| // Copyright 2014 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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| // Original code is licensed as follows: |
| /*
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| * Copyright 2009 ZXing authors
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| *
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| * Licensed under the Apache License, Version 2.0 (the "License");
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| * you may not use this file except in compliance with the License.
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| * You may obtain a copy of the License at
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| *
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| * http://www.apache.org/licenses/LICENSE-2.0
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| *
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| * Unless required by applicable law or agreed to in writing, software
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| * distributed under the License is distributed on an "AS IS" BASIS,
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| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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| * See the License for the specific language governing permissions and
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| * limitations under the License.
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| */
|
|
|
| #include "barcode.h"
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| #include "BC_LuminanceSource.h"
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| #include "BC_BufferedImageLuminanceSource.h"
|
| class CBC_Pause : public IFX_Pause
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| {
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| public:
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| virtual FX_BOOL NeedToPauseNow()
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| {
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| return TRUE;
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| }
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| };
|
| static CFX_DIBitmap* CreateDIBSource(IFX_FileRead* fileread)
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| {
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| CFX_DIBitmap* bitmap = NULL;
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| CCodec_ModuleMgr* pCodecMgr = NULL;
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| ICodec_ProgressiveDecoder* pImageCodec = NULL;
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| pCodecMgr = CCodec_ModuleMgr::Create();
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| pImageCodec = pCodecMgr->CreateProgressiveDecoder();
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| FXCODEC_STATUS status = FXCODEC_STATUS_DECODE_FINISH;
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| status = pImageCodec->LoadImageInfo(fileread, FXCODEC_IMAGE_UNKNOWN);
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| if (status != FXCODEC_STATUS_FRAME_READY) {
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| return NULL;
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| }
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| bitmap = FX_NEW CFX_DIBitmap;
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| bitmap->Create(pImageCodec->GetWidth(), pImageCodec->GetHeight(), FXDIB_Argb);
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| bitmap->Clear(FXARGB_MAKE(0xFF, 0xFF, 0xFF, 0xFF));
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| CBC_Pause pause;
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| FX_INT32 frames;
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| status = pImageCodec->GetFrames(frames, &pause);
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| while (status == FXCODEC_STATUS_FRAME_TOBECONTINUE) {
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| status = pImageCodec->GetFrames(frames, &pause);
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| }
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| if (status != FXCODEC_STATUS_DECODE_READY) {
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| goto except;
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| }
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| status = pImageCodec->StartDecode(bitmap,
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| 0,
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| 0,
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| bitmap->GetWidth(),
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| bitmap->GetHeight(),
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| 0,
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| FALSE);
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| if (status == FXCODEC_STATUS_ERR_PARAMS) {
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| goto except;
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| }
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| if (status != FXCODEC_STATUS_DECODE_TOBECONTINUE) {
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| goto except;
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| }
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| while (status == FXCODEC_STATUS_DECODE_TOBECONTINUE) {
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| status = pImageCodec->ContinueDecode(&pause);
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| }
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| if (status != FXCODEC_STATUS_DECODE_FINISH) {
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| goto except;
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| }
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| if (pImageCodec) {
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| delete pImageCodec;
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| pImageCodec = NULL;
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| }
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| if (pCodecMgr) {
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| pCodecMgr->Destroy();
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| pCodecMgr = NULL;
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| }
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| return bitmap;
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| except:
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| if (pImageCodec) {
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| delete pImageCodec;
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| pImageCodec = NULL;
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| }
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| if (pCodecMgr) {
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| pCodecMgr->Destroy();
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| pCodecMgr = NULL;
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| }
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| if (bitmap) {
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| delete bitmap;
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| }
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| return NULL;
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| }
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| CBC_BufferedImageLuminanceSource::CBC_BufferedImageLuminanceSource(const CFX_WideString &filename): CBC_LuminanceSource(0, 0), m_filename(filename)
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| {
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| m_height = 0;
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| m_width = 0;
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| m_bytesPerLine = 0;
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| m_top = 0;
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| m_left = 0;
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| }
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| void CBC_BufferedImageLuminanceSource::Init(FX_INT32 &e)
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| {
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| IFX_FileRead* fileread = FX_CreateFileRead(m_filename);
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| m_pBitmap = CreateDIBSource(fileread);
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| if (m_pBitmap == NULL) {
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| e = BCExceptionLoadFile;
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| return;
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| }
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| m_pBitmap->ConvertFormat(FXDIB_Argb);
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| m_height = m_pBitmap->GetHeight();
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| m_width = m_pBitmap->GetWidth();
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| m_rgbData.SetSize(m_height * m_width);
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| m_bytesPerLine = m_width * 4;
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| m_top = 0;
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| m_left = 0;
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| }
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| CBC_BufferedImageLuminanceSource::CBC_BufferedImageLuminanceSource(CFX_DIBitmap *pBitmap): CBC_LuminanceSource(0, 0)
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| {
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| m_pBitmap = pBitmap->Clone();
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| m_pBitmap->ConvertFormat(FXDIB_Argb);
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| m_height = m_pBitmap->GetHeight();
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| m_width = m_pBitmap->GetWidth();
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| m_rgbData.SetSize(m_height * m_width);
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| m_bytesPerLine = m_width * 4;
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| m_top = 0;
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| m_left = 0;
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| }
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| CBC_BufferedImageLuminanceSource::~CBC_BufferedImageLuminanceSource()
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| {
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| delete m_pBitmap;
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| m_pBitmap = NULL;
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| }
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| CFX_ByteArray *CBC_BufferedImageLuminanceSource::GetRow(FX_INT32 y, CFX_ByteArray &row, FX_INT32 &e)
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| {
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| if (y < 0 || y >= m_height) {
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| e = BCExceptionRequestedRowIsOutSizeTheImage;
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| return NULL;
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| }
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| FX_INT32 width = m_width;
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| if(row.GetSize() == 0 || row.GetSize() < width) {
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| row.SetSize(width);
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| }
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| if(m_rgbData.GetSize() == 0 || m_rgbData.GetSize() < width) {
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| m_rgbData.SetSize(width);
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| }
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| FX_INT32* rowLine = (FX_INT32*)m_pBitmap->GetScanline(y);
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| FX_INT32 x;
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| for (x = 0; x < width; x++) {
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| FX_INT32 pixel = rowLine[x];
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| FX_INT32 luminance = (306 * ((pixel >> 16) & 0xFF) +
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| 601 * ((pixel >> 8) & 0xFF) +
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| 117 * (pixel & 0xFF)) >> 10;
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| row[x] = (FX_BYTE) luminance;
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| }
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| return &row;
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| }
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| CFX_ByteArray *CBC_BufferedImageLuminanceSource::GetMatrix()
|
| {
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| CFX_ByteArray *matirx = FX_NEW CFX_ByteArray();
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| matirx->SetSize(m_bytesPerLine * m_height);
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| FX_INT32 *rgb = (FX_INT32*)m_pBitmap->GetBuffer();
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| FX_INT32 y;
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| for(y = 0; y < m_height; y++) {
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| FX_INT32 offset = y * m_width;
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| FX_INT32 x;
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| for(x = 0; x < m_width; x++) {
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| FX_INT32 pixel = rgb[offset + x];
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| FX_INT32 luminance = (306 * ((pixel >> 16) & 0xFF) +
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| 601 * ((pixel >> 8) & 0xFF) +
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| 117 * (pixel & 0xFF)) >> 10;
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| (*matirx)[offset + x] = (FX_BYTE) luminance;
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| }
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| }
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| return matirx;
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| }
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| FX_BOOL CBC_BufferedImageLuminanceSource::IsCropSupported()
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| {
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| return TRUE;
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| }
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| FX_BOOL CBC_BufferedImageLuminanceSource::IsRotateSupported()
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| {
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| return TRUE;
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| }
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| CBC_LuminanceSource *CBC_BufferedImageLuminanceSource::Crop(FX_INT32 left, FX_INT32 top, FX_INT32 width, FX_INT32 height)
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| {
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| return NULL;
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| }
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| CBC_LuminanceSource *CBC_BufferedImageLuminanceSource::RotateCounterClockwise(FX_INT32 &e)
|
| {
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| if (!IsRotateSupported()) {
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| e = BCExceptionRotateNotSupported;
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| return NULL;
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| }
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| FX_INT32 sourceWidth = m_width;
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| FX_INT32 sourceHeight = m_height;
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| return NULL;
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| }
|
