debugging geometry_correction - was corrupting last tiles

src/geometry_correction.cu

@@ -281,6 +281,32 @@ extern "C" __global__ void calc_rot_deriv(
 }
 
 
+extern "C" __global__ void calculate_tiles_offsets(
+		struct tp_task     * gpu_tasks,
+		int                  num_tiles,          // number of tiles in task
+		struct gc          * gpu_geometry_correction,
+		struct corr_vector * gpu_correction_vector,
+		float *              gpu_rByRDist, // length should match RBYRDIST_LEN
+		trot_deriv   * gpu_rot_deriv)
+{
+	dim3 threads_geom(NUM_CAMS,TILES_PER_BLOCK_GEOM, 1);
+	dim3 grid_geom   ((num_tiles+TILES_PER_BLOCK_GEOM-1)/TILES_PER_BLOCK_GEOM, 1, 1);
+	if (threadIdx.x == 0) { // always 1
+    	get_tiles_offsets<<<grid_geom,threads_geom>>> (
+    			gpu_tasks,               // struct tp_task     * gpu_tasks,
+				num_tiles,               // int                  num_tiles,          // number of tiles in task list
+				gpu_geometry_correction, //	struct gc          * gpu_geometry_correction,
+				gpu_correction_vector,   //	struct corr_vector * gpu_correction_vector,
+				gpu_rByRDist,            //	float *              gpu_rByRDist)      // length should match RBYRDIST_LEN
+				gpu_rot_deriv);          // union trot_deriv   * gpu_rot_deriv);
+
+	}
+//	__syncthreads();// __syncwarp();
+//	cudaDeviceSynchronize();
+//	cudaDeviceSynchronize();
+}
+
+
 /*
  * blockDim.x = NUM_CAMS
  * blockDim.y = TILES_PER_BLOCK_GEOM
@@ -295,12 +321,7 @@ extern "C" __global__ void get_tiles_offsets(
 		trot_deriv   * gpu_rot_deriv)
 {
 	int task_num = blockIdx.x * blockDim.y + threadIdx.y; //  blockIdx.x * TILES_PER_BLOCK_GEOM + threadIdx.y
-	if (task_num >= num_tiles){
-		return;
-	}
 	int thread_xy = blockDim.x * threadIdx.y + threadIdx.x;
-	int ncam = threadIdx.x;
-	// threadIdx.x - numcam, used for per-camera
 	__shared__ struct gc geometry_correction;
 	__shared__ float rByRDist [RBYRDIST_LEN];
 	__shared__ struct corr_vector extrinsic_corr;
@@ -355,6 +376,10 @@ extern "C" __global__ void get_tiles_offsets(
 		}
 	}
 	__syncthreads();
+	int ncam = threadIdx.x;
+	if (task_num >= num_tiles){
+		return;
+	}
 	int imu_exists = // todo - calculate once with rot_deriv?
 			(extrinsic_corr.imu_rot[0] != 0.0) ||
 			(extrinsic_corr.imu_rot[1] != 0.0) ||
@@ -418,7 +443,7 @@ extern "C" __global__ void get_tiles_offsets(
 	xyz[0] =  SCENE_UNITS_SCALE * pXc * geometry_correction.disparityRadius / disparity;
 	xyz[1] = -SCENE_UNITS_SCALE * pYc * geometry_correction.disparityRadius / disparity;
 	// next radial distortion coefficients are for this, not master camera (may be the same)
-//	geometry_correction.rad_coeff[i];
+	//	geometry_correction.rad_coeff[i];
 	float fl_pix = geometry_correction.focalLength/(0.001 * geometry_correction.pixelSize); // focal length in pixels - this camera
 	float ri_scale = 0.001 * geometry_correction.pixelSize / geometry_correction.distortionRadius;
 
@@ -486,7 +511,7 @@ extern "C" __global__ void get_tiles_offsets(
 	float pYid = pYci * rD2rND;
 	pXY[0] =  pXid + geometry_correction.pXY0[ncam][0];
 	pXY[1] =  pYid + geometry_correction.pXY0[ncam][1];
-// new for ERS
+	// new for ERS
 	pY_offsets[threadIdx.y][ncam] = pXY[1] - geometry_correction.woi_tops[ncam];
 	__syncthreads();
 	// Each thread re-calculate same sum
@@ -511,9 +536,6 @@ extern "C" __global__ void get_tiles_offsets(
 	__syncthreads();// __syncwarp();
 #endif // DEBUG21
 
-
-
-	//	float rvi[3];
 	float drvi_daz [3]; // drvi_daz = deriv_rots[i][0].times(vi);
 	float drvi_dtl [3]; // drvi_dtl = deriv_rots[i][1].times(vi);
 	float drvi_drl [3]; // drvi_drl = deriv_rots[i][2].times(vi);
@@ -547,7 +569,7 @@ extern "C" __global__ void get_tiles_offsets(
 
 	float disp_dist[4]; // only for this channel, to be copied to global gpu_tasks in the end
 	float dpXci_pYci_imu_lin[2][3];
-/*
+	/*
  				double [][] add0 = {
 						{-rXY[i][0],  rXY[i][1], 0.0},
 						{-rXY[i][1], -rXY[i][0], 0.0},
@@ -570,12 +592,11 @@ extern "C" __global__ void get_tiles_offsets(
 	__syncthreads();// __syncwarp();
 #endif // DEBUG21
 
-
 	// now first column of 2x2 dd1 - x, y components of derivatives by disparity, second column - derivatives by ortho to disparity (~Y in 2d correlation)
 	// unity vector in the direction of radius
 	float c_dist = pXci/rNDi;
 	float s_dist = pYci/rNDi;
-//#undef NVRTC_BUG
+	//#undef NVRTC_BUG
 	float drD2rND_dri = 0.0;
 	{
 		float rri = 1.0;
@@ -618,28 +639,16 @@ extern "C" __global__ void get_tiles_offsets(
 	__syncthreads();// __syncwarp();
 #endif // DEBUG21
 
-
 	gpu_tasks[task_num].disp_dist[ncam][0] = disp_dist[0];
 	gpu_tasks[task_num].disp_dist[ncam][1] = disp_dist[1];
 	gpu_tasks[task_num].disp_dist[ncam][2] = disp_dist[2];
 	gpu_tasks[task_num].disp_dist[ncam][3] = disp_dist[3];
 
-//	imu =  extrinsic_corr.getIMU(i); // currently it is common for all channels
-//	float imu_rot [3]; // d_tilt/dt (rad/s), d_az/dt, d_roll/dt 13..15
-//	float imu_move[3]; // dx/dt, dy/dt, dz/dt 16..19 geometry_correction.imu_move
-// ERS linear does not yet use per-port rotations, probably not needed
+	//	imu =  extrinsic_corr.getIMU(i); // currently it is common for all channels
+	//	float imu_rot [3]; // d_tilt/dt (rad/s), d_az/dt, d_roll/dt 13..15
+	//	float imu_move[3]; // dx/dt, dy/dt, dz/dt 16..19 geometry_correction.imu_move
+	// ERS linear does not yet use per-port rotations, probably not needed
 	if (imu_exists){
-		/*
-		float delta_t = disp_dist[2] * disparity * geometry_correction.line_time; // positive for top cameras, negative - for bottom //disp_dist[2]=dd2.get(1, 0)
-		float ers_Xci =	delta_t * (
-				dpXci_dtilt * extrinsic_corr.imu_rot[0] +
-				dpXci_dazimuth * extrinsic_corr.imu_rot[1]  +
-				dpXci_droll * extrinsic_corr.imu_rot[2]);
-		float ers_Yci =	delta_t* (
-				dpYci_dtilt * extrinsic_corr.imu_rot[0] +
-				dpYci_dazimuth * extrinsic_corr.imu_rot[1] +
-				dpYci_droll * extrinsic_corr.imu_rot[2]);
-		 */
 		float ers_x =
 				dpXci_dtilt * extrinsic_corr.imu_rot[0] +
 				dpXci_dazimuth * extrinsic_corr.imu_rot[1]  +
@@ -649,11 +658,8 @@ extern "C" __global__ void get_tiles_offsets(
 				dpYci_dazimuth * extrinsic_corr.imu_rot[1] +
 				dpYci_droll * extrinsic_corr.imu_rot[2];
 
-
-
 #ifdef DEBUG21
 		if ((ncam == DBG_CAM)  && (task_num == DBG_TILE)){
-//			printf("delta_t = %f,  ers_Xci = %f,  ers_Yci = %f\n", delta_t, ers_Xci, ers_Yci);
 			printf("ers_x = %f,  ers_y = %f\n", ers_x, ers_y);
 		}
 		__syncthreads();// __syncwarp();
@@ -666,14 +672,6 @@ extern "C" __global__ void get_tiles_offsets(
 			dpXci_pYci_imu_lin[1][1] =  wdisparity / k; // dpy/ dworld_Y
 			dpXci_pYci_imu_lin[0][2] =  (xyz[0] / k) * dwdisp_dz; // dpx/ dworld_Z
 			dpXci_pYci_imu_lin[1][2] =  (xyz[1] / k) * dwdisp_dz; // dpy/ dworld_Z
-			/*
-			ers_Xci += delta_t* (
-					dpXci_pYci_imu_lin[0][0] * extrinsic_corr.imu_move[0] +
-					dpXci_pYci_imu_lin[0][2] * extrinsic_corr.imu_move[2]);
-			ers_Yci += delta_t* (
-					dpXci_pYci_imu_lin[1][1] * extrinsic_corr.imu_move[1] +
-					dpXci_pYci_imu_lin[1][2] * extrinsic_corr.imu_move[2]);
-			*/
 			ers_x += dpXci_pYci_imu_lin[0][0] * extrinsic_corr.imu_move[0] +
 					dpXci_pYci_imu_lin[0][2] * extrinsic_corr.imu_move[2];
 			ers_y += dpXci_pYci_imu_lin[1][1] * extrinsic_corr.imu_move[1] +
@@ -700,8 +698,6 @@ extern "C" __global__ void get_tiles_offsets(
 	// copy results to global memory pXY,  disp_dist
 	gpu_tasks[task_num].xy[ncam][0] = pXY[0];
 	gpu_tasks[task_num].xy[ncam][1] = pXY[1];
-
-
 }
 
 extern "C" __global__ void calcReverseDistortionTable(

src/geometry_correction.h

@@ -149,6 +149,15 @@ extern "C" __global__ void get_tiles_offsets(
 		float *              gpu_rByRDist, // length should match RBYRDIST_LEN
 		trot_deriv   * gpu_rot_deriv);
 
+extern "C" __global__ void calculate_tiles_offsets(
+		struct tp_task     * gpu_tasks,
+		int                  num_tiles,          // number of tiles in task
+		struct gc          * gpu_geometry_correction,
+		struct corr_vector * gpu_correction_vector,
+		float *              gpu_rByRDist, // length should match RBYRDIST_LEN
+		trot_deriv   * gpu_rot_deriv);
+
+
 // uses NUM_CAMS blocks, (3,3,3) threads
 extern "C" __global__ void calc_rot_deriv(
 		struct corr_vector * gpu_correction_vector,

src/test_tp.cu

@@ -739,6 +739,7 @@ int main(int argc, char **argv)
     		sdkResetTimer(&timerGEOM);
     		sdkStartTimer(&timerGEOM);
     	}
+/*
     	get_tiles_offsets<<<grid_geom,threads_geom>>> (
     			gpu_tasks,               // struct tp_task     * gpu_tasks,
 				tp_task_size,            // int                  num_tiles,          // number of tiles in task list
@@ -746,6 +747,14 @@ int main(int argc, char **argv)
 				gpu_correction_vector,   //	struct corr_vector * gpu_correction_vector,
 				gpu_rByRDist,            //	float *              gpu_rByRDist)      // length should match RBYRDIST_LEN
 				gpu_rot_deriv);          // union trot_deriv   * gpu_rot_deriv);
+				*/
+    	calculate_tiles_offsets<<<1,1>>> (
+    			gpu_tasks,               // struct tp_task     * gpu_tasks,
+				tp_task_size,            // int                  num_tiles,          // number of tiles in task list
+				gpu_geometry_correction, //	struct gc          * gpu_geometry_correction,
+				gpu_correction_vector,   //	struct corr_vector * gpu_correction_vector,
+				gpu_rByRDist,            //	float *              gpu_rByRDist)      // length should match RBYRDIST_LEN
+				gpu_rot_deriv);          // union trot_deriv   * gpu_rot_deriv);
 
     	getLastCudaError("Kernel failure");
     	checkCudaErrors(cudaDeviceSynchronize());

src/tp_defines.h

@@ -93,8 +93,8 @@
 
 //#define DBG_TILE_X     40
 //#define DBG_TILE_Y     80
-#define DBG_TILE_X     162 // 151 // 161 // 49
-#define DBG_TILE_Y     121 // 69  // 111 // 66
+#define DBG_TILE_X     32 // 162 // 151 // 161 // 49
+#define DBG_TILE_Y     88 // 121 // 69  // 111 // 66
 
 #define DBG_TILE    (DBG_TILE_Y * 324 + DBG_TILE_X)
 #undef DBG_MARK_DBG_TILE