From 9db3d07b9620b4269ab33f78604a36327e536ce1 Mon Sep 17 00:00:00 2001
From: Jean-Baptiste Queru <jbq@google.com>
Date: Thu, 12 Nov 2009 18:45:53 -0800
Subject: eclair snapshot

---
 include/ui/GraphicBuffer.h | 136 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 136 insertions(+)
 create mode 100644 include/ui/GraphicBuffer.h

(limited to 'include/ui/GraphicBuffer.h')

diff --git a/include/ui/GraphicBuffer.h b/include/ui/GraphicBuffer.h
new file mode 100644
index 000000000000..b9c491be1a6c
--- /dev/null
+++ b/include/ui/GraphicBuffer.h
@@ -0,0 +1,136 @@
+/*
+ * Copyright (C) 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_GRAPHIC_BUFFER_H
+#define ANDROID_GRAPHIC_BUFFER_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <ui/android_native_buffer.h>
+#include <ui/PixelFormat.h>
+#include <ui/Rect.h>
+#include <pixelflinger/pixelflinger.h>
+
+struct android_native_buffer_t;
+
+namespace android {
+
+class GraphicBufferMapper;
+class Parcel;
+
+// ===========================================================================
+// GraphicBuffer
+// ===========================================================================
+
+class GraphicBuffer
+    : public EGLNativeBase<
+        android_native_buffer_t, 
+        GraphicBuffer, 
+        LightRefBase<GraphicBuffer> >
+{
+public:
+
+    enum {
+        USAGE_SW_READ_NEVER     = GRALLOC_USAGE_SW_READ_NEVER,
+        USAGE_SW_READ_RARELY    = GRALLOC_USAGE_SW_READ_RARELY,
+        USAGE_SW_READ_OFTEN     = GRALLOC_USAGE_SW_READ_OFTEN,
+        USAGE_SW_READ_MASK      = GRALLOC_USAGE_SW_READ_MASK,
+        
+        USAGE_SW_WRITE_NEVER    = GRALLOC_USAGE_SW_WRITE_NEVER,
+        USAGE_SW_WRITE_RARELY   = GRALLOC_USAGE_SW_WRITE_RARELY,
+        USAGE_SW_WRITE_OFTEN    = GRALLOC_USAGE_SW_WRITE_OFTEN,
+        USAGE_SW_WRITE_MASK     = GRALLOC_USAGE_SW_WRITE_MASK,
+        
+        USAGE_SOFTWARE_MASK     = USAGE_SW_READ_MASK|USAGE_SW_WRITE_MASK,
+        
+        USAGE_HW_TEXTURE        = GRALLOC_USAGE_HW_TEXTURE,
+        USAGE_HW_RENDER         = GRALLOC_USAGE_HW_RENDER,
+        USAGE_HW_2D             = GRALLOC_USAGE_HW_2D,
+        USAGE_HW_MASK           = GRALLOC_USAGE_HW_MASK
+    };
+
+    GraphicBuffer();
+
+    // creates w * h buffer
+    GraphicBuffer(uint32_t w, uint32_t h, PixelFormat format, uint32_t usage);
+
+    // create a buffer from an existing handle
+    GraphicBuffer(uint32_t w, uint32_t h, PixelFormat format, uint32_t usage,
+            uint32_t stride, native_handle_t* handle, bool keepOwnership);
+
+    // return status
+    status_t initCheck() const;
+
+    uint32_t getWidth() const           { return width; }
+    uint32_t getHeight() const          { return height; }
+    uint32_t getStride() const          { return stride; }
+    uint32_t getUsage() const           { return usage; }
+    PixelFormat getPixelFormat() const  { return format; }
+    Rect getBounds() const              { return Rect(width, height); }
+    
+    status_t reallocate(uint32_t w, uint32_t h, PixelFormat f, uint32_t usage);
+
+    status_t lock(uint32_t usage, void** vaddr);
+    status_t lock(uint32_t usage, const Rect& rect, void** vaddr);
+    status_t lock(GGLSurface* surface, uint32_t usage);
+    status_t unlock();
+    
+    android_native_buffer_t* getNativeBuffer() const;
+    
+    void setIndex(int index);
+    int getIndex() const;
+    void setVerticalStride(uint32_t vstride);
+    uint32_t getVerticalStride() const;
+
+protected:
+    GraphicBuffer(const Parcel& reply);
+    virtual ~GraphicBuffer();
+
+    enum {
+        ownNone   = 0,
+        ownHandle = 1,
+        ownData   = 2,
+    };
+
+    inline const GraphicBufferMapper& getBufferMapper() const { return mBufferMapper; }
+    inline GraphicBufferMapper& getBufferMapper() { return mBufferMapper; }
+    uint8_t mOwner;
+
+private:
+    friend class Surface;
+    friend class BpSurface;
+    friend class BnSurface;
+    friend class LightRefBase<GraphicBuffer>;
+    GraphicBuffer(const GraphicBuffer& rhs);
+    GraphicBuffer& operator = (const GraphicBuffer& rhs);
+    const GraphicBuffer& operator = (const GraphicBuffer& rhs) const;
+
+    status_t initSize(uint32_t w, uint32_t h, PixelFormat format, 
+            uint32_t usage);
+
+    static status_t writeToParcel(Parcel* reply, 
+            android_native_buffer_t const* buffer);
+
+    GraphicBufferMapper& mBufferMapper;
+    ssize_t mInitCheck;
+    uint32_t mVStride;
+    int mIndex;
+};
+
+}; // namespace android
+
+#endif // ANDROID_GRAPHIC_BUFFER_H
-- 
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