static void
gimp_view_renderer_buffer_render (GimpViewRenderer *renderer,
GtkWidget *widget)
{
gint buffer_width;
gint buffer_height;
gint view_width;
gint view_height;
gboolean scaling_up;
GimpTempBuf *render_buf = NULL;
gimp_viewable_get_size (renderer->viewable, &buffer_width, &buffer_height);
gimp_viewable_calc_preview_size (buffer_width,
buffer_height,
renderer->width,
renderer->height,
TRUE, 1.0, 1.0,
&view_width,
&view_height,
&scaling_up);
if (scaling_up)
{
GimpTempBuf *temp_buf;
temp_buf = gimp_viewable_get_new_preview (renderer->viewable,
renderer->context,
buffer_width, buffer_height);
if (temp_buf)
{
render_buf = gimp_temp_buf_scale (temp_buf, view_width, view_height);
gimp_temp_buf_unref (temp_buf);
}
}
else
{
render_buf = gimp_viewable_get_new_preview (renderer->viewable,
renderer->context,
view_width, view_height);
}
if (render_buf)
{
gimp_view_renderer_render_temp_buf_simple (renderer, render_buf);
gimp_temp_buf_unref (render_buf);
}
else /* no preview available */
{
const gchar *icon_name;
icon_name = gimp_viewable_get_icon_name (renderer->viewable);
gimp_view_renderer_render_icon (renderer, widget, icon_name);
}
}
static GeglBuffer *
gimp_ink_get_paint_buffer (GimpPaintCore *paint_core,
GimpDrawable *drawable,
GimpPaintOptions *paint_options,
const GimpCoords *coords,
gint *paint_buffer_x,
gint *paint_buffer_y)
{
GimpInk *ink = GIMP_INK (paint_core);
gint x, y;
gint width, height;
gint dwidth, dheight;
gint x1, y1, x2, y2;
gimp_blob_bounds (ink->cur_blob, &x, &y, &width, &height);
dwidth = gimp_item_get_width (GIMP_ITEM (drawable));
dheight = gimp_item_get_height (GIMP_ITEM (drawable));
x1 = CLAMP (x / SUBSAMPLE - 1, 0, dwidth);
y1 = CLAMP (y / SUBSAMPLE - 1, 0, dheight);
x2 = CLAMP ((x + width) / SUBSAMPLE + 2, 0, dwidth);
y2 = CLAMP ((y + height) / SUBSAMPLE + 2, 0, dheight);
/* configure the canvas buffer */
if ((x2 - x1) && (y2 - y1))
{
GimpTempBuf *temp_buf;
const Babl *format;
if (gimp_drawable_get_linear (drawable))
format = babl_format ("RGBA float");
else
format = babl_format ("R'G'B'A float");
temp_buf = gimp_temp_buf_new ((x2 - x1), (y2 - y1),
format);
*paint_buffer_x = x1;
*paint_buffer_y = y1;
if (paint_core->paint_buffer)
g_object_unref (paint_core->paint_buffer);
paint_core->paint_buffer = gimp_temp_buf_create_buffer (temp_buf);
gimp_temp_buf_unref (temp_buf);
return paint_core->paint_buffer;
}
return NULL;
}
static void
gimp_pattern_finalize (GObject *object)
{
GimpPattern *pattern = GIMP_PATTERN (object);
if (pattern->mask)
{
gimp_temp_buf_unref (pattern->mask);
pattern->mask = NULL;
}
G_OBJECT_CLASS (parent_class)->finalize (object);
}
void
gimp_undo_refresh_preview (GimpUndo *undo,
GimpContext *context)
{
g_return_if_fail (GIMP_IS_UNDO (undo));
g_return_if_fail (context == NULL || GIMP_IS_CONTEXT (context));
if (undo->preview_idle_id)
return;
if (undo->preview)
{
gimp_temp_buf_unref (undo->preview);
undo->preview = NULL;
gimp_undo_create_preview (undo, context, FALSE);
}
}
static void
gimp_undo_finalize (GObject *object)
{
GimpUndo *undo = GIMP_UNDO (object);
if (undo->preview_idle_id)
{
g_source_remove (undo->preview_idle_id);
undo->preview_idle_id = 0;
}
if (undo->preview)
{
gimp_temp_buf_unref (undo->preview);
undo->preview = NULL;
}
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gimp_brush_generated_dirty (GimpData *data)
{
GimpBrushGenerated *brush = GIMP_BRUSH_GENERATED (data);
GimpBrush *gbrush = GIMP_BRUSH (brush);
if (gbrush->priv->mask)
gimp_temp_buf_unref (gbrush->priv->mask);
gbrush->priv->mask = gimp_brush_generated_calc (brush,
brush->shape,
brush->radius,
brush->spikes,
brush->hardness,
brush->aspect_ratio,
brush->angle,
&gbrush->priv->x_axis,
&gbrush->priv->y_axis);
GIMP_DATA_CLASS (parent_class)->dirty (data);
}
static void
gimp_pattern_clipboard_buffer_changed (Gimp *gimp,
GimpPattern *pattern)
{
if (pattern->mask)
{
gimp_temp_buf_unref (pattern->mask);
pattern->mask = NULL;
}
if (gimp->global_buffer)
{
GimpBuffer *buffer = gimp->global_buffer;
gint width;
gint height;
width = MIN (gimp_buffer_get_width (buffer), 2048);
height = MIN (gimp_buffer_get_height (buffer), 2048);
pattern->mask = gimp_temp_buf_new (width, height,
gimp_buffer_get_format (buffer));
gegl_buffer_get (gimp_buffer_get_buffer (buffer),
GEGL_RECTANGLE (0, 0, width, height), 1.0,
NULL,
gimp_temp_buf_get_data (pattern->mask),
GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE);
}
else
{
pattern->mask = gimp_temp_buf_new (16, 16, babl_format ("R'G'B' u8"));
memset (gimp_temp_buf_get_data (pattern->mask), 255, 16 * 16 * 3);
}
gimp_data_dirty (GIMP_DATA (pattern));
}
static GdkPixbuf *
gimp_buffer_get_new_pixbuf (GimpViewable *viewable,
GimpContext *context,
gint width,
gint height)
{
GimpBuffer *buffer = GIMP_BUFFER (viewable);
GdkPixbuf *pixbuf;
gdouble scale;
pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8,
width, height);
scale = MIN ((gdouble) width / (gdouble) gimp_buffer_get_width (buffer),
(gdouble) height / (gdouble) gimp_buffer_get_height (buffer));
if (buffer->color_profile)
{
GimpColorProfile *srgb_profile;
GimpTempBuf *temp_buf;
GeglBuffer *src_buf;
GeglBuffer *dest_buf;
srgb_profile = gimp_color_profile_new_rgb_srgb ();
temp_buf = gimp_temp_buf_new (width, height,
gimp_buffer_get_format (buffer));
gegl_buffer_get (buffer->buffer,
GEGL_RECTANGLE (0, 0, width, height),
scale,
gimp_temp_buf_get_format (temp_buf),
gimp_temp_buf_get_data (temp_buf),
GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_CLAMP);
src_buf = gimp_temp_buf_create_buffer (temp_buf);
dest_buf = gimp_pixbuf_create_buffer (pixbuf);
gimp_temp_buf_unref (temp_buf);
gimp_gegl_convert_color_profile (src_buf,
GEGL_RECTANGLE (0, 0, width, height),
buffer->color_profile,
dest_buf,
GEGL_RECTANGLE (0, 0, 0, 0),
srgb_profile,
GIMP_COLOR_RENDERING_INTENT_PERCEPTUAL,
TRUE,
NULL);
g_object_unref (src_buf);
g_object_unref (dest_buf);
g_object_unref (srgb_profile);
}
else
{
gegl_buffer_get (buffer->buffer,
GEGL_RECTANGLE (0, 0, width, height),
scale,
gimp_pixbuf_get_format (pixbuf),
gdk_pixbuf_get_pixels (pixbuf),
gdk_pixbuf_get_rowstride (pixbuf),
GEGL_ABYSS_CLAMP);
}
return pixbuf;
}
static void
gimp_brush_clipboard_buffer_changed (Gimp *gimp,
GimpBrush *brush)
{
gint width;
gint height;
if (brush->mask)
{
gimp_temp_buf_unref (brush->mask);
brush->mask = NULL;
}
if (brush->pixmap)
{
gimp_temp_buf_unref (brush->pixmap);
brush->pixmap = NULL;
}
if (gimp->global_buffer)
{
GeglBuffer *buffer = gimp_buffer_get_buffer (gimp->global_buffer);
const Babl *format = gegl_buffer_get_format (buffer);
GeglBuffer *dest_buffer;
width = MIN (gimp_buffer_get_width (gimp->global_buffer), 512);
height = MIN (gimp_buffer_get_height (gimp->global_buffer), 512);
brush->mask = gimp_temp_buf_new (width, height,
babl_format ("Y u8"));
brush->pixmap = gimp_temp_buf_new (width, height,
babl_format ("R'G'B' u8"));
/* copy the alpha channel into the brush's mask */
if (babl_format_has_alpha (format))
{
dest_buffer = gimp_temp_buf_create_buffer (brush->mask);
gegl_buffer_set_format (dest_buffer, babl_format ("A u8"));
gegl_buffer_copy (buffer, NULL, dest_buffer, NULL);
g_object_unref (dest_buffer);
}
else
{
memset (gimp_temp_buf_get_data (brush->mask), 255,
width * height);
}
/* copy the color channels into the brush's pixmap */
dest_buffer = gimp_temp_buf_create_buffer (brush->pixmap);
gegl_buffer_copy (buffer, NULL, dest_buffer, NULL);
g_object_unref (dest_buffer);
}
else
{
width = 17;
height = 17;
brush->mask = gimp_temp_buf_new (width, height, babl_format ("Y u8"));
gimp_temp_buf_data_clear (brush->mask);
}
brush->x_axis.x = width / 2;
brush->x_axis.y = 0;
brush->y_axis.x = 0;
brush->y_axis.y = height / 2;
gimp_data_dirty (GIMP_DATA (brush));
}
GdkPixbuf *
gimp_drawable_get_sub_pixbuf (GimpDrawable *drawable,
gint src_x,
gint src_y,
gint src_width,
gint src_height,
gint dest_width,
gint dest_height)
{
GimpItem *item;
GimpImage *image;
GeglBuffer *buffer;
GdkPixbuf *pixbuf;
gdouble scale;
gint scaled_x;
gint scaled_y;
GimpColorTransform *transform;
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), NULL);
g_return_val_if_fail (src_x >= 0, NULL);
g_return_val_if_fail (src_y >= 0, NULL);
g_return_val_if_fail (src_width > 0, NULL);
g_return_val_if_fail (src_height > 0, NULL);
g_return_val_if_fail (dest_width > 0, NULL);
g_return_val_if_fail (dest_height > 0, NULL);
item = GIMP_ITEM (drawable);
g_return_val_if_fail ((src_x + src_width) <= gimp_item_get_width (item), NULL);
g_return_val_if_fail ((src_y + src_height) <= gimp_item_get_height (item), NULL);
image = gimp_item_get_image (item);
if (! image->gimp->config->layer_previews)
return NULL;
buffer = gimp_drawable_get_buffer (drawable);
pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8,
dest_width, dest_height);
scale = MIN ((gdouble) dest_width / (gdouble) src_width,
(gdouble) dest_height / (gdouble) src_height);
scaled_x = RINT ((gdouble) src_x * scale);
scaled_y = RINT ((gdouble) src_y * scale);
transform = gimp_image_get_color_transform_to_srgb_u8 (image);
if (transform)
{
GimpTempBuf *temp_buf;
GeglBuffer *src_buf;
GeglBuffer *dest_buf;
temp_buf = gimp_temp_buf_new (dest_width, dest_height,
gimp_drawable_get_format (drawable));
gegl_buffer_get (buffer,
GEGL_RECTANGLE (scaled_x, scaled_y,
dest_width, dest_height),
scale,
gimp_temp_buf_get_format (temp_buf),
gimp_temp_buf_get_data (temp_buf),
GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_CLAMP);
src_buf = gimp_temp_buf_create_buffer (temp_buf);
dest_buf = gimp_pixbuf_create_buffer (pixbuf);
gimp_temp_buf_unref (temp_buf);
gimp_color_transform_process_buffer (transform,
src_buf,
GEGL_RECTANGLE (0, 0,
dest_width, dest_height),
dest_buf,
GEGL_RECTANGLE (0, 0, 0, 0));
g_object_unref (src_buf);
g_object_unref (dest_buf);
}
else
{
gegl_buffer_get (buffer,
GEGL_RECTANGLE (scaled_x, scaled_y,
dest_width, dest_height),
scale,
gimp_pixbuf_get_format (pixbuf),
gdk_pixbuf_get_pixels (pixbuf),
gdk_pixbuf_get_rowstride (pixbuf),
GEGL_ABYSS_CLAMP);
}
return pixbuf;
}
static void
gimp_convolve_motion (GimpPaintCore *paint_core,
GimpDrawable *drawable,
GimpPaintOptions *paint_options,
const GimpCoords *coords)
{
GimpConvolve *convolve = GIMP_CONVOLVE (paint_core);
GimpBrushCore *brush_core = GIMP_BRUSH_CORE (paint_core);
GimpConvolveOptions *options = GIMP_CONVOLVE_OPTIONS (paint_options);
GimpContext *context = GIMP_CONTEXT (paint_options);
GimpDynamics *dynamics = GIMP_BRUSH_CORE (paint_core)->dynamics;
GimpImage *image = gimp_item_get_image (GIMP_ITEM (drawable));
GeglBuffer *paint_buffer;
gint paint_buffer_x;
gint paint_buffer_y;
GimpTempBuf *temp_buf;
GeglBuffer *convolve_buffer;
gdouble fade_point;
gdouble opacity;
gdouble rate;
fade_point = gimp_paint_options_get_fade (paint_options, image,
paint_core->pixel_dist);
opacity = gimp_dynamics_get_linear_value (dynamics,
GIMP_DYNAMICS_OUTPUT_OPACITY,
coords,
paint_options,
fade_point);
if (opacity == 0.0)
return;
paint_buffer = gimp_paint_core_get_paint_buffer (paint_core, drawable,
paint_options, coords,
&paint_buffer_x,
&paint_buffer_y);
if (! paint_buffer)
return;
rate = (options->rate *
gimp_dynamics_get_linear_value (dynamics,
GIMP_DYNAMICS_OUTPUT_RATE,
coords,
paint_options,
fade_point));
gimp_convolve_calculate_matrix (convolve, options->type,
gimp_brush_get_width (brush_core->brush) / 2,
gimp_brush_get_height (brush_core->brush) / 2,
rate);
/* need a linear buffer for gimp_gegl_convolve() */
temp_buf = gimp_temp_buf_new (gegl_buffer_get_width (paint_buffer),
gegl_buffer_get_height (paint_buffer),
gegl_buffer_get_format (paint_buffer));
convolve_buffer = gimp_temp_buf_create_buffer (temp_buf);
gimp_temp_buf_unref (temp_buf);
gegl_buffer_copy (gimp_drawable_get_buffer (drawable),
GEGL_RECTANGLE (paint_buffer_x,
paint_buffer_y,
gegl_buffer_get_width (paint_buffer),
gegl_buffer_get_height (paint_buffer)),
convolve_buffer,
GEGL_RECTANGLE (0, 0, 0, 0));
gimp_gegl_convolve (convolve_buffer,
GEGL_RECTANGLE (0, 0,
gegl_buffer_get_width (convolve_buffer),
gegl_buffer_get_height (convolve_buffer)),
paint_buffer,
GEGL_RECTANGLE (0, 0,
gegl_buffer_get_width (paint_buffer),
gegl_buffer_get_height (paint_buffer)),
convolve->matrix, 3, convolve->matrix_divisor,
GIMP_NORMAL_CONVOL, TRUE);
g_object_unref (convolve_buffer);
gimp_brush_core_replace_canvas (brush_core, drawable,
coords,
MIN (opacity, GIMP_OPACITY_OPAQUE),
gimp_context_get_opacity (context),
gimp_paint_options_get_brush_mode (paint_options),
1.0,
GIMP_PAINT_INCREMENTAL);
}
GdkPixbuf *
gimp_image_get_new_pixbuf (GimpViewable *viewable,
GimpContext *context,
gint width,
gint height)
{
GimpImage *image = GIMP_IMAGE (viewable);
GdkPixbuf *pixbuf;
gdouble scale_x;
gdouble scale_y;
GimpColorTransform *transform;
scale_x = (gdouble) width / (gdouble) gimp_image_get_width (image);
scale_y = (gdouble) height / (gdouble) gimp_image_get_height (image);
pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8,
width, height);
transform = gimp_image_get_color_transform_to_srgb_u8 (image);
if (transform)
{
GimpTempBuf *temp_buf;
GeglBuffer *src_buf;
GeglBuffer *dest_buf;
temp_buf = gimp_temp_buf_new (width, height,
gimp_pickable_get_format (GIMP_PICKABLE (image)));
gegl_buffer_get (gimp_pickable_get_buffer (GIMP_PICKABLE (image)),
GEGL_RECTANGLE (0, 0, width, height),
MIN (scale_x, scale_y),
gimp_temp_buf_get_format (temp_buf),
gimp_temp_buf_get_data (temp_buf),
GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_CLAMP);
src_buf = gimp_temp_buf_create_buffer (temp_buf);
dest_buf = gimp_pixbuf_create_buffer (pixbuf);
gimp_temp_buf_unref (temp_buf);
gimp_color_transform_process_buffer (transform,
src_buf,
GEGL_RECTANGLE (0, 0,
width, height),
dest_buf,
GEGL_RECTANGLE (0, 0, 0, 0));
g_object_unref (src_buf);
g_object_unref (dest_buf);
}
else
{
gegl_buffer_get (gimp_pickable_get_buffer (GIMP_PICKABLE (image)),
GEGL_RECTANGLE (0, 0, width, height),
MIN (scale_x, scale_y),
gimp_pixbuf_get_format (pixbuf),
gdk_pixbuf_get_pixels (pixbuf),
gdk_pixbuf_get_rowstride (pixbuf),
GEGL_ABYSS_CLAMP);
}
return pixbuf;
}
static void
gimp_view_renderer_image_render (GimpViewRenderer *renderer,
GtkWidget *widget)
{
GimpViewRendererImage *rendererimage = GIMP_VIEW_RENDERER_IMAGE (renderer);
GimpImage *image = GIMP_IMAGE (renderer->viewable);
const gchar *icon_name;
/* The conditions checked here are mostly a hack to hide the fact that
* we are creating the channel preview from the image preview and turning
* off visibility of a channel has the side-effect of painting the channel
* preview all black. See bug #459518 for details.
*/
if (rendererimage->channel == -1 ||
(gimp_image_get_component_visible (image, rendererimage->channel) &&
gimp_image_get_component_visible (image, GIMP_ALPHA_CHANNEL)))
{
gint view_width;
gint view_height;
gdouble xres;
gdouble yres;
gboolean scaling_up;
GimpTempBuf *render_buf = NULL;
gimp_image_get_resolution (image, &xres, &yres);
gimp_viewable_calc_preview_size (gimp_image_get_width (image),
gimp_image_get_height (image),
renderer->width,
renderer->height,
renderer->dot_for_dot,
xres,
yres,
&view_width,
&view_height,
&scaling_up);
if (scaling_up)
{
GimpTempBuf *temp_buf;
temp_buf = gimp_viewable_get_new_preview (renderer->viewable,
renderer->context,
gimp_image_get_width (image),
gimp_image_get_height (image));
if (temp_buf)
{
render_buf = gimp_temp_buf_scale (temp_buf,
view_width, view_height);
gimp_temp_buf_unref (temp_buf);
}
}
else
{
render_buf = gimp_viewable_get_new_preview (renderer->viewable,
renderer->context,
view_width,
view_height);
}
if (render_buf)
{
gint render_buf_x = 0;
gint render_buf_y = 0;
gint component_index = -1;
/* xresolution != yresolution */
if (view_width > renderer->width || view_height > renderer->height)
{
GimpTempBuf *temp_buf;
temp_buf = gimp_temp_buf_scale (render_buf,
renderer->width, renderer->height);
gimp_temp_buf_unref (render_buf);
render_buf = temp_buf;
}
if (view_width < renderer->width)
render_buf_x = (renderer->width - view_width) / 2;
if (view_height < renderer->height)
render_buf_y = (renderer->height - view_height) / 2;
if (rendererimage->channel != -1)
component_index =
gimp_image_get_component_index (image, rendererimage->channel);
gimp_view_renderer_render_temp_buf (renderer, widget, render_buf,
render_buf_x, render_buf_y,
component_index,
GIMP_VIEW_BG_CHECKS,
GIMP_VIEW_BG_WHITE);
gimp_temp_buf_unref (render_buf);
return;
}
}
switch (rendererimage->channel)
{
case GIMP_RED_CHANNEL: icon_name = GIMP_STOCK_CHANNEL_RED; break;
case GIMP_GREEN_CHANNEL: icon_name = GIMP_STOCK_CHANNEL_GREEN; break;
case GIMP_BLUE_CHANNEL: icon_name = GIMP_STOCK_CHANNEL_BLUE; break;
case GIMP_GRAY_CHANNEL: icon_name = GIMP_STOCK_CHANNEL_GRAY; break;
case GIMP_INDEXED_CHANNEL: icon_name = GIMP_STOCK_CHANNEL_INDEXED; break;
case GIMP_ALPHA_CHANNEL: icon_name = GIMP_STOCK_CHANNEL_ALPHA; break;
default:
icon_name = gimp_viewable_get_icon_name (renderer->viewable);
break;
}
gimp_view_renderer_render_icon (renderer, widget, icon_name);
}
