mirror of
https://github.com/brl/mutter.git
synced 2024-11-23 00:20:42 -05:00
Add an actor for drawing textures clipped to a list rectangles
This commit is contained in:
Neil Roberts
parent
d6f340eb96
commit
99d3cc1b2b
@ -105,6 +105,8 @@ metacity_SOURCES= \
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if WITH_CLUTTER
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if WITH_CLUTTER
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metacity_SOURCES += compositor/compositor-clutter.c \
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metacity_SOURCES += compositor/compositor-clutter.c \
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compositor/compositor-clutter.h \
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compositor/compositor-clutter.h \
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compositor/shaped-texture.c \
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compositor/shaped-texture.h \
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include/compositor-clutter-plugin.h \
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include/compositor-clutter-plugin.h \
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compositor/compositor-clutter-plugin-manager.c \
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compositor/compositor-clutter-plugin-manager.c \
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compositor/compositor-clutter-plugin-manager.h
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compositor/compositor-clutter-plugin-manager.h
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495
src/compositor/shaped-texture.c
Normal file
495
src/compositor/shaped-texture.c
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@ -0,0 +1,495 @@
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/*
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* shaped texture
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*
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* An actor to draw a texture clipped to a list of rectangles
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*
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* Authored By Neil Roberts <neil@linux.intel.com>
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*
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* Copyright (C) 2008 Intel Corporation
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (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, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* 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, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*/
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#include <clutter/clutter-texture.h>
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#include <cogl/cogl.h>
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#include <string.h>
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#include "shaped-texture.h"
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static void meta_shaped_texture_dispose (GObject *object);
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static void meta_shaped_texture_finalize (GObject *object);
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static void meta_shaped_texture_paint (ClutterActor *actor);
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static void meta_shaped_texture_pick (ClutterActor *actor,
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const ClutterColor *color);
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static void meta_shaped_texture_dirty_mask (MetaShapedTexture *stex);
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G_DEFINE_TYPE (MetaShapedTexture, meta_shaped_texture,
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CLUTTER_TYPE_TEXTURE);
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#define META_SHAPED_TEXTURE_GET_PRIVATE(obj) \
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(G_TYPE_INSTANCE_GET_PRIVATE ((obj), META_TYPE_SHAPED_TEXTURE, \
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MetaShapedTexturePrivate))
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enum TstMultiTexSupport
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{
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TST_MULTI_TEX_SUPPORT_UNKNOWN = 0,
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TST_MULTI_TEX_SUPPORT_YES,
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TST_MULTI_TEX_SUPPORT_NO
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};
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static enum TstMultiTexSupport
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tst_multi_tex_support = TST_MULTI_TEX_SUPPORT_UNKNOWN;
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typedef void (* TstActiveTextureFunc) (GLenum texture);
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typedef void (* TstClientActiveTextureFunc) (GLenum texture);
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static TstActiveTextureFunc tst_active_texture;
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static TstClientActiveTextureFunc tst_client_active_texture;
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struct _MetaShapedTexturePrivate
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{
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CoglHandle mask_texture;
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guint mask_width, mask_height;
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GLint mask_gl_width, mask_gl_height;
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GLfloat mask_tex_coords[8];
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GArray *rectangles;
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};
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static void
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meta_shaped_texture_class_init (MetaShapedTextureClass *klass)
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{
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GObjectClass *gobject_class = (GObjectClass *) klass;
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ClutterActorClass *actor_class = (ClutterActorClass *) klass;
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gobject_class->dispose = meta_shaped_texture_dispose;
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gobject_class->finalize = meta_shaped_texture_finalize;
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actor_class->paint = meta_shaped_texture_paint;
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actor_class->pick = meta_shaped_texture_pick;
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g_type_class_add_private (klass, sizeof (MetaShapedTexturePrivate));
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}
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static void
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meta_shaped_texture_init (MetaShapedTexture *self)
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{
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MetaShapedTexturePrivate *priv;
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priv = self->priv = META_SHAPED_TEXTURE_GET_PRIVATE (self);
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priv->rectangles = g_array_new (FALSE, FALSE, sizeof (ClutterGeometry));
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priv->mask_texture = COGL_INVALID_HANDLE;
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}
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static void
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meta_shaped_texture_dispose (GObject *object)
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{
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MetaShapedTexture *self = (MetaShapedTexture *) object;
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meta_shaped_texture_dirty_mask (self);
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G_OBJECT_CLASS (meta_shaped_texture_parent_class)->dispose (object);
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}
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static void
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meta_shaped_texture_finalize (GObject *object)
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{
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MetaShapedTexture *self = (MetaShapedTexture *) object;
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MetaShapedTexturePrivate *priv = self->priv;
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g_array_free (priv->rectangles, TRUE);
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G_OBJECT_CLASS (meta_shaped_texture_parent_class)->finalize (object);
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}
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static void
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meta_shaped_texture_dirty_mask (MetaShapedTexture *stex)
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{
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MetaShapedTexturePrivate *priv = stex->priv;
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if (priv->mask_texture != COGL_INVALID_HANDLE)
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{
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cogl_texture_unref (priv->mask_texture);
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priv->mask_texture = COGL_INVALID_HANDLE;
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}
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}
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static gboolean
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meta_shaped_texture_is_multi_tex_supported (void)
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{
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const gchar *extensions;
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GLint max_tex_units = 0;
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if (tst_multi_tex_support != TST_MULTI_TEX_SUPPORT_UNKNOWN)
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return tst_multi_tex_support == TST_MULTI_TEX_SUPPORT_YES;
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extensions = (const gchar *) glGetString (GL_EXTENSIONS);
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tst_active_texture = (TstActiveTextureFunc)
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cogl_get_proc_address ("glActiveTextureARB");
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tst_client_active_texture = (TstClientActiveTextureFunc)
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cogl_get_proc_address ("glClientActiveTextureARB");
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glGetIntegerv (GL_MAX_TEXTURE_UNITS, &max_tex_units);
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if (extensions
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&& cogl_check_extension ("GL_ARB_multitexture", extensions)
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&& tst_active_texture
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&& tst_client_active_texture
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&& max_tex_units > 1)
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{
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tst_multi_tex_support = TST_MULTI_TEX_SUPPORT_YES;
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return TRUE;
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}
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else
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{
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g_warning ("multi texturing not supported");
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tst_multi_tex_support = TST_MULTI_TEX_SUPPORT_NO;
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return FALSE;
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}
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}
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static void
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meta_shaped_texture_set_coord_array (GLfloat x1, GLfloat y1,
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GLfloat x2, GLfloat y2,
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GLfloat *coords)
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{
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coords[0] = x1;
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coords[1] = y2;
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coords[2] = x2;
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coords[3] = y2;
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coords[4] = x1;
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coords[5] = y1;
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coords[6] = x2;
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coords[7] = y1;
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}
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static void
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meta_shaped_texture_ensure_mask (MetaShapedTexture *stex)
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{
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MetaShapedTexturePrivate *priv = stex->priv;
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CoglHandle paint_tex;
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guint tex_width, tex_height;
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GLuint mask_gl_tex;
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paint_tex = clutter_texture_get_cogl_texture (CLUTTER_TEXTURE (stex));
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if (paint_tex == COGL_INVALID_HANDLE)
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return;
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tex_width = cogl_texture_get_width (paint_tex);
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tex_height = cogl_texture_get_height (paint_tex);
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/* If the mask texture we have was created for a different size then
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recreate it */
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if (priv->mask_texture != COGL_INVALID_HANDLE
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&& (priv->mask_width != tex_width || priv->mask_height != tex_height))
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meta_shaped_texture_dirty_mask (stex);
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/* If we don't have a mask texture yet then create one */
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if (priv->mask_texture == COGL_INVALID_HANDLE)
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{
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guchar *mask_data;
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const ClutterGeometry *rect;
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/* Create data for an empty image */
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mask_data = g_malloc0 (tex_width * tex_height);
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/* Cut out a hole for each rectangle */
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for (rect = (ClutterGeometry *) priv->rectangles->data
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+ priv->rectangles->len;
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rect-- > (ClutterGeometry *) priv->rectangles->data;)
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{
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gint x1 = rect->x, x2 = x1 + rect->width;
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gint y1 = rect->y, y2 = y1 + rect->height;
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guchar *p;
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/* Clip the rectangle to the size of the texture */
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x1 = CLAMP (x1, 0, (gint) tex_width - 1);
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x2 = CLAMP (x2, x1, (gint) tex_width);
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y1 = CLAMP (y1, 0, (gint) tex_height - 1);
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y2 = CLAMP (y2, y1, (gint) tex_height);
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/* Fill the rectangle */
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for (p = mask_data + y1 * tex_width + x1;
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y1 < y2;
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y1++, p += tex_width)
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memset (p, 255, x2 - x1);
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}
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priv->mask_texture = cogl_texture_new_from_data (tex_width, tex_height,
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-1, FALSE,
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COGL_PIXEL_FORMAT_A_8,
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COGL_PIXEL_FORMAT_ANY,
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tex_width,
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mask_data);
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g_free (mask_data);
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priv->mask_width = tex_width;
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priv->mask_height = tex_height;
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cogl_texture_get_gl_texture (priv->mask_texture, &mask_gl_tex, NULL);
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glBindTexture (GL_TEXTURE_2D, mask_gl_tex);
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glGetTexLevelParameteriv (GL_TEXTURE_2D, 0,
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GL_TEXTURE_WIDTH,
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&priv->mask_gl_width);
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glGetTexLevelParameteriv (GL_TEXTURE_2D, 0,
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GL_TEXTURE_HEIGHT,
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&priv->mask_gl_height);
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if (priv->mask_gl_width == tex_width
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&& priv->mask_gl_height == tex_height)
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meta_shaped_texture_set_coord_array (0.0f, 0.0f, 1.0f, 1.0f,
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priv->mask_tex_coords);
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else
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meta_shaped_texture_set_coord_array (0.0f, 0.0f,
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tex_width
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/ (GLfloat) priv->mask_gl_width,
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tex_height
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/ (GLfloat) priv->mask_gl_height,
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priv->mask_tex_coords);
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}
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}
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static void
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meta_shaped_texture_paint (ClutterActor *actor)
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{
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MetaShapedTexture *stex = (MetaShapedTexture *) actor;
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MetaShapedTexturePrivate *priv = stex->priv;
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CoglHandle paint_tex;
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guint tex_width, tex_height;
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GLboolean texture_was_enabled, blend_was_enabled;
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GLboolean vertex_array_was_enabled, tex_coord_array_was_enabled;
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GLboolean color_array_was_enabled;
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GLuint paint_gl_tex, mask_gl_tex;
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GLint paint_gl_width, paint_gl_height;
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GLfloat vertex_coords[8], paint_tex_coords[8];
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ClutterActorBox alloc;
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static const ClutterColor white = { 0xff, 0xff, 0xff, 0xff };
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/* If there are no rectangles or multi-texturing isn't supported,
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fallback to the regular paint method */
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if (priv->rectangles->len < 1
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|| !meta_shaped_texture_is_multi_tex_supported ())
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{
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CLUTTER_ACTOR_CLASS (meta_shaped_texture_parent_class)
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->paint (actor);
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return;
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}
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if (!CLUTTER_ACTOR_IS_REALIZED (CLUTTER_ACTOR (stex)))
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clutter_actor_realize (CLUTTER_ACTOR (stex));
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paint_tex = clutter_texture_get_cogl_texture (CLUTTER_TEXTURE (stex));
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if (paint_tex == COGL_INVALID_HANDLE)
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return;
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tex_width = cogl_texture_get_width (paint_tex);
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tex_height = cogl_texture_get_height (paint_tex);
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meta_shaped_texture_ensure_mask (stex);
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cogl_texture_get_gl_texture (paint_tex, &paint_gl_tex, NULL);
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cogl_texture_get_gl_texture (priv->mask_texture, &mask_gl_tex, NULL);
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/* We need to keep track of the some of the old state so that we
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don't confuse Cogl */
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texture_was_enabled = glIsEnabled (GL_TEXTURE_2D);
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blend_was_enabled = glIsEnabled (GL_BLEND);
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vertex_array_was_enabled = glIsEnabled (GL_VERTEX_ARRAY);
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tex_coord_array_was_enabled = glIsEnabled (GL_TEXTURE_COORD_ARRAY);
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color_array_was_enabled = glIsEnabled (GL_COLOR_ARRAY);
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glEnable (GL_TEXTURE_2D);
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glEnable (GL_BLEND);
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glEnableClientState (GL_VERTEX_ARRAY);
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glEnableClientState (GL_TEXTURE_COORD_ARRAY);
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glDisableClientState (GL_COLOR_ARRAY);
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glVertexPointer (2, GL_FLOAT, 0, vertex_coords);
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glTexCoordPointer (2, GL_FLOAT, 0, paint_tex_coords);
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cogl_color (&white);
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/* Put the main painting texture in the first texture unit */
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glBindTexture (GL_TEXTURE_2D, paint_gl_tex);
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/* We need the actual size of the texture so that we can calculate
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the right texture coordinates if NPOTs textures are not supported
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and Cogl has oversized the texture */
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glGetTexLevelParameteriv (GL_TEXTURE_2D, 0,
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GL_TEXTURE_WIDTH,
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&paint_gl_width);
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glGetTexLevelParameteriv (GL_TEXTURE_2D, 0,
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GL_TEXTURE_HEIGHT,
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&paint_gl_height);
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/* Put the mask texture in the second texture unit */
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tst_active_texture (GL_TEXTURE1);
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tst_client_active_texture (GL_TEXTURE1);
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glBindTexture (GL_TEXTURE_2D, mask_gl_tex);
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glEnable (GL_TEXTURE_2D);
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glEnableClientState (GL_TEXTURE_COORD_ARRAY);
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glTexCoordPointer (2, GL_FLOAT, 0, priv->mask_tex_coords);
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||||||
|
glTexEnvi (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE);
|
||||||
|
|
||||||
|
/* Multiply the alpha by the alpha in the second texture */
|
||||||
|
glTexEnvi (GL_TEXTURE_ENV, GL_COMBINE_ALPHA, GL_MODULATE);
|
||||||
|
glTexEnvi (GL_TEXTURE_ENV, GL_SRC0_ALPHA, GL_TEXTURE);
|
||||||
|
glTexEnvi (GL_TEXTURE_ENV, GL_SRC1_ALPHA, GL_PREVIOUS);
|
||||||
|
|
||||||
|
/* Replace the RGB in the second texture with that of the first
|
||||||
|
texture */
|
||||||
|
glTexEnvi (GL_TEXTURE_ENV, GL_COMBINE_RGB, GL_REPLACE);
|
||||||
|
glTexEnvi (GL_TEXTURE_ENV, GL_SRC0_RGB, GL_PREVIOUS);
|
||||||
|
|
||||||
|
clutter_actor_get_allocation_box (actor, &alloc);
|
||||||
|
|
||||||
|
meta_shaped_texture_set_coord_array (0, 0,
|
||||||
|
CLUTTER_UNITS_TO_FLOAT (alloc.x2
|
||||||
|
- alloc.x1),
|
||||||
|
CLUTTER_UNITS_TO_FLOAT (alloc.y2
|
||||||
|
- alloc.y1),
|
||||||
|
vertex_coords);
|
||||||
|
|
||||||
|
if (paint_gl_width == tex_width && paint_gl_height == tex_height)
|
||||||
|
meta_shaped_texture_set_coord_array (0.0f, 0.0f, 1.0f, 1.0f,
|
||||||
|
paint_tex_coords);
|
||||||
|
else
|
||||||
|
meta_shaped_texture_set_coord_array (0.0f, 0.0f,
|
||||||
|
tex_width
|
||||||
|
/ (GLfloat) paint_gl_width,
|
||||||
|
tex_height
|
||||||
|
/ (GLfloat) paint_gl_height,
|
||||||
|
paint_tex_coords);
|
||||||
|
|
||||||
|
glDrawArrays (GL_TRIANGLE_STRIP, 0, 4);
|
||||||
|
|
||||||
|
/* Disable the second texture unit and coord array */
|
||||||
|
glDisable (GL_TEXTURE_2D);
|
||||||
|
glDisableClientState (GL_TEXTURE_COORD_ARRAY);
|
||||||
|
|
||||||
|
/* Go back to operating on the first texture unit */
|
||||||
|
tst_active_texture (GL_TEXTURE0);
|
||||||
|
tst_client_active_texture (GL_TEXTURE0);
|
||||||
|
|
||||||
|
/* Restore the old state */
|
||||||
|
if (!texture_was_enabled)
|
||||||
|
glDisable (GL_TEXTURE_2D);
|
||||||
|
if (!blend_was_enabled)
|
||||||
|
glDisable (GL_BLEND);
|
||||||
|
if (!vertex_array_was_enabled)
|
||||||
|
glDisableClientState (GL_VERTEX_ARRAY);
|
||||||
|
if (!tex_coord_array_was_enabled)
|
||||||
|
glDisableClientState (GL_TEXTURE_COORD_ARRAY);
|
||||||
|
if (color_array_was_enabled)
|
||||||
|
glEnableClientState (GL_COLOR_ARRAY);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
meta_shaped_texture_pick (ClutterActor *actor,
|
||||||
|
const ClutterColor *color)
|
||||||
|
{
|
||||||
|
MetaShapedTexture *stex = (MetaShapedTexture *) actor;
|
||||||
|
MetaShapedTexturePrivate *priv = stex->priv;
|
||||||
|
|
||||||
|
/* If there are no rectangles then use the regular pick */
|
||||||
|
if (priv->rectangles->len < 1
|
||||||
|
|| !meta_shaped_texture_is_multi_tex_supported ())
|
||||||
|
CLUTTER_ACTOR_CLASS (meta_shaped_texture_parent_class)
|
||||||
|
->pick (actor, color);
|
||||||
|
else if (clutter_actor_should_pick_paint (actor))
|
||||||
|
{
|
||||||
|
CoglHandle paint_tex;
|
||||||
|
ClutterActorBox alloc;
|
||||||
|
|
||||||
|
paint_tex = clutter_texture_get_cogl_texture (CLUTTER_TEXTURE (stex));
|
||||||
|
|
||||||
|
if (paint_tex == COGL_INVALID_HANDLE)
|
||||||
|
return;
|
||||||
|
|
||||||
|
meta_shaped_texture_ensure_mask (stex);
|
||||||
|
|
||||||
|
cogl_color (color);
|
||||||
|
|
||||||
|
clutter_actor_get_allocation_box (actor, &alloc);
|
||||||
|
|
||||||
|
/* Paint the mask rectangle in the given color */
|
||||||
|
cogl_texture_rectangle (priv->mask_texture,
|
||||||
|
0, 0,
|
||||||
|
CLUTTER_UNITS_TO_FIXED (alloc.x2 - alloc.x1),
|
||||||
|
CLUTTER_UNITS_TO_FIXED (alloc.y2 - alloc.y1),
|
||||||
|
0, 0, CFX_ONE, CFX_ONE);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
ClutterActor *
|
||||||
|
meta_shaped_texture_new (void)
|
||||||
|
{
|
||||||
|
ClutterActor *self = g_object_new (META_TYPE_SHAPED_TEXTURE, NULL);
|
||||||
|
|
||||||
|
return self;
|
||||||
|
}
|
||||||
|
|
||||||
|
void
|
||||||
|
meta_shaped_texture_clear_rectangles (MetaShapedTexture *stex)
|
||||||
|
{
|
||||||
|
MetaShapedTexturePrivate *priv;
|
||||||
|
|
||||||
|
g_return_if_fail (META_IS_SHAPED_TEXTURE (stex));
|
||||||
|
|
||||||
|
priv = stex->priv;
|
||||||
|
|
||||||
|
g_array_set_size (priv->rectangles, 0);
|
||||||
|
meta_shaped_texture_dirty_mask (stex);
|
||||||
|
clutter_actor_queue_redraw (CLUTTER_ACTOR (stex));
|
||||||
|
}
|
||||||
|
|
||||||
|
void
|
||||||
|
meta_shaped_texture_add_rectangle (MetaShapedTexture *stex,
|
||||||
|
const ClutterGeometry *rect)
|
||||||
|
{
|
||||||
|
g_return_if_fail (META_IS_SHAPED_TEXTURE (stex));
|
||||||
|
|
||||||
|
meta_shaped_texture_add_rectangles (stex, 1, rect);
|
||||||
|
}
|
||||||
|
|
||||||
|
void
|
||||||
|
meta_shaped_texture_add_rectangles (MetaShapedTexture *stex,
|
||||||
|
size_t num_rects,
|
||||||
|
const ClutterGeometry *rects)
|
||||||
|
{
|
||||||
|
MetaShapedTexturePrivate *priv;
|
||||||
|
|
||||||
|
g_return_if_fail (META_IS_SHAPED_TEXTURE (stex));
|
||||||
|
|
||||||
|
priv = stex->priv;
|
||||||
|
|
||||||
|
g_array_append_vals (priv->rectangles, rects, num_rects);
|
||||||
|
|
||||||
|
meta_shaped_texture_dirty_mask (stex);
|
||||||
|
clutter_actor_queue_redraw (CLUTTER_ACTOR (stex));
|
||||||
|
}
|
||||||
84
src/compositor/shaped-texture.h
Normal file
84
src/compositor/shaped-texture.h
Normal file
@ -0,0 +1,84 @@
|
|||||||
|
/*
|
||||||
|
* shaped texture
|
||||||
|
*
|
||||||
|
* An actor to draw a texture clipped to a list of rectangles
|
||||||
|
*
|
||||||
|
* Authored By Neil Roberts <neil@linux.intel.com>
|
||||||
|
*
|
||||||
|
* Copyright (C) 2008 Intel Corporation
|
||||||
|
*
|
||||||
|
* This program is free software; you can redistribute it and/or
|
||||||
|
* modify it under the terms of the GNU General Public License as
|
||||||
|
* published by the Free Software Foundation; either version 2 of the
|
||||||
|
* License, or (at your option) any later version.
|
||||||
|
*
|
||||||
|
* This program is distributed in the hope that it will be useful, but
|
||||||
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||||
|
* General Public License for more details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU General Public License
|
||||||
|
* along with this program; if not, write to the Free Software
|
||||||
|
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
|
||||||
|
* 02111-1307, USA.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef __META_SHAPED_TEXTURE_H__
|
||||||
|
#define __META_SHAPED_TEXTURE_H__
|
||||||
|
|
||||||
|
#include <clutter/clutter-texture.h>
|
||||||
|
|
||||||
|
G_BEGIN_DECLS
|
||||||
|
|
||||||
|
#define META_TYPE_SHAPED_TEXTURE \
|
||||||
|
(meta_shaped_texture_get_type())
|
||||||
|
#define META_SHAPED_TEXTURE(obj) \
|
||||||
|
(G_TYPE_CHECK_INSTANCE_CAST ((obj), \
|
||||||
|
META_TYPE_SHAPED_TEXTURE, \
|
||||||
|
MetaShapedTexture))
|
||||||
|
#define META_SHAPED_TEXTURE_CLASS(klass) \
|
||||||
|
(G_TYPE_CHECK_CLASS_CAST ((klass), \
|
||||||
|
META_TYPE_SHAPED_TEXTURE, \
|
||||||
|
MetaShapedTextureClass))
|
||||||
|
#define META_IS_SHAPED_TEXTURE(obj) \
|
||||||
|
(G_TYPE_CHECK_INSTANCE_TYPE ((obj), \
|
||||||
|
META_TYPE_SHAPED_TEXTURE))
|
||||||
|
#define META_IS_SHAPED_TEXTURE_CLASS(klass) \
|
||||||
|
(G_TYPE_CHECK_CLASS_TYPE ((klass), \
|
||||||
|
META_TYPE_SHAPED_TEXTURE))
|
||||||
|
#define META_SHAPED_TEXTURE_GET_CLASS(obj) \
|
||||||
|
(G_TYPE_INSTANCE_GET_CLASS ((obj), \
|
||||||
|
META_TYPE_SHAPED_TEXTURE, \
|
||||||
|
MetaShapedTextureClass))
|
||||||
|
|
||||||
|
typedef struct _MetaShapedTexture MetaShapedTexture;
|
||||||
|
typedef struct _MetaShapedTextureClass MetaShapedTextureClass;
|
||||||
|
typedef struct _MetaShapedTexturePrivate MetaShapedTexturePrivate;
|
||||||
|
|
||||||
|
struct _MetaShapedTextureClass
|
||||||
|
{
|
||||||
|
ClutterTextureClass parent_class;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct _MetaShapedTexture
|
||||||
|
{
|
||||||
|
ClutterTexture parent;
|
||||||
|
|
||||||
|
MetaShapedTexturePrivate *priv;
|
||||||
|
};
|
||||||
|
|
||||||
|
GType meta_shaped_texture_get_type (void) G_GNUC_CONST;
|
||||||
|
|
||||||
|
ClutterActor *meta_shaped_texture_new (void);
|
||||||
|
|
||||||
|
void meta_shaped_texture_clear_rectangles (MetaShapedTexture *stex);
|
||||||
|
|
||||||
|
void meta_shaped_texture_add_rectangle (MetaShapedTexture *stex,
|
||||||
|
const ClutterGeometry *rect);
|
||||||
|
void meta_shaped_texture_add_rectangles (MetaShapedTexture *stex,
|
||||||
|
size_t num_rects,
|
||||||
|
const ClutterGeometry *rects);
|
||||||
|
|
||||||
|
G_END_DECLS
|
||||||
|
|
||||||
|
#endif /* __META_SHAPED_TEXTURE_H__ */
|
||||||
Loading…
Reference in New Issue
Block a user