TEST_F(TypeTrackingTest, PackResultTypeAndPrecision)
{
// ESSL 3.0 spec section 8.4: pack functions have predefined precision highp
const std::string &shaderString =
"#version 300 es\n"
"precision mediump float;\n"
"precision mediump int;\n"
"uniform vec2 uv;\n"
"out vec4 my_FragColor;\n"
"void main() {\n"
" uint u0 = packSnorm2x16(uv);\n"
" uint u1 = packUnorm2x16(uv);\n"
" uint u2 = packHalf2x16(uv);\n"
" if (u0 + u1 + u2 > 100u) {\n"
" my_FragColor = vec4(0.0, 1.0, 0.0, 1.0);\n"
" } else {\n"
" my_FragColor = vec4(1.0, 0.0, 0.0, 1.0);\n"
" }\n"
"}\n";
compile(shaderString);
ASSERT_FALSE(foundErrorInIntermediateTree());
ASSERT_TRUE(foundInIntermediateTree("pack Snorm 2x16 (highp uint)"));
ASSERT_TRUE(foundInIntermediateTree("pack Unorm 2x16 (highp uint)"));
ASSERT_TRUE(foundInIntermediateTree("pack half 2x16 (highp uint)"));
}
TEST_F(TypeTrackingTest, BuiltInBoolFunctionResultType)
{
const std::string &shaderString =
"uniform bvec4 bees;\n"
"void main() {\n"
" bool b = any(bees);\n"
" bool c = all(bees);\n"
" bvec4 d = not(bees);\n"
" gl_FragColor = vec4(b ? 1.0 : 0.0, c ? 1.0 : 0.0, d.x ? 1.0 : 0.0, 1.0);\n"
"}\n";
compile(shaderString);
ASSERT_TRUE(foundInIntermediateTree("any (bool)"));
ASSERT_TRUE(foundInIntermediateTree("all (bool)"));
ASSERT_TRUE(foundInIntermediateTree("Negate conditional (4-component vector of bool)"));
};
TEST_F(TypeTrackingTest, BuiltInAbsSignFunctionFloatResultTypeAndPrecision)
{
const std::string &shaderString =
"precision mediump float;\n"
"uniform float fval1;\n"
"void main() {\n"
" float fval2 = abs(fval1);\n"
" float fval3 = sign(fval1);\n"
" gl_FragColor = vec4(fval1, 0.0, 0.0, 1.0); \n"
"}\n";
compile(shaderString);
ASSERT_FALSE(foundErrorInIntermediateTree());
ASSERT_TRUE(foundInIntermediateTree("Absolute value (mediump float)"));
ASSERT_TRUE(foundInIntermediateTree("Sign (mediump float)"));
}
TEST_F(TypeTrackingTest, BuiltInFunctionChoosesHigherPrecision)
{
const std::string &shaderString =
"precision lowp float;\n"
"uniform mediump vec2 a;\n"
"uniform lowp vec2 b;\n"
"void main() {\n"
" float c = dot(a, b);\n"
" float d = distance(b, a);\n"
" gl_FragColor = vec4(c, d, 0.0, 1.0);\n"
"}\n";
compile(shaderString);
ASSERT_TRUE(foundInIntermediateTree("dot-product (mediump float)"));
ASSERT_TRUE(foundInIntermediateTree("distance (mediump float)"));
};
TEST_F(TypeTrackingTest, BuiltInVecFunctionResultTypeAndPrecision)
{
const std::string &shaderString =
"precision mediump float;\n"
"uniform vec2 a;\n"
"void main() {\n"
" float b = length(a);\n"
" float c = dot(a, vec2(0.5));\n"
" float d = distance(vec2(0.5), a);\n"
" gl_FragColor = vec4(b, c, d, 1.0);\n"
"}\n";
compile(shaderString);
ASSERT_TRUE(foundInIntermediateTree("length (mediump float)"));
ASSERT_TRUE(foundInIntermediateTree("dot-product (mediump float)"));
ASSERT_TRUE(foundInIntermediateTree("distance (mediump float)"));
};
TEST_F(TypeTrackingTest, FunctionPrototypeMangling)
{
const std::string &shaderString =
"precision mediump float;\n"
"float fun(float a);\n"
"uniform float f;\n"
"void main() {\n"
" float ff = fun(f);\n"
" gl_FragColor = vec4(ff);\n"
"}\n"
"float fun(float a) {\n"
" return a * 2.0;\n"
"}\n";
compile(shaderString);
ASSERT_TRUE(foundInIntermediateTree("Function Prototype: fun(f1;"));
ASSERT_TRUE(foundInIntermediateTree("Function Definition: fun(f1;"));
};
TEST_F(TypeTrackingTest, BuiltInVecToBoolFunctionResultType)
{
const std::string &shaderString =
"precision mediump float;\n"
"uniform vec2 apples;\n"
"uniform vec2 oranges;\n"
"uniform ivec2 foo;\n"
"uniform ivec2 bar;\n"
"void main() {\n"
" bvec2 a = lessThan(apples, oranges);\n"
" bvec2 b = greaterThan(foo, bar);\n"
" gl_FragColor = vec4(any(a) ? 1.0 : 0.0, any(b) ? 1.0 : 0.0, 0.0, 1.0);\n"
"}\n";
compile(shaderString);
ASSERT_TRUE(foundInIntermediateTree("Less Than (2-component vector of bool)"));
ASSERT_TRUE(foundInIntermediateTree("Greater Than (2-component vector of bool)"));
};
TEST_F(TypeTrackingTest, BuiltInAbsSignFunctionIntResultTypeAndPrecision)
{
const std::string &shaderString =
"#version 300 es\n"
"precision mediump float;\n"
"precision mediump int;\n"
"uniform int ival1;\n"
"out vec4 my_FragColor;\n"
"void main() {\n"
" int ival2 = abs(ival1);\n"
" int ival3 = sign(ival1);\n"
" my_FragColor = vec4(0.0, 0.0, 0.0, 1.0); \n"
"}\n";
compile(shaderString);
ASSERT_FALSE(foundErrorInIntermediateTree());
ASSERT_TRUE(foundInIntermediateTree("Absolute value (mediump int)"));
ASSERT_TRUE(foundInIntermediateTree("Sign (mediump int)"));
}
TEST_F(TypeTrackingTest, BuiltInFloatBitsToIntResultTypeAndPrecision)
{
// ESSL 3.00 section 8.3: floatBitsTo(U)int returns a highp value.
const std::string &shaderString =
"#version 300 es\n"
"precision mediump float;\n"
"precision mediump int;\n"
"uniform float f;\n"
"out vec4 my_FragColor;\n"
"void main() {\n"
" int i = floatBitsToInt(f);\n"
" uint u = floatBitsToUint(f);\n"
" my_FragColor = vec4(0.0, 0.0, 0.0, 1.0); \n"
"}\n";
compile(shaderString);
ASSERT_FALSE(foundErrorInIntermediateTree());
ASSERT_TRUE(foundInIntermediateTree("float bits to int (highp int)"));
ASSERT_TRUE(foundInIntermediateTree("float bits to uint (highp uint)"));
}
TEST_F(TypeTrackingTest, BuiltInIntBitsToFloatResultTypeAndPrecision)
{
// ESSL 3.00 section 8.3: (u)intBitsToFloat returns a highp value.
const std::string &shaderString =
"#version 300 es\n"
"precision mediump float;\n"
"precision mediump int;\n"
"uniform int i;\n"
"uniform uint u;\n"
"out vec4 my_FragColor;\n"
"void main() {\n"
" float f1 = intBitsToFloat(i);\n"
" float f2 = uintBitsToFloat(u);\n"
" my_FragColor = vec4(f1, f2, 0.0, 1.0); \n"
"}\n";
compile(shaderString);
ASSERT_FALSE(foundErrorInIntermediateTree());
ASSERT_TRUE(foundInIntermediateTree("int bits to float (highp float)"));
ASSERT_TRUE(foundInIntermediateTree("uint bits to float (highp float)"));
}
TEST_F(TypeTrackingTest, BuiltInFunctionResultPrecision)
{
const std::string &shaderString =
"precision mediump float;\n"
"uniform float f;\n"
"void main() {\n"
" float ff = sin(f);\n"
" gl_FragColor = vec4(ff);\n"
"}\n";
compile(shaderString);
ASSERT_TRUE(foundInIntermediateTree("sine (mediump float)"));
};
TEST_F(TypeTrackingTest, BinaryMathResultPrecision)
{
const std::string &shaderString =
"precision mediump float;\n"
"uniform float f;\n"
"void main() {\n"
" float ff = f * 0.5;\n"
" gl_FragColor = vec4(ff);\n"
"}\n";
compile(shaderString);
ASSERT_TRUE(foundInIntermediateTree("multiply (mediump float)"));
};
TEST_F(TypeTrackingTest, BuiltInMatFunctionResultTypeAndPrecision)
{
const std::string &shaderString =
"#version 300 es\n"
"precision mediump float;\n"
"out vec4 my_FragColor;\n"
"uniform mat4 m;\n"
"void main() {\n"
" mat3x2 tmp32 = mat3x2(m);\n"
" mat2x3 tmp23 = mat2x3(m);\n"
" mat4x2 tmp42 = mat4x2(m);\n"
" mat2x4 tmp24 = mat2x4(m);\n"
" mat4x3 tmp43 = mat4x3(m);\n"
" mat3x4 tmp34 = mat3x4(m);\n"
" my_FragColor = vec4(tmp32[2][1] * tmp23[1][2], tmp42[3][1] * tmp24[1][3], tmp43[3][2] * tmp34[2][3], 1.0);\n"
"}\n";
compile(shaderString);
ASSERT_FALSE(foundErrorInIntermediateTree());
ASSERT_TRUE(foundInIntermediateTree("Construct mat2x3 (mediump 2X3 matrix of float)"));
ASSERT_TRUE(foundInIntermediateTree("Construct mat3x2 (mediump 3X2 matrix of float)"));
ASSERT_TRUE(foundInIntermediateTree("Construct mat2x4 (mediump 2X4 matrix of float)"));
ASSERT_TRUE(foundInIntermediateTree("Construct mat4x2 (mediump 4X2 matrix of float)"));
ASSERT_TRUE(foundInIntermediateTree("Construct mat3x4 (mediump 3X4 matrix of float)"));
ASSERT_TRUE(foundInIntermediateTree("Construct mat4x3 (mediump 4X3 matrix of float)"));
}
TEST_F(TypeTrackingTest, StructConstructorResultNoPrecision)
{
const std::string &shaderString =
"precision mediump float;\n"
"uniform vec4 u1;\n"
"uniform vec4 u2;\n"
"struct S { highp vec4 a; highp vec4 b; };\n"
"void main() {\n"
" S s = S(u1, u2);\n"
" gl_FragColor = s.a;\n"
"}\n";
compile(shaderString);
ASSERT_TRUE(foundInIntermediateTree("Construct structure (structure)"));
};
TEST_F(TypeTrackingTest, UnpackNormResultTypeAndPrecision)
{
// ESSL 3.0 spec section 8.4: unpack(S/U)norm2x16 has predefined precision highp
const std::string &shaderString =
"#version 300 es\n"
"precision mediump float;\n"
"precision mediump int;\n"
"uniform uint uu;\n"
"out vec4 my_FragColor;\n"
"void main() {\n"
" vec2 v0 = unpackSnorm2x16(uu);\n"
" vec2 v1 = unpackUnorm2x16(uu);\n"
" if (v0.x * v1.x > 1.0) {\n"
" my_FragColor = vec4(0.0, 1.0, 0.0, 1.0);\n"
" } else {\n"
" my_FragColor = vec4(1.0, 0.0, 0.0, 1.0);\n"
" }\n"
"}\n";
compile(shaderString);
ASSERT_FALSE(foundErrorInIntermediateTree());
ASSERT_TRUE(foundInIntermediateTree("unpack Snorm 2x16 (highp 2-component vector of float)"));
ASSERT_TRUE(foundInIntermediateTree("unpack Unorm 2x16 (highp 2-component vector of float)"));
}
TEST_F(TypeTrackingTest, TextureCubeResultTypeAndPrecision)
{
// ESSL spec section 4.5.3: sampler2D and samplerCube are lowp by default
// ESSL spec section 8: For the texture functions, the precision of the return type matches the precision of the sampler type.
const std::string &shaderString =
"precision mediump float;\n"
"uniform samplerCube sc;\n"
"uniform vec3 a;\n"
"void main() {\n"
" vec4 c = textureCube(sc, a);\n"
" gl_FragColor = c;\n"
"}\n";
compile(shaderString);
ASSERT_TRUE(foundInIntermediateTree("textureCube(sC1;vf3; (lowp 4-component vector of float)"));
};
TEST_F(TypeTrackingTest, BuiltInConstructorResultTypeAndPrecision)
{
const std::string &shaderString =
"precision mediump float;\n"
"uniform float u1;\n"
"uniform float u2;\n"
"uniform float u3;\n"
"uniform float u4;\n"
"void main() {\n"
" vec4 a = vec4(u1, u2, u3, u4);\n"
" gl_FragColor = a;\n"
"}\n";
compile(shaderString);
ASSERT_TRUE(foundInIntermediateTree("Construct vec4 (mediump 4-component vector of float)"));
};
TEST_F(TypeTrackingTest, TextureSizeResultTypeAndPrecision)
{
// ESSL 3.0 spec section 8: textureSize has predefined precision highp
const std::string &shaderString =
"#version 300 es\n"
"precision mediump float;\n"
"out vec4 my_FragColor;\n"
"uniform sampler2D s;\n"
"void main() {\n"
" ivec2 size = textureSize(s, 0);\n"
" if (size.x > 100) {\n"
" my_FragColor = vec4(0.0, 1.0, 0.0, 1.0);\n"
" } else {\n"
" my_FragColor = vec4(1.0, 0.0, 0.0, 1.0);\n"
" }\n"
"}\n";
compile(shaderString);
ASSERT_TRUE(foundInIntermediateTree("textureSize(s21;i1; (highp 2-component vector of int)"));
};
bool foundErrorInIntermediateTree() const
{
return foundInIntermediateTree("ERROR:");
}
