godot/thirdparty/libwebp/src/webp/mux_types.h

// Copyright 2012 Google Inc. All Rights Reserved.
//
// Use of this source code is governed by a BSD-style license
// that can be found in the COPYING file in the root of the source
// tree. An additional intellectual property rights grant can be found
// in the file PATENTS. All contributing project authors may
// be found in the AUTHORS file in the root of the source tree.
// -----------------------------------------------------------------------------
//
// Data-types common to the mux and demux libraries.
//
// Author: Urvang ([email protected])

#ifndef WEBP_WEBP_MUX_TYPES_H_
#define WEBP_WEBP_MUX_TYPES_H_

#include <string.h>  // memset()
#include "./types.h"

#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;
WebPData;

// VP8X Feature Flags.
WebPFeatureFlags;

// Dispose method (animation only). Indicates how the area used by the current
// frame is to be treated before rendering the next frame on the canvas.
WebPMuxAnimDispose;

// Blend operation (animation only). Indicates how transparent pixels of the
// current frame are blended with those of the previous canvas.
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 { … };

// Initializes the contents of the 'webp_data' object with default values.
static WEBP_INLINE void WebPDataInit(WebPData* webp_data) { … }

// 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) { … }

// Allocates necessary storage for 'dst' and copies the contents of 'src'.
// Returns true on success.
WEBP_NODISCARD static WEBP_INLINE int WebPDataCopy(const WebPData* src,
                                                   WebPData* dst) { … }

#ifdef __cplusplus
}    // extern "C"
#endif

#endif  // WEBP_WEBP_MUX_TYPES_H_