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fix bug of ocl::canny

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This commit is contained in:
yao 2012-09-04 08:51:08 +08:00
parent 778c31a1c8
commit 8f8a69d6f5
1 changed files with 21 additions and 19 deletions
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40
modules/ocl/src/kernels/imgproc_canny.cl
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@ -100,15 +100,17 @@ __kernel
__local int smem[16][18];
smem[lidy][lidx + 1] = src[gidx + gidy * src_step + src_offset];
if(lidx == 0)
{
smem[lidy][0] = src[max(gidx - 1, 0) + gidy * src_step + src_offset];
smem[lidy][17] = src[min(gidx + 16, cols - 1) + gidy * src_step + src_offset];
}
barrier(CLK_LOCAL_MEM_FENCE);
if(gidy < rows)
{
smem[lidy][lidx + 1] = src[gidx + gidy * src_step + src_offset];
if(lidx == 0)
{
smem[lidy][0] = src[max(gidx - 1, 0) + gidy * src_step + src_offset];
smem[lidy][17] = src[min(gidx + 16, cols - 1) + gidy * src_step + src_offset];
}
barrier(CLK_LOCAL_MEM_FENCE);
if(gidx < cols)
{
dx_buf[gidx + gidy * dx_buf_step + dx_buf_offset] =
@ -168,21 +170,21 @@ __kernel
__local int sdx[18][16];
__local int sdy[18][16];
sdx[lidy + 1][lidx] = dx_buf[gidx + gidy * dx_buf_step + dx_buf_offset];
sdy[lidy + 1][lidx] = dy_buf[gidx + gidy * dy_buf_step + dy_buf_offset];
if(lidy == 0)
{
sdx[0][lidx] = dx_buf[gidx + max(gidy - 1, 0) * dx_buf_step + dx_buf_offset];
sdx[17][lidx] = dx_buf[gidx + min(gidy + 16, rows - 1) * dx_buf_step + dx_buf_offset];
sdy[0][lidx] = dy_buf[gidx + max(gidy - 1, 0) * dy_buf_step + dy_buf_offset];
sdy[17][lidx] = dy_buf[gidx + min(gidy + 16, rows - 1) * dy_buf_step + dy_buf_offset];
}
barrier(CLK_LOCAL_MEM_FENCE);
if(gidx < cols)
{
sdx[lidy + 1][lidx] = dx_buf[gidx + gidy * dx_buf_step + dx_buf_offset];
sdy[lidy + 1][lidx] = dy_buf[gidx + gidy * dy_buf_step + dy_buf_offset];
if(lidy == 0)
{
sdx[0][lidx] = dx_buf[gidx + max(gidy - 1, 0) * dx_buf_step + dx_buf_offset];
sdx[17][lidx] = dx_buf[gidx + min(gidy + 16, rows - 1) * dx_buf_step + dx_buf_offset];
sdy[0][lidx] = dy_buf[gidx + max(gidy - 1, 0) * dy_buf_step + dy_buf_offset];
sdy[17][lidx] = dy_buf[gidx + min(gidy + 16, rows - 1) * dy_buf_step + dy_buf_offset];
}
barrier(CLK_LOCAL_MEM_FENCE);
if(gidy < rows)
{
int x = sdx[lidy][lidx] + 2 * sdx[lidy + 1][lidx] + sdx[lidy + 2][lidx];