st_cb_bitmap.c revision ec2b92f98c2e7f161521b447cc1d9a36bce3707c
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" 37ec2b92f98c2e7f161521b447cc1d9a36bce3707cBrian Paul#include "program/program.h" 38ec2b92f98c2e7f161521b447cc1d9a36bce3707cBrian Paul#include "program/prog_print.h" 393ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 403ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "st_context.h" 413ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "st_atom.h" 423ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "st_atom_constbuf.h" 433ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "st_program.h" 443ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "st_cb_bitmap.h" 453ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "st_texture.h" 46e50dd26ca6d0eb0d0f97c2780020ea16e3d4a687Thomas Hellstrom 473ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "pipe/p_context.h" 483ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "pipe/p_defines.h" 4928486880ca3ec39419ccee0cb1a3bedc9ef7117cJosé Fonseca#include "util/u_inlines.h" 503ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "util/u_draw_quad.h" 513ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "util/u_simple_shaders.h" 52ec2b92f98c2e7f161521b447cc1d9a36bce3707cBrian Paul#include "program/prog_instruction.h" 533ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#include "cso_cache/cso_context.h" 543ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 553ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 5614a92b26ff76550c5010ddf8bcbf5226dae5183fChia-I Wu#if FEATURE_drawpix 573ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 583ece9ace540447c4f0d340a6f9f27980b54f83fbBrian/** 596b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * glBitmaps are drawn as textured quads. The user's bitmap pattern 606b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * is stored in a texture image. An alpha8 texture format is used. 616b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * The fragment shader samples a bit (texel) from the texture, then 626b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * discards the fragment if the bit is off. 636b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * 646b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * Note that we actually store the inverse image of the bitmap to 656b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * simplify the fragment program. An "on" bit gets stored as texel=0x0 666b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * and an "off" bit is stored as texel=0xff. Then we kill the 676b0be38a6cfecd2babc7175b0877bed522ca9f72Brian * fragment if the negated texel value is less than zero. 686b0be38a6cfecd2babc7175b0877bed522ca9f72Brian */ 696b0be38a6cfecd2babc7175b0877bed522ca9f72Brian 706b0be38a6cfecd2babc7175b0877bed522ca9f72Brian 716b0be38a6cfecd2babc7175b0877bed522ca9f72Brian/** 72c62b197b528293abb56b099503344e3cdd7d6c40Brian * The bitmap cache attempts to accumulate multiple glBitmap calls in a 73c62b197b528293abb56b099503344e3cdd7d6c40Brian * buffer which is then rendered en mass upon a flush, state change, etc. 74c62b197b528293abb56b099503344e3cdd7d6c40Brian * A wide, short buffer is used to target the common case of a series 75c62b197b528293abb56b099503344e3cdd7d6c40Brian * of glBitmap calls being used to draw text. 76c62b197b528293abb56b099503344e3cdd7d6c40Brian */ 777292db2138001b48bba006cc08e9ff7091d16559Brianstatic GLboolean UseBitmapCache = GL_TRUE; 78c62b197b528293abb56b099503344e3cdd7d6c40Brian 79c62b197b528293abb56b099503344e3cdd7d6c40Brian 80c62b197b528293abb56b099503344e3cdd7d6c40Brian#define BITMAP_CACHE_WIDTH 512 81c62b197b528293abb56b099503344e3cdd7d6c40Brian#define BITMAP_CACHE_HEIGHT 32 82c62b197b528293abb56b099503344e3cdd7d6c40Brian 83c62b197b528293abb56b099503344e3cdd7d6c40Brianstruct bitmap_cache 84c62b197b528293abb56b099503344e3cdd7d6c40Brian{ 85c62b197b528293abb56b099503344e3cdd7d6c40Brian /** Window pos to render the cached image */ 86c62b197b528293abb56b099503344e3cdd7d6c40Brian GLint xpos, ypos; 87737e34aee598f32f8ff078ba823ed149b282ebc8Brian /** Bounds of region used in window coords */ 88737e34aee598f32f8ff078ba823ed149b282ebc8Brian GLint xmin, ymin, xmax, ymax; 89d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul 90318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul GLfloat color[4]; 91318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul 924eb72568541803fe45d04d9e230212f4f0928ec9Brian Paul /** Bitmap's Z position */ 934eb72568541803fe45d04d9e230212f4f0928ec9Brian Paul GLfloat zpos; 944eb72568541803fe45d04d9e230212f4f0928ec9Brian Paul 95287c94ea4987033f9c99a2f91c5750c9083504caKeith Whitwell struct pipe_resource *texture; 964617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer struct pipe_transfer *trans; 97d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul 98737e34aee598f32f8ff078ba823ed149b282ebc8Brian GLboolean empty; 99d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul 100737e34aee598f32f8ff078ba823ed149b282ebc8Brian /** An I8 texture image: */ 101d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul ubyte *buffer; 102c62b197b528293abb56b099503344e3cdd7d6c40Brian}; 103c62b197b528293abb56b099503344e3cdd7d6c40Brian 104c62b197b528293abb56b099503344e3cdd7d6c40Brian 1054eb72568541803fe45d04d9e230212f4f0928ec9Brian Paul/** Epsilon for Z comparisons */ 1064eb72568541803fe45d04d9e230212f4f0928ec9Brian Paul#define Z_EPSILON 1e-06 107c62b197b528293abb56b099503344e3cdd7d6c40Brian 108c62b197b528293abb56b099503344e3cdd7d6c40Brian 109c62b197b528293abb56b099503344e3cdd7d6c40Brian/** 1103ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Make fragment program for glBitmap: 1113ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Sample the texture and kill the fragment if the bit is 0. 1123ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * This program will be combined with the user's fragment program. 1133ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 1143ece9ace540447c4f0d340a6f9f27980b54f83fbBrianstatic struct st_fragment_program * 11533f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paulmake_bitmap_fragment_program(GLcontext *ctx, GLuint samplerIndex) 1163ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 11776c7ad2e7d387feefe58dc2116b613fe11a8b273Brian Paul struct st_context *st = st_context(ctx); 1183ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct st_fragment_program *stfp; 1193ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct gl_program *p; 1203ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLuint ic = 0; 1213ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1223ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p = ctx->Driver.NewProgram(ctx, GL_FRAGMENT_PROGRAM_ARB, 0); 1233ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (!p) 1243ece9ace540447c4f0d340a6f9f27980b54f83fbBrian return NULL; 1253ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1266b0be38a6cfecd2babc7175b0877bed522ca9f72Brian p->NumInstructions = 3; 1273ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1283ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions = _mesa_alloc_instructions(p->NumInstructions); 1293ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (!p->Instructions) { 1303ece9ace540447c4f0d340a6f9f27980b54f83fbBrian ctx->Driver.DeleteProgram(ctx, p); 1313ece9ace540447c4f0d340a6f9f27980b54f83fbBrian return NULL; 1323ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 1333ece9ace540447c4f0d340a6f9f27980b54f83fbBrian _mesa_init_instructions(p->Instructions, p->NumInstructions); 1343ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1353ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* TEX tmp0, fragment.texcoord[0], texture[0], 2D; */ 1363ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].Opcode = OPCODE_TEX; 1373ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].DstReg.File = PROGRAM_TEMPORARY; 1383ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].DstReg.Index = 0; 1393ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].SrcReg[0].File = PROGRAM_INPUT; 1403ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].SrcReg[0].Index = FRAG_ATTRIB_TEX0; 14133f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul p->Instructions[ic].TexSrcUnit = samplerIndex; 1423ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].TexSrcTarget = TEXTURE_2D_INDEX; 1433ece9ace540447c4f0d340a6f9f27980b54f83fbBrian ic++; 1443ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1456b0be38a6cfecd2babc7175b0877bed522ca9f72Brian /* KIL if -tmp0 < 0 # texel=0 -> keep / texel=0 -> discard */ 1463ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].Opcode = OPCODE_KIL; 1473ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].SrcReg[0].File = PROGRAM_TEMPORARY; 14893d101f0c3b2b7b6909d6f98a0d04b978b4ae29aKeith Whitwell 14976c7ad2e7d387feefe58dc2116b613fe11a8b273Brian Paul if (st->bitmap.tex_format == PIPE_FORMAT_L8_UNORM) 15093d101f0c3b2b7b6909d6f98a0d04b978b4ae29aKeith Whitwell p->Instructions[ic].SrcReg[0].Swizzle = SWIZZLE_XXXX; 15193d101f0c3b2b7b6909d6f98a0d04b978b4ae29aKeith Whitwell 1523ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic].SrcReg[0].Index = 0; 1537db7ff878d3e5a6b345228e6eaee4797bb68b360Brian Paul p->Instructions[ic].SrcReg[0].Negate = NEGATE_XYZW; 1543ece9ace540447c4f0d340a6f9f27980b54f83fbBrian ic++; 1553ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1563ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* END; */ 1573ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->Instructions[ic++].Opcode = OPCODE_END; 1583ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1593ece9ace540447c4f0d340a6f9f27980b54f83fbBrian assert(ic == p->NumInstructions); 1603ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1613ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->InputsRead = FRAG_BIT_TEX0; 1623ece9ace540447c4f0d340a6f9f27980b54f83fbBrian p->OutputsWritten = 0x0; 16333f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul p->SamplersUsed = (1 << samplerIndex); 1643ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1653ece9ace540447c4f0d340a6f9f27980b54f83fbBrian stfp = (struct st_fragment_program *) p; 1663ece9ace540447c4f0d340a6f9f27980b54f83fbBrian stfp->Base.UsesKill = GL_TRUE; 16793d101f0c3b2b7b6909d6f98a0d04b978b4ae29aKeith Whitwell 1683ece9ace540447c4f0d340a6f9f27980b54f83fbBrian return stfp; 1693ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 1703ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 1713ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 17233f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paulstatic int 17333f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paulfind_free_bit(uint bitfield) 17433f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul{ 17533f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul int i; 17633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul for (i = 0; i < 32; i++) { 17733f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul if ((bitfield & (1 << i)) == 0) { 17833f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul return i; 17933f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul } 18033f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul } 18133f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul return -1; 18233f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul} 18333f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul 18433f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul 1853ece9ace540447c4f0d340a6f9f27980b54f83fbBrian/** 1863ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Combine basic bitmap fragment program with the user-defined program. 1873ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 1883ece9ace540447c4f0d340a6f9f27980b54f83fbBrianstatic struct st_fragment_program * 1893ece9ace540447c4f0d340a6f9f27980b54f83fbBriancombined_bitmap_fragment_program(GLcontext *ctx) 1903ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 19176c7ad2e7d387feefe58dc2116b613fe11a8b273Brian Paul struct st_context *st = st_context(ctx); 19233f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul struct st_fragment_program *stfp = st->fp; 1933ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 19433f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul if (!stfp->bitmap_program) { 19533f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul /* 19633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul * Generate new program which is the user-defined program prefixed 19733f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul * with the bitmap sampler/kill instructions. 1983ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 19933f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul struct st_fragment_program *bitmap_prog; 20033f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul uint sampler; 2013ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 20233f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul sampler = find_free_bit(st->fp->Base.Base.SamplersUsed); 20333f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul bitmap_prog = make_bitmap_fragment_program(ctx, sampler); 20433f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul 20533f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul stfp->bitmap_program = (struct st_fragment_program *) 20633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul _mesa_combine_programs(ctx, 20733f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul &bitmap_prog->Base.Base, &stfp->Base.Base); 20833f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul stfp->bitmap_program->bitmap_sampler = sampler; 209ac09b0e0eb30f6691e35638f210c04ac0f867ea8Brian Paul 210ac09b0e0eb30f6691e35638f210c04ac0f867ea8Brian Paul /* done with this after combining */ 211ac09b0e0eb30f6691e35638f210c04ac0f867ea8Brian Paul st_reference_fragprog(st, &bitmap_prog, NULL); 212ac09b0e0eb30f6691e35638f210c04ac0f867ea8Brian Paul 2133ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#if 0 2143ece9ace540447c4f0d340a6f9f27980b54f83fbBrian { 21533f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul struct gl_program *p = &stfp->bitmap_program->Base.Base; 2163ece9ace540447c4f0d340a6f9f27980b54f83fbBrian printf("Combined bitmap program:\n"); 2173ece9ace540447c4f0d340a6f9f27980b54f83fbBrian _mesa_print_program(p); 2183ece9ace540447c4f0d340a6f9f27980b54f83fbBrian printf("InputsRead: 0x%x\n", p->InputsRead); 2193ece9ace540447c4f0d340a6f9f27980b54f83fbBrian printf("OutputsWritten: 0x%x\n", p->OutputsWritten); 2203ece9ace540447c4f0d340a6f9f27980b54f83fbBrian _mesa_print_parameter_list(p->Parameters); 2213ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2223ece9ace540447c4f0d340a6f9f27980b54f83fbBrian#endif 2233ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2243ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* translate to TGSI tokens */ 225e1906ae98ef4d8f153553056552c06ac4292d1f5Keith Whitwell st_translate_fragment_program(st, stfp->bitmap_program); 2263ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 2273ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 22833f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul return stfp->bitmap_program; 2293ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 2303ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2313ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 2323ece9ace540447c4f0d340a6f9f27980b54f83fbBrian/** 2337146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * Copy user-provide bitmap bits into texture buffer, expanding 2347146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * bits into texels. 235d5b6dd0001c90b896400e69067d21297d7601f32Brian Paul * "On" bits will set texels to 0x0. 2367146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * "Off" bits will not modify texels. 2377146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * Note that the image is actually going to be upside down in 2387146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * the texture. We deal with that with texcoords. 2393ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 2407146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paulstatic void 2417146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paulunpack_bitmap(struct st_context *st, 2427146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul GLint px, GLint py, GLsizei width, GLsizei height, 2437146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul const struct gl_pixelstore_attrib *unpack, 2447146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul const GLubyte *bitmap, 2457146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul ubyte *destBuffer, uint destStride) 2463ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 247d5b6dd0001c90b896400e69067d21297d7601f32Brian Paul destBuffer += py * destStride + px; 2483ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 249d5b6dd0001c90b896400e69067d21297d7601f32Brian Paul _mesa_expand_bitmap(width, height, unpack, bitmap, 250d5b6dd0001c90b896400e69067d21297d7601f32Brian Paul destBuffer, destStride, 0x0); 2517146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul} 2527146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 2537146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 2547146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul/** 2557146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * Create a texture which represents a bitmap image. 2567146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul */ 257287c94ea4987033f9c99a2f91c5750c9083504caKeith Whitwellstatic struct pipe_resource * 2587146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paulmake_bitmap_texture(GLcontext *ctx, GLsizei width, GLsizei height, 2597146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul const struct gl_pixelstore_attrib *unpack, 2607146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul const GLubyte *bitmap) 2617146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul{ 26276c7ad2e7d387feefe58dc2116b613fe11a8b273Brian Paul struct st_context *st = st_context(ctx); 26376c7ad2e7d387feefe58dc2116b613fe11a8b273Brian Paul struct pipe_context *pipe = st->pipe; 2644617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer struct pipe_transfer *transfer; 2657146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul ubyte *dest; 266287c94ea4987033f9c99a2f91c5750c9083504caKeith Whitwell struct pipe_resource *pt; 2677146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 2687146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul /* PBO source... */ 2691b448c7a5cafa68eeead2a4c45f4362a9883383bBrian Paul bitmap = _mesa_map_pbo_source(ctx, unpack, bitmap); 2707146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul if (!bitmap) { 2717146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul return NULL; 2727146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul } 2737146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 2747146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul /** 2757146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul * Create texture to hold bitmap pattern. 2767146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul */ 27776c7ad2e7d387feefe58dc2116b613fe11a8b273Brian Paul pt = st_texture_create(st, PIPE_TEXTURE_2D, st->bitmap.tex_format, 278f12201567463c7aeb9b76c32f000d577a82e7f92Brian Paul 0, width, height, 1, 279287c94ea4987033f9c99a2f91c5750c9083504caKeith Whitwell PIPE_BIND_SAMPLER_VIEW); 2807146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul if (!pt) { 2811b448c7a5cafa68eeead2a4c45f4362a9883383bBrian Paul _mesa_unmap_pbo_source(ctx, unpack); 2827146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul return NULL; 2837146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul } 2847146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 285b0427bedde80e3189524651a327235bdfddbc613José Fonseca transfer = pipe_get_transfer(st->pipe, pt, 0, 0, 0, 286e50dd26ca6d0eb0d0f97c2780020ea16e3d4a687Thomas Hellstrom PIPE_TRANSFER_WRITE, 287e50dd26ca6d0eb0d0f97c2780020ea16e3d4a687Thomas Hellstrom 0, 0, width, height); 2887146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 289287c94ea4987033f9c99a2f91c5750c9083504caKeith Whitwell dest = pipe_transfer_map(pipe, transfer); 2907146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 2914617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer /* Put image into texture transfer */ 2924617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer memset(dest, 0xff, height * transfer->stride); 29376c7ad2e7d387feefe58dc2116b613fe11a8b273Brian Paul unpack_bitmap(st, 0, 0, width, height, unpack, bitmap, 2944617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer dest, transfer->stride); 2957146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul 2961b448c7a5cafa68eeead2a4c45f4362a9883383bBrian Paul _mesa_unmap_pbo_source(ctx, unpack); 297f1626f0bfd2b14ad8ca2afaad2ea8afb539e6491Brian Paul 2984617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer /* Release transfer */ 299287c94ea4987033f9c99a2f91c5750c9083504caKeith Whitwell pipe_transfer_unmap(pipe, transfer); 300287c94ea4987033f9c99a2f91c5750c9083504caKeith Whitwell pipe->transfer_destroy(pipe, transfer); 3013ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3023ece9ace540447c4f0d340a6f9f27980b54f83fbBrian return pt; 3033ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 3043ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 305d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwellstatic GLuint 3063ece9ace540447c4f0d340a6f9f27980b54f83fbBriansetup_bitmap_vertex_data(struct st_context *st, 3073ece9ace540447c4f0d340a6f9f27980b54f83fbBrian int x, int y, int width, int height, 3083ece9ace540447c4f0d340a6f9f27980b54f83fbBrian float z, const float color[4]) 3093ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 3103ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_context *pipe = st->pipe; 3113ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const struct gl_framebuffer *fb = st->ctx->DrawBuffer; 31253174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat fb_width = (GLfloat)fb->Width; 31353174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat fb_height = (GLfloat)fb->Height; 31453174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat x0 = (GLfloat)x; 31553174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat x1 = (GLfloat)(x + width); 31653174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat y0 = (GLfloat)y; 31753174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat y1 = (GLfloat)(y + height); 31853174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat sLeft = (GLfloat)0.0, sRight = (GLfloat)1.0; 31953174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat tTop = (GLfloat)0.0, tBot = (GLfloat)1.0 - tTop; 32053174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat clip_x0 = (GLfloat)(x0 / fb_width * 2.0 - 1.0); 32153174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat clip_y0 = (GLfloat)(y0 / fb_height * 2.0 - 1.0); 32253174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat clip_x1 = (GLfloat)(x1 / fb_width * 2.0 - 1.0); 32353174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat clip_y1 = (GLfloat)(y1 / fb_height * 2.0 - 1.0); 324918199fb0f5d84121e0ac5821168cd0e886b22e9Keith Whitwell 325918199fb0f5d84121e0ac5821168cd0e886b22e9Keith Whitwell /* XXX: Need to improve buffer_write to allow NO_WAIT (as well as 326918199fb0f5d84121e0ac5821168cd0e886b22e9Keith Whitwell * no_flush) updates to buffers where we know there is no conflict 327918199fb0f5d84121e0ac5821168cd0e886b22e9Keith Whitwell * with previous data. Currently using max_slots > 1 will cause 328918199fb0f5d84121e0ac5821168cd0e886b22e9Keith Whitwell * synchronous rendering if the driver flushes its command buffers 329918199fb0f5d84121e0ac5821168cd0e886b22e9Keith Whitwell * between one bitmap and the next. Our flush hook below isn't 330918199fb0f5d84121e0ac5821168cd0e886b22e9Keith Whitwell * sufficient to catch this as the driver doesn't tell us when it 331918199fb0f5d84121e0ac5821168cd0e886b22e9Keith Whitwell * flushes its own command buffers. Until this gets fixed, pay the 332918199fb0f5d84121e0ac5821168cd0e886b22e9Keith Whitwell * price of allocating a new buffer for each bitmap cache-flush to 333918199fb0f5d84121e0ac5821168cd0e886b22e9Keith Whitwell * avoid synchronous rendering. 334918199fb0f5d84121e0ac5821168cd0e886b22e9Keith Whitwell */ 335918199fb0f5d84121e0ac5821168cd0e886b22e9Keith Whitwell const GLuint max_slots = 1; /* 4096 / sizeof(st->bitmap.vertices); */ 3363ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLuint i; 337d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell 338d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell if (st->bitmap.vbuf_slot >= max_slots) { 339287c94ea4987033f9c99a2f91c5750c9083504caKeith Whitwell pipe_resource_reference(&st->bitmap.vbuf, NULL); 340d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell st->bitmap.vbuf_slot = 0; 341d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell } 3423ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3433ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (!st->bitmap.vbuf) { 344287c94ea4987033f9c99a2f91c5750c9083504caKeith Whitwell st->bitmap.vbuf = pipe_buffer_create(pipe->screen, 345287c94ea4987033f9c99a2f91c5750c9083504caKeith Whitwell PIPE_BIND_VERTEX_BUFFER, 346d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell max_slots * sizeof(st->bitmap.vertices)); 3473ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 3483ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 349e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian /* Positions are in clip coords since we need to do clipping in case 350e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian * the bitmap quad goes beyond the window bounds. 351e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian */ 352e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[0][0][0] = clip_x0; 353e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[0][0][1] = clip_y0; 3543ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[0][2][0] = sLeft; 3553ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[0][2][1] = tTop; 3563ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 357e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[1][0][0] = clip_x1; 358e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[1][0][1] = clip_y0; 3593ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[1][2][0] = sRight; 3603ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[1][2][1] = tTop; 3613ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 362e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[2][0][0] = clip_x1; 363e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[2][0][1] = clip_y1; 3643ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[2][2][0] = sRight; 3653ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[2][2][1] = tBot; 3663ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 367e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[3][0][0] = clip_x0; 368e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.vertices[3][0][1] = clip_y1; 3693ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[3][2][0] = sLeft; 3703ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[3][2][1] = tBot; 3713ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3723ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* same for all verts: */ 3733ece9ace540447c4f0d340a6f9f27980b54f83fbBrian for (i = 0; i < 4; i++) { 3743ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][0][2] = z; 3753ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][0][3] = 1.0; 3763ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][1][0] = color[0]; 3773ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][1][1] = color[1]; 3783ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][1][2] = color[2]; 3793ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][1][3] = color[3]; 3803ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][2][2] = 0.0; /*R*/ 3813ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vertices[i][2][3] = 1.0; /*Q*/ 3823ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 3833ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3843ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* put vertex data into vbuf */ 385b0427bedde80e3189524651a327235bdfddbc613José Fonseca pipe_buffer_write_nooverlap(st->pipe, 3868410f7cde30cc1170ae266cf3a0eb7e0e37c454aJosé Fonseca st->bitmap.vbuf, 3878410f7cde30cc1170ae266cf3a0eb7e0e37c454aJosé Fonseca st->bitmap.vbuf_slot * sizeof st->bitmap.vertices, 3888410f7cde30cc1170ae266cf3a0eb7e0e37c454aJosé Fonseca sizeof st->bitmap.vertices, 3898410f7cde30cc1170ae266cf3a0eb7e0e37c454aJosé Fonseca st->bitmap.vertices); 390d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell 391d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell return st->bitmap.vbuf_slot++ * sizeof st->bitmap.vertices; 3923ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 3933ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3943ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3953ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3963ece9ace540447c4f0d340a6f9f27980b54f83fbBrian/** 3973ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * Render a glBitmap by drawing a textured quad 3983ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 3993ece9ace540447c4f0d340a6f9f27980b54f83fbBrianstatic void 4003ece9ace540447c4f0d340a6f9f27980b54f83fbBriandraw_bitmap_quad(GLcontext *ctx, GLint x, GLint y, GLfloat z, 4013ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLsizei width, GLsizei height, 402b8030c6561e019e079b5be2fe64ec804df4bfa03Michal Krol struct pipe_sampler_view *sv, 403318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul const GLfloat *color) 4043ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 40576c7ad2e7d387feefe58dc2116b613fe11a8b273Brian Paul struct st_context *st = st_context(ctx); 40676c7ad2e7d387feefe58dc2116b613fe11a8b273Brian Paul struct pipe_context *pipe = st->pipe; 40776c7ad2e7d387feefe58dc2116b613fe11a8b273Brian Paul struct cso_context *cso = st->cso_context; 408c62b197b528293abb56b099503344e3cdd7d6c40Brian struct st_fragment_program *stfp; 4093ece9ace540447c4f0d340a6f9f27980b54f83fbBrian GLuint maxSize; 410d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell GLuint offset; 4113ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 412c62b197b528293abb56b099503344e3cdd7d6c40Brian stfp = combined_bitmap_fragment_program(ctx); 413c62b197b528293abb56b099503344e3cdd7d6c40Brian 414277089b81ae498f598efdc74fafda9873864ee54Brian Paul /* As an optimization, Mesa's fragment programs will sometimes get the 415277089b81ae498f598efdc74fafda9873864ee54Brian Paul * primary color from a statevar/constant rather than a varying variable. 416277089b81ae498f598efdc74fafda9873864ee54Brian Paul * when that's the case, we need to ensure that we use the 'color' 417277089b81ae498f598efdc74fafda9873864ee54Brian Paul * parameter and not the current attribute color (which may have changed 418277089b81ae498f598efdc74fafda9873864ee54Brian Paul * through glRasterPos and state validation. 419277089b81ae498f598efdc74fafda9873864ee54Brian Paul * So, we force the proper color here. Not elegant, but it works. 420277089b81ae498f598efdc74fafda9873864ee54Brian Paul */ 421277089b81ae498f598efdc74fafda9873864ee54Brian Paul { 422277089b81ae498f598efdc74fafda9873864ee54Brian Paul GLfloat colorSave[4]; 423277089b81ae498f598efdc74fafda9873864ee54Brian Paul COPY_4V(colorSave, ctx->Current.Attrib[VERT_ATTRIB_COLOR0]); 424277089b81ae498f598efdc74fafda9873864ee54Brian Paul COPY_4V(ctx->Current.Attrib[VERT_ATTRIB_COLOR0], color); 425277089b81ae498f598efdc74fafda9873864ee54Brian Paul st_upload_constants(st, stfp->Base.Base.Parameters, PIPE_SHADER_FRAGMENT); 426277089b81ae498f598efdc74fafda9873864ee54Brian Paul COPY_4V(ctx->Current.Attrib[VERT_ATTRIB_COLOR0], colorSave); 427277089b81ae498f598efdc74fafda9873864ee54Brian Paul } 428277089b81ae498f598efdc74fafda9873864ee54Brian Paul 429277089b81ae498f598efdc74fafda9873864ee54Brian Paul 4303ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* limit checks */ 431c62b197b528293abb56b099503344e3cdd7d6c40Brian /* XXX if the bitmap is larger than the max texture size, break 4323ece9ace540447c4f0d340a6f9f27980b54f83fbBrian * it up into chunks. 4333ece9ace540447c4f0d340a6f9f27980b54f83fbBrian */ 4343ece9ace540447c4f0d340a6f9f27980b54f83fbBrian maxSize = 1 << (pipe->screen->get_param(pipe->screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS) - 1); 43553174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca assert(width <= (GLsizei)maxSize); 43653174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca assert(height <= (GLsizei)maxSize); 4373ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4383ece9ace540447c4f0d340a6f9f27980b54f83fbBrian cso_save_rasterizer(cso); 439d246274b9c48c01b61490f0a76c22aebb8e64e1eBrian Paul cso_save_samplers(cso); 440b8030c6561e019e079b5be2fe64ec804df4bfa03Michal Krol cso_save_fragment_sampler_views(cso); 441e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian cso_save_viewport(cso); 44265efe807b9067aa07b382e3c4d9cea6222c5fc6bMichel Dänzer cso_save_fragment_shader(cso); 44365efe807b9067aa07b382e3c4d9cea6222c5fc6bMichel Dänzer cso_save_vertex_shader(cso); 444ae7b7bf1edcf6c492b4dcc162bca28a0090f601eRoland Scheidegger cso_save_vertex_elements(cso); 4453ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4463ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* rasterizer state: just scissor */ 447e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian st->bitmap.rasterizer.scissor = ctx->Scissor.Enabled; 448e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian cso_set_rasterizer(cso, &st->bitmap.rasterizer); 4493ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4503ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* fragment shader state: TEX lookup program */ 45101dfa6cde157321f565bab949f23f367ed20fa0eKeith Whitwell cso_set_fragment_shader_handle(cso, stfp->driver_shader); 4523ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4533ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* vertex shader state: position + texcoord pass-through */ 45401dfa6cde157321f565bab949f23f367ed20fa0eKeith Whitwell cso_set_vertex_shader_handle(cso, st->bitmap.vs); 4553ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 45633f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul /* user samplers, plus our bitmap sampler */ 45733f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul { 45833f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul struct pipe_sampler_state *samplers[PIPE_MAX_SAMPLERS]; 45933f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul uint num = MAX2(stfp->bitmap_sampler + 1, st->state.num_samplers); 46033f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul uint i; 46133f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul for (i = 0; i < st->state.num_samplers; i++) { 46233f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul samplers[i] = &st->state.samplers[i]; 46333f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul } 46433f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul samplers[stfp->bitmap_sampler] = &st->bitmap.sampler; 465277089b81ae498f598efdc74fafda9873864ee54Brian Paul cso_set_samplers(cso, num, (const struct pipe_sampler_state **) samplers); 466277089b81ae498f598efdc74fafda9873864ee54Brian Paul } 46733f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul 46833f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul /* user textures, plus the bitmap texture */ 46933f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul { 470b8030c6561e019e079b5be2fe64ec804df4bfa03Michal Krol struct pipe_sampler_view *sampler_views[PIPE_MAX_SAMPLERS]; 47133f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul uint num = MAX2(stfp->bitmap_sampler + 1, st->state.num_textures); 472b8030c6561e019e079b5be2fe64ec804df4bfa03Michal Krol memcpy(sampler_views, st->state.sampler_views, sizeof(sampler_views)); 473b8030c6561e019e079b5be2fe64ec804df4bfa03Michal Krol sampler_views[stfp->bitmap_sampler] = sv; 474b8030c6561e019e079b5be2fe64ec804df4bfa03Michal Krol cso_set_fragment_sampler_views(cso, num, sampler_views); 47533f3938d2d6340b31d758c96bd35f858c6c8267dBrian Paul } 476e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian 477e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian /* viewport state: viewport matching window dims */ 4783ece9ace540447c4f0d340a6f9f27980b54f83fbBrian { 479e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const struct gl_framebuffer *fb = st->ctx->DrawBuffer; 480e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian const GLboolean invert = (st_fb_orientation(fb) == Y_0_TOP); 48153174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat width = (GLfloat)fb->Width; 48253174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca const GLfloat height = (GLfloat)fb->Height; 483e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian struct pipe_viewport_state vp; 4845c1a78b7a85d23ad1358b34d03a0002a19483655José Fonseca vp.scale[0] = 0.5f * width; 4855c1a78b7a85d23ad1358b34d03a0002a19483655José Fonseca vp.scale[1] = height * (invert ? -0.5f : 0.5f); 486cfdd1ca69521446b5d937d95e7d8bfb27f6d68ebBrian Paul vp.scale[2] = 0.5f; 4875c1a78b7a85d23ad1358b34d03a0002a19483655José Fonseca vp.scale[3] = 1.0f; 4885c1a78b7a85d23ad1358b34d03a0002a19483655José Fonseca vp.translate[0] = 0.5f * width; 4895c1a78b7a85d23ad1358b34d03a0002a19483655José Fonseca vp.translate[1] = 0.5f * height; 490cfdd1ca69521446b5d937d95e7d8bfb27f6d68ebBrian Paul vp.translate[2] = 0.5f; 4915c1a78b7a85d23ad1358b34d03a0002a19483655José Fonseca vp.translate[3] = 0.0f; 492e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian cso_set_viewport(cso, &vp); 4933ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 4943ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 495ae7b7bf1edcf6c492b4dcc162bca28a0090f601eRoland Scheidegger cso_set_vertex_elements(cso, 3, st->velems_util_draw); 496ae7b7bf1edcf6c492b4dcc162bca28a0090f601eRoland Scheidegger 497cfdd1ca69521446b5d937d95e7d8bfb27f6d68ebBrian Paul /* convert Z from [0,1] to [-1,-1] to match viewport Z scale/bias */ 498cfdd1ca69521446b5d937d95e7d8bfb27f6d68ebBrian Paul z = z * 2.0 - 1.0; 499cfdd1ca69521446b5d937d95e7d8bfb27f6d68ebBrian Paul 5003ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* draw textured quad */ 5014eb72568541803fe45d04d9e230212f4f0928ec9Brian Paul offset = setup_bitmap_vertex_data(st, x, y, width, height, z, color); 5023ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 503d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell util_draw_vertex_buffer(pipe, st->bitmap.vbuf, offset, 5043ece9ace540447c4f0d340a6f9f27980b54f83fbBrian PIPE_PRIM_TRIANGLE_FAN, 5053ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 4, /* verts */ 5063ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 3); /* attribs/vert */ 5073ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 5083ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 5093ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* restore state */ 5103ece9ace540447c4f0d340a6f9f27980b54f83fbBrian cso_restore_rasterizer(cso); 5113ece9ace540447c4f0d340a6f9f27980b54f83fbBrian cso_restore_samplers(cso); 512b8030c6561e019e079b5be2fe64ec804df4bfa03Michal Krol cso_restore_fragment_sampler_views(cso); 513e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian cso_restore_viewport(cso); 514fd4acd6fdaaad4871327d081f5501680ed9da2edMichel Dänzer cso_restore_fragment_shader(cso); 515fd4acd6fdaaad4871327d081f5501680ed9da2edMichel Dänzer cso_restore_vertex_shader(cso); 516ae7b7bf1edcf6c492b4dcc162bca28a0090f601eRoland Scheidegger cso_restore_vertex_elements(cso); 5173ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 5183ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 5193ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 520737e34aee598f32f8ff078ba823ed149b282ebc8Brianstatic void 521737e34aee598f32f8ff078ba823ed149b282ebc8Brianreset_cache(struct st_context *st) 522737e34aee598f32f8ff078ba823ed149b282ebc8Brian{ 523d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul struct pipe_context *pipe = st->pipe; 524d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul struct bitmap_cache *cache = st->bitmap.cache; 525737e34aee598f32f8ff078ba823ed149b282ebc8Brian 526133501bef2933395f14b2ebdfeda84279be93c60Brian Paul /*memset(cache->buffer, 0xff, sizeof(cache->buffer));*/ 527d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->empty = GL_TRUE; 528737e34aee598f32f8ff078ba823ed149b282ebc8Brian 529d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->xmin = 1000000; 530d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->xmax = -1000000; 531d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->ymin = 1000000; 532d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->ymax = -1000000; 5333ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 534439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz if (cache->trans) { 535287c94ea4987033f9c99a2f91c5750c9083504caKeith Whitwell pipe->transfer_destroy(pipe, cache->trans); 536439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz cache->trans = NULL; 537439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz } 5382212c214f1890091c102d4cb3c69ec2df2132322Brian Paul 539d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul assert(!cache->texture); 540c62b197b528293abb56b099503344e3cdd7d6c40Brian 541d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul /* allocate a new texture */ 542d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul cache->texture = st_texture_create(st, PIPE_TEXTURE_2D, 543d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul st->bitmap.tex_format, 0, 544d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul BITMAP_CACHE_WIDTH, BITMAP_CACHE_HEIGHT, 545287c94ea4987033f9c99a2f91c5750c9083504caKeith Whitwell 1, 546287c94ea4987033f9c99a2f91c5750c9083504caKeith Whitwell PIPE_BIND_SAMPLER_VIEW); 5470c728030ed76d8b79876b8606cb0486bff96750cBrian Paul} 5480c728030ed76d8b79876b8606cb0486bff96750cBrian Paul 549c62b197b528293abb56b099503344e3cdd7d6c40Brian 5500c728030ed76d8b79876b8606cb0486bff96750cBrian Paul/** Print bitmap image to stdout (debug) */ 5510c728030ed76d8b79876b8606cb0486bff96750cBrian Paulstatic void 5520c728030ed76d8b79876b8606cb0486bff96750cBrian Paulprint_cache(const struct bitmap_cache *cache) 5530c728030ed76d8b79876b8606cb0486bff96750cBrian Paul{ 5540c728030ed76d8b79876b8606cb0486bff96750cBrian Paul int i, j, k; 5550c728030ed76d8b79876b8606cb0486bff96750cBrian Paul 5560c728030ed76d8b79876b8606cb0486bff96750cBrian Paul for (i = 0; i < BITMAP_CACHE_HEIGHT; i++) { 5570c728030ed76d8b79876b8606cb0486bff96750cBrian Paul k = BITMAP_CACHE_WIDTH * (BITMAP_CACHE_HEIGHT - i - 1); 5580c728030ed76d8b79876b8606cb0486bff96750cBrian Paul for (j = 0; j < BITMAP_CACHE_WIDTH; j++) { 5590c728030ed76d8b79876b8606cb0486bff96750cBrian Paul if (cache->buffer[k]) 5600c728030ed76d8b79876b8606cb0486bff96750cBrian Paul printf("X"); 5610c728030ed76d8b79876b8606cb0486bff96750cBrian Paul else 5620c728030ed76d8b79876b8606cb0486bff96750cBrian Paul printf(" "); 5630c728030ed76d8b79876b8606cb0486bff96750cBrian Paul k++; 5640c728030ed76d8b79876b8606cb0486bff96750cBrian Paul } 5650c728030ed76d8b79876b8606cb0486bff96750cBrian Paul printf("\n"); 5660c728030ed76d8b79876b8606cb0486bff96750cBrian Paul } 567439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz} 568439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz 5690c728030ed76d8b79876b8606cb0486bff96750cBrian Paul 570439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantzstatic void 571439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantzcreate_cache_trans(struct st_context *st) 572439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz{ 573439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz struct pipe_context *pipe = st->pipe; 574439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz struct bitmap_cache *cache = st->bitmap.cache; 575439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz 576439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz if (cache->trans) 577439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz return; 578439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz 5794617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer /* Map the texture transfer. 580d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul * Subsequent glBitmap calls will write into the texture image. 581d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul */ 582b0427bedde80e3189524651a327235bdfddbc613José Fonseca cache->trans = pipe_get_transfer(st->pipe, cache->texture, 0, 0, 0, 583e50dd26ca6d0eb0d0f97c2780020ea16e3d4a687Thomas Hellstrom PIPE_TRANSFER_WRITE, 0, 0, 584e50dd26ca6d0eb0d0f97c2780020ea16e3d4a687Thomas Hellstrom BITMAP_CACHE_WIDTH, 585e50dd26ca6d0eb0d0f97c2780020ea16e3d4a687Thomas Hellstrom BITMAP_CACHE_HEIGHT); 586287c94ea4987033f9c99a2f91c5750c9083504caKeith Whitwell cache->buffer = pipe_transfer_map(pipe, cache->trans); 587d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul 588d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul /* init image to all 0xff */ 5894617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer memset(cache->buffer, 0xff, cache->trans->stride * BITMAP_CACHE_HEIGHT); 590c62b197b528293abb56b099503344e3cdd7d6c40Brian} 591c62b197b528293abb56b099503344e3cdd7d6c40Brian 592c62b197b528293abb56b099503344e3cdd7d6c40Brian 593c62b197b528293abb56b099503344e3cdd7d6c40Brian/** 594c62b197b528293abb56b099503344e3cdd7d6c40Brian * If there's anything in the bitmap cache, draw/flush it now. 595c62b197b528293abb56b099503344e3cdd7d6c40Brian */ 596c62b197b528293abb56b099503344e3cdd7d6c40Brianvoid 597c62b197b528293abb56b099503344e3cdd7d6c40Brianst_flush_bitmap_cache(struct st_context *st) 598c62b197b528293abb56b099503344e3cdd7d6c40Brian{ 599c62b197b528293abb56b099503344e3cdd7d6c40Brian if (!st->bitmap.cache->empty) { 60044a7bd0019b9af9ff01336df0aa6eb206f5dc2e9Michel Dänzer struct bitmap_cache *cache = st->bitmap.cache; 60144a7bd0019b9af9ff01336df0aa6eb206f5dc2e9Michel Dänzer 602985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul if (st->ctx->DrawBuffer) { 603985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul struct pipe_context *pipe = st->pipe; 604b8030c6561e019e079b5be2fe64ec804df4bfa03Michal Krol struct pipe_sampler_view *sv; 605985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul 606985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul assert(cache->xmin <= cache->xmax); 607d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell 608d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell/* printf("flush size %d x %d at %d, %d\n", 609985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul cache->xmax - cache->xmin, 610985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul cache->ymax - cache->ymin, 611985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul cache->xpos, cache->ypos); 612d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell*/ 613985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul 6144617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer /* The texture transfer has been mapped until now. 6154617981ec72f7985941bee4b03c534d97ff96bc6Michel Dänzer * So unmap and release the texture transfer before drawing. 6166fb40092261b891b78e504f453fddf041f9efac6Brian Paul */ 617439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz if (cache->trans) { 6180c728030ed76d8b79876b8606cb0486bff96750cBrian Paul if (0) 6190c728030ed76d8b79876b8606cb0486bff96750cBrian Paul print_cache(cache); 620287c94ea4987033f9c99a2f91c5750c9083504caKeith Whitwell pipe_transfer_unmap(pipe, cache->trans); 621439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz cache->buffer = NULL; 6222212c214f1890091c102d4cb3c69ec2df2132322Brian Paul 623287c94ea4987033f9c99a2f91c5750c9083504caKeith Whitwell pipe->transfer_destroy(pipe, cache->trans); 624439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz cache->trans = NULL; 625439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz } 6266fb40092261b891b78e504f453fddf041f9efac6Brian Paul 627ef9a619ba9c49e27ac3fd1c2925ae6b288cd4a09Brian Paul sv = st_create_texture_sampler_view(st->pipe, cache->texture); 628b8030c6561e019e079b5be2fe64ec804df4bfa03Michal Krol if (sv) { 629b8030c6561e019e079b5be2fe64ec804df4bfa03Michal Krol draw_bitmap_quad(st->ctx, 630b8030c6561e019e079b5be2fe64ec804df4bfa03Michal Krol cache->xpos, 631b8030c6561e019e079b5be2fe64ec804df4bfa03Michal Krol cache->ypos, 632b8030c6561e019e079b5be2fe64ec804df4bfa03Michal Krol cache->zpos, 633b8030c6561e019e079b5be2fe64ec804df4bfa03Michal Krol BITMAP_CACHE_WIDTH, BITMAP_CACHE_HEIGHT, 634b8030c6561e019e079b5be2fe64ec804df4bfa03Michal Krol sv, 635b8030c6561e019e079b5be2fe64ec804df4bfa03Michal Krol cache->color); 636b8030c6561e019e079b5be2fe64ec804df4bfa03Michal Krol 637b8030c6561e019e079b5be2fe64ec804df4bfa03Michal Krol pipe_sampler_view_reference(&sv, NULL); 638b8030c6561e019e079b5be2fe64ec804df4bfa03Michal Krol } 639985134211d9fbfe9b7885beeeb85fdcf2ab78f87Brian Paul } 64044a7bd0019b9af9ff01336df0aa6eb206f5dc2e9Michel Dänzer 64144a7bd0019b9af9ff01336df0aa6eb206f5dc2e9Michel Dänzer /* release/free the texture */ 642287c94ea4987033f9c99a2f91c5750c9083504caKeith Whitwell pipe_resource_reference(&cache->texture, NULL); 64344a7bd0019b9af9ff01336df0aa6eb206f5dc2e9Michel Dänzer 644737e34aee598f32f8ff078ba823ed149b282ebc8Brian reset_cache(st); 645c62b197b528293abb56b099503344e3cdd7d6c40Brian } 646c62b197b528293abb56b099503344e3cdd7d6c40Brian} 647c62b197b528293abb56b099503344e3cdd7d6c40Brian 648d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell/* Flush bitmap cache and release vertex buffer. 649d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell */ 650d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwellvoid 651d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwellst_flush_bitmap( struct st_context *st ) 652d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell{ 653d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell st_flush_bitmap_cache(st); 654d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell 655d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell /* Release vertex buffer to avoid synchronous rendering if we were 656d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell * to map it in the next frame. 657d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell */ 658287c94ea4987033f9c99a2f91c5750c9083504caKeith Whitwell pipe_resource_reference(&st->bitmap.vbuf, NULL); 659d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell st->bitmap.vbuf_slot = 0; 660d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell} 661d2c2e9316d043ab584794a3524f22776deb4c777Keith Whitwell 662c62b197b528293abb56b099503344e3cdd7d6c40Brian 663c62b197b528293abb56b099503344e3cdd7d6c40Brian/** 664c62b197b528293abb56b099503344e3cdd7d6c40Brian * Try to accumulate this glBitmap call in the bitmap cache. 665c62b197b528293abb56b099503344e3cdd7d6c40Brian * \return GL_TRUE for success, GL_FALSE if bitmap is too large, etc. 666c62b197b528293abb56b099503344e3cdd7d6c40Brian */ 667c62b197b528293abb56b099503344e3cdd7d6c40Brianstatic GLboolean 668c62b197b528293abb56b099503344e3cdd7d6c40Brianaccum_bitmap(struct st_context *st, 669c62b197b528293abb56b099503344e3cdd7d6c40Brian GLint x, GLint y, GLsizei width, GLsizei height, 670c62b197b528293abb56b099503344e3cdd7d6c40Brian const struct gl_pixelstore_attrib *unpack, 671c62b197b528293abb56b099503344e3cdd7d6c40Brian const GLubyte *bitmap ) 672c62b197b528293abb56b099503344e3cdd7d6c40Brian{ 673737e34aee598f32f8ff078ba823ed149b282ebc8Brian struct bitmap_cache *cache = st->bitmap.cache; 674218590f70723ce0683f70a0c7aab229f9bbd89a6Vinson Lee int px = -999, py = -999; 6754eb72568541803fe45d04d9e230212f4f0928ec9Brian Paul const GLfloat z = st->ctx->Current.RasterPos[2]; 676c62b197b528293abb56b099503344e3cdd7d6c40Brian 677c62b197b528293abb56b099503344e3cdd7d6c40Brian if (width > BITMAP_CACHE_WIDTH || 678c62b197b528293abb56b099503344e3cdd7d6c40Brian height > BITMAP_CACHE_HEIGHT) 679c62b197b528293abb56b099503344e3cdd7d6c40Brian return GL_FALSE; /* too big to cache */ 680c62b197b528293abb56b099503344e3cdd7d6c40Brian 681737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (!cache->empty) { 682737e34aee598f32f8ff078ba823ed149b282ebc8Brian px = x - cache->xpos; /* pos in buffer */ 683737e34aee598f32f8ff078ba823ed149b282ebc8Brian py = y - cache->ypos; 684c62b197b528293abb56b099503344e3cdd7d6c40Brian if (px < 0 || px + width > BITMAP_CACHE_WIDTH || 685318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul py < 0 || py + height > BITMAP_CACHE_HEIGHT || 6864eb72568541803fe45d04d9e230212f4f0928ec9Brian Paul !TEST_EQ_4V(st->ctx->Current.RasterColor, cache->color) || 6874eb72568541803fe45d04d9e230212f4f0928ec9Brian Paul ((fabs(z - cache->zpos) > Z_EPSILON))) { 688318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul /* This bitmap would extend beyond cache bounds, or the bitmap 689318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul * color is changing 690c62b197b528293abb56b099503344e3cdd7d6c40Brian * so flush and continue. 691c62b197b528293abb56b099503344e3cdd7d6c40Brian */ 692c62b197b528293abb56b099503344e3cdd7d6c40Brian st_flush_bitmap_cache(st); 693c62b197b528293abb56b099503344e3cdd7d6c40Brian } 694c62b197b528293abb56b099503344e3cdd7d6c40Brian } 695c62b197b528293abb56b099503344e3cdd7d6c40Brian 696737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (cache->empty) { 697c62b197b528293abb56b099503344e3cdd7d6c40Brian /* Initialize. Center bitmap vertically in the buffer. */ 698c62b197b528293abb56b099503344e3cdd7d6c40Brian px = 0; 699c62b197b528293abb56b099503344e3cdd7d6c40Brian py = (BITMAP_CACHE_HEIGHT - height) / 2; 700737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->xpos = x; 701737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->ypos = y - py; 7024eb72568541803fe45d04d9e230212f4f0928ec9Brian Paul cache->zpos = z; 703737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->empty = GL_FALSE; 704318f00ae9f9bca783d1d3aa7700109402f3e52cbBrian Paul COPY_4FV(cache->color, st->ctx->Current.RasterColor); 705c62b197b528293abb56b099503344e3cdd7d6c40Brian } 706c62b197b528293abb56b099503344e3cdd7d6c40Brian 707c62b197b528293abb56b099503344e3cdd7d6c40Brian assert(px != -999); 708218590f70723ce0683f70a0c7aab229f9bbd89a6Vinson Lee assert(py != -999); 709c62b197b528293abb56b099503344e3cdd7d6c40Brian 710737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (x < cache->xmin) 711737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->xmin = x; 712737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (y < cache->ymin) 713737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->ymin = y; 714737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (x + width > cache->xmax) 715737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->xmax = x + width; 716737e34aee598f32f8ff078ba823ed149b282ebc8Brian if (y + height > cache->ymax) 717737e34aee598f32f8ff078ba823ed149b282ebc8Brian cache->ymax = y + height; 718737e34aee598f32f8ff078ba823ed149b282ebc8Brian 719439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz /* create the transfer if needed */ 720439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz create_cache_trans(st); 721439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz 7227146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul unpack_bitmap(st, px, py, width, height, unpack, bitmap, 7237146a1a29d3897fc0bd46dd56f3b36f2351d0f88Brian Paul cache->buffer, BITMAP_CACHE_WIDTH); 724c62b197b528293abb56b099503344e3cdd7d6c40Brian 725c62b197b528293abb56b099503344e3cdd7d6c40Brian return GL_TRUE; /* accumulated */ 726c62b197b528293abb56b099503344e3cdd7d6c40Brian} 727c62b197b528293abb56b099503344e3cdd7d6c40Brian 728c62b197b528293abb56b099503344e3cdd7d6c40Brian 729c62b197b528293abb56b099503344e3cdd7d6c40Brian 730c62b197b528293abb56b099503344e3cdd7d6c40Brian/** 731c62b197b528293abb56b099503344e3cdd7d6c40Brian * Called via ctx->Driver.Bitmap() 732c62b197b528293abb56b099503344e3cdd7d6c40Brian */ 733c62b197b528293abb56b099503344e3cdd7d6c40Brianstatic void 7343ece9ace540447c4f0d340a6f9f27980b54f83fbBrianst_Bitmap(GLcontext *ctx, GLint x, GLint y, GLsizei width, GLsizei height, 7353ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const struct gl_pixelstore_attrib *unpack, const GLubyte *bitmap ) 7363ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 73776c7ad2e7d387feefe58dc2116b613fe11a8b273Brian Paul struct st_context *st = st_context(ctx); 738287c94ea4987033f9c99a2f91c5750c9083504caKeith Whitwell struct pipe_resource *pt; 7393ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 74029d9f6b0d263b6ea2f89ea955d53d2671d9a6e43Brian Paul if (width == 0 || height == 0) 74129d9f6b0d263b6ea2f89ea955d53d2671d9a6e43Brian Paul return; 74229d9f6b0d263b6ea2f89ea955d53d2671d9a6e43Brian Paul 7431ecb2e4a7a5881d5a98679b421d78fd11c729ebcBrian Paul st_validate_state(st); 7441ecb2e4a7a5881d5a98679b421d78fd11c729ebcBrian Paul 7453ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (!st->bitmap.vs) { 7463ece9ace540447c4f0d340a6f9f27980b54f83fbBrian /* create pass-through vertex shader now */ 7473ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const uint semantic_names[] = { TGSI_SEMANTIC_POSITION, 7483ece9ace540447c4f0d340a6f9f27980b54f83fbBrian TGSI_SEMANTIC_COLOR, 7493ece9ace540447c4f0d340a6f9f27980b54f83fbBrian TGSI_SEMANTIC_GENERIC }; 7503ece9ace540447c4f0d340a6f9f27980b54f83fbBrian const uint semantic_indexes[] = { 0, 0, 0 }; 7513ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vs = util_make_vertex_passthrough_shader(st->pipe, 3, 7523ece9ace540447c4f0d340a6f9f27980b54f83fbBrian semantic_names, 753fa0f48504a32642d688d4b81f62eea54c693b23fKeith Whitwell semantic_indexes); 7543ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 7553ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 756c62b197b528293abb56b099503344e3cdd7d6c40Brian if (UseBitmapCache && accum_bitmap(st, x, y, width, height, unpack, bitmap)) 757c62b197b528293abb56b099503344e3cdd7d6c40Brian return; 7583ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 7593ece9ace540447c4f0d340a6f9f27980b54f83fbBrian pt = make_bitmap_texture(ctx, width, height, unpack, bitmap); 7603ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (pt) { 761ef9a619ba9c49e27ac3fd1c2925ae6b288cd4a09Brian Paul struct pipe_sampler_view *sv = st_create_texture_sampler_view(st->pipe, pt); 762b8030c6561e019e079b5be2fe64ec804df4bfa03Michal Krol 7636f8286163c79a8187c2912a9b673a6f11f4f60c6Brian assert(pt->target == PIPE_TEXTURE_2D); 764b8030c6561e019e079b5be2fe64ec804df4bfa03Michal Krol 765b8030c6561e019e079b5be2fe64ec804df4bfa03Michal Krol if (sv) { 766b8030c6561e019e079b5be2fe64ec804df4bfa03Michal Krol draw_bitmap_quad(ctx, x, y, ctx->Current.RasterPos[2], 767b8030c6561e019e079b5be2fe64ec804df4bfa03Michal Krol width, height, sv, 768b8030c6561e019e079b5be2fe64ec804df4bfa03Michal Krol st->ctx->Current.RasterColor); 769b8030c6561e019e079b5be2fe64ec804df4bfa03Michal Krol 770b8030c6561e019e079b5be2fe64ec804df4bfa03Michal Krol pipe_sampler_view_reference(&sv, NULL); 771b8030c6561e019e079b5be2fe64ec804df4bfa03Michal Krol } 772b8030c6561e019e079b5be2fe64ec804df4bfa03Michal Krol 773d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul /* release/free the texture */ 774287c94ea4987033f9c99a2f91c5750c9083504caKeith Whitwell pipe_resource_reference(&pt, NULL); 7753ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 7763ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 7773ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 7783ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 779c62b197b528293abb56b099503344e3cdd7d6c40Brian/** Per-context init */ 780c62b197b528293abb56b099503344e3cdd7d6c40Brianvoid 781c62b197b528293abb56b099503344e3cdd7d6c40Brianst_init_bitmap_functions(struct dd_function_table *functions) 7823ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 7833ece9ace540447c4f0d340a6f9f27980b54f83fbBrian functions->Bitmap = st_Bitmap; 7843ece9ace540447c4f0d340a6f9f27980b54f83fbBrian} 7853ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 7863ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 787c62b197b528293abb56b099503344e3cdd7d6c40Brian/** Per-context init */ 788c62b197b528293abb56b099503344e3cdd7d6c40Brianvoid 789c62b197b528293abb56b099503344e3cdd7d6c40Brianst_init_bitmap(struct st_context *st) 790c62b197b528293abb56b099503344e3cdd7d6c40Brian{ 791e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian struct pipe_sampler_state *sampler = &st->bitmap.sampler; 792eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul struct pipe_context *pipe = st->pipe; 793eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul struct pipe_screen *screen = pipe->screen; 794e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian 795e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian /* init sampler state once */ 796e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian memset(sampler, 0, sizeof(*sampler)); 797e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->wrap_s = PIPE_TEX_WRAP_CLAMP; 798e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->wrap_t = PIPE_TEX_WRAP_CLAMP; 799e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->wrap_r = PIPE_TEX_WRAP_CLAMP; 800e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->min_img_filter = PIPE_TEX_FILTER_NEAREST; 801e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->min_mip_filter = PIPE_TEX_MIPFILTER_NONE; 802e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->mag_img_filter = PIPE_TEX_FILTER_NEAREST; 803e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian sampler->normalized_coords = 1; 804e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian 8056a382250a10e7022e93b6be6fe4657445d85a568Brian /* init baseline rasterizer state once */ 806e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian memset(&st->bitmap.rasterizer, 0, sizeof(st->bitmap.rasterizer)); 807124e1345c9ba4abe17bb04b8781ec0fe803eda7bBrian st->bitmap.rasterizer.gl_rasterization_rules = 1; 808e66cb602b79f52bd1f01b1c3f7af039eeff283a6Brian 809eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul /* find a usable texture format */ 810127328bfadaa5f080730fd41f404f1bc74f490d3Roland Scheidegger if (screen->is_format_supported(screen, PIPE_FORMAT_I8_UNORM, PIPE_TEXTURE_2D, 0, 811287c94ea4987033f9c99a2f91c5750c9083504caKeith Whitwell PIPE_BIND_SAMPLER_VIEW, 0)) { 81254f94a790e4488445347abcff9a636a9c440d7f9Brian Paul st->bitmap.tex_format = PIPE_FORMAT_I8_UNORM; 813eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul } 814127328bfadaa5f080730fd41f404f1bc74f490d3Roland Scheidegger else if (screen->is_format_supported(screen, PIPE_FORMAT_A8_UNORM, PIPE_TEXTURE_2D, 0, 815287c94ea4987033f9c99a2f91c5750c9083504caKeith Whitwell PIPE_BIND_SAMPLER_VIEW, 0)) { 816fe60dbc536e2fb94cf7bc5262ebd7817c16eb9e7Keith Whitwell st->bitmap.tex_format = PIPE_FORMAT_A8_UNORM; 817fe60dbc536e2fb94cf7bc5262ebd7817c16eb9e7Keith Whitwell } 818127328bfadaa5f080730fd41f404f1bc74f490d3Roland Scheidegger else if (screen->is_format_supported(screen, PIPE_FORMAT_L8_UNORM, PIPE_TEXTURE_2D, 0, 819287c94ea4987033f9c99a2f91c5750c9083504caKeith Whitwell PIPE_BIND_SAMPLER_VIEW, 0)) { 82093d101f0c3b2b7b6909d6f98a0d04b978b4ae29aKeith Whitwell st->bitmap.tex_format = PIPE_FORMAT_L8_UNORM; 82193d101f0c3b2b7b6909d6f98a0d04b978b4ae29aKeith Whitwell } 822eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul else { 823eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul /* XXX support more formats */ 824eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul assert(0); 825eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul } 826eefb9d3b51e40867ac3fee43b6496a62b1888b3cBrian Paul 827d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul /* alloc bitmap cache object */ 828f1a59a6dd7b7b0523db191d82b3af1a841c6475dBrian Paul st->bitmap.cache = ST_CALLOC_STRUCT(bitmap_cache); 829d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul 830d3b98330d800d347e3fccf80a40fa87453659c6cBrian Paul reset_cache(st); 831c62b197b528293abb56b099503344e3cdd7d6c40Brian} 832c62b197b528293abb56b099503344e3cdd7d6c40Brian 833c62b197b528293abb56b099503344e3cdd7d6c40Brian 834c62b197b528293abb56b099503344e3cdd7d6c40Brian/** Per-context tear-down */ 8353ece9ace540447c4f0d340a6f9f27980b54f83fbBrianvoid 8363ece9ace540447c4f0d340a6f9f27980b54f83fbBrianst_destroy_bitmap(struct st_context *st) 8373ece9ace540447c4f0d340a6f9f27980b54f83fbBrian{ 8383ece9ace540447c4f0d340a6f9f27980b54f83fbBrian struct pipe_context *pipe = st->pipe; 839b4219e35e2de783ca03e53c311a8a56f8b633aa1Brian Paul struct bitmap_cache *cache = st->bitmap.cache; 840b4219e35e2de783ca03e53c311a8a56f8b633aa1Brian Paul 841439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz 8423ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 8433ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (st->bitmap.vs) { 844a770d40c3d4977e2c134661b5d8facaea446b6eaBrian Paul cso_delete_vertex_shader(st->cso_context, st->bitmap.vs); 8453ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vs = NULL; 8463ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 847c62b197b528293abb56b099503344e3cdd7d6c40Brian 8483ece9ace540447c4f0d340a6f9f27980b54f83fbBrian if (st->bitmap.vbuf) { 849287c94ea4987033f9c99a2f91c5750c9083504caKeith Whitwell pipe_resource_reference(&st->bitmap.vbuf, NULL); 8503ece9ace540447c4f0d340a6f9f27980b54f83fbBrian st->bitmap.vbuf = NULL; 8513ece9ace540447c4f0d340a6f9f27980b54f83fbBrian } 8523ece9ace540447c4f0d340a6f9f27980b54f83fbBrian 853439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz if (cache) { 854439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz if (cache->trans) { 855287c94ea4987033f9c99a2f91c5750c9083504caKeith Whitwell pipe_transfer_unmap(pipe, cache->trans); 856287c94ea4987033f9c99a2f91c5750c9083504caKeith Whitwell pipe->transfer_destroy(pipe, cache->trans); 857439c42ae8b652f4fce59e5157c7e598280959684Jakob Bornecrantz } 858287c94ea4987033f9c99a2f91c5750c9083504caKeith Whitwell pipe_resource_reference(&st->bitmap.cache->texture, NULL); 85932f2fd1c5d6088692551c80352b7d6fa35b0cd09Kristian Høgsberg free(st->bitmap.cache); 860c62b197b528293abb56b099503344e3cdd7d6c40Brian st->bitmap.cache = NULL; 861c62b197b528293abb56b099503344e3cdd7d6c40Brian } 862c62b197b528293abb56b099503344e3cdd7d6c40Brian} 86314a92b26ff76550c5010ddf8bcbf5226dae5183fChia-I Wu 86414a92b26ff76550c5010ddf8bcbf5226dae5183fChia-I Wu#endif /* FEATURE_drawpix */ 865