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optimized gpumat::setTo()

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This commit is contained in:
Andrey Morozov 2010-07-27 08:56:48 +00:00
parent 12dc52c2e7
commit 290c967b8f
1 changed files with 57 additions and 5 deletions
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62
modules/gpu/src/cuda/matrix_operations.cu
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@ -77,6 +77,58 @@ namespace mat_operators
////////////////////////////////// SetTo //////////////////////////////////
///////////////////////////////////////////////////////////////////////////
template <typename T>
class shift_and_sizeof;
template <>
class shift_and_sizeof<char>
{
public:
enum { shift = 0 };
};
template <>
class shift_and_sizeof<unsigned char>
{
public:
enum { shift = 0 };
};
template <>
class shift_and_sizeof<short>
{
public:
enum { shift = 1 };
};
template <>
class shift_and_sizeof<unsigned short>
{
public:
enum { shift = 1 };
};
template <>
class shift_and_sizeof<int>
{
public:
enum { shift = 2 };
};
template <>
class shift_and_sizeof<float>
{
public:
enum { shift = 2 };
};
template <>
class shift_and_sizeof<double>
{
public:
enum { shift = 3 };
};
template<typename T>
__global__ void kernel_set_to_without_mask(T * mat, int cols, int rows, int step, int channels)
{
@ -85,7 +137,7 @@ namespace mat_operators
if ((x < cols * channels ) && (y < rows))
{
size_t idx = y * (step / sizeof(T)) + x;
size_t idx = y * ( step >> shift_and_sizeof<T>::shift ) + x;
mat[idx] = scalar_d[ x % channels ];
}
}
@ -99,7 +151,7 @@ namespace mat_operators
if ((x < cols * channels ) && (y < rows))
if (mask[y * step_mask + x / channels] != 0)
{
size_t idx = y * (step / sizeof(T)) + x;
size_t idx = y * ( step >> shift_and_sizeof<T>::shift ) + x;
mat[idx] = scalar_d[ x % channels ];
}
}
@ -317,7 +369,7 @@ namespace cv
SetToFunc_without_mask func = tab[depth];
if (func == 0)
if (func == 0)
cv::gpu::error("Unsupported convert operation", __FILE__, __LINE__);
func(mat, channels, stream);
@ -325,7 +377,7 @@ namespace cv
extern "C" void set_to_with_mask(DevMem2D mat, int depth, const double * scalar, const DevMem2D& mask, int channels, const cudaStream_t & stream)
{
{
cudaSafeCall( cudaMemcpyToSymbol(mat_operators::scalar_d, scalar, sizeof(double) * 4));
static SetToFunc_with_mask tab[8] =
@ -342,7 +394,7 @@ namespace cv
SetToFunc_with_mask func = tab[depth];
if (func == 0)
if (func == 0)
cv::gpu::error("Unsupported convert operation", __FILE__, __LINE__);
func(mat, mask, channels, stream);