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