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//
// Copyright (c) 2015 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.
//
// BuiltInFunctionEmulator_test.cpp:
// Tests for writing the code for built-in function emulation.
//
#include "angle_gl.h"
#include "gtest/gtest.h"
#include "GLSLANG/ShaderLang.h"
#include "tests/test_utils/compiler_test.h"
namespace
{
// Test for the SH_EMULATE_BUILT_IN_FUNCTIONS flag.
class EmulateBuiltInFunctionsTest : public MatchOutputCodeTest
{
public:
EmulateBuiltInFunctionsTest()
: MatchOutputCodeTest(GL_VERTEX_SHADER,
SH_EMULATE_BUILT_IN_FUNCTIONS,
SH_GLSL_COMPATIBILITY_OUTPUT)
{
}
};
TEST_F(EmulateBuiltInFunctionsTest, DotEmulated)
{
const std::string shaderString =
"precision mediump float;\n"
"uniform float u;\n"
"void main()\n"
"{\n"
" gl_Position = vec4(dot(u, 1.0), 1.0, 1.0, 1.0);\n"
"}\n";
compile(shaderString);
ASSERT_TRUE(foundInCode("webgl_dot_emu("));
}
} // namespace
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