src/mesa/drivers/dri/i965/brw_context.c

   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 "shader/shader_api.h"
  38
  39 #include "brw_context.h"
  40 #include "brw_defines.h"
  41 #include "brw_draw.h"
  42 #include "brw_state.h"
  43 #include "intel_span.h"
  44 #include "tnl/t_pipeline.h"
  45
  46
  47 /***************************************
  48  * Mesa's Driver Functions
  49  ***************************************/
  50
  51 static void brwUseProgram(GLcontext *ctx, GLuint program)
  52 {
  53    _mesa_use_program(ctx, program);
  54 }
  55
  56 static void brwInitProgFuncs( struct dd_function_table *functions )
  57 {
  58    functions->UseProgram = brwUseProgram;
  59 }
  60 static void brwInitDriverFunctions( struct dd_function_table *functions )
  61 {
  62    intelInitDriverFunctions( functions );
  63
  64    brwInitFragProgFuncs( functions );
  65    brwInitProgFuncs( functions );
  66    brw_init_queryobj_functions(functions);
  67
  68    functions->Viewport = intel_viewport;
  69 }
  70
  71 GLboolean brwCreateContext( const __GLcontextModes *mesaVis,
  72                             __DRIcontext *driContextPriv,
  73                             void *sharedContextPrivate)
  74 {
  75    struct dd_function_table functions;
  76    struct brw_context *brw = (struct brw_context *) CALLOC_STRUCT(brw_context);
  77    struct intel_context *intel = &brw->intel;
  78    GLcontext *ctx = &intel->ctx;
  79
  80    if (!brw) {
  81       printf("%s: failed to alloc context\n", __FUNCTION__);
  82       return GL_FALSE;
  83    }
  84
  85    brwInitVtbl( brw );
  86    brwInitDriverFunctions( &functions );
  87
  88    if (!intelInitContext( intel, mesaVis, driContextPriv,
  89                           sharedContextPrivate, &functions )) {
  90       printf("%s: failed to init intel context\n", __FUNCTION__);
  91       FREE(brw);
  92       return GL_FALSE;
  93    }
  94
  95    /* Initialize swrast, tnl driver tables: */
  96    intelInitSpanFuncs(ctx);
  97
  98    TNL_CONTEXT(ctx)->Driver.RunPipeline = _tnl_run_pipeline;
  99
 100    ctx->Const.MaxDrawBuffers = BRW_MAX_DRAW_BUFFERS;
 101    ctx->Const.MaxTextureImageUnits = BRW_MAX_TEX_UNIT;
 102    ctx->Const.MaxTextureCoordUnits = 8; /* Mesa limit */
 103    ctx->Const.MaxTextureUnits = MIN2(ctx->Const.MaxTextureCoordUnits,
 104                                      ctx->Const.MaxTextureImageUnits);
 105    ctx->Const.MaxVertexTextureImageUnits = 0; /* no vertex shader textures */
 106    ctx->Const.MaxCombinedTextureImageUnits =
 107       ctx->Const.MaxVertexTextureImageUnits +
 108       ctx->Const.MaxTextureImageUnits;
 109
 110    /* Mesa limits textures to 4kx4k; it would be nice to fix that someday
 111     */
 112    ctx->Const.MaxTextureLevels = 13;
 113    ctx->Const.Max3DTextureLevels = 9;
 114    ctx->Const.MaxCubeTextureLevels = 12;
 115    ctx->Const.MaxTextureRectSize = (1<<12);
 116
 117    ctx->Const.MaxTextureMaxAnisotropy = 16.0;
 118
 119    /* if conformance mode is set, swrast can handle any size AA point */
 120    ctx->Const.MaxPointSizeAA = 255.0;
 121
 122    /* We want the GLSL compiler to emit code that uses condition codes */
 123    ctx->Shader.EmitCondCodes = GL_TRUE;
 124    ctx->Shader.EmitNVTempInitialization = GL_TRUE;
 125
 126    ctx->Const.VertexProgram.MaxNativeInstructions = (16 * 1024);
 127    ctx->Const.VertexProgram.MaxAluInstructions = 0;
 128    ctx->Const.VertexProgram.MaxTexInstructions = 0;
 129    ctx->Const.VertexProgram.MaxTexIndirections = 0;
 130    ctx->Const.VertexProgram.MaxNativeAluInstructions = 0;
 131    ctx->Const.VertexProgram.MaxNativeTexInstructions = 0;
 132    ctx->Const.VertexProgram.MaxNativeTexIndirections = 0;
 133    ctx->Const.VertexProgram.MaxNativeAttribs = 16;
 134    ctx->Const.VertexProgram.MaxNativeTemps = 256;
 135    ctx->Const.VertexProgram.MaxNativeAddressRegs = 1;
 136    ctx->Const.VertexProgram.MaxNativeParameters = 1024;
 137    ctx->Const.VertexProgram.MaxEnvParams =
 138       MIN2(ctx->Const.VertexProgram.MaxNativeParameters,
 139            ctx->Const.VertexProgram.MaxEnvParams);
 140
 141    ctx->Const.FragmentProgram.MaxNativeInstructions = (16 * 1024);
 142    ctx->Const.FragmentProgram.MaxNativeAluInstructions = (16 * 1024);
 143    ctx->Const.FragmentProgram.MaxNativeTexInstructions = (16 * 1024);
 144    ctx->Const.FragmentProgram.MaxNativeTexIndirections = (16 * 1024);
 145    ctx->Const.FragmentProgram.MaxNativeAttribs = 12;
 146    ctx->Const.FragmentProgram.MaxNativeTemps = 256;
 147    ctx->Const.FragmentProgram.MaxNativeAddressRegs = 0;
 148    ctx->Const.FragmentProgram.MaxNativeParameters = 1024;
 149    ctx->Const.FragmentProgram.MaxEnvParams =
 150       MIN2(ctx->Const.FragmentProgram.MaxNativeParameters,
 151            ctx->Const.FragmentProgram.MaxEnvParams);
 152
 153    if (intel->is_ironlake || intel->is_g4x || intel->gen >= 6) {
 154       brw->CMD_VF_STATISTICS = CMD_VF_STATISTICS_GM45;
 155       brw->CMD_PIPELINE_SELECT = CMD_PIPELINE_SELECT_GM45;
 156       brw->has_surface_tile_offset = GL_TRUE;
 157       brw->has_compr4 = GL_TRUE;
 158       brw->has_aa_line_parameters = GL_TRUE;
 159       brw->has_pln = GL_TRUE;
 160   } else {
 161       brw->CMD_VF_STATISTICS = CMD_VF_STATISTICS_965;
 162       brw->CMD_PIPELINE_SELECT = CMD_PIPELINE_SELECT_965;
 163    }
 164
 165    /* WM maximum threads is number of EUs times number of threads per EU. */
 166    if (intel->is_ironlake) {
 167       brw->urb.size = 1024;
 168       brw->vs_max_threads = 72;
 169       brw->wm_max_threads = 12 * 6;
 170    } else if (intel->is_g4x) {
 171       brw->urb.size = 384;
 172       brw->vs_max_threads = 32;
 173       brw->wm_max_threads = 10 * 5;
 174    } else if (intel->gen < 6) {
 175       brw->urb.size = 256;
 176       brw->vs_max_threads = 16;
 177       brw->wm_max_threads = 8 * 4;
 178       brw->has_negative_rhw_bug = GL_TRUE;
 179    }
 180
 181    if (INTEL_DEBUG & DEBUG_SINGLE_THREAD) {
 182       brw->vs_max_threads = 1;
 183       brw->wm_max_threads = 1;
 184    }
 185
 186    brw_init_state( brw );
 187
 188    brw->state.dirty.mesa = ~0;
 189    brw->state.dirty.brw = ~0;
 190
 191    brw->emit_state_always = 0;
 192
 193    ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;
 194    ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
 195
 196    make_empty_list(&brw->query.active_head);
 197
 198    brw_draw_init( brw );
 199
 200    return GL_TRUE;
 201 }
 202