Home | History | Annotate | Download | only in c
      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