diff options
Diffstat (limited to 'src/3rdparty/libpng/pngrtran.c')
| -rw-r--r-- | src/3rdparty/libpng/pngrtran.c | 28 |
1 files changed, 12 insertions, 16 deletions
diff --git a/src/3rdparty/libpng/pngrtran.c b/src/3rdparty/libpng/pngrtran.c index 16474741aac..1526123e025 100644 --- a/src/3rdparty/libpng/pngrtran.c +++ b/src/3rdparty/libpng/pngrtran.c @@ -297,14 +297,13 @@ png_set_alpha_mode_fixed(png_structrp png_ptr, int mode, 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++) { |