refactor EGL source code

no changes is functionality. split various objects into their own files.
make egl_display objec's lock internal.

1 files changed, 202 insertions, 0 deletions

diff --git a/opengl/libs/EGL/egl_object.h b/opengl/libs/EGL/egl_object.h
new file mode 100644
index 0000000..ecb2514
--- /dev/null
+++ b/opengl/libs/EGL/egl_object.h
@@ -0,0 +1,202 @@
+/* 
+ ** Copyright 2007, 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_OBJECT_H
+#define ANDROID_EGL_OBJECT_H
+
+
+#include <ctype.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+#include <EGL/egl.h>
+#include <EGL/eglext.h>
+#include <GLES/gl.h>
+#include <GLES/glext.h>
+
+#include <utils/threads.h>
+
+#include <system/window.h>
+
+#include "egl_display.h"
+
+// ----------------------------------------------------------------------------
+namespace android {
+// ----------------------------------------------------------------------------
+
+struct egl_display_t;
+
+class egl_object_t {
+    egl_display_t *display;
+    volatile int32_t  terminated;
+    mutable volatile int32_t count;
+
+public:
+    egl_object_t(egl_display_t* display);
+
+    inline bool isAlive() const { return !terminated; }
+    inline int32_t incRef() { return android_atomic_inc(&count); }
+    inline int32_t decRef() { return android_atomic_dec(&count); }
+
+private:
+    bool get();
+    bool put();
+
+public:
+    template <typename N, typename T>
+    struct LocalRef {
+        N* ref;
+        LocalRef(T o) : ref(0) {
+            N* native = reinterpret_cast<N*>(o);
+            if (o && native->get()) {
+                ref = native;
+            }
+        }
+        ~LocalRef() {
+            if (ref && ref->put()) {
+                delete ref;
+            }
+        }
+        inline N* get() {
+            return ref;
+        }
+        void acquire() const {
+            if (ref) {
+                android_atomic_inc(&ref->count);
+            }
+        }
+        void release() const {
+            if (ref) {
+                int32_t c = android_atomic_dec(&ref->count);
+                // ref->count cannot be 1 prior atomic_dec because we have
+                // a reference, and if we have one, it means there was
+                // already one before us.
+                LOGE_IF(c==1, "refcount is now 0 in release()");
+            }
+        }
+        void terminate() {
+            if (ref) {
+                ref->terminated = 1;
+                release();
+            }
+        }
+    };
+};
+
+// ----------------------------------------------------------------------------
+
+struct egl_surface_t: public egl_object_t {
+    typedef egl_object_t::LocalRef<egl_surface_t, EGLSurface> Ref;
+
+    egl_surface_t(EGLDisplay dpy, EGLConfig config, EGLNativeWindowType win,
+            EGLSurface surface, int impl, egl_connection_t const* cnx) :
+        egl_object_t(get_display(dpy)), dpy(dpy), surface(surface),
+                config(config), win(win), impl(impl), cnx(cnx) {
+    }
+    ~egl_surface_t() {
+    }
+    EGLDisplay dpy;
+    EGLSurface surface;
+    EGLConfig config;
+    sp<ANativeWindow> win;
+    int impl;
+    egl_connection_t const* cnx;
+};
+
+struct egl_context_t: public egl_object_t {
+    typedef egl_object_t::LocalRef<egl_context_t, EGLContext> Ref;
+
+    egl_context_t(EGLDisplay dpy, EGLContext context, EGLConfig config,
+            int impl, egl_connection_t const* cnx, int version) :
+        egl_object_t(get_display(dpy)), dpy(dpy), context(context),
+                config(config), read(0), draw(0), impl(impl), cnx(cnx),
+                version(version) {
+    }
+    ~egl_context_t() {
+    }
+    EGLDisplay dpy;
+    EGLContext context;
+    EGLConfig config;
+    EGLSurface read;
+    EGLSurface draw;
+    int impl;
+    egl_connection_t const* cnx;
+    int version;
+};
+
+struct egl_image_t: public egl_object_t {
+    typedef egl_object_t::LocalRef<egl_image_t, EGLImageKHR> Ref;
+
+    egl_image_t(EGLDisplay dpy, EGLContext context) :
+        egl_object_t(get_display(dpy)), dpy(dpy), context(context) {
+        memset(images, 0, sizeof(images));
+    }
+    EGLDisplay dpy;
+    EGLContext context;
+    EGLImageKHR images[IMPL_NUM_IMPLEMENTATIONS];
+};
+
+struct egl_sync_t: public egl_object_t {
+    typedef egl_object_t::LocalRef<egl_sync_t, EGLSyncKHR> Ref;
+
+    egl_sync_t(EGLDisplay dpy, EGLContext context, EGLSyncKHR sync) :
+        egl_object_t(get_display(dpy)), dpy(dpy), context(context), sync(sync) {
+    }
+    EGLDisplay dpy;
+    EGLContext context;
+    EGLSyncKHR sync;
+};
+
+// ----------------------------------------------------------------------------
+
+typedef egl_surface_t::Ref  SurfaceRef;
+typedef egl_context_t::Ref  ContextRef;
+typedef egl_image_t::Ref    ImageRef;
+typedef egl_sync_t::Ref     SyncRef;
+
+// ----------------------------------------------------------------------------
+
+template<typename NATIVE, typename EGL>
+static inline NATIVE* egl_to_native_cast(EGL arg) {
+    return reinterpret_cast<NATIVE*>(arg);
+}
+
+static inline
+egl_surface_t* get_surface(EGLSurface surface) {
+    return egl_to_native_cast<egl_surface_t>(surface);
+}
+
+static inline
+egl_context_t* get_context(EGLContext context) {
+    return egl_to_native_cast<egl_context_t>(context);
+}
+
+static inline
+egl_image_t* get_image(EGLImageKHR image) {
+    return egl_to_native_cast<egl_image_t>(image);
+}
+
+static inline
+egl_sync_t* get_sync(EGLSyncKHR sync) {
+    return egl_to_native_cast<egl_sync_t>(sync);
+}
+
+// ----------------------------------------------------------------------------
+}; // namespace android
+// ----------------------------------------------------------------------------
+
+#endif // ANDROID_EGL_OBJECT_H
+