Vulkan: Enable viewport Y flipping

src/libANGLE/renderer/vulkan/RendererVk.cpp

@@ -653,10 +653,9 @@ void RendererVk::initFeatures()
     // Use OpenGL line rasterization rules by default.
     mFeatures.basicGLLineRasterization = true;
 
-    // For now, set this manually to true to enable viewport flipping. A couple of features are not
-    // working well like copyTexImage, copySubTexImage, blit, and probably some more. Until
-    // everything is fixed, we will keep the viewport flipping feature disabled.
-    mFeatures.flipViewportY = false;
+    // TODO(lucferron): Currently disabled on Intel only since many tests are failing and need
+    // investigation. http://anglebug.com/2728
+    mFeatures.flipViewportY = !IsIntel(mPhysicalDeviceProperties.vendorID);
 }
 
 void RendererVk::ensureCapsInitialized() const

src/tests/gl_tests/BlitFramebufferANGLETest.cpp

@@ -574,6 +574,9 @@ TEST_P(BlitFramebufferANGLETest, ReverseOversizedBlit)
 // blit from user-created FBO to system framebuffer, with depth buffer.
 TEST_P(BlitFramebufferANGLETest, BlitWithDepthUserToDefault)
 {
+    // TODO(lucferron): Diagnose and fix http://anglebug.com/2729
+    ANGLE_SKIP_TEST_IF(IsAMD() && IsVulkan());
+
     ANGLE_SKIP_TEST_IF(!extensionEnabled("GL_ANGLE_framebuffer_blit"));
 
     glBindFramebuffer(GL_FRAMEBUFFER, mUserFBO);
@@ -627,6 +630,9 @@ TEST_P(BlitFramebufferANGLETest, BlitWithDepthUserToDefault)
 // blit from system FBO to user-created framebuffer, with depth buffer.
 TEST_P(BlitFramebufferANGLETest, BlitWithDepthDefaultToUser)
 {
+    // TODO(lucferron): Diagnose and fix http://anglebug.com/2729
+    ANGLE_SKIP_TEST_IF(IsAMD() && IsVulkan());
+
     ANGLE_SKIP_TEST_IF(!extensionEnabled("GL_ANGLE_framebuffer_blit"));
 
     glBindFramebuffer(GL_FRAMEBUFFER, mOriginalFBO);
@@ -821,6 +827,9 @@ TEST_P(BlitFramebufferANGLETest, BlitStencil)
     // TODO(lucferron): Diagnose and fix http://anglebug.com/2693
     ANGLE_SKIP_TEST_IF(IsIntel() && IsLinux() && IsVulkan());
 
+    // TODO(lucferron): Diagnose and fix http://anglebug.com/2729
+    ANGLE_SKIP_TEST_IF(IsAMD() && IsVulkan());
+
     glBindFramebuffer(GL_FRAMEBUFFER, mUserFBO);
 
     glClearColor(0.0, 1.0, 0.0, 1.0);

src/tests/gl_tests/TextureTest.cpp

@@ -1557,6 +1557,10 @@ TEST_P(Texture2DTest, CopySubImageFloat_RGBA_RGB)
 
 TEST_P(Texture2DTest, CopySubImageFloat_RGBA_RGBA)
 {
+    // TODO(lucferron): This test fails only on linux and intel.
+    // http://anglebug.com/2726
+    ANGLE_SKIP_TEST_IF(IsVulkan() && IsLinux() && IsIntel());
+
     // Ignore SDK layers messages on D3D11 FL 9.3 (http://anglebug.com/1284)
     ANGLE_SKIP_TEST_IF(IsD3D11_FL93());