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1 // Copyright 2010 Google Inc. All Rights Reserved.
2 //
3 // Use of this source code is governed by a BSD-style license
4 // that can be found in the COPYING file in the root of the source
5 // tree. An additional intellectual property rights grant can be found
6 // in the file PATENTS. All contributing project authors may
7 // be found in the AUTHORS file in the root of the source tree.
8 // -----------------------------------------------------------------------------
9 //
10 //  Common types + memory wrappers
11 //
12 // Author: Skal (pascal.massimino@gmail.com)
13 
14 #ifndef WEBP_WEBP_TYPES_H_
15 #define WEBP_WEBP_TYPES_H_
16 
17 #include <stddef.h>  // for size_t
18 
19 #ifndef _MSC_VER
20 #include <inttypes.h>
21 #if defined(__cplusplus) || !defined(__STRICT_ANSI__) || \
22     (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L)
23 #define WEBP_INLINE inline
24 #else
25 #define WEBP_INLINE
26 #endif
27 #else
28 typedef signed   char int8_t;
29 typedef unsigned char uint8_t;
30 typedef signed   short int16_t;
31 typedef unsigned short uint16_t;
32 typedef signed   int int32_t;
33 typedef unsigned int uint32_t;
34 typedef unsigned long long int uint64_t;
35 typedef long long int int64_t;
36 #define WEBP_INLINE __forceinline
37 #endif  /* _MSC_VER */
38 
39 #ifndef WEBP_EXTERN
40 // This explicitly marks library functions and allows for changing the
41 // signature for e.g., Windows DLL builds.
42 # if defined(__GNUC__) && __GNUC__ >= 4
43 #  define WEBP_EXTERN extern __attribute__ ((visibility ("default")))
44 # else
45 #  define WEBP_EXTERN extern
46 # endif  /* __GNUC__ >= 4 */
47 #endif  /* WEBP_EXTERN */
48 
49 // Macro to check ABI compatibility (same major revision number)
50 #define WEBP_ABI_IS_INCOMPATIBLE(a, b) (((a) >> 8) != ((b) >> 8))
51 
52 #ifdef __cplusplus
53 extern "C" {
54 #endif
55 
56 // Allocates 'size' bytes of memory. Returns NULL upon error. Memory
57 // must be deallocated by calling WebPFree(). This function is made available
58 // by the core 'libwebp' library.
59 WEBP_EXTERN void* WebPMalloc(size_t size);
60 
61 // Releases memory returned by the WebPDecode*() functions (from decode.h).
62 WEBP_EXTERN void WebPFree(void* ptr);
63 
64 #ifdef __cplusplus
65 }    // extern "C"
66 #endif
67 
68 #endif  // WEBP_WEBP_TYPES_H_
69