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Diffstat (limited to 'cuda/3d/par3d_fp.cu')
-rw-r--r--cuda/3d/par3d_fp.cu68
1 files changed, 29 insertions, 39 deletions
diff --git a/cuda/3d/par3d_fp.cu b/cuda/3d/par3d_fp.cu
index 5daddc1..b2178ec 100644
--- a/cuda/3d/par3d_fp.cu
+++ b/cuda/3d/par3d_fp.cu
@@ -35,10 +35,6 @@ along with the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
#include <cuda.h>
-typedef texture<float, 3, cudaReadModeElementType> texture3D;
-
-static texture3D gT_par3DVolumeTexture;
-
namespace astraCUDA3d {
static const unsigned int g_anglesPerBlock = 4;
@@ -63,24 +59,6 @@ __constant__ float gC_DetVY[g_MaxAngles];
__constant__ float gC_DetVZ[g_MaxAngles];
-static bool bindVolumeDataTexture(const cudaArray* array)
-{
- cudaChannelFormatDesc channelDesc = cudaCreateChannelDesc<float>();
-
- gT_par3DVolumeTexture.addressMode[0] = cudaAddressModeBorder;
- gT_par3DVolumeTexture.addressMode[1] = cudaAddressModeBorder;
- gT_par3DVolumeTexture.addressMode[2] = cudaAddressModeBorder;
- gT_par3DVolumeTexture.filterMode = cudaFilterModeLinear;
- gT_par3DVolumeTexture.normalized = false;
-
- cudaBindTextureToArray(gT_par3DVolumeTexture, array, channelDesc);
-
- // TODO: error value?
-
- return true;
-}
-
-
// x=0, y=1, z=2
struct DIR_X {
__device__ float nSlices(const SDimensions3D& dims) const { return dims.iVolX; }
@@ -89,7 +67,7 @@ struct DIR_X {
__device__ float c0(float x, float y, float z) const { return x; }
__device__ float c1(float x, float y, float z) const { return y; }
__device__ float c2(float x, float y, float z) const { return z; }
- __device__ float tex(float f0, float f1, float f2) const { return tex3D(gT_par3DVolumeTexture, f0, f1, f2); }
+ __device__ float tex(cudaTextureObject_t tex, float f0, float f1, float f2) const { return tex3D<float>(tex, f0, f1, f2); }
__device__ float x(float f0, float f1, float f2) const { return f0; }
__device__ float y(float f0, float f1, float f2) const { return f1; }
__device__ float z(float f0, float f1, float f2) const { return f2; }
@@ -103,7 +81,7 @@ struct DIR_Y {
__device__ float c0(float x, float y, float z) const { return y; }
__device__ float c1(float x, float y, float z) const { return x; }
__device__ float c2(float x, float y, float z) const { return z; }
- __device__ float tex(float f0, float f1, float f2) const { return tex3D(gT_par3DVolumeTexture, f1, f0, f2); }
+ __device__ float tex(cudaTextureObject_t tex, float f0, float f1, float f2) const { return tex3D<float>(tex, f1, f0, f2); }
__device__ float x(float f0, float f1, float f2) const { return f1; }
__device__ float y(float f0, float f1, float f2) const { return f0; }
__device__ float z(float f0, float f1, float f2) const { return f2; }
@@ -117,7 +95,7 @@ struct DIR_Z {
__device__ float c0(float x, float y, float z) const { return z; }
__device__ float c1(float x, float y, float z) const { return x; }
__device__ float c2(float x, float y, float z) const { return y; }
- __device__ float tex(float f0, float f1, float f2) const { return tex3D(gT_par3DVolumeTexture, f1, f2, f0); }
+ __device__ float tex(cudaTextureObject_t tex, float f0, float f1, float f2) const { return tex3D<float>(tex, f1, f2, f0); }
__device__ float x(float f0, float f1, float f2) const { return f1; }
__device__ float y(float f0, float f1, float f2) const { return f2; }
__device__ float z(float f0, float f1, float f2) const { return f0; }
@@ -145,6 +123,7 @@ struct SCALE_NONCUBE {
template<class COORD, class SCALE>
__global__ void par3D_FP_t(float* D_projData, unsigned int projPitch,
+ cudaTextureObject_t tex,
unsigned int startSlice,
unsigned int startAngle, unsigned int endAngle,
const SDimensions3D dims,
@@ -210,7 +189,7 @@ __global__ void par3D_FP_t(float* D_projData, unsigned int projPitch,
for (int s = startSlice; s < endSlice; ++s)
{
- fVal += c.tex(f0, f1, f2);
+ fVal += c.tex(tex, f0, f1, f2);
f0 += 1.0f;
f1 += a1;
f2 += a2;
@@ -225,6 +204,7 @@ __global__ void par3D_FP_t(float* D_projData, unsigned int projPitch,
// Supersampling version
template<class COORD>
__global__ void par3D_FP_SS_t(float* D_projData, unsigned int projPitch,
+ cudaTextureObject_t tex,
unsigned int startSlice,
unsigned int startAngle, unsigned int endAngle,
const SDimensions3D dims, int iRaysPerDetDim,
@@ -301,7 +281,7 @@ __global__ void par3D_FP_SS_t(float* D_projData, unsigned int projPitch,
for (int s = startSlice; s < endSlice; ++s)
{
- fVal += c.tex(f0, f1, f2);
+ fVal += c.tex(tex, f0, f1, f2);
f0 += 1.0f;
f1 += a1;
f2 += a2;
@@ -415,7 +395,9 @@ __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,
+ cudaTextureObject_t D_texObj,
+ const SDimensions3D& dims,
+ unsigned int angleCount, const SPar3DProjection* angles,
const SProjectorParams3D& params)
{
// transfer angles to constant memory
@@ -520,29 +502,29 @@ bool Par3DFP_Array_internal(cudaPitchedPtr D_projData,
for (unsigned int i = 0; i < dims.iVolX; i += g_blockSlices)
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);
+ par3D_FP_t<DIR_X><<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), D_texObj, 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);
+ par3D_FP_t<DIR_X><<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), D_texObj,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, params.iRaysPerDetDim, snoncubeX);
+ par3D_FP_SS_t<DIR_X><<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), D_texObj,i, blockStart, blockEnd, dims, params.iRaysPerDetDim, snoncubeX);
} else if (blockDirection == 1) {
for (unsigned int i = 0; i < dims.iVolY; i += g_blockSlices)
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);
+ par3D_FP_t<DIR_Y><<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), D_texObj,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);
+ par3D_FP_t<DIR_Y><<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), D_texObj,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, params.iRaysPerDetDim, snoncubeY);
+ par3D_FP_SS_t<DIR_Y><<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), D_texObj,i, blockStart, blockEnd, dims, params.iRaysPerDetDim, snoncubeY);
} else if (blockDirection == 2) {
for (unsigned int i = 0; i < dims.iVolZ; i += g_blockSlices)
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);
+ par3D_FP_t<DIR_Z><<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), D_texObj,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);
+ par3D_FP_t<DIR_Z><<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), D_texObj,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, params.iRaysPerDetDim, snoncubeZ);
+ par3D_FP_SS_t<DIR_Z><<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), D_texObj,i, blockStart, blockEnd, dims, params.iRaysPerDetDim, snoncubeZ);
}
}
@@ -569,10 +551,16 @@ bool Par3DFP(cudaPitchedPtr D_volumeData,
const SDimensions3D& dims, const SPar3DProjection* angles,
const SProjectorParams3D& params)
{
+
// transfer volume to array
cudaArray* cuArray = allocateVolumeArray(dims);
transferVolumeToArray(D_volumeData, cuArray, dims);
- bindVolumeDataTexture(cuArray);
+
+ cudaTextureObject_t D_texObj;
+ if (!createTextureObject3D(cuArray, D_texObj)) {
+ cudaFreeArray(cuArray);
+ return false;
+ }
bool ret;
@@ -584,7 +572,7 @@ bool Par3DFP(cudaPitchedPtr D_volumeData,
cudaPitchedPtr D_subprojData = D_projData;
D_subprojData.ptr = (char*)D_projData.ptr + iAngle * D_projData.pitch;
- ret = Par3DFP_Array_internal(D_subprojData,
+ ret = Par3DFP_Array_internal(D_subprojData, D_texObj,
dims, iEndAngle - iAngle, angles + iAngle,
params);
if (!ret)
@@ -593,6 +581,8 @@ bool Par3DFP(cudaPitchedPtr D_volumeData,
cudaFreeArray(cuArray);
+ cudaDestroyTextureObject(D_texObj);
+
return ret;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-13 10:11:54 +0000