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-rw-r--r--cuda/3d/par3d_fp.cu156
1 files changed, 115 insertions, 41 deletions
diff --git a/cuda/3d/par3d_fp.cu b/cuda/3d/par3d_fp.cu
index 3ce3d42..6f9ce40 100644
--- a/cuda/3d/par3d_fp.cu
+++ b/cuda/3d/par3d_fp.cu
@@ -128,6 +128,18 @@ struct DIR_Z {
__device__ float z(float f0, float f1, float f2) const { return f0; }
};
+struct SCALE_CUBE {
+ float fOutputScale;
+ __device__ float scale(float a1, float a2) const { return sqrt(a1*a1+a2*a2+1.0f) * fOutputScale; }
+};
+
+struct SCALE_NONCUBE {
+ float fScale1;
+ float fScale2;
+ float fOutputScale;
+ __device__ float scale(float a1, float a2) const { return sqrt(a1*a1*fScale1+a2*a2*fScale2+1.0f) * fOutputScale; }
+};
+
// threadIdx: x = u detector
@@ -136,11 +148,12 @@ struct DIR_Z {
// y = angle block
-template<class COORD>
+template<class COORD, class SCALE>
__global__ void par3D_FP_t(float* D_projData, unsigned int projPitch,
unsigned int startSlice,
unsigned int startAngle, unsigned int endAngle,
- const SDimensions3D dims, float fOutputScale)
+ const SDimensions3D dims,
+ SCALE sc)
{
COORD c;
@@ -161,6 +174,9 @@ __global__ void par3D_FP_t(float* D_projData, unsigned int projPitch,
const float fDetSY = gC_DetSY[angle] + 0.5f * fDetUY + 0.5f * fDetVY;
const float fDetSZ = gC_DetSZ[angle] + 0.5f * fDetUZ + 0.5f * fDetVZ;
+ const float a1 = c.c1(fRayX,fRayY,fRayZ) / c.c0(fRayX,fRayY,fRayZ);
+ const float a2 = c.c2(fRayX,fRayY,fRayZ) / c.c0(fRayX,fRayY,fRayZ);
+ const float fDistCorr = sc.scale(a1, a2);
const int detectorU = (blockIdx.x%((dims.iProjU+g_detBlockU-1)/g_detBlockU)) * g_detBlockU + threadIdx.x;
@@ -186,13 +202,9 @@ __global__ void par3D_FP_t(float* D_projData, unsigned int projPitch,
/* ray: (y) = (ay) * x + (by) */
/* (z) (az) (bz) */
- const float a1 = c.c1(fRayX,fRayY,fRayZ) / c.c0(fRayX,fRayY,fRayZ);
- const float a2 = c.c2(fRayX,fRayY,fRayZ) / c.c0(fRayX,fRayY,fRayZ);
const float b1 = c.c1(fDetX,fDetY,fDetZ) - a1 * c.c0(fDetX,fDetY,fDetZ);
const float b2 = c.c2(fDetX,fDetY,fDetZ) - a2 * c.c0(fDetX,fDetY,fDetZ);
- const float fDistCorr = sqrt(a1*a1+a2*a2+1.0f) * fOutputScale;
-
float fVal = 0.0f;
float f0 = startSlice + 0.5f;
@@ -218,7 +230,8 @@ template<class COORD>
__global__ void par3D_FP_SS_t(float* D_projData, unsigned int projPitch,
unsigned int startSlice,
unsigned int startAngle, unsigned int endAngle,
- const SDimensions3D dims, float fOutputScale)
+ const SDimensions3D dims, int iRaysPerDetDim,
+ SCALE_NONCUBE sc)
{
COORD c;
@@ -239,7 +252,9 @@ __global__ void par3D_FP_SS_t(float* D_projData, unsigned int projPitch,
const float fDetSY = gC_DetSY[angle] + 0.5f * fDetUY + 0.5f * fDetVY;
const float fDetSZ = gC_DetSZ[angle] + 0.5f * fDetUZ + 0.5f * fDetVZ;
-
+ const float a1 = c.c1(fRayX,fRayY,fRayZ) / c.c0(fRayX,fRayY,fRayZ);
+ const float a2 = c.c2(fRayX,fRayY,fRayZ) / c.c0(fRayX,fRayY,fRayZ);
+ const float fDistCorr = sc.scale(a1, a2);
const int detectorU = (blockIdx.x%((dims.iProjU+g_detBlockU-1)/g_detBlockU)) * g_detBlockU + threadIdx.x;
const int startDetectorV = (blockIdx.x/((dims.iProjU+g_detBlockU-1)/g_detBlockU)) * g_detBlockV;
@@ -251,7 +266,7 @@ __global__ void par3D_FP_SS_t(float* D_projData, unsigned int projPitch,
if (endSlice > c.nSlices(dims))
endSlice = c.nSlices(dims);
- const float fSubStep = 1.0f/dims.iRaysPerDetDim;
+ const float fSubStep = 1.0f/iRaysPerDetDim;
for (int detectorV = startDetectorV; detectorV < endDetectorV; ++detectorV)
{
@@ -259,9 +274,9 @@ __global__ void par3D_FP_SS_t(float* D_projData, unsigned int projPitch,
float fV = 0.0f;
float fdU = detectorU - 0.5f + 0.5f*fSubStep;
- for (int iSubU = 0; iSubU < dims.iRaysPerDetDim; ++iSubU, fdU+=fSubStep) {
+ for (int iSubU = 0; iSubU < iRaysPerDetDim; ++iSubU, fdU+=fSubStep) {
float fdV = detectorV - 0.5f + 0.5f*fSubStep;
- for (int iSubV = 0; iSubV < dims.iRaysPerDetDim; ++iSubV, fdV+=fSubStep) {
+ for (int iSubV = 0; iSubV < iRaysPerDetDim; ++iSubV, fdV+=fSubStep) {
/* Trace ray in direction Ray to (detectorU,detectorV) from */
/* X = startSlice to X = endSlice */
@@ -274,12 +289,9 @@ __global__ void par3D_FP_SS_t(float* D_projData, unsigned int projPitch,
/* ray: (y) = (ay) * x + (by) */
/* (z) (az) (bz) */
- const float a1 = c.c1(fRayX,fRayY,fRayZ) / c.c0(fRayX,fRayY,fRayZ);
- const float a2 = c.c2(fRayX,fRayY,fRayZ) / c.c0(fRayX,fRayY,fRayZ);
const float b1 = c.c1(fDetX,fDetY,fDetZ) - a1 * c.c0(fDetX,fDetY,fDetZ);
const float b2 = c.c2(fDetX,fDetY,fDetZ) - a2 * c.c0(fDetX,fDetY,fDetZ);
- const float fDistCorr = sqrt(a1*a1+a2*a2+1.0f) * fOutputScale;
float fVal = 0.0f;
@@ -295,13 +307,13 @@ __global__ void par3D_FP_SS_t(float* D_projData, unsigned int projPitch,
f2 += a2;
}
- fVal *= fDistCorr;
fV += fVal;
}
}
- D_projData[(detectorV*dims.iProjAngles+angle)*projPitch+detectorU] += fV / (dims.iRaysPerDetDim * dims.iRaysPerDetDim);
+ fV *= fDistCorr;
+ D_projData[(detectorV*dims.iProjAngles+angle)*projPitch+detectorU] += fV / (iRaysPerDetDim * iRaysPerDetDim);
}
}
@@ -324,7 +336,8 @@ template<class COORD>
__global__ void par3D_FP_SumSqW_t(float* D_projData, unsigned int projPitch,
unsigned int startSlice,
unsigned int startAngle, unsigned int endAngle,
- const SDimensions3D dims, float fOutputScale)
+ const SDimensions3D dims,
+ SCALE_NONCUBE sc)
{
COORD c;
@@ -345,6 +358,9 @@ __global__ void par3D_FP_SumSqW_t(float* D_projData, unsigned int projPitch,
const float fDetSY = gC_DetSY[angle] + 0.5f * fDetUY + 0.5f * fDetVY;
const float fDetSZ = gC_DetSZ[angle] + 0.5f * fDetUZ + 0.5f * fDetVZ;
+ const float a1 = c.c1(fRayX,fRayY,fRayZ) / c.c0(fRayX,fRayY,fRayZ);
+ const float a2 = c.c2(fRayX,fRayY,fRayZ) / c.c0(fRayX,fRayY,fRayZ);
+ const float fDistCorr = sc.scale(a1, a2);
const int detectorU = (blockIdx.x%((dims.iProjU+g_detBlockU-1)/g_detBlockU)) * g_detBlockU + threadIdx.x;
@@ -370,13 +386,9 @@ __global__ void par3D_FP_SumSqW_t(float* D_projData, unsigned int projPitch,
/* ray: (y) = (ay) * x + (by) */
/* (z) (az) (bz) */
- const float a1 = c.c1(fRayX,fRayY,fRayZ) / c.c0(fRayX,fRayY,fRayZ);
- const float a2 = c.c2(fRayX,fRayY,fRayZ) / c.c0(fRayX,fRayY,fRayZ);
const float b1 = c.c1(fDetX,fDetY,fDetZ) - a1 * c.c0(fDetX,fDetY,fDetZ);
const float b2 = c.c2(fDetX,fDetY,fDetZ) - a2 * c.c0(fDetX,fDetY,fDetZ);
- const float fDistCorr = sqrt(a1*a1+a2*a2+1.0f) * fOutputScale;
-
float fVal = 0.0f;
float f0 = startSlice + 0.5f;
@@ -385,12 +397,13 @@ __global__ void par3D_FP_SumSqW_t(float* D_projData, unsigned int projPitch,
for (int s = startSlice; s < endSlice; ++s)
{
- fVal += dirWeights(f1, c.nDim1(dims)) * dirWeights(f2, c.nDim2(dims)) * fDistCorr * fDistCorr;
+ fVal += dirWeights(f1, c.nDim1(dims)) * dirWeights(f2, c.nDim2(dims));
f0 += 1.0f;
f1 += a1;
f2 += a2;
}
+ fVal *= fDistCorr * fDistCorr;
D_projData[(detectorV*dims.iProjAngles+angle)*projPitch+detectorU] += fVal;
}
}
@@ -401,7 +414,7 @@ __global__ void par3D_FP_SumSqW_t(float* D_projData, unsigned int projPitch,
bool Par3DFP_Array_internal(cudaPitchedPtr D_projData,
const SDimensions3D& dims, unsigned int angleCount, const SPar3DProjection* angles,
- float fOutputScale)
+ const SProjectorParams3D& params)
{
// transfer angles to constant memory
float* tmp = new float[dims.iProjAngles];
@@ -436,6 +449,36 @@ bool Par3DFP_Array_internal(cudaPitchedPtr D_projData,
unsigned int blockEnd = 0;
int blockDirection = 0;
+ bool cube = true;
+ if (abs(params.fVolScaleX / params.fVolScaleY - 1.0) > 0.00001)
+ cube = false;
+ if (abs(params.fVolScaleX / params.fVolScaleZ - 1.0) > 0.00001)
+ cube = false;
+
+ SCALE_CUBE scube;
+ scube.fOutputScale = params.fOutputScale * params.fVolScaleX;
+
+ SCALE_NONCUBE snoncubeX;
+ float fS1 = params.fVolScaleY / params.fVolScaleX;
+ snoncubeX.fScale1 = fS1 * fS1;
+ float fS2 = params.fVolScaleZ / params.fVolScaleX;
+ snoncubeX.fScale2 = fS2 * fS2;
+ snoncubeX.fOutputScale = params.fOutputScale * params.fVolScaleX;
+
+ SCALE_NONCUBE snoncubeY;
+ fS1 = params.fVolScaleX / params.fVolScaleY;
+ snoncubeY.fScale1 = fS1 * fS1;
+ fS2 = params.fVolScaleY / params.fVolScaleY;
+ snoncubeY.fScale2 = fS2 * fS2;
+ snoncubeY.fOutputScale = params.fOutputScale * params.fVolScaleY;
+
+ SCALE_NONCUBE snoncubeZ;
+ fS1 = params.fVolScaleX / params.fVolScaleZ;
+ snoncubeZ.fScale1 = fS1 * fS1;
+ fS2 = params.fVolScaleY / params.fVolScaleZ;
+ snoncubeZ.fScale2 = fS2 * fS2;
+ snoncubeZ.fOutputScale = params.fOutputScale * params.fVolScaleZ;
+
// timeval t;
// tic(t);
@@ -473,22 +516,31 @@ bool Par3DFP_Array_internal(cudaPitchedPtr D_projData,
if (blockDirection == 0) {
for (unsigned int i = 0; i < dims.iVolX; i += g_blockSlices)
- if (dims.iRaysPerDetDim == 1)
- par3D_FP_t<DIR_X><<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), i, blockStart, blockEnd, dims, fOutputScale);
+ if (params.iRaysPerDetDim == 1)
+ if (cube)
+ par3D_FP_t<DIR_X><<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), i, blockStart, blockEnd, dims, scube);
+ else
+ par3D_FP_t<DIR_X><<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), i, blockStart, blockEnd, dims, snoncubeX);
else
- par3D_FP_SS_t<DIR_X><<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), i, blockStart, blockEnd, dims, fOutputScale);
+ par3D_FP_SS_t<DIR_X><<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), i, blockStart, blockEnd, dims, params.iRaysPerDetDim, snoncubeX);
} else if (blockDirection == 1) {
for (unsigned int i = 0; i < dims.iVolY; i += g_blockSlices)
- if (dims.iRaysPerDetDim == 1)
- par3D_FP_t<DIR_Y><<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), i, blockStart, blockEnd, dims, fOutputScale);
+ if (params.iRaysPerDetDim == 1)
+ if (cube)
+ par3D_FP_t<DIR_Y><<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), i, blockStart, blockEnd, dims, scube);
+ else
+ par3D_FP_t<DIR_Y><<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), i, blockStart, blockEnd, dims, snoncubeY);
else
- par3D_FP_SS_t<DIR_Y><<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), i, blockStart, blockEnd, dims, fOutputScale);
+ par3D_FP_SS_t<DIR_Y><<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), i, blockStart, blockEnd, dims, params.iRaysPerDetDim, snoncubeY);
} else if (blockDirection == 2) {
for (unsigned int i = 0; i < dims.iVolZ; i += g_blockSlices)
- if (dims.iRaysPerDetDim == 1)
- par3D_FP_t<DIR_Z><<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), i, blockStart, blockEnd, dims, fOutputScale);
+ if (params.iRaysPerDetDim == 1)
+ if (cube)
+ par3D_FP_t<DIR_Z><<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), i, blockStart, blockEnd, dims, scube);
+ else
+ par3D_FP_t<DIR_Z><<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), i, blockStart, blockEnd, dims, snoncubeZ);
else
- par3D_FP_SS_t<DIR_Z><<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), i, blockStart, blockEnd, dims, fOutputScale);
+ par3D_FP_SS_t<DIR_Z><<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), i, blockStart, blockEnd, dims, params.iRaysPerDetDim, snoncubeZ);
}
}
@@ -514,7 +566,7 @@ bool Par3DFP_Array_internal(cudaPitchedPtr D_projData,
bool Par3DFP(cudaPitchedPtr D_volumeData,
cudaPitchedPtr D_projData,
const SDimensions3D& dims, const SPar3DProjection* angles,
- float fOutputScale)
+ const SProjectorParams3D& params)
{
// transfer volume to array
cudaArray* cuArray = allocateVolumeArray(dims);
@@ -533,7 +585,7 @@ bool Par3DFP(cudaPitchedPtr D_volumeData,
ret = Par3DFP_Array_internal(D_subprojData,
dims, iEndAngle - iAngle, angles + iAngle,
- fOutputScale);
+ params);
if (!ret)
break;
}
@@ -548,7 +600,7 @@ bool Par3DFP(cudaPitchedPtr D_volumeData,
bool Par3DFP_SumSqW(cudaPitchedPtr D_volumeData,
cudaPitchedPtr D_projData,
const SDimensions3D& dims, const SPar3DProjection* angles,
- float fOutputScale)
+ const SProjectorParams3D& params)
{
// transfer angles to constant memory
float* tmp = new float[dims.iProjAngles];
@@ -583,6 +635,28 @@ bool Par3DFP_SumSqW(cudaPitchedPtr D_volumeData,
unsigned int blockEnd = 0;
int blockDirection = 0;
+ SCALE_NONCUBE snoncubeX;
+ float fS1 = params.fVolScaleY / params.fVolScaleX;
+ snoncubeX.fScale1 = fS1 * fS1;
+ float fS2 = params.fVolScaleZ / params.fVolScaleX;
+ snoncubeX.fScale2 = fS2 * fS2;
+ snoncubeX.fOutputScale = params.fOutputScale * params.fVolScaleX;
+
+ SCALE_NONCUBE snoncubeY;
+ fS1 = params.fVolScaleX / params.fVolScaleY;
+ snoncubeY.fScale1 = fS1 * fS1;
+ fS2 = params.fVolScaleY / params.fVolScaleY;
+ snoncubeY.fScale2 = fS2 * fS2;
+ snoncubeY.fOutputScale = params.fOutputScale * params.fVolScaleY;
+
+ SCALE_NONCUBE snoncubeZ;
+ fS1 = params.fVolScaleX / params.fVolScaleZ;
+ snoncubeZ.fScale1 = fS1 * fS1;
+ fS2 = params.fVolScaleY / params.fVolScaleZ;
+ snoncubeZ.fScale2 = fS2 * fS2;
+ snoncubeZ.fOutputScale = params.fOutputScale * params.fVolScaleZ;
+
+
// timeval t;
// tic(t);
@@ -620,8 +694,8 @@ bool Par3DFP_SumSqW(cudaPitchedPtr D_volumeData,
if (blockDirection == 0) {
for (unsigned int i = 0; i < dims.iVolX; i += g_blockSlices)
- if (dims.iRaysPerDetDim == 1)
- par3D_FP_SumSqW_t<DIR_X><<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), i, blockStart, blockEnd, dims, fOutputScale);
+ if (params.iRaysPerDetDim == 1)
+ par3D_FP_SumSqW_t<DIR_X><<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), i, blockStart, blockEnd, dims, snoncubeX);
else
#if 0
par3D_FP_SS_SumSqW_dirX<<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), i, blockStart, blockEnd, dims, fOutputScale);
@@ -630,8 +704,8 @@ bool Par3DFP_SumSqW(cudaPitchedPtr D_volumeData,
#endif
} else if (blockDirection == 1) {
for (unsigned int i = 0; i < dims.iVolY; i += g_blockSlices)
- if (dims.iRaysPerDetDim == 1)
- par3D_FP_SumSqW_t<DIR_Y><<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), i, blockStart, blockEnd, dims, fOutputScale);
+ if (params.iRaysPerDetDim == 1)
+ par3D_FP_SumSqW_t<DIR_Y><<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), i, blockStart, blockEnd, dims, snoncubeY);
else
#if 0
par3D_FP_SS_SumSqW_dirY<<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), i, blockStart, blockEnd, dims, fOutputScale);
@@ -640,8 +714,8 @@ bool Par3DFP_SumSqW(cudaPitchedPtr D_volumeData,
#endif
} else if (blockDirection == 2) {
for (unsigned int i = 0; i < dims.iVolZ; i += g_blockSlices)
- if (dims.iRaysPerDetDim == 1)
- par3D_FP_SumSqW_t<DIR_Z><<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), i, blockStart, blockEnd, dims, fOutputScale);
+ if (params.iRaysPerDetDim == 1)
+ par3D_FP_SumSqW_t<DIR_Z><<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), i, blockStart, blockEnd, dims, snoncubeZ);
else
#if 0
par3D_FP_SS_SumSqW_dirZ<<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), i, blockStart, blockEnd, dims, fOutputScale);
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-20 07:38:14 +0000