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// Copyright 2014 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#include "core/fxcodec/codec/ccodec_bmpmodule.h"
#include "core/fxcodec/bmp/cfx_bmpcontext.h"
#include "core/fxcodec/codec/codec_int.h"
#include "core/fxcodec/fx_codec.h"
#include "core/fxcrt/unowned_ptr.h"
#include "core/fxge/fx_dib.h"
#include "third_party/base/ptr_util.h"
CCodec_BmpModule::CCodec_BmpModule() {}
CCodec_BmpModule::~CCodec_BmpModule() {}
std::unique_ptr<CodecModuleIface::Context> CCodec_BmpModule::Start(
Delegate* pDelegate) {
auto p = pdfium::MakeUnique<CFX_BmpContext>(this, pDelegate);
p->m_Bmp.context_ptr_ = p.get();
return p;
}
int32_t CCodec_BmpModule::ReadHeader(Context* pContext,
int32_t* width,
int32_t* height,
bool* tb_flag,
int32_t* components,
int32_t* pal_num,
std::vector<uint32_t>* palette,
CFX_DIBAttribute* pAttribute) {
auto* ctx = static_cast<CFX_BmpContext*>(pContext);
if (setjmp(ctx->m_Bmp.jmpbuf_))
return 0;
int32_t ret = ctx->m_Bmp.ReadHeader();
if (ret != 1)
return ret;
*width = ctx->m_Bmp.width_;
*height = ctx->m_Bmp.height_;
*tb_flag = ctx->m_Bmp.imgTB_flag_;
*components = ctx->m_Bmp.components_;
*pal_num = ctx->m_Bmp.pal_num_;
*palette = ctx->m_Bmp.palette_;
if (pAttribute) {
pAttribute->m_wDPIUnit = FXCODEC_RESUNIT_METER;
pAttribute->m_nXDPI = ctx->m_Bmp.dpi_x_;
pAttribute->m_nYDPI = ctx->m_Bmp.dpi_y_;
pAttribute->m_nBmpCompressType = ctx->m_Bmp.compress_flag_;
}
return 1;
}
int32_t CCodec_BmpModule::LoadImage(Context* pContext) {
auto* ctx = static_cast<CFX_BmpContext*>(pContext);
if (setjmp(ctx->m_Bmp.jmpbuf_))
return 0;
return ctx->m_Bmp.DecodeImage();
}
FX_FILESIZE CCodec_BmpModule::GetAvailInput(Context* pContext) const {
return static_cast<CFX_BmpContext*>(pContext)->m_Bmp.GetAvailInput();
}
bool CCodec_BmpModule::Input(Context* pContext,
pdfium::span<uint8_t> src_buf,
CFX_DIBAttribute*) {
static_cast<CFX_BmpContext*>(pContext)->m_Bmp.SetInputBuffer(src_buf);
return true;
}
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