Smoke/streamlines.c


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#ifdef G_OS_WIN32
#define WIN32_LEAN_AND_MEAN 1
#include <windows.h>
#endif


#include <rfftw.h>

#include "fluids.h"
#include "funcs.h"
#include "palette.h"

#include "streamlines.h"
#include "seedpoint.h"

static int streamlines_render     = FALSE;
static int streamlines_num_colors = PALETTE_MAXCOLORS;
static int streamlines_colormap   = PALETTE_BLACKWHITE;
static int streamlines_dataset    = DATASET_RHO;
static float streamlines_alpha    = 1.0f;

static fftw_real *streamlines_frame;
struct fftw_real_xy **streamlines_history_scalars;

void streamlines_set_render(int render_streamlines)
{
  streamlines_render = render_streamlines;
}

int streamlines_get_render(void)
{
  return streamlines_render;
}

void streamlines_set_num_colors(int num_colors)
{
  streamlines_num_colors = num_colors;
}

int streamlines_get_num_colors(void)
{
  return streamlines_num_colors;
}

void streamlines_set_colormap(int colormap)
{
  streamlines_colormap = colormap;
}

int streamlines_get_colormap(void)
{
  return streamlines_colormap;
}

void streamlines_set_alpha(float alpha)
{
  streamlines_alpha = alpha;
}

float streamlines_get_alpha(void)
{
  return streamlines_alpha;
}

void streamlines_set_dataset(int dataset)
{
  streamlines_dataset = dataset;
}

int streamlines_get_dataset(void)
{
  return streamlines_dataset;
}

void streamlines_set_frame(fftw_real *frame)
{
  streamlines_frame = frame;
}

fftw_real *streamlines_get_frame(void)
{
  return streamlines_frame;
}

void streamlines_set_history_scalars(struct fftw_real_xy **history)
{
  streamlines_history_scalars = history;
}

struct fftw_real_xy *streamlines_get_history_scalars(int hisdex)
{
  return streamlines_history_scalars[hisdex];
}


struct color4f streamlines_get_color(float value)
{
  struct color4f return_value;

  return_value = set_palette(streamlines_colormap, value, streamlines_num_colors);
  return_value.a = streamlines_alpha;

  return return_value;
}

void streamlines_reset_seedpoints(void)
{
  int i, nr;

  i = 0;
  nr = get_cur_seedpoint();

  while (i < nr)
  {
    delete_seedpoint(0);
    i++;
  }
}