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128 lines
4.3 KiB
128 lines
4.3 KiB
// 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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#include "fxbarcode/BC_TwoDimWriter.h"
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#include <algorithm>
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#include "core/fxcrt/fx_safe_types.h"
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#include "core/fxge/cfx_graphstatedata.h"
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#include "core/fxge/cfx_pathdata.h"
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#include "core/fxge/cfx_renderdevice.h"
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#include "fxbarcode/BC_Writer.h"
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#include "fxbarcode/common/BC_CommonBitMatrix.h"
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#include "third_party/base/numerics/safe_math.h"
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#include "third_party/base/ptr_util.h"
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CBC_TwoDimWriter::CBC_TwoDimWriter(bool bFixedSize)
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: m_bFixedSize(bFixedSize) {}
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CBC_TwoDimWriter::~CBC_TwoDimWriter() = default;
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bool CBC_TwoDimWriter::RenderResult(pdfium::span<const uint8_t> code,
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int32_t codeWidth,
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int32_t codeHeight) {
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if (code.empty())
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return false;
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m_inputWidth = codeWidth;
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m_inputHeight = codeHeight;
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int32_t tempWidth = m_inputWidth + 2;
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int32_t tempHeight = m_inputHeight + 2;
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float moduleHSize = std::min(m_ModuleWidth, m_ModuleHeight);
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moduleHSize = std::min(moduleHSize, 8.0f);
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moduleHSize = std::max(moduleHSize, 1.0f);
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FX_SAFE_INT32 scaledWidth = tempWidth;
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FX_SAFE_INT32 scaledHeight = tempHeight;
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scaledWidth *= moduleHSize;
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scaledHeight *= moduleHSize;
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m_outputWidth = scaledWidth.ValueOrDie();
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m_outputHeight = scaledHeight.ValueOrDie();
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if (m_bFixedSize) {
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if (m_Width < m_outputWidth || m_Height < m_outputHeight) {
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return false;
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}
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} else {
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if (m_Width > m_outputWidth || m_Height > m_outputHeight) {
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int32_t width_factor = static_cast<int32_t>(
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floor(static_cast<float>(m_Width) / m_outputWidth));
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int32_t height_factor = static_cast<int32_t>(
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floor(static_cast<float>(m_Height) / m_outputHeight));
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width_factor = std::max(width_factor, 1);
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height_factor = std::max(height_factor, 1);
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m_outputWidth *= width_factor;
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m_outputHeight *= height_factor;
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}
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}
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m_multiX =
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static_cast<int32_t>(ceil(static_cast<float>(m_outputWidth) / tempWidth));
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m_multiY = static_cast<int32_t>(
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ceil(static_cast<float>(m_outputHeight) / tempHeight));
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if (m_bFixedSize) {
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m_multiX = std::min(m_multiX, m_multiY);
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m_multiY = m_multiX;
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}
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m_leftPadding = std::max((m_Width - m_outputWidth) / 2, 0);
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m_topPadding = std::max((m_Height - m_outputHeight) / 2, 0);
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m_output = pdfium::MakeUnique<CBC_CommonBitMatrix>();
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m_output->Init(m_inputWidth, m_inputHeight);
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for (int32_t y = 0; y < m_inputHeight; ++y) {
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for (int32_t x = 0; x < m_inputWidth; ++x) {
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if (code[x + y * m_inputWidth] == 1)
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m_output->Set(x, y);
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}
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}
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return true;
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}
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void CBC_TwoDimWriter::RenderDeviceResult(CFX_RenderDevice* device,
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const CFX_Matrix* matrix) {
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ASSERT(m_output);
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CFX_GraphStateData stateData;
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CFX_PathData path;
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path.AppendRect(0, 0, m_Width, m_Height);
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device->DrawPath(&path, matrix, &stateData, kBackgroundColor,
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kBackgroundColor, FXFILL_ALTERNATE);
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int32_t leftPos = m_leftPadding;
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int32_t topPos = m_topPadding;
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CFX_Matrix matri = *matrix;
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if (m_Width < m_outputWidth && m_Height < m_outputHeight) {
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CFX_Matrix matriScale(static_cast<float>(m_Width) / m_outputWidth, 0.0, 0.0,
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static_cast<float>(m_Height) / m_outputHeight, 0.0,
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0.0);
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matriScale.Concat(*matrix);
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matri = matriScale;
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}
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CFX_GraphStateData data;
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for (int32_t x = 0; x < m_inputWidth; x++) {
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for (int32_t y = 0; y < m_inputHeight; y++) {
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if (m_output->Get(x, y)) {
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// In the output, each module is shifted by 1 due to the one module
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// padding added to create quiet areas.
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int start_x_output = x + 1;
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int end_x_output = x + 2;
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int start_y_output = y + 1;
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int end_y_output = y + 2;
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CFX_PathData rect;
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rect.AppendRect(leftPos + start_x_output * m_multiX,
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topPos + start_y_output * m_multiY,
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leftPos + end_x_output * m_multiX,
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topPos + end_y_output * m_multiY);
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device->DrawPath(&rect, &matri, &data, kBarColor, 0, FXFILL_WINDING);
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}
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}
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}
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}
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