i915_context.c revision 5b4e7cdca4be195bbce4620f26b8e7f644862b79
1/************************************************************************** 2 * 3 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas. 4 * All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * 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, sub license, 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 portions 16 * of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR 22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 * 26 **************************************************************************/ 27 28#include "i915_context.h" 29#include "imports.h" 30#include "intel_tex.h" 31#include "intel_tris.h" 32#include "tnl/t_context.h" 33#include "tnl/t_pipeline.h" 34#include "tnl/t_vertex.h" 35 36#include "swrast/swrast.h" 37#include "swrast_setup/swrast_setup.h" 38#include "tnl/tnl.h" 39#include "array_cache/acache.h" 40 41#include "utils.h" 42#include "i915_reg.h" 43 44/*************************************** 45 * Mesa's Driver Functions 46 ***************************************/ 47 48static const struct dri_extension i915_extensions[] = 49{ 50 { "GL_ARB_depth_texture", NULL }, 51 { "GL_ARB_fragment_program", NULL }, 52 { "GL_ARB_shadow", NULL }, 53 { "GL_EXT_shadow_funcs", NULL }, 54 /* ARB extn won't work if not enabled */ 55 { "GL_SGIX_depth_texture", NULL }, 56 { NULL, NULL } 57}; 58 59/* Override intel default. 60 */ 61static void i915InvalidateState( GLcontext *ctx, GLuint new_state ) 62{ 63 _swrast_InvalidateState( ctx, new_state ); 64 _swsetup_InvalidateState( ctx, new_state ); 65 _ac_InvalidateState( ctx, new_state ); 66 _tnl_InvalidateState( ctx, new_state ); 67 _tnl_invalidate_vertex_state( ctx, new_state ); 68 INTEL_CONTEXT(ctx)->NewGLState |= new_state; 69 70 /* Todo: gather state values under which tracked parameters become 71 * invalidated, add callbacks for things like 72 * ProgramLocalParameters, etc. 73 */ 74 { 75 struct i915_fragment_program *p = 76 (struct i915_fragment_program *)ctx->FragmentProgram._Current; 77 if (p && p->nr_params) 78 p->params_uptodate = 0; 79 } 80 81 if (new_state & (_NEW_FOG|_NEW_HINT|_NEW_PROGRAM)) 82 i915_update_fog(ctx); 83} 84 85 86static void i915InitDriverFunctions( struct dd_function_table *functions ) 87{ 88 intelInitDriverFunctions( functions ); 89 i915InitStateFunctions( functions ); 90 i915InitTextureFuncs( functions ); 91 i915InitFragProgFuncs( functions ); 92 functions->UpdateState = i915InvalidateState; 93} 94 95 96 97GLboolean i915CreateContext( const __GLcontextModes *mesaVis, 98 __DRIcontextPrivate *driContextPriv, 99 void *sharedContextPrivate) 100{ 101 struct dd_function_table functions; 102 i915ContextPtr i915 = (i915ContextPtr) CALLOC_STRUCT(i915_context); 103 intelContextPtr intel = &i915->intel; 104 GLcontext *ctx = &intel->ctx; 105 GLuint i; 106 107 if (!i915) return GL_FALSE; 108 109 i915InitVtbl( i915 ); 110 111 i915InitDriverFunctions( &functions ); 112 113 if (!intelInitContext( intel, mesaVis, driContextPriv, 114 sharedContextPrivate, &functions )) { 115 FREE(i915); 116 return GL_FALSE; 117 } 118 119 ctx->Const.MaxTextureUnits = I915_TEX_UNITS; 120 ctx->Const.MaxTextureImageUnits = I915_TEX_UNITS; 121 ctx->Const.MaxTextureCoordUnits = I915_TEX_UNITS; 122 123 intel->nr_heaps = 1; 124 intel->texture_heaps[0] = 125 driCreateTextureHeap( 0, intel, 126 intel->intelScreen->tex.size, 127 12, 128 I830_NR_TEX_REGIONS, 129 intel->sarea->texList, 130 (unsigned *) & intel->sarea->texAge, 131 & intel->swapped, 132 sizeof( struct i915_texture_object ), 133 (destroy_texture_object_t *)intelDestroyTexObj ); 134 135 /* FIXME: driCalculateMaxTextureLevels assumes that mipmaps are 136 * tightly packed, but they're not in Intel graphics 137 * hardware. 138 */ 139 ctx->Const.MaxTextureUnits = I915_TEX_UNITS; 140 i = driQueryOptioni( &intel->optionCache, "allow_large_textures"); 141 driCalculateMaxTextureLevels( intel->texture_heaps, 142 intel->nr_heaps, 143 &intel->ctx.Const, 144 4, 145 11, /* max 2D texture size is 2048x2048 */ 146 8, /* 3D texture */ 147 11, /* cube texture. */ 148 11, /* rect texture */ 149 12, 150 GL_FALSE, 151 i ); 152 153 /* GL_ARB_fragment_program limits - don't think Mesa actually 154 * validates programs against these, and in any case one ARB 155 * instruction can translate to more than one HW instruction, so 156 * we'll still have to check and fallback each time. 157 */ 158 159 ctx->Const.FragmentProgram.MaxNativeTemps = I915_MAX_TEMPORARY; 160 ctx->Const.FragmentProgram.MaxNativeAttribs = 11; /* 8 tex, 2 color, fog */ 161 ctx->Const.FragmentProgram.MaxNativeParameters = I915_MAX_CONSTANT; 162 ctx->Const.FragmentProgram.MaxNativeAluInstructions = I915_MAX_ALU_INSN; 163 ctx->Const.FragmentProgram.MaxNativeTexInstructions = I915_MAX_TEX_INSN; 164 ctx->Const.FragmentProgram.MaxNativeInstructions = (I915_MAX_ALU_INSN + 165 I915_MAX_TEX_INSN); 166 ctx->Const.FragmentProgram.MaxNativeTexIndirections = I915_MAX_TEX_INDIRECT; 167 ctx->Const.FragmentProgram.MaxNativeAddressRegs = 0; /* I don't think we have one */ 168 169 170 driInitExtensions( ctx, i915_extensions, GL_FALSE ); 171 172 173 _tnl_init_vertices( ctx, ctx->Const.MaxArrayLockSize + 12, 174 36 * sizeof(GLfloat) ); 175 176 intel->verts = TNL_CONTEXT(ctx)->clipspace.vertex_buf; 177 178 i915InitState( i915 ); 179 180 return GL_TRUE; 181} 182 183