int dst_startX = gX * (THREADS-ksX+1) + dst_x_off;
int dst_startY = (gY << 1) + dst_y_off;
- float dx_data[ksY+1],dy_data[ksY+1], data[3][ksY+1];
+ float data[3][ksY+1];
__local float temp[6][THREADS];
#ifdef BORDER_CONSTANT
for (int i=0; i < ksY+1; i++)
{
bool dx_con = dx_startX+col >= 0 && dx_startX+col < dx_whole_cols && dx_startY+i >= 0 && dx_startY+i < dx_whole_rows;
- int indexDx = (dx_startY+i)*(dx_step>>2)+(dx_startX+col);
+ int indexDx = mad24(dx_startY+i, dx_step>>2, dx_startX+col);
float dx_s = dx_con ? Dx[indexDx] : 0.0f;
- dx_data[i] = dx_s;
bool dy_con = dy_startX+col >= 0 && dy_startX+col < dy_whole_cols && dy_startY+i >= 0 && dy_startY+i < dy_whole_rows;
- int indexDy = (dy_startY+i)*(dy_step>>2)+(dy_startX+col);
+ int indexDy = mad24(dy_startY+i, dy_step>>2, dy_startX+col);
float dy_s = dy_con ? Dy[indexDy] : 0.0f;
- dy_data[i] = dy_s;
- data[0][i] = dx_data[i] * dx_data[i];
- data[1][i] = dx_data[i] * dy_data[i];
- data[2][i] = dy_data[i] * dy_data[i];
+ data[0][i] = dx_s * dx_s;
+ data[1][i] = dx_s * dy_s;
+ data[2][i] = dy_s * dy_s;
}
#else
int clamped_col = min(2*dst_cols, col);
int dx_selected_row = dx_startY+i, dx_selected_col = dx_startX+clamped_col;
EXTRAPOLATE(dx_selected_row, dx_whole_rows)
EXTRAPOLATE(dx_selected_col, dx_whole_cols)
- dx_data[i] = Dx[dx_selected_row * (dx_step>>2) + dx_selected_col];
+ float dx_s = Dx[mad24(dx_selected_row, dx_step>>2, dx_selected_col)];
int dy_selected_row = dy_startY+i, dy_selected_col = dy_startX+clamped_col;
EXTRAPOLATE(dy_selected_row, dy_whole_rows)
EXTRAPOLATE(dy_selected_col, dy_whole_cols)
- dy_data[i] = Dy[dy_selected_row * (dy_step>>2) + dy_selected_col];
+ float dy_s = Dy[mad24(dy_selected_row, dy_step>>2, dy_selected_col)];
- data[0][i] = dx_data[i] * dx_data[i];
- data[1][i] = dx_data[i] * dy_data[i];
- data[2][i] = dy_data[i] * dy_data[i];
+ data[0][i] = dx_s * dx_s;
+ data[1][i] = dx_s * dy_s;
+ data[2][i] = dy_s * dy_s;
}
#endif
float sum0 = 0.0f, sum1 = 0.0f, sum2 = 0.0f;
col += anX;
int posX = dst_startX - dst_x_off + col - anX;
int posY = (gly << 1);
- int till = (ksX + 1)%2;
+ int till = (ksX + 1) & 1;
float tmp_sum[6] = { 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f };
for (int k=0; k<6; k++)
{
float a = tmp_sum[0] * 0.5f;
float b = tmp_sum[2];
float c = tmp_sum[4] * 0.5f;
- *(__global float *)(dst + dst_index) = (float)((a+c) - sqrt((a-c)*(a-c) + b*b));
+ *(__global float *)(dst + dst_index) = (float)((a+c) - native_sqrt((a-c)*(a-c) + b*b));
}
if (posX < dst_cols && (posY + 1) < dst_rows)
{
float a = tmp_sum[1] * 0.5f;
float b = tmp_sum[3];
float c = tmp_sum[5] * 0.5f;
- *(__global float *)(dst + dst_index) = (float)((a+c) - sqrt((a-c)*(a-c) + b*b));
+ *(__global float *)(dst + dst_index) = (float)((a+c) - native_sqrt((a-c)*(a-c) + b*b));
}
#else
#error "No such corners type"