diff options
Diffstat (limited to 'xfa/src/fxbarcode/BC_BufferedImageLuminanceSource.cpp')
| -rw-r--r-- | xfa/src/fxbarcode/BC_BufferedImageLuminanceSource.cpp | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/xfa/src/fxbarcode/BC_BufferedImageLuminanceSource.cpp b/xfa/src/fxbarcode/BC_BufferedImageLuminanceSource.cpp new file mode 100644 index 0000000000..73eb6478c6 --- /dev/null +++ b/xfa/src/fxbarcode/BC_BufferedImageLuminanceSource.cpp @@ -0,0 +1,169 @@ +// 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; +} |