Revision: 56247
http://sourceforge.net/p/brlcad/code/56247
Author: mohitdaga
Date: 2013-07-27 00:34:12 +0000 (Sat, 27 Jul 2013)
Log Message:
-----------
Added png saving function supporting new icv container
Modified Paths:
--------------
brlcad/trunk/src/libicv/fileformat.c
Modified: brlcad/trunk/src/libicv/fileformat.c
===================================================================
--- brlcad/trunk/src/libicv/fileformat.c 2013-07-26 23:20:16 UTC (rev
56246)
+++ brlcad/trunk/src/libicv/fileformat.c 2013-07-27 00:34:12 UTC (rev
56247)
@@ -182,6 +182,53 @@
}
HIDDEN int
+png_save(icv_image_t* bif, const char* filename)
+{
+ png_structp png_ptr = NULL;
+ png_infop info_ptr = NULL;
+ int i = 0;
+ int png_color_type = PNG_COLOR_TYPE_RGB;
+ unsigned char *data;
+ FILE *fh;
+
+ fh = fopen(filename, "w");
+ if (UNLIKELY(fh==NULL)) {
+ perror("fdopen");
+ bu_log("ERROR: png_save failed to get a FILE pointer\n");
+ return 0;
+ }
+
+ data = data2uchar(bif);
+
+ png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
+ if (UNLIKELY(png_ptr == NULL)) {
+ fclose(fh);
+ return 0;
+ }
+
+ info_ptr = png_create_info_struct(png_ptr);
+ if (info_ptr == NULL || setjmp(png_jmpbuf(png_ptr))) {
+ png_destroy_read_struct(&png_ptr, info_ptr ? &info_ptr : NULL, NULL);
+ bu_log("ERROR: Unable to create png header\n");
+ fclose(fh);
+ return 0;
+ }
+
+ png_init_io(png_ptr, fh);
+ png_set_IHDR(png_ptr, info_ptr, (unsigned)bif->width,
(unsigned)bif->height, 8, png_color_type,
+ PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_DEFAULT,
+ PNG_FILTER_TYPE_DEFAULT);
+ png_write_info(png_ptr, info_ptr);
+ for (i = bif->height-1; i >= 0; --i)
+ png_write_row(png_ptr, (png_bytep) (data + bif->width*bif->channels*i));
+ png_write_end(png_ptr, info_ptr);
+
+ png_destroy_write_struct(&png_ptr, &info_ptr);
+ fclose(fh);
+ return 1;
+}
+
+HIDDEN int
pix_save(icv_image_t* bif, const char* filename)
{
unsigned char *data;
@@ -360,10 +407,10 @@
switch(format) {
/* case ICV_IMAGE_BMP:
return bmp_save(bif, filename);
+ case ICV_IMAGE_PPM:
+ return ppm_save(bif, filename);*/
case ICV_IMAGE_PNG:
return png_save(bif, filename);
- case ICV_IMAGE_PPM:
- return ppm_save(bif, filename);*/
case ICV_IMAGE_PIX :
return pix_save(bif, filename);
case ICV_IMAGE_BW :
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