st_cb_bitmap.c revision 5c1a78b7a85d23ad1358b34d03a0002a19483655
13ece9ace540447c4f0d340a6f9f27980b54f83fbBrian/************************************************************************** 23ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * 33ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. 43ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * All Rights Reserved. 53ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * 63ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Permission is hereby granted, free of charge, to any person obtaining a 73ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * copy of this software and associated documentation files (the 83ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * "Software"), to deal in the Software without restriction, including 93ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * without limitation the rights to use, copy, modify, merge, publish, 103ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * distribute, sub license, and/or sell copies of the Software, and to 113ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * permit persons to whom the Software is furnished to do so, subject to 123ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * the following conditions: 133ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * 143ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * The above copyright notice and this permission notice (including the 153ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * next paragraph) shall be included in all copies or substantial portions 163ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * of the Software. 173ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * 183ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 193ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 203ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 213ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR 223ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 233ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 243ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 253ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * 263ece9ace540447c4f0d340a6f9f27980b54f83fbBrian **************************************************************************/ 273ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 283ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* 293ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Authors: 303ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Brian Paul 313ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 323ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 333ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "main/imports.h" 343ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "main/image.h" 35f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul#include "main/bufferobj.h" 363ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "main/macros.h" 373ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "main/texformat.h" 383ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "shader/program.h" 393ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "shader/prog_parameter.h" 403ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "shader/prog_print.h" 413ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 423ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "st_context.h" 433ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "st_atom.h" 443ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "st_atom_constbuf.h" 453ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "st_program.h" 463ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "st_cb_bitmap.h" 4722a3d022542fed267d48b48a44e10226d55c8afdBrian Paul#include "st_cb_program.h" 483ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "st_mesa_to_tgsi.h" 493ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "st_texture.h" 503ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "pipe/p_context.h" 513ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "pipe/p_defines.h" 523ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "pipe/p_inlines.h" 533ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "util/p_tile.h" 543ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "util/u_draw_quad.h" 553ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "util/u_simple_shaders.h" 563ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "shader/prog_instruction.h" 573ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "cso_cache/cso_context.h" 583ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 593ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 603ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 613ece9ace540447c4f0d340a6f9f27980b54f83fbBrian/** 626b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * glBitmaps are drawn as textured quads. The user's bitmap pattern 636b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * is stored in a texture image. An alpha8 texture format is used. 646b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * The fragment shader samples a bit (texel) from the texture, then 656b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * discards the fragment if the bit is off. 666b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * 676b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * Note that we actually store the inverse image of the bitmap to 686b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * simplify the fragment program. An "on" bit gets stored as texel=0x0 696b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * and an "off" bit is stored as texel=0xff. Then we kill the 706b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * fragment if the negated texel value is less than zero. 716b0be38a6cfecd2babc7175b0877bed522ca9f72Brian */ 726b0be38a6cfecd2babc7175b0877bed522ca9f72Brian 736b0be38a6cfecd2babc7175b0877bed522ca9f72Brian 746b0be38a6cfecd2babc7175b0877bed522ca9f72Brian/** 75c62b197b528293abb56b099503344e3cdd7d6c40Brian * The bitmap cache attempts to accumulate multiple glBitmap calls in a 76c62b197b528293abb56b099503344e3cdd7d6c40Brian * buffer which is then rendered en mass upon a flush, state change, etc. 77c62b197b528293abb56b099503344e3cdd7d6c40Brian * A wide, short buffer is used to target the common case of a series 78c62b197b528293abb56b099503344e3cdd7d6c40Brian * of glBitmap calls being used to draw text. 79c62b197b528293abb56b099503344e3cdd7d6c40Brian */ 807292db2138001b48bba006cc08e9ff7091d16559Brianstatic GLboolean UseBitmapCache = GL_TRUE; 81c62b197b528293abb56b099503344e3cdd7d6c40Brian 82c62b197b528293abb56b099503344e3cdd7d6c40Brian 83c62b197b528293abb56b099503344e3cdd7d6c40Brian#define BITMAP_CACHE_WIDTH 512 84c62b197b528293abb56b099503344e3cdd7d6c40Brian#define BITMAP_CACHE_HEIGHT 32 85c62b197b528293abb56b099503344e3cdd7d6c40Brian 86c62b197b528293abb56b099503344e3cdd7d6c40Brianstruct bitmap_cache 87c62b197b528293abb56b099503344e3cdd7d6c40Brian{ 88c62b197b528293abb56b099503344e3cdd7d6c40Brian /** Window pos to render the cached image */ 89c62b197b528293abb56b099503344e3cdd7d6c40Brian GLint xpos, ypos; 90737e34aee598f32f8ff078ba823ed149b282ebc8Brian /** Bounds of region used in window coords */ 91737e34aee598f32f8ff078ba823ed149b282ebc8Brian GLint xmin, ymin, xmax, ymax; 92d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul 93318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul GLfloat color[4]; 94318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul 95c62b197b528293abb56b099503344e3cdd7d6c40Brian struct pipe_texture *texture; 96d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul struct pipe_surface *surf; 97d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul 98737e34aee598f32f8ff078ba823ed149b282ebc8Brian GLboolean empty; 99d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul 100737e34aee598f32f8ff078ba823ed149b282ebc8Brian /** An I8 texture image: */ 101d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul ubyte *buffer; 102c62b197b528293abb56b099503344e3cdd7d6c40Brian}; 103c62b197b528293abb56b099503344e3cdd7d6c40Brian 104c62b197b528293abb56b099503344e3cdd7d6c40Brian 105c62b197b528293abb56b099503344e3cdd7d6c40Brian 106c62b197b528293abb56b099503344e3cdd7d6c40Brian 107c62b197b528293abb56b099503344e3cdd7d6c40Brian/** 1083ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Make fragment program for glBitmap: 1093ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Sample the texture and kill the fragment if the bit is 0. 1103ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * This program will be combined with the user's fragment program. 1113ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 1123ece9ace540447c4f0d340a6f9f27980b54f83fbBrianstatic struct st_fragment_program * 11333f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paulmake_bitmap_fragment_program(GLcontext *ctx, GLuint samplerIndex) 1143ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 1153ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct st_fragment_program *stfp; 1163ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct gl_program *p; 1173ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLuint ic = 0; 1183ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1193ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p = ctx->Driver.NewProgram(ctx, GL_FRAGMENT_PROGRAM_ARB, 0); 1203ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (!p) 1213ece9ace540447c4f0d340a6f9f27980b54f83fbBrian return NULL; 1223ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1236b0be38a6cfecd2babc7175b0877bed522ca9f72Brian p->NumInstructions = 3; 1243ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1253ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions = _mesa_alloc_instructions(p->NumInstructions); 1263ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (!p->Instructions) { 1273ece9ace540447c4f0d340a6f9f27980b54f83fbBrian ctx->Driver.DeleteProgram(ctx, p); 1283ece9ace540447c4f0d340a6f9f27980b54f83fbBrian return NULL; 1293ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 1303ece9ace540447c4f0d340a6f9f27980b54f83fbBrian _mesa_init_instructions(p->Instructions, p->NumInstructions); 1313ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1323ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* TEX tmp0, fragment.texcoord[0], texture[0], 2D; */ 1333ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].Opcode = OPCODE_TEX; 1343ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].DstReg.File = PROGRAM_TEMPORARY; 1353ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].DstReg.Index = 0; 1363ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].SrcReg[0].File = PROGRAM_INPUT; 1373ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].SrcReg[0].Index = FRAG_ATTRIB_TEX0; 13833f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul p->Instructions[ic].TexSrcUnit = samplerIndex; 1393ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].TexSrcTarget = TEXTURE_2D_INDEX; 1403ece9ace540447c4f0d340a6f9f27980b54f83fbBrian ic++; 1413ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1426b0be38a6cfecd2babc7175b0877bed522ca9f72Brian /* KIL if -tmp0 < 0 # texel=0 -> keep / texel=0 -> discard */ 1433ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].Opcode = OPCODE_KIL; 1443ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].SrcReg[0].File = PROGRAM_TEMPORARY; 1453ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].SrcReg[0].Index = 0; 1466b0be38a6cfecd2babc7175b0877bed522ca9f72Brian p->Instructions[ic].SrcReg[0].NegateBase = NEGATE_XYZW; 1473ece9ace540447c4f0d340a6f9f27980b54f83fbBrian ic++; 1483ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1493ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* END; */ 1503ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic++].Opcode = OPCODE_END; 1513ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1523ece9ace540447c4f0d340a6f9f27980b54f83fbBrian assert(ic == p->NumInstructions); 1533ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1543ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->InputsRead = FRAG_BIT_TEX0; 1553ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->OutputsWritten = 0x0; 15633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul p->SamplersUsed = (1 << samplerIndex); 1573ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1583ece9ace540447c4f0d340a6f9f27980b54f83fbBrian stfp = (struct st_fragment_program *) p; 1593ece9ace540447c4f0d340a6f9f27980b54f83fbBrian stfp->Base.UsesKill = GL_TRUE; 1603ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st_translate_fragment_program(ctx->st, stfp, NULL); 1613ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1623ece9ace540447c4f0d340a6f9f27980b54f83fbBrian return stfp; 1633ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 1643ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1653ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 16633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paulstatic int 16733f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paulfind_free_bit(uint bitfield) 16833f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul{ 16933f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul int i; 17033f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul for (i = 0; i < 32; i++) { 17133f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul if ((bitfield & (1 << i)) == 0) { 17233f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul return i; 17333f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul } 17433f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul } 17533f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul return -1; 17633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul} 17733f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul 17833f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul 1793ece9ace540447c4f0d340a6f9f27980b54f83fbBrian/** 1803ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Combine basic bitmap fragment program with the user-defined program. 1813ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 1823ece9ace540447c4f0d340a6f9f27980b54f83fbBrianstatic struct st_fragment_program * 1833ece9ace540447c4f0d340a6f9f27980b54f83fbBriancombined_bitmap_fragment_program(GLcontext *ctx) 1843ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 1853ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct st_context *st = ctx->st; 18633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul struct st_fragment_program *stfp = st->fp; 1873ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 18833f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul if (!stfp->bitmap_program) { 18933f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul /* 19033f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul * Generate new program which is the user-defined program prefixed 19133f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul * with the bitmap sampler/kill instructions. 1923ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 19333f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul struct st_fragment_program *bitmap_prog; 19433f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul uint sampler; 1953ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 19633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul sampler = find_free_bit(st->fp->Base.Base.SamplersUsed); 19733f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul bitmap_prog = make_bitmap_fragment_program(ctx, sampler); 19833f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul 19933f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul stfp->bitmap_program = (struct st_fragment_program *) 20033f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul _mesa_combine_programs(ctx, 20133f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul &bitmap_prog->Base.Base, &stfp->Base.Base); 20233f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul stfp->bitmap_program->bitmap_sampler = sampler; 203ac09b0e0eb30f6691e35638f210c04ac0f867ea8Brian Paul 204ac09b0e0eb30f6691e35638f210c04ac0f867ea8Brian Paul /* done with this after combining */ 205ac09b0e0eb30f6691e35638f210c04ac0f867ea8Brian Paul st_reference_fragprog(st, &bitmap_prog, NULL); 206ac09b0e0eb30f6691e35638f210c04ac0f867ea8Brian Paul 2073ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#if 0 2083ece9ace540447c4f0d340a6f9f27980b54f83fbBrian { 20933f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul struct gl_program *p = &stfp->bitmap_program->Base.Base; 2103ece9ace540447c4f0d340a6f9f27980b54f83fbBrian printf("Combined bitmap program:\n"); 2113ece9ace540447c4f0d340a6f9f27980b54f83fbBrian _mesa_print_program(p); 2123ece9ace540447c4f0d340a6f9f27980b54f83fbBrian printf("InputsRead: 0x%x\n", p->InputsRead); 2133ece9ace540447c4f0d340a6f9f27980b54f83fbBrian printf("OutputsWritten: 0x%x\n", p->OutputsWritten); 2143ece9ace540447c4f0d340a6f9f27980b54f83fbBrian _mesa_print_parameter_list(p->Parameters); 2153ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2163ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#endif 2173ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2183ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* translate to TGSI tokens */ 21933f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul st_translate_fragment_program(st, stfp->bitmap_program, NULL); 2203ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2213ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2223ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* Ideally we'd have updated the pipe constants during the normal 2233ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * st/atom mechanism. But we can't since this is specific to glBitmap. 2243ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 2253ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st_upload_constants(st, stfp->Base.Base.Parameters, PIPE_SHADER_FRAGMENT); 2263ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 22733f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul return stfp->bitmap_program; 2283ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 2293ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2303ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2313ece9ace540447c4f0d340a6f9f27980b54f83fbBrian/** 2327146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * Copy user-provide bitmap bits into texture buffer, expanding 2337146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * bits into texels. 2347146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * "On" bits will set texels to 0xff. 2357146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * "Off" bits will not modify texels. 2367146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * Note that the image is actually going to be upside down in 2377146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * the texture. We deal with that with texcoords. 2383ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 2397146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paulstatic void 2407146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paulunpack_bitmap(struct st_context *st, 2417146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul GLint px, GLint py, GLsizei width, GLsizei height, 2427146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul const struct gl_pixelstore_attrib *unpack, 2437146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul const GLubyte *bitmap, 2447146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul ubyte *destBuffer, uint destStride) 2453ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 2467146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul GLint row, col; 247f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul 2487146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul#define SET_PIXEL(COL, ROW) \ 2497146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul destBuffer[(py + (ROW)) * destStride + px + (COL)] = 0x0; 2503ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2513ece9ace540447c4f0d340a6f9f27980b54f83fbBrian for (row = 0; row < height; row++) { 2523ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const GLubyte *src = (const GLubyte *) _mesa_image_address2d(unpack, 2533ece9ace540447c4f0d340a6f9f27980b54f83fbBrian bitmap, width, height, GL_COLOR_INDEX, GL_BITMAP, row, 0); 2543ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2553ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (unpack->LsbFirst) { 2563ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* Lsb first */ 2573ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLubyte mask = 1U << (unpack->SkipPixels & 0x7); 2583ece9ace540447c4f0d340a6f9f27980b54f83fbBrian for (col = 0; col < width; col++) { 2593ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2607146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul if (*src & mask) { 2617146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul SET_PIXEL(col, row); 2627146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul } 2633ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2643ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (mask == 128U) { 2653ece9ace540447c4f0d340a6f9f27980b54f83fbBrian src++; 2663ece9ace540447c4f0d340a6f9f27980b54f83fbBrian mask = 1U; 2673ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2683ece9ace540447c4f0d340a6f9f27980b54f83fbBrian else { 2693ece9ace540447c4f0d340a6f9f27980b54f83fbBrian mask = mask << 1; 2703ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2713ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2723ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2733ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* get ready for next row */ 2743ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (mask != 1) 2753ece9ace540447c4f0d340a6f9f27980b54f83fbBrian src++; 2763ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2773ece9ace540447c4f0d340a6f9f27980b54f83fbBrian else { 2783ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* Msb first */ 2793ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLubyte mask = 128U >> (unpack->SkipPixels & 0x7); 2803ece9ace540447c4f0d340a6f9f27980b54f83fbBrian for (col = 0; col < width; col++) { 2813ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2827146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul if (*src & mask) { 2837146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul SET_PIXEL(col, row); 2847146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul } 2853ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2863ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (mask == 1U) { 2873ece9ace540447c4f0d340a6f9f27980b54f83fbBrian src++; 2883ece9ace540447c4f0d340a6f9f27980b54f83fbBrian mask = 128U; 2893ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2903ece9ace540447c4f0d340a6f9f27980b54f83fbBrian else { 2913ece9ace540447c4f0d340a6f9f27980b54f83fbBrian mask = mask >> 1; 2923ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2933ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2943ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2953ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* get ready for next row */ 2963ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (mask != 128) 2973ece9ace540447c4f0d340a6f9f27980b54f83fbBrian src++; 2983ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2993ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3003ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } /* row */ 3013ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3027146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul#undef SET_PIXEL 3037146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul} 3047146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 3057146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 3067146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul/** 3077146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * Create a texture which represents a bitmap image. 3087146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul */ 3097146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paulstatic struct pipe_texture * 3107146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paulmake_bitmap_texture(GLcontext *ctx, GLsizei width, GLsizei height, 3117146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul const struct gl_pixelstore_attrib *unpack, 3127146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul const GLubyte *bitmap) 3137146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul{ 3147146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul struct pipe_context *pipe = ctx->st->pipe; 3157146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul struct pipe_screen *screen = pipe->screen; 3167146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul struct pipe_surface *surface; 3177146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul ubyte *dest; 3187146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul struct pipe_texture *pt; 3197146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 3207146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul /* PBO source... */ 3217146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul bitmap = _mesa_map_bitmap_pbo(ctx, unpack, bitmap); 3227146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul if (!bitmap) { 3237146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul return NULL; 3247146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul } 3257146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 3267146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul /** 3277146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * Create texture to hold bitmap pattern. 3287146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul */ 3297146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul pt = st_texture_create(ctx->st, PIPE_TEXTURE_2D, ctx->st->bitmap.tex_format, 330a73ae3d5eb8419feab5aea26573aa41b72f941ebKeith Whitwell 0, width, height, 1, 0, 331a73ae3d5eb8419feab5aea26573aa41b72f941ebKeith Whitwell PIPE_TEXTURE_USAGE_SAMPLER); 3327146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul if (!pt) { 3337146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul _mesa_unmap_bitmap_pbo(ctx, unpack); 3347146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul return NULL; 3357146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul } 3367146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 337c9ed86a96483063f3d6789ed16645a3dca77d726Keith Whitwell surface = screen->get_tex_surface(screen, pt, 0, 0, 0, 338c9ed86a96483063f3d6789ed16645a3dca77d726Keith Whitwell PIPE_BUFFER_USAGE_CPU_WRITE); 3397146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 3407146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul /* map texture surface */ 341c9ed86a96483063f3d6789ed16645a3dca77d726Keith Whitwell dest = screen->surface_map(screen, surface, PIPE_BUFFER_USAGE_CPU_WRITE); 3427146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 3437146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul /* Put image into texture surface */ 3447146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul memset(dest, 0xff, height * surface->pitch); 3457146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul unpack_bitmap(ctx->st, 0, 0, width, height, unpack, bitmap, 3467146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul dest, surface->pitch); 3477146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 348f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul _mesa_unmap_bitmap_pbo(ctx, unpack); 349f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul 3503ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* Release surface */ 351c9ed86a96483063f3d6789ed16645a3dca77d726Keith Whitwell screen->surface_unmap(screen, surface); 3523ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pipe_surface_reference(&surface, NULL); 3533ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3543ece9ace540447c4f0d340a6f9f27980b54f83fbBrian return pt; 3553ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 3563ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3573ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3583ece9ace540447c4f0d340a6f9f27980b54f83fbBrianstatic void 3593ece9ace540447c4f0d340a6f9f27980b54f83fbBriansetup_bitmap_vertex_data(struct st_context *st, 3603ece9ace540447c4f0d340a6f9f27980b54f83fbBrian int x, int y, int width, int height, 3613ece9ace540447c4f0d340a6f9f27980b54f83fbBrian float z, const float color[4]) 3623ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 3633ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_context *pipe = st->pipe; 3643ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const struct gl_framebuffer *fb = st->ctx->DrawBuffer; 36553174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat fb_width = (GLfloat)fb->Width; 36653174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat fb_height = (GLfloat)fb->Height; 36753174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat x0 = (GLfloat)x; 36853174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat x1 = (GLfloat)(x + width); 36953174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat y0 = (GLfloat)y; 37053174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat y1 = (GLfloat)(y + height); 37153174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat sLeft = (GLfloat)0.0, sRight = (GLfloat)1.0; 37253174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat tTop = (GLfloat)0.0, tBot = (GLfloat)1.0 - tTop; 37353174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat clip_x0 = (GLfloat)(x0 / fb_width * 2.0 - 1.0); 37453174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat clip_y0 = (GLfloat)(y0 / fb_height * 2.0 - 1.0); 37553174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat clip_x1 = (GLfloat)(x1 / fb_width * 2.0 - 1.0); 37653174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat clip_y1 = (GLfloat)(y1 / fb_height * 2.0 - 1.0); 3773ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLuint i; 3783ece9ace540447c4f0d340a6f9f27980b54f83fbBrian void *buf; 3793ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3803ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (!st->bitmap.vbuf) { 38199fba5466bfd14c4e052041c0571821be529e762Brian Paul st->bitmap.vbuf = pipe_buffer_create(pipe, 32, PIPE_BUFFER_USAGE_VERTEX, 38299fba5466bfd14c4e052041c0571821be529e762Brian Paul sizeof(st->bitmap.vertices)); 3833ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 3843ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 385e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian /* Positions are in clip coords since we need to do clipping in case 386e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian * the bitmap quad goes beyond the window bounds. 387e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian */ 388e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[0][0][0] = clip_x0; 389e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[0][0][1] = clip_y0; 3903ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[0][2][0] = sLeft; 3913ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[0][2][1] = tTop; 3923ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 393e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[1][0][0] = clip_x1; 394e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[1][0][1] = clip_y0; 3953ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[1][2][0] = sRight; 3963ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[1][2][1] = tTop; 3973ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 398e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[2][0][0] = clip_x1; 399e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[2][0][1] = clip_y1; 4003ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[2][2][0] = sRight; 4013ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[2][2][1] = tBot; 4023ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 403e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[3][0][0] = clip_x0; 404e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[3][0][1] = clip_y1; 4053ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[3][2][0] = sLeft; 4063ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[3][2][1] = tBot; 4073ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4083ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* same for all verts: */ 4093ece9ace540447c4f0d340a6f9f27980b54f83fbBrian for (i = 0; i < 4; i++) { 4103ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][0][2] = z; 4113ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][0][3] = 1.0; 4123ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][1][0] = color[0]; 4133ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][1][1] = color[1]; 4143ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][1][2] = color[2]; 4153ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][1][3] = color[3]; 4163ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][2][2] = 0.0; /*R*/ 4173ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][2][3] = 1.0; /*Q*/ 4183ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 4193ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4203ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* put vertex data into vbuf */ 42199fba5466bfd14c4e052041c0571821be529e762Brian Paul buf = pipe_buffer_map(pipe, st->bitmap.vbuf, PIPE_BUFFER_USAGE_CPU_WRITE); 4223ece9ace540447c4f0d340a6f9f27980b54f83fbBrian memcpy(buf, st->bitmap.vertices, sizeof(st->bitmap.vertices)); 42399fba5466bfd14c4e052041c0571821be529e762Brian Paul pipe_buffer_unmap(pipe, st->bitmap.vbuf); 4243ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 4253ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4263ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4273ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4283ece9ace540447c4f0d340a6f9f27980b54f83fbBrian/** 4293ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Render a glBitmap by drawing a textured quad 4303ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 4313ece9ace540447c4f0d340a6f9f27980b54f83fbBrianstatic void 4323ece9ace540447c4f0d340a6f9f27980b54f83fbBriandraw_bitmap_quad(GLcontext *ctx, GLint x, GLint y, GLfloat z, 4333ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLsizei width, GLsizei height, 434318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul struct pipe_texture *pt, 435318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul const GLfloat *color) 4363ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 4373ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct st_context *st = ctx->st; 4383ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_context *pipe = ctx->st->pipe; 4393ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct cso_context *cso = ctx->st->cso_context; 440c62b197b528293abb56b099503344e3cdd7d6c40Brian struct st_fragment_program *stfp; 4413ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLuint maxSize; 4423ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 443c62b197b528293abb56b099503344e3cdd7d6c40Brian stfp = combined_bitmap_fragment_program(ctx); 444c62b197b528293abb56b099503344e3cdd7d6c40Brian 4453ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* limit checks */ 446c62b197b528293abb56b099503344e3cdd7d6c40Brian /* XXX if the bitmap is larger than the max texture size, break 4473ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * it up into chunks. 4483ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 4493ece9ace540447c4f0d340a6f9f27980b54f83fbBrian maxSize = 1 << (pipe->screen->get_param(pipe->screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS) - 1); 45053174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca assert(width <= (GLsizei)maxSize); 45153174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca assert(height <= (GLsizei)maxSize); 4523ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4533ece9ace540447c4f0d340a6f9f27980b54f83fbBrian cso_save_rasterizer(cso); 454d246274b9c48c01b61490f0a76c22aebb8e64e1eBrian Paul cso_save_samplers(cso); 455ddc0f91bfc571dcd05c13f094c179b4250e53bccBrian cso_save_sampler_textures(cso); 456e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian cso_save_viewport(cso); 45765efe807b9067aa07b382e3c4d9cea6222c5fc6bMichel Dänzer cso_save_fragment_shader(cso); 45865efe807b9067aa07b382e3c4d9cea6222c5fc6bMichel Dänzer cso_save_vertex_shader(cso); 4593ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4603ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* rasterizer state: just scissor */ 461e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.rasterizer.scissor = ctx->Scissor.Enabled; 462e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian cso_set_rasterizer(cso, &st->bitmap.rasterizer); 4633ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4643ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* fragment shader state: TEX lookup program */ 46501dfa6cde157321f565bab949f23f367ed20fa0eKeith Whitwell cso_set_fragment_shader_handle(cso, stfp->driver_shader); 4663ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4673ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* vertex shader state: position + texcoord pass-through */ 46801dfa6cde157321f565bab949f23f367ed20fa0eKeith Whitwell cso_set_vertex_shader_handle(cso, st->bitmap.vs); 4693ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 47033f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul /* user samplers, plus our bitmap sampler */ 47133f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul { 47233f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul struct pipe_sampler_state *samplers[PIPE_MAX_SAMPLERS]; 47333f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul uint num = MAX2(stfp->bitmap_sampler + 1, st->state.num_samplers); 47433f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul uint i; 47533f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul for (i = 0; i < st->state.num_samplers; i++) { 47633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul samplers[i] = &st->state.samplers[i]; 47733f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul } 47833f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul samplers[stfp->bitmap_sampler] = &st->bitmap.sampler; 47933f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul cso_set_samplers(cso, num, (const struct pipe_sampler_state **) samplers); } 48033f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul 48133f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul /* user textures, plus the bitmap texture */ 48233f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul { 48333f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul struct pipe_texture *textures[PIPE_MAX_SAMPLERS]; 48433f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul uint num = MAX2(stfp->bitmap_sampler + 1, st->state.num_textures); 48533f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul memcpy(textures, st->state.sampler_texture, sizeof(textures)); 48633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul textures[stfp->bitmap_sampler] = pt; 48733f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul cso_set_sampler_textures(cso, num, textures); 48833f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul } 489e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian 490e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian /* viewport state: viewport matching window dims */ 4913ece9ace540447c4f0d340a6f9f27980b54f83fbBrian { 492e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const struct gl_framebuffer *fb = st->ctx->DrawBuffer; 493e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const GLboolean invert = (st_fb_orientation(fb) == Y_0_TOP); 49453174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat width = (GLfloat)fb->Width; 49553174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat height = (GLfloat)fb->Height; 496e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian struct pipe_viewport_state vp; 4975c1a78b7a85d23ad1358b34d03a0002a19483655José Fonseca vp.scale[0] = 0.5f * width; 4985c1a78b7a85d23ad1358b34d03a0002a19483655José Fonseca vp.scale[1] = height * (invert ? -0.5f : 0.5f); 4995c1a78b7a85d23ad1358b34d03a0002a19483655José Fonseca vp.scale[2] = 1.0f; 5005c1a78b7a85d23ad1358b34d03a0002a19483655José Fonseca vp.scale[3] = 1.0f; 5015c1a78b7a85d23ad1358b34d03a0002a19483655José Fonseca vp.translate[0] = 0.5f * width; 5025c1a78b7a85d23ad1358b34d03a0002a19483655José Fonseca vp.translate[1] = 0.5f * height; 5035c1a78b7a85d23ad1358b34d03a0002a19483655José Fonseca vp.translate[2] = 0.0f; 5045c1a78b7a85d23ad1358b34d03a0002a19483655José Fonseca vp.translate[3] = 0.0f; 505e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian cso_set_viewport(cso, &vp); 5063ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 5073ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 5083ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* draw textured quad */ 5093ece9ace540447c4f0d340a6f9f27980b54f83fbBrian setup_bitmap_vertex_data(st, x, y, width, height, 5103ece9ace540447c4f0d340a6f9f27980b54f83fbBrian ctx->Current.RasterPos[2], 511318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul color); 5123ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 5133ece9ace540447c4f0d340a6f9f27980b54f83fbBrian util_draw_vertex_buffer(pipe, st->bitmap.vbuf, 5143ece9ace540447c4f0d340a6f9f27980b54f83fbBrian PIPE_PRIM_TRIANGLE_FAN, 5153ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4, /* verts */ 5163ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3); /* attribs/vert */ 5173ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 5183ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 5193ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* restore state */ 5203ece9ace540447c4f0d340a6f9f27980b54f83fbBrian cso_restore_rasterizer(cso); 5213ece9ace540447c4f0d340a6f9f27980b54f83fbBrian cso_restore_samplers(cso); 522ddc0f91bfc571dcd05c13f094c179b4250e53bccBrian cso_restore_sampler_textures(cso); 523e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian cso_restore_viewport(cso); 524fd4acd6fdaaad4871327d081f5501680ed9da2edMichel Dänzer cso_restore_fragment_shader(cso); 525fd4acd6fdaaad4871327d081f5501680ed9da2edMichel Dänzer cso_restore_vertex_shader(cso); 5263ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 5273ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 5283ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 529737e34aee598f32f8ff078ba823ed149b282ebc8Brianstatic void 530737e34aee598f32f8ff078ba823ed149b282ebc8Brianreset_cache(struct st_context *st) 531737e34aee598f32f8ff078ba823ed149b282ebc8Brian{ 532d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul struct pipe_context *pipe = st->pipe; 533d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul struct pipe_screen *screen = pipe->screen; 534d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul struct bitmap_cache *cache = st->bitmap.cache; 535737e34aee598f32f8ff078ba823ed149b282ebc8Brian 536d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul //memset(cache->buffer, 0xff, sizeof(cache->buffer)); 537d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->empty = GL_TRUE; 538737e34aee598f32f8ff078ba823ed149b282ebc8Brian 539d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->xmin = 1000000; 540d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->xmax = -1000000; 541d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->ymin = 1000000; 542d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->ymax = -1000000; 5433ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 544d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul assert(!cache->texture); 545c62b197b528293abb56b099503344e3cdd7d6c40Brian 546d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul /* allocate a new texture */ 547d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->texture = st_texture_create(st, PIPE_TEXTURE_2D, 548d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul st->bitmap.tex_format, 0, 549d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul BITMAP_CACHE_WIDTH, BITMAP_CACHE_HEIGHT, 550a73ae3d5eb8419feab5aea26573aa41b72f941ebKeith Whitwell 1, 0, 551a73ae3d5eb8419feab5aea26573aa41b72f941ebKeith Whitwell PIPE_TEXTURE_USAGE_SAMPLER); 552c62b197b528293abb56b099503344e3cdd7d6c40Brian 553d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul /* Map the texture surface. 554d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul * Subsequent glBitmap calls will write into the texture image. 555d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul */ 556c9ed86a96483063f3d6789ed16645a3dca77d726Keith Whitwell cache->surf = screen->get_tex_surface(screen, cache->texture, 0, 0, 0, 557c9ed86a96483063f3d6789ed16645a3dca77d726Keith Whitwell PIPE_BUFFER_USAGE_CPU_WRITE); 558c9ed86a96483063f3d6789ed16645a3dca77d726Keith Whitwell cache->buffer = screen->surface_map(screen, cache->surf, 559c9ed86a96483063f3d6789ed16645a3dca77d726Keith Whitwell PIPE_BUFFER_USAGE_CPU_WRITE); 560d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul 561d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul /* init image to all 0xff */ 562d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul memset(cache->buffer, 0xff, BITMAP_CACHE_WIDTH * BITMAP_CACHE_HEIGHT); 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) { 57344a7bd0019b9af9ff01336df0aa6eb206f5dc2e9Michel Dänzer struct bitmap_cache *cache = st->bitmap.cache; 57444a7bd0019b9af9ff01336df0aa6eb206f5dc2e9Michel Dänzer 575985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul if (st->ctx->DrawBuffer) { 576985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul struct pipe_context *pipe = st->pipe; 577c9ed86a96483063f3d6789ed16645a3dca77d726Keith Whitwell struct pipe_screen *screen = pipe->screen; 578985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul 579985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul assert(cache->xmin <= cache->xmax); 580985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul /* 581985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul printf("flush size %d x %d at %d, %d\n", 582985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul cache->xmax - cache->xmin, 583985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul cache->ymax - cache->ymin, 584985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul cache->xpos, cache->ypos); 585985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul */ 586985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul 587d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul /* The texture surface has been mapped until now. 588d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul * So unmap and release the texture surface before drawing. 5896fb40092261b891b78e504f453fddf041f9efac6Brian Paul */ 590c9ed86a96483063f3d6789ed16645a3dca77d726Keith Whitwell screen->surface_unmap(screen, cache->surf); 591c9ed86a96483063f3d6789ed16645a3dca77d726Keith Whitwell screen->tex_surface_release(screen, &cache->surf); 5926fb40092261b891b78e504f453fddf041f9efac6Brian Paul 593985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul draw_bitmap_quad(st->ctx, 594985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul cache->xpos, 595985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul cache->ypos, 596985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul st->ctx->Current.RasterPos[2], 597985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul BITMAP_CACHE_WIDTH, BITMAP_CACHE_HEIGHT, 598318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul cache->texture, 599318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul cache->color); 600985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul } 60144a7bd0019b9af9ff01336df0aa6eb206f5dc2e9Michel Dänzer 60244a7bd0019b9af9ff01336df0aa6eb206f5dc2e9Michel Dänzer /* release/free the texture */ 60344a7bd0019b9af9ff01336df0aa6eb206f5dc2e9Michel Dänzer pipe_texture_reference(&cache->texture, NULL); 60444a7bd0019b9af9ff01336df0aa6eb206f5dc2e9Michel Dänzer 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 px = -999, py; 622c62b197b528293abb56b099503344e3cdd7d6c40Brian 623c62b197b528293abb56b099503344e3cdd7d6c40Brian if (width > BITMAP_CACHE_WIDTH || 624c62b197b528293abb56b099503344e3cdd7d6c40Brian height > BITMAP_CACHE_HEIGHT) 625c62b197b528293abb56b099503344e3cdd7d6c40Brian return GL_FALSE; /* too big to cache */ 626c62b197b528293abb56b099503344e3cdd7d6c40Brian 627737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (!cache->empty) { 628737e34aee598f32f8ff078ba823ed149b282ebc8Brian px = x - cache->xpos; /* pos in buffer */ 629737e34aee598f32f8ff078ba823ed149b282ebc8Brian py = y - cache->ypos; 630c62b197b528293abb56b099503344e3cdd7d6c40Brian if (px < 0 || px + width > BITMAP_CACHE_WIDTH || 631318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul py < 0 || py + height > BITMAP_CACHE_HEIGHT || 632318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul !TEST_EQ_4V(st->ctx->Current.RasterColor, cache->color)) { 633318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul /* This bitmap would extend beyond cache bounds, or the bitmap 634318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul * color is changing 635c62b197b528293abb56b099503344e3cdd7d6c40Brian * so flush and continue. 636c62b197b528293abb56b099503344e3cdd7d6c40Brian */ 637c62b197b528293abb56b099503344e3cdd7d6c40Brian st_flush_bitmap_cache(st); 638c62b197b528293abb56b099503344e3cdd7d6c40Brian } 639c62b197b528293abb56b099503344e3cdd7d6c40Brian } 640c62b197b528293abb56b099503344e3cdd7d6c40Brian 641737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (cache->empty) { 642c62b197b528293abb56b099503344e3cdd7d6c40Brian /* Initialize. Center bitmap vertically in the buffer. */ 643c62b197b528293abb56b099503344e3cdd7d6c40Brian px = 0; 644c62b197b528293abb56b099503344e3cdd7d6c40Brian py = (BITMAP_CACHE_HEIGHT - height) / 2; 645737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->xpos = x; 646737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->ypos = y - py; 647737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->empty = GL_FALSE; 648318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul COPY_4FV(cache->color, st->ctx->Current.RasterColor); 649c62b197b528293abb56b099503344e3cdd7d6c40Brian } 650c62b197b528293abb56b099503344e3cdd7d6c40Brian 651c62b197b528293abb56b099503344e3cdd7d6c40Brian assert(px != -999); 652c62b197b528293abb56b099503344e3cdd7d6c40Brian 653737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (x < cache->xmin) 654737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->xmin = x; 655737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (y < cache->ymin) 656737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->ymin = y; 657737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (x + width > cache->xmax) 658737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->xmax = x + width; 659737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (y + height > cache->ymax) 660737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->ymax = y + height; 661737e34aee598f32f8ff078ba823ed149b282ebc8Brian 6627146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul unpack_bitmap(st, px, py, width, height, unpack, bitmap, 6637146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul cache->buffer, BITMAP_CACHE_WIDTH); 664c62b197b528293abb56b099503344e3cdd7d6c40Brian 665c62b197b528293abb56b099503344e3cdd7d6c40Brian return GL_TRUE; /* accumulated */ 666c62b197b528293abb56b099503344e3cdd7d6c40Brian} 667c62b197b528293abb56b099503344e3cdd7d6c40Brian 668c62b197b528293abb56b099503344e3cdd7d6c40Brian 669c62b197b528293abb56b099503344e3cdd7d6c40Brian 670c62b197b528293abb56b099503344e3cdd7d6c40Brian/** 671c62b197b528293abb56b099503344e3cdd7d6c40Brian * Called via ctx->Driver.Bitmap() 672c62b197b528293abb56b099503344e3cdd7d6c40Brian */ 673c62b197b528293abb56b099503344e3cdd7d6c40Brianstatic void 6743ece9ace540447c4f0d340a6f9f27980b54f83fbBrianst_Bitmap(GLcontext *ctx, GLint x, GLint y, GLsizei width, GLsizei height, 6753ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const struct gl_pixelstore_attrib *unpack, const GLubyte *bitmap ) 6763ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 6773ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct st_context *st = ctx->st; 6783ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_texture *pt; 6793ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 68029d9f6b0d263b6ea2f89ea955d53d2671d9a6e43Brian Paul if (width == 0 || height == 0) 68129d9f6b0d263b6ea2f89ea955d53d2671d9a6e43Brian Paul return; 68229d9f6b0d263b6ea2f89ea955d53d2671d9a6e43Brian Paul 6831ecb2e4a7a5881d5a98679b421d78fd11c729ebcBrian Paul st_validate_state(st); 6841ecb2e4a7a5881d5a98679b421d78fd11c729ebcBrian Paul 6853ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (!st->bitmap.vs) { 6863ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* create pass-through vertex shader now */ 6873ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const uint semantic_names[] = { TGSI_SEMANTIC_POSITION, 6883ece9ace540447c4f0d340a6f9f27980b54f83fbBrian TGSI_SEMANTIC_COLOR, 6893ece9ace540447c4f0d340a6f9f27980b54f83fbBrian TGSI_SEMANTIC_GENERIC }; 6903ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const uint semantic_indexes[] = { 0, 0, 0 }; 6913ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vs = util_make_vertex_passthrough_shader(st->pipe, 3, 6923ece9ace540447c4f0d340a6f9f27980b54f83fbBrian semantic_names, 6936f8286163c79a8187c2912a9b673a6f11f4f60c6Brian semantic_indexes, 6946f8286163c79a8187c2912a9b673a6f11f4f60c6Brian &st->bitmap.vert_shader); 6953ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 6963ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 697c62b197b528293abb56b099503344e3cdd7d6c40Brian if (UseBitmapCache && accum_bitmap(st, x, y, width, height, unpack, bitmap)) 698c62b197b528293abb56b099503344e3cdd7d6c40Brian return; 6993ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 7003ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pt = make_bitmap_texture(ctx, width, height, unpack, bitmap); 7013ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (pt) { 7026f8286163c79a8187c2912a9b673a6f11f4f60c6Brian assert(pt->target == PIPE_TEXTURE_2D); 7033ece9ace540447c4f0d340a6f9f27980b54f83fbBrian draw_bitmap_quad(ctx, x, y, ctx->Current.RasterPos[2], 704318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul width, height, pt, 705318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul st->ctx->Current.RasterColor); 706d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul /* release/free the texture */ 7073ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pipe_texture_reference(&pt, NULL); 7083ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 7093ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 7103ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 7113ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 712c62b197b528293abb56b099503344e3cdd7d6c40Brian/** Per-context init */ 713c62b197b528293abb56b099503344e3cdd7d6c40Brianvoid 714c62b197b528293abb56b099503344e3cdd7d6c40Brianst_init_bitmap_functions(struct dd_function_table *functions) 7153ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 7163ece9ace540447c4f0d340a6f9f27980b54f83fbBrian functions->Bitmap = st_Bitmap; 7173ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 7183ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 7193ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 720c62b197b528293abb56b099503344e3cdd7d6c40Brian/** Per-context init */ 721c62b197b528293abb56b099503344e3cdd7d6c40Brianvoid 722c62b197b528293abb56b099503344e3cdd7d6c40Brianst_init_bitmap(struct st_context *st) 723c62b197b528293abb56b099503344e3cdd7d6c40Brian{ 724e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian struct pipe_sampler_state *sampler = &st->bitmap.sampler; 725eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul struct pipe_context *pipe = st->pipe; 726eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul struct pipe_screen *screen = pipe->screen; 727e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian 728e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian /* init sampler state once */ 729e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian memset(sampler, 0, sizeof(*sampler)); 730e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->wrap_s = PIPE_TEX_WRAP_CLAMP; 731e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->wrap_t = PIPE_TEX_WRAP_CLAMP; 732e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->wrap_r = PIPE_TEX_WRAP_CLAMP; 733e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->min_img_filter = PIPE_TEX_FILTER_NEAREST; 734e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->min_mip_filter = PIPE_TEX_MIPFILTER_NONE; 735e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->mag_img_filter = PIPE_TEX_FILTER_NEAREST; 736e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->normalized_coords = 1; 737e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian 7386a382250a10e7022e93b6be6fe4657445d85a568Brian /* init baseline rasterizer state once */ 739e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian memset(&st->bitmap.rasterizer, 0, sizeof(st->bitmap.rasterizer)); 740124e1345c9ba4abe17bb04b8781ec0fe803eda7bBrian st->bitmap.rasterizer.gl_rasterization_rules = 1; 7416a382250a10e7022e93b6be6fe4657445d85a568Brian st->bitmap.rasterizer.bypass_vs = 1; 742e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian 743eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul /* find a usable texture format */ 74454f94a790e4488445347abcff9a636a9c440d7f9Brian Paul if (screen->is_format_supported(screen, PIPE_FORMAT_I8_UNORM, PIPE_TEXTURE)) { 74554f94a790e4488445347abcff9a636a9c440d7f9Brian Paul st->bitmap.tex_format = PIPE_FORMAT_I8_UNORM; 746eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul } 747eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul else { 748eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul /* XXX support more formats */ 749eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul assert(0); 750eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul } 751eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul 752d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul /* alloc bitmap cache object */ 753d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul st->bitmap.cache = CALLOC_STRUCT(bitmap_cache); 754d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul 755d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul reset_cache(st); 756c62b197b528293abb56b099503344e3cdd7d6c40Brian} 757c62b197b528293abb56b099503344e3cdd7d6c40Brian 758c62b197b528293abb56b099503344e3cdd7d6c40Brian 759c62b197b528293abb56b099503344e3cdd7d6c40Brian/** Per-context tear-down */ 7603ece9ace540447c4f0d340a6f9f27980b54f83fbBrianvoid 7613ece9ace540447c4f0d340a6f9f27980b54f83fbBrianst_destroy_bitmap(struct st_context *st) 7623ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 7633ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_context *pipe = st->pipe; 764b4219e35e2de783ca03e53c311a8a56f8b633aa1Brian Paul struct pipe_screen *screen = pipe->screen; 765b4219e35e2de783ca03e53c311a8a56f8b633aa1Brian Paul struct bitmap_cache *cache = st->bitmap.cache; 766b4219e35e2de783ca03e53c311a8a56f8b633aa1Brian Paul 767b4219e35e2de783ca03e53c311a8a56f8b633aa1Brian Paul screen->surface_unmap(screen, cache->surf); 768b4219e35e2de783ca03e53c311a8a56f8b633aa1Brian Paul screen->tex_surface_release(screen, &cache->surf); 7693ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 7703ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (st->bitmap.vs) { 771a770d40c3d4977e2c134661b5d8facaea446b6eaBrian Paul cso_delete_vertex_shader(st->cso_context, st->bitmap.vs); 7723ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vs = NULL; 7733ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 774c62b197b528293abb56b099503344e3cdd7d6c40Brian 7753ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (st->bitmap.vbuf) { 77699fba5466bfd14c4e052041c0571821be529e762Brian Paul pipe_buffer_destroy(pipe, st->bitmap.vbuf); 7773ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vbuf = NULL; 7783ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 7793ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 780c62b197b528293abb56b099503344e3cdd7d6c40Brian if (st->bitmap.cache) { 781c62b197b528293abb56b099503344e3cdd7d6c40Brian pipe_texture_release(&st->bitmap.cache->texture); 782c62b197b528293abb56b099503344e3cdd7d6c40Brian FREE(st->bitmap.cache); 783c62b197b528293abb56b099503344e3cdd7d6c40Brian st->bitmap.cache = NULL; 784c62b197b528293abb56b099503344e3cdd7d6c40Brian } 785c62b197b528293abb56b099503344e3cdd7d6c40Brian} 786