brw_context.c revision da1502494b63fcd65bc60f50e59241164481f8b3
1/* 2 Copyright (C) Intel Corp. 2006. All Rights Reserved. 3 Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to 4 develop this 3D driver. 5 6 Permission is hereby granted, free of charge, to any person obtaining 7 a copy of this software and associated documentation files (the 8 "Software"), to deal in the Software without restriction, including 9 without limitation the rights to use, copy, modify, merge, publish, 10 distribute, sublicense, and/or sell copies of the Software, and to 11 permit persons to whom the Software is furnished to do so, subject to 12 the following conditions: 13 14 The above copyright notice and this permission notice (including the 15 next paragraph) shall be included in all copies or substantial 16 portions of the Software. 17 18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 19 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 21 IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE 22 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 23 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 24 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 26 **********************************************************************/ 27 /* 28 * Authors: 29 * Keith Whitwell <keith@tungstengraphics.com> 30 */ 31 32 33#include "main/imports.h" 34#include "main/api_noop.h" 35#include "main/macros.h" 36#include "main/simple_list.h" 37#include "brw_context.h" 38#include "brw_defines.h" 39#include "brw_draw.h" 40#include "brw_state.h" 41#include "intel_span.h" 42#include "tnl/t_pipeline.h" 43 44 45/*************************************** 46 * Mesa's Driver Functions 47 ***************************************/ 48 49static void brwInitDriverFunctions( struct dd_function_table *functions ) 50{ 51 intelInitDriverFunctions( functions ); 52 53 brwInitFragProgFuncs( functions ); 54 brw_init_queryobj_functions(functions); 55 56 functions->Enable = brw_enable; 57 functions->DepthRange = brw_depth_range; 58} 59 60GLboolean brwCreateContext( int api, 61 const __GLcontextModes *mesaVis, 62 __DRIcontext *driContextPriv, 63 void *sharedContextPrivate) 64{ 65 struct dd_function_table functions; 66 struct brw_context *brw = (struct brw_context *) CALLOC_STRUCT(brw_context); 67 struct intel_context *intel = &brw->intel; 68 GLcontext *ctx = &intel->ctx; 69 70 if (!brw) { 71 printf("%s: failed to alloc context\n", __FUNCTION__); 72 return GL_FALSE; 73 } 74 75 brwInitVtbl( brw ); 76 brwInitDriverFunctions( &functions ); 77 78 if (!intelInitContext( intel, api, mesaVis, driContextPriv, 79 sharedContextPrivate, &functions )) { 80 printf("%s: failed to init intel context\n", __FUNCTION__); 81 FREE(brw); 82 return GL_FALSE; 83 } 84 85 /* Initialize swrast, tnl driver tables: */ 86 intelInitSpanFuncs(ctx); 87 88 TNL_CONTEXT(ctx)->Driver.RunPipeline = _tnl_run_pipeline; 89 90 ctx->Const.MaxDrawBuffers = BRW_MAX_DRAW_BUFFERS; 91 ctx->Const.MaxTextureImageUnits = BRW_MAX_TEX_UNIT; 92 ctx->Const.MaxTextureCoordUnits = 8; /* Mesa limit */ 93 ctx->Const.MaxTextureUnits = MIN2(ctx->Const.MaxTextureCoordUnits, 94 ctx->Const.MaxTextureImageUnits); 95 ctx->Const.MaxVertexTextureImageUnits = 0; /* no vertex shader textures */ 96 ctx->Const.MaxCombinedTextureImageUnits = 97 ctx->Const.MaxVertexTextureImageUnits + 98 ctx->Const.MaxTextureImageUnits; 99 100 /* Mesa limits textures to 4kx4k; it would be nice to fix that someday 101 */ 102 ctx->Const.MaxTextureLevels = 13; 103 ctx->Const.Max3DTextureLevels = 9; 104 ctx->Const.MaxCubeTextureLevels = 12; 105 ctx->Const.MaxTextureRectSize = (1<<12); 106 107 ctx->Const.MaxTextureMaxAnisotropy = 16.0; 108 109 /* if conformance mode is set, swrast can handle any size AA point */ 110 ctx->Const.MaxPointSizeAA = 255.0; 111 112 /* We want the GLSL compiler to emit code that uses condition codes */ 113 ctx->Shader.EmitCondCodes = GL_TRUE; 114 ctx->Shader.EmitNVTempInitialization = GL_TRUE; 115 116 ctx->Const.VertexProgram.MaxNativeInstructions = (16 * 1024); 117 ctx->Const.VertexProgram.MaxAluInstructions = 0; 118 ctx->Const.VertexProgram.MaxTexInstructions = 0; 119 ctx->Const.VertexProgram.MaxTexIndirections = 0; 120 ctx->Const.VertexProgram.MaxNativeAluInstructions = 0; 121 ctx->Const.VertexProgram.MaxNativeTexInstructions = 0; 122 ctx->Const.VertexProgram.MaxNativeTexIndirections = 0; 123 ctx->Const.VertexProgram.MaxNativeAttribs = 16; 124 ctx->Const.VertexProgram.MaxNativeTemps = 256; 125 ctx->Const.VertexProgram.MaxNativeAddressRegs = 1; 126 ctx->Const.VertexProgram.MaxNativeParameters = 1024; 127 ctx->Const.VertexProgram.MaxEnvParams = 128 MIN2(ctx->Const.VertexProgram.MaxNativeParameters, 129 ctx->Const.VertexProgram.MaxEnvParams); 130 131 ctx->Const.FragmentProgram.MaxNativeInstructions = (16 * 1024); 132 ctx->Const.FragmentProgram.MaxNativeAluInstructions = (16 * 1024); 133 ctx->Const.FragmentProgram.MaxNativeTexInstructions = (16 * 1024); 134 ctx->Const.FragmentProgram.MaxNativeTexIndirections = (16 * 1024); 135 ctx->Const.FragmentProgram.MaxNativeAttribs = 12; 136 ctx->Const.FragmentProgram.MaxNativeTemps = 256; 137 ctx->Const.FragmentProgram.MaxNativeAddressRegs = 0; 138 ctx->Const.FragmentProgram.MaxNativeParameters = 1024; 139 ctx->Const.FragmentProgram.MaxEnvParams = 140 MIN2(ctx->Const.FragmentProgram.MaxNativeParameters, 141 ctx->Const.FragmentProgram.MaxEnvParams); 142 143 if (intel->is_g4x || intel->gen >= 5) { 144 brw->CMD_VF_STATISTICS = CMD_VF_STATISTICS_GM45; 145 brw->CMD_PIPELINE_SELECT = CMD_PIPELINE_SELECT_GM45; 146 brw->has_surface_tile_offset = GL_TRUE; 147 if (intel->gen < 6) 148 brw->has_compr4 = GL_TRUE; 149 brw->has_aa_line_parameters = GL_TRUE; 150 brw->has_pln = GL_TRUE; 151 } else { 152 brw->CMD_VF_STATISTICS = CMD_VF_STATISTICS_965; 153 brw->CMD_PIPELINE_SELECT = CMD_PIPELINE_SELECT_965; 154 } 155 156 /* WM maximum threads is number of EUs times number of threads per EU. */ 157 if (intel->gen == 5) { 158 brw->urb.size = 1024; 159 brw->vs_max_threads = 72; 160 brw->wm_max_threads = 12 * 6; 161 } else if (intel->is_g4x) { 162 brw->urb.size = 384; 163 brw->vs_max_threads = 32; 164 brw->wm_max_threads = 10 * 5; 165 } else if (intel->gen < 6) { 166 brw->urb.size = 256; 167 brw->vs_max_threads = 16; 168 brw->wm_max_threads = 8 * 4; 169 brw->has_negative_rhw_bug = GL_TRUE; 170 } 171 172 if (INTEL_DEBUG & DEBUG_SINGLE_THREAD) { 173 brw->vs_max_threads = 1; 174 brw->wm_max_threads = 1; 175 } 176 177 brw_init_state( brw ); 178 179 brw->curbe.last_buf = calloc(1, 4096); 180 brw->curbe.next_buf = calloc(1, 4096); 181 182 brw->state.dirty.mesa = ~0; 183 brw->state.dirty.brw = ~0; 184 185 brw->emit_state_always = 0; 186 187 ctx->VertexProgram._MaintainTnlProgram = GL_TRUE; 188 ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE; 189 190 brw_draw_init( brw ); 191 192 /* Now that most driver functions are hooked up, initialize some of the 193 * immediate state. 194 */ 195 brw_update_cc_vp(brw); 196 197 return GL_TRUE; 198} 199 200