mirror of https://github.com/GNOME/gimp.git
552 lines
18 KiB
C
552 lines
18 KiB
C
/* GIMP - The GNU Image Manipulation Program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <cairo.h>
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#include <gegl.h>
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#include <gdk-pixbuf/gdk-pixbuf.h>
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#include "libgimpbase/gimpbase.h"
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#include "libgimpcolor/gimpcolor.h"
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#include "core-types.h"
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#include "gegl/gimp-babl.h"
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#include "gegl/gimp-gegl-loops.h"
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#include "gegl/gimp-gegl-utils.h"
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#include "gimp-memsize.h"
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#include "gimpbuffer.h"
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#include "gimpimage.h"
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#include "gimptempbuf.h"
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static void gimp_color_managed_iface_init (GimpColorManagedInterface *iface);
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static void gimp_buffer_finalize (GObject *object);
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static gint64 gimp_buffer_get_memsize (GimpObject *object,
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gint64 *gui_size);
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static gboolean gimp_buffer_get_size (GimpViewable *viewable,
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gint *width,
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gint *height);
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static void gimp_buffer_get_preview_size (GimpViewable *viewable,
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gint size,
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gboolean is_popup,
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gboolean dot_for_dot,
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gint *popup_width,
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gint *popup_height);
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static gboolean gimp_buffer_get_popup_size (GimpViewable *viewable,
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gint width,
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gint height,
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gboolean dot_for_dot,
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gint *popup_width,
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gint *popup_height);
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static GimpTempBuf * gimp_buffer_get_new_preview (GimpViewable *viewable,
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GimpContext *context,
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gint width,
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gint height);
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static GdkPixbuf * gimp_buffer_get_new_pixbuf (GimpViewable *viewable,
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GimpContext *context,
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gint width,
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gint height);
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static gchar * gimp_buffer_get_description (GimpViewable *viewable,
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gchar **tooltip);
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static const guint8 *
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gimp_buffer_color_managed_get_icc_profile (GimpColorManaged *managed,
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gsize *len);
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static GimpColorProfile *
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gimp_buffer_color_managed_get_color_profile (GimpColorManaged *managed);
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static void
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gimp_buffer_color_managed_profile_changed (GimpColorManaged *managed);
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G_DEFINE_TYPE_WITH_CODE (GimpBuffer, gimp_buffer, GIMP_TYPE_VIEWABLE,
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G_IMPLEMENT_INTERFACE (GIMP_TYPE_COLOR_MANAGED,
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gimp_color_managed_iface_init))
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#define parent_class gimp_buffer_parent_class
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static void
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gimp_buffer_class_init (GimpBufferClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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GimpObjectClass *gimp_object_class = GIMP_OBJECT_CLASS (klass);
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GimpViewableClass *viewable_class = GIMP_VIEWABLE_CLASS (klass);
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object_class->finalize = gimp_buffer_finalize;
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gimp_object_class->get_memsize = gimp_buffer_get_memsize;
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viewable_class->default_icon_name = "edit-paste";
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viewable_class->name_editable = TRUE;
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viewable_class->get_size = gimp_buffer_get_size;
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viewable_class->get_preview_size = gimp_buffer_get_preview_size;
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viewable_class->get_popup_size = gimp_buffer_get_popup_size;
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viewable_class->get_new_preview = gimp_buffer_get_new_preview;
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viewable_class->get_new_pixbuf = gimp_buffer_get_new_pixbuf;
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viewable_class->get_description = gimp_buffer_get_description;
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}
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static void
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gimp_color_managed_iface_init (GimpColorManagedInterface *iface)
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{
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iface->get_icc_profile = gimp_buffer_color_managed_get_icc_profile;
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iface->get_color_profile = gimp_buffer_color_managed_get_color_profile;
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iface->profile_changed = gimp_buffer_color_managed_profile_changed;
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}
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static void
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gimp_buffer_init (GimpBuffer *buffer)
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{
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}
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static void
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gimp_buffer_finalize (GObject *object)
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{
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GimpBuffer *buffer = GIMP_BUFFER (object);
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g_clear_object (&buffer->buffer);
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gimp_buffer_set_color_profile (buffer, NULL);
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static gint64
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gimp_buffer_get_memsize (GimpObject *object,
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gint64 *gui_size)
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{
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GimpBuffer *buffer = GIMP_BUFFER (object);
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gint64 memsize = 0;
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memsize += gimp_gegl_buffer_get_memsize (buffer->buffer);
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memsize += gimp_g_object_get_memsize (G_OBJECT (buffer->color_profile));
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memsize += gimp_g_object_get_memsize (G_OBJECT (buffer->format_profile));
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return memsize + GIMP_OBJECT_CLASS (parent_class)->get_memsize (object,
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gui_size);
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}
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static gboolean
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gimp_buffer_get_size (GimpViewable *viewable,
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gint *width,
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gint *height)
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{
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GimpBuffer *buffer = GIMP_BUFFER (viewable);
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*width = gimp_buffer_get_width (buffer);
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*height = gimp_buffer_get_height (buffer);
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return TRUE;
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}
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static void
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gimp_buffer_get_preview_size (GimpViewable *viewable,
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gint size,
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gboolean is_popup,
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gboolean dot_for_dot,
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gint *width,
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gint *height)
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{
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GimpBuffer *buffer = GIMP_BUFFER (viewable);
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gimp_viewable_calc_preview_size (gimp_buffer_get_width (buffer),
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gimp_buffer_get_height (buffer),
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size,
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size,
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dot_for_dot, 1.0, 1.0,
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width,
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height,
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NULL);
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}
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static gboolean
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gimp_buffer_get_popup_size (GimpViewable *viewable,
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gint width,
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gint height,
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gboolean dot_for_dot,
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gint *popup_width,
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gint *popup_height)
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{
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GimpBuffer *buffer;
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gint buffer_width;
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gint buffer_height;
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buffer = GIMP_BUFFER (viewable);
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buffer_width = gimp_buffer_get_width (buffer);
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buffer_height = gimp_buffer_get_height (buffer);
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if (buffer_width > width || buffer_height > height)
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{
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gboolean scaling_up;
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gimp_viewable_calc_preview_size (buffer_width,
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buffer_height,
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width * 2,
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height * 2,
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dot_for_dot, 1.0, 1.0,
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popup_width,
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popup_height,
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&scaling_up);
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if (scaling_up)
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{
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*popup_width = buffer_width;
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*popup_height = buffer_height;
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}
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return TRUE;
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}
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return FALSE;
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}
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static GimpTempBuf *
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gimp_buffer_get_new_preview (GimpViewable *viewable,
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GimpContext *context,
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gint width,
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gint height)
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{
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GimpBuffer *buffer = GIMP_BUFFER (viewable);
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const Babl *format = gimp_buffer_get_format (buffer);
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GimpTempBuf *preview;
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if (babl_format_is_palette (format))
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format = gimp_babl_format (GIMP_RGB,
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GIMP_PRECISION_U8_NON_LINEAR,
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babl_format_has_alpha (format),
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babl_format_get_space (format));
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else
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format = gimp_babl_format (gimp_babl_format_get_base_type (format),
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gimp_babl_precision (GIMP_COMPONENT_TYPE_U8,
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gimp_babl_format_get_trc (format)),
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babl_format_has_alpha (format),
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babl_format_get_space (format));
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preview = gimp_temp_buf_new (width, height, format);
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gegl_buffer_get (buffer->buffer, GEGL_RECTANGLE (0, 0, width, height),
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MIN ((gdouble) width / (gdouble) gimp_buffer_get_width (buffer),
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(gdouble) height / (gdouble) gimp_buffer_get_height (buffer)),
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format,
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gimp_temp_buf_get_data (preview),
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GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE);
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return preview;
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}
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static GdkPixbuf *
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gimp_buffer_get_new_pixbuf (GimpViewable *viewable,
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GimpContext *context,
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gint width,
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gint height)
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{
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GimpBuffer *buffer = GIMP_BUFFER (viewable);
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GdkPixbuf *pixbuf;
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gdouble scale;
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pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8,
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width, height);
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scale = MIN ((gdouble) width / (gdouble) gimp_buffer_get_width (buffer),
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(gdouble) height / (gdouble) gimp_buffer_get_height (buffer));
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if (buffer->color_profile)
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{
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GimpColorProfile *srgb_profile;
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GimpTempBuf *temp_buf;
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GeglBuffer *src_buf;
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GeglBuffer *dest_buf;
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srgb_profile = gimp_color_profile_new_rgb_srgb ();
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temp_buf = gimp_temp_buf_new (width, height,
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gimp_buffer_get_format (buffer));
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gegl_buffer_get (buffer->buffer,
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GEGL_RECTANGLE (0, 0, width, height),
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scale,
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gimp_temp_buf_get_format (temp_buf),
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gimp_temp_buf_get_data (temp_buf),
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GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_CLAMP);
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src_buf = gimp_temp_buf_create_buffer (temp_buf);
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dest_buf = gimp_pixbuf_create_buffer (pixbuf);
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gimp_temp_buf_unref (temp_buf);
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gimp_gegl_convert_color_profile (src_buf,
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GEGL_RECTANGLE (0, 0, width, height),
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buffer->color_profile,
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dest_buf,
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GEGL_RECTANGLE (0, 0, 0, 0),
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srgb_profile,
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GIMP_COLOR_RENDERING_INTENT_PERCEPTUAL,
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TRUE,
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NULL);
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g_object_unref (src_buf);
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g_object_unref (dest_buf);
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g_object_unref (srgb_profile);
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}
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else
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{
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gegl_buffer_get (buffer->buffer,
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GEGL_RECTANGLE (0, 0, width, height),
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scale,
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gimp_pixbuf_get_format (pixbuf),
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gdk_pixbuf_get_pixels (pixbuf),
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gdk_pixbuf_get_rowstride (pixbuf),
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GEGL_ABYSS_CLAMP);
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}
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return pixbuf;
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}
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static gchar *
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gimp_buffer_get_description (GimpViewable *viewable,
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gchar **tooltip)
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{
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GimpBuffer *buffer = GIMP_BUFFER (viewable);
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return g_strdup_printf ("%s (%d × %d)",
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gimp_object_get_name (buffer),
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gimp_buffer_get_width (buffer),
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gimp_buffer_get_height (buffer));
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}
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static const guint8 *
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gimp_buffer_color_managed_get_icc_profile (GimpColorManaged *managed,
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gsize *len)
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{
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GimpBuffer *buffer = GIMP_BUFFER (managed);
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if (buffer->color_profile)
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return gimp_color_profile_get_icc_profile (buffer->color_profile, len);
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/* creates buffer->format_profile */
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gimp_color_managed_get_color_profile (managed);
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return gimp_color_profile_get_icc_profile (buffer->format_profile, len);
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}
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static GimpColorProfile *
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gimp_buffer_color_managed_get_color_profile (GimpColorManaged *managed)
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{
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GimpBuffer *buffer = GIMP_BUFFER (managed);
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if (buffer->color_profile)
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return buffer->color_profile;
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if (! buffer->format_profile)
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buffer->format_profile =
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gimp_babl_format_get_color_profile (gimp_buffer_get_format (buffer));
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return buffer->format_profile;
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}
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static void
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gimp_buffer_color_managed_profile_changed (GimpColorManaged *managed)
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{
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gimp_viewable_invalidate_preview (GIMP_VIEWABLE (managed));
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}
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/* public functions */
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GimpBuffer *
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gimp_buffer_new (GeglBuffer *buffer,
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const gchar *name,
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gint offset_x,
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gint offset_y,
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gboolean copy_pixels)
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{
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GimpBuffer *gimp_buffer;
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g_return_val_if_fail (GEGL_IS_BUFFER (buffer), NULL);
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g_return_val_if_fail (name != NULL, NULL);
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gimp_buffer = g_object_new (GIMP_TYPE_BUFFER,
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"name", name,
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NULL);
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if (copy_pixels)
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gimp_buffer->buffer = gimp_gegl_buffer_dup (buffer);
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else
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gimp_buffer->buffer = g_object_ref (buffer);
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gimp_buffer->offset_x = offset_x;
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gimp_buffer->offset_y = offset_y;
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return gimp_buffer;
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}
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GimpBuffer *
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gimp_buffer_new_from_pixbuf (GdkPixbuf *pixbuf,
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const gchar *name,
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gint offset_x,
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gint offset_y)
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{
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GimpBuffer *gimp_buffer;
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GeglBuffer *buffer;
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guint8 *icc_data;
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gsize icc_len;
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GimpColorProfile *profile = NULL;
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g_return_val_if_fail (GDK_IS_PIXBUF (pixbuf), NULL);
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g_return_val_if_fail (name != NULL, NULL);
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buffer = gimp_pixbuf_create_buffer (pixbuf);
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gimp_buffer = gimp_buffer_new (buffer, name,
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offset_x, offset_y, FALSE);
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icc_data = gimp_pixbuf_get_icc_profile (pixbuf, &icc_len);
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if (icc_data)
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{
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profile = gimp_color_profile_new_from_icc_profile (icc_data, icc_len,
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NULL);
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g_free (icc_data);
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}
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if (! profile && gdk_pixbuf_get_colorspace (pixbuf) == GDK_COLORSPACE_RGB)
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{
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profile = gimp_color_profile_new_rgb_srgb ();
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}
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if (profile)
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{
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gimp_buffer_set_color_profile (gimp_buffer, profile);
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g_object_unref (profile);
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}
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g_object_unref (buffer);
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return gimp_buffer;
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}
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gint
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gimp_buffer_get_width (GimpBuffer *buffer)
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{
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g_return_val_if_fail (GIMP_IS_BUFFER (buffer), 0);
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return gegl_buffer_get_width (buffer->buffer);
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}
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gint
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gimp_buffer_get_height (GimpBuffer *buffer)
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{
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g_return_val_if_fail (GIMP_IS_BUFFER (buffer), 0);
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return gegl_buffer_get_height (buffer->buffer);
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}
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const Babl *
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gimp_buffer_get_format (GimpBuffer *buffer)
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{
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g_return_val_if_fail (GIMP_IS_BUFFER (buffer), NULL);
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return gegl_buffer_get_format (buffer->buffer);
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}
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GeglBuffer *
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gimp_buffer_get_buffer (GimpBuffer *buffer)
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{
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g_return_val_if_fail (GIMP_IS_BUFFER (buffer), NULL);
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return buffer->buffer;
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}
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void
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gimp_buffer_set_resolution (GimpBuffer *buffer,
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gdouble resolution_x,
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gdouble resolution_y)
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{
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g_return_if_fail (GIMP_IS_BUFFER (buffer));
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g_return_if_fail (resolution_x >= 0.0 && resolution_x <= GIMP_MAX_RESOLUTION);
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g_return_if_fail (resolution_y >= 0.0 && resolution_y <= GIMP_MAX_RESOLUTION);
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buffer->resolution_x = resolution_x;
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buffer->resolution_y = resolution_y;
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}
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gboolean
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gimp_buffer_get_resolution (GimpBuffer *buffer,
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gdouble *resolution_x,
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gdouble *resolution_y)
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{
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g_return_val_if_fail (GIMP_IS_BUFFER (buffer), FALSE);
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if (buffer->resolution_x > 0.0 &&
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buffer->resolution_y > 0.0)
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{
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if (resolution_x) *resolution_x = buffer->resolution_x;
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if (resolution_y) *resolution_y = buffer->resolution_y;
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return TRUE;
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}
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return FALSE;
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}
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void
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gimp_buffer_set_unit (GimpBuffer *buffer,
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GimpUnit unit)
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{
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g_return_if_fail (GIMP_IS_BUFFER (buffer));
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g_return_if_fail (unit > GIMP_UNIT_PIXEL);
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buffer->unit = unit;
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}
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GimpUnit
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gimp_buffer_get_unit (GimpBuffer *buffer)
|
||
{
|
||
g_return_val_if_fail (GIMP_IS_BUFFER (buffer), GIMP_UNIT_PIXEL);
|
||
|
||
return buffer->unit;
|
||
}
|
||
|
||
void
|
||
gimp_buffer_set_color_profile (GimpBuffer *buffer,
|
||
GimpColorProfile *profile)
|
||
{
|
||
g_return_if_fail (GIMP_IS_BUFFER (buffer));
|
||
g_return_if_fail (profile == NULL || GIMP_IS_COLOR_PROFILE (profile));
|
||
|
||
if (profile != buffer->color_profile)
|
||
{
|
||
g_set_object (&buffer->color_profile, profile);
|
||
}
|
||
|
||
g_clear_object (&buffer->format_profile);
|
||
}
|
||
|
||
GimpColorProfile *
|
||
gimp_buffer_get_color_profile (GimpBuffer *buffer)
|
||
{
|
||
g_return_val_if_fail (GIMP_IS_BUFFER (buffer), NULL);
|
||
|
||
return buffer->color_profile;
|
||
}
|