111 lines
3.6 KiB
C++
111 lines
3.6 KiB
C++
/**
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* @author Edouard DUPIN
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*
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* @copyright 2011, Edouard DUPIN, all right reserved
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*
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* @license APACHE v2.0 (see license file)
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*/
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#include <esvg/debug.h>
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#include <esvg/Renderer.h>
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// 4 is for the RGBA ...
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#define DATA_ALLOCATION_ELEMENT (4)
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#undef __class__
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#define __class__ "Renderer"
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esvg::Renderer::Renderer(const ivec2& _size) {
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m_size = _size;
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m_buffer.resize(m_size.x() * m_size.y() * DATA_ALLOCATION_ELEMENT, 0);
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}
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esvg::Renderer::~Renderer() {
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m_buffer.clear();
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m_stride = 0;
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m_size = ivec2(0,0);
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}
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void esvg::Renderer::print(const esvg::render::Weight& _weightFill,
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const etk::Color<uint8_t,4>& _colorFill,
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const esvg::render::Weight& _weightStroke,
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const etk::Color<uint8_t,4>& _colorStroke) {
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if (_colorFill.a() == 0x00) {
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if (_colorStroke.a() != 0x00) {
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// only stroke
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for (int32_t yyy=0; yyy<m_size.y(); ++yyy) {
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for (int32_t xxx=0; xxx<m_size.x(); ++xxx) {
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ivec2 pos(xxx, yyy);
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float valueStroke = _weightStroke.get(pos);
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if (valueStroke != 0.0f) {
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m_buffer[(m_size.x()*yyy + xxx)*4 ] = uint8_t(valueStroke*_colorStroke.r());
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m_buffer[(m_size.x()*yyy + xxx)*4 + 1] = uint8_t(valueStroke*_colorStroke.g());
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m_buffer[(m_size.x()*yyy + xxx)*4 + 2] = uint8_t(valueStroke*_colorStroke.b());
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m_buffer[(m_size.x()*yyy + xxx)*4 + 3] = uint8_t(valueStroke*_colorStroke.a());
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}
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}
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}
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}
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} else {
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if (_colorStroke.a() == 0x00) {
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// only Fill
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for (int32_t yyy=0; yyy<m_size.y(); ++yyy) {
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for (int32_t xxx=0; xxx<m_size.x(); ++xxx) {
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ivec2 pos(xxx, yyy);
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float valueFill = _weightFill.get(pos);
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if (valueFill != 0.0f) {
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m_buffer[(m_size.x()*yyy + xxx)*4 ] = uint8_t(valueFill*_colorFill.r());
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m_buffer[(m_size.x()*yyy + xxx)*4 + 1] = uint8_t(valueFill*_colorFill.g());
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m_buffer[(m_size.x()*yyy + xxx)*4 + 2] = uint8_t(valueFill*_colorFill.b());
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m_buffer[(m_size.x()*yyy + xxx)*4 + 3] = uint8_t(valueFill*_colorFill.a());
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}
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}
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}
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} else {
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// all together
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for (int32_t yyy=0; yyy<m_size.y(); ++yyy) {
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for (int32_t xxx=0; xxx<m_size.x(); ++xxx) {
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ivec2 pos(xxx, yyy);
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float valueFill = _weightFill.get(pos);
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float valueStroke = _weightStroke.get(pos);
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if (valueStroke != 0.0f) {
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m_buffer[(m_size.x()*yyy + xxx)*4 ] = uint8_t(valueStroke*_colorStroke.r());
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m_buffer[(m_size.x()*yyy + xxx)*4 + 1] = uint8_t(valueStroke*_colorStroke.g());
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m_buffer[(m_size.x()*yyy + xxx)*4 + 2] = uint8_t(valueStroke*_colorStroke.b());
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m_buffer[(m_size.x()*yyy + xxx)*4 + 3] = uint8_t(valueStroke*_colorStroke.a());
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} else {
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m_buffer[(m_size.x()*yyy + xxx)*4 ] = uint8_t(valueFill*_colorFill.r());
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m_buffer[(m_size.x()*yyy + xxx)*4 + 1] = uint8_t(valueFill*_colorFill.g());
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m_buffer[(m_size.x()*yyy + xxx)*4 + 2] = uint8_t(valueFill*_colorFill.b());
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m_buffer[(m_size.x()*yyy + xxx)*4 + 3] = uint8_t(valueFill*_colorFill.a());
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}
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}
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}
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}
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}
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}
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// Writing the buffer to a .PPM file, assuming it has
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// RGB-structure, one byte per color component
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//--------------------------------------------------
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void esvg::Renderer::writePpm(std::string fileName) {
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if (m_buffer.size() == 0) {
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return;
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}
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FILE* fd = fopen(fileName.c_str(), "wb");
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if(fd != nullptr) {
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int32_t sizeX = m_size.x();
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int32_t sizeY = m_size.y();
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SVG_DEBUG("Generate ppm : " << m_size);
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fprintf(fd, "P6 %d %d 255 ", sizeX, sizeY);
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for (int32_t iii=0 ; iii<sizeX*sizeY; iii++) {
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fwrite(&m_buffer[iii*DATA_ALLOCATION_ELEMENT], 1, 3, fd);
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}
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fclose(fd);
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}
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}
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