mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-26 14:22:01 +00:00
63 lines
1.6 KiB
C++
63 lines
1.6 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
*
|
|
* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#ifndef nsWBMPDecoder_h__
|
|
#define nsWBMPDecoder_h__
|
|
|
|
#include "Decoder.h"
|
|
#include "nsCOMPtr.h"
|
|
#include "imgDecoderObserver.h"
|
|
#include "gfxColor.h"
|
|
|
|
namespace mozilla {
|
|
namespace image {
|
|
class RasterImage;
|
|
|
|
/* WBMP is a monochrome graphics file format optimized for mobile computing devices.
|
|
* Format description from http://www.wapforum.org/what/technical/SPEC-WAESpec-19990524.pdf
|
|
*/
|
|
|
|
typedef enum {
|
|
WbmpStateStart,
|
|
DecodingFixHeader,
|
|
DecodingWidth,
|
|
DecodingHeight,
|
|
DecodingImageData,
|
|
DecodingFailed,
|
|
WbmpStateFinished
|
|
} WbmpDecodingState;
|
|
|
|
typedef enum {
|
|
IntParseSucceeded,
|
|
IntParseFailed,
|
|
IntParseInProgress
|
|
} WbmpIntDecodeStatus;
|
|
|
|
class nsWBMPDecoder : public Decoder
|
|
{
|
|
public:
|
|
|
|
nsWBMPDecoder(RasterImage &aImage);
|
|
virtual ~nsWBMPDecoder();
|
|
|
|
virtual void WriteInternal(const char* aBuffer, uint32_t aCount);
|
|
|
|
private:
|
|
uint32_t mWidth;
|
|
uint32_t mHeight;
|
|
|
|
uint8_t* mRow; // Holds one raw line of the image
|
|
uint32_t mRowBytes; // How many bytes of the row were already received
|
|
uint32_t mCurLine; // The current line being decoded (0 to mHeight - 1)
|
|
|
|
WbmpDecodingState mState; // Describes what part of the file we are decoding now.
|
|
};
|
|
|
|
} // namespace image
|
|
} // namespace mozilla
|
|
|
|
#endif // nsWBMPDecoder_h__
|