| // |
| // Copyright (c) 2014 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. |
| // |
| // DebugShaderPrecision_test.cpp: |
| // Tests for writing the code for shader precision emulation. |
| // |
| |
| #include "angle_gl.h" |
| #include "gtest/gtest.h" |
| #include "GLSLANG/ShaderLang.h" |
| #include "compiler/translator/TranslatorESSL.h" |
| #include "compiler/translator/TranslatorGLSL.h" |
| |
| class DebugShaderPrecisionTest : public testing::Test |
| { |
| public: |
| DebugShaderPrecisionTest() {} |
| |
| protected: |
| virtual void SetUp() |
| { |
| ShBuiltInResources resources; |
| ShInitBuiltInResources(&resources); |
| resources.WEBGL_debug_shader_precision = 1; |
| |
| mTranslatorESSL = new TranslatorESSL(GL_FRAGMENT_SHADER, SH_GLES2_SPEC); |
| ASSERT_TRUE(mTranslatorESSL->Init(resources)); |
| mTranslatorGLSL = new TranslatorGLSL(GL_FRAGMENT_SHADER, SH_GLES2_SPEC); |
| ASSERT_TRUE(mTranslatorGLSL->Init(resources)); |
| } |
| |
| virtual void TearDown() |
| { |
| delete mTranslatorESSL; |
| delete mTranslatorGLSL; |
| } |
| |
| void compile(const std::string& shaderString) |
| { |
| const char *shaderStrings[] = { shaderString.c_str() }; |
| |
| bool compilationSuccess = mTranslatorESSL->compile(shaderStrings, 1, SH_OBJECT_CODE); |
| TInfoSink &infoSink = mTranslatorESSL->getInfoSink(); |
| mESSLCode = infoSink.obj.c_str(); |
| if (!compilationSuccess) |
| FAIL() << "Shader compilation into ESSL failed " << infoSink.info.c_str(); |
| |
| compilationSuccess = mTranslatorGLSL->compile(shaderStrings, 1, SH_OBJECT_CODE); |
| infoSink = mTranslatorGLSL->getInfoSink(); |
| mGLSLCode = infoSink.obj.c_str(); |
| if (!compilationSuccess) |
| FAIL() << "Shader compilation into GLSL failed " << infoSink.info.c_str(); |
| } |
| |
| bool foundInESSLCode(const char* stringToFind) |
| { |
| return mESSLCode.find(stringToFind) != std::string::npos; |
| } |
| |
| bool foundInGLSLCode(const char* stringToFind) |
| { |
| return mGLSLCode.find(stringToFind) != std::string::npos; |
| } |
| |
| bool foundInCode(const char* stringToFind) |
| { |
| return foundInESSLCode(stringToFind) && foundInGLSLCode(stringToFind); |
| } |
| |
| bool notFoundInCode(const char* stringToFind) |
| { |
| return !foundInESSLCode(stringToFind) && !foundInGLSLCode(stringToFind); |
| } |
| |
| private: |
| TranslatorESSL *mTranslatorESSL; |
| TranslatorGLSL *mTranslatorGLSL; |
| std::string mESSLCode; |
| std::string mGLSLCode; |
| }; |
| |
| class NoDebugShaderPrecisionTest : public testing::Test |
| { |
| public: |
| NoDebugShaderPrecisionTest() {} |
| |
| protected: |
| virtual void SetUp() |
| { |
| ShBuiltInResources resources; |
| ShInitBuiltInResources(&resources); |
| |
| mTranslator = new TranslatorGLSL(GL_FRAGMENT_SHADER, SH_GLES2_SPEC); |
| ASSERT_TRUE(mTranslator->Init(resources)); |
| } |
| |
| virtual void TearDown() |
| { |
| delete mTranslator; |
| } |
| |
| bool compile(const std::string& shaderString) |
| { |
| const char *shaderStrings[] = { shaderString.c_str() }; |
| bool compilationSuccess = mTranslator->compile(shaderStrings, 1, SH_OBJECT_CODE); |
| TInfoSink &infoSink = mTranslator->getInfoSink(); |
| mCode = infoSink.obj.c_str(); |
| return compilationSuccess; |
| } |
| |
| bool foundInCode(const char* stringToFind) |
| { |
| return mCode.find(stringToFind) != std::string::npos; |
| } |
| |
| private: |
| TranslatorGLSL *mTranslator; |
| std::string mCode; |
| }; |
| |
| TEST_F(DebugShaderPrecisionTest, RoundingFunctionsDefined) |
| { |
| const std::string &shaderString = |
| "precision mediump float;\n" |
| "uniform float u;\n" |
| "void main() {\n" |
| " gl_FragColor = vec4(u);\n" |
| "}\n"; |
| compile(shaderString); |
| ASSERT_TRUE(foundInESSLCode("highp float angle_frm(in highp float")); |
| ASSERT_TRUE(foundInESSLCode("highp vec2 angle_frm(in highp vec2")); |
| ASSERT_TRUE(foundInESSLCode("highp vec3 angle_frm(in highp vec3")); |
| ASSERT_TRUE(foundInESSLCode("highp vec4 angle_frm(in highp vec4")); |
| ASSERT_TRUE(foundInESSLCode("highp mat2 angle_frm(in highp mat2")); |
| ASSERT_TRUE(foundInESSLCode("highp mat3 angle_frm(in highp mat3")); |
| ASSERT_TRUE(foundInESSLCode("highp mat4 angle_frm(in highp mat4")); |
| |
| ASSERT_TRUE(foundInESSLCode("highp float angle_frl(in highp float")); |
| ASSERT_TRUE(foundInESSLCode("highp vec2 angle_frl(in highp vec2")); |
| ASSERT_TRUE(foundInESSLCode("highp vec3 angle_frl(in highp vec3")); |
| ASSERT_TRUE(foundInESSLCode("highp vec4 angle_frl(in highp vec4")); |
| ASSERT_TRUE(foundInESSLCode("highp mat2 angle_frl(in highp mat2")); |
| ASSERT_TRUE(foundInESSLCode("highp mat3 angle_frl(in highp mat3")); |
| ASSERT_TRUE(foundInESSLCode("highp mat4 angle_frl(in highp mat4")); |
| |
| ASSERT_TRUE(foundInGLSLCode("float angle_frm(in float")); |
| ASSERT_TRUE(foundInGLSLCode("vec2 angle_frm(in vec2")); |
| ASSERT_TRUE(foundInGLSLCode("vec3 angle_frm(in vec3")); |
| ASSERT_TRUE(foundInGLSLCode("vec4 angle_frm(in vec4")); |
| ASSERT_TRUE(foundInGLSLCode("mat2 angle_frm(in mat2")); |
| ASSERT_TRUE(foundInGLSLCode("mat3 angle_frm(in mat3")); |
| ASSERT_TRUE(foundInGLSLCode("mat4 angle_frm(in mat4")); |
| |
| ASSERT_TRUE(foundInGLSLCode("float angle_frl(in float")); |
| ASSERT_TRUE(foundInGLSLCode("vec2 angle_frl(in vec2")); |
| ASSERT_TRUE(foundInGLSLCode("vec3 angle_frl(in vec3")); |
| ASSERT_TRUE(foundInGLSLCode("vec4 angle_frl(in vec4")); |
| ASSERT_TRUE(foundInGLSLCode("mat2 angle_frl(in mat2")); |
| ASSERT_TRUE(foundInGLSLCode("mat3 angle_frl(in mat3")); |
| ASSERT_TRUE(foundInGLSLCode("mat4 angle_frl(in mat4")); |
| }; |
| |
| TEST_F(DebugShaderPrecisionTest, PragmaDisablesEmulation) |
| { |
| const std::string &shaderString = |
| "#pragma webgl_debug_shader_precision(off)\n" |
| "precision mediump float;\n" |
| "uniform float u;\n" |
| "void main() {\n" |
| " gl_FragColor = vec4(u);\n" |
| "}\n"; |
| compile(shaderString); |
| ASSERT_TRUE(notFoundInCode("angle_frm")); |
| const std::string &shaderStringPragmaOn = |
| "#pragma webgl_debug_shader_precision(on)\n" |
| "precision mediump float;\n" |
| "uniform float u;\n" |
| "void main() {\n" |
| " gl_FragColor = vec4(u);\n" |
| "}\n"; |
| compile(shaderStringPragmaOn); |
| ASSERT_TRUE(foundInCode("angle_frm")); |
| }; |
| |
| // Emulation can't be toggled on for only a part of a shader. |
| // Only the last pragma in the shader has an effect. |
| TEST_F(DebugShaderPrecisionTest, MultiplePragmas) |
| { |
| const std::string &shaderString = |
| "#pragma webgl_debug_shader_precision(off)\n" |
| "precision mediump float;\n" |
| "uniform float u;\n" |
| "void main() {\n" |
| " gl_FragColor = vec4(u);\n" |
| "}\n" |
| "#pragma webgl_debug_shader_precision(on)\n"; |
| compile(shaderString); |
| ASSERT_TRUE(foundInCode("angle_frm")); |
| }; |
| |
| TEST_F(NoDebugShaderPrecisionTest, HelpersWrittenOnlyWithExtension) |
| { |
| const std::string &shaderString = |
| "precision mediump float;\n" |
| "uniform float u;\n" |
| "void main() {\n" |
| " gl_FragColor = vec4(u);\n" |
| "}\n"; |
| ASSERT_TRUE(compile(shaderString)); |
| ASSERT_FALSE(foundInCode("angle_frm")); |
| }; |
| |
| TEST_F(NoDebugShaderPrecisionTest, PragmaHasEffectsOnlyWithExtension) |
| { |
| const std::string &shaderString = |
| "#pragma webgl_debug_shader_precision(on)\n" |
| "precision mediump float;\n" |
| "uniform float u;\n" |
| "void main() {\n" |
| " gl_FragColor = vec4(u);\n" |
| "}\n"; |
| ASSERT_TRUE(compile(shaderString)); |
| ASSERT_FALSE(foundInCode("angle_frm")); |
| }; |
| |
| TEST_F(DebugShaderPrecisionTest, DeclarationsAndConstants) |
| { |
| const std::string &shaderString = |
| "precision mediump float;\n" |
| "uniform vec4 f;\n" |
| "uniform float uu, uu2;\n" |
| "varying float vv, vv2;\n" |
| "float gg = 0.0, gg2;\n" |
| "void main() {\n" |
| " float aa = 0.0, aa2;\n" |
| " gl_FragColor = f;\n" |
| "}\n"; |
| compile(shaderString); |
| // Declarations or constants should not have rounding inserted around them |
| ASSERT_TRUE(notFoundInCode("angle_frm(0")); |
| ASSERT_TRUE(notFoundInCode("angle_frm(uu")); |
| ASSERT_TRUE(notFoundInCode("angle_frm(vv")); |
| ASSERT_TRUE(notFoundInCode("angle_frm(gg")); |
| ASSERT_TRUE(notFoundInCode("angle_frm(aa")); |
| }; |
| |
| TEST_F(DebugShaderPrecisionTest, InitializerRounding) |
| { |
| const std::string &shaderString = |
| "precision mediump float;\n" |
| "uniform float u;\n" |
| "void main() {\n" |
| " float a = u;\n" |
| " gl_FragColor = vec4(a);\n" |
| "}\n"; |
| compile(shaderString); |
| // An expression that's part of initialization should have rounding |
| ASSERT_TRUE(foundInCode("angle_frm(u)")); |
| }; |
| |
| TEST_F(DebugShaderPrecisionTest, CompoundAddFunction) |
| { |
| const std::string &shaderString = |
| "precision mediump float;\n" |
| "uniform vec4 u;\n" |
| "uniform vec4 u2;\n" |
| "void main() {\n" |
| " vec4 v = u;\n" |
| " v += u2;\n" |
| " gl_FragColor = v;\n" |
| "}\n"; |
| compile(shaderString); |
| ASSERT_TRUE(foundInESSLCode( |
| "highp vec4 angle_compound_add_frm(inout highp vec4 x, in highp vec4 y) {\n" |
| " x = angle_frm(angle_frm(x) + y);" |
| )); |
| ASSERT_TRUE(foundInGLSLCode( |
| "vec4 angle_compound_add_frm(inout vec4 x, in vec4 y) {\n" |
| " x = angle_frm(angle_frm(x) + y);" |
| )); |
| ASSERT_TRUE(foundInCode("angle_compound_add_frm(v, angle_frm(u2));")); |
| ASSERT_TRUE(notFoundInCode("+=")); |
| }; |
| |
| TEST_F(DebugShaderPrecisionTest, CompoundSubFunction) |
| { |
| const std::string &shaderString = |
| "precision mediump float;\n" |
| "uniform vec4 u;\n" |
| "uniform vec4 u2;\n" |
| "void main() {\n" |
| " vec4 v = u;\n" |
| " v -= u2;\n" |
| " gl_FragColor = v;\n" |
| "}\n"; |
| compile(shaderString); |
| ASSERT_TRUE(foundInESSLCode( |
| "highp vec4 angle_compound_sub_frm(inout highp vec4 x, in highp vec4 y) {\n" |
| " x = angle_frm(angle_frm(x) - y);" |
| )); |
| ASSERT_TRUE(foundInGLSLCode( |
| "vec4 angle_compound_sub_frm(inout vec4 x, in vec4 y) {\n" |
| " x = angle_frm(angle_frm(x) - y);" |
| )); |
| ASSERT_TRUE(foundInCode("angle_compound_sub_frm(v, angle_frm(u2));")); |
| ASSERT_TRUE(notFoundInCode("-=")); |
| }; |
| |
| TEST_F(DebugShaderPrecisionTest, CompoundDivFunction) |
| { |
| const std::string &shaderString = |
| "precision mediump float;\n" |
| "uniform vec4 u;\n" |
| "uniform vec4 u2;\n" |
| "void main() {\n" |
| " vec4 v = u;\n" |
| " v /= u2;\n" |
| " gl_FragColor = v;\n" |
| "}\n"; |
| compile(shaderString); |
| ASSERT_TRUE(foundInESSLCode( |
| "highp vec4 angle_compound_div_frm(inout highp vec4 x, in highp vec4 y) {\n" |
| " x = angle_frm(angle_frm(x) / y);" |
| )); |
| ASSERT_TRUE(foundInGLSLCode( |
| "vec4 angle_compound_div_frm(inout vec4 x, in vec4 y) {\n" |
| " x = angle_frm(angle_frm(x) / y);" |
| )); |
| ASSERT_TRUE(foundInCode("angle_compound_div_frm(v, angle_frm(u2));")); |
| ASSERT_TRUE(notFoundInCode("/=")); |
| }; |
| |
| TEST_F(DebugShaderPrecisionTest, CompoundMulFunction) |
| { |
| const std::string &shaderString = |
| "precision mediump float;\n" |
| "uniform vec4 u;\n" |
| "uniform vec4 u2;\n" |
| "void main() {\n" |
| " vec4 v = u;\n" |
| " v *= u2;\n" |
| " gl_FragColor = v;\n" |
| "}\n"; |
| compile(shaderString); |
| ASSERT_TRUE(foundInESSLCode( |
| "highp vec4 angle_compound_mul_frm(inout highp vec4 x, in highp vec4 y) {\n" |
| " x = angle_frm(angle_frm(x) * y);" |
| )); |
| ASSERT_TRUE(foundInGLSLCode( |
| "vec4 angle_compound_mul_frm(inout vec4 x, in vec4 y) {\n" |
| " x = angle_frm(angle_frm(x) * y);" |
| )); |
| ASSERT_TRUE(foundInCode("angle_compound_mul_frm(v, angle_frm(u2));")); |
| ASSERT_TRUE(notFoundInCode("*=")); |
| }; |
| |
| TEST_F(DebugShaderPrecisionTest, CompoundAddVectorPlusScalarFunction) |
| { |
| const std::string &shaderString = |
| "precision mediump float;\n" |
| "uniform vec4 u;\n" |
| "uniform float u2;\n" |
| "void main() {\n" |
| " vec4 v = u;\n" |
| " v += u2;\n" |
| " gl_FragColor = v;\n" |
| "}\n"; |
| compile(shaderString); |
| ASSERT_TRUE(foundInESSLCode( |
| "highp vec4 angle_compound_add_frm(inout highp vec4 x, in highp float y) {\n" |
| " x = angle_frm(angle_frm(x) + y);" |
| )); |
| ASSERT_TRUE(foundInGLSLCode( |
| "vec4 angle_compound_add_frm(inout vec4 x, in float y) {\n" |
| " x = angle_frm(angle_frm(x) + y);" |
| )); |
| ASSERT_TRUE(foundInCode("angle_compound_add_frm(v, angle_frm(u2));")); |
| ASSERT_TRUE(notFoundInCode("+=")); |
| }; |
| |
| TEST_F(DebugShaderPrecisionTest, CompoundMatrixTimesMatrixFunction) |
| { |
| const std::string &shaderString = |
| "precision mediump float;\n" |
| "uniform mat4 u;\n" |
| "uniform mat4 u2;\n" |
| "void main() {\n" |
| " mat4 m = u;\n" |
| " m *= u2;\n" |
| " gl_FragColor = m[0];\n" |
| "}\n"; |
| compile(shaderString); |
| ASSERT_TRUE(foundInESSLCode( |
| "highp mat4 angle_compound_mul_frm(inout highp mat4 x, in highp mat4 y) {\n" |
| " x = angle_frm(angle_frm(x) * y);" |
| )); |
| ASSERT_TRUE(foundInGLSLCode( |
| "mat4 angle_compound_mul_frm(inout mat4 x, in mat4 y) {\n" |
| " x = angle_frm(angle_frm(x) * y);" |
| )); |
| ASSERT_TRUE(foundInCode("angle_compound_mul_frm(m, angle_frm(u2));")); |
| ASSERT_TRUE(notFoundInCode("*=")); |
| }; |
| |
| TEST_F(DebugShaderPrecisionTest, CompoundMatrixTimesScalarFunction) |
| { |
| const std::string &shaderString = |
| "precision mediump float;\n" |
| "uniform mat4 u;\n" |
| "uniform float u2;\n" |
| "void main() {\n" |
| " mat4 m = u;\n" |
| " m *= u2;\n" |
| " gl_FragColor = m[0];\n" |
| "}\n"; |
| compile(shaderString); |
| ASSERT_TRUE(foundInESSLCode( |
| "highp mat4 angle_compound_mul_frm(inout highp mat4 x, in highp float y) {\n" |
| " x = angle_frm(angle_frm(x) * y);" |
| )); |
| ASSERT_TRUE(foundInGLSLCode( |
| "mat4 angle_compound_mul_frm(inout mat4 x, in float y) {\n" |
| " x = angle_frm(angle_frm(x) * y);" |
| )); |
| ASSERT_TRUE(foundInCode("angle_compound_mul_frm(m, angle_frm(u2));")); |
| ASSERT_TRUE(notFoundInCode("*=")); |
| }; |
| |
| TEST_F(DebugShaderPrecisionTest, CompoundVectorTimesMatrixFunction) |
| { |
| const std::string &shaderString = |
| "precision mediump float;\n" |
| "uniform vec4 u;\n" |
| "uniform mat4 u2;\n" |
| "void main() {\n" |
| " vec4 v = u;\n" |
| " v *= u2;\n" |
| " gl_FragColor = v;\n" |
| "}\n"; |
| compile(shaderString); |
| ASSERT_TRUE(foundInESSLCode( |
| "highp vec4 angle_compound_mul_frm(inout highp vec4 x, in highp mat4 y) {\n" |
| " x = angle_frm(angle_frm(x) * y);" |
| )); |
| ASSERT_TRUE(foundInGLSLCode("vec4 angle_compound_mul_frm(inout vec4 x, in mat4 y) {\n" |
| " x = angle_frm(angle_frm(x) * y);" |
| )); |
| ASSERT_TRUE(foundInCode("angle_compound_mul_frm(v, angle_frm(u2));")); |
| ASSERT_TRUE(notFoundInCode("*=")); |
| }; |
| |
| TEST_F(DebugShaderPrecisionTest, CompoundVectorTimesScalarFunction) |
| { |
| const std::string &shaderString = |
| "precision mediump float;\n" |
| "uniform vec4 u;\n" |
| "uniform float u2;\n" |
| "void main() {\n" |
| " vec4 v = u;\n" |
| " v *= u2;\n" |
| " gl_FragColor = v;\n" |
| "}\n"; |
| compile(shaderString); |
| ASSERT_TRUE(foundInESSLCode( |
| "highp vec4 angle_compound_mul_frm(inout highp vec4 x, in highp float y) {\n" |
| " x = angle_frm(angle_frm(x) * y);" |
| )); |
| ASSERT_TRUE(foundInGLSLCode( |
| "vec4 angle_compound_mul_frm(inout vec4 x, in float y) {\n" |
| " x = angle_frm(angle_frm(x) * y);" |
| )); |
| ASSERT_TRUE(foundInCode("angle_compound_mul_frm(v, angle_frm(u2));")); |
| ASSERT_TRUE(notFoundInCode("*=")); |
| }; |
| |
| TEST_F(DebugShaderPrecisionTest, BinaryMathRounding) |
| { |
| const std::string &shaderString = |
| "precision mediump float;\n" |
| "uniform vec4 u1;\n" |
| "uniform vec4 u2;\n" |
| "uniform vec4 u3;\n" |
| "uniform vec4 u4;\n" |
| "uniform vec4 u5;\n" |
| "void main() {\n" |
| " vec4 v1 = u1 + u2;\n" |
| " vec4 v2 = u2 - u3;\n" |
| " vec4 v3 = u3 * u4;\n" |
| " vec4 v4 = u4 / u5;\n" |
| " vec4 v5;\n" |
| " vec4 v6 = (v5 = u5);\n" |
| " gl_FragColor = v1 + v2 + v3 + v4;\n" |
| "}\n"; |
| compile(shaderString); |
| ASSERT_TRUE(foundInCode("v1 = angle_frm((angle_frm(u1) + angle_frm(u2)))")); |
| ASSERT_TRUE(foundInCode("v2 = angle_frm((angle_frm(u2) - angle_frm(u3)))")); |
| ASSERT_TRUE(foundInCode("v3 = angle_frm((angle_frm(u3) * angle_frm(u4)))")); |
| ASSERT_TRUE(foundInCode("v4 = angle_frm((angle_frm(u4) / angle_frm(u5)))")); |
| ASSERT_TRUE(foundInCode("v6 = angle_frm((v5 = angle_frm(u5)))")); |
| }; |
| |
| TEST_F(DebugShaderPrecisionTest, BuiltInMathFunctionRounding) |
| { |
| const std::string &shaderString = |
| "precision mediump float;\n" |
| "uniform vec4 u1;\n" |
| "uniform vec4 u2;\n" |
| "uniform vec4 u3;\n" |
| "uniform float uf;\n" |
| "uniform float uf2;\n" |
| "uniform vec3 uf31;\n" |
| "uniform vec3 uf32;\n" |
| "uniform mat4 um1;\n" |
| "uniform mat4 um2;\n" |
| "void main() {\n" |
| " vec4 v1 = radians(u1);\n" |
| " vec4 v2 = degrees(u1);\n" |
| " vec4 v3 = sin(u1);\n" |
| " vec4 v4 = cos(u1);\n" |
| " vec4 v5 = tan(u1);\n" |
| " vec4 v6 = asin(u1);\n" |
| " vec4 v7 = acos(u1);\n" |
| " vec4 v8 = atan(u1);\n" |
| " vec4 v9 = atan(u1, u2);\n" |
| " vec4 v10 = pow(u1, u2);\n" |
| " vec4 v11 = exp(u1);\n" |
| " vec4 v12 = log(u1);\n" |
| " vec4 v13 = exp2(u1);\n" |
| " vec4 v14 = log2(u1);\n" |
| " vec4 v15 = sqrt(u1);\n" |
| " vec4 v16 = inversesqrt(u1);\n" |
| " vec4 v17 = abs(u1);\n" |
| " vec4 v18 = sign(u1);\n" |
| " vec4 v19 = floor(u1);\n" |
| " vec4 v20 = ceil(u1);\n" |
| " vec4 v21 = fract(u1);\n" |
| " vec4 v22 = mod(u1, uf);\n" |
| " vec4 v23 = mod(u1, u2);\n" |
| " vec4 v24 = min(u1, uf);\n" |
| " vec4 v25 = min(u1, u2);\n" |
| " vec4 v26 = max(u1, uf);\n" |
| " vec4 v27 = max(u1, u2);\n" |
| " vec4 v28 = clamp(u1, u2, u3);\n" |
| " vec4 v29 = clamp(u1, uf, uf2);\n" |
| " vec4 v30 = mix(u1, u2, u3);\n" |
| " vec4 v31 = mix(u1, u2, uf);\n" |
| " vec4 v32 = step(u1, u2);\n" |
| " vec4 v33 = step(uf, u1);\n" |
| " vec4 v34 = smoothstep(u1, u2, u3);\n" |
| " vec4 v35 = smoothstep(uf, uf2, u1);\n" |
| " vec4 v36 = normalize(u1);\n" |
| " vec4 v37 = faceforward(u1, u2, u3);\n" |
| " vec4 v38 = reflect(u1, u2);\n" |
| " vec4 v39 = refract(u1, u2, uf);\n" |
| |
| " float f1 = length(u1);\n" |
| " float f2 = distance(u1, u2);\n" |
| " float f3 = dot(u1, u2);\n" |
| " vec3 vf31 = cross(uf31, uf32);\n" |
| " mat4 m1 = matrixCompMult(um1, um2);\n" |
| |
| " gl_FragColor = v1 + v2 + v3 + v4 + v5 + v6 + v7 + v8 + v9 + v10 +" |
| "v11 + v12 + v13 + v14 + v15 + v16 + v17 + v18 + v19 + v20 +" |
| "v21 + v22 + v23 + v24 + v25 + v26 + v27 + v28 + v29 + v30 +" |
| "v31 + v32 + v33 + v34 + v35 + v36 + v37 + v38 + v39 +" |
| "vec4(f1, f2, f3, 0.0) + vec4(vf31, 0.0) + m1[0];\n" |
| "}\n"; |
| compile(shaderString); |
| ASSERT_TRUE(foundInCode("v1 = angle_frm(radians(angle_frm(u1)))")); |
| ASSERT_TRUE(foundInCode("v2 = angle_frm(degrees(angle_frm(u1)))")); |
| ASSERT_TRUE(foundInCode("v3 = angle_frm(sin(angle_frm(u1)))")); |
| ASSERT_TRUE(foundInCode("v4 = angle_frm(cos(angle_frm(u1)))")); |
| ASSERT_TRUE(foundInCode("v5 = angle_frm(tan(angle_frm(u1)))")); |
| ASSERT_TRUE(foundInCode("v6 = angle_frm(asin(angle_frm(u1)))")); |
| ASSERT_TRUE(foundInCode("v7 = angle_frm(acos(angle_frm(u1)))")); |
| ASSERT_TRUE(foundInCode("v8 = angle_frm(atan(angle_frm(u1)))")); |
| ASSERT_TRUE(foundInCode("v9 = angle_frm(atan(angle_frm(u1), angle_frm(u2)))")); |
| ASSERT_TRUE(foundInCode("v10 = angle_frm(pow(angle_frm(u1), angle_frm(u2)))")); |
| ASSERT_TRUE(foundInCode("v11 = angle_frm(exp(angle_frm(u1)))")); |
| ASSERT_TRUE(foundInCode("v12 = angle_frm(log(angle_frm(u1)))")); |
| ASSERT_TRUE(foundInCode("v13 = angle_frm(exp2(angle_frm(u1)))")); |
| ASSERT_TRUE(foundInCode("v14 = angle_frm(log2(angle_frm(u1)))")); |
| ASSERT_TRUE(foundInCode("v15 = angle_frm(sqrt(angle_frm(u1)))")); |
| ASSERT_TRUE(foundInCode("v16 = angle_frm(inversesqrt(angle_frm(u1)))")); |
| ASSERT_TRUE(foundInCode("v17 = angle_frm(abs(angle_frm(u1)))")); |
| ASSERT_TRUE(foundInCode("v18 = angle_frm(sign(angle_frm(u1)))")); |
| ASSERT_TRUE(foundInCode("v19 = angle_frm(floor(angle_frm(u1)))")); |
| ASSERT_TRUE(foundInCode("v20 = angle_frm(ceil(angle_frm(u1)))")); |
| ASSERT_TRUE(foundInCode("v21 = angle_frm(fract(angle_frm(u1)))")); |
| ASSERT_TRUE(foundInCode("v22 = angle_frm(mod(angle_frm(u1), angle_frm(uf)))")); |
| ASSERT_TRUE(foundInCode("v23 = angle_frm(mod(angle_frm(u1), angle_frm(u2)))")); |
| ASSERT_TRUE(foundInCode("v24 = angle_frm(min(angle_frm(u1), angle_frm(uf)))")); |
| ASSERT_TRUE(foundInCode("v25 = angle_frm(min(angle_frm(u1), angle_frm(u2)))")); |
| ASSERT_TRUE(foundInCode("v26 = angle_frm(max(angle_frm(u1), angle_frm(uf)))")); |
| ASSERT_TRUE(foundInCode("v27 = angle_frm(max(angle_frm(u1), angle_frm(u2)))")); |
| ASSERT_TRUE(foundInCode("v28 = angle_frm(clamp(angle_frm(u1), angle_frm(u2), angle_frm(u3)))")); |
| ASSERT_TRUE(foundInCode("v29 = angle_frm(clamp(angle_frm(u1), angle_frm(uf), angle_frm(uf2)))")); |
| ASSERT_TRUE(foundInCode("v30 = angle_frm(mix(angle_frm(u1), angle_frm(u2), angle_frm(u3)))")); |
| ASSERT_TRUE(foundInCode("v31 = angle_frm(mix(angle_frm(u1), angle_frm(u2), angle_frm(uf)))")); |
| ASSERT_TRUE(foundInCode("v32 = angle_frm(step(angle_frm(u1), angle_frm(u2)))")); |
| ASSERT_TRUE(foundInCode("v33 = angle_frm(step(angle_frm(uf), angle_frm(u1)))")); |
| ASSERT_TRUE(foundInCode("v34 = angle_frm(smoothstep(angle_frm(u1), angle_frm(u2), angle_frm(u3)))")); |
| ASSERT_TRUE(foundInCode("v35 = angle_frm(smoothstep(angle_frm(uf), angle_frm(uf2), angle_frm(u1)))")); |
| ASSERT_TRUE(foundInCode("v36 = angle_frm(normalize(angle_frm(u1)))")); |
| ASSERT_TRUE(foundInCode("v37 = angle_frm(faceforward(angle_frm(u1), angle_frm(u2), angle_frm(u3)))")); |
| ASSERT_TRUE(foundInCode("v38 = angle_frm(reflect(angle_frm(u1), angle_frm(u2)))")); |
| ASSERT_TRUE(foundInCode("v39 = angle_frm(refract(angle_frm(u1), angle_frm(u2), angle_frm(uf)))")); |
| |
| ASSERT_TRUE(foundInCode("f1 = angle_frm(length(angle_frm(u1)))")); |
| ASSERT_TRUE(foundInCode("f2 = angle_frm(distance(angle_frm(u1), angle_frm(u2)))")); |
| ASSERT_TRUE(foundInCode("f3 = angle_frm(dot(angle_frm(u1), angle_frm(u2)))")); |
| ASSERT_TRUE(foundInCode("vf31 = angle_frm(cross(angle_frm(uf31), angle_frm(uf32)))")); |
| ASSERT_TRUE(foundInCode("m1 = angle_frm(matrixCompMult(angle_frm(um1), angle_frm(um2)))")); |
| }; |
| |
| TEST_F(DebugShaderPrecisionTest, BuiltInRelationalFunctionRounding) |
| { |
| const std::string &shaderString = |
| "precision mediump float;\n" |
| "uniform vec4 u1;\n" |
| "uniform vec4 u2;\n" |
| "void main() {\n" |
| " bvec4 bv1 = lessThan(u1, u2);\n" |
| " bvec4 bv2 = lessThanEqual(u1, u2);\n" |
| " bvec4 bv3 = greaterThan(u1, u2);\n" |
| " bvec4 bv4 = greaterThanEqual(u1, u2);\n" |
| " bvec4 bv5 = equal(u1, u2);\n" |
| " bvec4 bv6 = notEqual(u1, u2);\n" |
| " gl_FragColor = vec4(bv1) + vec4(bv2) + vec4(bv3) + vec4(bv4) + vec4(bv5) + vec4(bv6);\n" |
| "}\n"; |
| compile(shaderString); |
| ASSERT_TRUE(foundInCode("bv1 = lessThan(angle_frm(u1), angle_frm(u2))")); |
| ASSERT_TRUE(foundInCode("bv2 = lessThanEqual(angle_frm(u1), angle_frm(u2))")); |
| ASSERT_TRUE(foundInCode("bv3 = greaterThan(angle_frm(u1), angle_frm(u2))")); |
| ASSERT_TRUE(foundInCode("bv4 = greaterThanEqual(angle_frm(u1), angle_frm(u2))")); |
| ASSERT_TRUE(foundInCode("bv5 = equal(angle_frm(u1), angle_frm(u2))")); |
| ASSERT_TRUE(foundInCode("bv6 = notEqual(angle_frm(u1), angle_frm(u2))")); |
| }; |
| |
| TEST_F(DebugShaderPrecisionTest, ConstructorRounding) |
| { |
| const std::string &shaderString = |
| "precision mediump float;\n" |
| "precision mediump int;\n" |
| "uniform float u1;\n" |
| "uniform float u2;\n" |
| "uniform float u3;\n" |
| "uniform float u4;\n" |
| "uniform ivec4 uiv;\n" |
| "void main() {\n" |
| " vec4 v1 = vec4(u1, u2, u3, u4);\n" |
| " vec4 v2 = vec4(uiv);\n" |
| " gl_FragColor = v1 + v2;\n" |
| "}\n"; |
| compile(shaderString); |
| // Note: this is suboptimal for the case taking four floats, but optimizing would be tricky. |
| ASSERT_TRUE(foundInCode("v1 = angle_frm(vec4(angle_frm(u1), angle_frm(u2), angle_frm(u3), angle_frm(u4)))")); |
| ASSERT_TRUE(foundInCode("v2 = angle_frm(vec4(uiv))")); |
| }; |
| |
| TEST_F(DebugShaderPrecisionTest, StructConstructorNoRounding) |
| { |
| const std::string &shaderString = |
| "precision mediump float;\n" |
| "struct S { mediump vec4 a; };\n" |
| "uniform vec4 u;\n" |
| "void main() {\n" |
| " S s = S(u);\n" |
| " gl_FragColor = s.a;\n" |
| "}\n"; |
| compile(shaderString); |
| ASSERT_TRUE(foundInCode("s = S(angle_frm(u))")); |
| ASSERT_TRUE(notFoundInCode("angle_frm(S")); |
| }; |
| |
| TEST_F(DebugShaderPrecisionTest, SwizzleRounding) |
| { |
| const std::string &shaderString = |
| "precision mediump float;\n" |
| "uniform vec4 u;\n" |
| "void main() {\n" |
| " vec4 v = u.xyxy;" |
| " gl_FragColor = v;\n" |
| "}\n"; |
| compile(shaderString); |
| ASSERT_TRUE(foundInCode("v = angle_frm(u).xyxy")); |
| }; |
| |
| TEST_F(DebugShaderPrecisionTest, BuiltInTexFunctionRounding) |
| { |
| const std::string &shaderString = |
| "precision mediump float;\n" |
| "precision lowp sampler2D;\n" |
| "uniform vec2 u;\n" |
| "uniform sampler2D s;\n" |
| "void main() {\n" |
| " lowp vec4 v = texture2D(s, u);\n" |
| " gl_FragColor = v;\n" |
| "}\n"; |
| compile(shaderString); |
| ASSERT_TRUE(foundInCode("v = angle_frl(texture2D(s, angle_frm(u)))")); |
| }; |
| |
| TEST_F(DebugShaderPrecisionTest, FunctionCallParameterQualifiersFromDefinition) |
| { |
| const std::string &shaderString = |
| "precision mediump float;\n" |
| "uniform vec4 u1;\n" |
| "uniform vec4 u2;\n" |
| "uniform vec4 u3;\n" |
| "uniform vec4 u4;\n" |
| "uniform vec4 u5;\n" |
| "vec4 add(in vec4 x, in vec4 y) {\n" |
| " return x + y;\n" |
| "}\n" |
| "void compound_add(inout vec4 x, in vec4 y) {\n" |
| " x = x + y;\n" |
| "}\n" |
| "void add_to_last(in vec4 x, in vec4 y, out vec4 z) {\n" |
| " z = x + y;\n" |
| "}\n" |
| "void main() {\n" |
| " vec4 v = add(u1, u2);\n" |
| " compound_add(v, u3);\n" |
| " vec4 v2;\n" |
| " add_to_last(u4, u5, v2);\n" |
| " gl_FragColor = v + v2;\n" |
| "}\n"; |
| compile(shaderString); |
| // Note that this is not optimal code, there are redundant frm calls. |
| // However, getting the implementation working when other operations |
| // are nested within function calls would be tricky if to get right |
| // otherwise. |
| // Test in parameters |
| ASSERT_TRUE(foundInCode("v = add(angle_frm(u1), angle_frm(u2))")); |
| // Test inout parameter |
| ASSERT_TRUE(foundInCode("compound_add(v, angle_frm(u3))")); |
| // Test out parameter |
| ASSERT_TRUE(foundInCode("add_to_last(angle_frm(u4), angle_frm(u5), v2)")); |
| }; |
| |
| TEST_F(DebugShaderPrecisionTest, FunctionCallParameterQualifiersFromPrototype) |
| { |
| const std::string &shaderString = |
| "precision mediump float;\n" |
| "uniform vec4 u1;\n" |
| "uniform vec4 u2;\n" |
| "uniform vec4 u3;\n" |
| "uniform vec4 u4;\n" |
| "uniform vec4 u5;\n" |
| "vec4 add(in vec4 x, in vec4 y);\n" |
| "void compound_add(inout vec4 x, in vec4 y);\n" |
| "void add_to_last(in vec4 x, in vec4 y, out vec4 z);\n" |
| "void main() {\n" |
| " vec4 v = add(u1, u2);\n" |
| " compound_add(v, u3);\n" |
| " vec4 v2;\n" |
| " add_to_last(u4, u5, v2);\n" |
| " gl_FragColor = v + v2;\n" |
| "}\n" |
| "vec4 add(in vec4 x, in vec4 y) {\n" |
| " return x + y;\n" |
| "}\n" |
| "void compound_add(inout vec4 x, in vec4 y) {\n" |
| " x = x + y;\n" |
| "}\n" |
| "void add_to_last(in vec4 x, in vec4 y, out vec4 z) {\n" |
| " z = x + y;\n" |
| "}\n"; |
| compile(shaderString); |
| // Test in parameters |
| ASSERT_TRUE(foundInCode("v = add(angle_frm(u1), angle_frm(u2))")); |
| // Test inout parameter |
| ASSERT_TRUE(foundInCode("compound_add(v, angle_frm(u3))")); |
| // Test out parameter |
| ASSERT_TRUE(foundInCode("add_to_last(angle_frm(u4), angle_frm(u5), v2)")); |
| }; |
| |
| TEST_F(DebugShaderPrecisionTest, NestedFunctionCalls) |
| { |
| const std::string &shaderString = |
| "precision mediump float;\n" |
| "uniform vec4 u1;\n" |
| "uniform vec4 u2;\n" |
| "uniform vec4 u3;\n" |
| "vec4 add(in vec4 x, in vec4 y) {\n" |
| " return x + y;\n" |
| "}\n" |
| "vec4 compound_add(inout vec4 x, in vec4 y) {\n" |
| " x = x + y;\n" |
| " return x;\n" |
| "}\n" |
| "void main() {\n" |
| " vec4 v = u1;\n" |
| " vec4 v2 = add(compound_add(v, u2), fract(u3));\n" |
| " gl_FragColor = v + v2;\n" |
| "}\n"; |
| compile(shaderString); |
| // Test nested calls |
| ASSERT_TRUE(foundInCode("v2 = add(compound_add(v, angle_frm(u2)), angle_frm(fract(angle_frm(u3))))")); |
| }; |
