| |
| /* |
| * 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 |