wined3d: Use the FBO cache in swapchain_blit().

dlls/wined3d/context.c

@@ -841,11 +841,6 @@ static void context_destroy_gl_resources(struct wined3d_context *context)
 
     if (context->valid)
     {
-        if (context->src_fbo)
-        {
-            TRACE("Destroy src FBO %d\n", context->src_fbo);
-            context_destroy_fbo(context, &context->src_fbo);
-        }
         if (context->dst_fbo)
         {
             TRACE("Destroy dst FBO %d\n", context->dst_fbo);

dlls/wined3d/swapchain.c

@@ -117,9 +117,8 @@ static void swapchain_blit(IWineD3DSwapChainImpl *This, struct wined3d_context *
     if (gl_info->fbo_ops.glBlitFramebuffer && is_identity_fixup(backbuffer->resource.format_desc->color_fixup))
     {
         ENTER_GL();
-        context_bind_fbo(context, GL_READ_FRAMEBUFFER, &context->src_fbo);
-        context_attach_surface_fbo(context, GL_READ_FRAMEBUFFER, 0, backbuffer);
-        context_attach_depth_stencil_fbo(context, GL_READ_FRAMEBUFFER, NULL, FALSE);
+        context_apply_fbo_state_blit(context, GL_READ_FRAMEBUFFER, backbuffer, NULL);
+        glReadBuffer(GL_COLOR_ATTACHMENT0);
 
         context_bind_fbo(context, GL_DRAW_FRAMEBUFFER, NULL);
         context_set_draw_buffer(context, GL_BACK);

dlls/wined3d/wined3d_private.h

@@ -1087,7 +1087,6 @@ struct wined3d_context
     struct list             fbo_list;
     struct list             fbo_destroy_list;
     struct fbo_entry        *current_fbo;
-    GLuint                  src_fbo;
     GLuint                  dst_fbo;
     GLuint                  fbo_read_binding;
     GLuint                  fbo_draw_binding;