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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
// Original code is licensed as follows:
/*
* Copyright 2009 ZXing authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "barcode.h"
#include "BC_LuminanceSource.h"
#include "BC_BufferedImageLuminanceSource.h"
class CBC_Pause : public IFX_Pause {
public:
virtual FX_BOOL NeedToPauseNow() { return TRUE; }
};
static CFX_DIBitmap* CreateDIBSource(IFX_FileRead* fileread) {
CFX_DIBitmap* bitmap = NULL;
CCodec_ModuleMgr* pCodecMgr = NULL;
ICodec_ProgressiveDecoder* pImageCodec = NULL;
pCodecMgr = new CCodec_ModuleMgr();
pImageCodec = pCodecMgr->CreateProgressiveDecoder();
FXCODEC_STATUS status = FXCODEC_STATUS_DECODE_FINISH;
status = pImageCodec->LoadImageInfo(fileread, FXCODEC_IMAGE_UNKNOWN, nullptr);
if (status != FXCODEC_STATUS_FRAME_READY) {
return NULL;
}
bitmap = new CFX_DIBitmap;
bitmap->Create(pImageCodec->GetWidth(), pImageCodec->GetHeight(), FXDIB_Argb);
bitmap->Clear(FXARGB_MAKE(0xFF, 0xFF, 0xFF, 0xFF));
CBC_Pause pause;
int32_t frames;
status = pImageCodec->GetFrames(frames, &pause);
while (status == FXCODEC_STATUS_FRAME_TOBECONTINUE) {
status = pImageCodec->GetFrames(frames, &pause);
}
if (status != FXCODEC_STATUS_DECODE_READY) {
goto except;
}
status = pImageCodec->StartDecode(bitmap, 0, 0, bitmap->GetWidth(),
bitmap->GetHeight(), 0, FALSE);
if (status == FXCODEC_STATUS_ERR_PARAMS) {
goto except;
}
if (status != FXCODEC_STATUS_DECODE_TOBECONTINUE) {
goto except;
}
while (status == FXCODEC_STATUS_DECODE_TOBECONTINUE) {
status = pImageCodec->ContinueDecode(&pause);
}
if (status != FXCODEC_STATUS_DECODE_FINISH) {
goto except;
}
if (pImageCodec) {
delete pImageCodec;
pImageCodec = NULL;
}
delete pCodecMgr;
pCodecMgr = NULL;
return bitmap;
except:
if (pImageCodec) {
delete pImageCodec;
pImageCodec = NULL;
}
delete pCodecMgr;
pCodecMgr = NULL;
if (bitmap) {
delete bitmap;
}
return NULL;
}
CBC_BufferedImageLuminanceSource::CBC_BufferedImageLuminanceSource(
const CFX_WideString& filename)
: CBC_LuminanceSource(0, 0), m_filename(filename) {
m_height = 0;
m_width = 0;
m_bytesPerLine = 0;
m_top = 0;
m_left = 0;
}
void CBC_BufferedImageLuminanceSource::Init(int32_t& e) {
IFX_FileRead* fileread = FX_CreateFileRead(m_filename);
m_pBitmap = CreateDIBSource(fileread);
if (m_pBitmap == NULL) {
e = BCExceptionLoadFile;
return;
}
m_pBitmap->ConvertFormat(FXDIB_Argb);
m_height = m_pBitmap->GetHeight();
m_width = m_pBitmap->GetWidth();
m_rgbData.SetSize(m_height * m_width);
m_bytesPerLine = m_width * 4;
m_top = 0;
m_left = 0;
}
CBC_BufferedImageLuminanceSource::CBC_BufferedImageLuminanceSource(
CFX_DIBitmap* pBitmap)
: CBC_LuminanceSource(0, 0) {
m_pBitmap = pBitmap->Clone();
m_pBitmap->ConvertFormat(FXDIB_Argb);
m_height = m_pBitmap->GetHeight();
m_width = m_pBitmap->GetWidth();
m_rgbData.SetSize(m_height * m_width);
m_bytesPerLine = m_width * 4;
m_top = 0;
m_left = 0;
}
CBC_BufferedImageLuminanceSource::~CBC_BufferedImageLuminanceSource() {
delete m_pBitmap;
m_pBitmap = NULL;
}
CFX_ByteArray* CBC_BufferedImageLuminanceSource::GetRow(int32_t y,
CFX_ByteArray& row,
int32_t& e) {
if (y < 0 || y >= m_height) {
e = BCExceptionRequestedRowIsOutSizeTheImage;
return NULL;
}
int32_t width = m_width;
if (row.GetSize() == 0 || row.GetSize() < width) {
row.SetSize(width);
}
if (m_rgbData.GetSize() == 0 || m_rgbData.GetSize() < width) {
m_rgbData.SetSize(width);
}
int32_t* rowLine = (int32_t*)m_pBitmap->GetScanline(y);
int32_t x;
for (x = 0; x < width; x++) {
int32_t pixel = rowLine[x];
int32_t luminance = (306 * ((pixel >> 16) & 0xFF) +
601 * ((pixel >> 8) & 0xFF) + 117 * (pixel & 0xFF)) >>
10;
row[x] = (uint8_t)luminance;
}
return &row;
}
CFX_ByteArray* CBC_BufferedImageLuminanceSource::GetMatrix() {
CFX_ByteArray* matirx = new CFX_ByteArray();
matirx->SetSize(m_bytesPerLine * m_height);
int32_t* rgb = (int32_t*)m_pBitmap->GetBuffer();
int32_t y;
for (y = 0; y < m_height; y++) {
int32_t offset = y * m_width;
int32_t x;
for (x = 0; x < m_width; x++) {
int32_t pixel = rgb[offset + x];
int32_t luminance =
(306 * ((pixel >> 16) & 0xFF) + 601 * ((pixel >> 8) & 0xFF) +
117 * (pixel & 0xFF)) >>
10;
(*matirx)[offset + x] = (uint8_t)luminance;
}
}
return matirx;
}
FX_BOOL CBC_BufferedImageLuminanceSource::IsCropSupported() {
return TRUE;
}
FX_BOOL CBC_BufferedImageLuminanceSource::IsRotateSupported() {
return TRUE;
}
CBC_LuminanceSource* CBC_BufferedImageLuminanceSource::Crop(int32_t left,
int32_t top,
int32_t width,
int32_t height) {
return NULL;
}
CBC_LuminanceSource* CBC_BufferedImageLuminanceSource::RotateCounterClockwise(
int32_t& e) {
if (!IsRotateSupported())
e = BCExceptionRotateNotSupported;
return NULL;
}
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