ 757eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul if (screen->is_format_supported(screen, PIPE_FORMAT_U_I8, PIPE_TEXTURE)) { 758eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul st->bitmap.tex_format = PIPE_FORMAT_U_I8; 759eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul } 760eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul else { 761eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul /* XXX support more formats */ 762eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul assert(0); 763eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul } 764eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul 765d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul /* alloc bitmap cache object */ 766d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul st->bitmap.cache = CALLOC_STRUCT(bitmap_cache); 767d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul 768d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul reset_cache(st); 769c62b197b528293abb56b099503344e3cdd7d6c40Brian} 770c62b197b528293abb56b099503344e3cdd7d6c40Brian 771c62b197b528293abb56b099503344e3cdd7d6c40Brian 772c62b197b528293abb56b099503344e3cdd7d6c40Brian/** Per-context tear-down */ 7733ece9ace540447c4f0d340a6f9f27980b54f83fbBrianvoid 7743ece9ace540447c4f0d340a6f9f27980b54f83fbBrianst_destroy_bitmap(struct st_context *st) 7753ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 7763ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_context *pipe = st->pipe; 7773ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 77833f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul#if 0 77922a3d022542fed267d48b48a44e10226d55c8afdBrian Paul if (st->bitmap.combined_prog) { 78022a3d022542fed267d48b48a44e10226d55c8afdBrian Paul st_delete_program(st->ctx, &st->bitmap.combined_prog->Base.Base); 78122a3d022542fed267d48b48a44e10226d55c8afdBrian Paul } 78222a3d022542fed267d48b48a44e10226d55c8afdBrian Paul 78322a3d022542fed267d48b48a44e10226d55c8afdBrian Paul if (st->bitmap.program) { 78422a3d022542fed267d48b48a44e10226d55c8afdBrian Paul st_delete_program(st->ctx, &st->bitmap.program->Base.Base); 78522a3d022542fed267d48b48a44e10226d55c8afdBrian Paul } 78633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul#endif 7873ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (st->bitmap.vs) { 788a770d40c3d4977e2c134661b5d8facaea446b6eaBrian Paul cso_delete_vertex_shader(st->cso_context, st->bitmap.vs); 7893ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vs = NULL; 7903ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 791c62b197b528293abb56b099503344e3cdd7d6c40Brian 7923ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (st->bitmap.vbuf) { 7933ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pipe->winsys->buffer_destroy(pipe->winsys, st->bitmap.vbuf); 7943ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vbuf = NULL; 7953ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 7963ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 797c62b197b528293abb56b099503344e3cdd7d6c40Brian if (st->bitmap.cache) { 798c62b197b528293abb56b099503344e3cdd7d6c40Brian pipe_texture_release(&st->bitmap.cache->texture); 799c62b197b528293abb56b099503344e3cdd7d6c40Brian FREE(st->bitmap.cache); 800c62b197b528293abb56b099503344e3cdd7d6c40Brian st->bitmap.cache = NULL; 801c62b197b528293abb56b099503344e3cdd7d6c40Brian } 802c62b197b528293abb56b099503344e3cdd7d6c40Brian} 803