lamino-filters/src/ufo-lamino-ramp-task.c

/**
 * SECTION:ufo-reader-task
 * @Short_description: Read TIFF and EDF files
 * @Title: reader
 *
 * The reader node loads single files from disk and provides them as a stream
 * The nominal resolution can be decreased by specifying the #UfoLaminoRampTask:x
 * and #UfoLaminoRampTask:y coordinates, and the #UfoLaminoRampTask:width and
 * #UfoLaminoRampTask:height of a region of interest.
 */

#include <gmodule.h>
#include <stdlib.h>
#include <string.h>
#include <glob.h>
#ifdef __APPLE__
#include <OpenCL/cl.h>
#else
#include <CL/cl.h>
#endif

#include "ufo-lamino-ramp-task.h"

struct _UfoLaminoRampTaskPrivate {
    guint width;
    guint height;
    guint fill_width;
    gfloat theta;
    gfloat tau;
    cl_kernel kernel;
    gboolean done;
};

static void ufo_task_interface_init (UfoTaskIface *iface);
static void ufo_gpu_task_interface_init (UfoGpuTaskIface *iface);

G_DEFINE_TYPE_WITH_CODE (UfoLaminoRampTask, ufo_lamino_ramp_task, UFO_TYPE_TASK_NODE,
                         G_IMPLEMENT_INTERFACE (UFO_TYPE_TASK,
                                                ufo_task_interface_init)
                         G_IMPLEMENT_INTERFACE (UFO_TYPE_GPU_TASK,
                                                ufo_gpu_task_interface_init))

#define UFO_LAMINO_RAMP_TASK_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE((obj), UFO_TYPE_LAMINO_RAMP_TASK, UfoLaminoRampTaskPrivate))

enum {
    PROP_0,
    PROP_WIDTH,
    PROP_FILL_WIDTH,
    PROP_HEIGHT,
    PROP_THETA,
    PROP_TAU,
    N_PROPERTIES
};

static GParamSpec *properties[N_PROPERTIES] = { NULL, };

UfoNode *
ufo_lamino_ramp_task_new (void)
{
    return UFO_NODE (g_object_new (UFO_TYPE_LAMINO_RAMP_TASK, NULL));
}

static int
is_power_of_two (guint x)
{
    return ((x != 0) && !(x & (x - 1)));
}

static void
ufo_lamino_ramp_task_setup (UfoTask *task,
                            UfoResources *resources,
                            GError **error)
{
    UfoLaminoRampTask *node;
    UfoLaminoRampTaskPrivate *priv;

    node = UFO_LAMINO_RAMP_TASK (task);
    priv = node->priv;

    if (!is_power_of_two (priv->width)) {
        g_set_error (error, UFO_TASK_ERROR, UFO_TASK_ERROR_SETUP,
                     "Filter width `%i' is not a power of two", priv->width);
        return;
    }

    if (!is_power_of_two (priv->height)) {
        g_set_error (error, UFO_TASK_ERROR, UFO_TASK_ERROR_SETUP,
                     "Filter height `%i' is not a power of two", priv->height);
        return;
    }

    priv->kernel = ufo_resources_get_kernel (resources,
                                             "lamino_ramp.cl",
                                             "lamino_ramp_create_filter",
                                             error);

    if (priv->kernel != NULL)
        clRetainKernel (priv->kernel);
}

static void
ufo_lamino_ramp_task_get_requisition (UfoTask *task,
                                      UfoBuffer **inputs,
                                      UfoRequisition *requisition)
{
    UfoLaminoRampTaskPrivate *priv;

    priv = UFO_LAMINO_RAMP_TASK_GET_PRIVATE (UFO_LAMINO_RAMP_TASK (task));

    requisition->n_dims = 2;
    requisition->dims[0] = priv->width;
    requisition->dims[1] = priv->height;
}

static void
ufo_lamino_ramp_task_get_structure (UfoTask *task,
                                    guint *n_inputs,
                                    UfoInputParam **in_params,
                                    UfoTaskMode *mode)
{
    *n_inputs = 0;
    *mode = UFO_TASK_MODE_GENERATOR;
}

static gboolean
ufo_lamino_ramp_task_generate (UfoGpuTask *task,
                               UfoBuffer *output,
                               UfoRequisition *requisition)
{
    UfoLaminoRampTaskPrivate *priv;
    UfoGpuNode *node;
    cl_command_queue cmd_queue;
    cl_mem out_mem;

    priv = UFO_LAMINO_RAMP_TASK_GET_PRIVATE (UFO_LAMINO_RAMP_TASK (task));

    if (priv->done)
        return FALSE;

    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);

    UFO_RESOURCES_CHECK_CLERR (clSetKernelArg (priv->kernel, 0, sizeof(cl_mem), (void *) &out_mem));
    UFO_RESOURCES_CHECK_CLERR (clSetKernelArg (priv->kernel, 1, sizeof(int), &priv->width));
    UFO_RESOURCES_CHECK_CLERR (clSetKernelArg (priv->kernel, 2, sizeof(int), &priv->fill_width));
    UFO_RESOURCES_CHECK_CLERR (clSetKernelArg (priv->kernel, 3, sizeof(int), &priv->height));
    UFO_RESOURCES_CHECK_CLERR (clSetKernelArg (priv->kernel, 4, sizeof(float), &priv->theta));
    UFO_RESOURCES_CHECK_CLERR (clSetKernelArg (priv->kernel, 5, sizeof(float), &priv->tau));

    UFO_RESOURCES_CHECK_CLERR (clEnqueueNDRangeKernel (cmd_queue, priv->kernel,
                                                       2, NULL, requisition->dims, NULL,
                                                       0, NULL, NULL));

    priv->done = TRUE;
    return TRUE;
}

static void
ufo_lamino_ramp_task_set_property (GObject *object,
                                   guint property_id,
                                   const GValue *value,
                                   GParamSpec *pspec)
{
    UfoLaminoRampTaskPrivate *priv = UFO_LAMINO_RAMP_TASK_GET_PRIVATE (object);

    switch (property_id) {
        case PROP_WIDTH:
            priv->width = g_value_get_uint (value);
            break;
        case PROP_FILL_WIDTH:
            priv->fill_width = g_value_get_uint (value);
            break;
        case PROP_HEIGHT:
            priv->height = g_value_get_uint (value);
            break;
        case PROP_THETA:
            priv->theta = (gfloat) g_value_get_double (value);
            break;
        case PROP_TAU:
            priv->tau = (gfloat) g_value_get_double (value);
            break;
        default:
            G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
            break;
    }
}

static void
ufo_lamino_ramp_task_get_property (GObject *object,
                                   guint property_id,
                                   GValue *value,
                                   GParamSpec *pspec)
{
    UfoLaminoRampTaskPrivate *priv = UFO_LAMINO_RAMP_TASK_GET_PRIVATE (object);

    switch (property_id) {
        case PROP_WIDTH:
            g_value_set_uint (value, priv->width);
            break;
        case PROP_FILL_WIDTH:
            g_value_set_uint (value, priv->fill_width);
            break;
        case PROP_HEIGHT:
            g_value_set_uint (value, priv->height);
            break;
        case PROP_THETA:
            g_value_set_double (value, priv->theta);
            break;
        case PROP_TAU:
            g_value_set_double (value, priv->tau);
            break;
        default:
            G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
            break;
    }
}

static void
ufo_lamino_ramp_task_finalize (GObject *object)
{
    UfoLaminoRampTaskPrivate *priv = UFO_LAMINO_RAMP_TASK_GET_PRIVATE (object);

    if (priv->kernel != NULL) {
        clReleaseKernel (priv->kernel);
        priv->kernel = NULL;
    }

    G_OBJECT_CLASS (ufo_lamino_ramp_task_parent_class)->finalize (object);
}

static void
ufo_task_interface_init (UfoTaskIface *iface)
{
    iface->setup = ufo_lamino_ramp_task_setup;
    iface->get_structure = ufo_lamino_ramp_task_get_structure;
    iface->get_requisition = ufo_lamino_ramp_task_get_requisition;
}

static void
ufo_gpu_task_interface_init (UfoGpuTaskIface *iface)
{
    iface->generate = ufo_lamino_ramp_task_generate;
}

static void
ufo_lamino_ramp_task_class_init (UfoLaminoRampTaskClass *klass)
{
    GObjectClass *gobject_class = G_OBJECT_CLASS (klass);

    gobject_class->set_property = ufo_lamino_ramp_task_set_property;
    gobject_class->get_property = ufo_lamino_ramp_task_get_property;
    gobject_class->finalize = ufo_lamino_ramp_task_finalize;

    properties[PROP_WIDTH] =
        g_param_spec_uint("width",
                "Width of the 2D image filter (power of 2)",
                "Width of the 2D image filter (power of 2)",
                1, 32768, 1.0,
                G_PARAM_READWRITE);

    properties[PROP_FILL_WIDTH] =
        g_param_spec_uint("fwidth",
                "Filling width of the 2D image filter",
                "Filling width of the 2D image filter",
                1, 32768, 1.0,
                G_PARAM_READWRITE);

    properties[PROP_HEIGHT] =
        g_param_spec_uint("height",
                "Height of the 2D image filter",
                "Height of the 2D image filter",
                1, 16384, 1.0,
                G_PARAM_READWRITE);

    properties[PROP_THETA] =
        g_param_spec_double("theta",
                "Laminographic angle in radians",
                "Resolution (pixel size) in microns",
                -4.0 * G_PI, +4.0 * G_PI, 0.0,
                G_PARAM_READWRITE);

    properties[PROP_TAU] =
        g_param_spec_double("tau",
                "Resolution (pixel size) in microns",
                "Resolution (pixel size) in microns",
                0.0,        /* minimum */
                100000.0,   /* maximum */
                10.0,       /* default */
                G_PARAM_READWRITE);

    for (guint i = PROP_0 + 1; i < N_PROPERTIES; i++)
        g_object_class_install_property (gobject_class, i, properties[i]);

    g_type_class_add_private (gobject_class, sizeof(UfoLaminoRampTaskPrivate));
}

static void
ufo_lamino_ramp_task_init(UfoLaminoRampTask *self)
{
    UfoLaminoRampTaskPrivate *priv = NULL;

    self->priv = priv = UFO_LAMINO_RAMP_TASK_GET_PRIVATE (self);
    priv->width = 4;
    priv->fill_width=2;
    priv->height = 1;
    priv->theta = 0.0;
    priv->tau = 10.0;
    priv->kernel = NULL;
    priv->done = FALSE;
}