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Code Packages Releases Wiki Activity

RGB[A] <- RGB5x5

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This commit is contained in:
Ilya Lavrenov
2013-11-27 20:00:35 +04:00
parent 81b9c9c104
commit 8a23646897
4 changed files with 49 additions and 94 deletions
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modules/imgproc/src/color.cpp
+15 -1
View File
@@ -92,6 +92,7 @@
#include "precomp.hpp"
#include "opencl_kernels.hpp"
#include <limits>
#include <iostream>
#define CV_DESCALE(x,n) (((x) + (1 << ((n)-1))) >> (n))
@@ -2728,7 +2729,20 @@ static bool ocl_cvtColor( InputArray _src, OutputArray _dst, int code, int dcn )
int greenbits = code == COLOR_BGR5652BGR || code == COLOR_BGR5652RGB ||
code == COLOR_BGR5652BGRA || code == COLOR_BGR5652RGBA ? 6 : 5;
k.create("RGB5x52RGB", ocl::imgproc::cvtcolor_oclsrc,
format("-D depth=%d -D scn=2 -D dcn=%s -D bidx=%d -D greenbits=%d", depth, scn, dcn, bidx, greenbits));
format("-D depth=%d -D scn=2 -D dcn=%d -D bidx=%d -D greenbits=%d", depth, dcn, bidx, greenbits));
break;
}
case COLOR_BGR2BGR565: case COLOR_BGR2BGR555: case COLOR_RGB2BGR565: case COLOR_RGB2BGR555:
case COLOR_BGRA2BGR565: case COLOR_BGRA2BGR555: case COLOR_RGBA2BGR565: case COLOR_RGBA2BGR555:
{
CV_Assert((scn == 3 || scn == 4) && depth == CV_8U );
bidx = code == COLOR_BGR2BGR565 || code == COLOR_BGR2BGR555 ||
code == COLOR_BGRA2BGR565 || code == COLOR_BGRA2BGR555 ? 0 : 2;
int greenbits = code == COLOR_BGR2BGR565 || code == COLOR_RGB2BGR565 ||
code == COLOR_BGRA2BGR565 || code == COLOR_RGBA2BGR565 ? 6 : 5;
dcn = 2;
k.create("RGB2RGB5x5", ocl::imgproc::cvtcolor_oclsrc,
format("-D depth=%d -D scn=%d -D dcn=2 -D bidx=%d -D greenbits=%d", depth, scn, bidx, greenbits));
break;
}
case COLOR_BGR2GRAY: case COLOR_BGRA2GRAY:
modules/imgproc/src/opencl/cvtcolor.cl
+20 -20
View File
@@ -490,28 +490,28 @@ __kernel void RGB5x52RGB(__global const uchar* src, int src_step, int src_offset
}
}
//__kernel void RGB2RGB5x5(int cols, int rows, int src_step, int dst_step, int bidx,
// __global const uchar * src, __global ushort * dst,
// int src_offset, int dst_offset)
//{
// int x = get_global_id(0);
// int y = get_global_id(1);
__kernel void RGB2RGB5x5(__global const uchar* src, int src_step, int src_offset,
__global uchar* dst, int dst_step, int dst_offset,
int rows, int cols)
{
int x = get_global_id(0);
int y = get_global_id(1);
// if (y < rows && x < cols)
// {
// int src_idx = mad24(y, src_step, src_offset + (x << 2));
// int dst_idx = mad24(y, dst_step, dst_offset + x);
if (y < rows && x < cols)
{
int src_idx = mad24(y, src_step, src_offset + x * scnbytes);
int dst_idx = mad24(y, dst_step, dst_offset + x * dcnbytes);
//#if greenbits == 6
// dst[dst_idx] = (ushort)((src[src_idx + bidx] >> 3)|((src[src_idx + 1]&~3) << 3)|((src[src_idx + (bidx^2)]&~7) << 8));
//#elif scn == 3
// dst[dst_idx] = (ushort)((src[src_idx + bidx] >> 3)|((src[src_idx + 1]&~7) << 2)|((src[src_idx + (bidx^2)]&~7) << 7));
//#else
// dst[dst_idx] = (ushort)((src[src_idx + bidx] >> 3)|((src[src_idx + 1]&~7) << 2)|
// ((src[src_idx + (bidx^2)]&~7) << 7)|(src[src_idx + 3] ? 0x8000 : 0));
//#endif
// }
//}
#if greenbits == 6
*((__global ushort*)(dst + dst_idx)) = (ushort)((src[src_idx + bidx] >> 3)|((src[src_idx + 1]&~3) << 3)|((src[src_idx + (bidx^2)]&~7) << 8));
#elif scn == 3
*((__global ushort*)(dst + dst_idx)) = (ushort)((src[src_idx + bidx] >> 3)|((src[src_idx + 1]&~7) << 2)|((src[src_idx + (bidx^2)]&~7) << 7));
#else
*((__global ushort*)(dst + dst_idx)) = (ushort)((src[src_idx + bidx] >> 3)|((src[src_idx + 1]&~7) << 2)|
((src[src_idx + (bidx^2)]&~7) << 7)|(src[src_idx + 3] ? 0x8000 : 0));
#endif
}
}