Avoid pixel GPU readback in saveLayerWithPickup

src/gpu/gl/GrGLDefines.h

Index: src/gpu/gl/GrGLDefines.h
diff --git a/src/gpu/gl/GrGLDefines.h b/src/gpu/gl/GrGLDefines.h
index f0b56ae989bbc22471ccf3cf27165bbd4b302e7c..8374e5cdaf9f36923705efc731c8ae9ad8322436 100644
--- a/src/gpu/gl/GrGLDefines.h
+++ b/src/gpu/gl/GrGLDefines.h
@@ -820,6 +820,7 @@
 #define GR_GL_STENCIL                        0x1802
 
 #define GR_GL_NONE                           0
+#define GR_GL_FRAMEBUFFER_DEFAULT            0x8218

[bsalomon, 2015/12/15 20:03:47]

what's this for?

[robertphillips, 2015/12/15 20:13:24]

Initially I was experimenting with what information I could get out of the
default frame buffer. This is what what
glGetNamedFramebufferAttachmentParameteriv returns as the
GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE when the default frame buffer is queried.
It isn't crucial to the current CL but I thought it might be nice to have around
(we already have the 3 other possible values).

 
 #define GR_GL_FRAMEBUFFER_COMPLETE                      0x8CD5
 #define GR_GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT         0x8CD6