ES31: Implement FramebufferTextureEXT on OpenGL back-ends
This patch intends to implement FramebufferTextureEXT on OpenGL
back-ends.
1. Support layered framebuffer attachments.
2. Add new framebuffer completeness rules on layered framebuffer
attachments.
3. Support FRAMEBUFFER_ATTACHMENT_LAYERED_EXT as a valid <pname>
parameter of GetFramebufferAttachmentParameteriv.
Note that for an entire level of a cube map:
1. It has no TextureTarget because TEXTURE_CUBE is not a valid
target for TexImage*D.
2. It corresponds to 6 ImageDescs (that represents its faces) in
class Texture, so when the cube map is cube complete, we return
the ImageDesc of its first face, meanwhile we do not allow
querying ImageDesc if it is not cube complete.
BUG=angleproject:1941
TEST=angle_end2end_tests
dEQP-GLES31.functional.geometry_shading.query.framebuffer_attachment_layers
dEQP-GLES31.functional.geometry_shading.query.framebuffer_incomplete_layer_targets
dEQP-GLES31.functional.geometry_shading.layered.*
dEQP-GLES31.functional.geometry_shading.instanced.invocation_per_layer_*
dEQP-GLES31.functional.geometry_shading.instanced.multiple_layers_per_invocation_*
Change-Id: I44393b513ec8f1a682fd1c47d3eaa6f3b3fae877
Reviewed-on: https://chromium-review.googlesource.com/1075811
Commit-Queue: Jiawei Shao <jiawei.shao@intel.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
diff --git a/src/libANGLE/queryutils.cpp b/src/libANGLE/queryutils.cpp
index b489bb3..0719b80 100644
--- a/src/libANGLE/queryutils.cpp
+++ b/src/libANGLE/queryutils.cpp
@@ -952,6 +952,10 @@
}
break;
+ case GL_FRAMEBUFFER_ATTACHMENT_LAYERED_EXT:
+ *params = attachmentObject->isLayered();
+ break;
+
default:
UNREACHABLE();
break;