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comparison Core/PngWriter.cpp @ 453:30086c1aca30

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endianness
author Sebastien Jodogne <s.jodogne@gmail.com>
date Thu, 04 Jul 2013 14:29:44 +0200
parents bdd72233b105
children
comparison
equal deleted inserted replaced
452:80f7539147a2 453:30086c1aca30
35 #include <vector> 35 #include <vector>
36 #include <stdint.h> 36 #include <stdint.h>
37 #include <png.h> 37 #include <png.h>
38 #include "OrthancException.h" 38 #include "OrthancException.h"
39 #include "ChunkedBuffer.h" 39 #include "ChunkedBuffer.h"
40 #include "Toolbox.h"
40 41
41 42
42 // http://www.libpng.org/pub/png/libpng-1.2.5-manual.html#section-4 43 // http://www.libpng.org/pub/png/libpng-1.2.5-manual.html#section-4
43 // http://zarb.org/~gc/html/libpng.html 44 // http://zarb.org/~gc/html/libpng.html
44 /* 45 /*
169 if (height > 0) 170 if (height > 0)
170 { 171 {
171 switch (format) 172 switch (format)
172 { 173 {
173 case PixelFormat_Grayscale16: 174 case PixelFormat_Grayscale16:
174 // Must swap the endianness!!
175 png_set_rows(pimpl_->png_, pimpl_->info_, &pimpl_->rows_[0]); 175 png_set_rows(pimpl_->png_, pimpl_->info_, &pimpl_->rows_[0]);
176 png_write_png(pimpl_->png_, pimpl_->info_, PNG_TRANSFORM_SWAP_ENDIAN, NULL); 176
177 if (Toolbox::DetectEndianness() == Endianness_Little)
178 {
179 // Must swap the endianness!!
180 png_write_png(pimpl_->png_, pimpl_->info_, PNG_TRANSFORM_SWAP_ENDIAN, NULL);
181 }
182
177 break; 183 break;
178 184
179 default: 185 default:
180 png_write_image(pimpl_->png_, &pimpl_->rows_[0]); 186 png_write_image(pimpl_->png_, &pimpl_->rows_[0]);
181 } 187 }