mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-08 20:47:44 +00:00
74 lines
1.9 KiB
C++
74 lines
1.9 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#ifndef AndroidGraphicBuffer_h_
|
|
#define AndroidGraphicBuffer_h_
|
|
|
|
#include "gfxTypes.h"
|
|
|
|
typedef void* EGLImageKHR;
|
|
typedef void* EGLClientBuffer;
|
|
|
|
struct nsIntRect;
|
|
|
|
namespace mozilla {
|
|
|
|
/**
|
|
* This class allows access to Android's direct texturing mechanism. Locking
|
|
* the buffer gives you a pointer you can read/write to directly. It is fully
|
|
* threadsafe, but you probably really want to use the AndroidDirectTexture
|
|
* class which will handle double buffering.
|
|
*
|
|
* In order to use the buffer in OpenGL, just call Bind() and it will attach
|
|
* to whatever texture is bound to GL_TEXTURE_2D.
|
|
*/
|
|
class AndroidGraphicBuffer
|
|
{
|
|
public:
|
|
enum {
|
|
UsageSoftwareRead = 1,
|
|
UsageSoftwareWrite = 1 << 1,
|
|
UsageTexture = 1 << 2,
|
|
UsageTarget = 1 << 3,
|
|
Usage2D = 1 << 4
|
|
};
|
|
|
|
AndroidGraphicBuffer(uint32_t width, uint32_t height, uint32_t usage, gfxImageFormat format);
|
|
virtual ~AndroidGraphicBuffer();
|
|
|
|
int Lock(uint32_t usage, unsigned char **bits);
|
|
int Lock(uint32_t usage, const nsIntRect& rect, unsigned char **bits);
|
|
int Unlock();
|
|
bool Reallocate(uint32_t aWidth, uint32_t aHeight, gfxImageFormat aFormat);
|
|
|
|
uint32_t Width() { return mWidth; }
|
|
uint32_t Height() { return mHeight; }
|
|
|
|
bool Bind();
|
|
|
|
static bool IsBlacklisted();
|
|
|
|
private:
|
|
uint32_t mWidth;
|
|
uint32_t mHeight;
|
|
uint32_t mUsage;
|
|
gfxImageFormat mFormat;
|
|
|
|
bool EnsureInitialized();
|
|
bool EnsureEGLImage();
|
|
|
|
void DestroyBuffer();
|
|
bool EnsureBufferCreated();
|
|
|
|
uint32_t GetAndroidUsage(uint32_t aUsage);
|
|
uint32_t GetAndroidFormat(gfxImageFormat aFormat);
|
|
|
|
void *mHandle;
|
|
void *mEGLImage;
|
|
};
|
|
|
|
} /* mozilla */
|
|
#endif /* AndroidGraphicBuffer_h_ */
|