1 // Copyright (c) 2012 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.
5 #ifndef SKIA_EXT_SKIA_UTILS_MAC_H_
6 #define SKIA_EXT_SKIA_UTILS_MAC_H_
8 #include <ApplicationServices/ApplicationServices.h>
11 #include "third_party/skia/include/core/SkBitmap.h"
12 #include "third_party/skia/include/core/SkColor.h"
20 typedef CGSize NSSize;
22 typedef struct _NSSize NSSize;
26 @class NSBitmapImageRep;
31 class NSBitmapImageRep;
39 // Converts a Skia point to a CoreGraphics CGPoint.
40 // Both use same in-memory format.
41 inline const CGPoint& SkPointToCGPoint(const SkPoint& point) {
42 return reinterpret_cast<const CGPoint&>(point);
45 // Converts a CoreGraphics point to a Skia CGPoint.
46 // Both use same in-memory format.
47 inline const SkPoint& CGPointToSkPoint(const CGPoint& point) {
48 return reinterpret_cast<const SkPoint&>(point);
52 SK_API CGAffineTransform SkMatrixToCGAffineTransform(const SkMatrix& matrix);
54 // Rectangle converters.
55 SK_API SkRect CGRectToSkRect(const CGRect& rect);
57 // Converts a Skia rect to a CoreGraphics CGRect.
58 CGRect SkIRectToCGRect(const SkIRect& rect);
59 CGRect SkRectToCGRect(const SkRect& rect);
61 // Converts CGColorRef to the ARGB layout Skia expects.
62 SK_API SkColor CGColorRefToSkColor(CGColorRef color);
64 // Converts ARGB to CGColorRef.
65 SK_API CGColorRef CGColorCreateFromSkColor(SkColor color);
67 // Converts NSColor to ARGB. Returns raw rgb values and does no colorspace
68 // conversion. Only valid for colors in calibrated and device color spaces.
69 SK_API SkColor NSDeviceColorToSkColor(NSColor* color);
71 // Converts ARGB in the specified color space to NSColor.
72 // Prefer sRGB over calibrated colors.
73 SK_API NSColor* SkColorToCalibratedNSColor(SkColor color);
74 SK_API NSColor* SkColorToDeviceNSColor(SkColor color);
75 SK_API NSColor* SkColorToSRGBNSColor(SkColor color);
77 // Converts a CGImage to a SkBitmap.
78 SK_API SkBitmap CGImageToSkBitmap(CGImageRef image);
80 // Draws an NSImage with a given size into a SkBitmap.
81 SK_API SkBitmap NSImageToSkBitmapWithColorSpace(NSImage* image,
83 CGColorSpaceRef color_space);
85 // Draws an NSImageRep with a given size into a SkBitmap.
86 SK_API SkBitmap NSImageRepToSkBitmapWithColorSpace(NSImageRep* image,
89 CGColorSpaceRef colorspace);
91 // Given an SkBitmap, return an autoreleased NSBitmapImageRep in the generic
93 SK_API NSBitmapImageRep* SkBitmapToNSBitmapImageRep(const SkBitmap& image);
95 SK_API NSBitmapImageRep* SkBitmapToNSBitmapImageRepWithColorSpace(
96 const SkBitmap& skiaBitmap,
97 CGColorSpaceRef colorSpace);
99 // Given an SkBitmap and a color space, return an autoreleased NSImage.
100 SK_API NSImage* SkBitmapToNSImageWithColorSpace(const SkBitmap& icon,
101 CGColorSpaceRef colorSpace);
103 // Given an SkBitmap, return an autoreleased NSImage in the generic color space.
104 // DEPRECATED, use SkBitmapToNSImageWithColorSpace() instead.
105 // TODO(thakis): Remove this -- http://crbug.com/69432
106 SK_API NSImage* SkBitmapToNSImage(const SkBitmap& icon);
108 // Converts a SkCanvas temporarily to a CGContext
109 class SK_API SkiaBitLocker {
111 explicit SkiaBitLocker(SkCanvas* canvas);
112 SkiaBitLocker(SkCanvas* canvas, const SkIRect& userClipRect);
114 CGContextRef cgContext();
115 bool hasEmptyClipRegion() const;
118 void releaseIfNeeded();
119 SkIRect computeDirtyRect();
123 // If the user specified a clip rect it would draw into then the locker may
124 // skip the step of searching for a rect bounding the pixels that the user
126 bool userClipRectSpecified_;
128 CGContextRef cgContext_;
130 SkIPoint bitmapOffset_;
132 // True if we are drawing to |canvas_|'s SkBaseDevice's bits directly through
133 // |bitmap_|. Otherwise, the bits in |bitmap_| are our allocation and need to
134 // be copied over to |canvas_|.
137 // True if |bitmap_| is a dummy 1x1 bitmap allocated for the sake of creating
138 // a non-NULL CGContext (it is invalid to use a NULL CGContext), and will not
139 // be copied to |canvas_|. This will happen if |canvas_|'s clip region is
147 #endif // SKIA_EXT_SKIA_UTILS_MAC_H_