static void
chroma_pre_process (const Babl   *format,
                    const gfloat *in,
                    const gfloat *layer,
                    gfloat       *out,
                    glong         samples)
{
  gfloat tmp[4 * samples], *layer_lab = tmp;
  gint   i;

  babl_process (babl_fish (format, "CIE Lab alpha float"), in, out, samples);
  babl_process (babl_fish (format, "CIE Lab alpha float"), layer, layer_lab, samples);

  for (i = 0; i < samples; ++i)
    {
      gfloat A1 = out[4 * i + 1];
      gfloat B1 = out[4 * i + 2];
      gfloat c1 = hypot (A1, B1);

      if (c1 != 0)
        {
          gfloat A2 = layer_lab[4 * i + 1];
          gfloat B2 = layer_lab[4 * i + 2];
          gfloat c2 = hypot (A2, B2);
          gfloat A  = c2 * A1 / c1;
          gfloat B  = c2 * B1 / c1;

          out[4 * i + 1] = A;
          out[4 * i + 2] = B;
        }
    }

  babl_process (babl_fish ("CIE Lab alpha float", format), out, out, samples);
}
Ejemplo n.º 2
0
static BablPalette *
make_pal (const Babl *pal_space, 
          const Babl *format, 
          const void *data, 
          int         count)
{
  BablPalette *pal = NULL;
  int bpp = babl_format_get_bytes_per_pixel (format);

  babl_assert (count > 0);

  pal = babl_malloc (sizeof (BablPalette));
  pal->count = count;
  pal->format = format;
  pal->data = babl_malloc (bpp * count);
  pal->data_double = babl_malloc (4 * sizeof(double) * count);
  pal->data_u8 = babl_malloc (4 * sizeof(char) * count);
  pal->radii = babl_malloc (sizeof (BablPaletteRadius) *
                            (pal->count - 1)           *
                            pal->count);

  memcpy (pal->data, data, bpp * count);

  babl_process (babl_fish (format, babl_format_with_space ("RGBA double", pal_space)),
                data, pal->data_double, count);
  babl_process (babl_fish (format, babl_format_with_space ("R'G'B'A u8", pal_space)),
                data, pal->data_u8, count);

  babl_palette_init_radii (pal);

  babl_palette_reset_hash (pal);

  return pal;
}
Ejemplo n.º 3
0
void
gegl_sampler_prepare (GeglSampler *self)
{
  GeglSamplerClass *klass;

  g_return_if_fail (GEGL_IS_SAMPLER (self));

  klass = GEGL_SAMPLER_GET_CLASS (self);

  if (!self->buffer) /* happens when extent of sampler is queried */
    return;
  if (!self->format)
    self->format = self->buffer->soft_format;

  if (klass->prepare)
    klass->prepare (self);
  
  if (!self->fish)
    self->fish = babl_fish (self->interpolate_format, self->format);

  /*
   * This makes the cache rect invalid, in case the data in the buffer
   * has changed:
   */
  self->level[0].sampler_rectangle.width = 0;
  self->level[0].sampler_rectangle.height = 0;

}
Ejemplo n.º 4
0
void
gegl_sampler_prepare (GeglSampler *self)
{
  GeglSamplerClass *klass;

  g_return_if_fail (GEGL_IS_SAMPLER (self));

  klass = GEGL_SAMPLER_GET_CLASS (self);

  if (klass->prepare)
    klass->prepare (self);

  self->fish = babl_fish (self->interpolate_format, self->format);

  /*
   * This makes the cache rect invalid, in case the data in the buffer
   * has changed:
   */
  self->sampler_rectangle[0].width = 0;
  self->sampler_rectangle[0].height = 0;

#if 0
  if (self->cache_buffer) /* Force a regetting of the region, even
                             though the cached getter may be valid. */
    {
      g_free (self->cache_buffer);
      self->cache_buffer = NULL;
    }
#endif
  self->get = klass->get; /* cache the sampler in the instance */
}
Ejemplo n.º 5
0
static int
test (void)
{
  int   components;
  int   OK = 1;

  for (components = 1; components < 2048; components ++)
  {
    const Babl *fish;
    const Babl *src_fmt;
    const Babl *dst_fmt;
    int   i;

    src_fmt = babl_format_n (babl_type ("float"), components);
    dst_fmt = babl_format_n (babl_type ("u8"), components);

    fish = babl_fish (src_fmt, dst_fmt);

    babl_process (fish, source_buf, destination_buf, PIXELS);

    for (i = 0; i < PIXELS * components; i++)
      {
        if (abs (destination_buf[i] - reference_buf[i]) > TOLERANCE)
          {
            babl_log ("%i-components, pixel %i component %i is %i should be %i",
                      components, i / components, i % components, destination_buf[i], reference_buf[i]);
            OK = 0;
          }
      }
  }
  if (!OK)
    return -1;
  return 0;
}
Ejemplo n.º 6
0
static void
transfer_registration_color (GeglBuffer  *src,
                             GeglBuffer **dst,
                             gint         count)
{
  GimpRGB color, test;
  GeglBufferIterator *gi;
  const Babl *src_format, *dst_format;
  gint i, src_bpp, dst_bpp;
  gdouble white;

  gimp_context_get_foreground (&color);
  white = 1.0;

  src_format = gegl_buffer_get_format (src);
  src_bpp = babl_format_get_bytes_per_pixel (src_format);

  dst_format = gegl_buffer_get_format (dst[0]);
  dst_bpp = babl_format_get_bytes_per_pixel (dst_format);

  gi = gegl_buffer_iterator_new (src, NULL, 0, NULL,
                                 GEGL_BUFFER_READ, GEGL_ABYSS_NONE);

  for (i = 0; i < count; i++)
    {
      gegl_buffer_iterator_add (gi, dst[i], NULL, 0, NULL,
                                GEGL_BUFFER_READWRITE, GEGL_ABYSS_NONE);
    }

  while (gegl_buffer_iterator_next (gi))
    {
      guint j, k;
      gpointer src_data, dst_data[MAX_EXTRACT_IMAGES];

      src_data = gi->data[0];
      for (j = 0; j < count; j++)
        dst_data[j] = gi->data[j+1];

      for (k = 0; k < gi->length; k++)
        {
          gulong pos;
          pos = k * src_bpp;
          gimp_rgba_set_pixel (&test, src_format, ((guchar *)src_data) + pos);

          if (gimp_rgb_distance (&test, &color) < 1e-6)
            {
              for (j = 0; j < count; j++)
                {
                  gpointer data;
                  data = dst_data[j];
                  babl_process (babl_fish (babl_format ("Y double"), dst_format),
                                &white, (guchar *)data + (k * dst_bpp), 1);
                }
            }
        }
    }
}
Ejemplo n.º 7
0
static BablPalette *make_pal (const Babl *format, const void *data, int count)
{
  BablPalette *pal = NULL;
  int bpp = babl_format_get_bytes_per_pixel (format);

  pal = babl_malloc (sizeof (BablPalette));
  pal->count = count;
  pal->format = format;
  pal->data = babl_malloc (bpp * count);
  pal->data_double = babl_malloc (4 * sizeof(double) * count);
  pal->data_u8 = babl_malloc (4 * sizeof(char) * count);
  memcpy (pal->data, data, bpp * count);

  babl_process (babl_fish (format, babl_format ("RGBA double")),
                data, pal->data_double, count);
  babl_process (babl_fish (format, babl_format ("RGBA u8")),
                data, pal->data_u8, count);

  babl_palette_reset_hash (pal);

  return pal;
}
Ejemplo n.º 8
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static void
color_pre_process (const Babl   *format,
                   const gfloat *in,
                   const gfloat *layer,
                   gfloat       *out,
                   glong         samples)
{
    gfloat tmp[4 * samples], *layer_lab = tmp;
    gint   i;

    babl_process (babl_fish (format, "CIE L alpha float"), in, &out[2 * samples], samples);
    babl_process (babl_fish (format, "CIE Lab alpha float"), layer, layer_lab, samples);

    for (i = 0; i < samples; ++i)
    {
        out[4 * i + 0] = out[2 * samples + 2 * i + 0];
        out[4 * i + 1] = layer_lab[4 * i + 1];
        out[4 * i + 2] = layer_lab[4 * i + 2];
        out[4 * i + 3] = out[2 * samples + 2 * i + 1];
    }

    babl_process (babl_fish ("CIE Lab alpha float", format), out, out, samples);
}
Ejemplo n.º 9
0
static int
table_destination_sum_each (Babl *babl,
                            void *userdata)
{
  const Babl *source      = userdata;
  const Babl *destination = babl;

  if (source != destination)
    {
      const Babl *fish = babl_fish (source, destination);
      babl_assert (fish);
      sum_pixels += fish->fish.pixels;
    }
  return 0;
}
Ejemplo n.º 10
0
void
gimp_operation_layer_mode_blend_luminance (const gfloat *in,
                                           const gfloat *layer,
                                           gfloat       *comp,
                                           gint          samples)
{
  static const Babl *fish;
  gfloat            *scratch;
  gfloat            *in_Y;
  gfloat            *layer_Y;

  if (! fish)
    fish = babl_fish ("RGBA float", "Y float");

  scratch = gegl_scratch_new (gfloat, 2 * samples);

  in_Y    = scratch;
  layer_Y = scratch + samples;

  babl_process (fish, in,    in_Y,    samples);
  babl_process (fish, layer, layer_Y, samples);

  while (samples--)
    {
      if (layer[ALPHA] != 0.0f && in[ALPHA] != 0.0f)
        {
          gfloat ratio = safe_div (layer_Y[0], in_Y[0]);
          gint   c;

          for (c = 0; c < 3; c ++)
            comp[c] = in[c] * ratio;
        }

      comp[ALPHA] = layer[ALPHA];

      comp    += 4;
      in      += 4;
      layer   += 4;
      in_Y    ++;
      layer_Y ++;
    }

  gegl_scratch_free (scratch);
}
Ejemplo n.º 11
0
static int
test (void)
{
  const Babl *fish;
  int   i;
  int   OK = 1;


  fish = babl_fish (
    babl_format_new (
      babl_model ("Y"),
      babl_type ("float"),
      babl_component ("Y"),
      NULL
    ),
    babl_format_new (
      babl_model ("RGB"),
      babl_type ("float"),
      babl_component ("R"),
      babl_component ("G"),
      babl_component ("B"),
      NULL
    )
         );

  babl_process (fish,
                grayscale_buf, rgb_buf,
                PIXELS);

  for (i = 0; i < PIXELS * 3; i++)
    {
      if (rgb_buf[i] != rgb_buf_ref[i])
        {
          babl_log ("index %i is problematic : %f instead of %f",
                    i, rgb_buf[i], rgb_buf_ref[i]);
          OK = 0;
        }
    }
  if (!OK)
    return -1;
  return 0;
}
Ejemplo n.º 12
0
static BablPalette *
default_palette (void)
{
  static BablPalette pal;
  static int inited = 0;

  babl_mutex_lock (babl_format_mutex);

  if (inited)
    {
      babl_mutex_unlock (babl_format_mutex);

      return &pal;
    }

  init_ceil_sqrt_u8 ();

  memset (&pal, 0, sizeof (pal));
  pal.count = 16;
  pal.format = babl_format ("R'G'B'A u8"); /* dynamically generated, so
                                              the default palette can
                                              not be fully static.
                                            */
  pal.data = defpal_data;
  pal.data_double = defpal_double;
  pal.data_u8 = defpal_data;
  pal.radii = defpal_radii;

  babl_process (babl_fish (pal.format, babl_format ("RGBA double")),
                pal.data, pal.data_double, pal.count);

  babl_palette_init_radii (&pal);

  babl_palette_reset_hash (&pal);

  inited = 1;

  babl_mutex_unlock (babl_format_mutex);

  return &pal;
}
Ejemplo n.º 13
0
static int
test (void)
{
  const Babl *fish;
  int   i;
  int   OK = 1;

  fish = babl_fish (
    babl_format_new (
      babl_model ("RGB"),
      babl_type ("u8"),
      babl_component ("R"),
      babl_component ("G"),
      babl_component ("B"),
      NULL
    ),
    babl_format_new (
      babl_model ("RGB"),
      babl_type ("u8"),
      babl_component ("B"),
      babl_component ("G"),
      babl_component ("R"),
      NULL
    )
         );

  babl_process (fish, source_buf, destination_buf, PIXELS);

  for (i = 0; i < PIXELS * 3; i++)
    {
      if (abs (destination_buf[i] - reference_buf[i]) > TOLERANCE)
        {
          babl_log ("%2i (%2i%%3=%i, %2i/3=%i) is %i should be %i",
                    i, i, i % 3, i, i / 3, destination_buf[i], reference_buf[i]);
          OK = 0;
        }
    }
  if (!OK)
    return -1;
  return 0;
}
Ejemplo n.º 14
0
static BablPalette *default_palette (void)
{
  static BablPalette pal;
  static int inited = 0;
  if (inited)
    return &pal;
  memset (&pal, 0, sizeof (pal));
  inited = 1;
  pal.count = 16;
  pal.format = babl_format ("RGBA u8"); /* dynamically generated, so
                                           the default palette can
                                           not be fully static.
                                         */
  pal.data = defpal_data;
  pal.data_double = defpal_double;
  pal.data_u8 = defpal_data;

  babl_process (babl_fish (pal.format, babl_format ("RGBA double")),
                pal.data, pal.data_double, pal.count);

  babl_palette_reset_hash (&pal);
  return &pal;
}
Ejemplo n.º 15
0
static int
test (void)
{
  int i;
  int OK = 1;

  babl_process (babl_fish (babl_format_with_space ("R'G'B' u8", babl_space("Apple")), "R'G'B' u8"),
                source_buf, destination_buf,
                PIXELS);

  for (i = 0; i < PIXELS * 3; i++)
    {
      if (abs (destination_buf[i] - reference_buf[i]) > TOLERANCE)
        {
          babl_log ("%2i (%2i%%3=%i, %2i/3=%i) is %i should be %i",
                    i, i, i % 3, i, i / 3, destination_buf[i], reference_buf[i]);
          OK = 0;
        }
    }
  if (!OK)
    return -1;
  return 0;
}
Ejemplo n.º 16
0
/*
  Returns 2048 samples of the gradient.
  Each sample is (R'G'B'A float) or (Y'A float), depending on the drawable
 */
static gdouble *
get_samples_gradient (gint32 drawable_id)
{
  gchar   *gradient_name;
  gint     n_d_samples;
  gdouble *d_samples = NULL;

  gradient_name = gimp_context_get_gradient ();

  /* FIXME: "reverse" hardcoded to FALSE. */
  gimp_gradient_get_uniform_samples (gradient_name, NSAMPLES, FALSE,
                                     &n_d_samples, &d_samples);
  g_free (gradient_name);

  if (!gimp_drawable_is_rgb (drawable_id))
    {
      const Babl *format_src = babl_format ("R'G'B'A double");
      const Babl *format_dst = babl_format ("Y'A double");
      const Babl *fish = babl_fish (format_src, format_dst);
      babl_process (fish, d_samples, d_samples, NSAMPLES);
    }

  return d_samples;
}
Ejemplo n.º 17
0
/**
 * gimp_color_transform_process_buffer:
 * @transform:
 * @src_format:
 * @src_rect:
 * @dest_format:
 * @dest_rect:
 *
 * This function transforms buffer into another buffer.
 *
 * Since: 2.10
 **/
void
gimp_color_transform_process_buffer (GimpColorTransform  *transform,
                                     GeglBuffer          *src_buffer,
                                     const GeglRectangle *src_rect,
                                     GeglBuffer          *dest_buffer,
                                     const GeglRectangle *dest_rect)
{
  GimpColorTransformPrivate *priv;
  GeglBufferIterator        *iter;
  gint                       total_pixels;
  gint                       done_pixels = 0;

  g_return_if_fail (GIMP_IS_COLOR_TRANSFORM (transform));
  g_return_if_fail (GEGL_IS_BUFFER (src_buffer));
  g_return_if_fail (GEGL_IS_BUFFER (dest_buffer));

  priv = transform->priv;

  if (src_rect)
    {
      total_pixels = src_rect->width * src_rect->height;
    }
  else
    {
      total_pixels = (gegl_buffer_get_width  (src_buffer) *
                      gegl_buffer_get_height (src_buffer));
    }

  if (src_buffer != dest_buffer)
    {
      const Babl *fish = NULL;

      if (babl_format_has_alpha (priv->dest_format))
        fish = babl_fish (priv->src_format,
                          priv->dest_format);

      iter = gegl_buffer_iterator_new (src_buffer, src_rect, 0,
                                       priv->src_format,
                                       GEGL_ACCESS_READ,
                                       GEGL_ABYSS_NONE);

      gegl_buffer_iterator_add (iter, dest_buffer, dest_rect, 0,
                                priv->dest_format,
                                GEGL_ACCESS_WRITE,
                                GEGL_ABYSS_NONE);

      while (gegl_buffer_iterator_next (iter))
        {
          /* make sure the alpha channel is copied too, lcms doesn't copy it */
          if (fish)
            babl_process (fish, iter->data[0], iter->data[1], iter->length);

          cmsDoTransform (priv->transform,
                          iter->data[0], iter->data[1], iter->length);

          done_pixels += iter->roi[0].width * iter->roi[0].height;

          g_signal_emit (transform, gimp_color_transform_signals[PROGRESS], 0,
                         (gdouble) done_pixels /
                         (gdouble) total_pixels);
        }
    }
  else
    {
      iter = gegl_buffer_iterator_new (src_buffer, src_rect, 0,
                                       priv->src_format,
                                       GEGL_ACCESS_READWRITE,
                                       GEGL_ABYSS_NONE);

      while (gegl_buffer_iterator_next (iter))
        {
          cmsDoTransform (priv->transform,
                          iter->data[0], iter->data[0], iter->length);

          done_pixels += iter->roi[0].width * iter->roi[0].height;

          g_signal_emit (transform, gimp_color_transform_signals[PROGRESS], 0,
                         (gdouble) done_pixels /
                         (gdouble) total_pixels);
        }
    }

  g_signal_emit (transform, gimp_color_transform_signals[PROGRESS], 0,
                 1.0);
}
Ejemplo n.º 18
0
/**
 * gimp_color_transform_process_pixels:
 * @transform:
 * @src_format:
 * @src_pixels:
 * @dest_format:
 * @dest_pixels:
 * @length:
 *
 * This function transforms a contiguous line of pixels.
 *
 * Since: 2.10
 **/
void
gimp_color_transform_process_pixels (GimpColorTransform *transform,
                                     const Babl         *src_format,
                                     gconstpointer       src_pixels,
                                     const Babl         *dest_format,
                                     gpointer            dest_pixels,
                                     gsize               length)
{
  GimpColorTransformPrivate *priv;
  gpointer                  *src;
  gpointer                  *dest;

  g_return_if_fail (GIMP_IS_COLOR_TRANSFORM (transform));
  g_return_if_fail (src_format != NULL);
  g_return_if_fail (src_pixels != NULL);
  g_return_if_fail (dest_format != NULL);
  g_return_if_fail (dest_pixels != NULL);

  priv = transform->priv;

  if (src_format != priv->src_format)
    {
      src = g_malloc (length * babl_format_get_bytes_per_pixel (priv->src_format));

      babl_process (babl_fish (src_format,
                               priv->src_format),
                    src_pixels, src, length);
    }
  else
    {
      src = (gpointer) src_pixels;
    }

  if (dest_format != priv->dest_format)
    {
      dest = g_malloc (length * babl_format_get_bytes_per_pixel (priv->dest_format));
    }
  else
    {
      dest = dest_pixels;
    }

  /* copy the alpha channel */
  if (src != dest && babl_format_has_alpha (dest_format))
    babl_process (babl_fish (src_format,
                             priv->dest_format),
                  src, dest, length);

  cmsDoTransform (priv->transform, src, dest, length);

  if (src_format != priv->src_format)
    {
      g_free (src);
    }

  if (dest_format != priv->dest_format)
    {
      babl_process (babl_fish (priv->dest_format,
                               dest_format),
                    dest, dest_pixels, length);

      g_free (dest);
    }
}
Ejemplo n.º 19
0
static void inline
gegl_sampler_get_pixel (GeglSampler    *sampler,
                        gint            x,
                        gint            y,
                        gpointer        data,
                        GeglAbyssPolicy repeat_mode)
{
  GeglSamplerNearest *nearest_sampler = (GeglSamplerNearest*)(sampler);
  GeglBuffer *buffer = sampler->buffer;
  const GeglRectangle *abyss = &buffer->abyss;
  guchar              *buf   = data;

  if (y <  abyss->y ||
      x <  abyss->x ||
      y >= abyss->y + abyss->height ||
      x >= abyss->x + abyss->width)
    {
      switch (repeat_mode)
      {
        case GEGL_ABYSS_CLAMP:
          x = CLAMP (x, abyss->x, abyss->x+abyss->width-1);
          y = CLAMP (y, abyss->y, abyss->y+abyss->height-1);
          break;

        case GEGL_ABYSS_LOOP:
          x = abyss->x + GEGL_REMAINDER (x - abyss->x, abyss->width);
          y = abyss->y + GEGL_REMAINDER (y - abyss->y, abyss->height);
          break;

        case GEGL_ABYSS_BLACK:
          {
            gfloat color[4] = {0.0, 0.0, 0.0, 1.0};
            babl_process (babl_fish (gegl_babl_rgba_linear_float (), sampler->format),
                          color,
                          buf,
                          1);
            return;
          }

        case GEGL_ABYSS_WHITE:
          {
            gfloat color[4] = {1.0, 1.0, 1.0, 1.0};
            babl_process (babl_fish (gegl_babl_rgba_linear_float (),
                                     sampler->format),
                          color,
                          buf,
                          1);
            return;
          }

        default:
        case GEGL_ABYSS_NONE:
          memset (buf, 0x00, babl_format_get_bytes_per_pixel (sampler->format));
          return;
      }
    }

  gegl_buffer_lock (sampler->buffer);

  {
    gint tile_width  = buffer->tile_width;
    gint tile_height = buffer->tile_height;
    gint tiledy      = y + buffer->shift_y;
    gint tiledx      = x + buffer->shift_x;
    gint indice_x    = gegl_tile_indice (tiledx, tile_width);
    gint indice_y    = gegl_tile_indice (tiledy, tile_height);

    GeglTile *tile = nearest_sampler->hot_tile;

    if (!(tile &&
          tile->x == indice_x &&
          tile->y == indice_y))
      {
        if (gegl_config_threads()>1)
          g_rec_mutex_lock (&buffer->tile_storage->mutex);

        if (tile)
          gegl_tile_unref (tile);

        tile = gegl_tile_source_get_tile ((GeglTileSource *) (buffer),
                                          indice_x, indice_y,
                                          0);
        nearest_sampler->hot_tile = tile;

        if (gegl_config_threads()>1)
          g_rec_mutex_unlock (&buffer->tile_storage->mutex);
      }

    if (tile)
      {
        gint tile_origin_x = indice_x * tile_width;
        gint tile_origin_y = indice_y * tile_height;
        gint       offsetx = tiledx - tile_origin_x;
        gint       offsety = tiledy - tile_origin_y;

        guchar *tp = gegl_tile_get_data (tile) + (offsety * tile_width + offsetx) * nearest_sampler->buffer_bpp;

        babl_process (sampler->fish, tp, buf, 1);
      }
  }

  gegl_buffer_unlock (sampler->buffer);
}
Ejemplo n.º 20
0
static void
gimp_color_frame_update (GimpColorFrame *frame)
{
  const gchar  *names[GIMP_COLOR_FRAME_ROWS]  = { NULL, };
  gchar       **values = NULL;
  gboolean      has_alpha;
  gint          i;

  has_alpha = babl_format_has_alpha (frame->sample_format);

  if (frame->sample_valid)
    {
      gimp_color_area_set_color (GIMP_COLOR_AREA (frame->color_area),
                                 &frame->color);
    }

  switch (frame->frame_mode)
    {
    case GIMP_COLOR_FRAME_MODE_PIXEL:
      {
        GimpImageBaseType base_type;

        base_type = gimp_babl_format_get_base_type (frame->sample_format);

        if (frame->sample_valid)
          {
            const Babl *print_format = NULL;
            guchar      print_pixel[32];

            switch (gimp_babl_format_get_precision (frame->sample_format))
              {
              case GIMP_PRECISION_U8_GAMMA:
                if (babl_format_is_palette (frame->sample_format))
                  {
                    print_format = gimp_babl_format (GIMP_RGB,
                                                     GIMP_PRECISION_U8_GAMMA,
                                                     has_alpha);
                    break;
                  }
                /* else fall thru */

              case GIMP_PRECISION_U8_LINEAR:
              case GIMP_PRECISION_U16_LINEAR:
              case GIMP_PRECISION_U16_GAMMA:
              case GIMP_PRECISION_U32_LINEAR:
              case GIMP_PRECISION_U32_GAMMA:
              case GIMP_PRECISION_FLOAT_LINEAR:
              case GIMP_PRECISION_FLOAT_GAMMA:
              case GIMP_PRECISION_DOUBLE_LINEAR:
              case GIMP_PRECISION_DOUBLE_GAMMA:
                print_format = frame->sample_format;
                break;

              case GIMP_PRECISION_HALF_GAMMA:
                print_format = gimp_babl_format (base_type,
                                                 GIMP_PRECISION_FLOAT_GAMMA,
                                                 has_alpha);
                break;

              case GIMP_PRECISION_HALF_LINEAR:
                print_format = gimp_babl_format (base_type,
                                                 GIMP_PRECISION_FLOAT_LINEAR,
                                                 has_alpha);
                break;
              }

            if (frame->sample_average)
              {
                /* FIXME: this is broken: can't use the averaged sRGB GimpRGB
                 * value for displaying pixel values when color management
                 * is enabled
                 */
                gimp_rgba_get_pixel (&frame->color, print_format, print_pixel);
              }
            else
              {
                babl_process (babl_fish (frame->sample_format, print_format),
                              frame->pixel, print_pixel, 1);
              }

            values = gimp_babl_print_pixel (print_format, print_pixel);
          }

        if (base_type == GIMP_GRAY)
          {
            names[0] = _("Value:");

            if (has_alpha)
              names[1] = _("Alpha:");
          }
        else
          {
            names[0] = _("Red:");
            names[1] = _("Green:");
            names[2] = _("Blue:");

            if (has_alpha)
              names[3] = _("Alpha:");

            if (babl_format_is_palette (frame->sample_format))
              {
                names[4] = _("Index:");

                if (frame->sample_valid)
                  {
                    gchar **v   = g_new0 (gchar *, 6);
                    gchar **tmp = values;

                    memcpy (v, values, 4 * sizeof (gchar *));
                    values = v;

                    g_free (tmp);

                    if (! frame->sample_average)
                      values[4] = g_strdup_printf ("%d", frame->pixel[0]);
                  }
              }
          }
      }
Ejemplo n.º 21
0
static int
table_destination_each (Babl *babl,
                        void *userdata)
{
  Babl *source      = userdata;
  Babl *destination = babl;

  qux++;
  if (qux % babl_formats_count () == qux / babl_formats_count ())
    fprintf (output_file, "<td class='cell'>&nbsp;</td>");
  else
    {
      const Babl *fish = babl_fish (source, destination);

      babl_assert (fish);


      switch (fish->class_type)
        {
          case BABL_FISH_PATH:

            fprintf (output_file, "<td class='cell'%s><a href='javascript:o()'>%s",
                     fish->fish.pixels / sum_pixels > LIMIT ? " style='background-color: #69f'" : "",
                     utf8_bar[babl_list_size (fish->fish_path.conversion_list)]);

            {
              int i;
              fprintf (output_file, "<div class='tooltip'>");
              fprintf (output_file, "<h3><span class='g'>path</span> %s <span class='g'>to</span> %s</h3>", source->instance.name, destination->instance.name);
              if (fish->fish.processings > 0)
                {
                  fprintf (output_file, "<span class='g'>Processings:</span>%i<br/>", fish->fish.processings);
                  fprintf (output_file, "<span class='g'>Pixels:</span>%li<br/>", fish->fish.pixels);
                }
              fprintf (output_file, "<table>\n");

              fprintf (output_file, "<tr>");
              fprintf (output_file, "<td><em>conversion</em></td>");
              fprintf (output_file, "<td style='text-align:right'><em>cost</em></td>");
              fprintf (output_file, "<td style='text-align:right'><em>error</em></td>");
              fprintf (output_file, "</tr>");

              for (i = 0; i < babl_list_size (fish->fish_path.conversion_list); i++)
                {
                  fprintf (output_file, "<tr>");
                  fprintf (output_file, "<td>%s</td>", BABL (fish->fish_path.conversion_list->items[i])->instance.name);
                  fprintf (output_file, "<td class='r'>%li</td>",
                    babl_conversion_cost (&BABL (fish->fish_path.conversion_list->items[i])->conversion));
                  fprintf (output_file, "<td class='r'>%e</td>",
                    babl_conversion_error (&BABL (fish->fish_path.conversion_list->items[i])->conversion));
                  fprintf (output_file, "</tr>");
                }

              fprintf (output_file, "<tr>");
              fprintf (output_file, "<td><em>total</em></td>");
              fprintf (output_file, "<td class='r'><em>%3.0f</em></td>", fish->fish_path.cost);
              fprintf (output_file, "<td class='r'><em>%e</em></td>", fish->fish.error);
              fprintf (output_file, "</tr>");
              fprintf (output_file, "</table>");
              fprintf (output_file, "</div>");
            }
            fprintf (output_file, "</a></td>\n");
            break;

          case BABL_FISH_REFERENCE:
            fprintf (output_file, "<td class='cell'%s><a href='javascript:o()'>&nbsp",
                     fish->fish.pixels / sum_pixels > LIMIT ? " style='background-color: #f99'" : "");
            fprintf (output_file, "<div class='tooltip'>");
            fprintf (output_file, "<h3><span class='g'>Reference</span> %s <span class='g'>to</span> %s</h3>", source->instance.name, destination->instance.name);

            if (fish->fish.processings > 1)
              {
                fprintf (output_file, "<span class='g'>Processings:</span>%i<br/>", fish->fish.processings);
                fprintf (output_file, "<span class='g'>Pixels:</span>%li<br/>", fish->fish.pixels);
              }
            fprintf (output_file, "</div>");
            fprintf (output_file, "</a></td>\n");
            break;

          case BABL_FISH_SIMPLE:
            fprintf (output_file, "<td class='cell'%s><a href='javascript:o()'>&middot;",
                     fish->fish.pixels / sum_pixels > LIMIT ? " style='background-color: #69f'" : "");
            fprintf (output_file, "<div class='tooltip'>");
            fprintf (output_file, "<h3><span class='g'>Simple</span> %s <span class='g'>to</span> %s</h3>", source->instance.name, destination->instance.name);


            fprintf (output_file, "%s<br/>", BABL (fish->fish_simple.conversion)->instance.name);
            fprintf (output_file, "<span class='g'>cost:</span> %li<br/>", babl_conversion_cost ((fish->fish_simple.conversion)));
            fprintf (output_file, "<span class='g'>error:</span> %e<br/>", babl_conversion_error ((fish->fish_simple.conversion)));

            if (fish->fish.processings > 0)
              {
                fprintf (output_file, "<span class='g'>Processings:</span>%i<br/>", fish->fish.processings);
                fprintf (output_file, "<span class='g'>Pixels:</span>%li<br/>", fish->fish.pixels);
              }
            fprintf (output_file, "</div>");
            fprintf (output_file, "</a></td>\n");
            break;

          default:
            babl_fatal ("Unknown fish type");
            break;
        }
    }
  return 0;
}
Ejemplo n.º 22
0
static void
gimp_view_render_temp_buf_to_surface (GimpViewRenderer *renderer,
                                      GtkWidget        *widget,
                                      GimpTempBuf      *temp_buf,
                                      gint              temp_buf_x,
                                      gint              temp_buf_y,
                                      gint              channel,
                                      GimpViewBG        inside_bg,
                                      GimpViewBG        outside_bg,
                                      cairo_surface_t  *surface,
                                      gint              surface_width,
                                      gint              surface_height)
{
  cairo_t    *cr;
  gint        x, y;
  gint        width, height;
  const Babl *temp_buf_format;
  gint        temp_buf_width;
  gint        temp_buf_height;

  g_return_if_fail (temp_buf != NULL);
  g_return_if_fail (surface != NULL);

  temp_buf_format = gimp_temp_buf_get_format (temp_buf);
  temp_buf_width  = gimp_temp_buf_get_width  (temp_buf);
  temp_buf_height = gimp_temp_buf_get_height (temp_buf);

  /*  Here are the different cases this functions handles correctly:
   *  1)  Offset temp_buf which does not necessarily cover full image area
   *  2)  Color conversion of temp_buf if it is gray and image is color
   *  3)  Background check buffer for transparent temp_bufs
   *  4)  Using the optional "channel" argument, one channel can be extracted
   *      from a multi-channel temp_buf and composited as a grayscale
   *  Prereqs:
   *  1)  Grayscale temp_bufs have bytes == {1, 2}
   *  2)  Color temp_bufs have bytes == {3, 4}
   *  3)  If image is gray, then temp_buf should have bytes == {1, 2}
   */

  cr = cairo_create (surface);

  if (outside_bg == GIMP_VIEW_BG_CHECKS ||
      inside_bg  == GIMP_VIEW_BG_CHECKS)
    {
      if (! renderer->pattern)
        renderer->pattern =
          gimp_cairo_checkerboard_create (cr, GIMP_CHECK_SIZE_SM,
                                          gimp_render_light_check_color (),
                                          gimp_render_dark_check_color ());
    }

  switch (outside_bg)
    {
    case GIMP_VIEW_BG_CHECKS:
      cairo_set_source (cr, renderer->pattern);
      break;

    case GIMP_VIEW_BG_WHITE:
      cairo_set_source_rgb (cr, 1.0, 1.0, 1.0);
      break;
    }

  cairo_paint (cr);

  if (! gimp_rectangle_intersect (0, 0,
                                  surface_width, surface_height,
                                  temp_buf_x, temp_buf_y,
                                  temp_buf_width, temp_buf_height,
                                  &x, &y,
                                  &width, &height))
    {
      cairo_destroy (cr);
      return;
    }

  if (inside_bg != outside_bg &&
      babl_format_has_alpha (temp_buf_format) && channel == -1)
    {
      cairo_rectangle (cr, x, y, width, height);

      switch (inside_bg)
        {
        case GIMP_VIEW_BG_CHECKS:
          cairo_set_source (cr, renderer->pattern);
          break;

        case GIMP_VIEW_BG_WHITE:
          cairo_set_source_rgb (cr, 1.0, 1.0, 1.0);
          break;
        }

      cairo_fill (cr);
    }

  if (babl_format_has_alpha (temp_buf_format) && channel == -1)
    {
      GeglBuffer      *src_buffer;
      GeglBuffer      *dest_buffer;
      cairo_surface_t *alpha_surface;

      alpha_surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
                                                  width, height);

      src_buffer  = gimp_temp_buf_create_buffer (temp_buf);
      dest_buffer = gimp_cairo_surface_create_buffer (alpha_surface);

      if (! renderer->profile_transform)
        gimp_view_renderer_transform_create (renderer, widget,
                                             src_buffer, dest_buffer);

      if (renderer->profile_transform)
        {
          gimp_gegl_convert_color_transform (src_buffer,
                                             GEGL_RECTANGLE (x - temp_buf_x,
                                                             y - temp_buf_y,
                                                             width, height),
                                             renderer->profile_src_format,
                                             dest_buffer,
                                             GEGL_RECTANGLE (0, 0, 0, 0),
                                             renderer->profile_dest_format,
                                             renderer->profile_transform);
        }
      else
        {
          gegl_buffer_copy (src_buffer,
                            GEGL_RECTANGLE (x - temp_buf_x,
                                            y - temp_buf_y,
                                            width, height),
                            GEGL_ABYSS_NONE,
                            dest_buffer,
                            GEGL_RECTANGLE (0, 0, 0, 0));
        }

      g_object_unref (src_buffer);
      g_object_unref (dest_buffer);

      cairo_surface_mark_dirty (alpha_surface);

      cairo_translate (cr, x, y);
      cairo_rectangle (cr, 0, 0, width, height);
      cairo_set_source_surface (cr, alpha_surface, 0, 0);
      cairo_fill (cr);

      cairo_surface_destroy (alpha_surface);
    }
  else if (channel == -1)
    {
      GeglBuffer *src_buffer;
      GeglBuffer *dest_buffer;

      cairo_surface_flush (surface);

      src_buffer  = gimp_temp_buf_create_buffer (temp_buf);
      dest_buffer = gimp_cairo_surface_create_buffer (surface);

      if (! renderer->profile_transform)
        gimp_view_renderer_transform_create (renderer, widget,
                                             src_buffer, dest_buffer);

      if (renderer->profile_transform)
        {
          gimp_gegl_convert_color_transform (src_buffer,
                                             GEGL_RECTANGLE (x - temp_buf_x,
                                                             y - temp_buf_y,
                                                             width, height),
                                             renderer->profile_src_format,
                                             dest_buffer,
                                             GEGL_RECTANGLE (x, y, 0, 0),
                                             renderer->profile_dest_format,
                                             renderer->profile_transform);
        }
      else
        {
          gegl_buffer_copy (src_buffer,
                            GEGL_RECTANGLE (x - temp_buf_x,
                                            y - temp_buf_y,
                                            width, height),
                            GEGL_ABYSS_NONE,
                            dest_buffer,
                            GEGL_RECTANGLE (x, y, 0, 0));
        }

      g_object_unref (src_buffer);
      g_object_unref (dest_buffer);

      cairo_surface_mark_dirty (surface);
    }
  else
    {
      const Babl   *fish;
      const guchar *src;
      guchar       *dest;
      gint          dest_stride;
      gint          bytes;
      gint          rowstride;
      gint          i;

      cairo_surface_flush (surface);

      bytes     = babl_format_get_bytes_per_pixel (temp_buf_format);
      rowstride = temp_buf_width * bytes;

      src = gimp_temp_buf_get_data (temp_buf) + ((y - temp_buf_y) * rowstride +
                                                 (x - temp_buf_x) * bytes);

      dest        = cairo_image_surface_get_data (surface);
      dest_stride = cairo_image_surface_get_stride (surface);

      dest += y * dest_stride + x * 4;

      fish = babl_fish (temp_buf_format,
                        babl_format ("cairo-RGB24"));

      for (i = y; i < (y + height); i++)
        {
          const guchar *s = src;
          guchar       *d = dest;
          gint          j;

          for (j = x; j < (x + width); j++, d += 4, s += bytes)
            {
              if (bytes > 2)
                {
                  guchar pixel[4] = { s[channel], s[channel], s[channel], 255 };

                  babl_process (fish, pixel, d, 1);
                }
              else
                {
                  guchar pixel[2] = { s[channel], 255 };

                  babl_process (fish, pixel, d, 1);
                }
            }

          src += rowstride;
          dest += dest_stride;
        }

      cairo_surface_mark_dirty (surface);
    }

  cairo_destroy (cr);
}