Vulkan: Disable EXT_texture_sRGB_R8

Due to a dEQP bug, EXT_texture_sRGB_R8 cannot be exposed before
EXT_texture_sRGB_decode is available. This change disables
EXT_texture_sRGB_R8 on the vulkan backend.

Bug: angleproject:3609
Test: dEQP-GLES31.functional.srgb_texture_decode.skip_decode.sr8.*
Change-Id: I261c80986484e489f6903eb54ac6865433050bfa
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2161985
Reviewed-by: Jamie Madill <[email protected]>
Reviewed-by: Cody Northrop <[email protected]>
Commit-Queue: Mohan Maiya <[email protected]>

Author: Brandon Schade

src/libANGLE/renderer/vulkan/vk_caps_utils.cpp

@@ -48,6 +48,11 @@ void RendererVk::ensureCapsInitialized() const
 
     mNativeExtensions.setTextureExtensionSupport(mNativeTextureCaps);
 
+    // TODO: http://anglebug.com/3609
+    // Due to a dEQP bug, this extension cannot be exposed until EXT_texture_sRGB_decode is
+    // implemented
+    mNativeExtensions.sRGBR8EXT = false;
+
     // To ensure that ETC2/EAC formats are enabled only on hardware that supports them natively,
     // this flag is not set by the function above and must be set explicitly. It exposes
     // ANGLE_compressed_texture_etc extension string.

src/tests/deqp_support/deqp_gles31_test_expectations.txt

@@ -271,4 +271,3 @@
 4371 VULKAN ANDROID : dEQP-GLES31.functional.shaders.implicit_conversions.es31.arithmetic.input_before_literal.add.int_to_vec3_vertex = FAIL
 4371 VULKAN ANDROID : dEQP-GLES31.functional.shaders.implicit_conversions.es31.arithmetic.input_before_literal.add.int_to_uvec3_vertex = FAIL
 4371 SWIFTSHADER : dEQP-GLES31.functional.shaders.implicit_conversions.* = FAIL
-3609 VULKAN : dEQP-GLES31.functional.srgb_texture_decode.skip_decode.sr8.* = FAIL