static TempBuf *
gimp_ink_get_paint_area (GimpPaintCore *paint_core,
GimpDrawable *drawable,
GimpPaintOptions *paint_options,
const GimpCoords *coords)
{
GimpInk *ink = GIMP_INK (paint_core);
gint x, y;
gint width, height;
gint dwidth, dheight;
gint x1, y1, x2, y2;
gint bytes;
bytes = gimp_drawable_bytes_with_alpha (drawable);
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))
paint_core->canvas_buf = temp_buf_resize (paint_core->canvas_buf, bytes,
x1, y1,
(x2 - x1), (y2 - y1));
else
return NULL;
return paint_core->canvas_buf;
}
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;
}
