fabs/rotate-me-fast
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Remove temp buffer for non-tiled image.

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This commit is contained in:
Fabien Freling 2014-07-09 08:00:58 +02:00
parent eb5bae42c3
commit 3ab9df90df
1 changed files with 1 additions and 13 deletions
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14
rotation.cpp
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@ -687,12 +687,8 @@ Image* rotate(Image const& src, double angle)
DPoint const rot_origin_in_src_grid = get_mapped_point(*rotated, Point(0, 0), -rotation); DPoint const rot_origin_in_src_grid = get_mapped_point(*rotated, Point(0, 0), -rotation);
DPoint const rot_origin_in_src = convert_img_coord_precision(src, rot_origin_in_src_grid); DPoint const rot_origin_in_src = convert_img_coord_precision(src, rot_origin_in_src_grid);
unsigned int const buffer_pixel_capacity = 128 / 3;
unsigned int const buffer_size = buffer_pixel_capacity * 3;
unsigned int buffer_index = 0; unsigned int buffer_index = 0;
uint8_t buffer[buffer_size]; uint8_t* buffer = rotated->buffer;
memset(buffer, 0, buffer_size);
unsigned int buffer_offset = 0;
unsigned int const quantize = 8; unsigned int const quantize = 8;
int const& src_qwidth = src.width * quantize; int const& src_qwidth = src.width * quantize;
@ -716,15 +712,7 @@ Image* rotate(Image const& src, double angle)
buffer, buffer_index * 3); buffer, buffer_index * 3);
} }
// Flush buffer to dest
++buffer_index; ++buffer_index;
if (buffer_index == buffer_pixel_capacity)
{
memcpy(rotated->buffer + buffer_offset, buffer, buffer_size);
buffer_offset += buffer_size;
buffer_index = 0;
memset(buffer, 0, buffer_size);
}
} }
} }