| #include "ANGLETest.h" |
| |
| class GLSLTest : public ANGLETest |
| { |
| protected: |
| GLSLTest() |
| { |
| setWindowWidth(128); |
| setWindowHeight(128); |
| setConfigRedBits(8); |
| setConfigGreenBits(8); |
| setConfigBlueBits(8); |
| setConfigAlphaBits(8); |
| } |
| |
| virtual void SetUp() |
| { |
| ANGLETest::SetUp(); |
| |
| mSimpleVSSource = SHADER_SOURCE |
| ( |
| attribute vec4 inputAttribute; |
| void main() |
| { |
| gl_Position = inputAttribute; |
| } |
| ); |
| } |
| |
| std::string mSimpleVSSource; |
| }; |
| |
| TEST_F(GLSLTest, NamelessScopedStructs) |
| { |
| const std::string fragmentShaderSource = SHADER_SOURCE |
| ( |
| precision mediump float; |
| |
| void main() |
| { |
| struct |
| { |
| float q; |
| } b; |
| |
| gl_FragColor = vec4(1, 0, 0, 1); |
| gl_FragColor.a += b.q; |
| } |
| ); |
| |
| GLuint program = CompileProgram(mSimpleVSSource, fragmentShaderSource); |
| EXPECT_NE(0u, program); |
| } |
| TEST_F(GLSLTest, ScopedStructsOrderBug) |
| { |
| const std::string fragmentShaderSource = SHADER_SOURCE |
| ( |
| precision mediump float; |
| |
| struct T |
| { |
| float f; |
| }; |
| |
| void main() |
| { |
| T a; |
| |
| struct T |
| { |
| float q; |
| }; |
| |
| T b; |
| |
| gl_FragColor = vec4(1, 0, 0, 1); |
| gl_FragColor.a += a.f; |
| gl_FragColor.a += b.q; |
| } |
| ); |
| |
| GLuint program = CompileProgram(mSimpleVSSource, fragmentShaderSource); |
| EXPECT_NE(0u, program); |
| } |
| |
| TEST_F(GLSLTest, ScopedStructsBug) |
| { |
| const std::string fragmentShaderSource = SHADER_SOURCE |
| ( |
| precision mediump float; |
| |
| struct T_0 |
| { |
| float f; |
| }; |
| |
| void main() |
| { |
| gl_FragColor = vec4(1, 0, 0, 1); |
| |
| struct T |
| { |
| vec2 v; |
| }; |
| |
| T_0 a; |
| T b; |
| |
| gl_FragColor.a += a.f; |
| gl_FragColor.a += b.v.x; |
| } |
| ); |
| |
| GLuint program = CompileProgram(mSimpleVSSource, fragmentShaderSource); |
| EXPECT_NE(0u, program); |
| } |
| |
| TEST_F(GLSLTest, DxPositionBug) |
| { |
| const std::string &vertexShaderSource = SHADER_SOURCE |
| ( |
| attribute vec4 inputAttribute; |
| varying float dx_Position; |
| void main() |
| { |
| gl_Position = vec4(inputAttribute); |
| dx_Position = 0.0; |
| } |
| ); |
| |
| const std::string &fragmentShaderSource = SHADER_SOURCE |
| ( |
| precision mediump float; |
| |
| varying float dx_Position; |
| |
| void main() |
| { |
| gl_FragColor = vec4(dx_Position, 0, 0, 1); |
| } |
| ); |
| |
| GLuint program = CompileProgram(vertexShaderSource, fragmentShaderSource); |
| EXPECT_NE(0u, program); |
| } |
| |
| TEST_F(GLSLTest, ElseIfRewriting) |
| { |
| const std::string &vertexShaderSource = |
| "attribute vec4 a_position;\n" |
| "varying float v;\n" |
| "void main() {\n" |
| " gl_Position = a_position;\n" |
| " v = 1.0;\n" |
| " if (a_position.x <= 0.5) {\n" |
| " v = 0.0;\n" |
| " } else if (a_position.x >= 0.5) {\n" |
| " v = 2.0;\n" |
| " }\n" |
| "}\n"; |
| |
| const std::string &fragmentShaderSource = |
| "precision highp float;\n" |
| "varying float v;\n" |
| "void main() {\n" |
| " vec4 color = vec4(1.0, 0.0, 0.0, 1.0);\n" |
| " if (v >= 1.0) color = vec4(0.0, 1.0, 0.0, 1.0);\n" |
| " if (v >= 2.0) color = vec4(0.0, 0.0, 1.0, 1.0);\n" |
| " gl_FragColor = color;\n" |
| "}\n"; |
| |
| GLuint program = CompileProgram(vertexShaderSource, fragmentShaderSource); |
| ASSERT_NE(0u, program); |
| |
| drawQuad(program, "a_position", 0.5f); |
| swapBuffers(); |
| |
| EXPECT_PIXEL_EQ(0, 0, 255, 0, 0, 255); |
| EXPECT_PIXEL_EQ(getWindowWidth()-1, 0, 0, 255, 0, 255); |
| } |
| |
| TEST_F(GLSLTest, TwoElseIfRewriting) |
| { |
| const std::string &vertexShaderSource = |
| "attribute vec4 a_position;\n" |
| "varying float v;\n" |
| "void main() {\n" |
| " gl_Position = a_position;\n" |
| " if (a_position.x == 0.0) {\n" |
| " v = 1.0;\n" |
| " } else if (a_position.x > 0.5) {\n" |
| " v = 0.0;\n" |
| " } else if (a_position.x > 0.75) {\n" |
| " v = 0.5;\n" |
| " }\n" |
| "}\n"; |
| |
| const std::string &fragmentShaderSource = |
| "precision highp float;\n" |
| "varying float v;\n" |
| "void main() {\n" |
| " gl_FragColor = vec4(v, 0.0, 0.0, 1.0);\n" |
| "}\n"; |
| |
| GLuint program = CompileProgram(vertexShaderSource, fragmentShaderSource); |
| EXPECT_NE(0u, program); |
| } |
| |
| TEST_F(GLSLTest, InvariantVaryingOut) |
| { |
| const std::string fragmentShaderSource = SHADER_SOURCE |
| ( |
| precision mediump float; |
| varying float v_varying; |
| void main() { gl_FragColor = vec4(v_varying, 0, 0, 1.0); } |
| ); |
| |
| const std::string vertexShaderSource = SHADER_SOURCE |
| ( |
| attribute vec4 a_position; |
| invariant varying float v_varying; |
| void main() { v_varying = a_position.x; gl_Position = a_position; } |
| ); |
| |
| GLuint program = CompileProgram(vertexShaderSource, fragmentShaderSource); |
| EXPECT_NE(0u, program); |
| } |
| |
| TEST_F(GLSLTest, InvariantVaryingIn) |
| { |
| const std::string fragmentShaderSource = SHADER_SOURCE |
| ( |
| precision mediump float; |
| invariant varying float v_varying; |
| void main() { gl_FragColor = vec4(v_varying, 0, 0, 1.0); } |
| ); |
| |
| const std::string vertexShaderSource = SHADER_SOURCE |
| ( |
| attribute vec4 a_position; |
| varying float v_varying; |
| void main() { v_varying = a_position.x; gl_Position = a_position; } |
| ); |
| |
| GLuint program = CompileProgram(vertexShaderSource, fragmentShaderSource); |
| EXPECT_NE(0u, program); |
| } |
| |
| TEST_F(GLSLTest, InvariantVaryingBoth) |
| { |
| const std::string fragmentShaderSource = SHADER_SOURCE |
| ( |
| precision mediump float; |
| invariant varying float v_varying; |
| void main() { gl_FragColor = vec4(v_varying, 0, 0, 1.0); } |
| ); |
| |
| const std::string vertexShaderSource = SHADER_SOURCE |
| ( |
| attribute vec4 a_position; |
| invariant varying float v_varying; |
| void main() { v_varying = a_position.x; gl_Position = a_position; } |
| ); |
| |
| GLuint program = CompileProgram(vertexShaderSource, fragmentShaderSource); |
| EXPECT_NE(0u, program); |
| } |
| |
| TEST_F(GLSLTest, InvariantGLPosition) |
| { |
| const std::string fragmentShaderSource = SHADER_SOURCE |
| ( |
| precision mediump float; |
| varying float v_varying; |
| void main() { gl_FragColor = vec4(v_varying, 0, 0, 1.0); } |
| ); |
| |
| const std::string vertexShaderSource = SHADER_SOURCE |
| ( |
| attribute vec4 a_position; |
| invariant gl_Position; |
| varying float v_varying; |
| void main() { v_varying = a_position.x; gl_Position = a_position; } |
| ); |
| |
| GLuint program = CompileProgram(vertexShaderSource, fragmentShaderSource); |
| EXPECT_NE(0u, program); |
| } |
| |
| TEST_F(GLSLTest, InvariantAll) |
| { |
| const std::string fragmentShaderSource = SHADER_SOURCE |
| ( |
| precision mediump float; |
| varying float v_varying; |
| void main() { gl_FragColor = vec4(v_varying, 0, 0, 1.0); } |
| ); |
| |
| const std::string vertexShaderSource = |
| "#pragma STDGL invariant(all)\n" |
| "attribute vec4 a_position;\n" |
| "varying float v_varying;\n" |
| "void main() { v_varying = a_position.x; gl_Position = a_position; }\n"; |
| |
| GLuint program = CompileProgram(vertexShaderSource, fragmentShaderSource); |
| EXPECT_NE(0u, program); |
| } |