Exemple #1
0
DHGLRC sw_CreateContext(struct wgl_dc_data* dc_data)
{
    struct sw_context* sw_ctx;
    struct sw_framebuffer* fb = dc_data->sw_data;
    struct dd_function_table mesa_drv_functions;
    TNLcontext *tnl;

    /* We use the mesa memory routines for this function */
    sw_ctx = CALLOC_STRUCT(sw_context);
    if(!sw_ctx)
        return NULL;
    
    /* Set mesa default functions */
    _mesa_init_driver_functions(&mesa_drv_functions);
    /* Override */
    mesa_drv_functions.GetString = sw_get_string;
    mesa_drv_functions.UpdateState = sw_update_state;
    mesa_drv_functions.GetBufferSize = NULL;
    
    /* Initialize the context */
    if(!_mesa_initialize_context(&sw_ctx->mesa,
                                 fb->gl_visual,
                                 NULL,
                                 &mesa_drv_functions,
                                 (void *) sw_ctx))
    {
        ERR("Failed to initialize the mesa context.\n");
        free(sw_ctx);
        return NULL;
    }
    
    /* Initialize the "meta driver" */
    _mesa_meta_init(&sw_ctx->mesa);
    
    /* Initialize helpers */
    if(!_swrast_CreateContext(&sw_ctx->mesa) ||
       !_vbo_CreateContext(&sw_ctx->mesa) ||
       !_tnl_CreateContext(&sw_ctx->mesa) ||
       !_swsetup_CreateContext(&sw_ctx->mesa))
    {
        ERR("Failed initializing helpers.\n");
        _mesa_free_context_data(&sw_ctx->mesa);
        free(sw_ctx);
        return NULL;
    }
    
    /* Wake up! */
    _swsetup_Wakeup(&sw_ctx->mesa);
    
    /* Use TnL defaults */
    tnl = TNL_CONTEXT(&sw_ctx->mesa);
    tnl->Driver.RunPipeline = _tnl_run_pipeline;
    
    /* To map the display into user memory */
    sw_ctx->mesa.Driver.MapRenderbuffer = sw_MapRenderbuffer;
    sw_ctx->mesa.Driver.UnmapRenderbuffer = sw_UnmapRenderbuffer;
    
    return (DHGLRC)sw_ctx;
}
Exemple #2
0
static struct st_context *
st_create_context_priv( GLcontext *ctx, struct pipe_context *pipe )
{
   uint i;
   struct st_context *st = CALLOC_STRUCT( st_context );
   
   ctx->st = st;

   st->ctx = ctx;
   st->pipe = pipe;

   /* state tracker needs the VBO module */
   _vbo_CreateContext(ctx);

#if FEATURE_feedback || FEATURE_drawpix
   st->draw = draw_create(); /* for selection/feedback */

   /* Disable draw options that might convert points/lines to tris, etc.
    * as that would foul-up feedback/selection mode.
    */
   draw_wide_line_threshold(st->draw, 1000.0f);
   draw_wide_point_threshold(st->draw, 1000.0f);
   draw_enable_line_stipple(st->draw, FALSE);
   draw_enable_point_sprites(st->draw, FALSE);
#endif

   st->dirty.mesa = ~0;
   st->dirty.st = ~0;

   st->cso_context = cso_create_context(pipe);

   st_init_atoms( st );
   st_init_bitmap(st);
   st_init_clear(st);
   st_init_draw( st );
   st_init_generate_mipmap(st);
   st_init_blit(st);

   for (i = 0; i < PIPE_MAX_SAMPLERS; i++)
      st->state.sampler_list[i] = &st->state.samplers[i];

   /* we want all vertex data to be placed in buffer objects */
   vbo_use_buffer_objects(ctx);

   /* Need these flags:
    */
   st->ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
   st->ctx->FragmentProgram._UseTexEnvProgram = GL_TRUE;

   st->ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;

   st->pixel_xfer.cache = _mesa_new_program_cache();

   /* GL limits and extensions */
   st_init_limits(st);
   st_init_extensions(st);

   return st;
}
/* Create the device specific context.
 */
static GLboolean
fbCreateContext( const __GLcontextModes *glVisual,
		 __DRIcontextPrivate *driContextPriv,
		 void *sharedContextPrivate)
{
   fbContextPtr fbmesa;
   GLcontext *ctx, *shareCtx;
   struct dd_function_table functions;

   assert(glVisual);
   assert(driContextPriv);

   /* Allocate the Fb context */
   fbmesa = (fbContextPtr) _mesa_calloc( sizeof(*fbmesa) );
   if ( !fbmesa )
      return GL_FALSE;

   /* Init default driver functions then plug in our FBdev-specific functions
    */
   _mesa_init_driver_functions(&functions);
   init_core_functions(&functions);

   /* Allocate the Mesa context */
   if (sharedContextPrivate)
      shareCtx = ((fbContextPtr) sharedContextPrivate)->glCtx;
   else
      shareCtx = NULL;

   ctx = fbmesa->glCtx = _mesa_create_context(glVisual, shareCtx, 
					      &functions, (void *) fbmesa);
   if (!fbmesa->glCtx) {
      _mesa_free(fbmesa);
      return GL_FALSE;
   }
   driContextPriv->driverPrivate = fbmesa;

   /* Create module contexts */
   _swrast_CreateContext( ctx );
   _vbo_CreateContext( ctx );
   _tnl_CreateContext( ctx );
   _swsetup_CreateContext( ctx );
   _swsetup_Wakeup( ctx );


   /* use default TCL pipeline */
   {
      TNLcontext *tnl = TNL_CONTEXT(ctx);
      tnl->Driver.RunPipeline = _tnl_run_pipeline;
   }

   _mesa_enable_sw_extensions(ctx);

   return GL_TRUE;
}
Exemple #4
0
GLFBDevContextPtr
glFBDevCreateContext( const GLFBDevVisualPtr visual, GLFBDevContextPtr share )
{
   GLFBDevContextPtr ctx;
   GLcontext *glctx;
   struct dd_function_table functions;

   ASSERT(visual);

   ctx = CALLOC_STRUCT(GLFBDevContextRec);
   if (!ctx)
      return NULL;

   /* build table of device driver functions */
   _mesa_init_driver_functions(&functions);
   functions.GetString = get_string;
   functions.UpdateState = update_state;
   functions.GetBufferSize = get_buffer_size;
   functions.Viewport = viewport;

   if (!_mesa_initialize_context(&ctx->glcontext, &visual->glvisual,
                                 share ? &share->glcontext : NULL,
                                 &functions, (void *) ctx)) {
      free(ctx);
      return NULL;
   }

   ctx->visual = visual;

   /* Create module contexts */
   glctx = (GLcontext *) &ctx->glcontext;
   _swrast_CreateContext( glctx );
   _vbo_CreateContext( glctx );
   _tnl_CreateContext( glctx );
   _swsetup_CreateContext( glctx );
   _swsetup_Wakeup( glctx );

   /* use default TCL pipeline */
   {
      TNLcontext *tnl = TNL_CONTEXT(glctx);
      tnl->Driver.RunPipeline = _tnl_run_pipeline;
   }

   _mesa_enable_sw_extensions(glctx);
   _mesa_enable_1_3_extensions(glctx);
   _mesa_enable_1_4_extensions(glctx);
   _mesa_enable_1_5_extensions(glctx);
   _mesa_enable_2_0_extensions(glctx);
   _mesa_enable_2_1_extensions(glctx);

   return ctx;
}
Exemple #5
0
ggi_mesa_context_t ggiMesaCreateContext(ggi_visual_t vis)
{
	ggi_mesa_context_t ctx;
	int err;

	GGIMESADPRINT_CORE("ggiMesaCreateContext() called\n");
	
	ctx = (ggi_mesa_context_t)malloc(sizeof(struct ggi_mesa_context));
	if (!ctx) 
		return NULL;
	
	ctx->ggi_visual = vis;
	ctx->color = 0;

	ctx->gl_ctx =
	  _mesa_create_context(&(LIBGGI_MESAEXT(vis)->mesa_visual.gl_visual),
			       NULL, (void *) ctx, GL_FALSE);
	if (!ctx->gl_ctx)
		goto free_context;
	
        _mesa_enable_sw_extensions(ctx->gl_ctx);
	
	_swrast_CreateContext(ctx->gl_ctx);
	_vbo_CreateContext(ctx->gl_ctx);
	_tnl_CreateContext(ctx->gl_ctx);
	_swsetup_CreateContext(ctx->gl_ctx);
	
	gl_ggiSetupPointers(ctx->gl_ctx);

	/* Make sure that an appropriate sublib has been loaded */
	if (!LIBGGI_MESAEXT(ctx->ggi_visual)->setup_driver){
		GGIMESADPRINT_CORE("setup_driver==NULL!\n");
		GGIMESADPRINT_CORE("Please check your config files!\n");
		goto free_context;
	}

	/* Set up the sublib driver */
	err = LIBGGI_MESAEXT(ctx->ggi_visual)->setup_driver(ctx);
	if (err){
		GGIMESADPRINT_CORE("setup_driver failed (err = %d)", err);
		goto free_gl_context;
	}

	return ctx;
	
free_gl_context:
	_mesa_destroy_context(ctx->gl_ctx);
free_context:
	free(ctx);
	
	return NULL;
}
Exemple #6
0
static GLboolean
CreateContext(void)
{
   struct dd_function_table ddFuncs;
   GLvisual *vis;
   GLframebuffer *buf;
   GLcontext *ctx;
   CompilerContext *cc;

   vis = _mesa_create_visual(GL_FALSE, GL_FALSE, /* RGB */
                             8, 8, 8, 8,  /* color */
                             0, 0,  /* z, stencil */
                             0, 0, 0, 0, 1);  /* accum */
   buf = _mesa_create_framebuffer(vis);

   cc = calloc(1, sizeof(*cc));
   if (!vis || !buf || !cc) {
      if (vis)
         _mesa_destroy_visual(vis);
      if (buf)
         _mesa_destroy_framebuffer(buf);
      return GL_FALSE;
   }

   _mesa_init_driver_functions(&ddFuncs);
   ddFuncs.GetString = NULL;/*get_string;*/
   ddFuncs.UpdateState = UpdateState;
   ddFuncs.GetBufferSize = NULL;

   ctx = &cc->MesaContext;
   _mesa_initialize_context(ctx, vis, NULL, &ddFuncs, cc);
   _mesa_enable_sw_extensions(ctx);

   if (!_swrast_CreateContext( ctx ) ||
       !_vbo_CreateContext( ctx ) ||
       !_tnl_CreateContext( ctx ) ||
       !_swsetup_CreateContext( ctx )) {
      _mesa_destroy_visual(vis);
      _mesa_free_context_data(ctx);
      free(cc);
      return GL_FALSE;
   }
   TNL_CONTEXT(ctx)->Driver.RunPipeline = _tnl_run_pipeline;
   _swsetup_Wakeup( ctx );

   /* Override the context's default pragma settings */
   ctx->Shader.DefaultPragmas = Options.Pragmas;

   _mesa_make_current(ctx, buf, buf);

   return GL_TRUE;
}
Exemple #7
0
GLboolean
nouveau_context_init(struct gl_context *ctx, gl_api api,
		     struct nouveau_screen *screen,
		     const struct gl_config *visual, struct gl_context *share_ctx)
{
	struct nouveau_context *nctx = to_nouveau_context(ctx);
	struct dd_function_table functions;
	int ret;

	nctx->screen = screen;
	nctx->fallback = HWTNL;

	/* Initialize the function pointers. */
	_mesa_init_driver_functions(&functions);
	nouveau_driver_functions_init(&functions);
	nouveau_bufferobj_functions_init(&functions);
	nouveau_texture_functions_init(&functions);
	nouveau_fbo_functions_init(&functions);

	/* Initialize the mesa context. */
	if (!_mesa_initialize_context(ctx, api, visual, share_ctx, &functions))
		return GL_FALSE;

	nouveau_state_init(ctx);
	nouveau_scratch_init(ctx);
	_mesa_meta_init(ctx);
	_swrast_CreateContext(ctx);
	_vbo_CreateContext(ctx);
	_tnl_CreateContext(ctx);
	nouveau_span_functions_init(ctx);
	_mesa_allow_light_in_model(ctx, GL_FALSE);

	/* Allocate a hardware channel. */
	ret = nouveau_object_new(&context_dev(ctx)->object, 0xbeef0000,
				 NOUVEAU_FIFO_CHANNEL_CLASS,
				 &(struct nv04_fifo){
					.vram = 0xbeef0201,
					.gart = 0xbeef0202
				 }, sizeof(struct nv04_fifo), &nctx->hw.chan);
/* Create the device specific context.
 */
GLboolean r128CreateContext( const __GLcontextModes *glVisual,
			     __DRIcontextPrivate *driContextPriv,
                             void *sharedContextPrivate )
{
   GLcontext *ctx, *shareCtx;
   __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv;
   struct dd_function_table functions;
   r128ContextPtr rmesa;
   r128ScreenPtr r128scrn;
   int i;

   /* Allocate the r128 context */
   rmesa = (r128ContextPtr) CALLOC( sizeof(*rmesa) );
   if ( !rmesa )
      return GL_FALSE;

   /* Init default driver functions then plug in our Radeon-specific functions
    * (the texture functions are especially important)
    */
   _mesa_init_driver_functions( &functions );
   r128InitDriverFuncs( &functions );
   r128InitIoctlFuncs( &functions );
   r128InitTextureFuncs( &functions );

   /* Allocate the Mesa context */
   if (sharedContextPrivate)
      shareCtx = ((r128ContextPtr) sharedContextPrivate)->glCtx;
   else 
      shareCtx = NULL;
   rmesa->glCtx = _mesa_create_context(glVisual, shareCtx,
                                       &functions, (void *) rmesa);
   if (!rmesa->glCtx) {
      FREE(rmesa);
      return GL_FALSE;
   }
   driContextPriv->driverPrivate = rmesa;
   ctx = rmesa->glCtx;

   rmesa->driContext = driContextPriv;
   rmesa->driScreen = sPriv;
   rmesa->driDrawable = NULL;
   rmesa->hHWContext = driContextPriv->hHWContext;
   rmesa->driHwLock = &sPriv->pSAREA->lock;
   rmesa->driFd = sPriv->fd;

   r128scrn = rmesa->r128Screen = (r128ScreenPtr)(sPriv->private);

   /* Parse configuration files */
   driParseConfigFiles (&rmesa->optionCache, &r128scrn->optionCache,
                        r128scrn->driScreen->myNum, "r128");

   rmesa->sarea = (drm_r128_sarea_t *)((char *)sPriv->pSAREA +
				     r128scrn->sarea_priv_offset);

   rmesa->CurrentTexObj[0] = NULL;
   rmesa->CurrentTexObj[1] = NULL;

   (void) memset( rmesa->texture_heaps, 0, sizeof( rmesa->texture_heaps ) );
   make_empty_list( & rmesa->swapped );

   rmesa->nr_heaps = r128scrn->numTexHeaps;
   for ( i = 0 ; i < rmesa->nr_heaps ; i++ ) {
      rmesa->texture_heaps[i] = driCreateTextureHeap( i, rmesa,
	    r128scrn->texSize[i],
	    12,
	    R128_NR_TEX_REGIONS,
	    (drmTextureRegionPtr)rmesa->sarea->tex_list[i],
	    &rmesa->sarea->tex_age[i],
	    &rmesa->swapped,
	    sizeof( r128TexObj ),
	    (destroy_texture_object_t *) r128DestroyTexObj );

      driSetTextureSwapCounterLocation( rmesa->texture_heaps[i],
					& rmesa->c_textureSwaps );
   }
   rmesa->texture_depth = driQueryOptioni (&rmesa->optionCache,
					   "texture_depth");
   if (rmesa->texture_depth == DRI_CONF_TEXTURE_DEPTH_FB)
      rmesa->texture_depth = ( r128scrn->cpp == 4 ) ?
	 DRI_CONF_TEXTURE_DEPTH_32 : DRI_CONF_TEXTURE_DEPTH_16;


   rmesa->RenderIndex = -1;		/* Impossible value */
   rmesa->vert_buf = NULL;
   rmesa->num_verts = 0;
   RENDERINPUTS_ONES( rmesa->tnl_state_bitset );

   /* Set the maximum texture size small enough that we can guarentee that
    * all texture units can bind a maximal texture and have them both in
    * texturable memory at once.
    */

   ctx->Const.MaxTextureUnits = 2;
   ctx->Const.MaxTextureImageUnits = 2;
   ctx->Const.MaxTextureCoordUnits = 2;

   driCalculateMaxTextureLevels( rmesa->texture_heaps,
				 rmesa->nr_heaps,
				 & ctx->Const,
				 4,
				 10, /* max 2D texture size is 1024x1024 */
				 0,  /* 3D textures unsupported. */
				 0,  /* cube textures unsupported. */
				 0,  /* texture rectangles unsupported. */
				 11,
				 GL_FALSE,
				 0 );

   /* No wide points.
    */
   ctx->Const.MinPointSize = 1.0;
   ctx->Const.MinPointSizeAA = 1.0;
   ctx->Const.MaxPointSize = 1.0;
   ctx->Const.MaxPointSizeAA = 1.0;

   /* No wide lines.
    */
   ctx->Const.MinLineWidth = 1.0;
   ctx->Const.MinLineWidthAA = 1.0;
   ctx->Const.MaxLineWidth = 1.0;
   ctx->Const.MaxLineWidthAA = 1.0;
   ctx->Const.LineWidthGranularity = 1.0;

   ctx->Const.MaxDrawBuffers = 1;

#if ENABLE_PERF_BOXES
   rmesa->boxes = driQueryOptionb(&rmesa->optionCache, "performance_boxes");
#endif

   /* Initialize the software rasterizer and helper modules.
    */
   _swrast_CreateContext( ctx );
   _vbo_CreateContext( ctx );
   _tnl_CreateContext( ctx );
   _swsetup_CreateContext( ctx );

   /* Install the customized pipeline:
    */
/*     _tnl_destroy_pipeline( ctx ); */
/*     _tnl_install_pipeline( ctx, r128_pipeline ); */

   /* Configure swrast and T&L to match hardware characteristics:
    */
   _swrast_allow_pixel_fog( ctx, GL_FALSE );
   _swrast_allow_vertex_fog( ctx, GL_TRUE );
   _tnl_allow_pixel_fog( ctx, GL_FALSE );
   _tnl_allow_vertex_fog( ctx, GL_TRUE );

   driInitExtensions( ctx, card_extensions, GL_TRUE );
   if (sPriv->drm_version.minor >= 4)
      _mesa_enable_extension( ctx, "GL_MESA_ycbcr_texture" );

   r128InitTriFuncs( ctx );
   r128DDInitStateFuncs( ctx );
   r128DDInitSpanFuncs( ctx );
   r128DDInitState( rmesa );

   driContextPriv->driverPrivate = (void *)rmesa;

#if DO_DEBUG
   R128_DEBUG = driParseDebugString( getenv( "R128_DEBUG" ),
				     debug_control );
#endif

   if (driQueryOptionb(&rmesa->optionCache, "no_rast")) {
      fprintf(stderr, "disabling 3D acceleration\n");
      FALLBACK(rmesa, R128_FALLBACK_DISABLE, 1);
   }

   return GL_TRUE;
}
Exemple #9
0
bool
intelInitContext(struct intel_context *intel,
		 int api,
                 const struct gl_config * mesaVis,
                 __DRIcontext * driContextPriv,
                 void *sharedContextPrivate,
                 struct dd_function_table *functions)
{
   struct gl_context *ctx = &intel->ctx;
   struct gl_context *shareCtx = (struct gl_context *) sharedContextPrivate;
   __DRIscreen *sPriv = driContextPriv->driScreenPriv;
   struct intel_screen *intelScreen = sPriv->driverPrivate;
   int bo_reuse_mode;
   struct gl_config visual;

   /* we can't do anything without a connection to the device */
   if (intelScreen->bufmgr == NULL)
      return false;

   /* Can't rely on invalidate events, fall back to glViewport hack */
   if (!driContextPriv->driScreenPriv->dri2.useInvalidate) {
      intel->saved_viewport = functions->Viewport;
      functions->Viewport = intel_viewport;
   }

   if (mesaVis == NULL) {
      memset(&visual, 0, sizeof visual);
      mesaVis = &visual;
   }

   if (!_mesa_initialize_context(&intel->ctx, api, mesaVis, shareCtx,
                                 functions)) {
      printf("%s: failed to init mesa context\n", __FUNCTION__);
      return false;
   }

   driContextPriv->driverPrivate = intel;
   intel->intelScreen = intelScreen;
   intel->driContext = driContextPriv;
   intel->driFd = sPriv->fd;

   intel->gen = intelScreen->gen;

   const int devID = intelScreen->deviceID;
   if (IS_SNB_GT1(devID) || IS_IVB_GT1(devID) || IS_HSW_GT1(devID))
      intel->gt = 1;
   else if (IS_SNB_GT2(devID) || IS_IVB_GT2(devID) || IS_HSW_GT2(devID))
      intel->gt = 2;
   else
      intel->gt = 0;

   if (IS_HASWELL(devID)) {
      intel->is_haswell = true;
   } else if (IS_G4X(devID)) {
      intel->is_g4x = true;
   } else if (IS_945(devID)) {
      intel->is_945 = true;
   }

   if (intel->gen >= 5) {
      intel->needs_ff_sync = true;
   }

   intel->has_separate_stencil = intel->intelScreen->hw_has_separate_stencil;
   intel->must_use_separate_stencil = intel->intelScreen->hw_must_use_separate_stencil;
   intel->has_hiz = intel->gen >= 6 && !intel->is_haswell;
   intel->has_llc = intel->intelScreen->hw_has_llc;
   intel->has_swizzling = intel->intelScreen->hw_has_swizzling;

   memset(&ctx->TextureFormatSupported,
	  0, sizeof(ctx->TextureFormatSupported));

   driParseConfigFiles(&intel->optionCache, &intelScreen->optionCache,
                       sPriv->myNum, (intel->gen >= 4) ? "i965" : "i915");
   if (intel->gen < 4)
      intel->maxBatchSize = 4096;
   else
      intel->maxBatchSize = sizeof(intel->batch.map);

   intel->bufmgr = intelScreen->bufmgr;

   bo_reuse_mode = driQueryOptioni(&intel->optionCache, "bo_reuse");
   switch (bo_reuse_mode) {
   case DRI_CONF_BO_REUSE_DISABLED:
      break;
   case DRI_CONF_BO_REUSE_ALL:
      intel_bufmgr_gem_enable_reuse(intel->bufmgr);
      break;
   }

   ctx->Const.MinLineWidth = 1.0;
   ctx->Const.MinLineWidthAA = 1.0;
   ctx->Const.MaxLineWidth = 5.0;
   ctx->Const.MaxLineWidthAA = 5.0;
   ctx->Const.LineWidthGranularity = 0.5;

   ctx->Const.MinPointSize = 1.0;
   ctx->Const.MinPointSizeAA = 1.0;
   ctx->Const.MaxPointSize = 255.0;
   ctx->Const.MaxPointSizeAA = 3.0;
   ctx->Const.PointSizeGranularity = 1.0;

   ctx->Const.MaxSamples = 1.0;

   if (intel->gen >= 6)
      ctx->Const.MaxClipPlanes = 8;

   ctx->Const.StripTextureBorder = GL_TRUE;

   /* reinitialize the context point state.
    * It depend on constants in __struct gl_contextRec::Const
    */
   _mesa_init_point(ctx);

   if (intel->gen >= 4) {
      ctx->Const.MaxRenderbufferSize = 8192;
   } else {
      ctx->Const.MaxRenderbufferSize = 2048;
   }

   /* Initialize the software rasterizer and helper modules.
    *
    * As of GL 3.1 core, the gen4+ driver doesn't need the swrast context for
    * software fallbacks (which we have to support on legacy GL to do weird
    * glDrawPixels(), glBitmap(), and other functions).
    */
   if (intel->gen <= 3 || api != API_OPENGL_CORE) {
      _swrast_CreateContext(ctx);
   }

   _vbo_CreateContext(ctx);
   if (ctx->swrast_context) {
      _tnl_CreateContext(ctx);
      _swsetup_CreateContext(ctx);

      /* Configure swrast to match hardware characteristics: */
      _swrast_allow_pixel_fog(ctx, false);
      _swrast_allow_vertex_fog(ctx, true);
   }

   _mesa_meta_init(ctx);

   intel->hw_stencil = mesaVis->stencilBits && mesaVis->depthBits == 24;
   intel->hw_stipple = 1;

   /* XXX FBO: this doesn't seem to be used anywhere */
   switch (mesaVis->depthBits) {
   case 0:                     /* what to do in this case? */
   case 16:
      intel->polygon_offset_scale = 1.0;
      break;
   case 24:
      intel->polygon_offset_scale = 2.0;     /* req'd to pass glean */
      break;
   default:
      assert(0);
      break;
   }

   if (intel->gen >= 4)
      intel->polygon_offset_scale /= 0xffff;

   intel->RenderIndex = ~0;

   intelInitExtensions(ctx);

   INTEL_DEBUG = driParseDebugString(getenv("INTEL_DEBUG"), debug_control);
   if (INTEL_DEBUG & DEBUG_BUFMGR)
      dri_bufmgr_set_debug(intel->bufmgr, true);
   if ((INTEL_DEBUG & DEBUG_SHADER_TIME) && intel->gen < 7) {
      fprintf(stderr,
              "shader_time debugging requires gen7 (Ivybridge) or better.\n");
      INTEL_DEBUG &= ~DEBUG_SHADER_TIME;
   }

   if (INTEL_DEBUG & DEBUG_AUB)
      drm_intel_bufmgr_gem_set_aub_dump(intel->bufmgr, true);

   intel_batchbuffer_init(intel);

   intel_fbo_init(intel);

   intel->use_texture_tiling = driQueryOptionb(&intel->optionCache,
					       "texture_tiling");
   intel->use_early_z = driQueryOptionb(&intel->optionCache, "early_z");

   if (!driQueryOptionb(&intel->optionCache, "hiz")) {
       intel->has_hiz = false;
       /* On gen6, you can only do separate stencil with HIZ. */
       if (intel->gen == 6)
	  intel->has_separate_stencil = false;
   }

   intel->prim.primitive = ~0;

   /* Force all software fallbacks */
#ifdef I915
   if (driQueryOptionb(&intel->optionCache, "no_rast")) {
      fprintf(stderr, "disabling 3D rasterization\n");
      intel->no_rast = 1;
   }
#endif

   if (driQueryOptionb(&intel->optionCache, "always_flush_batch")) {
      fprintf(stderr, "flushing batchbuffer before/after each draw call\n");
      intel->always_flush_batch = 1;
   }

   if (driQueryOptionb(&intel->optionCache, "always_flush_cache")) {
      fprintf(stderr, "flushing GPU caches before/after each draw call\n");
      intel->always_flush_cache = 1;
   }

   return true;
}
Exemple #10
0
/**
 * New in Mesa 3.5
 *
 * Create context and specify size of ancillary buffers.
 */
GLAPI OSMesaContext GLAPIENTRY
OSMesaCreateContextExt( GLenum format, GLint depthBits, GLint stencilBits,
                        GLint accumBits, OSMesaContext sharelist )
{
   OSMesaContext osmesa;
   struct dd_function_table functions;
   GLint rind, gind, bind, aind;
   GLint redBits = 0, greenBits = 0, blueBits = 0, alphaBits =0;

   rind = gind = bind = aind = 0;
   if (format==OSMESA_RGBA) {
      redBits = CHAN_BITS;
      greenBits = CHAN_BITS;
      blueBits = CHAN_BITS;
      alphaBits = CHAN_BITS;
      rind = 0;
      gind = 1;
      bind = 2;
      aind = 3;
   }
   else if (format==OSMESA_BGRA) {
      redBits = CHAN_BITS;
      greenBits = CHAN_BITS;
      blueBits = CHAN_BITS;
      alphaBits = CHAN_BITS;
      bind = 0;
      gind = 1;
      rind = 2;
      aind = 3;
   }
   else if (format==OSMESA_ARGB) {
      redBits = CHAN_BITS;
      greenBits = CHAN_BITS;
      blueBits = CHAN_BITS;
      alphaBits = CHAN_BITS;
      aind = 0;
      rind = 1;
      gind = 2;
      bind = 3;
   }
   else if (format==OSMESA_RGB) {
      redBits = CHAN_BITS;
      greenBits = CHAN_BITS;
      blueBits = CHAN_BITS;
      alphaBits = 0;
      rind = 0;
      gind = 1;
      bind = 2;
   }
   else if (format==OSMESA_BGR) {
      redBits = CHAN_BITS;
      greenBits = CHAN_BITS;
      blueBits = CHAN_BITS;
      alphaBits = 0;
      rind = 2;
      gind = 1;
      bind = 0;
   }
#if CHAN_TYPE == GL_UNSIGNED_BYTE
   else if (format==OSMESA_RGB_565) {
      redBits = 5;
      greenBits = 6;
      blueBits = 5;
      alphaBits = 0;
      rind = 0; /* not used */
      gind = 0;
      bind = 0;
   }
#endif
   else {
      return NULL;
   }

   osmesa = (OSMesaContext) CALLOC_STRUCT(osmesa_context);
   if (osmesa) {
      osmesa->gl_visual = _mesa_create_visual( GL_FALSE,    /* double buffer */
                                               GL_FALSE,    /* stereo */
                                               redBits,
                                               greenBits,
                                               blueBits,
                                               alphaBits,
                                               depthBits,
                                               stencilBits,
                                               accumBits,
                                               accumBits,
                                               accumBits,
                                               alphaBits ? accumBits : 0,
                                               1            /* num samples */
                                               );
      if (!osmesa->gl_visual) {
         free(osmesa);
         return NULL;
      }

      /* Initialize device driver function table */
      _mesa_init_driver_functions(&functions);
      /* override with our functions */
      functions.GetString = get_string;
      functions.UpdateState = osmesa_update_state;
      functions.GetBufferSize = NULL;

      if (!_mesa_initialize_context(&osmesa->mesa,
                                    API_OPENGL_COMPAT,
                                    osmesa->gl_visual,
                                    sharelist ? &sharelist->mesa
                                              : (struct gl_context *) NULL,
                                    &functions)) {
         _mesa_destroy_visual( osmesa->gl_visual );
         free(osmesa);
         return NULL;
      }

      _mesa_enable_sw_extensions(&(osmesa->mesa));
      _mesa_enable_1_3_extensions(&(osmesa->mesa));
      _mesa_enable_1_4_extensions(&(osmesa->mesa));
      _mesa_enable_1_5_extensions(&(osmesa->mesa));
      _mesa_enable_2_0_extensions(&(osmesa->mesa));
      _mesa_enable_2_1_extensions(&(osmesa->mesa));

      osmesa->gl_buffer = _mesa_create_framebuffer(osmesa->gl_visual);
      if (!osmesa->gl_buffer) {
         _mesa_destroy_visual( osmesa->gl_visual );
         _mesa_free_context_data( &osmesa->mesa );
         free(osmesa);
         return NULL;
      }

      /* Create depth/stencil/accum buffers.  We'll create the color
       * buffer later in OSMesaMakeCurrent().
       */
      _swrast_add_soft_renderbuffers(osmesa->gl_buffer,
                                     GL_FALSE, /* color */
                                     osmesa->gl_visual->haveDepthBuffer,
                                     osmesa->gl_visual->haveStencilBuffer,
                                     osmesa->gl_visual->haveAccumBuffer,
                                     GL_FALSE, /* alpha */
                                     GL_FALSE /* aux */ );

      osmesa->format = format;
      osmesa->userRowLength = 0;
      osmesa->yup = GL_TRUE;
      osmesa->rInd = rind;
      osmesa->gInd = gind;
      osmesa->bInd = bind;
      osmesa->aInd = aind;

      _mesa_meta_init(&osmesa->mesa);

      /* Initialize the software rasterizer and helper modules. */
      {
	 struct gl_context *ctx = &osmesa->mesa;
         SWcontext *swrast;
         TNLcontext *tnl;

	 if (!_swrast_CreateContext( ctx ) ||
             !_vbo_CreateContext( ctx ) ||
             !_tnl_CreateContext( ctx ) ||
             !_swsetup_CreateContext( ctx )) {
            _mesa_destroy_visual(osmesa->gl_visual);
            _mesa_free_context_data(ctx);
            free(osmesa);
            return NULL;
         }
	
	 _swsetup_Wakeup( ctx );

         /* use default TCL pipeline */
         tnl = TNL_CONTEXT(ctx);
         tnl->Driver.RunPipeline = _tnl_run_pipeline;

         ctx->Driver.MapRenderbuffer = osmesa_MapRenderbuffer;
         ctx->Driver.UnmapRenderbuffer = osmesa_UnmapRenderbuffer;

         /* Extend the software rasterizer with our optimized line and triangle
          * drawing functions.
          */
         swrast = SWRAST_CONTEXT( ctx );
         swrast->choose_line = osmesa_choose_line;
         swrast->choose_triangle = osmesa_choose_triangle;
      }
   }
   return osmesa;
}
Exemple #11
0
/* Create the device specific context.
 */
GLboolean
r100CreateContext( gl_api api,
		   const struct gl_config *glVisual,
		   __DRIcontext *driContextPriv,
		   unsigned major_version,
		   unsigned minor_version,
		   uint32_t flags,
		   unsigned *error,
		   void *sharedContextPrivate)
{
   __DRIscreen *sPriv = driContextPriv->driScreenPriv;
   radeonScreenPtr screen = (radeonScreenPtr)(sPriv->driverPrivate);
   struct dd_function_table functions;
   r100ContextPtr rmesa;
   struct gl_context *ctx;
   int i;
   int tcl_mode, fthrottle_mode;

   switch (api) {
   case API_OPENGL_COMPAT:
      if (major_version > 1 || minor_version > 3) {
         *error = __DRI_CTX_ERROR_BAD_VERSION;
         return GL_FALSE;
      }
      break;
   case API_OPENGLES:
      break;
   default:
      *error = __DRI_CTX_ERROR_BAD_API;
      return GL_FALSE;
   }

   /* Flag filtering is handled in dri2CreateContextAttribs.
    */
   (void) flags;

   assert(glVisual);
   assert(driContextPriv);
   assert(screen);

   /* Allocate the Radeon context */
   rmesa = calloc(1, sizeof(*rmesa));
   if ( !rmesa ) {
      *error = __DRI_CTX_ERROR_NO_MEMORY;
      return GL_FALSE;
   }

   rmesa->radeon.radeonScreen = screen;
   r100_init_vtbl(&rmesa->radeon);

   /* init exp fog table data */
   radeonInitStaticFogData();
   
   /* Parse configuration files.
    * Do this here so that initialMaxAnisotropy is set before we create
    * the default textures.
    */
   driParseConfigFiles (&rmesa->radeon.optionCache, &screen->optionCache,
			screen->driScreen->myNum, "radeon");
   rmesa->radeon.initialMaxAnisotropy = driQueryOptionf(&rmesa->radeon.optionCache,
                                                 "def_max_anisotropy");

   if ( driQueryOptionb( &rmesa->radeon.optionCache, "hyperz" ) ) {
      if ( sPriv->drm_version.minor < 13 )
	 fprintf( stderr, "DRM version 1.%d too old to support HyperZ, "
			  "disabling.\n", sPriv->drm_version.minor );
      else
	 rmesa->using_hyperz = GL_TRUE;
   }

   if ( sPriv->drm_version.minor >= 15 )
      rmesa->texmicrotile = GL_TRUE;

   /* Init default driver functions then plug in our Radeon-specific functions
    * (the texture functions are especially important)
    */
   _mesa_init_driver_functions( &functions );
   radeonInitTextureFuncs( &rmesa->radeon, &functions );
   radeonInitQueryObjFunctions(&functions);

   if (!radeonInitContext(&rmesa->radeon, &functions,
			  glVisual, driContextPriv,
			  sharedContextPrivate)) {
     free(rmesa);
     *error = __DRI_CTX_ERROR_NO_MEMORY;
     return GL_FALSE;
   }

   rmesa->radeon.swtcl.RenderIndex = ~0;
   rmesa->radeon.hw.all_dirty = GL_TRUE;

   ctx = &rmesa->radeon.glCtx;
   /* Initialize the software rasterizer and helper modules.
    */
   _swrast_CreateContext( ctx );
   _vbo_CreateContext( ctx );
   _tnl_CreateContext( ctx );
   _swsetup_CreateContext( ctx );
   _ae_create_context( ctx );

   /* Set the maximum texture size small enough that we can guarentee that
    * all texture units can bind a maximal texture and have all of them in
    * texturable memory at once. Depending on the allow_large_textures driconf
    * setting allow larger textures.
    */

   ctx->Const.MaxTextureUnits = driQueryOptioni (&rmesa->radeon.optionCache,
						 "texture_units");
   ctx->Const.FragmentProgram.MaxTextureImageUnits = ctx->Const.MaxTextureUnits;
   ctx->Const.MaxTextureCoordUnits = ctx->Const.MaxTextureUnits;
   ctx->Const.MaxCombinedTextureImageUnits = ctx->Const.MaxTextureUnits;

   ctx->Const.StripTextureBorder = GL_TRUE;

   i = driQueryOptioni( &rmesa->radeon.optionCache, "allow_large_textures");

   /* FIXME: When no memory manager is available we should set this 
    * to some reasonable value based on texture memory pool size */
   ctx->Const.MaxTextureLevels = 12;
   ctx->Const.Max3DTextureLevels = 9;
   ctx->Const.MaxCubeTextureLevels = 12;
   ctx->Const.MaxTextureRectSize = 2048;

   ctx->Const.MaxTextureMaxAnisotropy = 16.0;

   /* No wide points.
    */
   ctx->Const.MinPointSize = 1.0;
   ctx->Const.MinPointSizeAA = 1.0;
   ctx->Const.MaxPointSize = 1.0;
   ctx->Const.MaxPointSizeAA = 1.0;

   ctx->Const.MinLineWidth = 1.0;
   ctx->Const.MinLineWidthAA = 1.0;
   ctx->Const.MaxLineWidth = 10.0;
   ctx->Const.MaxLineWidthAA = 10.0;
   ctx->Const.LineWidthGranularity = 0.0625;

   /* Set maxlocksize (and hence vb size) small enough to avoid
    * fallbacks in radeon_tcl.c.  ie. guarentee that all vertices can
    * fit in a single dma buffer for indexed rendering of quad strips,
    * etc.
    */
   ctx->Const.MaxArrayLockSize = 
      MIN2( ctx->Const.MaxArrayLockSize, 
 	    RADEON_BUFFER_SIZE / RADEON_MAX_TCL_VERTSIZE ); 

   rmesa->boxes = 0;

   ctx->Const.MaxDrawBuffers = 1;
   ctx->Const.MaxColorAttachments = 1;
   ctx->Const.MaxRenderbufferSize = 2048;

   ctx->ShaderCompilerOptions[MESA_SHADER_VERTEX].PreferDP4 = true;

   /* Install the customized pipeline:
    */
   _tnl_destroy_pipeline( ctx );
   _tnl_install_pipeline( ctx, radeon_pipeline );

   /* Try and keep materials and vertices separate:
    */
/*    _tnl_isolate_materials( ctx, GL_TRUE ); */

   /* Configure swrast and T&L to match hardware characteristics:
    */
   _swrast_allow_pixel_fog( ctx, GL_FALSE );
   _swrast_allow_vertex_fog( ctx, GL_TRUE );
   _tnl_allow_pixel_fog( ctx, GL_FALSE );
   _tnl_allow_vertex_fog( ctx, GL_TRUE );


   for ( i = 0 ; i < RADEON_MAX_TEXTURE_UNITS ; i++ ) {
      _math_matrix_ctr( &rmesa->TexGenMatrix[i] );
      _math_matrix_ctr( &rmesa->tmpmat[i] );
      _math_matrix_set_identity( &rmesa->TexGenMatrix[i] );
      _math_matrix_set_identity( &rmesa->tmpmat[i] );
   }

   ctx->Extensions.ARB_texture_border_clamp = true;
   ctx->Extensions.ARB_texture_env_combine = true;
   ctx->Extensions.ARB_texture_env_crossbar = true;
   ctx->Extensions.ARB_texture_env_dot3 = true;
   ctx->Extensions.EXT_fog_coord = true;
   ctx->Extensions.EXT_packed_depth_stencil = true;
   ctx->Extensions.EXT_secondary_color = true;
   ctx->Extensions.EXT_texture_env_dot3 = true;
   ctx->Extensions.EXT_texture_filter_anisotropic = true;
   ctx->Extensions.EXT_texture_mirror_clamp = true;
   ctx->Extensions.ATI_texture_env_combine3 = true;
   ctx->Extensions.ATI_texture_mirror_once = true;
   ctx->Extensions.MESA_ycbcr_texture = true;
   ctx->Extensions.NV_blend_square = true;
   ctx->Extensions.OES_EGL_image = true;
   ctx->Extensions.EXT_framebuffer_object = true;
   ctx->Extensions.ARB_texture_cube_map = true;

   if (rmesa->radeon.glCtx.Mesa_DXTn) {
      ctx->Extensions.EXT_texture_compression_s3tc = true;
      ctx->Extensions.ANGLE_texture_compression_dxt = true;
   }
   else if (driQueryOptionb (&rmesa->radeon.optionCache, "force_s3tc_enable")) {
      ctx->Extensions.EXT_texture_compression_s3tc = true;
      ctx->Extensions.ANGLE_texture_compression_dxt = true;
   }

   ctx->Extensions.NV_texture_rectangle = true;
   ctx->Extensions.ARB_occlusion_query = true;

   /* XXX these should really go right after _mesa_init_driver_functions() */
   radeon_fbo_init(&rmesa->radeon);
   radeonInitSpanFuncs( ctx );
   radeonInitIoctlFuncs( ctx );
   radeonInitStateFuncs( ctx );
   radeonInitState( rmesa );
   radeonInitSwtcl( ctx );

   _mesa_vector4f_alloc( &rmesa->tcl.ObjClean, 0, 
			 ctx->Const.MaxArrayLockSize, 32 );

   fthrottle_mode = driQueryOptioni(&rmesa->radeon.optionCache, "fthrottle_mode");
   rmesa->radeon.iw.irq_seq = -1;
   rmesa->radeon.irqsEmitted = 0;
   rmesa->radeon.do_irqs = (rmesa->radeon.radeonScreen->irq != 0 &&
			    fthrottle_mode == DRI_CONF_FTHROTTLE_IRQS);

   rmesa->radeon.do_usleeps = (fthrottle_mode == DRI_CONF_FTHROTTLE_USLEEPS);


#if DO_DEBUG
   RADEON_DEBUG = driParseDebugString( getenv( "RADEON_DEBUG" ),
				       debug_control );
#endif

   tcl_mode = driQueryOptioni(&rmesa->radeon.optionCache, "tcl_mode");
   if (driQueryOptionb(&rmesa->radeon.optionCache, "no_rast")) {
      fprintf(stderr, "disabling 3D acceleration\n");
      FALLBACK(rmesa, RADEON_FALLBACK_DISABLE, 1);
   } else if (tcl_mode == DRI_CONF_TCL_SW ||
	      !(rmesa->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL)) {
      if (rmesa->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL) {
	 rmesa->radeon.radeonScreen->chip_flags &= ~RADEON_CHIPSET_TCL;
	 fprintf(stderr, "Disabling HW TCL support\n");
      }
      TCL_FALLBACK(&rmesa->radeon.glCtx, RADEON_TCL_FALLBACK_TCL_DISABLE, 1);
   }

   if (rmesa->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL) {
/*       _tnl_need_dlist_norm_lengths( ctx, GL_FALSE ); */
   }

   _mesa_compute_version(ctx);

   /* Exec table initialization requires the version to be computed */
   _mesa_initialize_dispatch_tables(ctx);
   _mesa_initialize_vbo_vtxfmt(ctx);

   *error = __DRI_CTX_ERROR_SUCCESS;
   return GL_TRUE;
}
Exemple #12
0
static GLboolean
dri_create_context(gl_api api,
		   const struct gl_config * visual,
		   __DRIcontext * cPriv,
		   unsigned major_version,
		   unsigned minor_version,
		   uint32_t flags,
		   bool notify_reset,
		   unsigned *error,
		   void *sharedContextPrivate)
{
    struct dri_context *ctx = NULL;
    struct dri_context *share = (struct dri_context *)sharedContextPrivate;
    struct gl_context *mesaCtx = NULL;
    struct gl_context *sharedCtx = NULL;
    struct dd_function_table functions;

    TRACE;

    /* Flag filtering is handled in dri2CreateContextAttribs.
     */
    (void) flags;

    ctx = CALLOC_STRUCT(dri_context);
    if (ctx == NULL) {
	*error = __DRI_CTX_ERROR_NO_MEMORY;
	goto context_fail;
    }

    cPriv->driverPrivate = ctx;
    ctx->cPriv = cPriv;

    /* build table of device driver functions */
    _mesa_init_driver_functions(&functions);
    swrast_init_driver_functions(&functions);

    if (share) {
	sharedCtx = &share->Base;
    }

    mesaCtx = &ctx->Base;

    /* basic context setup */
    if (!_mesa_initialize_context(mesaCtx, api, visual, sharedCtx, &functions)) {
	*error = __DRI_CTX_ERROR_NO_MEMORY;
	goto context_fail;
    }

    driContextSetFlags(mesaCtx, flags);

    /* create module contexts */
    _swrast_CreateContext( mesaCtx );
    _vbo_CreateContext( mesaCtx );
    _tnl_CreateContext( mesaCtx );
    _swsetup_CreateContext( mesaCtx );
    _swsetup_Wakeup( mesaCtx );

    /* use default TCL pipeline */
    {
       TNLcontext *tnl = TNL_CONTEXT(mesaCtx);
       tnl->Driver.RunPipeline = _tnl_run_pipeline;
    }

    _mesa_meta_init(mesaCtx);
    _mesa_enable_sw_extensions(mesaCtx);

    _mesa_compute_version(mesaCtx);

    _mesa_initialize_dispatch_tables(mesaCtx);
    _mesa_initialize_vbo_vtxfmt(mesaCtx);

    *error = __DRI_CTX_ERROR_SUCCESS;
    return GL_TRUE;

context_fail:

    free(ctx);

    return GL_FALSE;
}
Exemple #13
0
static GLboolean
dri_create_context(gl_api api,
		   const struct gl_config * visual,
		   __DRIcontext * cPriv,
		   unsigned major_version,
		   unsigned minor_version,
		   uint32_t flags,
		   unsigned *error,
		   void *sharedContextPrivate)
{
    struct dri_context *ctx = NULL;
    struct dri_context *share = (struct dri_context *)sharedContextPrivate;
    struct gl_context *mesaCtx = NULL;
    struct gl_context *sharedCtx = NULL;
    struct dd_function_table functions;

    TRACE;

    /* Flag filtering is handled in dri2CreateContextAttribs.
     */
    (void) flags;

    switch (api) {
    case API_OPENGL_COMPAT:
        if (major_version > 2
	    || (major_version == 2 && minor_version > 1)) {
            *error = __DRI_CTX_ERROR_BAD_VERSION;
            return GL_FALSE;
        }
        break;
    case API_OPENGLES:
    case API_OPENGLES2:
        break;
    case API_OPENGL_CORE:
        *error = __DRI_CTX_ERROR_BAD_API;
        return GL_FALSE;
    }

    ctx = CALLOC_STRUCT(dri_context);
    if (ctx == NULL) {
	*error = __DRI_CTX_ERROR_NO_MEMORY;
	goto context_fail;
    }

    cPriv->driverPrivate = ctx;
    ctx->cPriv = cPriv;

    /* build table of device driver functions */
    _mesa_init_driver_functions(&functions);
    swrast_init_driver_functions(&functions);

    if (share) {
	sharedCtx = &share->Base;
    }

    mesaCtx = &ctx->Base;

    /* basic context setup */
    if (!_mesa_initialize_context(mesaCtx, api, visual, sharedCtx, &functions)) {
	*error = __DRI_CTX_ERROR_NO_MEMORY;
	goto context_fail;
    }

    /* do bounds checking to prevent segfaults and server crashes! */
    mesaCtx->Const.CheckArrayBounds = GL_TRUE;

    /* create module contexts */
    _swrast_CreateContext( mesaCtx );
    _vbo_CreateContext( mesaCtx );
    _tnl_CreateContext( mesaCtx );
    _swsetup_CreateContext( mesaCtx );
    _swsetup_Wakeup( mesaCtx );

    /* use default TCL pipeline */
    {
       TNLcontext *tnl = TNL_CONTEXT(mesaCtx);
       tnl->Driver.RunPipeline = _tnl_run_pipeline;
    }

    _mesa_meta_init(mesaCtx);
    _mesa_enable_sw_extensions(mesaCtx);

    _mesa_compute_version(mesaCtx);

    _mesa_initialize_dispatch_tables(mesaCtx);
    _mesa_initialize_vbo_vtxfmt(mesaCtx);

    *error = __DRI_CTX_ERROR_SUCCESS;
    return GL_TRUE;

context_fail:

    free(ctx);

    return GL_FALSE;
}
Exemple #14
0
//
// Input:  rect - initial rectangle
//         name - window name
//         resizingMode - example: B_FOLLOW_NONE
//         mode - usually 0 ?
//         options - Bitwise-OR of BGL_* tokens
//
BGLView::BGLView(BRect rect, char *name,
                 ulong resizingMode, ulong mode,
                 ulong options)
   : BView(rect, name, B_FOLLOW_ALL_SIDES, mode | B_WILL_DRAW | B_FRAME_EVENTS) //  | B_FULL_UPDATE_ON_RESIZE)
{
	// We don't support single buffering (yet): double buffering forced.
	options |= BGL_DOUBLE;

   const GLboolean rgbFlag = ((options & BGL_INDEX) == 0);
   const GLboolean alphaFlag = ((options & BGL_ALPHA) == BGL_ALPHA);
   const GLboolean dblFlag = ((options & BGL_DOUBLE) == BGL_DOUBLE);
   const GLboolean stereoFlag = false;
   const GLint depth = (options & BGL_DEPTH) ? 16 : 0;
   const GLint stencil = (options & BGL_STENCIL) ? 8 : 0;
   const GLint accum = (options & BGL_ACCUM) ? 16 : 0;
   const GLint index = (options & BGL_INDEX) ? 32 : 0;
   const GLint red = rgbFlag ? 8 : 0;
   const GLint green = rgbFlag ? 8 : 0;
   const GLint blue = rgbFlag ? 8 : 0;
   const GLint alpha = alphaFlag ? 8 : 0;

	m_options = options | BGL_INDIRECT;

   struct dd_function_table functions;
 
   if (!rgbFlag) {
      fprintf(stderr, "Mesa Warning: color index mode not supported\n");
   }

   // Allocate auxiliary data object
   MesaDriver * md = new MesaDriver();

   // examine option flags and create gl_context struct
   GLvisual * visual = _mesa_create_visual( rgbFlag,
                                            dblFlag,
                                            stereoFlag,
                                            red, green, blue, alpha,
                                            index,
                                            depth,
                                            stencil,
                                            accum, accum, accum, accum,
                                            1
                                            );

	// Initialize device driver function table
	_mesa_init_driver_functions(&functions);

	functions.GetString 	= md->GetString;
	functions.UpdateState 	= md->UpdateState;
	functions.GetBufferSize = md->GetBufferSize;
	functions.Clear 		= md->Clear;
	functions.ClearIndex 	= md->ClearIndex;
	functions.ClearColor 	= md->ClearColor;
	functions.Error			= md->Error;
        functions.Viewport      = md->Viewport;

	// create core context
	GLcontext *ctx = _mesa_create_context(visual, NULL, &functions, md);
	if (! ctx) {
         _mesa_destroy_visual(visual);
         delete md;
         return;
      }
   _mesa_enable_sw_extensions(ctx);
   _mesa_enable_1_3_extensions(ctx);
   _mesa_enable_1_4_extensions(ctx);
   _mesa_enable_1_5_extensions(ctx);


   // create core framebuffer
   GLframebuffer * buffer = _mesa_create_framebuffer(visual,
                                              depth > 0 ? GL_TRUE : GL_FALSE,
                                              stencil > 0 ? GL_TRUE: GL_FALSE,
                                              accum > 0 ? GL_TRUE : GL_FALSE,
                                              alphaFlag
                                              );

   /* Initialize the software rasterizer and helper modules.
    */
   _swrast_CreateContext(ctx);
   _vbo_CreateContext(ctx);
   _tnl_CreateContext(ctx);
   _swsetup_CreateContext(ctx);
   _swsetup_Wakeup(ctx);

   md->Init(this, ctx, visual, buffer );

   // Hook aux data into BGLView object
   m_gc = md;

   // some stupid applications (Quake2) don't even think about calling LockGL()
   // before using glGetString and friends... so make sure there is at least a
   // valid context.
   if (!_mesa_get_current_context()) {
      LockGL();
      // not needed, we don't have a looper yet: UnlockLooper();
   }

}
Exemple #15
0
/* Create the device specific rendering context.
 */
GLboolean r200CreateContext( const __GLcontextModes *glVisual,
			     __DRIcontextPrivate *driContextPriv,
			     void *sharedContextPrivate)
{
   __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv;
   radeonScreenPtr screen = (radeonScreenPtr)(sPriv->private);
   struct dd_function_table functions;
   r200ContextPtr rmesa;
   GLcontext *ctx, *shareCtx;
   int i;
   int tcl_mode, fthrottle_mode;

   assert(glVisual);
   assert(driContextPriv);
   assert(screen);

   /* Allocate the R200 context */
   rmesa = (r200ContextPtr) CALLOC( sizeof(*rmesa) );
   if ( !rmesa )
      return GL_FALSE;
      
   /* init exp fog table data */
   r200InitStaticFogData();

   /* Parse configuration files.
    * Do this here so that initialMaxAnisotropy is set before we create
    * the default textures.
    */
   driParseConfigFiles (&rmesa->optionCache, &screen->optionCache,
			screen->driScreen->myNum, "r200");
   rmesa->initialMaxAnisotropy = driQueryOptionf(&rmesa->optionCache,
                                                 "def_max_anisotropy");

   if ( driQueryOptionb( &rmesa->optionCache, "hyperz" ) ) {
      if ( sPriv->drmMinor < 13 )
	 fprintf( stderr, "DRM version 1.%d too old to support HyperZ, "
			  "disabling.\n",sPriv->drmMinor );
      else
	 rmesa->using_hyperz = GL_TRUE;
   }
 
   if ( sPriv->drmMinor >= 15 )
      rmesa->texmicrotile = GL_TRUE;

   /* Init default driver functions then plug in our R200-specific functions
    * (the texture functions are especially important)
    */
   _mesa_init_driver_functions(&functions);
   r200InitDriverFuncs(&functions);
   r200InitIoctlFuncs(&functions);
   r200InitStateFuncs(&functions);
   r200InitTextureFuncs(&functions);
   r200InitShaderFuncs(&functions); 

   /* Allocate and initialize the Mesa context */
   if (sharedContextPrivate)
      shareCtx = ((r200ContextPtr) sharedContextPrivate)->glCtx;
   else
      shareCtx = NULL;
   rmesa->glCtx = _mesa_create_context(glVisual, shareCtx,
                                       &functions, (void *) rmesa);
   if (!rmesa->glCtx) {
      FREE(rmesa);
      return GL_FALSE;
   }
   driContextPriv->driverPrivate = rmesa;

   /* Init r200 context data */
   rmesa->dri.context = driContextPriv;
   rmesa->dri.screen = sPriv;
   rmesa->dri.drawable = NULL; /* Set by XMesaMakeCurrent */
   rmesa->dri.hwContext = driContextPriv->hHWContext;
   rmesa->dri.hwLock = &sPriv->pSAREA->lock;
   rmesa->dri.fd = sPriv->fd;
   rmesa->dri.drmMinor = sPriv->drmMinor;

   rmesa->r200Screen = screen;
   rmesa->sarea = (drm_radeon_sarea_t *)((GLubyte *)sPriv->pSAREA +
				       screen->sarea_priv_offset);


   rmesa->dma.buf0_address = rmesa->r200Screen->buffers->list[0].address;

   (void) memset( rmesa->texture_heaps, 0, sizeof( rmesa->texture_heaps ) );
   make_empty_list( & rmesa->swapped );

   rmesa->nr_heaps = 1 /* screen->numTexHeaps */ ;
   assert(rmesa->nr_heaps < RADEON_NR_TEX_HEAPS);
   for ( i = 0 ; i < rmesa->nr_heaps ; i++ ) {
      rmesa->texture_heaps[i] = driCreateTextureHeap( i, rmesa,
	    screen->texSize[i],
	    12,
	    RADEON_NR_TEX_REGIONS,
	    (drmTextureRegionPtr)rmesa->sarea->tex_list[i],
	    & rmesa->sarea->tex_age[i],
	    & rmesa->swapped,
	    sizeof( r200TexObj ),
	    (destroy_texture_object_t *) r200DestroyTexObj );
   }
   rmesa->texture_depth = driQueryOptioni (&rmesa->optionCache,
					   "texture_depth");
   if (rmesa->texture_depth == DRI_CONF_TEXTURE_DEPTH_FB)
      rmesa->texture_depth = ( screen->cpp == 4 ) ?
	 DRI_CONF_TEXTURE_DEPTH_32 : DRI_CONF_TEXTURE_DEPTH_16;

   rmesa->swtcl.RenderIndex = ~0;
   rmesa->hw.all_dirty = 1;

   /* Set the maximum texture size small enough that we can guarentee that
    * all texture units can bind a maximal texture and have all of them in
    * texturable memory at once. Depending on the allow_large_textures driconf
    * setting allow larger textures.
    */

   ctx = rmesa->glCtx;
   ctx->Const.MaxTextureUnits = driQueryOptioni (&rmesa->optionCache,
						 "texture_units");
   ctx->Const.MaxTextureImageUnits = ctx->Const.MaxTextureUnits;
   ctx->Const.MaxTextureCoordUnits = ctx->Const.MaxTextureUnits;

   i = driQueryOptioni( &rmesa->optionCache, "allow_large_textures");

   driCalculateMaxTextureLevels( rmesa->texture_heaps,
				 rmesa->nr_heaps,
				 & ctx->Const,
				 4,
				 11, /* max 2D texture size is 2048x2048 */
#if ENABLE_HW_3D_TEXTURE
				 8,  /* max 3D texture size is 256^3 */
#else
				 0,  /* 3D textures unsupported */
#endif
				 11, /* max cube texture size is 2048x2048 */
				 11, /* max texture rectangle size is 2048x2048 */
				 12,
				 GL_FALSE,
				 i );

   ctx->Const.MaxTextureMaxAnisotropy = 16.0;

   /* No wide AA points.
    */
   ctx->Const.MinPointSize = 1.0;
   ctx->Const.MinPointSizeAA = 1.0;
   ctx->Const.MaxPointSizeAA = 1.0;
   ctx->Const.PointSizeGranularity = 0.0625;
   if (rmesa->r200Screen->drmSupportsPointSprites)
      ctx->Const.MaxPointSize = 2047.0;
   else
      ctx->Const.MaxPointSize = 1.0;

   /* mesa initialization problem - _mesa_init_point was already called */
   ctx->Point.MaxSize = ctx->Const.MaxPointSize;

   ctx->Const.MinLineWidth = 1.0;
   ctx->Const.MinLineWidthAA = 1.0;
   ctx->Const.MaxLineWidth = 10.0;
   ctx->Const.MaxLineWidthAA = 10.0;
   ctx->Const.LineWidthGranularity = 0.0625;

   ctx->Const.VertexProgram.MaxNativeInstructions = R200_VSF_MAX_INST;
   ctx->Const.VertexProgram.MaxNativeAttribs = 12;
   ctx->Const.VertexProgram.MaxNativeTemps = R200_VSF_MAX_TEMPS;
   ctx->Const.VertexProgram.MaxNativeParameters = R200_VSF_MAX_PARAM;
   ctx->Const.VertexProgram.MaxNativeAddressRegs = 1;

   /* Initialize the software rasterizer and helper modules.
    */
   _swrast_CreateContext( ctx );
   _vbo_CreateContext( ctx );
   _tnl_CreateContext( ctx );
   _swsetup_CreateContext( ctx );
   _ae_create_context( ctx );

   /* Install the customized pipeline:
    */
   _tnl_destroy_pipeline( ctx );
   _tnl_install_pipeline( ctx, r200_pipeline );

   /* Try and keep materials and vertices separate:
    */
/*    _tnl_isolate_materials( ctx, GL_TRUE ); */


   /* Configure swrast and TNL to match hardware characteristics:
    */
   _swrast_allow_pixel_fog( ctx, GL_FALSE );
   _swrast_allow_vertex_fog( ctx, GL_TRUE );
   _tnl_allow_pixel_fog( ctx, GL_FALSE );
   _tnl_allow_vertex_fog( ctx, GL_TRUE );


   for ( i = 0 ; i < R200_MAX_TEXTURE_UNITS ; i++ ) {
      _math_matrix_ctr( &rmesa->TexGenMatrix[i] );
      _math_matrix_set_identity( &rmesa->TexGenMatrix[i] );
   }
   _math_matrix_ctr( &rmesa->tmpmat );
   _math_matrix_set_identity( &rmesa->tmpmat );

   driInitExtensions( ctx, card_extensions, GL_TRUE );
   if (!(rmesa->r200Screen->chip_flags & R200_CHIPSET_YCBCR_BROKEN)) {
     /* yuv textures don't work with some chips - R200 / rv280 okay so far
	others get the bit ordering right but don't actually do YUV-RGB conversion */
      _mesa_enable_extension( ctx, "GL_MESA_ycbcr_texture" );
   }
   if (rmesa->glCtx->Mesa_DXTn) {
      _mesa_enable_extension( ctx, "GL_EXT_texture_compression_s3tc" );
      _mesa_enable_extension( ctx, "GL_S3_s3tc" );
   }
   else if (driQueryOptionb (&rmesa->optionCache, "force_s3tc_enable")) {
      _mesa_enable_extension( ctx, "GL_EXT_texture_compression_s3tc" );
   }

   if (rmesa->r200Screen->drmSupportsCubeMapsR200)
      _mesa_enable_extension( ctx, "GL_ARB_texture_cube_map" );
   if (rmesa->r200Screen->drmSupportsBlendColor) {
       driInitExtensions( ctx, blend_extensions, GL_FALSE );
   }
   if(rmesa->r200Screen->drmSupportsVertexProgram)
      driInitSingleExtension( ctx, ARB_vp_extension );
   if(driQueryOptionb(&rmesa->optionCache, "nv_vertex_program"))
      driInitSingleExtension( ctx, NV_vp_extension );

   if ((ctx->Const.MaxTextureUnits == 6) && rmesa->r200Screen->drmSupportsFragShader)
      driInitSingleExtension( ctx, ATI_fs_extension );
   if (rmesa->r200Screen->drmSupportsPointSprites)
      driInitExtensions( ctx, point_extensions, GL_FALSE );
#if 0
   r200InitDriverFuncs( ctx );
   r200InitIoctlFuncs( ctx );
   r200InitStateFuncs( ctx );
   r200InitTextureFuncs( ctx );
#endif
   /* plug in a few more device driver functions */
   /* XXX these should really go right after _mesa_init_driver_functions() */
   r200InitPixelFuncs( ctx );
   r200InitSpanFuncs( ctx );
   r200InitTnlFuncs( ctx );
   r200InitState( rmesa );
   r200InitSwtcl( ctx );

   fthrottle_mode = driQueryOptioni(&rmesa->optionCache, "fthrottle_mode");
   rmesa->iw.irq_seq = -1;
   rmesa->irqsEmitted = 0;
   rmesa->do_irqs = (fthrottle_mode == DRI_CONF_FTHROTTLE_IRQS &&
		     rmesa->r200Screen->irq);

   rmesa->do_usleeps = (fthrottle_mode == DRI_CONF_FTHROTTLE_USLEEPS);

   if (!rmesa->do_irqs)
      fprintf(stderr,
	      "IRQ's not enabled, falling back to %s: %d %d\n",
	      rmesa->do_usleeps ? "usleeps" : "busy waits",
	      fthrottle_mode,
	      rmesa->r200Screen->irq);

   rmesa->vblank_flags = (rmesa->r200Screen->irq != 0)
       ? driGetDefaultVBlankFlags(&rmesa->optionCache) : VBLANK_FLAG_NO_IRQ;

   rmesa->prefer_gart_client_texturing = 
      (getenv("R200_GART_CLIENT_TEXTURES") != 0);

   (*dri_interface->getUST)( & rmesa->swap_ust );


#if DO_DEBUG
   R200_DEBUG  = driParseDebugString( getenv( "R200_DEBUG" ),
				      debug_control );
   R200_DEBUG |= driParseDebugString( getenv( "RADEON_DEBUG" ),
				      debug_control );
#endif

   tcl_mode = driQueryOptioni(&rmesa->optionCache, "tcl_mode");
   if (driQueryOptionb(&rmesa->optionCache, "no_rast")) {
      fprintf(stderr, "disabling 3D acceleration\n");
      FALLBACK(rmesa, R200_FALLBACK_DISABLE, 1);
   }
   else if (tcl_mode == DRI_CONF_TCL_SW || getenv("R200_NO_TCL") ||
	    !(rmesa->r200Screen->chip_flags & RADEON_CHIPSET_TCL)) {
      if (rmesa->r200Screen->chip_flags & RADEON_CHIPSET_TCL) {
	 rmesa->r200Screen->chip_flags &= ~RADEON_CHIPSET_TCL;
	 fprintf(stderr, "Disabling HW TCL support\n");
      }
      TCL_FALLBACK(rmesa->glCtx, R200_TCL_FALLBACK_TCL_DISABLE, 1);
   }

   return GL_TRUE;
}
Exemple #16
0
/* Create the device specific context.
 */
GLboolean
radeonCreateContext( const __GLcontextModes *glVisual,
                     __DRIcontextPrivate *driContextPriv,
                     void *sharedContextPrivate)
{
   __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv;
   radeonScreenPtr screen = (radeonScreenPtr)(sPriv->private);
   struct dd_function_table functions;
   radeonContextPtr rmesa;
   GLcontext *ctx, *shareCtx;
   int i;
   int tcl_mode, fthrottle_mode;

   assert(glVisual);
   assert(driContextPriv);
   assert(screen);

   /* Allocate the Radeon context */
   rmesa = (radeonContextPtr) CALLOC( sizeof(*rmesa) );
   if ( !rmesa )
      return GL_FALSE;

   /* init exp fog table data */
   radeonInitStaticFogData();
   
   /* Parse configuration files.
    * Do this here so that initialMaxAnisotropy is set before we create
    * the default textures.
    */
   driParseConfigFiles (&rmesa->optionCache, &screen->optionCache,
			screen->driScreen->myNum, "radeon");
   rmesa->initialMaxAnisotropy = driQueryOptionf(&rmesa->optionCache,
                                                 "def_max_anisotropy");

   if ( driQueryOptionb( &rmesa->optionCache, "hyperz" ) ) {
      if ( sPriv->drm_version.minor < 13 )
	 fprintf( stderr, "DRM version 1.%d too old to support HyperZ, "
			  "disabling.\n", sPriv->drm_version.minor );
      else
	 rmesa->using_hyperz = GL_TRUE;
   }

   if ( sPriv->drm_version.minor >= 15 )
      rmesa->texmicrotile = GL_TRUE;

   /* Init default driver functions then plug in our Radeon-specific functions
    * (the texture functions are especially important)
    */
   _mesa_init_driver_functions( &functions );
   radeonInitDriverFuncs( &functions );
   radeonInitTextureFuncs( &functions );

   /* Allocate the Mesa context */
   if (sharedContextPrivate)
      shareCtx = ((radeonContextPtr) sharedContextPrivate)->glCtx;
   else
      shareCtx = NULL;
   rmesa->glCtx = _mesa_create_context(glVisual, shareCtx,
                                       &functions, (void *) rmesa);
   if (!rmesa->glCtx) {
      FREE(rmesa);
      return GL_FALSE;
   }
   driContextPriv->driverPrivate = rmesa;

   /* Init radeon context data */
   rmesa->dri.context = driContextPriv;
   rmesa->dri.screen = sPriv;
   rmesa->dri.drawable = NULL;
   rmesa->dri.readable = NULL;
   rmesa->dri.hwContext = driContextPriv->hHWContext;
   rmesa->dri.hwLock = &sPriv->pSAREA->lock;
   rmesa->dri.fd = sPriv->fd;
   rmesa->dri.drmMinor = sPriv->drm_version.minor;

   rmesa->radeonScreen = screen;
   rmesa->sarea = (drm_radeon_sarea_t *)((GLubyte *)sPriv->pSAREA +
				       screen->sarea_priv_offset);


   rmesa->dma.buf0_address = rmesa->radeonScreen->buffers->list[0].address;

   (void) memset( rmesa->texture_heaps, 0, sizeof( rmesa->texture_heaps ) );
   make_empty_list( & rmesa->swapped );

   rmesa->nr_heaps = screen->numTexHeaps;
   for ( i = 0 ; i < rmesa->nr_heaps ; i++ ) {
      rmesa->texture_heaps[i] = driCreateTextureHeap( i, rmesa,
	    screen->texSize[i],
	    12,
	    RADEON_NR_TEX_REGIONS,
	    (drmTextureRegionPtr)rmesa->sarea->tex_list[i],
	    & rmesa->sarea->tex_age[i],
	    & rmesa->swapped,
	    sizeof( radeonTexObj ),
	    (destroy_texture_object_t *) radeonDestroyTexObj );

      driSetTextureSwapCounterLocation( rmesa->texture_heaps[i],
					& rmesa->c_textureSwaps );
   }
   rmesa->texture_depth = driQueryOptioni (&rmesa->optionCache,
					   "texture_depth");
   if (rmesa->texture_depth == DRI_CONF_TEXTURE_DEPTH_FB)
      rmesa->texture_depth = ( screen->cpp == 4 ) ?
	 DRI_CONF_TEXTURE_DEPTH_32 : DRI_CONF_TEXTURE_DEPTH_16;

   rmesa->swtcl.RenderIndex = ~0;
   rmesa->hw.all_dirty = GL_TRUE;

   /* Set the maximum texture size small enough that we can guarentee that
    * all texture units can bind a maximal texture and have all of them in
    * texturable memory at once. Depending on the allow_large_textures driconf
    * setting allow larger textures.
    */

   ctx = rmesa->glCtx;
   ctx->Const.MaxTextureUnits = driQueryOptioni (&rmesa->optionCache,
						 "texture_units");
   ctx->Const.MaxTextureImageUnits = ctx->Const.MaxTextureUnits;
   ctx->Const.MaxTextureCoordUnits = ctx->Const.MaxTextureUnits;

   i = driQueryOptioni( &rmesa->optionCache, "allow_large_textures");

   driCalculateMaxTextureLevels( rmesa->texture_heaps,
				 rmesa->nr_heaps,
				 & ctx->Const,
				 4,
				 11, /* max 2D texture size is 2048x2048 */
				 8,  /* 256^3 */
				 9,  /* \todo: max cube texture size seems to be 512x512(x6) */
				 11, /* max rect texture size is 2048x2048. */
				 12,
				 GL_FALSE,
				 i );


   ctx->Const.MaxTextureMaxAnisotropy = 16.0;

   /* No wide points.
    */
   ctx->Const.MinPointSize = 1.0;
   ctx->Const.MinPointSizeAA = 1.0;
   ctx->Const.MaxPointSize = 1.0;
   ctx->Const.MaxPointSizeAA = 1.0;

   ctx->Const.MinLineWidth = 1.0;
   ctx->Const.MinLineWidthAA = 1.0;
   ctx->Const.MaxLineWidth = 10.0;
   ctx->Const.MaxLineWidthAA = 10.0;
   ctx->Const.LineWidthGranularity = 0.0625;

   /* Set maxlocksize (and hence vb size) small enough to avoid
    * fallbacks in radeon_tcl.c.  ie. guarentee that all vertices can
    * fit in a single dma buffer for indexed rendering of quad strips,
    * etc.
    */
   ctx->Const.MaxArrayLockSize = 
      MIN2( ctx->Const.MaxArrayLockSize, 
 	    RADEON_BUFFER_SIZE / RADEON_MAX_TCL_VERTSIZE ); 

   rmesa->boxes = 0;

   ctx->Const.MaxDrawBuffers = 1;

   _mesa_set_mvp_with_dp4( ctx, GL_TRUE );

   /* Initialize the software rasterizer and helper modules.
    */
   _swrast_CreateContext( ctx );
   _vbo_CreateContext( ctx );
   _tnl_CreateContext( ctx );
   _swsetup_CreateContext( ctx );
   _ae_create_context( ctx );

   /* Install the customized pipeline:
    */
   _tnl_destroy_pipeline( ctx );
   _tnl_install_pipeline( ctx, radeon_pipeline );

   /* Try and keep materials and vertices separate:
    */
/*    _tnl_isolate_materials( ctx, GL_TRUE ); */

   /* Configure swrast and T&L to match hardware characteristics:
    */
   _swrast_allow_pixel_fog( ctx, GL_FALSE );
   _swrast_allow_vertex_fog( ctx, GL_TRUE );
   _tnl_allow_pixel_fog( ctx, GL_FALSE );
   _tnl_allow_vertex_fog( ctx, GL_TRUE );


   for ( i = 0 ; i < RADEON_MAX_TEXTURE_UNITS ; i++ ) {
      _math_matrix_ctr( &rmesa->TexGenMatrix[i] );
      _math_matrix_ctr( &rmesa->tmpmat[i] );
      _math_matrix_set_identity( &rmesa->TexGenMatrix[i] );
      _math_matrix_set_identity( &rmesa->tmpmat[i] );
   }

   driInitExtensions( ctx, card_extensions, GL_TRUE );
   if (rmesa->radeonScreen->drmSupportsCubeMapsR100)
      _mesa_enable_extension( ctx, "GL_ARB_texture_cube_map" );
   if (rmesa->glCtx->Mesa_DXTn) {
      _mesa_enable_extension( ctx, "GL_EXT_texture_compression_s3tc" );
      _mesa_enable_extension( ctx, "GL_S3_s3tc" );
   }
   else if (driQueryOptionb (&rmesa->optionCache, "force_s3tc_enable")) {
      _mesa_enable_extension( ctx, "GL_EXT_texture_compression_s3tc" );
   }

   if (rmesa->dri.drmMinor >= 9)
      _mesa_enable_extension( ctx, "GL_NV_texture_rectangle");

   /* XXX these should really go right after _mesa_init_driver_functions() */
   radeonInitIoctlFuncs( ctx );
   radeonInitStateFuncs( ctx );
   radeonInitSpanFuncs( ctx );
   radeonInitState( rmesa );
   radeonInitSwtcl( ctx );

   _mesa_vector4f_alloc( &rmesa->tcl.ObjClean, 0, 
			 ctx->Const.MaxArrayLockSize, 32 );

   fthrottle_mode = driQueryOptioni(&rmesa->optionCache, "fthrottle_mode");
   rmesa->iw.irq_seq = -1;
   rmesa->irqsEmitted = 0;
   rmesa->do_irqs = (rmesa->radeonScreen->irq != 0 &&
		     fthrottle_mode == DRI_CONF_FTHROTTLE_IRQS);

   rmesa->do_usleeps = (fthrottle_mode == DRI_CONF_FTHROTTLE_USLEEPS);

   (*sPriv->systemTime->getUST)( & rmesa->swap_ust );


#if DO_DEBUG
   RADEON_DEBUG = driParseDebugString( getenv( "RADEON_DEBUG" ),
				       debug_control );
#endif

   tcl_mode = driQueryOptioni(&rmesa->optionCache, "tcl_mode");
   if (driQueryOptionb(&rmesa->optionCache, "no_rast")) {
      fprintf(stderr, "disabling 3D acceleration\n");
      FALLBACK(rmesa, RADEON_FALLBACK_DISABLE, 1);
   } else if (tcl_mode == DRI_CONF_TCL_SW ||
	      !(rmesa->radeonScreen->chip_flags & RADEON_CHIPSET_TCL)) {
      if (rmesa->radeonScreen->chip_flags & RADEON_CHIPSET_TCL) {
	 rmesa->radeonScreen->chip_flags &= ~RADEON_CHIPSET_TCL;
	 fprintf(stderr, "Disabling HW TCL support\n");
      }
      TCL_FALLBACK(rmesa->glCtx, RADEON_TCL_FALLBACK_TCL_DISABLE, 1);
   }

   if (rmesa->radeonScreen->chip_flags & RADEON_CHIPSET_TCL) {
/*       _tnl_need_dlist_norm_lengths( ctx, GL_FALSE ); */
   }
   return GL_TRUE;
}
Exemple #17
0
static struct st_context *
st_create_context_priv( struct gl_context *ctx, struct pipe_context *pipe,
		const struct st_config_options *options)
{
   struct pipe_screen *screen = pipe->screen;
   uint i;
   struct st_context *st = ST_CALLOC_STRUCT( st_context );
   
   st->options = *options;

   ctx->st = st;

   st->ctx = ctx;
   st->pipe = pipe;

   /* XXX: this is one-off, per-screen init: */
   st_debug_init();
   
   /* state tracker needs the VBO module */
   _vbo_CreateContext(ctx);

   st->dirty.mesa = ~0;
   st->dirty.st = ~0;

   /* Create upload manager for vertex data for glBitmap, glDrawPixels,
    * glClear, etc.
    */
   st->uploader = u_upload_create(st->pipe, 65536, PIPE_BIND_VERTEX_BUFFER,
                                  PIPE_USAGE_STREAM);

   if (!screen->get_param(screen, PIPE_CAP_USER_INDEX_BUFFERS)) {
      st->indexbuf_uploader = u_upload_create(st->pipe, 128 * 1024,
                                              PIPE_BIND_INDEX_BUFFER,
                                              PIPE_USAGE_STREAM);
   }

   if (!screen->get_param(screen, PIPE_CAP_USER_CONSTANT_BUFFERS))
      st->constbuf_uploader = u_upload_create(pipe, 128 * 1024,
                                              PIPE_BIND_CONSTANT_BUFFER,
                                              PIPE_USAGE_STREAM);

   st->cso_context = cso_create_context(pipe);

   st_init_atoms( st );
   st_init_bitmap(st);
   st_init_clear(st);
   st_init_draw( st );

   /* Choose texture target for glDrawPixels, glBitmap, renderbuffers */
   if (pipe->screen->get_param(pipe->screen, PIPE_CAP_NPOT_TEXTURES))
      st->internal_target = PIPE_TEXTURE_2D;
   else
      st->internal_target = PIPE_TEXTURE_RECT;

   /* Vertex element objects used for drawing rectangles for glBitmap,
    * glDrawPixels, glClear, etc.
    */
   for (i = 0; i < ARRAY_SIZE(st->velems_util_draw); i++) {
      memset(&st->velems_util_draw[i], 0, sizeof(struct pipe_vertex_element));
      st->velems_util_draw[i].src_offset = i * 4 * sizeof(float);
      st->velems_util_draw[i].instance_divisor = 0;
      st->velems_util_draw[i].vertex_buffer_index =
            cso_get_aux_vertex_buffer_slot(st->cso_context);
      st->velems_util_draw[i].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
   }

   /* we want all vertex data to be placed in buffer objects */
   vbo_use_buffer_objects(ctx);


   /* make sure that no VBOs are left mapped when we're drawing. */
   vbo_always_unmap_buffers(ctx);

   /* Need these flags:
    */
   st->ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;

   st->ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;

   st->has_stencil_export =
      screen->get_param(screen, PIPE_CAP_SHADER_STENCIL_EXPORT);
   st->has_shader_model3 = screen->get_param(screen, PIPE_CAP_SM3);
   st->has_etc1 = screen->is_format_supported(screen, PIPE_FORMAT_ETC1_RGB8,
                                              PIPE_TEXTURE_2D, 0,
                                              PIPE_BIND_SAMPLER_VIEW);
   st->has_etc2 = screen->is_format_supported(screen, PIPE_FORMAT_ETC2_RGB8,
                                              PIPE_TEXTURE_2D, 0,
                                              PIPE_BIND_SAMPLER_VIEW);
   st->prefer_blit_based_texture_transfer = screen->get_param(screen,
                              PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER);
   st->force_persample_in_shader =
      screen->get_param(screen, PIPE_CAP_SAMPLE_SHADING) &&
      !screen->get_param(screen, PIPE_CAP_FORCE_PERSAMPLE_INTERP);
   st->has_shareable_shaders = screen->get_param(screen,
                                                 PIPE_CAP_SHAREABLE_SHADERS);
   st->needs_texcoord_semantic =
      screen->get_param(screen, PIPE_CAP_TGSI_TEXCOORD);
   st->apply_texture_swizzle_to_border_color =
      !!(screen->get_param(screen, PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK) &
         (PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_NV50 |
          PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_R600));
   st->has_time_elapsed =
      screen->get_param(screen, PIPE_CAP_QUERY_TIME_ELAPSED);
   st->has_half_float_packing =
      screen->get_param(screen, PIPE_CAP_TGSI_PACK_HALF_FLOAT);
   st->has_multi_draw_indirect =
      screen->get_param(screen, PIPE_CAP_MULTI_DRAW_INDIRECT);

   /* GL limits and extensions */
   st_init_limits(st->pipe->screen, &ctx->Const, &ctx->Extensions);
   st_init_extensions(st->pipe->screen, &ctx->Const,
                      &ctx->Extensions, &st->options, ctx->Mesa_DXTn);

   if (st_have_perfmon(st)) {
      ctx->Extensions.AMD_performance_monitor = GL_TRUE;
   }

   /* Enable shader-based fallbacks for ARB_color_buffer_float if needed. */
   if (screen->get_param(screen, PIPE_CAP_VERTEX_COLOR_UNCLAMPED)) {
      if (!screen->get_param(screen, PIPE_CAP_VERTEX_COLOR_CLAMPED)) {
         st->clamp_vert_color_in_shader = GL_TRUE;
      }

      if (!screen->get_param(screen, PIPE_CAP_FRAGMENT_COLOR_CLAMPED)) {
         st->clamp_frag_color_in_shader = GL_TRUE;
      }

      /* For drivers which cannot do color clamping, it's better to just
       * disable ARB_color_buffer_float in the core profile, because
       * the clamping is deprecated there anyway. */
      if (ctx->API == API_OPENGL_CORE &&
          (st->clamp_frag_color_in_shader || st->clamp_vert_color_in_shader)) {
         st->clamp_vert_color_in_shader = GL_FALSE;
         st->clamp_frag_color_in_shader = GL_FALSE;
         ctx->Extensions.ARB_color_buffer_float = GL_FALSE;
      }
   }

   /* called after _mesa_create_context/_mesa_init_point, fix default user
    * settable max point size up
    */
   st->ctx->Point.MaxSize = MAX2(ctx->Const.MaxPointSize,
                                 ctx->Const.MaxPointSizeAA);
   /* For vertex shaders, make sure not to emit saturate when SM 3.0 is not supported */
   ctx->Const.ShaderCompilerOptions[MESA_SHADER_VERTEX].EmitNoSat = !st->has_shader_model3;

   if (!ctx->Extensions.ARB_gpu_shader5) {
      for (i = 0; i < MESA_SHADER_STAGES; i++)
         ctx->Const.ShaderCompilerOptions[i].EmitNoIndirectSampler = true;
   }

   /* Set which shader types can be compiled at link time. */
   st->shader_has_one_variant[MESA_SHADER_VERTEX] =
         st->has_shareable_shaders &&
         !st->clamp_vert_color_in_shader;

   st->shader_has_one_variant[MESA_SHADER_FRAGMENT] =
         st->has_shareable_shaders &&
         !st->clamp_frag_color_in_shader &&
         !st->force_persample_in_shader;

   st->shader_has_one_variant[MESA_SHADER_TESS_CTRL] = st->has_shareable_shaders;
   st->shader_has_one_variant[MESA_SHADER_TESS_EVAL] = st->has_shareable_shaders;
   st->shader_has_one_variant[MESA_SHADER_GEOMETRY] = st->has_shareable_shaders;

   _mesa_compute_version(ctx);

   if (ctx->Version == 0) {
      /* This can happen when a core profile was requested, but the driver
       * does not support some features of GL 3.1 or later.
       */
      st_destroy_context_priv(st);
      return NULL;
   }

   _mesa_initialize_dispatch_tables(ctx);
   _mesa_initialize_vbo_vtxfmt(ctx);

   return st;
}
Exemple #18
0
/* Create the device specific context.
  */
GLboolean mach64CreateContext( const __GLcontextModes *glVisual,
			       __DRIcontextPrivate *driContextPriv,
                               void *sharedContextPrivate )
{
   GLcontext *ctx, *shareCtx;
   __DRIscreenPrivate *driScreen = driContextPriv->driScreenPriv;
   struct dd_function_table functions;
   mach64ContextPtr mmesa;
   mach64ScreenPtr mach64Screen;
   int i, heap;
   GLuint *c_textureSwapsPtr = NULL;

#if DO_DEBUG
   MACH64_DEBUG = driParseDebugString(getenv("MACH64_DEBUG"), debug_control);
#endif

   /* Allocate the mach64 context */
   mmesa = (mach64ContextPtr) CALLOC( sizeof(*mmesa) );
   if ( !mmesa ) 
      return GL_FALSE;

   /* Init default driver functions then plug in our Mach64-specific functions
    * (the texture functions are especially important)
    */
   _mesa_init_driver_functions( &functions );
   mach64InitDriverFuncs( &functions );
   mach64InitIoctlFuncs( &functions );
   mach64InitTextureFuncs( &functions );

   /* Allocate the Mesa context */
   if (sharedContextPrivate)
      shareCtx = ((mach64ContextPtr) sharedContextPrivate)->glCtx;
   else 
      shareCtx = NULL;
   mmesa->glCtx = _mesa_create_context(glVisual, shareCtx, 
					&functions, (void *)mmesa);
   if (!mmesa->glCtx) {
      FREE(mmesa);
      return GL_FALSE;
   }
   driContextPriv->driverPrivate = mmesa;
   ctx = mmesa->glCtx;

   mmesa->driContext = driContextPriv;
   mmesa->driScreen = driScreen;
   mmesa->driDrawable = NULL;
   mmesa->hHWContext = driContextPriv->hHWContext;
   mmesa->driHwLock = &driScreen->pSAREA->lock;
   mmesa->driFd = driScreen->fd;

   mach64Screen = mmesa->mach64Screen = (mach64ScreenPtr)driScreen->private;

   /* Parse configuration files */
   driParseConfigFiles (&mmesa->optionCache, &mach64Screen->optionCache,
                        mach64Screen->driScreen->myNum, "mach64");

   mmesa->sarea = (drm_mach64_sarea_t *)((char *)driScreen->pSAREA +
				    sizeof(drm_sarea_t));

   mmesa->CurrentTexObj[0] = NULL;
   mmesa->CurrentTexObj[1] = NULL;

   (void) memset( mmesa->texture_heaps, 0, sizeof( mmesa->texture_heaps ) );
   make_empty_list( &mmesa->swapped );

   mmesa->firstTexHeap = mach64Screen->firstTexHeap;
   mmesa->lastTexHeap = mach64Screen->firstTexHeap + mach64Screen->numTexHeaps;

   for ( i = mmesa->firstTexHeap ; i < mmesa->lastTexHeap ; i++ ) {
      mmesa->texture_heaps[i] = driCreateTextureHeap( i, mmesa,
	    mach64Screen->texSize[i],
	    6, /* align to 64-byte boundary, use 12 for page-size boundary */
	    MACH64_NR_TEX_REGIONS,
	    (drmTextureRegionPtr)mmesa->sarea->tex_list[i],
	    &mmesa->sarea->tex_age[i],
	    &mmesa->swapped,
	    sizeof( mach64TexObj ),
	    (destroy_texture_object_t *) mach64DestroyTexObj );

#if ENABLE_PERF_BOXES
      c_textureSwapsPtr = & mmesa->c_textureSwaps;
#endif
      driSetTextureSwapCounterLocation( mmesa->texture_heaps[i],
					c_textureSwapsPtr );
   }

   mmesa->RenderIndex = -1;		/* Impossible value */
   mmesa->vert_buf = NULL;
   mmesa->num_verts = 0;
   mmesa->new_state = MACH64_NEW_ALL;
   mmesa->dirty = MACH64_UPLOAD_ALL;

   /* Set the maximum texture size small enough that we can
    * guarentee that both texture units can bind a maximal texture
    * and have them both in memory (on-card or AGP) at once.
    * Test for 2 textures * bytes/texel * size * size.  There's no
    * need to account for mipmaps since we only upload one level.
    */

   ctx->Const.MaxTextureUnits = 2;
   ctx->Const.MaxTextureImageUnits = 2;
   ctx->Const.MaxTextureCoordUnits = 2;

   heap = mach64Screen->IsPCI ? MACH64_CARD_HEAP : MACH64_AGP_HEAP;

   driCalculateMaxTextureLevels( & mmesa->texture_heaps[heap],
				 1,
				 & ctx->Const,
				 mach64Screen->cpp,
				 10, /* max 2D texture size is 1024x1024 */
				 0,  /* 3D textures unsupported. */
				 0,  /* cube textures unsupported. */
				 0,  /* texture rectangles unsupported. */
				 1,  /* mipmapping unsupported. */
				 GL_TRUE, /* need to have both textures in
					     either local or AGP memory */
				 0 );

#if ENABLE_PERF_BOXES
   mmesa->boxes = ( getenv( "LIBGL_PERFORMANCE_BOXES" ) != NULL );
#endif

   /* Allocate the vertex buffer
    */
   mmesa->vert_buf = ALIGN_MALLOC(MACH64_BUFFER_SIZE, 32);
   if ( !mmesa->vert_buf )
      return GL_FALSE;
   mmesa->vert_used = 0;
   mmesa->vert_total = MACH64_BUFFER_SIZE;
   
   /* Initialize the software rasterizer and helper modules.
    */
   _swrast_CreateContext( ctx );
   _vbo_CreateContext( ctx );
   _tnl_CreateContext( ctx );
   _swsetup_CreateContext( ctx );

   /* Install the customized pipeline:
    */
/*     _tnl_destroy_pipeline( ctx ); */
/*     _tnl_install_pipeline( ctx, mach64_pipeline ); */

   /* Configure swrast and T&L to match hardware characteristics:
    */
   _swrast_allow_pixel_fog( ctx, GL_FALSE );
   _swrast_allow_vertex_fog( ctx, GL_TRUE );
   _tnl_allow_pixel_fog( ctx, GL_FALSE );
   _tnl_allow_vertex_fog( ctx, GL_TRUE );

   driInitExtensions( ctx, card_extensions, GL_TRUE );

   mach64InitVB( ctx );
   mach64InitTriFuncs( ctx );
   mach64DDInitStateFuncs( ctx );
   mach64DDInitSpanFuncs( ctx );
   mach64DDInitState( mmesa );

   mmesa->do_irqs = (mmesa->mach64Screen->irq && !getenv("MACH64_NO_IRQS"));

   mmesa->vblank_flags = (mmesa->do_irqs)
      ? driGetDefaultVBlankFlags(&mmesa->optionCache) : VBLANK_FLAG_NO_IRQ;

   driContextPriv->driverPrivate = (void *)mmesa;

   if (driQueryOptionb(&mmesa->optionCache, "no_rast")) {
      fprintf(stderr, "disabling 3D acceleration\n");
      FALLBACK(mmesa, MACH64_FALLBACK_DISABLE, 1);
   }

   return GL_TRUE;
}
Exemple #19
0
/**
 * New in Mesa 3.5
 *
 * Create context and specify size of ancillary buffers.
 */
GLAPI OSMesaContext GLAPIENTRY
OSMesaCreateContextExt( GLenum format, GLint depthBits, GLint stencilBits,
                        GLint accumBits, OSMesaContext sharelist )
{
   OSMesaContext osmesa;
   struct dd_function_table functions;
   GLint rind, gind, bind, aind;
   GLint indexBits = 0, redBits = 0, greenBits = 0, blueBits = 0, alphaBits =0;
   GLboolean rgbmode;
   GLenum type = CHAN_TYPE;

   rind = gind = bind = aind = 0;
   if (format==OSMESA_COLOR_INDEX) {
      indexBits = 8;
      rgbmode = GL_FALSE;
   }
   else if (format==OSMESA_RGBA) {
      indexBits = 0;
      redBits = CHAN_BITS;
      greenBits = CHAN_BITS;
      blueBits = CHAN_BITS;
      alphaBits = CHAN_BITS;
      rind = 0;
      gind = 1;
      bind = 2;
      aind = 3;
      rgbmode = GL_TRUE;
   }
   else if (format==OSMESA_BGRA) {
      indexBits = 0;
      redBits = CHAN_BITS;
      greenBits = CHAN_BITS;
      blueBits = CHAN_BITS;
      alphaBits = CHAN_BITS;
      bind = 0;
      gind = 1;
      rind = 2;
      aind = 3;
      rgbmode = GL_TRUE;
   }
   else if (format==OSMESA_ARGB) {
      indexBits = 0;
      redBits = CHAN_BITS;
      greenBits = CHAN_BITS;
      blueBits = CHAN_BITS;
      alphaBits = CHAN_BITS;
      aind = 0;
      rind = 1;
      gind = 2;
      bind = 3;
      rgbmode = GL_TRUE;
   }
   else if (format==OSMESA_RGB) {
      indexBits = 0;
      redBits = CHAN_BITS;
      greenBits = CHAN_BITS;
      blueBits = CHAN_BITS;
      alphaBits = 0;
      rind = 0;
      gind = 1;
      bind = 2;
      rgbmode = GL_TRUE;
   }
   else if (format==OSMESA_BGR) {
      indexBits = 0;
      redBits = CHAN_BITS;
      greenBits = CHAN_BITS;
      blueBits = CHAN_BITS;
      alphaBits = 0;
      rind = 2;
      gind = 1;
      bind = 0;
      rgbmode = GL_TRUE;
   }
#if CHAN_TYPE == GL_UNSIGNED_BYTE
   else if (format==OSMESA_RGB_565) {
      indexBits = 0;
      redBits = 5;
      greenBits = 6;
      blueBits = 5;
      alphaBits = 0;
      rind = 0; /* not used */
      gind = 0;
      bind = 0;
      rgbmode = GL_TRUE;
   }
#endif
   else {
      return NULL;
   }

   osmesa = (OSMesaContext) CALLOC_STRUCT(osmesa_context);
   if (osmesa) {
      osmesa->gl_visual = _mesa_create_visual( rgbmode,
                                               GL_FALSE,    /* double buffer */
                                               GL_FALSE,    /* stereo */
                                               redBits,
                                               greenBits,
                                               blueBits,
                                               alphaBits,
                                               indexBits,
                                               depthBits,
                                               stencilBits,
                                               accumBits,
                                               accumBits,
                                               accumBits,
                                               alphaBits ? accumBits : 0,
                                               1            /* num samples */
                                               );
      if (!osmesa->gl_visual) {
         _mesa_free(osmesa);
         return NULL;
      }

      /* Initialize device driver function table */
      _mesa_init_driver_functions(&functions);
      /* override with our functions */
      functions.GetString = get_string;
      functions.UpdateState = osmesa_update_state;
      functions.GetBufferSize = NULL;

      if (!_mesa_initialize_context(&osmesa->mesa,
                                    osmesa->gl_visual,
                                    sharelist ? &sharelist->mesa
                                              : (GLcontext *) NULL,
                                    &functions, (void *) osmesa)) {
         _mesa_destroy_visual( osmesa->gl_visual );
         _mesa_free(osmesa);
         return NULL;
      }

      _mesa_enable_sw_extensions(&(osmesa->mesa));
      _mesa_enable_1_3_extensions(&(osmesa->mesa));
      _mesa_enable_1_4_extensions(&(osmesa->mesa));
      _mesa_enable_1_5_extensions(&(osmesa->mesa));

      osmesa->gl_buffer = _mesa_create_framebuffer(osmesa->gl_visual);
      if (!osmesa->gl_buffer) {
         _mesa_destroy_visual( osmesa->gl_visual );
         _mesa_free_context_data( &osmesa->mesa );
         _mesa_free(osmesa);
         return NULL;
      }

      /* create front color buffer in user-provided memory (no back buffer) */
      osmesa->rb = new_osmesa_renderbuffer(&osmesa->mesa, format, type);
      _mesa_add_renderbuffer(osmesa->gl_buffer, BUFFER_FRONT_LEFT, osmesa->rb);
      assert(osmesa->rb->RefCount == 2);
                        
      _mesa_add_soft_renderbuffers(osmesa->gl_buffer,
                                   GL_FALSE, /* color */
                                   osmesa->gl_visual->haveDepthBuffer,
                                   osmesa->gl_visual->haveStencilBuffer,
                                   osmesa->gl_visual->haveAccumBuffer,
                                   GL_FALSE, /* alpha */
                                   GL_FALSE /* aux */ );

      osmesa->format = format;
      osmesa->userRowLength = 0;
      osmesa->yup = GL_TRUE;
      osmesa->rInd = rind;
      osmesa->gInd = gind;
      osmesa->bInd = bind;
      osmesa->aInd = aind;

      /* Initialize the software rasterizer and helper modules. */
      {
	 GLcontext *ctx = &osmesa->mesa;
         SWcontext *swrast;
         TNLcontext *tnl;

	 if (!_swrast_CreateContext( ctx ) ||
             !_vbo_CreateContext( ctx ) ||
             !_tnl_CreateContext( ctx ) ||
             !_swsetup_CreateContext( ctx )) {
            _mesa_destroy_visual(osmesa->gl_visual);
            _mesa_free_context_data(ctx);
            _mesa_free(osmesa);
            return NULL;
         }
	
	 _swsetup_Wakeup( ctx );

         /* use default TCL pipeline */
         tnl = TNL_CONTEXT(ctx);
         tnl->Driver.RunPipeline = _tnl_run_pipeline;

         /* Extend the software rasterizer with our optimized line and triangle
          * drawing functions.
          */
         swrast = SWRAST_CONTEXT( ctx );
         swrast->choose_line = osmesa_choose_line;
         swrast->choose_triangle = osmesa_choose_triangle;
      }
   }
   return osmesa;
}
/**
 * New in Mesa 11.2
 *
 * Create context with attribute list.
 */
GLAPI OSMesaContext GLAPIENTRY
OSMesaCreateContextAttribs(const int *attribList, OSMesaContext sharelist)
{
   OSMesaContext osmesa;
   struct dd_function_table functions;
   GLint rind, gind, bind, aind;
   GLint redBits = 0, greenBits = 0, blueBits = 0, alphaBits =0;
   GLenum format = OSMESA_RGBA;
   GLint depthBits = 0, stencilBits = 0, accumBits = 0;
   int profile = OSMESA_COMPAT_PROFILE, version_major = 1, version_minor = 0;
   gl_api api_profile = API_OPENGL_COMPAT;
   int i;

   for (i = 0; attribList[i]; i += 2) {
      switch (attribList[i]) {
      case OSMESA_FORMAT:
         format = attribList[i+1];
         switch (format) {
         case OSMESA_COLOR_INDEX:
         case OSMESA_RGBA:
         case OSMESA_BGRA:
         case OSMESA_ARGB:
         case OSMESA_RGB:
         case OSMESA_BGR:
         case OSMESA_RGB_565:
            /* legal */
            break;
         default:
            return NULL;
         }
         break;
      case OSMESA_DEPTH_BITS:
         depthBits = attribList[i+1];
         if (depthBits < 0)
            return NULL;
         break;
      case OSMESA_STENCIL_BITS:
         stencilBits = attribList[i+1];
         if (stencilBits < 0)
            return NULL;
         break;
      case OSMESA_ACCUM_BITS:
         accumBits = attribList[i+1];
         if (accumBits < 0)
            return NULL;
         break;
      case OSMESA_PROFILE:
         profile = attribList[i+1];
         if (profile == OSMESA_COMPAT_PROFILE)
            api_profile = API_OPENGL_COMPAT;
         else if (profile == OSMESA_CORE_PROFILE)
            api_profile = API_OPENGL_CORE;
         else
            return NULL;
         break;
      case OSMESA_CONTEXT_MAJOR_VERSION:
         version_major = attribList[i+1];
         if (version_major < 1)
            return NULL;
         break;
      case OSMESA_CONTEXT_MINOR_VERSION:
         version_minor = attribList[i+1];
         if (version_minor < 0)
            return NULL;
         break;
      case 0:
         /* end of list */
         break;
      default:
         fprintf(stderr, "Bad attribute in OSMesaCreateContextAttribs()\n");
         return NULL;
      }
   }

   rind = gind = bind = aind = 0;
   if (format==OSMESA_RGBA) {
      redBits = CHAN_BITS;
      greenBits = CHAN_BITS;
      blueBits = CHAN_BITS;
      alphaBits = CHAN_BITS;
      rind = 0;
      gind = 1;
      bind = 2;
      aind = 3;
   }
   else if (format==OSMESA_BGRA) {
      redBits = CHAN_BITS;
      greenBits = CHAN_BITS;
      blueBits = CHAN_BITS;
      alphaBits = CHAN_BITS;
      bind = 0;
      gind = 1;
      rind = 2;
      aind = 3;
   }
   else if (format==OSMESA_ARGB) {
      redBits = CHAN_BITS;
      greenBits = CHAN_BITS;
      blueBits = CHAN_BITS;
      alphaBits = CHAN_BITS;
      aind = 0;
      rind = 1;
      gind = 2;
      bind = 3;
   }
   else if (format==OSMESA_RGB) {
      redBits = CHAN_BITS;
      greenBits = CHAN_BITS;
      blueBits = CHAN_BITS;
      alphaBits = 0;
      rind = 0;
      gind = 1;
      bind = 2;
   }
   else if (format==OSMESA_BGR) {
      redBits = CHAN_BITS;
      greenBits = CHAN_BITS;
      blueBits = CHAN_BITS;
      alphaBits = 0;
      rind = 2;
      gind = 1;
      bind = 0;
   }
#if CHAN_TYPE == GL_UNSIGNED_BYTE
   else if (format==OSMESA_RGB_565) {
      redBits = 5;
      greenBits = 6;
      blueBits = 5;
      alphaBits = 0;
      rind = 0; /* not used */
      gind = 0;
      bind = 0;
   }
#endif
   else {
      return NULL;
   }

   osmesa = (OSMesaContext) CALLOC_STRUCT(osmesa_context);
   if (osmesa) {
      osmesa->gl_visual = _mesa_create_visual( GL_FALSE,    /* double buffer */
                                               GL_FALSE,    /* stereo */
                                               redBits,
                                               greenBits,
                                               blueBits,
                                               alphaBits,
                                               depthBits,
                                               stencilBits,
                                               accumBits,
                                               accumBits,
                                               accumBits,
                                               alphaBits ? accumBits : 0,
                                               1            /* num samples */
                                               );
      if (!osmesa->gl_visual) {
         free(osmesa);
         return NULL;
      }

      /* Initialize device driver function table */
      _mesa_init_driver_functions(&functions);
      /* override with our functions */
      functions.GetString = get_string;
      functions.UpdateState = osmesa_update_state_wrapper;

      if (!_mesa_initialize_context(&osmesa->mesa,
                                    api_profile,
                                    osmesa->gl_visual,
                                    sharelist ? &sharelist->mesa
                                              : (struct gl_context *) NULL,
                                    &functions)) {
         _mesa_destroy_visual( osmesa->gl_visual );
         free(osmesa);
         return NULL;
      }

      _mesa_enable_sw_extensions(&(osmesa->mesa));

      osmesa->gl_buffer = _mesa_create_framebuffer(osmesa->gl_visual);
      if (!osmesa->gl_buffer) {
         _mesa_destroy_visual( osmesa->gl_visual );
         _mesa_free_context_data( &osmesa->mesa );
         free(osmesa);
         return NULL;
      }

      /* Create depth/stencil/accum buffers.  We'll create the color
       * buffer later in OSMesaMakeCurrent().
       */
      _swrast_add_soft_renderbuffers(osmesa->gl_buffer,
                                     GL_FALSE, /* color */
                                     osmesa->gl_visual->haveDepthBuffer,
                                     osmesa->gl_visual->haveStencilBuffer,
                                     osmesa->gl_visual->haveAccumBuffer,
                                     GL_FALSE, /* alpha */
                                     GL_FALSE /* aux */ );

      osmesa->format = format;
      osmesa->userRowLength = 0;
      osmesa->yup = GL_TRUE;
      osmesa->rInd = rind;
      osmesa->gInd = gind;
      osmesa->bInd = bind;
      osmesa->aInd = aind;

      _mesa_meta_init(&osmesa->mesa);

      /* Initialize the software rasterizer and helper modules. */
      {
	 struct gl_context *ctx = &osmesa->mesa;
         SWcontext *swrast;
         TNLcontext *tnl;

	 if (!_swrast_CreateContext( ctx ) ||
             !_vbo_CreateContext( ctx ) ||
             !_tnl_CreateContext( ctx ) ||
             !_swsetup_CreateContext( ctx )) {
            _mesa_destroy_visual(osmesa->gl_visual);
            _mesa_free_context_data(ctx);
            free(osmesa);
            return NULL;
         }
	
	 _swsetup_Wakeup( ctx );

         /* use default TCL pipeline */
         tnl = TNL_CONTEXT(ctx);
         tnl->Driver.RunPipeline = _tnl_run_pipeline;

         ctx->Driver.MapRenderbuffer = osmesa_MapRenderbuffer;
         ctx->Driver.UnmapRenderbuffer = osmesa_UnmapRenderbuffer;

         ctx->Driver.GenerateMipmap = _mesa_generate_mipmap;

         /* Extend the software rasterizer with our optimized line and triangle
          * drawing functions.
          */
         swrast = SWRAST_CONTEXT( ctx );
         swrast->choose_line = osmesa_choose_line;
         swrast->choose_triangle = osmesa_choose_triangle;

         _mesa_compute_version(ctx);

         if (ctx->Version < version_major * 10 + version_minor) {
            _mesa_destroy_visual(osmesa->gl_visual);
            _mesa_free_context_data(ctx);
            free(osmesa);
            return NULL;
         }

         /* Exec table initialization requires the version to be computed */
         _mesa_initialize_dispatch_tables(ctx);
         _mesa_initialize_vbo_vtxfmt(ctx);
      }
   }
   return osmesa;
}
Exemple #21
0
bool
intelInitContext(struct brw_context *brw,
                 int api,
                 unsigned major_version,
                 unsigned minor_version,
                 const struct gl_config * mesaVis,
                 __DRIcontext * driContextPriv,
                 void *sharedContextPrivate,
                 struct dd_function_table *functions,
                 unsigned *dri_ctx_error)
{
   struct gl_context *ctx = &brw->ctx;
   struct gl_context *shareCtx = (struct gl_context *) sharedContextPrivate;
   __DRIscreen *sPriv = driContextPriv->driScreenPriv;
   struct intel_screen *intelScreen = sPriv->driverPrivate;
   int bo_reuse_mode;
   struct gl_config visual;

   /* we can't do anything without a connection to the device */
   if (intelScreen->bufmgr == NULL) {
      *dri_ctx_error = __DRI_CTX_ERROR_NO_MEMORY;
      return false;
   }

   if (!validate_context_version(intelScreen,
                                 api, major_version, minor_version,
                                 dri_ctx_error))
      return false;

   /* Can't rely on invalidate events, fall back to glViewport hack */
   if (!driContextPriv->driScreenPriv->dri2.useInvalidate) {
      brw->saved_viewport = functions->Viewport;
      functions->Viewport = intel_viewport;
   }

   if (mesaVis == NULL) {
      memset(&visual, 0, sizeof visual);
      mesaVis = &visual;
   }

   brw->intelScreen = intelScreen;

   if (!_mesa_initialize_context(&brw->ctx, api, mesaVis, shareCtx,
                                 functions)) {
      *dri_ctx_error = __DRI_CTX_ERROR_NO_MEMORY;
      printf("%s: failed to init mesa context\n", __FUNCTION__);
      return false;
   }

   driContextPriv->driverPrivate = brw;
   brw->driContext = driContextPriv;

   brw->gen = intelScreen->gen;

   const int devID = intelScreen->deviceID;
   if (IS_SNB_GT1(devID) || IS_IVB_GT1(devID) || IS_HSW_GT1(devID))
      brw->gt = 1;
   else if (IS_SNB_GT2(devID) || IS_IVB_GT2(devID) || IS_HSW_GT2(devID))
      brw->gt = 2;
   else if (IS_HSW_GT3(devID))
      brw->gt = 3;
   else
      brw->gt = 0;

   if (IS_HASWELL(devID)) {
      brw->is_haswell = true;
   } else if (IS_BAYTRAIL(devID)) {
      brw->is_baytrail = true;
      brw->gt = 1;
   } else if (IS_G4X(devID)) {
      brw->is_g4x = true;
   }

   brw->has_separate_stencil = brw->intelScreen->hw_has_separate_stencil;
   brw->must_use_separate_stencil = brw->intelScreen->hw_must_use_separate_stencil;
   brw->has_hiz = brw->gen >= 6;
   brw->has_llc = brw->intelScreen->hw_has_llc;
   brw->has_swizzling = brw->intelScreen->hw_has_swizzling;

   memset(&ctx->TextureFormatSupported,
	  0, sizeof(ctx->TextureFormatSupported));

   driParseConfigFiles(&brw->optionCache, &intelScreen->optionCache,
                       sPriv->myNum, "i965");

   /* Estimate the size of the mappable aperture into the GTT.  There's an
    * ioctl to get the whole GTT size, but not one to get the mappable subset.
    * It turns out it's basically always 256MB, though some ancient hardware
    * was smaller.
    */
   uint32_t gtt_size = 256 * 1024 * 1024;

   /* We don't want to map two objects such that a memcpy between them would
    * just fault one mapping in and then the other over and over forever.  So
    * we would need to divide the GTT size by 2.  Additionally, some GTT is
    * taken up by things like the framebuffer and the ringbuffer and such, so
    * be more conservative.
    */
   brw->max_gtt_map_object_size = gtt_size / 4;

   brw->bufmgr = intelScreen->bufmgr;

   bo_reuse_mode = driQueryOptioni(&brw->optionCache, "bo_reuse");
   switch (bo_reuse_mode) {
   case DRI_CONF_BO_REUSE_DISABLED:
      break;
   case DRI_CONF_BO_REUSE_ALL:
      intel_bufmgr_gem_enable_reuse(brw->bufmgr);
      break;
   }

   /* Initialize the software rasterizer and helper modules.
    *
    * As of GL 3.1 core, the gen4+ driver doesn't need the swrast context for
    * software fallbacks (which we have to support on legacy GL to do weird
    * glDrawPixels(), glBitmap(), and other functions).
    */
   if (api != API_OPENGL_CORE && api != API_OPENGLES2) {
      _swrast_CreateContext(ctx);
   }

   _vbo_CreateContext(ctx);
   if (ctx->swrast_context) {
      _tnl_CreateContext(ctx);
      _swsetup_CreateContext(ctx);

      /* Configure swrast to match hardware characteristics: */
      _swrast_allow_pixel_fog(ctx, false);
      _swrast_allow_vertex_fog(ctx, true);
   }

   _mesa_meta_init(ctx);

   intelInitExtensions(ctx);

   INTEL_DEBUG = driParseDebugString(getenv("INTEL_DEBUG"), debug_control);
   if (INTEL_DEBUG & DEBUG_BUFMGR)
      dri_bufmgr_set_debug(brw->bufmgr, true);
   if ((INTEL_DEBUG & DEBUG_SHADER_TIME) && brw->gen < 7) {
      fprintf(stderr,
              "shader_time debugging requires gen7 (Ivybridge) or better.\n");
      INTEL_DEBUG &= ~DEBUG_SHADER_TIME;
   }
   if (INTEL_DEBUG & DEBUG_PERF)
      brw->perf_debug = true;

   if (INTEL_DEBUG & DEBUG_AUB)
      drm_intel_bufmgr_gem_set_aub_dump(brw->bufmgr, true);

   intel_batchbuffer_init(brw);

   intel_fbo_init(brw);

   if (!driQueryOptionb(&brw->optionCache, "hiz")) {
       brw->has_hiz = false;
       /* On gen6, you can only do separate stencil with HIZ. */
       if (brw->gen == 6)
	  brw->has_separate_stencil = false;
   }

   if (driQueryOptionb(&brw->optionCache, "always_flush_batch")) {
      fprintf(stderr, "flushing batchbuffer before/after each draw call\n");
      brw->always_flush_batch = 1;
   }

   if (driQueryOptionb(&brw->optionCache, "always_flush_cache")) {
      fprintf(stderr, "flushing GPU caches before/after each draw call\n");
      brw->always_flush_cache = 1;
   }

   if (driQueryOptionb(&brw->optionCache, "disable_throttling")) {
      fprintf(stderr, "disabling flush throttling\n");
      brw->disable_throttling = 1;
   }

   return true;
}
/* Create the device specific context.
 */
GLboolean
r100CreateContext( gl_api api,
		   const struct gl_config *glVisual,
		   __DRIcontext *driContextPriv,
		   const struct __DriverContextConfig *ctx_config,
		   unsigned *error,
		   void *sharedContextPrivate)
{
   __DRIscreen *sPriv = driContextPriv->driScreenPriv;
   radeonScreenPtr screen = (radeonScreenPtr)(sPriv->driverPrivate);
   struct dd_function_table functions;
   r100ContextPtr rmesa;
   struct gl_context *ctx;
   int i;
   int tcl_mode, fthrottle_mode;

   if (ctx_config->flags & ~(__DRI_CTX_FLAG_DEBUG | __DRI_CTX_FLAG_NO_ERROR)) {
      *error = __DRI_CTX_ERROR_UNKNOWN_FLAG;
      return false;
   }

   if (ctx_config->attribute_mask) {
      *error = __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE;
      return false;
   }

   assert(driContextPriv);
   assert(screen);

   /* Allocate the Radeon context */
   rmesa = calloc(1, sizeof(*rmesa));
   if ( !rmesa ) {
      *error = __DRI_CTX_ERROR_NO_MEMORY;
      return GL_FALSE;
   }

   rmesa->radeon.radeonScreen = screen;
   r100_init_vtbl(&rmesa->radeon);

   /* init exp fog table data */
   radeonInitStaticFogData();
   
   /* Parse configuration files.
    * Do this here so that initialMaxAnisotropy is set before we create
    * the default textures.
    */
   driParseConfigFiles (&rmesa->radeon.optionCache, &screen->optionCache,
			screen->driScreen->myNum, "radeon", NULL);
   rmesa->radeon.initialMaxAnisotropy = driQueryOptionf(&rmesa->radeon.optionCache,
                                                 "def_max_anisotropy");

   if (driQueryOptionb(&rmesa->radeon.optionCache, "hyperz"))
      rmesa->using_hyperz = GL_TRUE;

   /* Init default driver functions then plug in our Radeon-specific functions
    * (the texture functions are especially important)
    */
   _mesa_init_driver_functions( &functions );
   _tnl_init_driver_draw_function( &functions );
   radeonInitTextureFuncs( &rmesa->radeon, &functions );
   radeonInitQueryObjFunctions(&functions);

   if (!radeonInitContext(&rmesa->radeon, api, &functions,
			  glVisual, driContextPriv,
			  sharedContextPrivate)) {
     free(rmesa);
     *error = __DRI_CTX_ERROR_NO_MEMORY;
     return GL_FALSE;
   }

   rmesa->radeon.swtcl.RenderIndex = ~0;
   rmesa->radeon.hw.all_dirty = GL_TRUE;

   ctx = &rmesa->radeon.glCtx;

   driContextSetFlags(ctx, ctx_config->flags);

   /* Initialize the software rasterizer and helper modules.
    */
   _swrast_CreateContext( ctx );
   _vbo_CreateContext( ctx );
   _tnl_CreateContext( ctx );
   _swsetup_CreateContext( ctx );

   ctx->Const.MaxTextureUnits = driQueryOptioni (&rmesa->radeon.optionCache,
						 "texture_units");
   ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits = ctx->Const.MaxTextureUnits;
   ctx->Const.MaxTextureCoordUnits = ctx->Const.MaxTextureUnits;
   ctx->Const.MaxCombinedTextureImageUnits = ctx->Const.MaxTextureUnits;

   ctx->Const.StripTextureBorder = GL_TRUE;

   /* FIXME: When no memory manager is available we should set this 
    * to some reasonable value based on texture memory pool size */
   ctx->Const.MaxTextureLevels = 12;
   ctx->Const.Max3DTextureLevels = 9;
   ctx->Const.MaxCubeTextureLevels = 12;
   ctx->Const.MaxTextureRectSize = 2048;

   ctx->Const.MaxTextureMaxAnisotropy = 16.0;

   /* No wide points.
    */
   ctx->Const.MinPointSize = 1.0;
   ctx->Const.MinPointSizeAA = 1.0;
   ctx->Const.MaxPointSize = 1.0;
   ctx->Const.MaxPointSizeAA = 1.0;

   ctx->Const.MinLineWidth = 1.0;
   ctx->Const.MinLineWidthAA = 1.0;
   ctx->Const.MaxLineWidth = 10.0;
   ctx->Const.MaxLineWidthAA = 10.0;
   ctx->Const.LineWidthGranularity = 0.0625;

   /* Set maxlocksize (and hence vb size) small enough to avoid
    * fallbacks in radeon_tcl.c.  ie. guarentee that all vertices can
    * fit in a single dma buffer for indexed rendering of quad strips,
    * etc.
    */
   ctx->Const.MaxArrayLockSize = 
      MIN2( ctx->Const.MaxArrayLockSize, 
 	    RADEON_BUFFER_SIZE / RADEON_MAX_TCL_VERTSIZE ); 

   rmesa->boxes = 0;

   ctx->Const.MaxDrawBuffers = 1;
   ctx->Const.MaxColorAttachments = 1;
   ctx->Const.MaxRenderbufferSize = 2048;

   ctx->Const.ShaderCompilerOptions[MESA_SHADER_VERTEX].OptimizeForAOS = true;

   /* Install the customized pipeline:
    */
   _tnl_destroy_pipeline( ctx );
   _tnl_install_pipeline( ctx, radeon_pipeline );

   /* Try and keep materials and vertices separate:
    */
/*    _tnl_isolate_materials( ctx, GL_TRUE ); */

   /* Configure swrast and T&L to match hardware characteristics:
    */
   _swrast_allow_pixel_fog( ctx, GL_FALSE );
   _swrast_allow_vertex_fog( ctx, GL_TRUE );
   _tnl_allow_pixel_fog( ctx, GL_FALSE );
   _tnl_allow_vertex_fog( ctx, GL_TRUE );


   for ( i = 0 ; i < RADEON_MAX_TEXTURE_UNITS ; i++ ) {
      _math_matrix_ctr( &rmesa->TexGenMatrix[i] );
      _math_matrix_ctr( &rmesa->tmpmat[i] );
      _math_matrix_set_identity( &rmesa->TexGenMatrix[i] );
      _math_matrix_set_identity( &rmesa->tmpmat[i] );
   }

   ctx->Extensions.ARB_occlusion_query = true;
   ctx->Extensions.ARB_texture_border_clamp = true;
   ctx->Extensions.ARB_texture_cube_map = true;
   ctx->Extensions.ARB_texture_env_combine = true;
   ctx->Extensions.ARB_texture_env_crossbar = true;
   ctx->Extensions.ARB_texture_env_dot3 = true;
   ctx->Extensions.ARB_texture_filter_anisotropic = true;
   ctx->Extensions.ARB_texture_mirror_clamp_to_edge = true;
   ctx->Extensions.ATI_texture_env_combine3 = true;
   ctx->Extensions.ATI_texture_mirror_once = true;
   ctx->Extensions.EXT_texture_env_dot3 = true;
   ctx->Extensions.EXT_texture_filter_anisotropic = true;
   ctx->Extensions.EXT_texture_mirror_clamp = true;
   ctx->Extensions.MESA_ycbcr_texture = true;
   ctx->Extensions.NV_texture_rectangle = true;
   ctx->Extensions.OES_EGL_image = true;

   ctx->Extensions.EXT_texture_compression_s3tc = true;
   ctx->Extensions.ANGLE_texture_compression_dxt = true;

   /* XXX these should really go right after _mesa_init_driver_functions() */
   radeon_fbo_init(&rmesa->radeon);
   radeonInitSpanFuncs( ctx );
   radeonInitIoctlFuncs( ctx );
   radeonInitStateFuncs( ctx );
   radeonInitState( rmesa );
   radeonInitSwtcl( ctx );

   _mesa_vector4f_alloc( &rmesa->tcl.ObjClean, 0, 
			 ctx->Const.MaxArrayLockSize, 32 );

   fthrottle_mode = driQueryOptioni(&rmesa->radeon.optionCache, "fthrottle_mode");
   rmesa->radeon.iw.irq_seq = -1;
   rmesa->radeon.irqsEmitted = 0;
   rmesa->radeon.do_irqs = (rmesa->radeon.radeonScreen->irq != 0 &&
			    fthrottle_mode == DRI_CONF_FTHROTTLE_IRQS);

   rmesa->radeon.do_usleeps = (fthrottle_mode == DRI_CONF_FTHROTTLE_USLEEPS);

   tcl_mode = driQueryOptioni(&rmesa->radeon.optionCache, "tcl_mode");
   if (getenv("RADEON_NO_RAST")) {
      fprintf(stderr, "disabling 3D acceleration\n");
      FALLBACK(rmesa, RADEON_FALLBACK_DISABLE, 1);
   } else if (tcl_mode == DRI_CONF_TCL_SW ||
	      !(rmesa->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL)) {
      if (rmesa->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL) {
	 rmesa->radeon.radeonScreen->chip_flags &= ~RADEON_CHIPSET_TCL;
	 fprintf(stderr, "Disabling HW TCL support\n");
      }
      TCL_FALLBACK(&rmesa->radeon.glCtx, RADEON_TCL_FALLBACK_TCL_DISABLE, 1);
   }

   if (rmesa->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL) {
/*       _tnl_need_dlist_norm_lengths( ctx, GL_FALSE ); */
   }

   _mesa_override_extensions(ctx);
   _mesa_compute_version(ctx);

   /* Exec table initialization requires the version to be computed */
   _mesa_initialize_dispatch_tables(ctx);
   _mesa_initialize_vbo_vtxfmt(ctx);

   *error = __DRI_CTX_ERROR_SUCCESS;
   return GL_TRUE;
}
Exemple #23
0
static struct st_context *
st_create_context_priv( struct gl_context *ctx, struct pipe_context *pipe,
		const struct st_config_options *options)
{
   struct pipe_screen *screen = pipe->screen;
   uint i;
   struct st_context *st = ST_CALLOC_STRUCT( st_context );
   
   st->options = *options;

   ctx->st = st;

   st->ctx = ctx;
   st->pipe = pipe;

   /* XXX: this is one-off, per-screen init: */
   st_debug_init();
   
   /* state tracker needs the VBO module */
   _vbo_CreateContext(ctx);

   st->dirty.mesa = ~0;
   st->dirty.st = ~0;

   /* Create upload manager for vertex data for glBitmap, glDrawPixels,
    * glClear, etc.
    */
   st->uploader = u_upload_create(st->pipe, 65536, 4, PIPE_BIND_VERTEX_BUFFER);

   if (!screen->get_param(screen, PIPE_CAP_USER_INDEX_BUFFERS)) {
      st->indexbuf_uploader = u_upload_create(st->pipe, 128 * 1024, 4,
                                              PIPE_BIND_INDEX_BUFFER);
   }

   if (!screen->get_param(screen, PIPE_CAP_USER_CONSTANT_BUFFERS)) {
      unsigned alignment =
         screen->get_param(screen, PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT);

      st->constbuf_uploader = u_upload_create(pipe, 128 * 1024, alignment,
                                              PIPE_BIND_CONSTANT_BUFFER);
   }

   st->cso_context = cso_create_context(pipe);

   st_init_atoms( st );
   st_init_bitmap(st);
   st_init_clear(st);
   st_init_draw( st );
   st_init_generate_mipmap(st);

   /* Choose texture target for glDrawPixels, glBitmap, renderbuffers */
   if (pipe->screen->get_param(pipe->screen, PIPE_CAP_NPOT_TEXTURES))
      st->internal_target = PIPE_TEXTURE_2D;
   else
      st->internal_target = PIPE_TEXTURE_RECT;

   /* Vertex element objects used for drawing rectangles for glBitmap,
    * glDrawPixels, glClear, etc.
    */
   for (i = 0; i < Elements(st->velems_util_draw); i++) {
      memset(&st->velems_util_draw[i], 0, sizeof(struct pipe_vertex_element));
      st->velems_util_draw[i].src_offset = i * 4 * sizeof(float);
      st->velems_util_draw[i].instance_divisor = 0;
      st->velems_util_draw[i].vertex_buffer_index =
            cso_get_aux_vertex_buffer_slot(st->cso_context);
      st->velems_util_draw[i].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
   }

   /* we want all vertex data to be placed in buffer objects */
   vbo_use_buffer_objects(ctx);


   /* make sure that no VBOs are left mapped when we're drawing. */
   vbo_always_unmap_buffers(ctx);

   /* Need these flags:
    */
   st->ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;

   st->ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;

   st->pixel_xfer.cache = _mesa_new_program_cache();

   st->has_stencil_export =
      screen->get_param(screen, PIPE_CAP_SHADER_STENCIL_EXPORT);
   st->has_shader_model3 = screen->get_param(screen, PIPE_CAP_SM3);
   st->prefer_blit_based_texture_transfer = screen->get_param(screen,
                              PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER);

   st->needs_texcoord_semantic =
      screen->get_param(screen, PIPE_CAP_TGSI_TEXCOORD);
   st->apply_texture_swizzle_to_border_color =
      !!(screen->get_param(screen, PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK) &
         (PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_NV50 |
          PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_R600));

   /* GL limits and extensions */
   st_init_limits(st);
   st_init_extensions(st);

   _mesa_compute_version(ctx);

   _mesa_initialize_dispatch_tables(ctx);
   _mesa_initialize_vbo_vtxfmt(ctx);

   return st;
}
Exemple #24
0
/* Create the device specific rendering context.
 */
GLboolean r200CreateContext( gl_api api,
			     const struct gl_config *glVisual,
			     __DRIcontext *driContextPriv,
			     unsigned major_version,
			     unsigned minor_version,
			     uint32_t flags,
			     unsigned *error,
			     void *sharedContextPrivate)
{
   __DRIscreen *sPriv = driContextPriv->driScreenPriv;
   radeonScreenPtr screen = (radeonScreenPtr)(sPriv->driverPrivate);
   struct dd_function_table functions;
   r200ContextPtr rmesa;
   struct gl_context *ctx;
   int i;
   int tcl_mode;

   /* API and flag filtering is handled in dri2CreateContextAttribs.
    */
   (void) api;
   (void) flags;

   assert(glVisual);
   assert(driContextPriv);
   assert(screen);

   /* Allocate the R200 context */
   rmesa = (r200ContextPtr) CALLOC( sizeof(*rmesa) );
   if ( !rmesa ) {
      *error = __DRI_CTX_ERROR_NO_MEMORY;
      return GL_FALSE;
   }

   rmesa->radeon.radeonScreen = screen;
   r200_init_vtbl(&rmesa->radeon);
   /* init exp fog table data */
   radeonInitStaticFogData();

   /* Parse configuration files.
    * Do this here so that initialMaxAnisotropy is set before we create
    * the default textures.
    */
   driParseConfigFiles (&rmesa->radeon.optionCache, &screen->optionCache,
			screen->driScreen->myNum, "r200");
   rmesa->radeon.initialMaxAnisotropy = driQueryOptionf(&rmesa->radeon.optionCache,
							"def_max_anisotropy");

   if ( sPriv->drm_version.major == 1
       && driQueryOptionb( &rmesa->radeon.optionCache, "hyperz" ) ) {
      if ( sPriv->drm_version.minor < 13 )
	 fprintf( stderr, "DRM version 1.%d too old to support HyperZ, "
			  "disabling.\n", sPriv->drm_version.minor );
      else
	 rmesa->using_hyperz = GL_TRUE;
   }
 
   if ( sPriv->drm_version.minor >= 15 )
      rmesa->texmicrotile = GL_TRUE;

   /* Init default driver functions then plug in our R200-specific functions
    * (the texture functions are especially important)
    */
   _mesa_init_driver_functions(&functions);
   r200InitDriverFuncs(&functions);
   r200InitIoctlFuncs(&functions);
   r200InitStateFuncs(&rmesa->radeon, &functions);
   r200InitTextureFuncs(&rmesa->radeon, &functions);
   r200InitShaderFuncs(&functions);
   radeonInitQueryObjFunctions(&functions);

   if (!radeonInitContext(&rmesa->radeon, &functions,
			  glVisual, driContextPriv,
			  sharedContextPrivate)) {
     FREE(rmesa);
     *error = __DRI_CTX_ERROR_NO_MEMORY;
     return GL_FALSE;
   }

   rmesa->radeon.swtcl.RenderIndex = ~0;
   rmesa->radeon.hw.all_dirty = 1;

   /* Set the maximum texture size small enough that we can guarentee that
    * all texture units can bind a maximal texture and have all of them in
    * texturable memory at once. Depending on the allow_large_textures driconf
    * setting allow larger textures.
    */

   ctx = rmesa->radeon.glCtx;
   ctx->Const.MaxTextureUnits = driQueryOptioni (&rmesa->radeon.optionCache,
						 "texture_units");
   ctx->Const.MaxTextureImageUnits = ctx->Const.MaxTextureUnits;
   ctx->Const.MaxTextureCoordUnits = ctx->Const.MaxTextureUnits;

   ctx->Const.MaxCombinedTextureImageUnits = ctx->Const.MaxTextureUnits;

   ctx->Const.StripTextureBorder = GL_TRUE;

   i = driQueryOptioni( &rmesa->radeon.optionCache, "allow_large_textures");

   /* FIXME: When no memory manager is available we should set this 
    * to some reasonable value based on texture memory pool size */
   ctx->Const.MaxTextureLevels = 12;
   ctx->Const.Max3DTextureLevels = 9;
   ctx->Const.MaxCubeTextureLevels = 12;
   ctx->Const.MaxTextureRectSize = 2048;
   ctx->Const.MaxRenderbufferSize = 2048;

   ctx->Const.MaxTextureMaxAnisotropy = 16.0;

   /* No wide AA points.
    */
   ctx->Const.MinPointSize = 1.0;
   ctx->Const.MinPointSizeAA = 1.0;
   ctx->Const.MaxPointSizeAA = 1.0;
   ctx->Const.PointSizeGranularity = 0.0625;
   ctx->Const.MaxPointSize = 2047.0;

   /* mesa initialization problem - _mesa_init_point was already called */
   ctx->Point.MaxSize = ctx->Const.MaxPointSize;

   ctx->Const.MinLineWidth = 1.0;
   ctx->Const.MinLineWidthAA = 1.0;
   ctx->Const.MaxLineWidth = 10.0;
   ctx->Const.MaxLineWidthAA = 10.0;
   ctx->Const.LineWidthGranularity = 0.0625;

   ctx->Const.VertexProgram.MaxNativeInstructions = R200_VSF_MAX_INST;
   ctx->Const.VertexProgram.MaxNativeAttribs = 12;
   ctx->Const.VertexProgram.MaxNativeTemps = R200_VSF_MAX_TEMPS;
   ctx->Const.VertexProgram.MaxNativeParameters = R200_VSF_MAX_PARAM;
   ctx->Const.VertexProgram.MaxNativeAddressRegs = 1;

   ctx->Const.MaxDrawBuffers = 1;
   ctx->Const.MaxColorAttachments = 1;

   _mesa_set_mvp_with_dp4( ctx, GL_TRUE );

   /* Initialize the software rasterizer and helper modules.
    */
   _swrast_CreateContext( ctx );
   _vbo_CreateContext( ctx );
   _tnl_CreateContext( ctx );
   _swsetup_CreateContext( ctx );
   _ae_create_context( ctx );

   /* Install the customized pipeline:
    */
   _tnl_destroy_pipeline( ctx );
   _tnl_install_pipeline( ctx, r200_pipeline );

   /* Try and keep materials and vertices separate:
    */
/*    _tnl_isolate_materials( ctx, GL_TRUE ); */


   /* Configure swrast and TNL to match hardware characteristics:
    */
   _swrast_allow_pixel_fog( ctx, GL_FALSE );
   _swrast_allow_vertex_fog( ctx, GL_TRUE );
   _tnl_allow_pixel_fog( ctx, GL_FALSE );
   _tnl_allow_vertex_fog( ctx, GL_TRUE );


   for ( i = 0 ; i < R200_MAX_TEXTURE_UNITS ; i++ ) {
      _math_matrix_ctr( &rmesa->TexGenMatrix[i] );
      _math_matrix_set_identity( &rmesa->TexGenMatrix[i] );
   }
   _math_matrix_ctr( &rmesa->tmpmat );
   _math_matrix_set_identity( &rmesa->tmpmat );

   ctx->Extensions.ARB_half_float_pixel = true;
   ctx->Extensions.ARB_occlusion_query = true;
   ctx->Extensions.ARB_texture_border_clamp = true;
   ctx->Extensions.ARB_texture_env_combine = true;
   ctx->Extensions.ARB_texture_env_dot3 = true;
   ctx->Extensions.ARB_texture_env_crossbar = true;
   ctx->Extensions.ARB_vertex_array_object = true;
   ctx->Extensions.EXT_blend_color = true;
   ctx->Extensions.EXT_blend_minmax = true;
   ctx->Extensions.EXT_fog_coord = true;
   ctx->Extensions.EXT_packed_depth_stencil = true;
   ctx->Extensions.EXT_secondary_color = true;
   ctx->Extensions.EXT_texture_env_dot3 = true;
   ctx->Extensions.EXT_texture_filter_anisotropic = true;
   ctx->Extensions.EXT_texture_mirror_clamp = true;
   ctx->Extensions.APPLE_vertex_array_object = true;
   ctx->Extensions.ATI_texture_env_combine3 = true;
   ctx->Extensions.ATI_texture_mirror_once = true;
   ctx->Extensions.MESA_pack_invert = true;
   ctx->Extensions.NV_blend_square = true;
   ctx->Extensions.NV_texture_rectangle = true;
#if FEATURE_OES_EGL_image
   ctx->Extensions.OES_EGL_image = true;
#endif

   ctx->Extensions.EXT_framebuffer_object = true;
   ctx->Extensions.ARB_occlusion_query = true;

   if (!(rmesa->radeon.radeonScreen->chip_flags & R200_CHIPSET_YCBCR_BROKEN)) {
     /* yuv textures don't work with some chips - R200 / rv280 okay so far
	others get the bit ordering right but don't actually do YUV-RGB conversion */
      ctx->Extensions.MESA_ycbcr_texture = true;
   }
   if (rmesa->radeon.glCtx->Mesa_DXTn) {
      ctx->Extensions.EXT_texture_compression_s3tc = true;
      ctx->Extensions.S3_s3tc = true;
   }
   else if (driQueryOptionb (&rmesa->radeon.optionCache, "force_s3tc_enable")) {
      ctx->Extensions.EXT_texture_compression_s3tc = true;
   }

   ctx->Extensions.ARB_texture_cube_map = true;

   ctx->Extensions.EXT_blend_equation_separate = true;
   ctx->Extensions.EXT_blend_func_separate = true;

   ctx->Extensions.ARB_vertex_program = true;
   ctx->Extensions.EXT_gpu_program_parameters = true;

   ctx->Extensions.NV_vertex_program =
      driQueryOptionb(&rmesa->radeon.optionCache, "nv_vertex_program");

   ctx->Extensions.ATI_fragment_shader = (ctx->Const.MaxTextureUnits == 6);

   ctx->Extensions.ARB_point_sprite = true;
   ctx->Extensions.EXT_point_parameters = true;

#if 0
   r200InitDriverFuncs( ctx );
   r200InitIoctlFuncs( ctx );
   r200InitStateFuncs( ctx );
   r200InitTextureFuncs( ctx );
#endif
   /* plug in a few more device driver functions */
   /* XXX these should really go right after _mesa_init_driver_functions() */
   radeon_fbo_init(&rmesa->radeon);
   radeonInitSpanFuncs( ctx );
   r200InitTnlFuncs( ctx );
   r200InitState( rmesa );
   r200InitSwtcl( ctx );

   rmesa->prefer_gart_client_texturing = 
      (getenv("R200_GART_CLIENT_TEXTURES") != 0);

   tcl_mode = driQueryOptioni(&rmesa->radeon.optionCache, "tcl_mode");
   if (driQueryOptionb(&rmesa->radeon.optionCache, "no_rast")) {
      fprintf(stderr, "disabling 3D acceleration\n");
      FALLBACK(rmesa, R200_FALLBACK_DISABLE, 1);
   }
   else if (tcl_mode == DRI_CONF_TCL_SW || getenv("R200_NO_TCL") ||
	    !(rmesa->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL)) {
      if (rmesa->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL) {
	 rmesa->radeon.radeonScreen->chip_flags &= ~RADEON_CHIPSET_TCL;
	 fprintf(stderr, "Disabling HW TCL support\n");
      }
      TCL_FALLBACK(rmesa->radeon.glCtx, R200_TCL_FALLBACK_TCL_DISABLE, 1);
   }

   _mesa_compute_version(ctx);
   if (ctx->Version < major_version * 10 + minor_version) {
      r200DestroyContext(driContextPriv);
      *error = __DRI_CTX_ERROR_BAD_VERSION;
      return GL_FALSE;
   }

   *error = __DRI_CTX_ERROR_SUCCESS;
   return GL_TRUE;
}
static EGLContext
fbCreateContext(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config, EGLContext share_list, const EGLint *attrib_list)
{
   GLcontext *ctx;
   _EGLConfig *conf;
   fbContext *c;
   _EGLDisplay *disp = _eglLookupDisplay(dpy);
   struct dd_function_table functions;
   GLvisual vis;
   int i;

   conf = _eglLookupConfig(drv, dpy, config);
   if (!conf) {
      _eglError(EGL_BAD_CONFIG, "eglCreateContext");
      return EGL_NO_CONTEXT;
   }

   for (i = 0; attrib_list && attrib_list[i] != EGL_NONE; i++) {
      switch (attrib_list[i]) {
         /* no attribs defined for now */
      default:
         _eglError(EGL_BAD_ATTRIBUTE, "eglCreateContext");
         return EGL_NO_CONTEXT;
      }
   }

   c = (fbContext *) calloc(1, sizeof(fbContext));
   if (!c)
      return EGL_NO_CONTEXT;

   _eglInitContext(&c->Base);
   c->Base.Display = disp;
   c->Base.Config = conf;
   c->Base.DrawSurface = EGL_NO_SURFACE;
   c->Base.ReadSurface = EGL_NO_SURFACE;

   /* generate handle and insert into hash table */
   _eglSaveContext(&c->Base);
   assert(c->Base.Handle);

   /* Init default driver functions then plug in our FBdev-specific functions
    */
   _mesa_init_driver_functions(&functions);
   init_core_functions(&functions);

   _eglConfigToContextModesRec(conf, &vis);

   ctx = c->glCtx = _mesa_create_context(&vis, NULL, &functions, (void *)c);
   if (!c->glCtx) {
      _mesa_free(c);
      return GL_FALSE;
   }

   /* Create module contexts */
   _swrast_CreateContext( ctx );
   _vbo_CreateContext( ctx );
   _tnl_CreateContext( ctx );
   _swsetup_CreateContext( ctx );
   _swsetup_Wakeup( ctx );


   /* use default TCL pipeline */
   {
      TNLcontext *tnl = TNL_CONTEXT(ctx);
      tnl->Driver.RunPipeline = _tnl_run_pipeline;
   }

   _mesa_enable_sw_extensions(ctx);

   return c->Base.Handle;
}
/* Create the device specific rendering context.
 */
GLboolean r200CreateContext( const __GLcontextModes *glVisual,
			     __DRIcontextPrivate *driContextPriv,
			     void *sharedContextPrivate)
{
   __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv;
   radeonScreenPtr screen = (radeonScreenPtr)(sPriv->private);
   struct dd_function_table functions;
   r200ContextPtr rmesa;
   GLcontext *ctx;
   int i;
   int tcl_mode;

   assert(glVisual);
   assert(driContextPriv);
   assert(screen);

   /* Allocate the R200 context */
   rmesa = (r200ContextPtr) CALLOC( sizeof(*rmesa) );
   if ( !rmesa )
      return GL_FALSE;

   r200_init_vtbl(&rmesa->radeon);
   /* init exp fog table data */
   r200InitStaticFogData();

   /* Parse configuration files.
    * Do this here so that initialMaxAnisotropy is set before we create
    * the default textures.
    */
   driParseConfigFiles (&rmesa->radeon.optionCache, &screen->optionCache,
			screen->driScreen->myNum, "r200");
   rmesa->radeon.initialMaxAnisotropy = driQueryOptionf(&rmesa->radeon.optionCache,
							"def_max_anisotropy");

   if ( sPriv->drm_version.major == 1
       && driQueryOptionb( &rmesa->radeon.optionCache, "hyperz" ) ) {
      if ( sPriv->drm_version.minor < 13 )
	 fprintf( stderr, "DRM version 1.%d too old to support HyperZ, "
			  "disabling.\n", sPriv->drm_version.minor );
      else
	 rmesa->using_hyperz = GL_TRUE;
   }
 
   if ( sPriv->drm_version.minor >= 15 )
      rmesa->texmicrotile = GL_TRUE;

   /* Init default driver functions then plug in our R200-specific functions
    * (the texture functions are especially important)
    */
   _mesa_init_driver_functions(&functions);
   r200InitDriverFuncs(&functions);
   r200InitIoctlFuncs(&functions);
   r200InitStateFuncs(&functions);
   r200InitTextureFuncs(&functions);
   r200InitShaderFuncs(&functions);
   radeonInitQueryObjFunctions(&functions);

   if (!radeonInitContext(&rmesa->radeon, &functions,
			  glVisual, driContextPriv,
			  sharedContextPrivate)) {
     FREE(rmesa);
     return GL_FALSE;
   }

   rmesa->radeon.swtcl.RenderIndex = ~0;
   rmesa->radeon.hw.all_dirty = 1;

   /* Set the maximum texture size small enough that we can guarentee that
    * all texture units can bind a maximal texture and have all of them in
    * texturable memory at once. Depending on the allow_large_textures driconf
    * setting allow larger textures.
    */

   ctx = rmesa->radeon.glCtx;
   ctx->Const.MaxTextureUnits = driQueryOptioni (&rmesa->radeon.optionCache,
						 "texture_units");
   ctx->Const.MaxTextureImageUnits = ctx->Const.MaxTextureUnits;
   ctx->Const.MaxTextureCoordUnits = ctx->Const.MaxTextureUnits;

   i = driQueryOptioni( &rmesa->radeon.optionCache, "allow_large_textures");

   /* FIXME: When no memory manager is available we should set this 
    * to some reasonable value based on texture memory pool size */
   ctx->Const.MaxTextureLevels = 12;
   ctx->Const.Max3DTextureLevels = 9;
   ctx->Const.MaxCubeTextureLevels = 12;
   ctx->Const.MaxTextureRectSize = 2048;

   ctx->Const.MaxTextureMaxAnisotropy = 16.0;

   /* No wide AA points.
    */
   ctx->Const.MinPointSize = 1.0;
   ctx->Const.MinPointSizeAA = 1.0;
   ctx->Const.MaxPointSizeAA = 1.0;
   ctx->Const.PointSizeGranularity = 0.0625;
   if (rmesa->radeon.radeonScreen->drmSupportsPointSprites)
      ctx->Const.MaxPointSize = 2047.0;
   else
      ctx->Const.MaxPointSize = 1.0;

   /* mesa initialization problem - _mesa_init_point was already called */
   ctx->Point.MaxSize = ctx->Const.MaxPointSize;

   ctx->Const.MinLineWidth = 1.0;
   ctx->Const.MinLineWidthAA = 1.0;
   ctx->Const.MaxLineWidth = 10.0;
   ctx->Const.MaxLineWidthAA = 10.0;
   ctx->Const.LineWidthGranularity = 0.0625;

   ctx->Const.VertexProgram.MaxNativeInstructions = R200_VSF_MAX_INST;
   ctx->Const.VertexProgram.MaxNativeAttribs = 12;
   ctx->Const.VertexProgram.MaxNativeTemps = R200_VSF_MAX_TEMPS;
   ctx->Const.VertexProgram.MaxNativeParameters = R200_VSF_MAX_PARAM;
   ctx->Const.VertexProgram.MaxNativeAddressRegs = 1;

   ctx->Const.MaxDrawBuffers = 1;

   _mesa_set_mvp_with_dp4( ctx, GL_TRUE );

   /* Initialize the software rasterizer and helper modules.
    */
   _swrast_CreateContext( ctx );
   _vbo_CreateContext( ctx );
   _tnl_CreateContext( ctx );
   _swsetup_CreateContext( ctx );
   _ae_create_context( ctx );

   /* Install the customized pipeline:
    */
   _tnl_destroy_pipeline( ctx );
   _tnl_install_pipeline( ctx, r200_pipeline );

   /* Try and keep materials and vertices separate:
    */
/*    _tnl_isolate_materials( ctx, GL_TRUE ); */


   /* Configure swrast and TNL to match hardware characteristics:
    */
   _swrast_allow_pixel_fog( ctx, GL_FALSE );
   _swrast_allow_vertex_fog( ctx, GL_TRUE );
   _tnl_allow_pixel_fog( ctx, GL_FALSE );
   _tnl_allow_vertex_fog( ctx, GL_TRUE );


   for ( i = 0 ; i < R200_MAX_TEXTURE_UNITS ; i++ ) {
      _math_matrix_ctr( &rmesa->TexGenMatrix[i] );
      _math_matrix_set_identity( &rmesa->TexGenMatrix[i] );
   }
   _math_matrix_ctr( &rmesa->tmpmat );
   _math_matrix_set_identity( &rmesa->tmpmat );

   driInitExtensions( ctx, card_extensions, GL_TRUE );

   if (rmesa->radeon.radeonScreen->kernel_mm)
     driInitExtensions(ctx, mm_extensions, GL_FALSE);
   if (!(rmesa->radeon.radeonScreen->chip_flags & R200_CHIPSET_YCBCR_BROKEN)) {
     /* yuv textures don't work with some chips - R200 / rv280 okay so far
	others get the bit ordering right but don't actually do YUV-RGB conversion */
      _mesa_enable_extension( ctx, "GL_MESA_ycbcr_texture" );
   }
   if (rmesa->radeon.glCtx->Mesa_DXTn) {
      _mesa_enable_extension( ctx, "GL_EXT_texture_compression_s3tc" );
      _mesa_enable_extension( ctx, "GL_S3_s3tc" );
   }
   else if (driQueryOptionb (&rmesa->radeon.optionCache, "force_s3tc_enable")) {
      _mesa_enable_extension( ctx, "GL_EXT_texture_compression_s3tc" );
   }

   if (rmesa->radeon.radeonScreen->drmSupportsCubeMapsR200)
      _mesa_enable_extension( ctx, "GL_ARB_texture_cube_map" );
   if (rmesa->radeon.radeonScreen->drmSupportsBlendColor) {
       driInitExtensions( ctx, blend_extensions, GL_FALSE );
   }
   if(rmesa->radeon.radeonScreen->drmSupportsVertexProgram)
      driInitSingleExtension( ctx, ARB_vp_extension );
   if(driQueryOptionb(&rmesa->radeon.optionCache, "nv_vertex_program"))
      driInitSingleExtension( ctx, NV_vp_extension );

   if ((ctx->Const.MaxTextureUnits == 6) && rmesa->radeon.radeonScreen->drmSupportsFragShader)
      driInitSingleExtension( ctx, ATI_fs_extension );
   if (rmesa->radeon.radeonScreen->drmSupportsPointSprites)
      driInitExtensions( ctx, point_extensions, GL_FALSE );

   if (!rmesa->radeon.radeonScreen->kernel_mm)
      _mesa_disable_extension(ctx, "GL_ARB_occlusion_query");
#if 0
   r200InitDriverFuncs( ctx );
   r200InitIoctlFuncs( ctx );
   r200InitStateFuncs( ctx );
   r200InitTextureFuncs( ctx );
#endif
   /* plug in a few more device driver functions */
   /* XXX these should really go right after _mesa_init_driver_functions() */
   radeon_fbo_init(&rmesa->radeon);
   radeonInitSpanFuncs( ctx );
   r200InitPixelFuncs( ctx );
   r200InitTnlFuncs( ctx );
   r200InitState( rmesa );
   r200InitSwtcl( ctx );

   rmesa->prefer_gart_client_texturing = 
      (getenv("R200_GART_CLIENT_TEXTURES") != 0);

   tcl_mode = driQueryOptioni(&rmesa->radeon.optionCache, "tcl_mode");
   if (driQueryOptionb(&rmesa->radeon.optionCache, "no_rast")) {
      fprintf(stderr, "disabling 3D acceleration\n");
      FALLBACK(rmesa, R200_FALLBACK_DISABLE, 1);
   }
   else if (tcl_mode == DRI_CONF_TCL_SW || getenv("R200_NO_TCL") ||
	    !(rmesa->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL)) {
      if (rmesa->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL) {
	 rmesa->radeon.radeonScreen->chip_flags &= ~RADEON_CHIPSET_TCL;
	 fprintf(stderr, "Disabling HW TCL support\n");
      }
      TCL_FALLBACK(rmesa->radeon.glCtx, R200_TCL_FALLBACK_TCL_DISABLE, 1);
   }

   return GL_TRUE;
}
GLboolean
intelInitContext(struct intel_context *intel,
                 const __GLcontextModes * mesaVis,
                 __DRIcontext * driContextPriv,
                 void *sharedContextPrivate,
                 struct dd_function_table *functions)
{
   GLcontext *ctx = &intel->ctx;
   GLcontext *shareCtx = (GLcontext *) sharedContextPrivate;
   __DRIscreen *sPriv = driContextPriv->driScreenPriv;
   struct intel_screen *intelScreen = sPriv->private;
   int bo_reuse_mode;

   /* we can't do anything without a connection to the device */
   if (intelScreen->bufmgr == NULL)
      return GL_FALSE;

   if (!_mesa_initialize_context(&intel->ctx, mesaVis, shareCtx,
                                 functions, (void *) intel)) {
      printf("%s: failed to init mesa context\n", __FUNCTION__);
      return GL_FALSE;
   }

   driContextPriv->driverPrivate = intel;
   intel->intelScreen = intelScreen;
   intel->driScreen = sPriv;
   intel->driContext = driContextPriv;
   intel->driFd = sPriv->fd;

   intel->has_xrgb_textures = GL_TRUE;
   if (IS_GEN6(intel->intelScreen->deviceID)) {
      intel->gen = 6;
      intel->needs_ff_sync = GL_TRUE;
      intel->has_luminance_srgb = GL_TRUE;
   } else if (IS_GEN5(intel->intelScreen->deviceID)) {
      intel->gen = 5;
      intel->needs_ff_sync = GL_TRUE;
      intel->has_luminance_srgb = GL_TRUE;
   } else if (IS_965(intel->intelScreen->deviceID)) {
      intel->gen = 4;
      if (IS_G4X(intel->intelScreen->deviceID)) {
	  intel->has_luminance_srgb = GL_TRUE;
	  intel->is_g4x = GL_TRUE;
      }
   } else if (IS_9XX(intel->intelScreen->deviceID)) {
      intel->gen = 3;
      if (IS_945(intel->intelScreen->deviceID)) {
	 intel->is_945 = GL_TRUE;
      }
   } else {
      intel->gen = 2;
      if (intel->intelScreen->deviceID == PCI_CHIP_I830_M ||
	  intel->intelScreen->deviceID == PCI_CHIP_845_G) {
	 intel->has_xrgb_textures = GL_FALSE;
      }
   }

   driParseConfigFiles(&intel->optionCache, &intelScreen->optionCache,
                       intel->driScreen->myNum,
		       (intel->gen >= 4) ? "i965" : "i915");
   if (intelScreen->deviceID == PCI_CHIP_I865_G)
      intel->maxBatchSize = 4096;
   else
      intel->maxBatchSize = BATCH_SZ;

   intel->bufmgr = intelScreen->bufmgr;

   bo_reuse_mode = driQueryOptioni(&intel->optionCache, "bo_reuse");
   switch (bo_reuse_mode) {
   case DRI_CONF_BO_REUSE_DISABLED:
      break;
   case DRI_CONF_BO_REUSE_ALL:
      intel_bufmgr_gem_enable_reuse(intel->bufmgr);
      break;
   }

   /* This doesn't yet catch all non-conformant rendering, but it's a
    * start.
    */
   if (getenv("INTEL_STRICT_CONFORMANCE")) {
      unsigned int value = atoi(getenv("INTEL_STRICT_CONFORMANCE"));
      if (value > 0) {
         intel->conformance_mode = value;
      }
      else {
         intel->conformance_mode = 1;
      }
   }

   if (intel->conformance_mode > 0) {
      ctx->Const.MinLineWidth = 1.0;
      ctx->Const.MinLineWidthAA = 1.0;
      ctx->Const.MaxLineWidth = 1.0;
      ctx->Const.MaxLineWidthAA = 1.0;
      ctx->Const.LineWidthGranularity = 1.0;
   }
   else {
      ctx->Const.MinLineWidth = 1.0;
      ctx->Const.MinLineWidthAA = 1.0;
      ctx->Const.MaxLineWidth = 5.0;
      ctx->Const.MaxLineWidthAA = 5.0;
      ctx->Const.LineWidthGranularity = 0.5;
   }

   ctx->Const.MinPointSize = 1.0;
   ctx->Const.MinPointSizeAA = 1.0;
   ctx->Const.MaxPointSize = 255.0;
   ctx->Const.MaxPointSizeAA = 3.0;
   ctx->Const.PointSizeGranularity = 1.0;

   /* reinitialize the context point state.
    * It depend on constants in __GLcontextRec::Const
    */
   _mesa_init_point(ctx);

   meta_init_metaops(ctx, &intel->meta);
   ctx->Const.MaxColorAttachments = 4;  /* XXX FBO: review this */
   if (intel->gen >= 4) {
      if (MAX_WIDTH > 8192)
	 ctx->Const.MaxRenderbufferSize = 8192;
   } else {
      if (MAX_WIDTH > 2048)
	 ctx->Const.MaxRenderbufferSize = 2048;
   }

   /* Initialize the software rasterizer and helper modules. */
   _swrast_CreateContext(ctx);
   _vbo_CreateContext(ctx);
   _tnl_CreateContext(ctx);
   _swsetup_CreateContext(ctx);
 
   /* Configure swrast to match hardware characteristics: */
   _swrast_allow_pixel_fog(ctx, GL_FALSE);
   _swrast_allow_vertex_fog(ctx, GL_TRUE);

   _mesa_meta_init(ctx);

   intel->hw_stencil = mesaVis->stencilBits && mesaVis->depthBits == 24;
   intel->hw_stipple = 1;

   /* XXX FBO: this doesn't seem to be used anywhere */
   switch (mesaVis->depthBits) {
   case 0:                     /* what to do in this case? */
   case 16:
      intel->polygon_offset_scale = 1.0;
      break;
   case 24:
      intel->polygon_offset_scale = 2.0;     /* req'd to pass glean */
      break;
   default:
      assert(0);
      break;
   }

   if (intel->gen >= 4)
      intel->polygon_offset_scale /= 0xffff;

   intel->RenderIndex = ~0;

   intelInitExtensions(ctx);

   INTEL_DEBUG = driParseDebugString(getenv("INTEL_DEBUG"), debug_control);
   if (INTEL_DEBUG & DEBUG_BUFMGR)
      dri_bufmgr_set_debug(intel->bufmgr, GL_TRUE);

   intel->batch = intel_batchbuffer_alloc(intel);

   intel_fbo_init(intel);

   if (intel->ctx.Mesa_DXTn) {
      _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc");
      _mesa_enable_extension(ctx, "GL_S3_s3tc");
   }
   else if (driQueryOptionb(&intel->optionCache, "force_s3tc_enable")) {
      _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc");
   }
   intel->use_texture_tiling = driQueryOptionb(&intel->optionCache,
					       "texture_tiling");
   intel->use_early_z = driQueryOptionb(&intel->optionCache, "early_z");

   intel->prim.primitive = ~0;

   /* Force all software fallbacks */
   if (driQueryOptionb(&intel->optionCache, "no_rast")) {
      fprintf(stderr, "disabling 3D rasterization\n");
      intel->no_rast = 1;
   }

   if (driQueryOptionb(&intel->optionCache, "always_flush_batch")) {
      fprintf(stderr, "flushing batchbuffer before/after each draw call\n");
      intel->always_flush_batch = 1;
   }

   if (driQueryOptionb(&intel->optionCache, "always_flush_cache")) {
      fprintf(stderr, "flushing GPU caches before/after each draw call\n");
      intel->always_flush_cache = 1;
   }

   /* Disable all hardware rendering (skip emitting batches and fences/waits
    * to the kernel)
    */
   intel->no_hw = getenv("INTEL_NO_HW") != NULL;

   return GL_TRUE;
}
bool
intelInitContext(struct intel_context *intel,
                 int api,
                 unsigned major_version,
                 unsigned minor_version,
                 uint32_t flags,
                 const struct gl_config * mesaVis,
                 __DRIcontext * driContextPriv,
                 void *sharedContextPrivate,
                 struct dd_function_table *functions,
                 unsigned *dri_ctx_error)
{
   struct gl_context *ctx = &intel->ctx;
   struct gl_context *shareCtx = (struct gl_context *) sharedContextPrivate;
   __DRIscreen *sPriv = driContextPriv->driScreenPriv;
   struct intel_screen *intelScreen = sPriv->driverPrivate;
   int bo_reuse_mode;

   /* Can't rely on invalidate events, fall back to glViewport hack */
   if (!driContextPriv->driScreenPriv->dri2.useInvalidate)
      functions->Viewport = intel_noninvalidate_viewport;
   else
      functions->Viewport = intel_viewport;

   intel->intelScreen = intelScreen;

   if (!_mesa_initialize_context(&intel->ctx, api, mesaVis, shareCtx,
                                 functions)) {
      *dri_ctx_error = __DRI_CTX_ERROR_NO_MEMORY;
      printf("%s: failed to init mesa context\n", __func__);
      return false;
   }

   driContextSetFlags(&intel->ctx, flags);

   driContextPriv->driverPrivate = intel;
   intel->driContext = driContextPriv;

   intel->gen = intelScreen->gen;

   const int devID = intelScreen->deviceID;

   intel->is_945 = IS_945(devID);

   intel->has_swizzling = intel->intelScreen->hw_has_swizzling;

   memset(&ctx->TextureFormatSupported,
	  0, sizeof(ctx->TextureFormatSupported));

   driParseConfigFiles(&intel->optionCache, &intelScreen->optionCache,
                       sPriv->myNum, "i915");
   intel->maxBatchSize = 4096;

   /* Estimate the size of the mappable aperture into the GTT.  There's an
    * ioctl to get the whole GTT size, but not one to get the mappable subset.
    * It turns out it's basically always 256MB, though some ancient hardware
    * was smaller.
    */
   uint32_t gtt_size = 256 * 1024 * 1024;
   if (intel->gen == 2)
      gtt_size = 128 * 1024 * 1024;

   /* We don't want to map two objects such that a memcpy between them would
    * just fault one mapping in and then the other over and over forever.  So
    * we would need to divide the GTT size by 2.  Additionally, some GTT is
    * taken up by things like the framebuffer and the ringbuffer and such, so
    * be more conservative.
    */
   intel->max_gtt_map_object_size = gtt_size / 4;

   intel->bufmgr = intelScreen->bufmgr;

   bo_reuse_mode = driQueryOptioni(&intel->optionCache, "bo_reuse");
   switch (bo_reuse_mode) {
   case DRI_CONF_BO_REUSE_DISABLED:
      break;
   case DRI_CONF_BO_REUSE_ALL:
      intel_bufmgr_gem_enable_reuse(intel->bufmgr);
      break;
   }

   ctx->Const.MinLineWidth = 1.0;
   ctx->Const.MinLineWidthAA = 1.0;
   ctx->Const.MaxLineWidth = 7.0;
   ctx->Const.MaxLineWidthAA = 7.0;
   ctx->Const.LineWidthGranularity = 0.5;

   ctx->Const.MinPointSize = 1.0;
   ctx->Const.MinPointSizeAA = 1.0;
   ctx->Const.MaxPointSize = 255.0;
   ctx->Const.MaxPointSizeAA = 3.0;
   ctx->Const.PointSizeGranularity = 1.0;

   ctx->Const.StripTextureBorder = GL_TRUE;

   /* reinitialize the context point state.
    * It depend on constants in __struct gl_contextRec::Const
    */
   _mesa_init_point(ctx);

   ctx->Const.MaxRenderbufferSize = 2048;

   _swrast_CreateContext(ctx);
   _vbo_CreateContext(ctx);
   if (ctx->swrast_context) {
      _tnl_CreateContext(ctx);
      _swsetup_CreateContext(ctx);

      /* Configure swrast to match hardware characteristics: */
      _swrast_allow_pixel_fog(ctx, false);
      _swrast_allow_vertex_fog(ctx, true);
   }

   _mesa_meta_init(ctx);

   intel->hw_stipple = 1;

   intel->RenderIndex = ~0;

   intelInitExtensions(ctx);

   INTEL_DEBUG = parse_debug_string(getenv("INTEL_DEBUG"), debug_control);
   if (INTEL_DEBUG & DEBUG_BUFMGR)
      dri_bufmgr_set_debug(intel->bufmgr, true);
   if (INTEL_DEBUG & DEBUG_PERF)
      intel->perf_debug = true;

   if (INTEL_DEBUG & DEBUG_AUB)
      drm_intel_bufmgr_gem_set_aub_dump(intel->bufmgr, true);

   intel_batchbuffer_init(intel);

   intel_fbo_init(intel);

   intel->use_early_z = driQueryOptionb(&intel->optionCache, "early_z");

   intel->prim.primitive = ~0;

   /* Force all software fallbacks */
   if (driQueryOptionb(&intel->optionCache, "no_rast")) {
      fprintf(stderr, "disabling 3D rasterization\n");
      intel->no_rast = 1;
   }

   if (driQueryOptionb(&intel->optionCache, "always_flush_batch")) {
      fprintf(stderr, "flushing batchbuffer before/after each draw call\n");
      intel->always_flush_batch = 1;
   }

   if (driQueryOptionb(&intel->optionCache, "always_flush_cache")) {
      fprintf(stderr, "flushing GPU caches before/after each draw call\n");
      intel->always_flush_cache = 1;
   }

   if (driQueryOptionb(&intel->optionCache, "disable_throttling")) {
      fprintf(stderr, "disabling flush throttling\n");
      intel->disable_throttling = 1;
   }

   return true;
}
Exemple #29
0
static GLboolean
dri_create_context(gl_api api,
		   const struct gl_config * visual,
		   __DRIcontext * cPriv, void *sharedContextPrivate)
{
    struct dri_context *ctx = NULL;
    struct dri_context *share = (struct dri_context *)sharedContextPrivate;
    struct gl_context *mesaCtx = NULL;
    struct gl_context *sharedCtx = NULL;
    struct dd_function_table functions;

    TRACE;

    ctx = CALLOC_STRUCT(dri_context);
    if (ctx == NULL)
	goto context_fail;

    cPriv->driverPrivate = ctx;
    ctx->cPriv = cPriv;

    /* build table of device driver functions */
    _mesa_init_driver_functions(&functions);
    swrast_init_driver_functions(&functions);

    if (share) {
	sharedCtx = &share->Base;
    }

    mesaCtx = &ctx->Base;

    /* basic context setup */
    if (!_mesa_initialize_context(mesaCtx, api, visual, sharedCtx, &functions, (void *) cPriv)) {
	goto context_fail;
    }

    /* do bounds checking to prevent segfaults and server crashes! */
    mesaCtx->Const.CheckArrayBounds = GL_TRUE;

    /* create module contexts */
    _swrast_CreateContext( mesaCtx );
    _vbo_CreateContext( mesaCtx );
    _tnl_CreateContext( mesaCtx );
    _swsetup_CreateContext( mesaCtx );
    _swsetup_Wakeup( mesaCtx );

    /* use default TCL pipeline */
    {
       TNLcontext *tnl = TNL_CONTEXT(mesaCtx);
       tnl->Driver.RunPipeline = _tnl_run_pipeline;
    }

    _mesa_meta_init(mesaCtx);
    _mesa_enable_sw_extensions(mesaCtx);

    switch (api) {
    case API_OPENGL:
        _mesa_enable_1_3_extensions(mesaCtx);
        _mesa_enable_1_4_extensions(mesaCtx);
        _mesa_enable_1_5_extensions(mesaCtx);
        _mesa_enable_2_0_extensions(mesaCtx);
        _mesa_enable_2_1_extensions(mesaCtx);

        driInitExtensions( mesaCtx, NULL, GL_FALSE );
        break;
    case API_OPENGLES:
        _mesa_enable_1_3_extensions(mesaCtx);
        _mesa_enable_1_4_extensions(mesaCtx);
        _mesa_enable_1_5_extensions(mesaCtx);

        break;
    case API_OPENGLES2:
        InitExtensionsES2( mesaCtx);
        break;
    }

    return GL_TRUE;

context_fail:

    FREE(ctx);

    return GL_FALSE;
}
GLboolean
brwCreateContext(gl_api api,
	         const struct gl_config *mesaVis,
		 __DRIcontext *driContextPriv,
                 unsigned major_version,
                 unsigned minor_version,
                 uint32_t flags,
                 bool notify_reset,
                 unsigned *dri_ctx_error,
	         void *sharedContextPrivate)
{
   __DRIscreen *sPriv = driContextPriv->driScreenPriv;
   struct gl_context *shareCtx = (struct gl_context *) sharedContextPrivate;
   struct intel_screen *screen = sPriv->driverPrivate;
   const struct brw_device_info *devinfo = screen->devinfo;
   struct dd_function_table functions;

   /* Only allow the __DRI_CTX_FLAG_ROBUST_BUFFER_ACCESS flag if the kernel
    * provides us with context reset notifications.
    */
   uint32_t allowed_flags = __DRI_CTX_FLAG_DEBUG
      | __DRI_CTX_FLAG_FORWARD_COMPATIBLE;

   if (screen->has_context_reset_notification)
      allowed_flags |= __DRI_CTX_FLAG_ROBUST_BUFFER_ACCESS;

   if (flags & ~allowed_flags) {
      *dri_ctx_error = __DRI_CTX_ERROR_UNKNOWN_FLAG;
      return false;
   }

   struct brw_context *brw = rzalloc(NULL, struct brw_context);
   if (!brw) {
      fprintf(stderr, "%s: failed to alloc context\n", __FUNCTION__);
      *dri_ctx_error = __DRI_CTX_ERROR_NO_MEMORY;
      return false;
   }

   driContextPriv->driverPrivate = brw;
   brw->driContext = driContextPriv;
   brw->intelScreen = screen;
   brw->bufmgr = screen->bufmgr;

   brw->gen = devinfo->gen;
   brw->gt = devinfo->gt;
   brw->is_g4x = devinfo->is_g4x;
   brw->is_baytrail = devinfo->is_baytrail;
   brw->is_haswell = devinfo->is_haswell;
   brw->has_llc = devinfo->has_llc;
   brw->has_hiz = devinfo->has_hiz_and_separate_stencil;
   brw->has_separate_stencil = devinfo->has_hiz_and_separate_stencil;
   brw->has_pln = devinfo->has_pln;
   brw->has_compr4 = devinfo->has_compr4;
   brw->has_surface_tile_offset = devinfo->has_surface_tile_offset;
   brw->has_negative_rhw_bug = devinfo->has_negative_rhw_bug;
   brw->needs_unlit_centroid_workaround =
      devinfo->needs_unlit_centroid_workaround;

   brw->must_use_separate_stencil = screen->hw_must_use_separate_stencil;
   brw->has_swizzling = screen->hw_has_swizzling;

   brw->vs.base.stage = MESA_SHADER_VERTEX;
   brw->gs.base.stage = MESA_SHADER_GEOMETRY;
   brw->wm.base.stage = MESA_SHADER_FRAGMENT;
   if (brw->gen >= 8) {
      gen8_init_vtable_surface_functions(brw);
      gen7_init_vtable_sampler_functions(brw);
      brw->vtbl.emit_depth_stencil_hiz = gen8_emit_depth_stencil_hiz;
   } else if (brw->gen >= 7) {
      gen7_init_vtable_surface_functions(brw);
      gen7_init_vtable_sampler_functions(brw);
      brw->vtbl.emit_depth_stencil_hiz = gen7_emit_depth_stencil_hiz;
   } else {
      gen4_init_vtable_surface_functions(brw);
      gen4_init_vtable_sampler_functions(brw);
      brw->vtbl.emit_depth_stencil_hiz = brw_emit_depth_stencil_hiz;
   }

   brw_init_driver_functions(brw, &functions);

   if (notify_reset)
      functions.GetGraphicsResetStatus = brw_get_graphics_reset_status;

   struct gl_context *ctx = &brw->ctx;

   if (!_mesa_initialize_context(ctx, api, mesaVis, shareCtx, &functions)) {
      *dri_ctx_error = __DRI_CTX_ERROR_NO_MEMORY;
      fprintf(stderr, "%s: failed to init mesa context\n", __FUNCTION__);
      intelDestroyContext(driContextPriv);
      return false;
   }

   driContextSetFlags(ctx, flags);

   /* Initialize the software rasterizer and helper modules.
    *
    * As of GL 3.1 core, the gen4+ driver doesn't need the swrast context for
    * software fallbacks (which we have to support on legacy GL to do weird
    * glDrawPixels(), glBitmap(), and other functions).
    */
   if (api != API_OPENGL_CORE && api != API_OPENGLES2) {
      _swrast_CreateContext(ctx);
   }

   _vbo_CreateContext(ctx);
   if (ctx->swrast_context) {
      _tnl_CreateContext(ctx);
      TNL_CONTEXT(ctx)->Driver.RunPipeline = _tnl_run_pipeline;
      _swsetup_CreateContext(ctx);

      /* Configure swrast to match hardware characteristics: */
      _swrast_allow_pixel_fog(ctx, false);
      _swrast_allow_vertex_fog(ctx, true);
   }

   _mesa_meta_init(ctx);

   brw_process_driconf_options(brw);
   brw_process_intel_debug_variable(brw);
   brw_initialize_context_constants(brw);

   ctx->Const.ResetStrategy = notify_reset
      ? GL_LOSE_CONTEXT_ON_RESET_ARB : GL_NO_RESET_NOTIFICATION_ARB;

   /* Reinitialize the context point state.  It depends on ctx->Const values. */
   _mesa_init_point(ctx);

   intel_fbo_init(brw);

   intel_batchbuffer_init(brw);

   if (brw->gen >= 6) {
      /* Create a new hardware context.  Using a hardware context means that
       * our GPU state will be saved/restored on context switch, allowing us
       * to assume that the GPU is in the same state we left it in.
       *
       * This is required for transform feedback buffer offsets, query objects,
       * and also allows us to reduce how much state we have to emit.
       */
      brw->hw_ctx = drm_intel_gem_context_create(brw->bufmgr);

      if (!brw->hw_ctx) {
         fprintf(stderr, "Gen6+ requires Kernel 3.6 or later.\n");
         intelDestroyContext(driContextPriv);
         return false;
      }
   }

   brw_init_state(brw);

   intelInitExtensions(ctx);

   brw_init_surface_formats(brw);

   brw->max_vs_threads = devinfo->max_vs_threads;
   brw->max_gs_threads = devinfo->max_gs_threads;
   brw->max_wm_threads = devinfo->max_wm_threads;
   brw->urb.size = devinfo->urb.size;
   brw->urb.min_vs_entries = devinfo->urb.min_vs_entries;
   brw->urb.max_vs_entries = devinfo->urb.max_vs_entries;
   brw->urb.max_gs_entries = devinfo->urb.max_gs_entries;

   /* Estimate the size of the mappable aperture into the GTT.  There's an
    * ioctl to get the whole GTT size, but not one to get the mappable subset.
    * It turns out it's basically always 256MB, though some ancient hardware
    * was smaller.
    */
   uint32_t gtt_size = 256 * 1024 * 1024;

   /* We don't want to map two objects such that a memcpy between them would
    * just fault one mapping in and then the other over and over forever.  So
    * we would need to divide the GTT size by 2.  Additionally, some GTT is
    * taken up by things like the framebuffer and the ringbuffer and such, so
    * be more conservative.
    */
   brw->max_gtt_map_object_size = gtt_size / 4;

   if (brw->gen == 6)
      brw->urb.gen6_gs_previously_active = false;

   brw->prim_restart.in_progress = false;
   brw->prim_restart.enable_cut_index = false;
   brw->gs.enabled = false;

   if (brw->gen < 6) {
      brw->curbe.last_buf = calloc(1, 4096);
      brw->curbe.next_buf = calloc(1, 4096);
   }

   ctx->VertexProgram._MaintainTnlProgram = true;
   ctx->FragmentProgram._MaintainTexEnvProgram = true;

   brw_draw_init( brw );

   if ((flags & __DRI_CTX_FLAG_DEBUG) != 0) {
      /* Turn on some extra GL_ARB_debug_output generation. */
      brw->perf_debug = true;
   }

   if ((flags & __DRI_CTX_FLAG_ROBUST_BUFFER_ACCESS) != 0)
      ctx->Const.ContextFlags |= GL_CONTEXT_FLAG_ROBUST_ACCESS_BIT_ARB;

   if (INTEL_DEBUG & DEBUG_SHADER_TIME)
      brw_init_shader_time(brw);

   _mesa_compute_version(ctx);

   _mesa_initialize_dispatch_tables(ctx);
   _mesa_initialize_vbo_vtxfmt(ctx);

   if (ctx->Extensions.AMD_performance_monitor) {
      brw_init_performance_monitors(brw);
   }

   vbo_use_buffer_objects(ctx);
   vbo_always_unmap_buffers(ctx);

   return true;
}