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/vtxfmt.h"
  37 #include "main/simple_list.h"
  38 #include "shader/shader_api.h"
  39
  40 #include "brw_context.h"
  41 #include "brw_defines.h"
  42 #include "brw_draw.h"
  43 #include "brw_state.h"
  44 #include "brw_vs.h"
  45 #include "intel_tex.h"
  46 #include "intel_blit.h"
  47 #include "intel_batchbuffer.h"
  48 #include "intel_pixel.h"
  49 #include "intel_span.h"
  50 #include "tnl/t_pipeline.h"
  51
  52 #include "utils.h"
  53
  54
  55 /***************************************
  56  * Mesa's Driver Functions
  57  ***************************************/
  58
  59 static void brwUseProgram(GLcontext *ctx, GLuint program)
  60 {
  61    _mesa_use_program(ctx, program);
  62 }
  63
  64 static void brwInitProgFuncs( struct dd_function_table *functions )
  65 {
  66    functions->UseProgram = brwUseProgram;
  67 }
  68 static void brwInitDriverFunctions( struct dd_function_table *functions )
  69 {
  70    intelInitDriverFunctions( functions );
  71
  72    brwInitFragProgFuncs( functions );
  73    brwInitProgFuncs( functions );
  74    brw_init_queryobj_functions(functions);
  75
  76    functions->Viewport = intel_viewport;
  77 }
  78
  79 GLboolean brwCreateContext( const __GLcontextModes *mesaVis,
  80                             __DRIcontext *driContextPriv,
  81                             void *sharedContextPrivate)
  82 {
  83    struct dd_function_table functions;
  84    struct brw_context *brw = (struct brw_context *) CALLOC_STRUCT(brw_context);
  85    struct intel_context *intel = &brw->intel;
  86    GLcontext *ctx = &intel->ctx;
  87
  88    if (!brw) {
  89       _mesa_printf("%s: failed to alloc context\n", __FUNCTION__);
  90       return GL_FALSE;
  91    }
  92
  93    brwInitVtbl( brw );
  94    brwInitDriverFunctions( &functions );
  95
  96    if (!intelInitContext( intel, mesaVis, driContextPriv,
  97                           sharedContextPrivate, &functions )) {
  98       _mesa_printf("%s: failed to init intel context\n", __FUNCTION__);
  99       FREE(brw);
 100       return GL_FALSE;
 101    }
 102
 103    /* Initialize swrast, tnl driver tables: */
 104    intelInitSpanFuncs(ctx);
 105
 106    TNL_CONTEXT(ctx)->Driver.RunPipeline = _tnl_run_pipeline;
 107
 108    ctx->Const.MaxDrawBuffers = BRW_MAX_DRAW_BUFFERS;
 109    ctx->Const.MaxTextureImageUnits = BRW_MAX_TEX_UNIT;
 110    ctx->Const.MaxTextureCoordUnits = 8; /* Mesa limit */
 111    ctx->Const.MaxTextureUnits = MIN2(ctx->Const.MaxTextureCoordUnits,
 112                                      ctx->Const.MaxTextureImageUnits);
 113    ctx->Const.MaxVertexTextureImageUnits = 0; /* no vertex shader textures */
 114    ctx->Const.MaxCombinedTextureImageUnits =
 115       ctx->Const.MaxVertexTextureImageUnits +
 116       ctx->Const.MaxTextureImageUnits;
 117
 118    /* Mesa limits textures to 4kx4k; it would be nice to fix that someday
 119     */
 120    ctx->Const.MaxTextureLevels = 13;
 121    ctx->Const.Max3DTextureLevels = 9;
 122    ctx->Const.MaxCubeTextureLevels = 12;
 123    ctx->Const.MaxTextureRectSize = (1<<12);
 124
 125    ctx->Const.MaxTextureMaxAnisotropy = 16.0;
 126
 127    /* if conformance mode is set, swrast can handle any size AA point */
 128    ctx->Const.MaxPointSizeAA = 255.0;
 129
 130    /* We want the GLSL compiler to emit code that uses condition codes */
 131    ctx->Shader.EmitCondCodes = GL_TRUE;
 132    ctx->Shader.EmitNVTempInitialization = GL_TRUE;
 133
 134    ctx->Const.VertexProgram.MaxNativeInstructions = (16 * 1024);
 135    ctx->Const.VertexProgram.MaxAluInstructions = 0;
 136    ctx->Const.VertexProgram.MaxTexInstructions = 0;
 137    ctx->Const.VertexProgram.MaxTexIndirections = 0;
 138    ctx->Const.VertexProgram.MaxNativeAluInstructions = 0;
 139    ctx->Const.VertexProgram.MaxNativeTexInstructions = 0;
 140    ctx->Const.VertexProgram.MaxNativeTexIndirections = 0;
 141    ctx->Const.VertexProgram.MaxNativeAttribs = 16;
 142    ctx->Const.VertexProgram.MaxNativeTemps = 256;
 143    ctx->Const.VertexProgram.MaxNativeAddressRegs = 1;
 144    ctx->Const.VertexProgram.MaxNativeParameters = 1024;
 145    ctx->Const.VertexProgram.MaxEnvParams =
 146       MIN2(ctx->Const.VertexProgram.MaxNativeParameters,
 147            ctx->Const.VertexProgram.MaxEnvParams);
 148
 149    ctx->Const.FragmentProgram.MaxNativeInstructions = (16 * 1024);
 150    ctx->Const.FragmentProgram.MaxNativeAluInstructions = (16 * 1024);
 151    ctx->Const.FragmentProgram.MaxNativeTexInstructions = (16 * 1024);
 152    ctx->Const.FragmentProgram.MaxNativeTexIndirections = (16 * 1024);
 153    ctx->Const.FragmentProgram.MaxNativeAttribs = 12;
 154    ctx->Const.FragmentProgram.MaxNativeTemps = 256;
 155    ctx->Const.FragmentProgram.MaxNativeAddressRegs = 0;
 156    ctx->Const.FragmentProgram.MaxNativeParameters = 1024;
 157    ctx->Const.FragmentProgram.MaxEnvParams =
 158       MIN2(ctx->Const.FragmentProgram.MaxNativeParameters,
 159            ctx->Const.FragmentProgram.MaxEnvParams);
 160
 161    if (intel->is_ironlake || intel->is_g4x) {
 162       brw->CMD_VF_STATISTICS = CMD_VF_STATISTICS_GM45;
 163       brw->CMD_PIPELINE_SELECT = CMD_PIPELINE_SELECT_GM45;
 164       brw->has_surface_tile_offset = GL_TRUE;
 165       brw->has_compr4 = GL_TRUE;
 166       brw->has_aa_line_parameters = GL_TRUE;
 167   } else {
 168       brw->CMD_VF_STATISTICS = CMD_VF_STATISTICS_965;
 169       brw->CMD_PIPELINE_SELECT = CMD_PIPELINE_SELECT_965;
 170    }
 171
 172    /* WM maximum threads is number of EUs times number of threads per EU. */
 173    if (intel->is_ironlake) {
 174       brw->urb.size = 1024;
 175       brw->vs_max_threads = 72;
 176       brw->wm_max_threads = 12 * 6;
 177    } else if (intel->is_g4x) {
 178       brw->urb.size = 384;
 179       brw->vs_max_threads = 32;
 180       brw->wm_max_threads = 10 * 5;
 181    } else {
 182       brw->urb.size = 256;
 183       brw->vs_max_threads = 16;
 184       brw->wm_max_threads = 8 * 4;
 185       brw->has_negative_rhw_bug = GL_TRUE;
 186    }
 187
 188    if (INTEL_DEBUG & DEBUG_SINGLE_THREAD) {
 189       brw->vs_max_threads = 1;
 190       brw->wm_max_threads = 1;
 191    }
 192
 193    brw_init_state( brw );
 194
 195    brw->state.dirty.mesa = ~0;
 196    brw->state.dirty.brw = ~0;
 197
 198    brw->emit_state_always = 0;
 199
 200    ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;
 201    ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
 202
 203    make_empty_list(&brw->query.active_head);
 204
 205    brw_draw_init( brw );
 206
 207    return GL_TRUE;
 208 }
 209