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Added OptiPNG's opngreduc.c functionality to iff2html. The results are fantastic for typical SPR# images, reducing images to about half the size they were before.

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On diner_steel2:
113073 bytes -> 57004 bytes; 57004/113073= 0.5041 or 50% original size
This commit is contained in:
Fatbag 2012-05-29 23:26:57 -05:00
parent 67fa76c747
commit aced66a7af
4 changed files with 1411 additions and 0 deletions
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2
Tools/iff2html/image.c
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@ -21,6 +21,7 @@
#include <bmp/read_bmp.h>
#include <setjmp.h>
#include <libpng/png.h>
#include "opngreduc.h"
int WritePNG(const char * OutName, const IFFChunk * ChunkData, const IFFSprite * Sprite, size_t * Width, size_t * Height){
FILE * hFile;
@ -121,6 +122,7 @@ int WritePNG(const char * OutName, const IFFChunk * ChunkData, const IFFSprite *
PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
png_set_rows(png_ptr, info_ptr, row_pointers);
opng_reduce_image(png_ptr, info_ptr, OPNG_REDUCE_ALL);
png_write_png(png_ptr, info_ptr, PNG_TRANSFORM_BGR, NULL);
png_destroy_write_struct(&png_ptr, &info_ptr);