/*
* Copyright (C) 2011-2013 Karlsruhe Institute of Technology
*
* This file is part of Ufo.
*
* This library is free software: you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either
* version 3 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see .
*/
#include "config.h"
#ifdef __APPLE__
#include
#else
#include
#endif
#include
#include "ufo-backproject-task.h"
typedef enum {
MODE_NEAREST,
MODE_TEXTURE
} Mode;
static GEnumValue mode_values[] = {
{ MODE_NEAREST, "MODE_NEAREST", "nearest" },
{ MODE_TEXTURE, "MODE_TEXTURE", "texture" },
{ 0, NULL, NULL}
};
struct _UfoBackprojectTaskPrivate {
cl_context context;
cl_kernel nearest_kernel;
cl_kernel texture_kernel;
cl_mem sin_lut;
cl_mem cos_lut;
gfloat *host_sin_lut;
gfloat *host_cos_lut;
gdouble axis_pos;
gdouble angle_step;
gdouble angle_offset;
gdouble real_angle_step;
gboolean luts_changed;
guint offset;
guint burst_projections;
guint n_projections;
guint roi_x;
guint roi_y;
gint roi_width;
gint roi_height;
Mode mode;
};
static void ufo_task_interface_init (UfoTaskIface *iface);
G_DEFINE_TYPE_WITH_CODE (UfoBackprojectTask, ufo_backproject_task, UFO_TYPE_TASK_NODE,
G_IMPLEMENT_INTERFACE (UFO_TYPE_TASK,
ufo_task_interface_init))
#define UFO_BACKPROJECT_TASK_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE((obj), UFO_TYPE_BACKPROJECT_TASK, UfoBackprojectTaskPrivate))
enum {
PROP_0,
PROP_NUM_PROJECTIONS,
PROP_OFFSET,
PROP_AXIS_POSITION,
PROP_ANGLE_STEP,
PROP_ANGLE_OFFSET,
PROP_ROI_X,
PROP_ROI_Y,
PROP_ROI_WIDTH,
PROP_ROI_HEIGHT,
PROP_MODE,
N_PROPERTIES
};
static GParamSpec *properties[N_PROPERTIES] = { NULL, };
UfoNode *
ufo_backproject_task_new (void)
{
return UFO_NODE (g_object_new (UFO_TYPE_BACKPROJECT_TASK, NULL));
}
static gboolean
ufo_backproject_task_process (UfoTask *task,
UfoBuffer **inputs,
UfoBuffer *output,
UfoRequisition *requisition)
{
UfoBackprojectTaskPrivate *priv;
UfoGpuNode *node;
UfoProfiler *profiler;
cl_command_queue cmd_queue;
cl_mem in_mem;
cl_mem out_mem;
cl_kernel kernel;
gfloat axis_pos;
priv = UFO_BACKPROJECT_TASK (task)->priv;
node = UFO_GPU_NODE (ufo_task_node_get_proc_node (UFO_TASK_NODE (task)));
cmd_queue = ufo_gpu_node_get_cmd_queue (node);
out_mem = ufo_buffer_get_device_array (output, cmd_queue);
if (priv->mode == MODE_TEXTURE) {
in_mem = ufo_buffer_get_device_image (inputs[0], cmd_queue);
kernel = priv->texture_kernel;
}
else {
in_mem = ufo_buffer_get_device_array (inputs[0], cmd_queue);
kernel = priv->nearest_kernel;
}
/* Guess axis position if they are not provided by the user. */
if (priv->axis_pos <= 0.0) {
UfoRequisition in_req;
ufo_buffer_get_requisition (inputs[0], &in_req);
axis_pos = (gfloat) ((gfloat) in_req.dims[0]) / 2.0f;
}
else {
axis_pos = priv->axis_pos;
}
UFO_RESOURCES_CHECK_CLERR (clSetKernelArg (kernel, 0, sizeof (cl_mem), &in_mem));
UFO_RESOURCES_CHECK_CLERR (clSetKernelArg (kernel, 1, sizeof (cl_mem), &out_mem));
UFO_RESOURCES_CHECK_CLERR (clSetKernelArg (kernel, 2, sizeof (cl_mem), &priv->sin_lut));
UFO_RESOURCES_CHECK_CLERR (clSetKernelArg (kernel, 3, sizeof (cl_mem), &priv->cos_lut));
UFO_RESOURCES_CHECK_CLERR (clSetKernelArg (kernel, 4, sizeof (guint), &priv->roi_x));
UFO_RESOURCES_CHECK_CLERR (clSetKernelArg (kernel, 5, sizeof (guint), &priv->roi_y));
UFO_RESOURCES_CHECK_CLERR (clSetKernelArg (kernel, 6, sizeof (guint), &priv->offset));
UFO_RESOURCES_CHECK_CLERR (clSetKernelArg (kernel, 7, sizeof (guint), &priv->burst_projections));
UFO_RESOURCES_CHECK_CLERR (clSetKernelArg (kernel, 8, sizeof (gfloat), &axis_pos));
profiler = ufo_task_node_get_profiler (UFO_TASK_NODE (task));
ufo_profiler_call (profiler, cmd_queue, kernel, 2, requisition->dims, NULL);
return TRUE;
}
static void
ufo_backproject_task_setup (UfoTask *task,
UfoResources *resources,
GError **error)
{
UfoBackprojectTaskPrivate *priv;
priv = UFO_BACKPROJECT_TASK_GET_PRIVATE (task);
priv->context = ufo_resources_get_context (resources);
priv->nearest_kernel = ufo_resources_get_kernel (resources, "backproject.cl", "backproject_nearest", NULL, error);
priv->texture_kernel = ufo_resources_get_kernel (resources, "backproject.cl", "backproject_tex", NULL, error);
UFO_RESOURCES_CHECK_SET_AND_RETURN (clRetainContext (priv->context), error);
if (priv->nearest_kernel != NULL)
UFO_RESOURCES_CHECK_SET_AND_RETURN (clRetainKernel (priv->nearest_kernel), error);
if (priv->texture_kernel != NULL)
UFO_RESOURCES_CHECK_SET_AND_RETURN (clRetainKernel (priv->texture_kernel), error);
}
static cl_mem
create_lut_buffer (UfoBackprojectTaskPrivate *priv,
gfloat **host_mem,
gsize n_entries,
double (*func)(double))
{
cl_int errcode;
gsize size = n_entries * sizeof (gfloat);
cl_mem mem = NULL;
*host_mem = g_realloc (*host_mem, size);
for (guint i = 0; i < n_entries; i++)
(*host_mem)[i] = (gfloat) func (priv->angle_offset + i * priv->real_angle_step);
mem = clCreateBuffer (priv->context,
CL_MEM_COPY_HOST_PTR | CL_MEM_READ_ONLY,
size, *host_mem,
&errcode);
UFO_RESOURCES_CHECK_CLERR (errcode);
return mem;
}
static void
release_lut_mems (UfoBackprojectTaskPrivate *priv)
{
if (priv->sin_lut) {
UFO_RESOURCES_CHECK_CLERR (clReleaseMemObject (priv->sin_lut));
priv->sin_lut = NULL;
}
if (priv->cos_lut) {
UFO_RESOURCES_CHECK_CLERR (clReleaseMemObject (priv->cos_lut));
priv->cos_lut = NULL;
}
}
static void
ufo_backproject_task_get_requisition (UfoTask *task,
UfoBuffer **inputs,
UfoRequisition *requisition,
GError **error)
{
UfoBackprojectTaskPrivate *priv;
UfoRequisition in_req;
priv = UFO_BACKPROJECT_TASK_GET_PRIVATE (task);
ufo_buffer_get_requisition (inputs[0], &in_req);
/* If the number of projections is not specified use the input size */
if (priv->n_projections == 0) {
priv->n_projections = (guint) in_req.dims[1];
}
priv->burst_projections = (guint) in_req.dims[1];
if (priv->burst_projections > priv->n_projections) {
g_set_error (error, UFO_TASK_ERROR, UFO_TASK_ERROR_GET_REQUISITION,
"Total number of projections (%u) must be greater than "
"or equal to sinogram height (%u)",
priv->n_projections, priv->burst_projections);
return;
}
requisition->n_dims = 2;
/* TODO: we should check here, that we might access data outside the
* projections */
requisition->dims[0] = priv->roi_width == 0 ? in_req.dims[0] : (gsize) priv->roi_width;
requisition->dims[1] = priv->roi_height == 0 ? in_req.dims[0] : (gsize) priv->roi_height;
if (priv->real_angle_step < 0.0) {
if (priv->angle_step <= 0.0)
priv->real_angle_step = G_PI / ((gdouble) priv->n_projections);
else
priv->real_angle_step = priv->angle_step;
}
if (priv->luts_changed) {
release_lut_mems (priv);
priv->luts_changed = FALSE;
}
if (priv->sin_lut == NULL) {
priv->sin_lut = create_lut_buffer (priv, &priv->host_sin_lut,
priv->n_projections, sin);
}
if (priv->cos_lut == NULL) {
priv->cos_lut = create_lut_buffer (priv, &priv->host_cos_lut,
priv->n_projections, cos);
}
}
static guint
ufo_filter_task_get_num_inputs (UfoTask *task)
{
return 1;
}
static guint
ufo_filter_task_get_num_dimensions (UfoTask *task,
guint input)
{
g_return_val_if_fail (input == 0, 0);
return 2;
}
static UfoTaskMode
ufo_filter_task_get_mode (UfoTask *task)
{
return UFO_TASK_MODE_PROCESSOR | UFO_TASK_MODE_GPU;
}
static gboolean
ufo_backproject_task_equal_real (UfoNode *n1,
UfoNode *n2)
{
g_return_val_if_fail (UFO_IS_BACKPROJECT_TASK (n1) && UFO_IS_BACKPROJECT_TASK (n2), FALSE);
return UFO_BACKPROJECT_TASK (n1)->priv->texture_kernel == UFO_BACKPROJECT_TASK (n2)->priv->texture_kernel;
}
static void
ufo_backproject_task_finalize (GObject *object)
{
UfoBackprojectTaskPrivate *priv;
priv = UFO_BACKPROJECT_TASK_GET_PRIVATE (object);
release_lut_mems (priv);
g_free (priv->host_sin_lut);
g_free (priv->host_cos_lut);
if (priv->nearest_kernel) {
UFO_RESOURCES_CHECK_CLERR (clReleaseKernel (priv->nearest_kernel));
priv->nearest_kernel = NULL;
}
if (priv->texture_kernel) {
UFO_RESOURCES_CHECK_CLERR (clReleaseKernel (priv->texture_kernel));
priv->texture_kernel = NULL;
}
if (priv->context) {
UFO_RESOURCES_CHECK_CLERR (clReleaseContext (priv->context));
priv->context = NULL;
}
G_OBJECT_CLASS (ufo_backproject_task_parent_class)->finalize (object);
}
static void
ufo_task_interface_init (UfoTaskIface *iface)
{
iface->setup = ufo_backproject_task_setup;
iface->get_requisition = ufo_backproject_task_get_requisition;
iface->get_num_inputs = ufo_filter_task_get_num_inputs;
iface->get_num_dimensions = ufo_filter_task_get_num_dimensions;
iface->get_mode = ufo_filter_task_get_mode;
iface->process = ufo_backproject_task_process;
}
static void
ufo_backproject_task_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
UfoBackprojectTaskPrivate *priv = UFO_BACKPROJECT_TASK_GET_PRIVATE (object);
switch (property_id) {
case PROP_NUM_PROJECTIONS:
priv->n_projections = g_value_get_uint (value);
break;
case PROP_OFFSET:
priv->offset = g_value_get_uint (value);
break;
case PROP_AXIS_POSITION:
priv->axis_pos = g_value_get_double (value);
break;
case PROP_ANGLE_STEP:
priv->angle_step = g_value_get_double (value);
break;
case PROP_ANGLE_OFFSET:
priv->angle_offset = g_value_get_double (value);
priv->luts_changed = TRUE;
break;
case PROP_MODE:
priv->mode = g_value_get_enum (value);
break;
case PROP_ROI_X:
priv->roi_x = g_value_get_uint (value);
break;
case PROP_ROI_Y:
priv->roi_y = g_value_get_uint (value);
break;
case PROP_ROI_WIDTH:
priv->roi_width = g_value_get_uint (value);
break;
case PROP_ROI_HEIGHT:
priv->roi_height = g_value_get_uint (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
ufo_backproject_task_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
UfoBackprojectTaskPrivate *priv = UFO_BACKPROJECT_TASK_GET_PRIVATE (object);
switch (property_id) {
case PROP_NUM_PROJECTIONS:
g_value_set_uint (value, priv->n_projections);
break;
case PROP_OFFSET:
g_value_set_uint (value, priv->offset);
break;
case PROP_AXIS_POSITION:
g_value_set_double (value, priv->axis_pos);
break;
case PROP_ANGLE_STEP:
g_value_set_double (value, priv->angle_step);
break;
case PROP_ANGLE_OFFSET:
g_value_set_double (value, priv->angle_offset);
break;
case PROP_MODE:
g_value_set_enum (value, priv->mode);
break;
case PROP_ROI_X:
g_value_set_uint (value, priv->roi_x);
break;
case PROP_ROI_Y:
g_value_set_uint (value, priv->roi_y);
break;
case PROP_ROI_WIDTH:
g_value_set_uint (value, priv->roi_width);
break;
case PROP_ROI_HEIGHT:
g_value_set_uint (value, priv->roi_height);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID(object, property_id, pspec);
break;
}
}
static void
ufo_backproject_task_class_init (UfoBackprojectTaskClass *klass)
{
GObjectClass *oclass;
UfoNodeClass *node_class;
oclass = G_OBJECT_CLASS (klass);
node_class = UFO_NODE_CLASS (klass);
oclass->finalize = ufo_backproject_task_finalize;
oclass->set_property = ufo_backproject_task_set_property;
oclass->get_property = ufo_backproject_task_get_property;
properties[PROP_NUM_PROJECTIONS] =
g_param_spec_uint ("num-projections",
"Number of projections between 0 and 180 degrees",
"Number of projections between 0 and 180 degrees",
0, +32768, 0,
G_PARAM_READWRITE);
properties[PROP_OFFSET] =
g_param_spec_uint ("offset",
"Offset to the first projection",
"Offset to the first projection",
0, +32768, 0,
G_PARAM_READWRITE);
properties[PROP_AXIS_POSITION] =
g_param_spec_double ("axis-pos",
"Position of rotation axis",
"Position of rotation axis",
-1.0, +32768.0, 0.0,
G_PARAM_READWRITE);
properties[PROP_ANGLE_STEP] =
g_param_spec_double ("angle-step",
"Increment of angle in radians",
"Increment of angle in radians",
-G_MAXDOUBLE, G_MAXDOUBLE, 0.0,
G_PARAM_READWRITE);
properties[PROP_ANGLE_OFFSET] =
g_param_spec_double ("angle-offset",
"Angle offset in radians",
"Angle offset in radians determining the first angle position",
0.0, G_MAXDOUBLE, 0.0,
G_PARAM_READWRITE);
properties[PROP_MODE] =
g_param_spec_enum ("mode",
"Backprojection mode (\"nearest\", \"texture\")",
"Backprojection mode (\"nearest\", \"texture\")",
g_enum_register_static ("ufo_backproject_mode", mode_values),
MODE_TEXTURE, G_PARAM_READWRITE);
properties[PROP_ROI_X] =
g_param_spec_uint ("roi-x",
"X coordinate of region of interest",
"X coordinate of region of interest",
0, G_MAXUINT, 0,
G_PARAM_READWRITE);
properties[PROP_ROI_Y] =
g_param_spec_uint ("roi-y",
"Y coordinate of region of interest",
"Y coordinate of region of interest",
0, G_MAXUINT, 0,
G_PARAM_READWRITE);
properties[PROP_ROI_WIDTH] =
g_param_spec_uint ("roi-width",
"Width of region of interest",
"Width of region of interest",
0, G_MAXUINT, 0,
G_PARAM_READWRITE);
properties[PROP_ROI_HEIGHT] =
g_param_spec_uint ("roi-height",
"Height of region of interest",
"Height of region of interest",
0, G_MAXUINT, 0,
G_PARAM_READWRITE);
for (guint i = PROP_0 + 1; i < N_PROPERTIES; i++)
g_object_class_install_property (oclass, i, properties[i]);
node_class->equal = ufo_backproject_task_equal_real;
g_type_class_add_private(klass, sizeof(UfoBackprojectTaskPrivate));
}
static void
ufo_backproject_task_init (UfoBackprojectTask *self)
{
UfoBackprojectTaskPrivate *priv;
self->priv = priv = UFO_BACKPROJECT_TASK_GET_PRIVATE (self);
priv->nearest_kernel = NULL;
priv->texture_kernel = NULL;
priv->n_projections = 0;
priv->offset = 0;
priv->axis_pos = -1.0;
priv->angle_step = -1.0;
priv->angle_offset = 0.0;
priv->real_angle_step = -1.0;
priv->sin_lut = NULL;
priv->cos_lut = NULL;
priv->host_sin_lut = NULL;
priv->host_cos_lut = NULL;
priv->mode = MODE_TEXTURE;
priv->luts_changed = TRUE;
priv->roi_x = priv->roi_y = 0;
priv->roi_width = priv->roi_height = 0;
}