commit 390208b523ba477f8d6aa6c2b08459169a94c1ae
author Minmin Gong <mgong@microsoft.com> Tue Feb 28 18:03:06 2017 -0800
committer Commit Bot <commit-bot@chromium.org> Fri Mar 03 06:06:11 2017 +0000
tree 9037056b030b2ed97289cf620f9d02fc324ebe15
parent 461d9a3060e315706c74d1203ed945a600a1a241

Implements ETC lossy decode for ETC2 formats.

This is the 2nd payload of GL_ANGLE_lossy_etc_decode feature. In this change,
RGB8, SRGB8, RGB8A1, and SRGB8A1 formats in ETC2 family can be converted
to BC1.

BUG=angleproject:1285

Change-Id: I96fe2f07c62716a31d37f20a202b6cabbb4ebbd2
Reviewed-on: https://chromium-review.googlesource.com/447846
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>

src/libANGLE/validationES.cpp

diff --git a/src/libANGLE/validationES.cpp b/src/libANGLE/validationES.cpp
index 2a911a7..20413f6 100644
--- a/src/libANGLE/validationES.cpp
+++ b/src/libANGLE/validationES.cpp
@@ -1714,6 +1714,12 @@
         case GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE:
         case GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE:
         case GL_ETC1_RGB8_LOSSY_DECODE_ANGLE:
+        case GL_COMPRESSED_RGB8_LOSSY_DECODE_ETC2_ANGLE:
+        case GL_COMPRESSED_SRGB8_LOSSY_DECODE_ETC2_ANGLE:
+        case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_LOSSY_DECODE_ETC2_ANGLE:
+        case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_LOSSY_DECODE_ETC2_ANGLE:
+        case GL_COMPRESSED_RGBA8_LOSSY_DECODE_ETC2_EAC_ANGLE:
+        case GL_COMPRESSED_SRGB8_ALPHA8_LOSSY_DECODE_ETC2_EAC_ANGLE:
             return true;
 
         default: