1
2 /*
3 * Copyright 2011 Google Inc.
4 *
5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file.
7 */
8 #ifndef SkCGUtils_DEFINED
9 #define SkCGUtils_DEFINED
10
11 #include "SkTypes.h"
12
13 #ifdef SK_BUILD_FOR_MAC
14 #include <ApplicationServices/ApplicationServices.h>
15 #endif
16
17 #ifdef SK_BUILD_FOR_IOS
18 #include <CoreGraphics/CoreGraphics.h>
19 #endif
20
21 class SkBitmap;
22 class SkData;
23 class SkStream;
24
25 /**
26 * Create an imageref from the specified bitmap using the specified colorspace.
27 * If space is NULL, then CGColorSpaceCreateDeviceRGB() is used.
28 */
29 SK_API CGImageRef SkCreateCGImageRefWithColorspace(const SkBitmap& bm,
30 CGColorSpaceRef space);
31
32 /**
33 * Create an imageref from the specified bitmap using the colorspace returned
34 * by CGColorSpaceCreateDeviceRGB()
35 */
SkCreateCGImageRef(const SkBitmap & bm)36 static inline CGImageRef SkCreateCGImageRef(const SkBitmap& bm) {
37 return SkCreateCGImageRefWithColorspace(bm, NULL);
38 }
39
40 /**
41 * Draw the bitmap into the specified CG context. The bitmap will be converted
42 * to a CGImage using the generic RGB colorspace. (x,y) specifies the position
43 * of the top-left corner of the bitmap. The bitmap is converted using the
44 * colorspace returned by CGColorSpaceCreateDeviceRGB()
45 */
46 void SkCGDrawBitmap(CGContextRef, const SkBitmap&, float x, float y);
47
48 bool SkPDFDocumentToBitmap(SkStream* stream, SkBitmap* output);
49
50 /**
51 * Return a provider that wraps the specified stream. It will become an
52 * owner of the stream, so the caller must still manage its ownership.
53 *
54 * To hand-off ownership of the stream to the provider, the caller must do
55 * something like the following:
56 *
57 * SkStream* stream = new ...;
58 * CGDataProviderRef provider = SkStreamToDataProvider(stream);
59 * stream->unref();
60 *
61 * Now when the provider is finally deleted, it will delete the stream.
62 */
63 CGDataProviderRef SkCreateDataProviderFromStream(SkStream*);
64
65 CGDataProviderRef SkCreateDataProviderFromData(SkData*);
66
67 #endif
68