70 lines
2.6 KiB
Python
70 lines
2.6 KiB
Python
# Copyright 2019 The Shaderc Authors. All rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import expect
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from glslc_test_framework import inside_glslc_testsuite
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from placeholder import FileShader
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# A GLSL shader using the clamp, max, and min builtin functions.
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GLSL_FRAG_SHADER_WITH_CLAMP = """#version 450
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layout(location=0) in vec4 i;
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layout(location=0) out vec4 o;
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void main() {
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o = clamp(i, vec4(0.5), vec4(1.0))
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+ max(i, vec4(0.5))
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+ min(i, vec4(0.5));
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}
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"""
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@inside_glslc_testsuite('OptionFNanClamp')
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class TestClampMapsToFClampByDefault(expect.ValidAssemblyFileWithSubstr):
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shader = FileShader(GLSL_FRAG_SHADER_WITH_CLAMP, '.frag')
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glslc_args = ['-S', shader]
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expected_assembly_substr = 'OpExtInst %v4float %1 FClamp'
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@inside_glslc_testsuite('OptionFNanClamp')
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class TestMaxMapsToFMaxByDefault(expect.ValidAssemblyFileWithSubstr):
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shader = FileShader(GLSL_FRAG_SHADER_WITH_CLAMP, '.frag')
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glslc_args = ['-S', shader]
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expected_assembly_substr = 'OpExtInst %v4float %1 FMax'
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@inside_glslc_testsuite('OptionFNanClamp')
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class TestMinMapsToFMinByDefault(expect.ValidAssemblyFileWithSubstr):
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shader = FileShader(GLSL_FRAG_SHADER_WITH_CLAMP, '.frag')
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glslc_args = ['-S', shader]
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expected_assembly_substr = 'OpExtInst %v4float %1 FMin'
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@inside_glslc_testsuite('OptionFNanClamp')
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class TestClampMapsToNClampWithFlag(expect.ValidAssemblyFileWithSubstr):
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shader = FileShader(GLSL_FRAG_SHADER_WITH_CLAMP, '.frag')
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glslc_args = ['-S', '-fnan-clamp', shader]
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expected_assembly_substr = 'OpExtInst %v4float %1 NClamp'
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@inside_glslc_testsuite('OptionFNanClamp')
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class TestMaxMapsToNMaxWithFlag(expect.ValidAssemblyFileWithSubstr):
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shader = FileShader(GLSL_FRAG_SHADER_WITH_CLAMP, '.frag')
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glslc_args = ['-S', '-fnan-clamp', shader]
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expected_assembly_substr = 'OpExtInst %v4float %1 NMax'
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@inside_glslc_testsuite('OptionFNanClamp')
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class TestMinMapsToNMinWithFlag(expect.ValidAssemblyFileWithSubstr):
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shader = FileShader(GLSL_FRAG_SHADER_WITH_CLAMP, '.frag')
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glslc_args = ['-S', '-fnan-clamp', shader]
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expected_assembly_substr = 'OpExtInst %v4float %1 NMin'
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