| // |
| // Copyright (c) 2017 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. |
| // |
| // AppendixALimitations_test.cpp: |
| // Tests for validating ESSL 1.00 Appendix A limitations. |
| // |
| |
| #include "gtest/gtest.h" |
| |
| #include "angle_gl.h" |
| #include "gtest/gtest.h" |
| #include "GLSLANG/ShaderLang.h" |
| #include "tests/test_utils/ShaderCompileTreeTest.h" |
| |
| using namespace sh; |
| |
| class AppendixALimitationsTest : public ShaderCompileTreeTest |
| { |
| public: |
| AppendixALimitationsTest() {} |
| protected: |
| ::GLenum getShaderType() const override { return GL_FRAGMENT_SHADER; } |
| ShShaderSpec getShaderSpec() const override { return SH_WEBGL_SPEC; } |
| }; |
| |
| // Test an invalid shader where a for loop index is used as an out parameter. |
| TEST_F(AppendixALimitationsTest, IndexAsFunctionOutParameter) |
| { |
| const std::string &shaderString = |
| "precision mediump float;\n" |
| "void fun(out int a)\n" |
| "{\n" |
| " a = 2;\n" |
| "}\n" |
| "void main()\n" |
| "{\n" |
| " for (int i = 0; i < 2; ++i)\n" |
| " {\n" |
| " fun(i);\n" |
| " }\n" |
| " gl_FragColor = vec4(0.0);\n" |
| "}\n"; |
| if (compile(shaderString)) |
| { |
| FAIL() << "Shader compilation succeeded, expecting failure:\n" << mInfoLog; |
| } |
| } |
| |
| // Test an invalid shader where a for loop index is used as an inout parameter. |
| TEST_F(AppendixALimitationsTest, IndexAsFunctionInOutParameter) |
| { |
| const std::string &shaderString = |
| "precision mediump float;\n" |
| "void fun(int b, inout int a)\n" |
| "{\n" |
| " a += b;\n" |
| "}\n" |
| "void main()\n" |
| "{\n" |
| " for (int i = 0; i < 2; ++i)\n" |
| " {\n" |
| " fun(2, i);\n" |
| " }\n" |
| " gl_FragColor = vec4(0.0);\n" |
| "}\n"; |
| if (compile(shaderString)) |
| { |
| FAIL() << "Shader compilation succeeded, expecting failure:\n" << mInfoLog; |
| } |
| } |
| |
| // Test a valid shader where a for loop index is used as an in parameter in a function that also has |
| // an out parameter. |
| TEST_F(AppendixALimitationsTest, IndexAsFunctionInParameter) |
| { |
| const std::string &shaderString = |
| "precision mediump float;\n" |
| "void fun(int b, inout int a)\n" |
| "{\n" |
| " a += b;\n" |
| "}\n" |
| "void main()\n" |
| "{\n" |
| " for (int i = 0; i < 2; ++i)\n" |
| " {\n" |
| " int a = 1;" |
| " fun(i, a);\n" |
| " }\n" |
| " gl_FragColor = vec4(0.0);\n" |
| "}\n"; |
| if (!compile(shaderString)) |
| { |
| FAIL() << "Shader compilation failed, expecting success:\n" << mInfoLog; |
| } |
| } |
| |
| // Test an invalid shader where a for loop index is used as a target of assignment. |
| TEST_F(AppendixALimitationsTest, IndexAsTargetOfAssignment) |
| { |
| const std::string &shaderString = |
| "precision mediump float;\n" |
| "void main()\n" |
| "{\n" |
| " for (int i = 0; i < 2; ++i)\n" |
| " {\n" |
| " i = 2;\n" |
| " }\n" |
| " gl_FragColor = vec4(0.0);\n" |
| "}\n"; |
| if (compile(shaderString)) |
| { |
| FAIL() << "Shader compilation succeeded, expecting failure:\n" << mInfoLog; |
| } |
| } |
| |
| // Test an invalid shader where a for loop index is incremented inside the loop. |
| TEST_F(AppendixALimitationsTest, IndexIncrementedInLoopBody) |
| { |
| const std::string &shaderString = |
| "precision mediump float;\n" |
| "void main()\n" |
| "{\n" |
| " for (int i = 0; i < 2; ++i)\n" |
| " {\n" |
| " ++i;\n" |
| " }\n" |
| " gl_FragColor = vec4(0.0);\n" |
| "}\n"; |
| if (compile(shaderString)) |
| { |
| FAIL() << "Shader compilation succeeded, expecting failure:\n" << mInfoLog; |
| } |
| } |