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# Copyright 2015 The Shaderc Authors. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import expect
from glslc_test_framework import inside_glslc_testsuite
from placeholder import FileShader
def simple_vertex_shader():
return """#version 310 es
void main() {
gl_Position = vec4(1., 2., 3., 4.);
}"""
def simple_fragment_shader():
return """#version 310 es
void main() {
gl_FragDepth = 10.;
}"""
def simple_tessellation_control_shader():
return """#version 440 core
layout(vertices = 3) out;
void main() { }"""
def simple_tessellation_evaluation_shader():
return """#version 440 core
layout(triangles) in;
void main() { }"""
def simple_geometry_shader():
return """#version 150 core
layout (triangles) in;
layout (line_strip, max_vertices = 4) out;
void main() { }"""
def simple_compute_shader():
return """#version 310 es
void main() {
uvec3 temp = gl_WorkGroupID;
}"""
@inside_glslc_testsuite('OptionShaderStage')
class TestShaderStageWithGlslExtension(expect.ValidObjectFile):
"""Tests -fshader-stage with .glsl extension."""
shader = FileShader(simple_vertex_shader(), '.glsl')
glslc_args = ['-c', '-fshader-stage=vertex', shader]
@inside_glslc_testsuite('OptionShaderStage')
class TestShaderStageWithKnownExtension(expect.ValidObjectFile):
"""Tests -fshader-stage with known extension."""
shader = FileShader(simple_fragment_shader(), '.frag')
glslc_args = ['-c', '-fshader-stage=fragment', shader]
@inside_glslc_testsuite('OptionShaderStage')
class TestShaderStageWithUnknownExtension(expect.ValidObjectFile):
"""Tests -fshader-stage with unknown extension."""
shader = FileShader(simple_vertex_shader(), '.unknown')
glslc_args = ['-c', '-fshader-stage=vertex', shader]
@inside_glslc_testsuite('OptionShaderStage')
class TestShaderStageWithNoExtension(expect.ValidObjectFile):
"""Tests -fshader-stage with no extension."""
shader = FileShader(simple_vertex_shader(), '')
glslc_args = ['-c', '-fshader-stage=vertex', shader]
@inside_glslc_testsuite('OptionShaderStage')
class TestAllShaderStages(expect.ValidObjectFile):
"""Tests all possible -fshader-stage values."""
shader1 = FileShader(simple_vertex_shader(), '.glsl')
shader2 = FileShader(simple_fragment_shader(), '.glsl')
shader3 = FileShader(simple_tessellation_control_shader(), '.glsl')
shader4 = FileShader(simple_tessellation_evaluation_shader(), '.glsl')
shader5 = FileShader(simple_geometry_shader(), '.glsl')
shader6 = FileShader(simple_compute_shader(), '.glsl')
glslc_args = [
'-c',
'-fshader-stage=vertex', shader1,
'-fshader-stage=fragment', shader2,
'-fshader-stage=tesscontrol', shader3,
'-fshader-stage=tesseval', shader4,
'-fshader-stage=geometry', shader5,
'-fshader-stage=compute', shader6]
@inside_glslc_testsuite('OptionShaderStage')
class TestShaderStageOverwriteFileExtension(expect.ValidObjectFile):
"""Tests -fshader-stage has precedence over file extension."""
# a vertex shader camouflaged with .frag extension
shader = FileShader(simple_vertex_shader(), '.frag')
# Command line says it's vertex shader. Should compile successfully
# as a vertex shader.
glslc_args = ['-c', '-fshader-stage=vertex', shader]
@inside_glslc_testsuite('OptionShaderStage')
class TestShaderStageLatterOverwriteFormer(expect.ValidObjectFile):
"""Tests a latter -fshader-stage overwrite a former one."""
shader = FileShader(simple_vertex_shader(), '.glsl')
glslc_args = [
'-c', '-fshader-stage=fragment', '-fshader-stage=vertex', shader]
@inside_glslc_testsuite('OptionShaderStage')
class TestShaderStageWithMultipleFiles(expect.ValidObjectFile):
"""Tests -fshader-stage covers all subsequent files."""
shader1 = FileShader(simple_vertex_shader(), '.glsl')
# a vertex shader with .frag extension
shader2 = FileShader(simple_vertex_shader(), '.frag')
shader3 = FileShader(simple_vertex_shader(), '.a_vert_shader')
glslc_args = ['-c', '-fshader-stage=vertex', shader1, shader2, shader3]
@inside_glslc_testsuite('OptionShaderStage')
class TestShaderStageMultipleShaderStage(expect.ValidObjectFile):
"""Tests multiple -fshader-stage."""
shader1 = FileShader(simple_vertex_shader(), '.glsl')
shader2 = FileShader(simple_fragment_shader(), '.frag')
shader3 = FileShader(simple_vertex_shader(), '.a_vert_shader')
glslc_args = [
'-c',
'-fshader-stage=vertex', shader1,
'-fshader-stage=fragment', shader2,
'-fshader-stage=vertex', shader3]
@inside_glslc_testsuite('OptionShaderStage')
class TestFileExtensionBeforeShaderStage(expect.ValidObjectFile):
"""Tests that file extensions before -fshader-stage are not affected."""
# before -fshader-stage
shader1 = FileShader(simple_vertex_shader(), '.vert')
# after -fshader-stage
shader2 = FileShader(simple_fragment_shader(), '.frag')
shader3 = FileShader(simple_fragment_shader(), '.vert')
glslc_args = ['-c', shader1, '-fshader-stage=fragment', shader2, shader3]
@inside_glslc_testsuite('OptionShaderStage')
class TestShaderStageWrongShaderStageValue(expect.ErrorMessage):
"""Tests that wrong shader stage value results in an error."""
shader = FileShader(simple_vertex_shader(), '.glsl')
glslc_args = ['-c', '-fshader-stage=unknown', shader]
expected_error = ["glslc: error: stage not recognized: 'unknown'\n"]
@inside_glslc_testsuite('OptionShaderStage')
class TestShaderStageGlslExtensionMissingShaderStage(expect.ErrorMessage):
"""Tests that missing -fshader-stage for .glsl extension results in
an error."""
shader = FileShader(simple_vertex_shader(), '.glsl')
glslc_args = ['-c', shader]
expected_error = [
"glslc: error: '", shader,
"': .glsl file encountered but no -fshader-stage specified ahead\n"]
@inside_glslc_testsuite('OptionShaderStage')
class TestShaderStageUnknownExtensionMissingShaderStage(expect.ErrorMessage):
"""Tests that missing -fshader-stage for unknown extension results in
an error."""
shader = FileShader(simple_vertex_shader(), '.a_vert_shader')
glslc_args = ['-c', shader]
expected_error = [
"glslc: error: '", shader,
"': file not recognized: File format not recognized\n"]
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