Commit a8802477752fbb0cea55787a50da597014975068
2018-05-28T11:17:47
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>