intel_context.c

mesa-6.5-minigui源码

   intel->bm = bm_intel_Attach( intel );
#if 0
   bmInitPool(intel->bm,
              intel->intelScreen->tex.offset, /* low offset */
              intel->intelScreen->tex.map, /* low virtual */
              intel->intelScreen->tex.size,
	      DRM_MM_TT);
#endif

   /* XXX FBO: these have to go away!
    * FBO regions should be setup when creating the drawable. */

   /* These are still static, but create regions for them.  
    */
   intel->front_region = 
      intel_region_create_static(intel,
				 DRM_MM_TT,
				 intelScreen->front.offset,
				 intelScreen->front.map,
				 intelScreen->cpp,
				 intelScreen->front.pitch,
				 intelScreen->height);


   intel->back_region = 
      intel_region_create_static(intel,
				 DRM_MM_TT,
				 intelScreen->back.offset,
				 intelScreen->back.map,
				 intelScreen->cpp,
				 intelScreen->back.pitch,
				 intelScreen->height);

   /* Still assuming front.cpp == depth.cpp
    */
   intel->depth_region = 
      intel_region_create_static(intel,
				 DRM_MM_TT,
				 intelScreen->depth.offset,
				 intelScreen->depth.map,
				 intelScreen->cpp,
				 intelScreen->depth.pitch,
				 intelScreen->height);
   
   intel->batch = intel_batchbuffer_alloc( intel );
   intel_bufferobj_init( 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 (&intelScreen->optionCache, "force_s3tc_enable")) {
     _mesa_enable_extension( ctx, "GL_EXT_texture_compression_s3tc" );
   }

<<<<<<< intel_context.c
/*    driInitTextureObjects( ctx, & intel->swapped, */
/* 			  DRI_TEXMGR_DO_TEXTURE_1D | */
/* 			  DRI_TEXMGR_DO_TEXTURE_2D |  */
/* 			  DRI_TEXMGR_DO_TEXTURE_RECT ); */


   intelInitBatchBuffer(&intel->ctx);
   intel->prim.flush = intel_emit_invarient_state;
=======
>>>>>>> 1.20.2.25
   intel->prim.primitive = ~0;


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

   if (getenv("INTEL_NO_RAST")) {
      fprintf(stderr, "disabling 3D rasterization\n");
      FALLBACK(intel, INTEL_FALLBACK_USER, 1); 
   }

   return GL_TRUE;
}

void intelDestroyContext(__DRIcontextPrivate *driContextPriv)
{
   struct intel_context *intel = (struct intel_context *) driContextPriv->driverPrivate;

   assert(intel); /* should never be null */
   if (intel) {
      GLboolean   release_texture_heaps;


      intel->vtbl.destroy( intel );

      release_texture_heaps = (intel->ctx.Shared->RefCount == 1);
      _swsetup_DestroyContext (&intel->ctx);
      _tnl_DestroyContext (&intel->ctx);
      _ac_DestroyContext (&intel->ctx);

      _swrast_DestroyContext (&intel->ctx);
      intel->Fallback = 0;	/* don't call _swrast_Flush later */

      intel_batchbuffer_free(intel->batch);
      

      if ( release_texture_heaps ) {
         /* This share group is about to go away, free our private
          * texture object data.
          */
	 fprintf(stderr, "do something to free texture heaps\n");
      }

      /* free the Mesa context */
      _mesa_free_context_data(&intel->ctx);
   }
}

GLboolean intelUnbindContext(__DRIcontextPrivate *driContextPriv)
{
   return GL_TRUE;
}

GLboolean intelMakeCurrent(__DRIcontextPrivate *driContextPriv,
			  __DRIdrawablePrivate *driDrawPriv,
			  __DRIdrawablePrivate *driReadPriv)
{

   if (driContextPriv) {
      struct intel_context *intel = (struct intel_context *) driContextPriv->driverPrivate;
      GLframebuffer *drawFb = (GLframebuffer *) driDrawPriv->driverPrivate;
      GLframebuffer *readFb = (GLframebuffer *) driReadPriv->driverPrivate;

      if ( intel->driDrawable != driDrawPriv ) {
	 /* Shouldn't the readbuffer be stored also? */
	 driDrawableInitVBlank( driDrawPriv, intel->vblank_flags );

	 intel->driDrawable = driDrawPriv;
	 intelWindowMoved( intel );
      }

      /* XXX FBO temporary fix-ups! */
      /* if the renderbuffers don't have regions, init them from the context */
      {
         struct intel_renderbuffer *irbFront
            = intel_get_renderbuffer(drawFb, BUFFER_FRONT_LEFT);
         struct intel_renderbuffer *irbBack
            = intel_get_renderbuffer(drawFb, BUFFER_BACK_LEFT);
         struct intel_renderbuffer *irbDepth
            = intel_get_renderbuffer(drawFb, BUFFER_DEPTH);
         struct intel_renderbuffer *irbStencil
            = intel_get_renderbuffer(drawFb, BUFFER_STENCIL);

         if (irbFront && !irbFront->region) {
            intel_region_reference(&irbFront->region, intel->front_region);
         }
         if (irbBack && !irbBack->region) {
            intel_region_reference(&irbBack->region, intel->back_region);
         }
         if (irbDepth && !irbDepth->region) {
            intel_region_reference(&irbDepth->region, intel->depth_region);
         }
         if (irbStencil && !irbStencil->region) {
            intel_region_reference(&irbStencil->region, intel->depth_region);
         }
      }

      _mesa_make_current(&intel->ctx, drawFb, readFb);

      intel_draw_buffer(&intel->ctx, drawFb);
   }
   else {
      _mesa_make_current(NULL, NULL, NULL);
   }

   return GL_TRUE;
}

<<<<<<< intel_context.c
/**
 * Use the information in the sarea to update the screen parameters
 * related to screen rotation.
 */
static void
intelUpdateScreenRotation(intelContextPtr intel,
                          __DRIscreenPrivate *sPriv,
                          drmI830Sarea *sarea)
{
   intelScreenPrivate *intelScreen = (intelScreenPrivate *)sPriv->private;
   intelRegion *colorBuf;

   intelUnmapScreenRegions(intelScreen);

   intelUpdateScreenFromSAREA(intelScreen, sarea);

   /* update the current hw offsets for the color and depth buffers */
   if (intel->ctx.DrawBuffer->_ColorDrawBufferMask[0] == BUFFER_BIT_BACK_LEFT)
      colorBuf = &intelScreen->back;
   else
      colorBuf = &intelScreen->front;
   intel->vtbl.update_color_z_regions(intel, colorBuf, &intelScreen->depth);

   if (!intelMapScreenRegions(sPriv)) {
      fprintf(stderr, "ERROR Remapping screen regions!!!\n");
   }
}

void intelGetLock( intelContextPtr intel, GLuint flags )
=======
void intelGetLock( struct intel_context *intel, GLuint flags )
>>>>>>> 1.20.2.25
{
   __DRIdrawablePrivate *dPriv = intel->driDrawable;
   __DRIscreenPrivate *sPriv = intel->driScreen;
   intelScreenPrivate *intelScreen = (intelScreenPrivate *)sPriv->private;
   drmI830Sarea * sarea = intel->sarea;
<<<<<<< intel_context.c
   unsigned   i;
=======
   int me = intel->hHWContext;
>>>>>>> 1.20.2.25

   drmGetLock(intel->driFd, intel->hHWContext, flags);

   /* If the window moved, may need to set a new cliprect now.
    *
    * NOTE: This releases and regains the hw lock, so all state
    * checking must be done *after* this call:
    */
   if (dPriv)
      DRI_VALIDATE_DRAWABLE_INFO(sPriv, dPriv);

<<<<<<< intel_context.c
   if (dPriv && intel->lastStamp != dPriv->lastStamp) {
      intelWindowMoved( intel );
      intel->lastStamp = dPriv->lastStamp;
   }

   /* If we lost context, need to dump all registers to hardware.
    * Note that we don't care about 2d contexts, even if they perform
    * accelerated commands, so the DRI locking in the X server is even
    * more broken than usual.
=======
   /* Lost context?
>>>>>>> 1.20.2.25
    */
<<<<<<< intel_context.c

   if (sarea->width != intelScreen->width ||
       sarea->height != intelScreen->height ||
       sarea->rotation != intelScreen->current_rotation) {
      intelUpdateScreenRotation(intel, sPriv, sarea);

      /* This will drop the outstanding batchbuffer on the floor */
      intel->batch.ptr -= (intel->batch.size - intel->batch.space);
      intel->batch.space = intel->batch.size;
      /* lose all primitives */
      intel->prim.primitive = ~0;
      intel->prim.start_ptr = 0;
      intel->prim.flush = 0;
      intel->vtbl.lost_hardware( intel ); 

      intel->lastStamp = 0; /* force window update */

      /* Release batch buffer
       */
      intelDestroyBatchBuffer(&intel->ctx);
      intelInitBatchBuffer(&intel->ctx);
      intel->prim.flush = intel_emit_invarient_state;

      /* Still need to reset the global LRU?
       */
      intel_driReinitTextureHeap( intel->texture_heaps[0], intel->intelScreen->tex.size );
=======
   if (sarea->ctxOwner != me) {
      intel->perf_boxes |= I830_BOX_LOST_CONTEXT;
      sarea->ctxOwner = me;
>>>>>>> 1.20.2.25
   }

   /* Drawable changed?
    */
<<<<<<< intel_context.c
   for ( i = 0 ; i < intel->nr_heaps ; i++ ) {
      DRI_AGE_TEXTURES( intel->texture_heaps[ i ] );
   }
}

=======
   if (dPriv && intel->lastStamp != dPriv->lastStamp) {
      intelWindowMoved( intel );
      intel->lastStamp = dPriv->lastStamp;
   }
}
>>>>>>> 1.20.2.25

<<<<<<< intel_context.c
void intelSwapBuffers( __DRIdrawablePrivate *dPriv )
{
   if (dPriv->driContextPriv && dPriv->driContextPriv->driverPrivate) {
      intelContextPtr intel;
      GLcontext *ctx;
      intel = (intelContextPtr) dPriv->driContextPriv->driverPrivate;
      ctx = &intel->ctx;
      if (ctx->Visual.doubleBufferMode) {
         intelScreenPrivate *screen = intel->intelScreen;
	 _mesa_notifySwapBuffers( ctx );  /* flush pending rendering comands */
	 if ( 0 /*intel->doPageFlip*/ ) { /* doPageFlip is never set !!! */
	    intelPageFlip( dPriv );
	 } else {
	    intelCopyBuffer( dPriv );
	 }
         if (screen->current_rotation != 0) {
            intelRotateWindow(intel, dPriv, BUFFER_BIT_FRONT_LEFT);
         }
      }
   } else {
      /* XXX this shouldn't be an error but we can't handle it for now */
      fprintf(stderr, "%s: drawable has no context!\n", __FUNCTION__);
   }
}


void intelInitState( GLcontext *ctx )
{
   /* Mesa should do this for us:
    */
   ctx->Driver.AlphaFunc( ctx, 
			  ctx->Color.AlphaFunc,
			  ctx->Color.AlphaRef);

   ctx->Driver.BlendColor( ctx,
			   ctx->Color.BlendColor );

   ctx->Driver.BlendEquationSeparate( ctx, 
				      ctx->Color.BlendEquationRGB,
				      ctx->Color.BlendEquationA);

   ctx->Driver.BlendFuncSeparate( ctx,
				  ctx->Color.BlendSrcRGB,
				  ctx->Color.BlendDstRGB,
				  ctx->Color.BlendSrcA,
				  ctx->Color.BlendDstA);

   ctx->Driver.ColorMask( ctx, 
			  ctx->Color.ColorMask[RCOMP],
			  ctx->Color.ColorMask[GCOMP],
			  ctx->Color.ColorMask[BCOMP],
			  ctx->Color.ColorMask[ACOMP]);

   ctx->Driver.CullFace( ctx, ctx->Polygon.CullFaceMode );
   ctx->Driver.DepthFunc( ctx, ctx->Depth.Func );
   ctx->Driver.DepthMask( ctx, ctx->Depth.Mask );

   ctx->Driver.Enable( ctx, GL_ALPHA_TEST, ctx->Color.AlphaEnabled );
   ctx->Driver.Enable( ctx, GL_BLEND, ctx->Color.BlendEnabled );
   ctx->Driver.Enable( ctx, GL_COLOR_LOGIC_OP, ctx->Color.ColorLogicOpEnabled );
   ctx->Driver.Enable( ctx, GL_COLOR_SUM, ctx->Fog.ColorSumEnabled );
   ctx->Driver.Enable( ctx, GL_CULL_FACE, ctx->Polygon.CullFlag );
   ctx->Driver.Enable( ctx, GL_DEPTH_TEST, ctx->Depth.Test );
   ctx->Driver.Enable( ctx, GL_DITHER, ctx->Color.DitherFlag );
   ctx->Driver.Enable( ctx, GL_FOG, ctx->Fog.Enabled );
   ctx->Driver.Enable( ctx, GL_LIGHTING, ctx->Light.Enabled );
   ctx->Driver.Enable( ctx, GL_LINE_SMOOTH, ctx->Line.SmoothFlag );
   ctx->Driver.Enable( ctx, GL_POLYGON_STIPPLE, ctx->Polygon.StippleFlag );
   ctx->Driver.Enable( ctx, GL_SCISSOR_TEST, ctx->Scissor.Enabled );
   ctx->Driver.Enable( ctx, GL_STENCIL_TEST, ctx->Stencil.Enabled );
   ctx->Driver.Enable( ctx, GL_TEXTURE_1D, GL_FALSE );
   ctx->Driver.Enable( ctx, GL_TEXTURE_2D, GL_FALSE );
   ctx->Driver.Enable( ctx, GL_TEXTURE_RECTANGLE_NV, GL_FALSE );
   ctx->Driver.Enable( ctx, GL_TEXTURE_3D, GL_FALSE );
   ctx->Driver.Enable( ctx, GL_TEXTURE_CUBE_MAP, GL_FALSE );

   ctx->Driver.Fogfv( ctx, GL_FOG_COLOR, ctx->Fog.Color );
   ctx->Driver.Fogfv( ctx, GL_FOG_MODE, 0 );
   ctx->Driver.Fogfv( ctx, GL_FOG_DENSITY, &ctx->Fog.Density );
   ctx->Driver.Fogfv( ctx, GL_FOG_START, &ctx->Fog.Start );
   ctx->Driver.Fogfv( ctx, GL_FOG_END, &ctx->Fog.End );

   ctx->Driver.FrontFace( ctx, ctx->Polygon.FrontFace );

   {
      GLfloat f = (GLfloat)ctx->Light.Model.ColorControl;
      ctx->Driver.LightModelfv( ctx, GL_LIGHT_MODEL_COLOR_CONTROL, &f );
   }
=======
>>>>>>> 1.20.2.25

<<<<<<< intel_context.c
   ctx->Driver.LineWidth( ctx, ctx->Line.Width );
   ctx->Driver.LogicOpcode( ctx, ctx->Color.LogicOp );
   ctx->Driver.PointSize( ctx, ctx->Point.Size );
   ctx->Driver.PolygonStipple( ctx, (const GLubyte *)ctx->PolygonStipple );
   ctx->Driver.Scissor( ctx, ctx->Scissor.X, ctx->Scissor.Y,
			ctx->Scissor.Width, ctx->Scissor.Height );
   ctx->Driver.ShadeModel( ctx, ctx->Light.ShadeModel );
   ctx->Driver.StencilFuncSeparate( ctx, GL_FRONT,
                                    ctx->Stencil.Function[0],
                                    ctx->Stencil.Ref[0],
                                    ctx->Stencil.ValueMask[0] );
   ctx->Driver.StencilFuncSeparate( ctx, GL_BACK,
                                    ctx->Stencil.Function[1],
                                    ctx->Stencil.Ref[1],
                                    ctx->Stencil.ValueMask[1] );
   ctx->Driver.StencilMaskSeparate( ctx, GL_FRONT, ctx->Stencil.WriteMask[0] );
   ctx->Driver.StencilMaskSeparate( ctx, GL_BACK, ctx->Stencil.WriteMask[1] );
   ctx->Driver.StencilOpSeparate( ctx, GL_FRONT,
                                  ctx->Stencil.FailFunc[0],
                                  ctx->Stencil.ZFailFunc[0],
                                  ctx->Stencil.ZPassFunc[0]);
   ctx->Driver.StencilOpSeparate( ctx, GL_BACK,
                                  ctx->Stencil.FailFunc[1],
                                  ctx->Stencil.ZFailFunc[1],
                                  ctx->Stencil.ZPassFunc[1]);


   ctx->Driver.DrawBuffer( ctx, ctx->Color.DrawBuffer[0] );
}


=======
>>>>>>> 1.20.2.25