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 "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_vs.h"
  43 #include "intel_tex.h"
  44 #include "intel_blit.h"
  45 #include "intel_batchbuffer.h"
  46 #include "intel_pixel.h"
  47 #include "intel_span.h"
  48 #include "tnl/t_pipeline.h"
  49
  50 #include "utils.h"
  51
  52
  53 /***************************************
  54  * Mesa's Driver Functions
  55  ***************************************/
  56
  57 static void brwUseProgram(GLcontext *ctx, GLuint program)
  58 {
  59    _mesa_use_program(ctx, program);
  60 }
  61
  62 static void brwInitProgFuncs( struct dd_function_table *functions )
  63 {
  64    functions->UseProgram = brwUseProgram;
  65 }
  66 static void brwInitDriverFunctions( struct dd_function_table *functions )
  67 {
  68    intelInitDriverFunctions( functions );
  69
  70    brwInitFragProgFuncs( functions );
  71    brwInitProgFuncs( functions );
  72    brw_init_queryobj_functions(functions);
  73 }
  74
  75
  76 static void brw_init_attribs( struct brw_context *brw )
  77 {
  78    GLcontext *ctx = &brw->intel.ctx;
  79
  80    brw->attribs.Color = &ctx->Color;
  81    brw->attribs.Depth = &ctx->Depth;
  82    brw->attribs.Fog = &ctx->Fog;
  83    brw->attribs.Hint = &ctx->Hint;
  84    brw->attribs.Light = &ctx->Light;
  85    brw->attribs.Line = &ctx->Line;
  86    brw->attribs.Point = &ctx->Point;
  87    brw->attribs.Polygon = &ctx->Polygon;
  88    brw->attribs.Scissor = &ctx->Scissor;
  89    brw->attribs.Stencil = &ctx->Stencil;
  90    brw->attribs.Texture = &ctx->Texture;
  91    brw->attribs.Transform = &ctx->Transform;
  92    brw->attribs.Viewport = &ctx->Viewport;
  93    brw->attribs.VertexProgram = &ctx->VertexProgram;
  94    brw->attribs.FragmentProgram = &ctx->FragmentProgram;
  95    brw->attribs.PolygonStipple = &ctx->PolygonStipple[0];
  96 }
  97
  98
  99 GLboolean brwCreateContext( const __GLcontextModes *mesaVis,
 100                             __DRIcontextPrivate *driContextPriv,
 101                             void *sharedContextPrivate)
 102 {
 103    struct dd_function_table functions;
 104    struct brw_context *brw = (struct brw_context *) CALLOC_STRUCT(brw_context);
 105    struct intel_context *intel = &brw->intel;
 106    GLcontext *ctx = &intel->ctx;
 107
 108    if (!brw) {
 109       _mesa_printf("%s: failed to alloc context\n", __FUNCTION__);
 110       return GL_FALSE;
 111    }
 112
 113    brwInitVtbl( brw );
 114    brwInitDriverFunctions( &functions );
 115
 116    if (!intelInitContext( intel, mesaVis, driContextPriv,
 117                           sharedContextPrivate, &functions )) {
 118       _mesa_printf("%s: failed to init intel context\n", __FUNCTION__);
 119       FREE(brw);
 120       return GL_FALSE;
 121    }
 122
 123    /* Initialize swrast, tnl driver tables: */
 124    intelInitSpanFuncs(ctx);
 125
 126    TNL_CONTEXT(ctx)->Driver.RunPipeline = _tnl_run_pipeline;
 127
 128    ctx->Const.MaxTextureUnits = BRW_MAX_TEX_UNIT;
 129    ctx->Const.MaxTextureImageUnits = BRW_MAX_TEX_UNIT;
 130    ctx->Const.MaxTextureCoordUnits = BRW_MAX_TEX_UNIT;
 131    ctx->Const.MaxVertexTextureImageUnits = 0; /* no vertex shader textures */
 132
 133    /* Advertise the full hardware capabilities.  The new memory
 134     * manager should cope much better with overload situations:
 135     */
 136    ctx->Const.MaxTextureLevels = 12;
 137    ctx->Const.Max3DTextureLevels = 9;
 138    ctx->Const.MaxCubeTextureLevels = 12;
 139    ctx->Const.MaxTextureRectSize = (1<<11);
 140
 141 /*    ctx->Const.MaxNativeVertexProgramTemps = 32; */
 142
 143    brw_init_attribs( brw );
 144    brw_init_metaops( brw );
 145    brw_init_state( brw );
 146
 147    brw->state.dirty.mesa = ~0;
 148    brw->state.dirty.brw = ~0;
 149
 150    brw->emit_state_always = 0;
 151
 152    ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;
 153    ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
 154
 155    make_empty_list(&brw->query.active_head);
 156
 157    brw_draw_init( brw );
 158
 159    return GL_TRUE;
 160 }
 161