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Add shortcut to Patch_GetPixel

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This commit is contained in:
Lactozilla 2023-09-24 16:33:38 -03:00
parent dca643676c
commit f464297169
1 changed files with 12 additions and 1 deletions
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13
src/r_patch.c
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@ -235,7 +235,7 @@ column_t *Patch_GetColumn(patch_t *patch, unsigned column)
void *Patch_GetPixel(patch_t *patch, INT32 x, INT32 y) void *Patch_GetPixel(patch_t *patch, INT32 x, INT32 y)
{ {
if (x < 0 || x >= patch->width) if (x < 0 || x >= patch->width || y < 0 || y >= patch->height)
return NULL; return NULL;
if (Patch_NeedsUpdate(patch)) if (Patch_NeedsUpdate(patch))
@ -244,6 +244,17 @@ void *Patch_GetPixel(patch_t *patch, INT32 x, INT32 y)
if (patch->columns == NULL) if (patch->columns == NULL)
return NULL; return NULL;
bitarray_t *pixels_opaque = Patch_GetOpaqueRegions(patch);
if (pixels_opaque)
{
size_t position = (x * patch->height) + y;
if (!in_bit_array(pixels_opaque, position))
return NULL;
return &patch->pixels[position];
}
column_t *column = &patch->columns[x]; column_t *column = &patch->columns[x];
for (unsigned i = 0; i < column->num_posts; i++) for (unsigned i = 0; i < column->num_posts; i++)