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 "brw_context.h"
  34 #include "brw_aub.h"
  35 #include "brw_defines.h"
  36 #include "brw_draw.h"
  37 #include "brw_vs.h"
  38 #include "imports.h"
  39 #include "intel_tex.h"
  40 #include "intel_blit.h"
  41 #include "intel_batchbuffer.h"
  42
  43 #include "utils.h"
  44 #include "api_noop.h"
  45 #include "vtxfmt.h"
  46
  47 #include "shader/shader_api.h"
  48
  49 /***************************************
  50  * Mesa's Driver Functions
  51  ***************************************/
  52
  53 static const struct dri_extension brw_extensions[] =
  54 {
  55     { "GL_ARB_depth_texture",              NULL },
  56     { "GL_ARB_fragment_program",           NULL },
  57     { "GL_ARB_shadow",                     NULL },
  58     { "GL_EXT_shadow_funcs",               NULL },
  59     /* ARB extn won't work if not enabled */
  60     { "GL_SGIX_depth_texture",             NULL },
  61     { "GL_ARB_texture_env_crossbar",       NULL },
  62     { NULL,                                NULL }
  63 };
  64
  65 static void brwUseProgram(GLcontext *ctx, GLuint program)
  66 {
  67         struct brw_context *brw = brw_context(ctx);
  68         struct gl_shader_program *sh_prog;
  69         _mesa_use_program(ctx, program);
  70         sh_prog = ctx->Shader.CurrentProgram;
  71         if (sh_prog) {
  72             ctx->VertexProgram.Enabled = GL_TRUE;
  73             ctx->FragmentProgram.Enabled = GL_TRUE;
  74             brw->attribs.VertexProgram->Current = sh_prog->VertexProgram;
  75             brw->attribs.FragmentProgram->Current = sh_prog->FragmentProgram;
  76         }
  77 }
  78
  79 static void brwInitProgFuncs( struct dd_function_table *functions )
  80 {
  81    functions->UseProgram = brwUseProgram;
  82 }
  83 static void brwInitDriverFunctions( struct dd_function_table *functions )
  84 {
  85    intelInitDriverFunctions( functions );
  86    brwInitTextureFuncs( functions );
  87    brwInitFragProgFuncs( functions );
  88    brwInitProgFuncs( functions );
  89 }
  90
  91
  92 static void brw_init_attribs( struct brw_context *brw )
  93 {
  94    GLcontext *ctx = &brw->intel.ctx;
  95
  96    brw->attribs.Color = &ctx->Color;
  97    brw->attribs.Depth = &ctx->Depth;
  98    brw->attribs.Fog = &ctx->Fog;
  99    brw->attribs.Hint = &ctx->Hint;
 100    brw->attribs.Light = &ctx->Light;
 101    brw->attribs.Line = &ctx->Line;
 102    brw->attribs.Point = &ctx->Point;
 103    brw->attribs.Polygon = &ctx->Polygon;
 104    brw->attribs.Scissor = &ctx->Scissor;
 105    brw->attribs.Stencil = &ctx->Stencil;
 106    brw->attribs.Texture = &ctx->Texture;
 107    brw->attribs.Transform = &ctx->Transform;
 108    brw->attribs.Viewport = &ctx->Viewport;
 109    brw->attribs.VertexProgram = &ctx->VertexProgram;
 110    brw->attribs.FragmentProgram = &ctx->FragmentProgram;
 111    brw->attribs.PolygonStipple = &ctx->PolygonStipple[0];
 112 }
 113
 114
 115 GLboolean brwCreateContext( const __GLcontextModes *mesaVis,
 116                             __DRIcontextPrivate *driContextPriv,
 117                             void *sharedContextPrivate)
 118 {
 119    struct dd_function_table functions;
 120    struct brw_context *brw = (struct brw_context *) CALLOC_STRUCT(brw_context);
 121    struct intel_context *intel = &brw->intel;
 122    GLcontext *ctx = &intel->ctx;
 123
 124    if (!brw) {
 125       _mesa_printf("%s: failed to alloc context\n", __FUNCTION__);
 126       return GL_FALSE;
 127    }
 128
 129    brwInitVtbl( brw );
 130    brwInitDriverFunctions( &functions );
 131
 132    if (!intelInitContext( intel, mesaVis, driContextPriv,
 133                           sharedContextPrivate, &functions )) {
 134       _mesa_printf("%s: failed to init intel context\n", __FUNCTION__);
 135       FREE(brw);
 136       return GL_FALSE;
 137    }
 138
 139    ctx->Const.MaxTextureUnits = BRW_MAX_TEX_UNIT;
 140    ctx->Const.MaxTextureImageUnits = BRW_MAX_TEX_UNIT;
 141    ctx->Const.MaxTextureCoordUnits = BRW_MAX_TEX_UNIT;
 142
 143
 144    /* Advertise the full hardware capabilities.  The new memory
 145     * manager should cope much better with overload situations:
 146     */
 147    ctx->Const.MaxTextureLevels = 12;
 148    ctx->Const.Max3DTextureLevels = 9;
 149    ctx->Const.MaxCubeTextureLevels = 12;
 150    ctx->Const.MaxTextureRectSize = (1<<11);
 151    ctx->Const.MaxTextureUnits = BRW_MAX_TEX_UNIT;
 152
 153 /*    ctx->Const.MaxNativeVertexProgramTemps = 32; */
 154
 155
 156    driInitExtensions( ctx, brw_extensions, GL_FALSE );
 157
 158    brw_aub_init( brw );
 159
 160    brw_init_attribs( brw );
 161    brw_init_metaops( brw );
 162    brw_init_state( brw );
 163
 164    brw->state.dirty.mesa = ~0;
 165    brw->state.dirty.brw = ~0;
 166
 167    memset(&brw->wm.bind, ~0, sizeof(brw->wm.bind));
 168
 169    brw->emit_state_always = 0;
 170
 171    ctx->FragmentProgram._MaintainTexEnvProgram = 1;
 172
 173    brw_draw_init( brw );
 174
 175    brw_ProgramCacheInit( ctx );
 176
 177    brw_FrameBufferTexInit( brw );
 178
 179    {
 180       const char *filename = getenv("INTEL_REPLAY");
 181       if (filename) {
 182          brw_playback_aubfile(brw, filename);
 183          exit(0);
 184       }
 185    }
 186
 187    return GL_TRUE;
 188 }
 189