diff options
Diffstat (limited to 'pngrtran.c')
| -rw-r--r-- | pngrtran.c | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/pngrtran.c b/pngrtran.c index 0e98db4da..a63200020 100644 --- a/pngrtran.c +++ b/pngrtran.c @@ -1,9 +1,9 @@ /* pngrtran.c - transforms the data in a row for PNG readers * - * Last changed in libpng 1.2.30 [August 15, 2008] + * Last changed in libpng 1.2.35 [February 12, 2009] * For conditions of distribution and use, see copyright notice in png.h - * Copyright (c) 1998-2008 Glenn Randers-Pehrson + * Copyright (c) 1998-2009 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * @@ -309,9 +309,7 @@ png_set_dither(png_structp png_ptr, png_colorp palette, hash = (png_dsortpp)png_malloc(png_ptr, (png_uint_32)(769 * png_sizeof(png_dsortp))); - for (i = 0; i < 769; i++) - hash[i] = NULL; -/* png_memset(hash, 0, 769 * png_sizeof(png_dsortp)); */ + png_memset(hash, 0, 769 * png_sizeof(png_dsortp)); num_new_palette = num_palette; @@ -684,7 +682,7 @@ png_set_rgb_to_gray_fixed(png_structp png_ptr, int error_action, } png_ptr->rgb_to_gray_red_coeff = red_int; png_ptr->rgb_to_gray_green_coeff = green_int; - png_ptr->rgb_to_gray_blue_coeff = + png_ptr->rgb_to_gray_blue_coeff = (png_uint_16)(32768 - red_int - green_int); } } @@ -1329,7 +1327,7 @@ png_do_read_transformations(png_structp png_ptr) if (rgb_error) { png_ptr->rgb_to_gray_status=1; - if ((png_ptr->transformations & PNG_RGB_TO_GRAY) == + if ((png_ptr->transformations & PNG_RGB_TO_GRAY) == PNG_RGB_TO_GRAY_WARN) png_warning(png_ptr, "png_do_rgb_to_gray found nongray pixel"); if ((png_ptr->transformations & PNG_RGB_TO_GRAY) == @@ -3836,7 +3834,7 @@ png_do_expand(png_row_infop row_info, png_bytep row, dp = row + (row_info->rowbytes << 1) - 1; for (i = 0; i < row_width; i++) { - if (*(sp - 1) == gray_high && *(sp) == gray_low) + if (*(sp - 1) == gray_high && *(sp) == gray_low) { *dp-- = 0; *dp-- = 0; @@ -4133,6 +4131,8 @@ png_build_gamma_table(png_structp png_ptr) double fin, fout; png_uint_32 last, max; + png_memset(png_ptr->gamma_16_table, 0, num * png_sizeof(png_uint_16p)); + for (i = 0; i < num; i++) { png_ptr->gamma_16_table[i] = (png_uint_16p)png_malloc(png_ptr, @@ -4188,6 +4188,8 @@ png_build_gamma_table(png_structp png_ptr) png_ptr->gamma_16_to_1 = (png_uint_16pp)png_malloc(png_ptr, (png_uint_32)(num * png_sizeof(png_uint_16p ))); + png_memset(png_ptr->gamma_16_to_1, 0, num * png_sizeof(png_uint_16p)); + for (i = 0; i < num; i++) { png_ptr->gamma_16_to_1[i] = (png_uint_16p)png_malloc(png_ptr, @@ -4211,6 +4213,9 @@ png_build_gamma_table(png_structp png_ptr) png_ptr->gamma_16_from_1 = (png_uint_16pp)png_malloc(png_ptr, (png_uint_32)(num * png_sizeof(png_uint_16p))); + png_memset(png_ptr->gamma_16_from_1, 0, + num * png_sizeof(png_uint_16p)); + for (i = 0; i < num; i++) { png_ptr->gamma_16_from_1[i] = (png_uint_16p)png_malloc(png_ptr, |