mewin/libpng
1
0
Fork 0
mirror of https://git.code.sf.net/p/libpng/code.git synced 2025-07-10 18:04:09 +02:00
Code Issues Projects Releases Wiki Activity

Imported from pngcrush-1.3.3.tar

Browse Source
This commit is contained in:
Glenn Randers-Pehrson
2000-01-12 22:56:38 -06:00
parent c3e8db9e59
commit 10ecaa7a20
22 changed files with 509 additions and 107 deletions
Download Patch File Download Diff File Expand all files Collapse all files

34
pngset.c
View File

@@ -1,11 +1,11 @@
/* pngset.c - storage of image information into info struct
*
* libpng 1.0.5k - December 27, 1999
* libpng 1.0.5m - January 7, 2000
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger
* Copyright (c) 1998, 1999 Glenn Randers-Pehrson
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
*
* The functions here are used during reads to store data from the file
* into the info struct, and during writes to store application data
@@ -81,14 +81,14 @@ png_set_cHRM_fixed(png_structp png_ptr, png_infop info_ptr,
info_ptr->int_x_blue = blue_x;
info_ptr->int_y_blue = blue_y;
#ifdef PNG_FLOATING_POINT_SUPPORTED
info_ptr->x_white = (float)white_x/100000.;
info_ptr->y_white = (float)white_y/100000.;
info_ptr->x_red = (float)red_x/100000.;
info_ptr->y_red = (float)red_y/100000.;
info_ptr->x_green = (float)green_x/100000.;
info_ptr->y_green = (float)green_y/100000.;
info_ptr->x_blue = (float)blue_x/100000.;
info_ptr->y_blue = (float)blue_y/100000.;
info_ptr->x_white = (float)(white_x/100000.);
info_ptr->y_white = (float)(white_y/100000.);
info_ptr->x_red = (float)(red_x/100000.);
info_ptr->y_red = (float)(red_y/100000.);
info_ptr->x_green = (float)(green_x/100000.);
info_ptr->y_green = (float)(green_y/100000.);
info_ptr->x_blue = (float)(blue_x/100000.);
info_ptr->y_blue = (float)(blue_y/100000.);
#endif
info_ptr->valid |= PNG_INFO_cHRM;
}
@@ -121,7 +121,7 @@ png_set_gAMA_fixed(png_structp png_ptr, png_infop info_ptr, png_fixed_point
return;
#ifdef PNG_FLOATING_POINT_SUPPORTED
info_ptr->gamma = (float)int_gamma/100000.;
info_ptr->gamma = (float)(int_gamma/100000.);
#endif
info_ptr->int_gamma = int_gamma;
info_ptr->valid |= PNG_INFO_gAMA;
@@ -733,3 +733,15 @@ png_set_keep_unknown_chunks(png_structp png_ptr, int keep, png_bytep
png_ptr->chunk_list=new_list;
}
#endif
#if defined(PNG_READ_USER_CHUNKS_SUPPORTED)
void
png_set_read_user_chunk_fn(png_structp png_ptr, png_voidp user_chunk_ptr,
png_user_chunk_ptr read_user_chunk_fn)
{
png_debug(1, "in png_set_read_user_chunk_fn\n");
png_ptr->read_user_chunk_fn = read_user_chunk_fn;
png_ptr->user_chunk_ptr = user_chunk_ptr;
}
#endif