commit 7198ebc48c7c05d73d0e6ea1783e6c259f110775
author Geoff Lang <geofflang@chromium.org> Thu Nov 22 14:36:06 2018 -0500
committer Commit Bot <commit-bot@chromium.org> Mon Nov 26 17:51:16 2018 +0000
tree da6349eac4bb62589030eda841712fe6d6f99059
parent 617103ed0efb5b869e9065ed8f629f2868eefd7b

GL: Work around Qualcomm sRGB ReadPixels driver bug.

When calling glReadPixels on unsized sRGB textures, the data returned is
not linearized.  Using sized sRGB formats works around this problem.

Fix SRGBTextureTest assuming that unsized SRGB formats work in ES3.

BUG=angleproject:2977

Change-Id: I413c888ca0c3564ecdc364f3ea693e75ed4f8d6d
Reviewed-on: https://chromium-review.googlesource.com/c/1343138
Reviewed-by: Tobin Ehlis <tobine@google.com>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>

src/libANGLE/Context.cpp

diff --git a/src/libANGLE/Context.cpp b/src/libANGLE/Context.cpp
index 3e7acb9..2dba883 100644
--- a/src/libANGLE/Context.cpp
+++ b/src/libANGLE/Context.cpp
@@ -3231,6 +3231,12 @@
         supportedExtensions.maxViews              = 1u;
         supportedExtensions.copyTexture3d         = false;
         supportedExtensions.textureMultisample    = false;
+
+        // Don't expose GL_EXT_texture_sRGB_decode without sRGB texture support
+        if (!supportedExtensions.sRGB)
+        {
+            supportedExtensions.textureSRGBDecode = false;
+        }
     }
 
     if (getClientVersion() < ES_3_1)