diff options
Diffstat (limited to 'media/libpng/pngrtran.c')
| -rw-r--r-- | media/libpng/pngrtran.c | 34 |
1 files changed, 15 insertions, 19 deletions
diff --git a/media/libpng/pngrtran.c b/media/libpng/pngrtran.c index 238f5afe7e..1526123e02 100644 --- a/media/libpng/pngrtran.c +++ b/media/libpng/pngrtran.c @@ -1,7 +1,7 @@ /* pngrtran.c - transforms the data in a row for PNG readers * - * Copyright (c) 2018-2019 Cosmin Truta + * Copyright (c) 2018-2024 Cosmin Truta * Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson * Copyright (c) 1996-1997 Andreas Dilger * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc. @@ -290,21 +290,20 @@ png_set_alpha_mode_fixed(png_structrp png_ptr, int mode, int compose = 0; png_fixed_point file_gamma; - png_debug(1, "in png_set_alpha_mode"); + png_debug(1, "in png_set_alpha_mode_fixed"); if (png_rtran_ok(png_ptr, 0) == 0) return; output_gamma = translate_gamma_flags(png_ptr, output_gamma, 1/*screen*/); - /* Validate the value to ensure it is in a reasonable range. The value + /* Validate the value to ensure it is in a reasonable range. The value * is expected to be 1 or greater, but this range test allows for some - * viewing correction values. The intent is to weed out users of this API - * who use the inverse of the gamma value accidentally! Since some of these - * values are reasonable this may have to be changed: + * viewing correction values. The intent is to weed out the API users + * who might use the inverse of the gamma value accidentally! * - * 1.6.x: changed from 0.07..3 to 0.01..100 (to accommodate the optimal 16-bit - * gamma of 36, and its reciprocal.) + * In libpng 1.6.0, we changed from 0.07..3 to 0.01..100, to accommodate + * the optimal 16-bit gamma of 36 and its reciprocal. */ if (output_gamma < 1000 || output_gamma > 10000000) png_error(png_ptr, "output gamma out of expected range"); @@ -441,7 +440,7 @@ png_set_quantize(png_structrp png_ptr, png_colorp palette, int i; png_ptr->quantize_index = (png_bytep)png_malloc(png_ptr, - (png_alloc_size_t)((png_uint_32)num_palette * (sizeof (png_byte)))); + (png_alloc_size_t)num_palette); for (i = 0; i < num_palette; i++) png_ptr->quantize_index[i] = (png_byte)i; } @@ -458,7 +457,7 @@ png_set_quantize(png_structrp png_ptr, png_colorp palette, /* Initialize an array to sort colors */ png_ptr->quantize_sort = (png_bytep)png_malloc(png_ptr, - (png_alloc_size_t)((png_uint_32)num_palette * (sizeof (png_byte)))); + (png_alloc_size_t)num_palette); /* Initialize the quantize_sort array */ for (i = 0; i < num_palette; i++) @@ -592,11 +591,9 @@ png_set_quantize(png_structrp png_ptr, png_colorp palette, /* Initialize palette index arrays */ png_ptr->index_to_palette = (png_bytep)png_malloc(png_ptr, - (png_alloc_size_t)((png_uint_32)num_palette * - (sizeof (png_byte)))); + (png_alloc_size_t)num_palette); png_ptr->palette_to_index = (png_bytep)png_malloc(png_ptr, - (png_alloc_size_t)((png_uint_32)num_palette * - (sizeof (png_byte)))); + (png_alloc_size_t)num_palette); /* Initialize the sort array */ for (i = 0; i < num_palette; i++) @@ -761,12 +758,11 @@ png_set_quantize(png_structrp png_ptr, png_colorp palette, size_t num_entries = ((size_t)1 << total_bits); png_ptr->palette_lookup = (png_bytep)png_calloc(png_ptr, - (png_alloc_size_t)(num_entries * (sizeof (png_byte)))); + (png_alloc_size_t)(num_entries)); - distance = (png_bytep)png_malloc(png_ptr, (png_alloc_size_t)(num_entries * - (sizeof (png_byte)))); + distance = (png_bytep)png_malloc(png_ptr, (png_alloc_size_t)num_entries); - memset(distance, 0xff, num_entries * (sizeof (png_byte))); + memset(distance, 0xff, num_entries); for (i = 0; i < num_palette; i++) { @@ -970,7 +966,7 @@ void PNGFAPI png_set_rgb_to_gray_fixed(png_structrp png_ptr, int error_action, png_fixed_point red, png_fixed_point green) { - png_debug(1, "in png_set_rgb_to_gray"); + png_debug(1, "in png_set_rgb_to_gray_fixed"); /* Need the IHDR here because of the check on color_type below. */ /* TODO: fix this */ |