tint->dawn: Move src/dawn_native -> src/dawn/native

Bug: dawn:1275
Change-Id: Ic60a00107a015bc677ff929c492f1085ffc38482
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/79083
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Ben Clayton <bclayton@chromium.org>

src/dawn/native/opengl/PipelineGL.h

@@ -0,0 +1,69 @@
+// Copyright 2017 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.
+
+#ifndef DAWNNATIVE_OPENGL_PIPELINEGL_H_
+#define DAWNNATIVE_OPENGL_PIPELINEGL_H_
+
+#include "dawn/native/Pipeline.h"
+
+#include "dawn/native/PerStage.h"
+#include "dawn/native/opengl/opengl_platform.h"
+
+#include <vector>
+
+namespace dawn::native {
+    struct ProgrammableStage;
+}  // namespace dawn::native
+
+namespace dawn::native::opengl {
+
+    struct OpenGLFunctions;
+    class PipelineLayout;
+    class Sampler;
+
+    class PipelineGL {
+      public:
+        PipelineGL();
+        ~PipelineGL();
+
+        // For each unit a sampler is bound to we need to know if we should use filtering or not
+        // because int and uint texture are only complete without filtering.
+        struct SamplerUnit {
+            GLuint unit;
+            bool shouldUseFiltering;
+        };
+        const std::vector<SamplerUnit>& GetTextureUnitsForSampler(GLuint index) const;
+        const std::vector<GLuint>& GetTextureUnitsForTextureView(GLuint index) const;
+        GLuint GetProgramHandle() const;
+
+      protected:
+        void ApplyNow(const OpenGLFunctions& gl);
+        MaybeError InitializeBase(const OpenGLFunctions& gl,
+                                  const PipelineLayout* layout,
+                                  const PerStage<ProgrammableStage>& stages);
+        void DeleteProgram(const OpenGLFunctions& gl);
+
+      private:
+        GLuint mProgram;
+        std::vector<std::vector<SamplerUnit>> mUnitsForSamplers;
+        std::vector<std::vector<GLuint>> mUnitsForTextures;
+        std::vector<GLuint> mDummySamplerUnits;
+        // TODO(enga): This could live on the Device, or elsewhere, but currently it makes Device
+        // destruction complex as it requires the sampler to be destroyed before the sampler cache.
+        Ref<Sampler> mDummySampler;
+    };
+
+}  // namespace dawn::native::opengl
+
+#endif  // DAWNNATIVE_OPENGL_PIPELINEGL_H_