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_state.h"
  43 #include "brw_vs.h"
  44 #include "intel_tex.h"
  45 #include "intel_blit.h"
  46 #include "intel_batchbuffer.h"
  47 #include "intel_pixel.h"
  48 #include "intel_span.h"
  49 #include "tnl/t_pipeline.h"
  50
  51 #include "utils.h"
  52
  53
  54 /***************************************
  55  * Mesa's Driver Functions
  56  ***************************************/
  57
  58 static void brwUseProgram(GLcontext *ctx, GLuint program)
  59 {
  60    _mesa_use_program(ctx, program);
  61 }
  62
  63 static void brwInitProgFuncs( struct dd_function_table *functions )
  64 {
  65    functions->UseProgram = brwUseProgram;
  66 }
  67 static void brwInitDriverFunctions( struct dd_function_table *functions )
  68 {
  69    intelInitDriverFunctions( functions );
  70
  71    brwInitFragProgFuncs( functions );
  72    brwInitProgFuncs( functions );
  73    brw_init_queryobj_functions(functions);
  74 }
  75
  76
  77 static void brw_init_attribs( struct brw_context *brw )
  78 {
  79    GLcontext *ctx = &brw->intel.ctx;
  80
  81    brw->attribs.Color = &ctx->Color;
  82    brw->attribs.Depth = &ctx->Depth;
  83    brw->attribs.Fog = &ctx->Fog;
  84    brw->attribs.Hint = &ctx->Hint;
  85    brw->attribs.Light = &ctx->Light;
  86    brw->attribs.Line = &ctx->Line;
  87    brw->attribs.Point = &ctx->Point;
  88    brw->attribs.Polygon = &ctx->Polygon;
  89    brw->attribs.Scissor = &ctx->Scissor;
  90    brw->attribs.Stencil = &ctx->Stencil;
  91    brw->attribs.Texture = &ctx->Texture;
  92    brw->attribs.Transform = &ctx->Transform;
  93    brw->attribs.Viewport = &ctx->Viewport;
  94    brw->attribs.VertexProgram = &ctx->VertexProgram;
  95    brw->attribs.FragmentProgram = &ctx->FragmentProgram;
  96    brw->attribs.PolygonStipple = &ctx->PolygonStipple[0];
  97 }
  98
  99
 100 GLboolean brwCreateContext( const __GLcontextModes *mesaVis,
 101                             __DRIcontextPrivate *driContextPriv,
 102                             void *sharedContextPrivate)
 103 {
 104    struct dd_function_table functions;
 105    struct brw_context *brw = (struct brw_context *) CALLOC_STRUCT(brw_context);
 106    struct intel_context *intel = &brw->intel;
 107    GLcontext *ctx = &intel->ctx;
 108
 109    if (!brw) {
 110       _mesa_printf("%s: failed to alloc context\n", __FUNCTION__);
 111       return GL_FALSE;
 112    }
 113
 114    brwInitVtbl( brw );
 115    brwInitDriverFunctions( &functions );
 116
 117    if (!intelInitContext( intel, mesaVis, driContextPriv,
 118                           sharedContextPrivate, &functions )) {
 119       _mesa_printf("%s: failed to init intel context\n", __FUNCTION__);
 120       FREE(brw);
 121       return GL_FALSE;
 122    }
 123
 124    /* Initialize swrast, tnl driver tables: */
 125    intelInitSpanFuncs(ctx);
 126
 127    TNL_CONTEXT(ctx)->Driver.RunPipeline = _tnl_run_pipeline;
 128
 129    ctx->Const.MaxTextureUnits = BRW_MAX_TEX_UNIT;
 130    ctx->Const.MaxTextureImageUnits = BRW_MAX_TEX_UNIT;
 131    ctx->Const.MaxTextureCoordUnits = BRW_MAX_TEX_UNIT;
 132    ctx->Const.MaxVertexTextureImageUnits = 0; /* no vertex shader textures */
 133
 134    /* Advertise the full hardware capabilities.  The new memory
 135     * manager should cope much better with overload situations:
 136     */
 137    ctx->Const.MaxTextureLevels = 12;
 138    ctx->Const.Max3DTextureLevels = 9;
 139    ctx->Const.MaxCubeTextureLevels = 12;
 140    ctx->Const.MaxTextureRectSize = (1<<11);
 141
 142 /*    ctx->Const.MaxNativeVertexProgramTemps = 32; */
 143
 144    brw_init_attribs( brw );
 145    brw_init_metaops( brw );
 146    brw_init_state( brw );
 147
 148    brw->state.dirty.mesa = ~0;
 149    brw->state.dirty.brw = ~0;
 150
 151    brw->emit_state_always = 0;
 152
 153    ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;
 154    ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
 155
 156    make_empty_list(&brw->query.active_head);
 157
 158    brw_draw_init( brw );
 159
 160    return GL_TRUE;
 161 }
 162