/*
* Copyright 2011 Google Inc .
*
* Use of this source code is governed by a BSD - style license that can be
* found in the LICENSE file .
*/
#ifndef SkCGUtils_DEFINED
#define SkCGUtils_DEFINED
#include "include/core/SkImage.h"
#include "include/core/SkImageInfo.h"
#include "include/core/SkPixmap.h"
#include "include/core/SkSize.h"
#if defined (SK_BUILD_FOR_MAC) || defined (SK_BUILD_FOR_IOS)
#ifdef SK_BUILD_FOR_MAC
#include <ApplicationServices/ApplicationServices.h>
#endif
#ifdef SK_BUILD_FOR_IOS
#include <CoreGraphics/CoreGraphics.h>
#endif
class SkBitmap;
class SkColorSpace;
class SkData;
class SkPixmap;
class SkStreamRewindable;
SK_API CGContextRef SkCreateCGContext(const SkPixmap&);
/**
* Given a CGImage , allocate an SkBitmap and copy the image ' s pixels into it . If scaleToFit is not
* null , use it to determine the size of the bitmap , and scale the image to fill the bitmap .
* Otherwise use the image ' s width / height .
*
* On failure , return false , and leave bitmap unchanged .
*/
SK_API bool SkCreateBitmapFromCGImage(SkBitmap* dst, CGImageRef src);
SK_API sk_sp<SkImage> SkMakeImageFromCGImage(CGImageRef);
/**
* Given a CGColorSpace , return the closest matching SkColorSpace . If no conversion is possible
* or if the input CGColorSpace is nullptr then return nullptr .
*/
SK_API sk_sp<SkColorSpace> SkMakeColorSpaceFromCGColorSpace(CGColorSpaceRef);
/**
* Copy the pixels from src into the memory specified by info / rowBytes / dstPixels . On failure ,
* return false ( e . g . ImageInfo incompatible with src ) .
*/
SK_API bool SkCopyPixelsFromCGImage(const SkImageInfo& info, size_t rowBytes, void * dstPixels,
CGImageRef src);
static inline bool SkCopyPixelsFromCGImage(const SkPixmap& dst, CGImageRef src) {
return SkCopyPixelsFromCGImage(dst.info(), dst.rowBytes(), dst.writable_addr(), src);
}
/**
* Create an imageref from the specified bitmap . The color space parameter is ignored .
*/
SK_API CGImageRef SkCreateCGImageRefWithColorspace(const SkBitmap& bm,
CGColorSpaceRef space);
/**
* Create an imageref from the specified bitmap .
*/
SK_API CGImageRef SkCreateCGImageRef(const SkBitmap& bm);
/**
* Given an SkColorSpace , create a CGColorSpace . This will return sRGB if the specified
* SkColorSpace is nullptr or on failure . This will not retain the specified SkColorSpace .
*/
SK_API CGColorSpaceRef SkCreateCGColorSpace(const SkColorSpace*);
/**
* Given an SkData , create a CGDataProviderRef that refers to the and retains the specified data .
*/
SK_API CGDataProviderRef SkCreateCGDataProvider(sk_sp<SkData>);
/**
* Draw the bitmap into the specified CG context . ( x , y ) specifies the position of the top - left
* corner of the bitmap .
*/
void SkCGDrawBitmap(CGContextRef, const SkBitmap&, float x, float y);
#endif // defined(SK_BUILD_FOR_MAC) || defined(SK_BUILD_FOR_IOS)
#endif // SkCGUtils_DEFINED
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