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app: port GimpInk blob rendering to GeglBufferIterator

This commit is contained in:
Michael Natterer 2012-04-01 23:23:07 +02:00
parent c5c555c834
commit c0fdfbd226
1 changed files with 23 additions and 21 deletions
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44
app/paint/gimpink.c
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@ -79,8 +79,9 @@ static GimpBlob * ink_pen_ellipse (GimpInkOptions *options,
gdouble ytilt,
gdouble velocity);
static void render_blob (GimpBlob *blob,
PixelRegion *dest);
static void render_blob (GeglBuffer *buffer,
GeglRectangle *rect,
GimpBlob *blob);
G_DEFINE_TYPE (GimpInk, gimp_ink, GIMP_TYPE_PAINT_CORE)
@ -326,15 +327,12 @@ gimp_ink_motion (GimpPaintCore *paint_core,
g_object_unref (color);
/* draw the blob directly to the canvas_buffer */
pixel_region_init (&blob_maskPR,
gimp_gegl_buffer_get_tiles (paint_core->canvas_buffer),
paint_core->paint_buffer_x,
paint_core->paint_buffer_y,
gegl_buffer_get_width (paint_core->paint_buffer),
gegl_buffer_get_height (paint_core->paint_buffer),
TRUE);
render_blob (blob_to_render, &blob_maskPR);
render_blob (paint_core->canvas_buffer,
GIMP_GEGL_RECT (paint_core->paint_buffer_x,
paint_core->paint_buffer_y,
gegl_buffer_get_width (paint_core->paint_buffer),
gegl_buffer_get_height (paint_core->paint_buffer)),
blob_to_render);
/* draw the paint_area using the just rendered canvas_buffer as mask */
pixel_region_init (&blob_maskPR,
@ -650,22 +648,26 @@ render_blob_line (GimpBlob *blob,
}
static void
render_blob (GimpBlob *blob,
PixelRegion *dest)
render_blob (GeglBuffer *buffer,
GeglRectangle *rect,
GimpBlob *blob)
{
gpointer pr;
GeglBufferIterator *iter;
GeglRectangle *roi;
for (pr = pixel_regions_register (1, dest);
pr != NULL;
pr = pixel_regions_process (pr))
iter = gegl_buffer_iterator_new (buffer, rect, 0, babl_format ("Y u8"),
GEGL_BUFFER_READWRITE, GEGL_ABYSS_NONE);
roi = &iter->roi[0];
while (gegl_buffer_iterator_next (iter))
{
guchar *d = dest->data;
gint h = dest->h;
guchar *d = iter->data[0];
gint h = roi->height;
gint y;
for (y = 0; y < h; y++, d += dest->rowstride)
for (y = 0; y < h; y++, d += roi->width * 1)
{
render_blob_line (blob, d, dest->x, dest->y + y, dest->w);
render_blob_line (blob, d, roi->x, roi->y + y, roi->width);
}
}
}