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Working but crashing on dealloc of command queue
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#pragma OPENCL EXTENSION cl_khr_fp64 : enable | ||
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float calcFirstDer( float x11, float x21, float x31, float x12, float x22, float x32, float x13, float x23, float x33, | ||
float mInputNodataValue, float mOutputNodataValue, double mZFactor, double mCellSize ) | ||
{ | ||
//the basic formula would be simple, but we need to test for nodata values... | ||
//X: return (( (x31 - x11) + 2 * (x32 - x12) + (x33 - x13) ) / (8 * mCellSizeX)); | ||
//Y: return (((x11 - x13) + 2 * (x21 - x23) + (x31 - x33)) / ( 8 * mCellSizeY)); | ||
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int weight = 0; | ||
double sum = 0; | ||
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//first row | ||
if ( x31 != mInputNodataValue && x11 != mInputNodataValue ) //the normal case | ||
{ | ||
sum += ( x31 - x11 ); | ||
weight += 2; | ||
} | ||
else if ( x31 == mInputNodataValue && x11 != mInputNodataValue && x21 != mInputNodataValue ) //probably 3x3 window is at the border | ||
{ | ||
sum += ( x21 - x11 ); | ||
weight += 1; | ||
} | ||
else if ( x11 == mInputNodataValue && x31 != mInputNodataValue && x21 != mInputNodataValue ) //probably 3x3 window is at the border | ||
{ | ||
sum += ( x31 - x21 ); | ||
weight += 1; | ||
} | ||
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//second row | ||
if ( x32 != mInputNodataValue && x12 != mInputNodataValue ) //the normal case | ||
{ | ||
sum += 2.0f * ( x32 - x12 ); | ||
weight += 4; | ||
} | ||
else if ( x32 == mInputNodataValue && x12 != mInputNodataValue && x22 != mInputNodataValue ) | ||
{ | ||
sum += 2.0f * ( x22 - x12 ); | ||
weight += 2; | ||
} | ||
else if ( x12 == mInputNodataValue && x32 != mInputNodataValue && x22 != mInputNodataValue ) | ||
{ | ||
sum += 2.0f * ( x32 - x22 ); | ||
weight += 2; | ||
} | ||
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//third row | ||
if ( x33 != mInputNodataValue && x13 != mInputNodataValue ) //the normal case | ||
{ | ||
sum += ( x33 - x13 ); | ||
weight += 2; | ||
} | ||
else if ( x33 == mInputNodataValue && x13 != mInputNodataValue && x23 != mInputNodataValue ) | ||
{ | ||
sum += ( x23 - x13 ); | ||
weight += 1; | ||
} | ||
else if ( x13 == mInputNodataValue && x33 != mInputNodataValue && x23 != mInputNodataValue ) | ||
{ | ||
sum += ( x33 - x23 ); | ||
weight += 1; | ||
} | ||
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if ( weight == 0 ) | ||
{ | ||
return mOutputNodataValue; | ||
} | ||
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return sum / ( weight * mCellSize ) * mZFactor; | ||
} | ||
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__kernel void processNineCellWindow( __global float *scanLine1, | ||
__global float *scanLine2, | ||
__global float *scanLine3, | ||
__global float *resultLine, | ||
__global float *mInputNodataValue, | ||
__global float *mOutputNodataValue, | ||
__global double *mZFactor, | ||
__global double *mCellSizeX, | ||
__global double *mCellSizeY | ||
) { | ||
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// Get the index of the current element | ||
int i = get_global_id(0); | ||
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// Do the operation | ||
//return (( (x31 - x11) + 2 * (x32 - x12) + (x33 - x13) ) / (8 * mCellSizeX)) | ||
float derX = calcFirstDer( scanLine1[i], scanLine2[i], scanLine3[i], | ||
scanLine1[i+1], scanLine2[i+1], scanLine3[i+1], | ||
scanLine1[i+2], scanLine2[i+2], scanLine3[i+2], | ||
*mInputNodataValue, *mOutputNodataValue, *mZFactor, *mCellSizeX | ||
); | ||
//return (((x11 - x13) + 2 * (x21 - x23) + (x31 - x33)) / ( 8 * mCellSizeY)); | ||
float derY = calcFirstDer( scanLine1[i+2], scanLine1[i+1], scanLine1[i], | ||
scanLine2[i+2], scanLine2[i+1], scanLine2[i], | ||
scanLine3[i+2], scanLine3[i+1], scanLine3[i], | ||
*mInputNodataValue, *mOutputNodataValue, *mZFactor, *mCellSizeY | ||
); | ||
if ( derX == *mOutputNodataValue || derY == *mOutputNodataValue ) | ||
{ | ||
resultLine[i] = *mOutputNodataValue; | ||
} | ||
else | ||
{ | ||
double res = sqrt( derX * derX + derY * derY ); | ||
res = atanpi( res ); | ||
resultLine[i] = (float)res * 180.0; | ||
} | ||
} |