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