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