static GimpTempBuf *
gimp_buffer_get_new_preview (GimpViewable *viewable,
GimpContext *context,
gint width,
gint height)
{
GimpBuffer *buffer = GIMP_BUFFER (viewable);
const Babl *format = gimp_buffer_get_format (buffer);
GimpTempBuf *preview;
if (babl_format_is_palette (format))
format = gimp_babl_format (GIMP_RGB, GIMP_PRECISION_U8_GAMMA,
babl_format_has_alpha (format));
else
format = gimp_babl_format (gimp_babl_format_get_base_type (format),
gimp_babl_precision (GIMP_COMPONENT_TYPE_U8,
gimp_babl_format_get_linear (format)),
babl_format_has_alpha (format));
preview = gimp_temp_buf_new (width, height, format);
gegl_buffer_get (buffer->buffer, GEGL_RECTANGLE (0, 0, width, height),
MIN ((gdouble) width / (gdouble) gimp_buffer_get_width (buffer),
(gdouble) height / (gdouble) gimp_buffer_get_height (buffer)),
format,
gimp_temp_buf_get_data (preview),
GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE);
return preview;
}
static void
prepare (GeglOperation *operation)
{
GeglOperationAreaFilter *area = GEGL_OPERATION_AREA_FILTER (operation);
GeglProperties *o = GEGL_PROPERTIES (operation);
const Babl *in_format = gegl_operation_get_source_format (operation, "input");
const Babl *format = babl_format ("RGB float");
area->left =
area->right =
area->top =
area->bottom = o->radius;
o->user_data = g_renew (gint, o->user_data, o->radius + 1);
init_neighborhood_outline (o->neighborhood, o->radius, o->user_data);
if (in_format)
{
if (babl_format_has_alpha (in_format))
format = babl_format ("RGBA float");
}
gegl_operation_set_format (operation, "input", format);
gegl_operation_set_format (operation, "output", format);
}
static void
prepare (GeglOperation *operation)
{
const Babl *src_format = gegl_operation_get_source_format (operation, "input");
const char *format = "RGB float";
if (src_format)
{
const Babl *model = babl_format_get_model (src_format);
if (model == babl_model ("RGB"))
format = "RGB float";
else if (model == babl_model ("RGBA"))
format = "RGBA float";
else if (model == babl_model ("R'G'B'"))
format = "R'G'B' float";
else if (model == babl_model ("R'G'B'A"))
format = "R'G'B'A float";
else if (babl_format_has_alpha (src_format))
format = "RGBA float";
}
gegl_operation_set_format (operation, "input", babl_format (format));
gegl_operation_set_format (operation, "output", babl_format (format));
}
GimpTempBuf *
gimp_image_get_new_preview (GimpViewable *viewable,
GimpContext *context,
gint width,
gint height)
{
GimpImage *image = GIMP_IMAGE (viewable);
const Babl *format;
gboolean linear;
GimpTempBuf *buf;
gdouble scale_x;
gdouble scale_y;
scale_x = (gdouble) width / (gdouble) gimp_image_get_width (image);
scale_y = (gdouble) height / (gdouble) gimp_image_get_height (image);
format = gimp_projectable_get_format (GIMP_PROJECTABLE (image));
linear = gimp_babl_format_get_linear (format);
format = gimp_babl_format (gimp_babl_format_get_base_type (format),
gimp_babl_precision (GIMP_COMPONENT_TYPE_U8,
linear),
babl_format_has_alpha (format));
buf = gimp_temp_buf_new (width, height, format);
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 (buf),
gimp_temp_buf_get_data (buf),
GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_CLAMP);
return buf;
}
GimpTransformResize
gimp_drawable_transform_get_effective_clip (GimpDrawable *drawable,
GeglBuffer *orig_buffer,
GimpTransformResize clip_result)
{
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), clip_result);
g_return_val_if_fail (gimp_item_is_attached (GIMP_ITEM (drawable)),
clip_result);
g_return_val_if_fail (orig_buffer == NULL || GEGL_IS_BUFFER (orig_buffer),
clip_result);
/* Always clip unfloated buffers since they must keep their size */
if (GIMP_IS_CHANNEL (drawable))
{
if (orig_buffer)
{
if (! babl_format_has_alpha (gegl_buffer_get_format (orig_buffer)))
clip_result = GIMP_TRANSFORM_RESIZE_CLIP;
}
else
{
GimpImage *image = gimp_item_get_image (GIMP_ITEM (drawable));
if (gimp_channel_is_empty (gimp_image_get_mask (image)))
clip_result = GIMP_TRANSFORM_RESIZE_CLIP;
}
}
return clip_result;
}
const Babl *
gimp_babl_compat_u8_format (const Babl *format)
{
g_return_val_if_fail (format != NULL, NULL);
/* indexed images only exist in u8, return the same format */
if (babl_format_is_palette (format))
return format;
return gimp_babl_format (gimp_babl_format_get_base_type (format),
GIMP_PRECISION_U8,
babl_format_has_alpha (format));
}
static gboolean
process (GeglOperation *operation,
GeglBuffer *input,
const GeglRectangle *result,
gint level)
{
GeglChantO *o = GEGL_CHANT_PROPERTIES (operation);
if (o->pixbuf)
{
GdkPixbuf **pixbuf = o->pixbuf;
const Babl *babl;
const Babl *format;
guchar *temp;
GeglRectangle *rect = gegl_operation_source_get_bounding_box (operation, "input");
gchar *name;
gboolean has_alpha;
gint bps;
g_object_get (input, "format", &format, NULL);
has_alpha = babl_format_has_alpha (format);
/* pixbuf from data only support 8bit bps */
bps = 8;
name = g_strdup_printf ("R'G'B'%s u%i",
has_alpha ? "A" : "",
bps);
babl = babl_format (name);
temp = g_malloc (rect->width * rect->height * bps);
gegl_buffer_get (input, rect, 1.0, babl, temp, GEGL_AUTO_ROWSTRIDE,
GEGL_ABYSS_NONE);
if (temp) {
*pixbuf = gdk_pixbuf_new_from_data (temp,
GDK_COLORSPACE_RGB,
has_alpha,
bps,
rect->width, rect->height,
rect->width * (has_alpha ? 4 : 3) * bps/8,
(GdkPixbufDestroyNotify) g_free, NULL);
}
else {
g_warning (G_STRLOC ": inexistant data, unable to create GdkPixbuf.");
}
g_free (name);
}
return TRUE;
}
static gboolean
gimp_drawable_edit_can_fill_direct (GimpDrawable *drawable,
GimpFillOptions *options)
{
GimpImage *image;
GimpContext *context;
gdouble opacity;
GimpComponentMask affect;
GimpLayerMode mode;
GimpLayerCompositeMode composite_mode;
GimpLayerCompositeRegion composite_region;
image = gimp_item_get_image (GIMP_ITEM (drawable));
context = GIMP_CONTEXT (options);
opacity = gimp_context_get_opacity (context);
affect = gimp_drawable_get_active_mask (drawable);
mode = gimp_context_get_paint_mode (context);
composite_mode = gimp_layer_mode_get_paint_composite_mode (mode);
composite_region = gimp_layer_mode_get_included_region (mode, composite_mode);
if (gimp_channel_is_empty (gimp_image_get_mask (image)) &&
opacity == GIMP_OPACITY_OPAQUE &&
affect == GIMP_COMPONENT_MASK_ALL &&
gimp_layer_mode_is_trivial (mode) &&
(! gimp_layer_mode_is_subtractive (mode) ^
! (composite_region & GIMP_LAYER_COMPOSITE_REGION_SOURCE)))
{
switch (gimp_fill_options_get_style (options))
{
case GIMP_FILL_STYLE_SOLID:
return TRUE;
case GIMP_FILL_STYLE_PATTERN:
{
GimpPattern *pattern;
GimpTempBuf *mask;
const Babl *format;
pattern = gimp_context_get_pattern (context);
mask = gimp_pattern_get_mask (pattern);
format = gimp_temp_buf_get_format (mask);
return ! babl_format_has_alpha (format);
}
}
}
return FALSE;
}
static void prepare (GeglOperation *operation)
{
GeglOperationAreaFilter *area = GEGL_OPERATION_AREA_FILTER (operation);
//GeglChantO *o = GEGL_CHANT_PROPERTIES (operation);
const Babl *source_format = gegl_operation_get_source_format (operation, "input");
area->left = area->right = area->top = area->bottom = SOBEL_RADIUS;
gegl_operation_set_format (operation, "input", babl_format ("RGBA float"));
if (source_format && !babl_format_has_alpha (source_format))
gegl_operation_set_format (operation, "output", babl_format ("RGB float"));
else
gegl_operation_set_format (operation, "output", babl_format ("RGBA float"));
}
static void prepare (GeglOperation *operation)
{
GeglProperties *o = GEGL_PROPERTIES (operation);
const Babl *format;
const Babl *input_format;
const Babl *input_model;
const Babl *lch_model;
input_format = gegl_operation_get_source_format (operation, "input");
if (input_format == NULL)
return;
input_model = babl_format_get_model (input_format);
if (babl_format_has_alpha (input_format))
{
lch_model = babl_model ("CIE LCH(ab) alpha");
if (input_model == lch_model)
{
format = babl_format ("CIE LCH(ab) alpha float");
o->user_data = process_lch_alpha;
}
else
{
format = babl_format ("CIE Lab alpha float");
o->user_data = process_lab_alpha;
}
}
else
{
lch_model = babl_model ("CIE LCH(ab)");
if (input_model == lch_model)
{
format = babl_format ("CIE LCH(ab) float");
o->user_data = process_lch;
}
else
{
format = babl_format ("CIE Lab float");
o->user_data = process_lab;
}
}
gegl_operation_set_format (operation, "input", format);
gegl_operation_set_format (operation, "output", format);
}
GimpImageType
gimp_babl_format_get_image_type (const Babl *format)
{
const gchar *name;
g_return_val_if_fail (format != NULL, -1);
name = babl_get_name (babl_format_get_model (format));
if (! strcmp (name, "Y") ||
! strcmp (name, "Y'") ||
! strcmp (name, "Y~"))
{
return GIMP_GRAY_IMAGE;
}
else if (! strcmp (name, "YA") ||
! strcmp (name, "Y'A") ||
! strcmp (name, "Y~A"))
{
return GIMP_GRAYA_IMAGE;
}
else if (! strcmp (name, "RGB") ||
! strcmp (name, "R'G'B'") ||
! strcmp (name, "R~G~B~"))
{
return GIMP_RGB_IMAGE;
}
else if (! strcmp (name, "RGBA") ||
! strcmp (name, "R'G'B'A") ||
! strcmp (name, "R~G~B~A"))
{
return GIMP_RGBA_IMAGE;
}
else if (babl_format_is_palette (format))
{
if (babl_format_has_alpha (format))
return GIMP_INDEXEDA_IMAGE;
else
return GIMP_INDEXED_IMAGE;
}
g_return_val_if_reached (-1);
}
static const Babl *
choose_format (GeglBuffer *buffer,
GimpSelectCriterion select_criterion,
gint *n_components,
gboolean *has_alpha)
{
const Babl *format = gegl_buffer_get_format (buffer);
*has_alpha = babl_format_has_alpha (format);
switch (select_criterion)
{
case GIMP_SELECT_CRITERION_COMPOSITE:
if (babl_format_is_palette (format))
format = babl_format ("R'G'B'A float");
else
format = gimp_babl_format (gimp_babl_format_get_base_type (format),
GIMP_PRECISION_FLOAT_GAMMA,
*has_alpha);
break;
case GIMP_SELECT_CRITERION_R:
case GIMP_SELECT_CRITERION_G:
case GIMP_SELECT_CRITERION_B:
case GIMP_SELECT_CRITERION_A:
format = babl_format ("R'G'B'A float");
break;
case GIMP_SELECT_CRITERION_H:
case GIMP_SELECT_CRITERION_S:
case GIMP_SELECT_CRITERION_V:
format = babl_format ("HSVA float");
break;
default:
g_return_val_if_reached (NULL);
break;
}
*n_components = babl_format_get_n_components (format);
return format;
}
static gboolean
process (GeglOperation *operation,
GeglBuffer *input,
GeglBuffer *output,
const GeglRectangle *result,
gint level)
{
GeglChantO *o = GEGL_CHANT_PROPERTIES (operation);
GeglRectangle compute;
gboolean has_alpha;
compute = gegl_operation_get_required_for_output (operation, "input", result);
has_alpha = babl_format_has_alpha (gegl_operation_get_format (operation, "output"));
if (gegl_operation_use_opencl (operation))
if (cl_process (operation, input, output, result, has_alpha))
return TRUE;
edge_sobel (input, &compute, output, result, o->horizontal, o->vertical, o->keep_signal, has_alpha);
return TRUE;
}
static void
prepare (GeglOperation *operation)
{
const Babl *input_format = gegl_operation_get_source_format (operation, "input");
const Babl *format;
GeglOperationAreaFilter *op_area = GEGL_OPERATION_AREA_FILTER (operation);
if (input_format == NULL || babl_format_has_alpha (input_format))
format = babl_format ("R'G'B'A float");
else
format = babl_format ("R'G'B' float");
gegl_operation_set_format (operation, "input", format);
gegl_operation_set_format (operation, "output", format);
op_area->left =
op_area->right =
op_area->top =
op_area->bottom = 1;
}
static void prepare (GeglOperation *operation)
{
const Babl *input_format = gegl_operation_get_source_format (operation, "input");
GeglProperties *o = GEGL_PROPERTIES (operation);
CmParamsType *mix;
const Babl *format;
if (o->user_data == NULL)
o->user_data = g_slice_new0 (CmParamsType);
mix = (CmParamsType*) o->user_data;
mix->preserve_luminosity = o->preserve_luminosity;
mix->red.red_gain = o->rr_gain;
mix->red.green_gain = o->rg_gain;
mix->red.blue_gain = o->rb_gain;
mix->green.red_gain = o->gr_gain;
mix->green.green_gain = o->gg_gain;
mix->green.blue_gain = o->gb_gain;
mix->blue.red_gain = o->br_gain;
mix->blue.green_gain = o->bg_gain;
mix->blue.blue_gain = o->bb_gain;
if (input_format == NULL || babl_format_has_alpha (input_format))
{
mix->has_alpha = TRUE;
format = babl_format ("R'G'B'A float");
}
else
{
mix->has_alpha = FALSE;
format = babl_format ("R'G'B' float");
}
gegl_operation_set_format (operation, "input", format);
gegl_operation_set_format (operation, "output", format);
}
GimpImageType
gimp_babl_format_get_image_type (const Babl *format)
{
const Babl *model;
g_return_val_if_fail (format != NULL, -1);
model = babl_format_get_model (format);
if (model == babl_model ("Y") ||
model == babl_model ("Y'"))
{
return GIMP_GRAY_IMAGE;
}
else if (model == babl_model ("YA") ||
model == babl_model ("Y'A"))
{
return GIMP_GRAYA_IMAGE;
}
else if (model == babl_model ("RGB") ||
model == babl_model ("R'G'B'"))
{
return GIMP_RGB_IMAGE;
}
else if (model == babl_model ("RGBA") ||
model == babl_model ("R'G'B'A"))
{
return GIMP_RGBA_IMAGE;
}
else if (babl_format_is_palette (format))
{
if (babl_format_has_alpha (format))
return GIMP_INDEXEDA_IMAGE;
else
return GIMP_INDEXED_IMAGE;
}
g_return_val_if_reached (-1);
}
static void
prepare (GeglOperation *operation)
{
GeglOperationAreaFilter *area = GEGL_OPERATION_AREA_FILTER (operation);
GeglProperties *o = GEGL_PROPERTIES (operation);
const Babl *in_format = gegl_operation_get_source_format (operation, "input");
const Babl *format = babl_format ("RGB float");;
area->left =
area->right =
area->top =
area->bottom = o->radius;
if (in_format)
{
if (babl_format_has_alpha (in_format))
format = babl_format ("RGBA float");
}
gegl_operation_set_format (operation, "input", format);
gegl_operation_set_format (operation, "output", format);
}
static void
prepare (GeglOperation *operation)
{
GeglOperationAreaFilter *area = GEGL_OPERATION_AREA_FILTER (operation);
const Babl *input_f = gegl_operation_get_source_format (operation, "input");
const Babl *format = babl_format ("R'G'B' float");
area->left =
area->right =
area->top =
area->bottom = 1;
if (input_f)
{
if (babl_format_has_alpha (input_f))
format = babl_format ("R'G'B'A float");
}
gegl_operation_set_format (operation, "input", format);
gegl_operation_set_format (operation, "output", format);
}
const gchar *
gimp_babl_get_description (const Babl *babl)
{
const gchar *description;
g_return_val_if_fail (babl != NULL, NULL);
if (G_UNLIKELY (! babl_description_hash))
{
gint i;
babl_description_hash = g_hash_table_new (g_str_hash,
g_str_equal);
for (i = 0; i < G_N_ELEMENTS (babl_descriptions); i++)
g_hash_table_insert (babl_description_hash,
(gpointer) babl_descriptions[i].name,
gettext (babl_descriptions[i].description));
}
if (babl_format_is_palette (babl))
{
if (babl_format_has_alpha (babl))
return _("Indexed-alpha");
else
return _("Indexed");
}
description = g_hash_table_lookup (babl_description_hash,
babl_get_name (babl));
if (description)
return description;
return g_strconcat ("ERROR: unknown Babl format ",
babl_get_name (babl), NULL);
}
GimpDrawable *
gimp_drawable_transform_affine (GimpDrawable *drawable,
GimpContext *context,
const GimpMatrix3 *matrix,
GimpTransformDirection direction,
GimpInterpolationType interpolation_type,
gint recursion_level,
GimpTransformResize clip_result,
GimpProgress *progress)
{
GimpImage *image;
GeglBuffer *orig_buffer;
gint orig_offset_x;
gint orig_offset_y;
gboolean new_layer;
GimpDrawable *result = NULL;
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), NULL);
g_return_val_if_fail (gimp_item_is_attached (GIMP_ITEM (drawable)), NULL);
g_return_val_if_fail (GIMP_IS_CONTEXT (context), NULL);
g_return_val_if_fail (matrix != NULL, NULL);
g_return_val_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress), NULL);
image = gimp_item_get_image (GIMP_ITEM (drawable));
/* Start a transform undo group */
gimp_image_undo_group_start (image,
GIMP_UNDO_GROUP_TRANSFORM,
C_("undo-type", "Transform"));
/* Cut/Copy from the specified drawable */
orig_buffer = gimp_drawable_transform_cut (drawable, context,
&orig_offset_x, &orig_offset_y,
&new_layer);
if (orig_buffer)
{
GeglBuffer *new_buffer;
gint new_offset_x;
gint new_offset_y;
/* always clip unfloated buffers so they keep their size */
if (GIMP_IS_CHANNEL (drawable) &&
! babl_format_has_alpha (gegl_buffer_get_format (orig_buffer)))
clip_result = GIMP_TRANSFORM_RESIZE_CLIP;
/* also transform the mask if we are transforming an entire layer */
if (GIMP_IS_LAYER (drawable) &&
gimp_layer_get_mask (GIMP_LAYER (drawable)) &&
gimp_channel_is_empty (gimp_image_get_mask (image)))
{
GimpLayerMask *mask = gimp_layer_get_mask (GIMP_LAYER (drawable));
gimp_item_transform (GIMP_ITEM (mask), context,
matrix,
direction,
interpolation_type,
recursion_level,
clip_result,
progress);
}
/* transform the buffer */
new_buffer = gimp_drawable_transform_buffer_affine (drawable, context,
orig_buffer,
orig_offset_x,
orig_offset_y,
matrix,
direction,
interpolation_type,
recursion_level,
clip_result,
&new_offset_x,
&new_offset_y,
progress);
/* Free the cut/copied buffer */
g_object_unref (orig_buffer);
if (new_buffer)
{
result = gimp_drawable_transform_paste (drawable, new_buffer,
new_offset_x, new_offset_y,
new_layer);
g_object_unref (new_buffer);
}
}
/* push the undo group end */
gimp_image_undo_group_end (image);
return result;
}
static gboolean
process (GeglOperation *operation,
GeglBuffer *input,
const GeglRectangle *result,
gint level)
{
GeglProperties *o = GEGL_PROPERTIES (operation);
const Babl *input_format;
const Babl *data_format;
gint bps;
gint row_stride;
gint n_components;
guchar *data;
CoglPixelFormat cogl_pixel_format;
g_object_get (input, "format", &input_format, NULL);
/* cogl doesnt support anything more than 8bit bps */
bps = 8;
n_components = babl_format_get_n_components (input_format);
switch (n_components)
{
case 1:
data_format = babl_format ("Y'");
cogl_pixel_format = COGL_PIXEL_FORMAT_G_8;
break;
default:
if (babl_format_has_alpha (input_format)) {
data_format = babl_format_new (babl_model ("R'G'B'A"),
babl_type ("u8"),
babl_component ("B'"),
babl_component ("G'"),
babl_component ("R'"),
babl_component ("A"),
NULL);
cogl_pixel_format = COGL_PIXEL_FORMAT_BGRA_8888;
n_components = 4;
}
else {
data_format = babl_format_new (babl_model ("R'G'B'"),
babl_type ("u8"),
babl_component ("B'"),
babl_component ("G'"),
babl_component ("R'"),
NULL);
cogl_pixel_format = COGL_PIXEL_FORMAT_BGR_888;
n_components = 3;
}
break;
}
row_stride = result->width * n_components * bps/8;
data = g_malloc (result->height * row_stride);
gegl_buffer_get (input,
result, /* rect */
1.0, /* scale */
data_format,
data,
GEGL_AUTO_ROWSTRIDE,
GEGL_ABYSS_NONE);
if (data)
{
if (o->texture == NULL)
{
CoglTextureFlags flags = COGL_TEXTURE_NONE;
if (result->width >= 512 && result->height >= 512) {
flags |= COGL_TEXTURE_NO_ATLAS;
}
o->texture = cogl_texture_new_from_data (result->width,
result->height,
flags,
cogl_pixel_format,
COGL_PIXEL_FORMAT_ANY,
row_stride,
data);
}
else
{
gboolean success;
success = cogl_texture_set_region (COGL_TEXTURE (o->texture),
0, 0,
result->x, result->y,
result->width, result->height,
result->width, result->height,
cogl_pixel_format,
row_stride,
data);
if (!success)
{
cogl_object_unref (o->texture);
o->texture = NULL;
}
}
}
else
{
g_warning (G_STRLOC ": inexistant data, unable to create CoglTexture.");
}
return TRUE;
}
static gboolean
process (GeglOperation *operation,
void *in_buf,
void *out_buf,
glong n_pixels,
const GeglRectangle *roi,
gint level)
{
GeglProperties *o = GEGL_PROPERTIES (operation);
const Babl *format = gegl_operation_get_format (operation, "input");
gboolean has_alpha = babl_format_has_alpha (format);
gint n_components = has_alpha ? 4 : 3;
gfloat *input = in_buf;
gfloat *output = out_buf;
if (o->clip_low && o->clip_high)
{
while (n_pixels--)
{
output[0] = CLAMP (input[0], o->low_limit, o->high_limit);
output[1] = CLAMP (input[1], o->low_limit, o->high_limit);
output[2] = CLAMP (input[2], o->low_limit, o->high_limit);
if (has_alpha)
output[3] = input[3];
input += n_components;
output += n_components;
}
}
else if (o->clip_high)
{
while (n_pixels--)
{
output[0] = input[0] > o->high_limit ? o->high_limit : input[0];
output[1] = input[1] > o->high_limit ? o->high_limit : input[1];
output[2] = input[2] > o->high_limit ? o->high_limit : input[2];
if (has_alpha)
output[3] = input[3];
input += n_components;
output += n_components;
}
}
else if (o->clip_low)
{
while (n_pixels--)
{
output[0] = input[0] < o->low_limit ? o->low_limit : input[0];
output[1] = input[1] < o->low_limit ? o->low_limit : input[1];
output[2] = input[2] < o->low_limit ? o->low_limit : input[2];
if (has_alpha)
output[3] = input[3];
input += n_components;
output += n_components;
}
}
return TRUE;
}
/**
* 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);
}
}
GimpDrawable *
gimp_drawable_transform_rotate (GimpDrawable *drawable,
GimpContext *context,
GimpRotationType rotate_type,
gdouble center_x,
gdouble center_y,
gboolean clip_result)
{
GimpImage *image;
GeglBuffer *orig_buffer;
gint orig_offset_x;
gint orig_offset_y;
gboolean new_layer;
GimpDrawable *result = NULL;
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), NULL);
g_return_val_if_fail (gimp_item_is_attached (GIMP_ITEM (drawable)), NULL);
g_return_val_if_fail (GIMP_IS_CONTEXT (context), NULL);
image = gimp_item_get_image (GIMP_ITEM (drawable));
/* Start a transform undo group */
gimp_image_undo_group_start (image,
GIMP_UNDO_GROUP_TRANSFORM,
C_("undo-type", "Rotate"));
/* Cut/Copy from the specified drawable */
orig_buffer = gimp_drawable_transform_cut (drawable, context,
&orig_offset_x, &orig_offset_y,
&new_layer);
if (orig_buffer)
{
GeglBuffer *new_buffer;
gint new_offset_x;
gint new_offset_y;
/* always clip unfloated buffers so they keep their size */
if (GIMP_IS_CHANNEL (drawable) &&
! babl_format_has_alpha (gegl_buffer_get_format (orig_buffer)))
clip_result = TRUE;
/* also transform the mask if we are transforming an entire layer */
if (GIMP_IS_LAYER (drawable) &&
gimp_layer_get_mask (GIMP_LAYER (drawable)) &&
gimp_channel_is_empty (gimp_image_get_mask (image)))
{
GimpLayerMask *mask = gimp_layer_get_mask (GIMP_LAYER (drawable));
gimp_item_rotate (GIMP_ITEM (mask), context,
rotate_type,
center_x,
center_y,
clip_result);
}
/* transform the buffer */
new_buffer = gimp_drawable_transform_buffer_rotate (drawable, context,
orig_buffer,
orig_offset_x,
orig_offset_y,
rotate_type,
center_x, center_y,
clip_result,
&new_offset_x,
&new_offset_y);
/* Free the cut/copied buffer */
g_object_unref (orig_buffer);
if (new_buffer)
{
result = gimp_drawable_transform_paste (drawable, new_buffer,
new_offset_x, new_offset_y,
new_layer);
g_object_unref (new_buffer);
}
}
/* push the undo group end */
gimp_image_undo_group_end (image);
return result;
}
GeglBuffer *
gimp_drawable_transform_buffer_affine (GimpDrawable *drawable,
GimpContext *context,
GeglBuffer *orig_buffer,
gint orig_offset_x,
gint orig_offset_y,
const GimpMatrix3 *matrix,
GimpTransformDirection direction,
GimpInterpolationType interpolation_type,
gint recursion_level,
GimpTransformResize clip_result,
gint *new_offset_x,
gint *new_offset_y,
GimpProgress *progress)
{
GeglBuffer *new_buffer;
GimpMatrix3 m;
GimpMatrix3 inv;
gint u1, v1, u2, v2; /* source bounding box */
gint x1, y1, x2, y2; /* target bounding box */
GeglNode *affine;
GimpMatrix3 gegl_matrix;
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), NULL);
g_return_val_if_fail (gimp_item_is_attached (GIMP_ITEM (drawable)), NULL);
g_return_val_if_fail (GIMP_IS_CONTEXT (context), NULL);
g_return_val_if_fail (GEGL_IS_BUFFER (orig_buffer), NULL);
g_return_val_if_fail (matrix != NULL, NULL);
g_return_val_if_fail (new_offset_x != NULL, NULL);
g_return_val_if_fail (new_offset_y != NULL, NULL);
g_return_val_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress), NULL);
m = *matrix;
inv = *matrix;
if (direction == GIMP_TRANSFORM_BACKWARD)
{
/* keep the original matrix here, so we dont need to recalculate
* the inverse later
*/
gimp_matrix3_invert (&inv);
}
else
{
/* Find the inverse of the transformation matrix */
gimp_matrix3_invert (&m);
}
u1 = orig_offset_x;
v1 = orig_offset_y;
u2 = u1 + gegl_buffer_get_width (orig_buffer);
v2 = v1 + gegl_buffer_get_height (orig_buffer);
/* Always clip unfloated buffers since they must keep their size */
if (G_TYPE_FROM_INSTANCE (drawable) == GIMP_TYPE_CHANNEL &&
! babl_format_has_alpha (gegl_buffer_get_format (orig_buffer)))
clip_result = GIMP_TRANSFORM_RESIZE_CLIP;
/* Find the bounding coordinates of target */
gimp_transform_resize_boundary (&inv, clip_result,
u1, v1, u2, v2,
&x1, &y1, &x2, &y2);
/* Get the new temporary buffer for the transformed result */
new_buffer = gimp_gegl_buffer_new (GEGL_RECTANGLE (0, 0, x2 - x1, y2 - y1),
gegl_buffer_get_format (orig_buffer));
gimp_matrix3_identity (&gegl_matrix);
gimp_matrix3_translate (&gegl_matrix, u1, v1);
gimp_matrix3_mult (&inv, &gegl_matrix);
gimp_matrix3_translate (&gegl_matrix, -x1, -y1);
affine = gegl_node_new_child (NULL,
"operation", "gegl:transform",
"filter", gimp_interpolation_to_gegl_filter (interpolation_type),
"hard-edges", TRUE,
NULL);
gimp_gegl_node_set_matrix (affine, &gegl_matrix);
gimp_apply_operation (orig_buffer, progress, NULL,
affine,
new_buffer, NULL);
g_object_unref (affine);
*new_offset_x = x1;
*new_offset_y = y1;
return new_buffer;
}
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]);
}
}
}
}
gint
gegl_buffer_export_png (GeglBuffer *gegl_buffer,
const gchar *path,
gint compression,
gint bd,
gint src_x,
gint src_y,
gint width,
gint height)
{
FILE *fp;
gint i;
png_struct *png;
png_info *info;
guchar *pixels;
png_color_16 white;
int png_color_type;
gchar format_string[16];
const Babl *format;
gint bit_depth = 8;
if (!strcmp (path, "-"))
{
fp = stdout;
}
else
{
fp = fopen (path, "wb");
}
if (!fp)
{
return -1;
}
{
const Babl *babl = gegl_buffer_get_format (gegl_buffer);
if (bd == 16)
bit_depth = 16;
else
bit_depth = 8;
if (babl_format_has_alpha (babl))
if (babl_format_get_n_components (babl) != 2)
{
png_color_type = PNG_COLOR_TYPE_RGB_ALPHA;
strcpy (format_string, "R'G'B'A ");
}
else
{
png_color_type = PNG_COLOR_TYPE_GRAY_ALPHA;
strcpy (format_string, "Y'A ");
}
else if (babl_format_get_n_components (babl) != 1)
{
png_color_type = PNG_COLOR_TYPE_RGB;
strcpy (format_string, "R'G'B' ");
}
else
{
png_color_type = PNG_COLOR_TYPE_GRAY;
strcpy (format_string, "Y' ");
}
}
if (bit_depth == 16)
strcat (format_string, "u16");
else
strcat (format_string, "u8");
png = png_create_write_struct (PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
if (png == NULL)
{
if (stdout != fp)
fclose (fp);
return -1;
}
info = png_create_info_struct (png);
if (setjmp (png_jmpbuf (png)))
{
if (stdout != fp)
fclose (fp);
return -1;
}
png_set_compression_level (png, compression);
png_init_io (png, fp);
png_set_IHDR (png, info,
width, height, bit_depth, png_color_type,
PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_DEFAULT);
if (png_color_type == PNG_COLOR_TYPE_RGB || png_color_type == PNG_COLOR_TYPE_RGB_ALPHA)
{
white.red = 0xff;
white.blue = 0xff;
white.green = 0xff;
}
else
white.gray = 0xff;
png_set_bKGD (png, info, &white);
png_write_info (png, info);
#if BYTE_ORDER == LITTLE_ENDIAN
if (bit_depth > 8)
png_set_swap (png);
#endif
format = babl_format (format_string);
pixels = g_malloc0 (width * babl_format_get_bytes_per_pixel (format));
for (i=0; i< height; i++)
{
GeglRectangle rect;
rect.x = src_x;
rect.y = src_y+i;
rect.width = width;
rect.height = 1;
gegl_buffer_get (gegl_buffer, &rect, 1.0, babl_format (format_string), pixels, GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE);
png_write_rows (png, &pixels, 1);
}
png_write_end (png, info);
png_destroy_write_struct (&png, &info);
g_free (pixels);
if (stdout != fp)
fclose (fp);
return 0;
}
static void
lcms_layers_transform_rgb (gint *layers,
gint num_layers,
cmsHPROFILE src_profile,
cmsHPROFILE dest_profile,
GimpColorRenderingIntent intent,
gboolean bpc)
{
gint i;
for (i = 0; i < num_layers; i++)
{
gint32 layer_id = layers[i];
const Babl *layer_format;
gboolean has_alpha;
const Babl *type;
const Babl *iter_format = NULL;
cmsUInt32Number lcms_format = 0;
cmsHTRANSFORM transform = NULL;
gint *children;
gint num_children;
children = gimp_item_get_children (layer_id, &num_children);
if (children)
{
lcms_layers_transform_rgb (children, num_children,
src_profile, dest_profile,
intent, bpc);
g_free (children);
continue;
}
layer_format = gimp_drawable_get_format (layer_id);
has_alpha = babl_format_has_alpha (layer_format);
type = babl_format_get_type (layer_format, 0);
if (type == babl_type ("u8"))
{
if (has_alpha)
{
lcms_format = TYPE_RGBA_8;
iter_format = babl_format ("R'G'B'A u8");
}
else
{
lcms_format = TYPE_RGB_8;
iter_format = babl_format ("R'G'B' u8");
}
}
else if (type == babl_type ("u16"))
{
if (has_alpha)
{
lcms_format = TYPE_RGBA_16;
iter_format = babl_format ("R'G'B'A u16");
}
else
{
lcms_format = TYPE_RGB_16;
iter_format = babl_format ("R'G'B' u16");
}
}
else if (type == babl_type ("half")) /* 16-bit floating point (half) */
{
#ifdef TYPE_RGB_HALF_FLT
/* half float types are only in lcms 2.4 and newer */
if (has_alpha)
{
lcms_format = TYPE_RGBA_HALF_FLT;
iter_format = babl_format ("R'G'B'A half");
}
else
{
lcms_format = TYPE_RGB_HALF_FLT;
iter_format = babl_format ("R'G'B' float");
}
#endif /* TYPE_RGB_HALF_FLT */
}
else if (type == babl_type ("float"))
{
if (has_alpha)
{
lcms_format = TYPE_RGBA_FLT;
iter_format = babl_format ("R'G'B'A float");
}
else
{
lcms_format = TYPE_RGB_FLT;
iter_format = babl_format ("R'G'B' float");
}
}
else if (type == babl_type ("double"))
{
if (has_alpha)
{
#ifdef TYPE_RGBA_DBL
/* RGBA double not implemented in lcms */
lcms_format = TYPE_RGBA_DBL;
iter_format = babl_format ("R'G'B'A double");
#endif /* TYPE_RGBA_DBL */
}
else
{
lcms_format = TYPE_RGB_DBL;
iter_format = babl_format ("R'G'B' double");
}
}
if (lcms_format == 0)
{
g_printerr ("lcms: layer format %s not supported, "
"falling back to float\n",
babl_get_name (layer_format));
if (has_alpha)
{
lcms_format = TYPE_RGBA_FLT;
iter_format = babl_format ("R'G'B'A float");
}
else
{
lcms_format = TYPE_RGB_FLT;
iter_format = babl_format ("R'G'B' float");
}
}
transform = cmsCreateTransform (src_profile, lcms_format,
dest_profile, lcms_format,
intent,
cmsFLAGS_NOOPTIMIZE |
(bpc ? cmsFLAGS_BLACKPOINTCOMPENSATION : 0));
if (transform)
{
GeglBuffer *src_buffer;
GeglBuffer *dest_buffer;
GeglBufferIterator *iter;
gint layer_width;
gint layer_height;
gint layer_bpp;
gboolean layer_alpha;
gdouble progress_start = (gdouble) i / num_layers;
gdouble progress_end = (gdouble) (i + 1) / num_layers;
gdouble range = progress_end - progress_start;
gint count = 0;
gint done = 0;
src_buffer = gimp_drawable_get_buffer (layer_id);
dest_buffer = gimp_drawable_get_shadow_buffer (layer_id);
layer_width = gegl_buffer_get_width (src_buffer);
layer_height = gegl_buffer_get_height (src_buffer);
layer_bpp = babl_format_get_bytes_per_pixel (iter_format);
layer_alpha = babl_format_has_alpha (iter_format);
iter = gegl_buffer_iterator_new (src_buffer, NULL, 0,
iter_format,
GEGL_ACCESS_READ, GEGL_ABYSS_NONE);
gegl_buffer_iterator_add (iter, dest_buffer, NULL, 0,
iter_format,
GEGL_ACCESS_WRITE, GEGL_ABYSS_NONE);
while (gegl_buffer_iterator_next (iter))
{
/* lcms doesn't touch the alpha channel, simply
* copy everything to dest before the transform
*/
if (layer_alpha)
memcpy (iter->data[1], iter->data[0],
iter->length * layer_bpp);
cmsDoTransform (transform,
iter->data[0], iter->data[1], iter->length);
}
g_object_unref (src_buffer);
g_object_unref (dest_buffer);
gimp_drawable_merge_shadow (layer_id, TRUE);
gimp_drawable_update (layer_id, 0, 0, layer_width, layer_height);
if (count++ % 32 == 0)
{
gimp_progress_update (progress_start +
(gdouble) done /
(layer_width * layer_height) * range);
}
cmsDeleteTransform (transform);
}
}
}
/**
* 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);
}
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));
}