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1 /*
2  * Copyright 2018 Google Inc.
3  *
4  * Use of this source code is governed by a BSD-style license that can be
5  * found in the LICENSE file.
6  */
7 
8 // EXPERIMENTAL EXPERIMENTAL EXPERIMENTAL EXPERIMENTAL
9 // DO NOT USE -- FOR INTERNAL TESTING ONLY
10 
11 #ifndef sk_imageinfo_DEFINED
12 #define sk_imageinfo_DEFINED
13 
14 #include "sk_types.h"
15 
16 SK_C_PLUS_PLUS_BEGIN_GUARD
17 
18 typedef enum {
19     UNKNOWN_SK_COLORTYPE,
20     RGBA_8888_SK_COLORTYPE,
21     BGRA_8888_SK_COLORTYPE,
22     ALPHA_8_SK_COLORTYPE,
23     GRAY_8_SK_COLORTYPE,
24     RGBA_F16_SK_COLORTYPE,
25     RGBA_F32_SK_COLORTYPE,
26 } sk_colortype_t;
27 
28 typedef enum {
29     OPAQUE_SK_ALPHATYPE,
30     PREMUL_SK_ALPHATYPE,
31     UNPREMUL_SK_ALPHATYPE,
32 } sk_alphatype_t;
33 
34 /**
35  *  Allocate a new imageinfo object. If colorspace is not null, it's owner-count will be
36  *  incremented automatically.
37  */
38 sk_imageinfo_t* sk_imageinfo_new(int width, int height, sk_colortype_t ct, sk_alphatype_t at,
39                                  sk_colorspace_t* cs);
40 
41 /**
42  *  Free the imageinfo object. If it contains a reference to a colorspace, its owner-count will
43  *  be decremented automatically.
44  */
45 void sk_imageinfo_delete(sk_imageinfo_t*);
46 
47 int32_t          sk_imageinfo_get_width(sk_imageinfo_t*);
48 int32_t          sk_imageinfo_get_height(sk_imageinfo_t*);
49 sk_colortype_t   sk_imageinfo_get_colortype(sk_imageinfo_t*);
50 sk_alphatype_t   sk_imageinfo_get_alphatype(sk_imageinfo_t*);
51 
52 /**
53  *  Return the colorspace object reference contained in the imageinfo, or null if there is none.
54  *  Note: this does not modify the owner-count on the colorspace object. If the caller needs to
55  *  use the colorspace beyond the lifetime of the imageinfo, it should manually call
56  *  sk_colorspace_ref() (and then call unref() when it is done).
57  */
58 sk_colorspace_t* sk_imageinfo_get_colorspace(sk_imageinfo_t*);
59 
60 SK_C_PLUS_PLUS_END_GUARD
61 
62 #endif
63