skia2/include/utils/mac/SkCGUtils.h
John Stiles fe0de30a87 Enable ClangTidy check modernize-use-nullptr.
https://clang.llvm.org/extra/clang-tidy/checks/modernize-use-nullptr.html

The check converts the usage of null pointer constants (eg. NULL, 0) to
use the new C++11 nullptr keyword.

Change-Id: Iaea2d843154c70e49d62affdc5dceb3bca8c1089
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/310297
Commit-Queue: John Stiles <johnstiles@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
2020-08-14 16:14:30 +00:00

79 lines
2.6 KiB
C++

/*
* 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 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);
/**
* 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 using the specified colorspace.
* If space is NULL, then CGColorSpaceCreateDeviceRGB() is used.
*/
SK_API CGImageRef SkCreateCGImageRefWithColorspace(const SkBitmap& bm,
CGColorSpaceRef space);
/**
* Create an imageref from the specified bitmap using the colorspace returned
* by CGColorSpaceCreateDeviceRGB()
*/
static inline CGImageRef SkCreateCGImageRef(const SkBitmap& bm) {
return SkCreateCGImageRefWithColorspace(bm, nil);
}
/**
* Draw the bitmap into the specified CG context. The bitmap will be converted
* to a CGImage using the generic RGB colorspace. (x,y) specifies the position
* of the top-left corner of the bitmap. The bitmap is converted using the
* colorspace returned by CGColorSpaceCreateDeviceRGB()
*/
void SkCGDrawBitmap(CGContextRef, const SkBitmap&, float x, float y);
#endif // defined(SK_BUILD_FOR_MAC) || defined(SK_BUILD_FOR_IOS)
#endif // SkCGUtils_DEFINED