anulax
/
stb
1
0
Fork 0
Code Issues Pull Requests Packages project_board Releases Wiki Activity

uint32 images need to round with uint32 cast, not int cast

Browse Source
master
Sean Barrett ago%!(EXTRA string=11 years)
parent 9f66b441bd
commit bdbf1e0ef4
1 changed files with 4 additions and 3 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 7
      stb_image_resize.h

7
stb_image_resize.h
Unescape View File

@ -1613,7 +1613,8 @@ static void stbir__encode_scanline(stbir__info* stbir_info, int num_pixels, void
}
}
#define STBIR__ROUND_INT(f) ((int) ((f)+0.5)) //#define STBIR__ROUND_INT(f) (floor((f)+0.5))
#define STBIR__ROUND_INT(f) ((int) ((f)+0.5))
#define STBIR__ROUND_UINT(f) ((stbir_uint32) ((f)+0.5))
switch (decode)
{
@ -1684,7 +1685,7 @@ static void stbir__encode_scanline(stbir__info* stbir_info, int num_pixels, void
for (n = 0; n < channels; n++)
{
int index = pixel_index + n;
((unsigned int*)output_buffer)[index] = (unsigned int)STBIR__ROUND_INT(((double)stbir__saturate(encode_buffer[index])) * 4294967295);
((unsigned int*)output_buffer)[index] = (unsigned int)STBIR__ROUND_UINT(((double)stbir__saturate(encode_buffer[index])) * 4294967295);
}
}
break;
@ -1697,7 +1698,7 @@ static void stbir__encode_scanline(stbir__info* stbir_info, int num_pixels, void
for (n = 0; n < channels; n++)
{
int index = pixel_index + n;
((unsigned int*)output_buffer)[index] = (unsigned int)STBIR__ROUND_INT(((double)stbir__linear_to_srgb(stbir__saturate(encode_buffer[index]))) * 4294967295);
((unsigned int*)output_buffer)[index] = (unsigned int)STBIR__ROUND_UINT(((double)stbir__linear_to_srgb(stbir__saturate(encode_buffer[index]))) * 4294967295);
}
if (!(stbir_info->flags&STBIR_FLAG_ALPHA_USES_COLORSPACE))

Write Preview
Loading…
Cancel
Save