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/vtxfmt.h"
  36 #include "shader/shader_api.h"
  37
  38 #include "brw_context.h"
  39 #include "brw_defines.h"
  40 #include "brw_draw.h"
  41 #include "brw_vs.h"
  42 #include "intel_tex.h"
  43 #include "intel_blit.h"
  44 #include "intel_batchbuffer.h"
  45 #include "intel_pixel.h"
  46 #include "intel_span.h"
  47 #include "tnl/t_pipeline.h"
  48
  49 #include "utils.h"
  50
  51
  52 /***************************************
  53  * Mesa's Driver Functions
  54  ***************************************/
  55
  56 static void brwUseProgram(GLcontext *ctx, GLuint program)
  57 {
  58    _mesa_use_program(ctx, program);
  59 }
  60
  61 static void brwInitProgFuncs( struct dd_function_table *functions )
  62 {
  63    functions->UseProgram = brwUseProgram;
  64 }
  65 static void brwInitDriverFunctions( struct dd_function_table *functions )
  66 {
  67    intelInitDriverFunctions( functions );
  68
  69    brwInitFragProgFuncs( functions );
  70    brwInitProgFuncs( functions );
  71 }
  72
  73
  74 static void brw_init_attribs( struct brw_context *brw )
  75 {
  76    GLcontext *ctx = &brw->intel.ctx;
  77
  78    brw->attribs.Color = &ctx->Color;
  79    brw->attribs.Depth = &ctx->Depth;
  80    brw->attribs.Fog = &ctx->Fog;
  81    brw->attribs.Hint = &ctx->Hint;
  82    brw->attribs.Light = &ctx->Light;
  83    brw->attribs.Line = &ctx->Line;
  84    brw->attribs.Point = &ctx->Point;
  85    brw->attribs.Polygon = &ctx->Polygon;
  86    brw->attribs.Scissor = &ctx->Scissor;
  87    brw->attribs.Stencil = &ctx->Stencil;
  88    brw->attribs.Texture = &ctx->Texture;
  89    brw->attribs.Transform = &ctx->Transform;
  90    brw->attribs.Viewport = &ctx->Viewport;
  91    brw->attribs.VertexProgram = &ctx->VertexProgram;
  92    brw->attribs.FragmentProgram = &ctx->FragmentProgram;
  93    brw->attribs.PolygonStipple = &ctx->PolygonStipple[0];
  94 }
  95
  96
  97 GLboolean brwCreateContext( const __GLcontextModes *mesaVis,
  98                             __DRIcontextPrivate *driContextPriv,
  99                             void *sharedContextPrivate)
 100 {
 101    struct dd_function_table functions;
 102    struct brw_context *brw = (struct brw_context *) CALLOC_STRUCT(brw_context);
 103    struct intel_context *intel = &brw->intel;
 104    GLcontext *ctx = &intel->ctx;
 105
 106    if (!brw) {
 107       _mesa_printf("%s: failed to alloc context\n", __FUNCTION__);
 108       return GL_FALSE;
 109    }
 110
 111    brwInitVtbl( brw );
 112    brwInitDriverFunctions( &functions );
 113
 114    if (!intelInitContext( intel, mesaVis, driContextPriv,
 115                           sharedContextPrivate, &functions )) {
 116       _mesa_printf("%s: failed to init intel context\n", __FUNCTION__);
 117       FREE(brw);
 118       return GL_FALSE;
 119    }
 120
 121    /* Initialize swrast, tnl driver tables: */
 122    intelInitSpanFuncs(ctx);
 123
 124    TNL_CONTEXT(ctx)->Driver.RunPipeline = _tnl_run_pipeline;
 125
 126    ctx->Const.MaxTextureUnits = BRW_MAX_TEX_UNIT;
 127    ctx->Const.MaxTextureImageUnits = BRW_MAX_TEX_UNIT;
 128    ctx->Const.MaxTextureCoordUnits = BRW_MAX_TEX_UNIT;
 129    ctx->Const.MaxVertexTextureImageUnits = 0; /* no vertex shader textures */
 130
 131    /* Advertise the full hardware capabilities.  The new memory
 132     * manager should cope much better with overload situations:
 133     */
 134    ctx->Const.MaxTextureLevels = 12;
 135    ctx->Const.Max3DTextureLevels = 9;
 136    ctx->Const.MaxCubeTextureLevels = 12;
 137    ctx->Const.MaxTextureRectSize = (1<<11);
 138
 139 /*    ctx->Const.MaxNativeVertexProgramTemps = 32; */
 140
 141    brw_init_attribs( brw );
 142    brw_init_metaops( brw );
 143    brw_init_state( brw );
 144
 145    brw->state.dirty.mesa = ~0;
 146    brw->state.dirty.brw = ~0;
 147
 148    brw->emit_state_always = 0;
 149
 150    ctx->FragmentProgram._MaintainTexEnvProgram = 1;
 151
 152    brw_draw_init( brw );
 153
 154    brw_ProgramCacheInit( ctx );
 155
 156    return GL_TRUE;
 157 }
 158