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88 lines
2.1 KiB
C++
88 lines
2.1 KiB
C++
/* (c) Magnus Auvinen. See licence.txt in the root of the distribution for more information. */
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/* If you are missing that file, acquire a complete release at teeworlds.com. */
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#include <base/logger.h>
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#include <base/system.h>
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#include <engine/shared/image_manipulation.h>
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#include <pnglite.h>
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int DilateFile(const char *pFilename)
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{
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IOHANDLE File = io_open(pFilename, IOFLAG_READ);
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if(!File)
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{
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dbg_msg("dilate", "failed to open file. filename='%s'", pFilename);
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return 0;
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}
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png_init(0, 0);
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png_t Png;
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int Error = png_open_read(&Png, 0, File);
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if(Error != PNG_NO_ERROR)
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{
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dbg_msg("dilate", "failed to open image file. filename='%s', pnglite: %s", pFilename, png_error_string(Error));
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io_close(File);
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return 0;
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}
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if(Png.color_type != PNG_TRUECOLOR_ALPHA)
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{
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dbg_msg("dilate", "%s: not an RGBA image", pFilename);
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return 1;
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}
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unsigned char *pBuffer = (unsigned char *)malloc((size_t)Png.width * Png.height * sizeof(unsigned char) * 4);
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Error = png_get_data(&Png, pBuffer);
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if(Error != PNG_NO_ERROR)
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{
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dbg_msg("map_convert_07", "failed to read image. filename='%s', pnglite: %s", pFilename, png_error_string(Error));
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free(pBuffer);
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io_close(File);
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return 0;
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}
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io_close(File);
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int w = Png.width;
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int h = Png.height;
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DilateImage(pBuffer, w, h, 4);
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// save here
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File = io_open(pFilename, IOFLAG_WRITE);
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if(!File)
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{
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dbg_msg("dilate", "failed to open file. filename='%s'", pFilename);
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free(pBuffer);
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return 0;
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}
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Error = png_open_write(&Png, 0, File);
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if(Error != PNG_NO_ERROR)
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{
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dbg_msg("dilate", "failed to open image file. filename='%s', pnglite: %s", pFilename, png_error_string(Error));
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io_close(File);
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return 0;
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}
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png_set_data(&Png, w, h, 8, PNG_TRUECOLOR_ALPHA, (unsigned char *)pBuffer);
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io_close(File);
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free(pBuffer);
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return 0;
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}
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int main(int argc, const char **argv)
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{
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cmdline_fix(&argc, &argv);
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log_set_global_logger_default();
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if(argc == 1)
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{
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dbg_msg("usage", "%s FILE1 [ FILE2... ]", argv[0]);
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return -1;
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}
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for(int i = 1; i < argc; i++)
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DilateFile(argv[i]);
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cmdline_free(argc, argv);
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return 0;
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}
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