gpu: support immutable texture on Linux Mesa driver and GLES3.

gpu/command_buffer/service/feature_info_unittest.cc

Index: gpu/command_buffer/service/feature_info_unittest.cc
diff --git a/gpu/command_buffer/service/feature_info_unittest.cc b/gpu/command_buffer/service/feature_info_unittest.cc
index 3b32f7a5bae6f7061a34080b5b78604ebcb57564..64eebd9aa2ad2968d02656f5b122e7cbbe82adef 100644
--- a/gpu/command_buffer/service/feature_info_unittest.cc
+++ b/gpu/command_buffer/service/feature_info_unittest.cc
@@ -429,7 +429,105 @@ TEST_F(FeatureInfoTest, InitializeEXT_read_format_bgra) {
       GL_BGRA_EXT));
   EXPECT_TRUE(info_->validators()->read_pixel_format.IsValid(
       GL_BGRA_EXT));
-  EXPECT_FALSE(info_->validators()->render_buffer_format.IsValid(
+  EXPECT_FALSE(info_->validators()->render_buffer_format.IsValid(GL_BGRA8_EXT));
+}
+
+TEST_F(FeatureInfoTest, InitializeEXT_texture_storage) {
+  SetupInitExpectations("GL_EXT_texture_storage");
+  EXPECT_THAT(info_->extensions(), HasSubstr("GL_EXT_texture_storage"));
+  EXPECT_TRUE(info_->validators()->texture_parameter.IsValid(
+      GL_TEXTURE_IMMUTABLE_FORMAT_EXT));
+  EXPECT_FALSE(info_->validators()->texture_internal_format_storage.IsValid(
+      GL_BGRA8_EXT));
+  EXPECT_FALSE(info_->validators()->texture_internal_format_storage.IsValid(
+      GL_RGBA32F_EXT));
+  EXPECT_FALSE(info_->validators()->texture_internal_format_storage.IsValid(
+      GL_RGB32F_EXT));
+  EXPECT_FALSE(info_->validators()->texture_internal_format_storage.IsValid(
+      GL_ALPHA32F_EXT));
+  EXPECT_FALSE(info_->validators()->texture_internal_format_storage.IsValid(
+      GL_LUMINANCE32F_EXT));
+  EXPECT_FALSE(info_->validators()->texture_internal_format_storage.IsValid(
+      GL_LUMINANCE_ALPHA32F_EXT));
+  EXPECT_FALSE(info_->validators()->texture_internal_format_storage.IsValid(
+      GL_RGBA16F_EXT));
+  EXPECT_FALSE(info_->validators()->texture_internal_format_storage.IsValid(
+      GL_RGB16F_EXT));
+  EXPECT_FALSE(info_->validators()->texture_internal_format_storage.IsValid(
+      GL_ALPHA16F_EXT));
+  EXPECT_FALSE(info_->validators()->texture_internal_format_storage.IsValid(
+      GL_LUMINANCE16F_EXT));
+  EXPECT_FALSE(info_->validators()->texture_internal_format_storage.IsValid(
+      GL_LUMINANCE_ALPHA16F_EXT));
+}
+
+TEST_F(FeatureInfoTest, InitializeARB_texture_storage) {
+  SetupInitExpectations("GL_ARB_texture_storage");
+  EXPECT_THAT(info_->extensions(), HasSubstr("GL_EXT_texture_storage"));
+  EXPECT_TRUE(info_->validators()->texture_parameter.IsValid(
+      GL_TEXTURE_IMMUTABLE_FORMAT_EXT));
+}
+
+TEST_F(FeatureInfoTest, InitializeEXT_texture_storage_BGRA) {
+  SetupInitExpectations(
+      "GL_EXT_texture_storage GL_EXT_texture_format_BGRA8888");
+  EXPECT_THAT(info_->extensions(), HasSubstr("GL_EXT_texture_storage"));
+  EXPECT_THAT(info_->extensions(), HasSubstr("GL_EXT_texture_format_BGRA8888"));
+  EXPECT_TRUE(info_->validators()->texture_internal_format_storage.IsValid(
+      GL_BGRA8_EXT));
+}
+
+TEST_F(FeatureInfoTest, InitializeEXT_texture_storage_float) {
+  SetupInitExpectations("GL_EXT_texture_storage GL_OES_texture_float");
+  EXPECT_THAT(info_->extensions(), HasSubstr("GL_EXT_texture_storage"));
+  EXPECT_THAT(info_->extensions(), HasSubstr("GL_OES_texture_float"));
+  EXPECT_TRUE(info_->validators()->texture_internal_format_storage.IsValid(
+      GL_RGBA32F_EXT));
+  EXPECT_TRUE(info_->validators()->texture_internal_format_storage.IsValid(
+      GL_RGB32F_EXT));
+  EXPECT_TRUE(info_->validators()->texture_internal_format_storage.IsValid(
+      GL_ALPHA32F_EXT));
+  EXPECT_TRUE(info_->validators()->texture_internal_format_storage.IsValid(
+      GL_LUMINANCE32F_EXT));
+  EXPECT_TRUE(info_->validators()->texture_internal_format_storage.IsValid(
+      GL_LUMINANCE_ALPHA32F_EXT));
+}
+
+TEST_F(FeatureInfoTest, InitializeEXT_texture_storage_half_float) {
+  SetupInitExpectations("GL_EXT_texture_storage GL_OES_texture_half_float");
+  EXPECT_THAT(info_->extensions(), HasSubstr("GL_EXT_texture_storage"));
+  EXPECT_THAT(info_->extensions(), HasSubstr("GL_OES_texture_half_float"));
+  EXPECT_TRUE(info_->validators()->texture_internal_format_storage.IsValid(
+      GL_RGBA16F_EXT));
+  EXPECT_TRUE(info_->validators()->texture_internal_format_storage.IsValid(
+      GL_RGB16F_EXT));
+  EXPECT_TRUE(info_->validators()->texture_internal_format_storage.IsValid(
+      GL_ALPHA16F_EXT));
+  EXPECT_TRUE(info_->validators()->texture_internal_format_storage.IsValid(
+      GL_LUMINANCE16F_EXT));
+  EXPECT_TRUE(info_->validators()->texture_internal_format_storage.IsValid(
+      GL_LUMINANCE_ALPHA16F_EXT));
+}
+
+TEST_F(FeatureInfoTest, InitializeEXT_texture_format_BGRA8888GLES3) {
+  SetupInitExpectationsWithGLVersion(
+      "GL_EXT_texture_format_BGRA8888", "", "OpenGL ES 3.0");
+  EXPECT_FALSE(info_->feature_flags().ext_texture_storage);
+  EXPECT_THAT(info_->extensions(), Not(HasSubstr("GL_EXT_texture_storage")));
+  EXPECT_FALSE(info_->validators()->texture_parameter.IsValid(
+      GL_TEXTURE_IMMUTABLE_FORMAT_EXT));
+  EXPECT_FALSE(info_->validators()->texture_internal_format_storage.IsValid(
+      GL_BGRA8_EXT));
+}
+
+TEST_F(FeatureInfoTest, InitializeEXT_texture_format_BGRA8888AppleGLES3) {
+  SetupInitExpectationsWithGLVersion(
+      "GL_APPLE_texture_format_BGRA8888", "", "OpenGL ES 3.0");
+  EXPECT_TRUE(info_->feature_flags().ext_texture_storage);
+  EXPECT_THAT(info_->extensions(), HasSubstr("GL_EXT_texture_storage"));
+  EXPECT_TRUE(info_->validators()->texture_parameter.IsValid(
+      GL_TEXTURE_IMMUTABLE_FORMAT_EXT));
+  EXPECT_TRUE(info_->validators()->texture_internal_format_storage.IsValid(
       GL_BGRA8_EXT));
 }