}
}
+///////////////////////////////////// RGB <-> XYZ //////////////////////////////////////
+__kernel void RGB2XYZ(int cols, int rows, int src_step, int dst_step,
+ int bidx, __global const DATA_TYPE* src, __global DATA_TYPE* dst,
+ int src_offset, int dst_offset, __constant COEFF_TYPE * coeffs)
+{
+ int dx = get_global_id(0);
+ int dy = get_global_id(1);
+
+ if (dy < rows && dx < cols)
+ {
+ dx <<= 2;
+ int src_idx = mad24(dy, src_step, src_offset + dx);
+ int dst_idx = mad24(dy, dst_step, dst_offset + dx);
+
+ DATA_TYPE r = src[src_idx], g = src[src_idx + 1], b = src[src_idx + 2];
+
+#ifdef DEPTH_5
+ float x = r * coeffs[0] + g * coeffs[1] + b * coeffs[2];
+ float y = r * coeffs[3] + g * coeffs[4] + b * coeffs[5];
+ float z = r * coeffs[6] + g * coeffs[7] + b * coeffs[8];
+#else
+ int x = CV_DESCALE(r * coeffs[0] + g * coeffs[1] + b * coeffs[2], xyz_shift);
+ int y = CV_DESCALE(r * coeffs[3] + g * coeffs[4] + b * coeffs[5], xyz_shift);
+ int z = CV_DESCALE(r * coeffs[6] + g * coeffs[7] + b * coeffs[8], xyz_shift);
+#endif
+ dst[dst_idx] = SAT_CAST(x);
+ dst[dst_idx + 1] = SAT_CAST(y);
+ dst[dst_idx + 2] = SAT_CAST(z);
+ }
+}
+
+__kernel void XYZ2RGB(int cols, int rows, int src_step, int dst_step,
+ int bidx, __global const DATA_TYPE* src, __global DATA_TYPE* dst,
+ int src_offset, int dst_offset, __constant COEFF_TYPE * coeffs)
+{
+ int dx = get_global_id(0);
+ int dy = get_global_id(1);
+
+ if (dy < rows && dx < cols)
+ {
+ dx <<= 2;
+ int src_idx = mad24(dy, src_step, src_offset + dx);
+ int dst_idx = mad24(dy, dst_step, dst_offset + dx);
+
+ DATA_TYPE x = src[src_idx], y = src[src_idx + 1], z = src[src_idx + 2];
+
+#ifdef DEPTH_5
+ float b = x * coeffs[0] + y * coeffs[1] + z * coeffs[2];
+ float g = x * coeffs[3] + y * coeffs[4] + z * coeffs[5];
+ float r = x * coeffs[6] + y * coeffs[7] + z * coeffs[8];
+#else
+ int b = CV_DESCALE(x * coeffs[0] + y * coeffs[1] + z * coeffs[2], xyz_shift);
+ int g = CV_DESCALE(x * coeffs[3] + y * coeffs[4] + z * coeffs[5], xyz_shift);
+ int r = CV_DESCALE(x * coeffs[6] + y * coeffs[7] + z * coeffs[8], xyz_shift);
+#endif
+ dst[dst_idx] = SAT_CAST(b);
+ dst[dst_idx + 1] = SAT_CAST(g);
+ dst[dst_idx + 2] = SAT_CAST(r);
+#if dcn == 4
+ dst[dst_idx + 3] = MAX_NUM;
+#endif
+ }
+}
BLOCK_SIZE = 256
};
-
-__constant float c_YCrCb2RGBCoeffs_f[4] = { 1.403f, -0.714f, -0.344f, 1.773f };
-__constant int c_YCrCb2RGBCoeffs_i[4] = { 22987, -11698, -5636, 29049 };
-
-__kernel void YCrCb2RGB(int cols, int rows, int src_step, int dst_step,
- int bidx, __global const DATA_TYPE* src, __global DATA_TYPE* dst,
- int src_offset, int dst_offset)
-{
- int x = get_global_id(0);
- int y = get_global_id(1);
-
- if (y < rows && x < cols)
- {
- x <<= 2;
- int src_idx = mad24(y, src_step, src_offset + x);
- int dst_idx = mad24(y, dst_step, dst_offset + x);
-
- DATA_TYPE ycrcb[] = { src[src_idx], src[src_idx + 1], src[src_idx + 2] };
-
-#ifdef DEPTH_5
- __constant float * coeff = c_YCrCb2RGBCoeffs_f;
- float r = ycrcb[0] + coeff[0] * (ycrcb[1] - HALF_MAX);
- float g = ycrcb[0] + coeff[1] * (ycrcb[1] - HALF_MAX) + coeff[2] * (ycrcb[2] - HALF_MAX);
- float b = ycrcb[0] + coeff[3] * (ycrcb[2] - HALF_MAX);
-#else
- __constant int * coeff = c_YCrCb2RGBCoeffs_i;
- int r = ycrcb[0] + CV_DESCALE(coeff[0] * (ycrcb[1] - HALF_MAX), yuv_shift);
- int g = ycrcb[0] + CV_DESCALE(coeff[1] * (ycrcb[1] - HALF_MAX) + coeff[2] * (ycrcb[2] - HALF_MAX), yuv_shift);
- int b = ycrcb[0] + CV_DESCALE(coeff[3] * (ycrcb[2] - HALF_MAX), yuv_shift);
-#endif
-
- dst[dst_idx + (bidx^2)] = SAT_CAST(r);
- dst[dst_idx + 1] = SAT_CAST(g);
- dst[dst_idx + bidx] = SAT_CAST(b);
-#if dcn == 4
- dst[dst_idx + 3] = MAX_NUM;
-#endif
- }
-}
-
///////////////////////////////////// RGB <-> XYZ //////////////////////////////////////
__kernel void RGB2XYZ(int cols, int rows, int src_step, int dst_step,