Rootless Debug for GLES
Add the ability to enable debug layers for OpenGL ES.
This update concides with changes to framework/base to
control the enabling logic in GraphicsEnvironment.
Refer to go/rootless-gpu-debug-gles for design overview.
To learn more about creating GLES layers, refer to
https://developer.android.com/ndk/guides/
Test: cts-tradefed run singleCommand cts -m CtsGpuToolsHostTestCases
Bug: 110883880
Bug: 117515773
Change-Id: I0334cd9cd386f20bf40adac117e3144b0f76b7d3
diff --git a/opengl/libs/EGL/egl_layers.h b/opengl/libs/EGL/egl_layers.h
new file mode 100644
index 0000000..e401b44
--- /dev/null
+++ b/opengl/libs/EGL/egl_layers.h
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * 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 ANDROID_EGL_LAYERS_H
+#define ANDROID_EGL_LAYERS_H
+
+#include <string>
+#include <unordered_map>
+#include <vector>
+
+#include <EGL/egldefs.h>
+
+#include "egl_platform_entries.h"
+
+typedef __eglMustCastToProperFunctionPointerType EGLFuncPointer;
+
+namespace android {
+
+class LayerLoader {
+public:
+ static LayerLoader& getInstance();
+ ~LayerLoader(){};
+
+ typedef void* (*PFNEGLGETNEXTLAYERPROCADDRESSPROC)(void*, const char*);
+ typedef EGLFuncPointer (*layer_init_func)(
+ const void* layer_id, PFNEGLGETNEXTLAYERPROCADDRESSPROC get_next_layer_proc_address);
+ typedef EGLFuncPointer (*layer_setup_func)(const char* name, EGLFuncPointer next);
+
+ void LoadLayers();
+ void InitLayers(egl_connection_t*);
+ void LayerPlatformEntries(layer_setup_func layer_setup, EGLFuncPointer*, char const* const*);
+ void LayerDriverEntries(layer_setup_func layer_setup, EGLFuncPointer*, char const* const*);
+ bool Initialized();
+ std::string GetDebugLayers();
+
+ EGLFuncPointer GetGpaNext(unsigned i);
+ EGLFuncPointer ApplyLayer(layer_setup_func layer_setup, const char* name, EGLFuncPointer next);
+ EGLFuncPointer ApplyLayers(const char* name, EGLFuncPointer next);
+
+ std::vector<layer_init_func> layer_init_;
+ std::vector<layer_setup_func> layer_setup_;
+
+private:
+ LayerLoader() : layers_loaded_(false), initialized_(false), current_layer_(0){};
+ bool layers_loaded_;
+ bool initialized_;
+ unsigned current_layer_;
+};
+
+}; // namespace android
+
+#endif // ANDROID_EGL_LAYERS_H