1 /* Copyright 2013 The Chromium Authors. All rights reserved. 2 * Use of this source code is governed by a BSD-style license that can be 3 * found in the LICENSE file. */ 4 5 #ifndef PPAPI_SIMPLE_PS_CONTEXT_2D_H_ 6 #define PPAPI_SIMPLE_PS_CONTEXT_2D_H_ 7 8 #include "ppapi/c/pp_resource.h" 9 #include "ppapi/c/ppb_graphics_2d.h" 10 #include "ppapi/c/ppb_image_data.h" 11 12 #include "ppapi_simple/ps_event.h" 13 14 #include "sdk_util/macros.h" 15 16 EXTERN_C_BEGIN 17 18 typedef struct { 19 int bound; 20 int32_t width; 21 int32_t height; 22 uint32_t stride; 23 uint32_t* data; 24 PP_ImageDataFormat format; 25 PP_Resource graphic_2d; 26 PP_Resource image; 27 } PSContext2D_t; 28 29 30 /* 31 * PSContext2DAllocate 32 * 33 * Allocate or free a 2D context object which the library can use to perform 34 * various PPAPI operations on the developer's behalf, such as processing view 35 * change events, swapping buffers, etc... 36 */ 37 PSContext2D_t* PSContext2DAllocate(PP_ImageDataFormat format); 38 void PSContext2DFree(PSContext2D_t* ctx); 39 40 /* 41 * PSContext2DGetNativeFormat 42 * 43 * Query the native system image format. 44 */ 45 PP_ImageDataFormat PSContext2DGetNativeImageDataFormat(); 46 47 /* 48 * PSContext2DHandleEvent 49 * 50 * Updates the context such as allocating, freeing, or sizing graphics and 51 * image resources in response to events. 52 */ 53 int PSContext2DHandleEvent(PSContext2D_t* ctx, PSEvent* event); 54 55 /* 56 * PSContext2DGetBuffer 57 * 58 * Points the data member of the context to the raw pixels of the image for 59 * writing to the screen. The image will become visible after a swap. 60 */ 61 int PSContext2DGetBuffer(PSContext2D_t* ctx); 62 63 /* 64 * PSContext2DSwapBuffer 65 * 66 * Swaps out the currently visible graphics with the data stored in the image 67 * buffer making it visible. The old image resource will no longer be 68 * available after this call. 69 */ 70 int PSContext2DSwapBuffer(PSContext2D_t* ctx); 71 72 EXTERN_C_END 73 74 #endif /* PPAPI_SIMPLE_PS_CONTEXT_2D_H_ */ 75
