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/* Copyright 2013 The Chromium Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file. */
#ifndef PPAPI_SIMPLE_PS_CONTEXT_2D_H_
#define PPAPI_SIMPLE_PS_CONTEXT_2D_H_
#include "ppapi/c/pp_resource.h"
#include "ppapi/c/ppb_graphics_2d.h"
#include "ppapi/c/ppb_image_data.h"
#include "ppapi_simple/ps_event.h"
#include "sdk_util/macros.h"
EXTERN_C_BEGIN
typedef struct {
int bound;
int32_t width;
int32_t height;
uint32_t stride;
uint32_t* data;
PP_ImageDataFormat format;
PP_Resource graphic_2d;
PP_Resource image;
} PSContext2D_t;
/*
* PSContext2DAllocate
*
* Allocate or free a 2D context object which the library can use to perform
* various PPAPI operations on the developer's behalf, such as processing view
* change events, swapping buffers, etc...
*/
PSContext2D_t* PSContext2DAllocate(PP_ImageDataFormat format);
void PSContext2DFree(PSContext2D_t* ctx);
/*
* PSContext2DGetNativeFormat
*
* Query the native system image format.
*/
PP_ImageDataFormat PSContext2DGetNativeImageDataFormat();
/*
* PSContext2DHandleEvent
*
* Updates the context such as allocating, freeing, or sizing graphics and
* image resources in response to events.
*/
int PSContext2DHandleEvent(PSContext2D_t* ctx, PSEvent* event);
/*
* PSContext2DGetBuffer
*
* Points the data member of the context to the raw pixels of the image for
* writing to the screen. The image will become visible after a swap.
*/
int PSContext2DGetBuffer(PSContext2D_t* ctx);
/*
* PSContext2DSwapBuffer
*
* Swaps out the currently visible graphics with the data stored in the image
* buffer making it visible. The old image resource will no longer be
* available after this call.
*/
int PSContext2DSwapBuffer(PSContext2D_t* ctx);
EXTERN_C_END
#endif /* PPAPI_SIMPLE_PS_CONTEXT_2D_H_ */