chromium/third_party/angle/src/tests/compiler_tests/APPLE_clip_distance_test.cpp

//
// Copyright 2020 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// APPLE_clip_distance_test.cpp:
//   Test for APPLE_clip_distance
//

#include "tests/test_utils/ShaderExtensionTest.h"

namespace
{
const char EXTPragma[] = …;

// Shader using gl_ClipDistance
const char ESSL100_APPLEClipDistanceShader1[] = …;

// Shader redeclares gl_ClipDistance
const char ESSL100_APPLEClipDistanceShader2[] = …;

// ESSL 3.00 Shader using gl_ClipDistance
const char ESSL300_APPLEClipDistanceShader1[] = …;

// ESSL 3.00 Shader redeclares gl_ClipDistance
const char ESSL300_APPLEClipDistanceShader2[] = …;

class APPLEClipDistanceTest : public sh::ShaderExtensionTest
{ … };

// Extension flag is required to compile properly. Expect failure when it is
// not present.
TEST_P(APPLEClipDistanceTest, CompileFailsWithoutExtension)
{ … }

// Extension directive is required to compile properly. Expect failure when
// it is not present.
TEST_P(APPLEClipDistanceTest, CompileFailsWithExtensionWithoutPragma)
{ … }

// With extension flag and extension directive, compiling succeeds.
// Also test that the extension directive state is reset correctly.
TEST_P(APPLEClipDistanceTest, CompileSucceedsWithExtensionAndPragma)
{ … }

#if defined(ANGLE_ENABLE_VULKAN)
// With extension flag and extension directive, compiling using TranslatorVulkan succeeds.
TEST_P(APPLEClipDistanceTest, CompileSucceedsVulkan)
{ … }

// Test that the SPIR-V gen path can compile a shader when this extension is not supported.
TEST_P(APPLEClipDistanceTest, CompileSucceedsWithoutExtSupportVulkan)
{ … }
#endif

#if defined(ANGLE_ENABLE_METAL)
// With extension flag and extension directive, compiling using TranslatorMSL succeeds.
TEST_P(APPLEClipDistanceTest, CompileSucceedsMetal)
{
    mResources.APPLE_clip_distance = 1;
    mResources.MaxClipDistances    = 8;

    InitializeCompiler(SH_MSL_METAL_OUTPUT);
    EXPECT_TRUE(TestShaderCompile(EXTPragma));
}
#endif

// The SL #version 100 shaders that are correct work similarly
// in both GL2 and GL3, with and without the version string.
INSTANTIATE_TEST_SUITE_P(…);

INSTANTIATE_TEST_SUITE_P(…);

}  // anonymous namespace