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-rw-r--r--cuda/3d/cone_bp.cu62
1 files changed, 24 insertions, 38 deletions
diff --git a/cuda/3d/cone_bp.cu b/cuda/3d/cone_bp.cu
index e265304..41d781c 100644
--- a/cuda/3d/cone_bp.cu
+++ b/cuda/3d/cone_bp.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_coneProjTexture;
-
namespace astraCUDA3d {
static const unsigned int g_volBlockZ = 6;
@@ -57,28 +53,12 @@ struct DevConeParams {
__constant__ DevConeParams gC_C[g_MaxAngles];
-bool bindProjDataTexture(const cudaArray* array)
-{
- cudaChannelFormatDesc channelDesc = cudaCreateChannelDesc<float>();
-
- gT_coneProjTexture.addressMode[0] = cudaAddressModeBorder;
- gT_coneProjTexture.addressMode[1] = cudaAddressModeBorder;
- gT_coneProjTexture.addressMode[2] = cudaAddressModeBorder;
- gT_coneProjTexture.filterMode = cudaFilterModeLinear;
- gT_coneProjTexture.normalized = false;
-
- cudaBindTextureToArray(gT_coneProjTexture, array, channelDesc);
-
- // TODO: error value?
-
- return true;
-}
-
-
//__launch_bounds__(32*16, 4)
template<bool FDKWEIGHT, unsigned int ZSIZE>
-__global__ void dev_cone_BP(void* D_volData, unsigned int volPitch, int startAngle,
- int angleOffset, const astraCUDA3d::SDimensions3D dims,
+__global__ void dev_cone_BP(void* D_volData, unsigned int volPitch,
+ cudaTextureObject_t tex,
+ int startAngle, int angleOffset,
+ const astraCUDA3d::SDimensions3D dims,
float fOutputScale)
{
float* volData = (float*)D_volData;
@@ -133,7 +113,7 @@ __global__ void dev_cone_BP(void* D_volData, unsigned int volPitch, int startAng
fr = __fdividef(1.0f, fDen);
fU = fUNum * fr;
fV = fVNum * fr;
- float fVal = tex3D(gT_coneProjTexture, fU, fAngle, fV);
+ float fVal = tex3D<float>(tex, fU, fAngle, fV);
Z[idx] += fr*fr*fVal;
fUNum += fCu.z;
@@ -154,7 +134,7 @@ __global__ void dev_cone_BP(void* D_volData, unsigned int volPitch, int startAng
// supersampling version
-__global__ void dev_cone_BP_SS(void* D_volData, unsigned int volPitch, int startAngle, int angleOffset, const SDimensions3D dims, int iRaysPerVoxelDim, float fOutputScale)
+__global__ void dev_cone_BP_SS(void* D_volData, unsigned int volPitch, cudaTextureObject_t tex, int startAngle, int angleOffset, const SDimensions3D dims, int iRaysPerVoxelDim, float fOutputScale)
{
float* volData = (float*)D_volData;
@@ -220,7 +200,7 @@ __global__ void dev_cone_BP_SS(void* D_volData, unsigned int volPitch, int start
const float fU = fUNum * fr;
const float fV = fVNum * fr;
- fVal += tex3D(gT_coneProjTexture, fU, fAngle, fV) * fr * fr;
+ fVal += tex3D<float>(tex, fU, fAngle, fV) * fr * fr;
fZs += fSubStep;
}
@@ -313,7 +293,9 @@ bool ConeBP_Array(cudaPitchedPtr D_volumeData,
const SDimensions3D& dims, const SConeProjection* angles,
const SProjectorParams3D& params)
{
- bindProjDataTexture(D_projArray);
+ cudaTextureObject_t D_texObj;
+ if (!createTextureObject3D(D_projArray, D_texObj))
+ return false;
float fOutputScale;
if (params.bFDKWeighting) {
@@ -323,14 +305,16 @@ bool ConeBP_Array(cudaPitchedPtr D_volumeData,
fOutputScale = params.fOutputScale * (params.fVolScaleX * params.fVolScaleY * params.fVolScaleZ);
}
+ bool ok = true;
+
for (unsigned int th = 0; th < dims.iProjAngles; th += g_MaxAngles) {
unsigned int angleCount = g_MaxAngles;
if (th + angleCount > dims.iProjAngles)
angleCount = dims.iProjAngles - th;
- bool ok = transferConstants(angles, angleCount, params);
+ ok = transferConstants(angles, angleCount, params);
if (!ok)
- return false;
+ break;
dim3 dimBlock(g_volBlockX, g_volBlockY);
@@ -343,31 +327,33 @@ bool ConeBP_Array(cudaPitchedPtr D_volumeData,
// printf("Calling BP: %d, %dx%d, %dx%d to %p\n", i, dimBlock.x, dimBlock.y, dimGrid.x, dimGrid.y, (void*)D_volumeData.ptr);
if (params.bFDKWeighting) {
if (dims.iVolZ == 1) {
- dev_cone_BP<true, 1><<<dimGrid, dimBlock>>>(D_volumeData.ptr, D_volumeData.pitch/sizeof(float), i, th, dims, fOutputScale);
+ dev_cone_BP<true, 1><<<dimGrid, dimBlock>>>(D_volumeData.ptr, D_volumeData.pitch/sizeof(float), D_texObj, i, th, dims, fOutputScale);
} else {
- dev_cone_BP<true, g_volBlockZ><<<dimGrid, dimBlock>>>(D_volumeData.ptr, D_volumeData.pitch/sizeof(float), i, th, dims, fOutputScale);
+ dev_cone_BP<true, g_volBlockZ><<<dimGrid, dimBlock>>>(D_volumeData.ptr, D_volumeData.pitch/sizeof(float), D_texObj, i, th, dims, fOutputScale);
}
} else if (params.iRaysPerVoxelDim == 1) {
if (dims.iVolZ == 1) {
- dev_cone_BP<false, 1><<<dimGrid, dimBlock>>>(D_volumeData.ptr, D_volumeData.pitch/sizeof(float), i, th, dims, fOutputScale);
+ dev_cone_BP<false, 1><<<dimGrid, dimBlock>>>(D_volumeData.ptr, D_volumeData.pitch/sizeof(float), D_texObj, i, th, dims, fOutputScale);
} else {
- dev_cone_BP<false, g_volBlockZ><<<dimGrid, dimBlock>>>(D_volumeData.ptr, D_volumeData.pitch/sizeof(float), i, th, dims, fOutputScale);
+ dev_cone_BP<false, g_volBlockZ><<<dimGrid, dimBlock>>>(D_volumeData.ptr, D_volumeData.pitch/sizeof(float), D_texObj, i, th, dims, fOutputScale);
}
} else
- dev_cone_BP_SS<<<dimGrid, dimBlock>>>(D_volumeData.ptr, D_volumeData.pitch/sizeof(float), i, th, dims, params.iRaysPerVoxelDim, fOutputScale);
+ dev_cone_BP_SS<<<dimGrid, dimBlock>>>(D_volumeData.ptr, D_volumeData.pitch/sizeof(float), D_texObj, i, th, dims, params.iRaysPerVoxelDim, fOutputScale);
}
// TODO: Consider not synchronizing here, if possible.
- if (!checkCuda(cudaThreadSynchronize(), "cone_bp"))
- return false;
+ ok = checkCuda(cudaThreadSynchronize(), "cone_bp");
+ if (!ok)
+ break;
angles = angles + angleCount;
// printf("%f\n", toc(t));
}
+ cudaDestroyTextureObject(D_texObj);
- return true;
+ return ok;
}
bool ConeBP(cudaPitchedPtr D_volumeData,
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 04:00:45 +0000