1 // Copyright 2017 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 #ifndef DAWNNATIVE_OPENGL_SAMPLERGL_H_ 16 #define DAWNNATIVE_OPENGL_SAMPLERGL_H_ 17 18 #include "dawn_native/Sampler.h" 19 20 #include "dawn_native/opengl/opengl_platform.h" 21 22 namespace dawn_native { namespace opengl { 23 24 class Device; 25 26 class Sampler final : public SamplerBase { 27 public: 28 Sampler(Device* device, const SamplerDescriptor* descriptor); 29 30 GLuint GetFilteringHandle() const; 31 GLuint GetNonFilteringHandle() const; 32 33 private: 34 ~Sampler() override; 35 void DestroyImpl() override; 36 37 void SetupGLSampler(GLuint sampler, const SamplerDescriptor* descriptor, bool forceNearest); 38 39 GLuint mFilteringHandle; 40 41 // This is a sampler equivalent to mFilteringHandle except that it uses NEAREST filtering 42 // for everything, which is important to preserve texture completeness for u/int textures. 43 GLuint mNonFilteringHandle; 44 }; 45 46 }} // namespace dawn_native::opengl 47 48 #endif // DAWNNATIVE_OPENGL_SAMPLERGL_H_ 49