updated to the latest libwebp library (v1.2.x HEAD commit 05b72d4)

https://chromium.googlesource.com/webm/libwebp

latest include files from src\webp
latest built static libraries using the build instructions in the x86 and x64 toolset
nmake /f Makefile.vc CFG=release-static RTLIBCFG=static OBJDIR=output

WEBP/include/webp/mux_types.h

@@ -14,28 +14,29 @@
 #ifndef WEBP_WEBP_MUX_TYPES_H_
 #define WEBP_WEBP_MUX_TYPES_H_
 
-#include <stdlib.h>  // free()
 #include <string.h>  // memset()
 #include "./types.h"
 
-#if defined(__cplusplus) || defined(c_plusplus)
+#ifdef __cplusplus
 extern "C" {
 #endif
 
 // Note: forward declaring enumerations is not allowed in (strict) C and C++,
 // the types are left here for reference.
 // typedef enum WebPFeatureFlags WebPFeatureFlags;
 // typedef enum WebPMuxAnimDispose WebPMuxAnimDispose;
+// typedef enum WebPMuxAnimBlend WebPMuxAnimBlend;
 typedef struct WebPData WebPData;
 
 // VP8X Feature Flags.
 typedef enum WebPFeatureFlags {
-  FRAGMENTS_FLAG  = 0x00000001,
   ANIMATION_FLAG  = 0x00000002,
   XMP_FLAG        = 0x00000004,
   EXIF_FLAG       = 0x00000008,
   ALPHA_FLAG      = 0x00000010,
-  ICCP_FLAG       = 0x00000020
+  ICCP_FLAG       = 0x00000020,
+
+  ALL_VALID_FLAGS = 0x0000003e
 } WebPFeatureFlags;
 
 // Dispose method (animation only). Indicates how the area used by the current
@@ -45,8 +46,16 @@ typedef enum WebPMuxAnimDispose {
   WEBP_MUX_DISPOSE_BACKGROUND  // Dispose to background color.
 } WebPMuxAnimDispose;
 
+// Blend operation (animation only). Indicates how transparent pixels of the
+// current frame are blended with those of the previous canvas.
+typedef enum WebPMuxAnimBlend {
+  WEBP_MUX_BLEND,              // Blend.
+  WEBP_MUX_NO_BLEND            // Do not blend.
+} WebPMuxAnimBlend;
+
 // Data type used to describe 'raw' data, e.g., chunk data
 // (ICC profile, metadata) and WebP compressed image data.
+// 'bytes' memory must be allocated using WebPMalloc() and such.
 struct WebPData {
   const uint8_t* bytes;
   size_t size;
@@ -59,11 +68,11 @@ static WEBP_INLINE void WebPDataInit(WebPData* webp_data) {
   }
 }
 
-// Clears the contents of the 'webp_data' object by calling free(). Does not
-// deallocate the object itself.
+// Clears the contents of the 'webp_data' object by calling WebPFree().
+// Does not deallocate the object itself.
 static WEBP_INLINE void WebPDataClear(WebPData* webp_data) {
   if (webp_data != NULL) {
-    free((void*)webp_data->bytes);
+    WebPFree((void*)webp_data->bytes);
     WebPDataInit(webp_data);
   }
 }
@@ -74,16 +83,16 @@ static WEBP_INLINE int WebPDataCopy(const WebPData* src, WebPData* dst) {
   if (src == NULL || dst == NULL) return 0;
   WebPDataInit(dst);
   if (src->bytes != NULL && src->size != 0) {
-    dst->bytes = (uint8_t*)malloc(src->size);
+    dst->bytes = (uint8_t*)WebPMalloc(src->size);
     if (dst->bytes == NULL) return 0;
     memcpy((void*)dst->bytes, src->bytes, src->size);
     dst->size = src->size;
   }
   return 1;
 }
 
-#if defined(__cplusplus) || defined(c_plusplus)
+#ifdef __cplusplus
 }    // extern "C"
 #endif
 
-#endif  /* WEBP_WEBP_MUX_TYPES_H_ */
+#endif  // WEBP_WEBP_MUX_TYPES_H_

WEBP/include/webp/types.h

@@ -7,7 +7,7 @@
 // be found in the AUTHORS file in the root of the source tree.
 // -----------------------------------------------------------------------------
 //
-//  Common types
+//  Common types + memory wrappers
 //
 // Author: Skal ([email protected])
 
@@ -18,10 +18,11 @@
 
 #ifndef _MSC_VER
 #include <inttypes.h>
-#ifdef __STRICT_ANSI__
-#define WEBP_INLINE
-#else  /* __STRICT_ANSI__ */
+#if defined(__cplusplus) || !defined(__STRICT_ANSI__) || \
+    (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L)
 #define WEBP_INLINE inline
+#else
+#define WEBP_INLINE
 #endif
 #else
 typedef signed   char int8_t;
@@ -38,10 +39,30 @@ typedef long long int int64_t;
 #ifndef WEBP_EXTERN
 // This explicitly marks library functions and allows for changing the
 // signature for e.g., Windows DLL builds.
-#define WEBP_EXTERN(type) extern type
+# if defined(__GNUC__) && __GNUC__ >= 4
+#  define WEBP_EXTERN extern __attribute__ ((visibility ("default")))
+# else
+#  define WEBP_EXTERN extern
+# endif  /* __GNUC__ >= 4 */
 #endif  /* WEBP_EXTERN */
 
 // Macro to check ABI compatibility (same major revision number)
 #define WEBP_ABI_IS_INCOMPATIBLE(a, b) (((a) >> 8) != ((b) >> 8))
 
-#endif  /* WEBP_WEBP_TYPES_H_ */
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// Allocates 'size' bytes of memory. Returns NULL upon error. Memory
+// must be deallocated by calling WebPFree(). This function is made available
+// by the core 'libwebp' library.
+WEBP_EXTERN void* WebPMalloc(size_t size);
+
+// Releases memory returned by the WebPDecode*() functions (from decode.h).
+WEBP_EXTERN void WebPFree(void* ptr);
+
+#ifdef __cplusplus
+}    // extern "C"
+#endif
+
+#endif  // WEBP_WEBP_TYPES_H_