1 // Copyright 2019 The Dawn Authors 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #include "dawn_native/opengl/UtilsGL.h" 16 17 #include "common/Assert.h" 18 19 namespace dawn_native { namespace opengl { 20 ToOpenGLCompareFunction(wgpu::CompareFunction compareFunction)21 GLuint ToOpenGLCompareFunction(wgpu::CompareFunction compareFunction) { 22 switch (compareFunction) { 23 case wgpu::CompareFunction::Never: 24 return GL_NEVER; 25 case wgpu::CompareFunction::Less: 26 return GL_LESS; 27 case wgpu::CompareFunction::LessEqual: 28 return GL_LEQUAL; 29 case wgpu::CompareFunction::Greater: 30 return GL_GREATER; 31 case wgpu::CompareFunction::GreaterEqual: 32 return GL_GEQUAL; 33 case wgpu::CompareFunction::NotEqual: 34 return GL_NOTEQUAL; 35 case wgpu::CompareFunction::Equal: 36 return GL_EQUAL; 37 case wgpu::CompareFunction::Always: 38 return GL_ALWAYS; 39 40 case wgpu::CompareFunction::Undefined: 41 break; 42 } 43 UNREACHABLE(); 44 } 45 GetStencilMaskFromStencilFormat(wgpu::TextureFormat depthStencilFormat)46 GLint GetStencilMaskFromStencilFormat(wgpu::TextureFormat depthStencilFormat) { 47 switch (depthStencilFormat) { 48 case wgpu::TextureFormat::Depth24PlusStencil8: 49 return 0xFF; 50 51 default: 52 UNREACHABLE(); 53 } 54 } 55 }} // namespace dawn_native::opengl 56