Initial Contribution

1 files changed, 85 insertions, 0 deletions

diff --git a/opengl/libagl/BufferObjectManager.h b/opengl/libagl/BufferObjectManager.h
new file mode 100644
index 0000000..9e9340a
--- /dev/null
+++ b/opengl/libagl/BufferObjectManager.h
@@ -0,0 +1,85 @@
+/*
+ **
+ ** Copyright 2006, 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_OPENGLES_BUFFER_OBJECT_MANAGER_H
+#define ANDROID_OPENGLES_BUFFER_OBJECT_MANAGER_H
+
+#include <stdint.h>
+#include <stddef.h>
+#include <sys/types.h>
+
+#include <utils/Atomic.h>
+#include <utils/RefBase.h>
+#include <utils/KeyedVector.h>
+#include <utils/Errors.h>
+
+#include <GLES/gl.h>
+
+#include "Tokenizer.h"
+#include "TokenManager.h"
+
+
+namespace android {
+
+// ----------------------------------------------------------------------------
+
+namespace gl {
+
+struct buffer_t {
+    GLsizeiptr      size;
+    GLenum          usage;
+    uint8_t*        data;
+    uint32_t        name;
+};
+
+};
+
+class EGLBufferObjectManager : public TokenManager
+{
+public:
+    EGLBufferObjectManager();
+    ~EGLBufferObjectManager();
+
+    // protocol for sp<>
+    inline  void    incStrong(const void* id) const;
+    inline  void    decStrong(const void* id) const;
+    typedef void    weakref_type;
+
+    gl::buffer_t const* bind(GLuint buffer);
+    int                 allocateStore(gl::buffer_t* bo, GLsizeiptr size, GLenum usage);
+    void                deleteBuffers(GLsizei n, const GLuint* buffers);
+
+private:
+    mutable volatile int32_t            mCount;
+    mutable Mutex                       mLock;
+    KeyedVector<GLuint, gl::buffer_t*>  mBuffers;
+};
+
+void EGLBufferObjectManager::incStrong(const void* id) const {
+    android_atomic_inc(&mCount);
+}
+void EGLBufferObjectManager::decStrong(const void* id) const {
+    if (android_atomic_dec(&mCount) == 1) {
+        delete this;
+    }
+}
+
+// ----------------------------------------------------------------------------
+}; // namespace android
+
+#endif // ANDROID_OPENGLES_BUFFER_OBJECT_MANAGER_H
+