Add command buffer function glScheduleCALayerFilterEffectsCHROMIUM.

gpu/GLES2/extensions/CHROMIUM/CHROMIUM_schedule_ca_layer.txt

 Name
 
     CHROMIUM_schedule_ca_layer
 
 Name Strings
 
     GL_CHROMIUM_schedule_ca_layer
 
 Version
 
@@ skipping 17 matching lines @@
     None
 
 New Tokens
 
     Accepted by the <edge_aa_mask> parameter of glScheduleCALayerCHROMIUM:
     GL_CA_LAYER_EDGE_LEFT_CHROMIUM                    0x01
     GL_CA_LAYER_EDGE_RIGHT_CHROMIUM                   0x02
     GL_CA_LAYER_EDGE_BOTTOM_CHROMIUM                  0x04
     GL_CA_LAYER_EDGE_TOP_CHROMIUM                     0x08
 
+    Accepted by the <filter_effects> parameter of
+    glScheduleCALayerFilterEffectsCHROMIUM:
+    struct GLCALayerFilterEffect {
+      GLint type;

[erikchen, 2016/07/23 00:26:48]

I could add 10 new parameters, and add conversions between them and
ui::CARendererLayerParams::FilterEffectType. This seems like a lot of plumbing
for no benefit.

[piman, 2016/07/23 00:39:58]

SG. Can you list what are the valid values here?

[erikchen, 2016/07/23 14:18:15]

Done.

+      GLfloat amount;
+      GLint drop_shadow_offset_x;
+      GLint drop_shadow_offset_y;
+      GLuint drop_shadow_color;
+    };
+
 New Procedures and Functions
 
     The command
 
         glScheduleCALayerSharedStateCHROMIUM(GLfloat opacity,
                                              GLboolean is_clipped,
                                              const GLfloat* clip_rect,
                                              GLint sorting_context_id,
                                              const GLfloat* transform);
 
@@ skipping 32 matching lines @@
     32-bit ARGB value.
     <edge_aa_mask> is a bitfield specifying which of the edges of the layer are
     to have anti-aliasing.
     <bounds_rect> contains four values indicating the x, y, width, and height of
     the layer in pixels.
     <filter> will be used for both minification and magnification filtering. The
     only valid values are GL_LINEAR and GL_NEAREST.
 
     The command
 
+        glScheduleCALayerFilterEffectsCHROMIUM(
+            GLsizei count,
+            GLCALayerFilterEffect* filter_effects)
+
+    applies the <filter_effects> to the next CALayer to be scheduled. A
+    consecutive call to glScheduleCALayerFilterEffectsCHROMIUM overrides the
+    previously saved <filter_effects>. A call to glSwapBuffers clears any saved
+    <filter_effects>
+
        glScheduleCALayerInUseQueryCHROMIUM(GLsizei count, GLuint* textures);
 
     schedules a query at the time of the next call to swap buffers. If the given
     texture is backed by an IOSurface, then the query checks to see whether the
     IOSurface is in use by the Window Server. Otherwise, the query returns
     false. All the results will be returned with the swap ACK in
     GpuCommandBufferMsg_SwapBuffersCompleted_Params. Clients should not destroy
     any textures while they are being queried, as the swap ACK will use the
     original texture id to identify the queried textures.
 
 Errors
 
     GL_INVALID_OPERATION is generated when glScheduleCALayerCHROMIUM is called
     without a prior call to glScheduleCALayerSharedStateCHROMIUM.
 
 New State
 
     None.
 
 Revision History
 
     6/13/2016    Add glScheduleCALayerInUseQueryCHROMIUM.
     4/12/2016    Add a parameter to support minification and magnification
                  filtering.
     12/16/2015   Add clipping and edge anti-aliasing.
     11/7/2015    Initial checkin