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Remove out-of-bounds check for tiled images.

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Since tiles have an overlap, if the absolute point is inside the source
image, we can interpolate.
This commit is contained in:
Fabien Freling 2014-07-16 21:42:22 +02:00
parent 5f78958584
commit c918ca5504
1 changed files with 1 additions and 5 deletions
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6
rotation.cpp
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@ -726,11 +726,6 @@ void rotate_pixel(TiledImage<W, H> const& src,
pvalue_t const* src_index_1 = src.access_pixel(src_x, src_y);
pvalue_t const* src_index_3 = src_index_1 + (W + 1) * PIXEL_SIZE;
pvalue_t const* src_index_4 = src_index_3 + PIXEL_SIZE;
// FIXME: deal with image border
if (!src_index_4)
return;
unsigned int x_delta = src_rotated_point.x & 0x07;;
unsigned int y_delta = src_rotated_point.y & 0x07;
@ -740,6 +735,7 @@ void rotate_pixel(TiledImage<W, H> const& src,
#ifndef SIMD
pvalue_t const* src_index_2 = src_index_1 + PIXEL_SIZE;
pvalue_t const* src_index_4 = src_index_3 + PIXEL_SIZE;
rot_tile[0] = ((src_index_1[0] * inv_x + src_index_2[0] * x_delta) * inv_y
+ (src_index_3[0] * inv_x + src_index_4[0] * x_delta) * y_delta) >> 6;