diff options
Diffstat (limited to 'src/kernels/interpolator.cl')
| -rw-r--r-- | src/kernels/interpolator.cl | 23 |
1 files changed, 16 insertions, 7 deletions
diff --git a/src/kernels/interpolator.cl b/src/kernels/interpolator.cl index 6600af9..4d4eae8 100644 --- a/src/kernels/interpolator.cl +++ b/src/kernels/interpolator.cl @@ -53,7 +53,8 @@ interpolate_horizontally (global float *a, kernel void interpolate_mask_horizontally (global float *input, global float *mask, - global float *output) + global float *output, + const int use_gradient) { const int idx = get_global_id (0); const int idy = get_global_id (1); @@ -73,9 +74,13 @@ interpolate_mask_horizontally (global float *input, if (left < 0) { /* Mask spans to the left border, use only the right value */ if (right < width - 1) { - /* There are two valid pixels on the right, use gradient */ - diff = input[offset + right] - input[offset + right + 1]; - output[offset + idx] = input[offset + right] + diff * (right - idx); + if (use_gradient) { + /* There are two valid pixels on the right, use gradient */ + diff = input[offset + right] - input[offset + right + 1]; + output[offset + idx] = input[offset + right] + diff * (right - idx); + } else { + output[offset + idx] = input[offset + right]; + } } else if (right == width - 1) { /* There is only one valid pixel on the right, which is the only * valid pixel in this row, so use it's value everywhere */ @@ -87,9 +92,13 @@ interpolate_mask_horizontally (global float *input, } else if (right >= width) { /* Mask spans to the right border, use only the left value */ if (left > 0) { - /* There are two valid pixels on the left, use gradient */ - diff = input[offset + left] - input[offset + left - 1]; - output[offset + idx] = input[offset + left] + diff * (idx - left); + if (use_gradient) { + /* There are two valid pixels on the left, use gradient */ + diff = input[offset + left] - input[offset + left - 1]; + output[offset + idx] = input[offset + left] + diff * (idx - left); + } else { + output[offset + idx] = input[offset + left]; + } } else if (left == 0) { /* There is only one valid pixel on the left, which is the only * valid pixel in this row, so use it's value everywhere */ |