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// Copyright 2019 The Dawn Authors
//
// 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.
#include "dawn_native/opengl/UtilsGL.h"
#include "common/Assert.h"
namespace dawn_native { namespace opengl {
GLuint ToOpenGLCompareFunction(wgpu::CompareFunction compareFunction) {
switch (compareFunction) {
case wgpu::CompareFunction::Never:
return GL_NEVER;
case wgpu::CompareFunction::Less:
return GL_LESS;
case wgpu::CompareFunction::LessEqual:
return GL_LEQUAL;
case wgpu::CompareFunction::Greater:
return GL_GREATER;
case wgpu::CompareFunction::GreaterEqual:
return GL_GEQUAL;
case wgpu::CompareFunction::NotEqual:
return GL_NOTEQUAL;
case wgpu::CompareFunction::Equal:
return GL_EQUAL;
case wgpu::CompareFunction::Always:
return GL_ALWAYS;
case wgpu::CompareFunction::Undefined:
break;
}
UNREACHABLE();
}
GLint GetStencilMaskFromStencilFormat(wgpu::TextureFormat depthStencilFormat) {
switch (depthStencilFormat) {
case wgpu::TextureFormat::Depth24PlusStencil8:
return 0xFF;
default:
UNREACHABLE();
}
}
}} // namespace dawn_native::opengl