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added a preview. Not sure if it is really useful... 

* plug-ins/common/deinterlace.c: added a preview. Not sure if it is
  really useful...
This commit is contained in:
David Odin 2004-09-20 13:36:20 +00:00
parent 2b41574f66
commit bc68cf107e
2 changed files with 165 additions and 102 deletions
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5
ChangeLog
View File

@ -1,3 +1,8 @@
2004-09-20 DindinX <dindinx@gimp.org>
* plug-ins/common/deinterlace.c: added a preview. Not sure if it is
really useful...
2004-09-20 DindinX <dindinx@gimp.org>
* plug-ins/common/shift.c: added a preview.

262
plug-ins/common/deinterlace.c
View File

@ -37,18 +37,26 @@ enum
EVEN_FIELDS
};
typedef struct
{
gint evenness;
gboolean preview;
} DeinterlaceValues;
/* Declare local functions.
*/
static void query (void);
static void run (const gchar *name,
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals);
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals);
static void deinterlace (GimpDrawable *drawable);
static gboolean deinterlace_dialog (void);
static void deinterlace (GimpDrawable *drawable,
GimpDrawablePreview *preview);
static gboolean deinterlace_dialog (GimpDrawable *drawable);
GimpPlugInInfo PLUG_IN_INFO =
@ -59,7 +67,11 @@ GimpPlugInInfo PLUG_IN_INFO =
run, /* run_proc */
};
static gint DeinterlaceValue = EVEN_FIELDS;
static DeinterlaceValues devals =
{
EVEN_FIELDS, /* evenness */
TRUE /* preview */
};
MAIN ()
@ -75,20 +87,20 @@ query (void)
};
gimp_install_procedure ("plug_in_deinterlace",
"Deinterlace",
"Deinterlace is useful for processing images from "
"video capture cards. When only the odd or even "
"fields get captured, deinterlace can be used to "
"interpolate between the existing fields to correct "
"this.",
"Andrew Kieschnick",
"Andrew Kieschnick",
"1997",
N_("_Deinterlace..."),
"RGB*, GRAY*",
GIMP_PLUGIN,
G_N_ELEMENTS (args), 0,
args, NULL);
"Deinterlace",
"Deinterlace is useful for processing images from "
"video capture cards. When only the odd or even "
"fields get captured, deinterlace can be used to "
"interpolate between the existing fields to correct "
"this.",
"Andrew Kieschnick",
"Andrew Kieschnick",
"1997",
N_("_Deinterlace..."),
"RGB*, GRAY*",
GIMP_PLUGIN,
G_N_ELEMENTS (args), 0,
args, NULL);
gimp_plugin_menu_register ("plug_in_deinterlace",
N_("<Image>/Filters/Enhance"));
@ -116,20 +128,20 @@ run (const gchar *name,
switch (run_mode)
{
case GIMP_RUN_INTERACTIVE:
gimp_get_data ("plug_in_deinterlace", &DeinterlaceValue);
if (! deinterlace_dialog ())
status = GIMP_PDB_EXECUTION_ERROR;
gimp_get_data ("plug_in_deinterlace", &devals);
if (! deinterlace_dialog (drawable))
status = GIMP_PDB_EXECUTION_ERROR;
break;
case GIMP_RUN_NONINTERACTIVE:
if (nparams != 4)
status = GIMP_PDB_CALLING_ERROR;
status = GIMP_PDB_CALLING_ERROR;
if (status == GIMP_PDB_SUCCESS)
DeinterlaceValue = param[3].data.d_int32;
devals.evenness = param[3].data.d_int32;
break;
case GIMP_RUN_WITH_LAST_VALS:
gimp_get_data ("plug_in_deinterlace", &DeinterlaceValue);
gimp_get_data ("plug_in_deinterlace", &devals);
break;
default:
@ -140,24 +152,24 @@ run (const gchar *name,
{
/* Make sure that the drawable is gray or RGB color */
if (gimp_drawable_is_rgb (drawable->drawable_id) ||
gimp_drawable_is_gray (drawable->drawable_id))
{
gimp_progress_init (_("Deinterlace..."));
gimp_tile_cache_ntiles (2 * (drawable->width /
gimp_tile_width () + 1));
deinterlace (drawable);
gimp_drawable_is_gray (drawable->drawable_id))
{
gimp_progress_init (_("Deinterlace..."));
gimp_tile_cache_ntiles (2 * (drawable->width /
gimp_tile_width () + 1));
deinterlace (drawable, NULL);
if (run_mode != GIMP_RUN_NONINTERACTIVE)
gimp_displays_flush ();
if (run_mode == GIMP_RUN_INTERACTIVE)
gimp_set_data ("plug_in_deinterlace",
&DeinterlaceValue, sizeof (DeinterlaceValue));
}
if (run_mode != GIMP_RUN_NONINTERACTIVE)
gimp_displays_flush ();
if (run_mode == GIMP_RUN_INTERACTIVE)
gimp_set_data ("plug_in_deinterlace",
&devals, sizeof (DeinterlaceValues));
}
else
{
/* gimp_message ("deinterlace: cannot operate on indexed color images"); */
status = GIMP_PDB_EXECUTION_ERROR;
}
{
/* gimp_message ("deinterlace: cannot operate on indexed color images"); */
status = GIMP_PDB_EXECUTION_ERROR;
}
}
*nreturn_vals = 1;
*return_vals = values;
@ -169,53 +181,62 @@ run (const gchar *name,
}
static void
deinterlace (GimpDrawable *drawable)
deinterlace (GimpDrawable *drawable,
GimpDrawablePreview *preview)
{
GimpPixelRgn srcPR, destPR;
gint width, height;
gint bytes;
gint has_alpha;
guchar *dest;
guchar *upper;
guchar *lower;
gint row, col;
gint x1, y1, x2, y2;
GimpPixelRgn srcPR, destPR;
gint width, height;
gint bytes;
gboolean has_alpha;
guchar *dest;
guchar *dest_buffer = NULL;
guchar *upper;
guchar *lower;
gint row, col;
gint x1, y1, x2, y2;
gimp_drawable_mask_bounds (drawable->drawable_id, &x1, &y1, &x2, &y2);
has_alpha = gimp_drawable_has_alpha (drawable->drawable_id);
/* Get the size of the input image. (This will/must be the same
* as the size of the output image.
*/
width = drawable->width;
height = drawable->height;
bytes = drawable->bpp;
if (preview)
{
gimp_preview_get_position (GIMP_PREVIEW (preview), &x1, &y1);
gimp_preview_get_size (GIMP_PREVIEW (preview), &width, &height);
dest_buffer = dest = g_new (guchar, width * height * bytes);
}
else
{
gimp_drawable_mask_bounds (drawable->drawable_id, &x1, &y1, &x2, &y2);
width = x2 - x1;
height = y2 - y1;
dest = g_new (guchar, width * height * bytes);
}
has_alpha = gimp_drawable_has_alpha (drawable->drawable_id);
/* allocate row buffers */
dest = g_new (guchar, (x2 - x1) * bytes);
upper = g_new (guchar, (x2 - x1) * bytes);
lower = g_new (guchar, (x2 - x1) * bytes);
upper = g_new (guchar, width * bytes);
lower = g_new (guchar, width * bytes);
/* initialize the pixel regions */
gimp_pixel_rgn_init (&srcPR, drawable, 0, 0, width, height, FALSE, FALSE);
gimp_pixel_rgn_init (&destPR, drawable, 0, 0, width, height, TRUE, TRUE);
/* loop through the rows, performing our magic*/
for (row = y1; row < y2; row++)
for (row = y1; row < y1 + height; row++)
{
gimp_pixel_rgn_get_row (&srcPR, dest, x1, row, x2 - x1);
gimp_pixel_rgn_get_row (&srcPR, dest, x1, row, width);
/* Only do interpolation if the row:
(1) Isn't one we want to keep
(2) Has both an upper and a lower row
Otherwise, just duplicate the source row
(1) Isn't one we want to keep
(2) Has both an upper and a lower row
Otherwise, just duplicate the source row
*/
if (!((row % 2 == DeinterlaceValue) ||
(row - 1 < 0) ||
(row + 1 >= height)))
{
gimp_pixel_rgn_get_row (&srcPR, upper, x1, row - 1, x2 - x1);
gimp_pixel_rgn_get_row (&srcPR, lower, x1, row + 1, x2 - x1);
if (!((row % 2 == devals.evenness) ||
(row - 1 < 0) ||
(row + 1 >= height)))
{
gimp_pixel_rgn_get_row (&srcPR, upper, x1, row - 1, width);
gimp_pixel_rgn_get_row (&srcPR, lower, x1, row + 1, width);
if (has_alpha)
{
@ -223,7 +244,7 @@ deinterlace (GimpDrawable *drawable)
guchar *lpix = lower;
guchar *dpix = dest;
for (col = 0; col < x2-x1; col++)
for (col = 0; col < width; col++)
{
gint b;
guint ualpha = upix[bytes-1];
@ -233,7 +254,7 @@ deinterlace (GimpDrawable *drawable)
if ((dpix[bytes-1] = (alpha >> 1)))
{
for (b = 0; b < bytes-1; b++)
dpix[b] = (upix[b] * ualpha + lpix[b] * lalpha) / alpha;
dpix[b] = (upix[b] * ualpha + lpix[b] * lalpha) / alpha;
}
upix += bytes;
@ -243,20 +264,35 @@ deinterlace (GimpDrawable *drawable)
}
else
{
for (col = 0; col < (x2 - x1) * bytes; col++)
for (col = 0; col < width * bytes; col++)
dest[col] = (upper[col] + lower[col]) / 2;
}
}
gimp_pixel_rgn_set_row (&destPR, dest, x1, row, x2 - x1);
}
if (preview)
{
dest += width * bytes;
}
else
{
gimp_pixel_rgn_set_row (&destPR, dest, x1, row, width);
if ((row % 5) == 0)
gimp_progress_update ((double) row / (double) (y2 - y1));
if ((row % 5) == 0)
gimp_progress_update ((double) row / (double) (height));
}
}
/* update the deinterlaced region */
gimp_drawable_flush (drawable);
gimp_drawable_merge_shadow (drawable->drawable_id, TRUE);
gimp_drawable_update (drawable->drawable_id, x1, y1, x2 - x1, y2 - y1);
if (preview)
{
gimp_drawable_preview_draw_buffer (preview, dest_buffer, width * bytes);
dest = dest_buffer;
}
else
{
/* update the deinterlaced region */
gimp_drawable_flush (drawable);
gimp_drawable_merge_shadow (drawable->drawable_id, TRUE);
gimp_drawable_update (drawable->drawable_id, x1, y1, width, height);
}
g_free (lower);
g_free (upper);
@ -264,41 +300,63 @@ deinterlace (GimpDrawable *drawable)
}
static gboolean
deinterlace_dialog (void)
deinterlace_dialog (GimpDrawable *drawable)
{
GtkWidget *dlg;
GtkWidget *dialog;
GtkWidget *main_vbox;
GtkWidget *preview;
GtkWidget *frame;
GtkWidget *odd;
GtkWidget *even;
gboolean run;
gimp_ui_init ("deinterlace", FALSE);
dlg = gimp_dialog_new (_("Deinterlace"), "deinterlace",
NULL, 0,
gimp_standard_help_func, "plug-in-deinterlace",
dialog = gimp_dialog_new (_("Deinterlace"), "deinterlace",
NULL, 0,
gimp_standard_help_func, "plug-in-deinterlace",
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_OK, GTK_RESPONSE_OK,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_OK, GTK_RESPONSE_OK,
NULL);
NULL);
main_vbox = gtk_vbox_new (FALSE, 12);
gtk_container_set_border_width (GTK_CONTAINER (main_vbox), 12);
gtk_container_add (GTK_CONTAINER (GTK_DIALOG (dialog)->vbox), main_vbox);
gtk_widget_show (main_vbox);
preview = gimp_drawable_preview_new (drawable, &devals.preview);
gtk_box_pack_start_defaults (GTK_BOX (main_vbox), preview);
gtk_widget_show (preview);
g_signal_connect_swapped (preview, "invalidated",
G_CALLBACK (deinterlace),
drawable);
frame = gimp_int_radio_group_new (FALSE, NULL,
G_CALLBACK (gimp_radio_button_update),
&DeinterlaceValue, DeinterlaceValue,
&devals.evenness, devals.evenness,
_("Keep o_dd fields"), ODD_FIELDS, NULL,
_("Keep _even fields"), EVEN_FIELDS, NULL,
_("Keep o_dd fields"), ODD_FIELDS, &odd,
_("Keep _even fields"), EVEN_FIELDS, &even,
NULL);
gtk_container_set_border_width (GTK_CONTAINER (frame), 12);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dlg)->vbox), frame, TRUE, TRUE, 0);
g_signal_connect_swapped (odd, "toggled",
G_CALLBACK (gimp_preview_invalidate),
preview);
g_signal_connect_swapped (even, "toggled",
G_CALLBACK (gimp_preview_invalidate),
preview);
gtk_box_pack_start (GTK_BOX (main_vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
gtk_widget_show (dlg);
gtk_widget_show (dialog);
run = (gimp_dialog_run (GIMP_DIALOG (dlg)) == GTK_RESPONSE_OK);
run = (gimp_dialog_run (GIMP_DIALOG (dialog)) == GTK_RESPONSE_OK);
gtk_widget_destroy (dlg);
gtk_widget_destroy (dialog);
return run;
}