51 lines
1.4 KiB
C++
51 lines
1.4 KiB
C++
// Copyright 2016 PDFium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#ifndef CORE_FXCODEC_PNG_PNGMODULE_H_
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#define CORE_FXCODEC_PNG_PNGMODULE_H_
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#include <memory>
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#include "core/fxcodec/codec_module_iface.h"
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namespace fxcodec {
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class PngModule final : public ModuleIface {
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public:
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class Delegate {
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public:
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virtual bool PngReadHeader(int width,
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int height,
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int bpc,
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int pass,
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int* color_type,
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double* gamma) = 0;
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// Returns true on success. |pSrcBuf| will be set if this succeeds.
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// |pSrcBuf| does not take ownership of the buffer.
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virtual bool PngAskScanlineBuf(int line, uint8_t** pSrcBuf) = 0;
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virtual void PngFillScanlineBufCompleted(int pass, int line) = 0;
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};
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PngModule();
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~PngModule() override;
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// ModuleIface:
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FX_FILESIZE GetAvailInput(Context* pContext) const override;
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bool Input(Context* pContext,
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RetainPtr<CFX_CodecMemory> codec_memory,
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CFX_DIBAttribute* pAttribute) override;
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std::unique_ptr<Context> Start(Delegate* pDelegate);
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};
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} // namespace fxcodec
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using PngModule = fxcodec::PngModule;
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#endif // CORE_FXCODEC_PNG_PNGMODULE_H_
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