JackCarterSmith
23e8719f8d
-Add prototype of PNG export function (WIP) -Updated libs files and information -Credit work of @dpethes
53 lines
1.4 KiB
C
53 lines
1.4 KiB
C
#include "Image_Exporter.h"
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int saveToPNG(RS_IMAGE *img, char *tex_name) {
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char tex_path[64];
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FILE *_png_f = NULL;
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png_structp png_ptr = NULL;
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png_infop info_ptr = NULL;
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//size_t x,y;
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png_byte **row_ptrs = NULL;
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//int pixel_size = 3;
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//int depth = 8;
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strcpy(tex_path,tex_name);
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strcat(tex_path, ".png");
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_png_f = fopen(tex_path, "wb");
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if (_png_f == NULL) return EXIT_FAILURE;
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png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
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if (png_ptr == NULL) {
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fclose(_png_f);
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return EXIT_FAILURE;
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}
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info_ptr = png_create_info_struct(png_ptr);
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if (info_ptr == NULL) {
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fclose(_png_f);
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return EXIT_FAILURE;
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}
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// Set image attributes
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png_set_IHDR(png_ptr, info_ptr, img->width, img->height, 8, PNG_COLOR_TYPE_RGB, PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
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// Init PNG datas
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row_ptrs = png_malloc(png_ptr, img->height * sizeof(png_byte));
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/*for (y=0; y<img->height; y++) {
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png_byte *row = png_malloc(png_ptr, img->width*sizeof(unsigned char)*3);
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row_ptrs[y] = row;
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for (x=0; x<img->width; x++) {
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unsigned char pixel[3] = pixelAt(img->pixels);
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}
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}*/
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memcpy(row_ptrs, img->pixels, sizeof(unsigned char)*3*img->height*img->width);
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png_init_io(png_ptr, _png_f);
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png_set_rows(png_ptr, info_ptr, row_ptrs);
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png_write_png(png_ptr, info_ptr, PNG_TRANSFORM_IDENTITY, NULL);
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png_free(png_ptr, row_ptrs);
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png_destroy_write_struct(&png_ptr, &info_ptr);
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fclose(_png_f);
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return EXIT_SUCCESS;
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}
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