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mutter/src/backends/meta-cursor-private.h

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cursor-tracker: Start moving some code to a new file I want the MetaCursorTracker to mostly be about retrieving cursor information. Start moving the code that loads cursor images to a new file, MetaCursor. Eventually, MetaCursorTracker's APIs will all take MetaCursorReferences, and we can have a clean backend split here.
2014-03-31 14:08:14 -04:00
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/*
* Copyright 2013 Red Hat, Inc.
*
* 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, see <http://www.gnu.org/licenses/>.
*
* Author: Giovanni Campagna <gcampagn@redhat.com>
*/
#ifndef META_CURSOR_PRIVATE_H
#define META_CURSOR_PRIVATE_H
#include "meta-cursor.h"
#include <cogl/cogl.h>
#include <gbm.h>
cursor: Split out the structure for the actual textures / buffers out This will allow us to have a MetaCursorReference 'subclass' that's lazily loaded. We currently always load all the images. The long-term plan is to have a subclass for each "backend" and only have CoglTexture as a common denominator. For the nested X11 backend, we use XDefineCursor on our stage window. For the Wayland backend, we would use set_cursor on our stage surface. For the native backend, we would use the GBM code that's there right now. The CoglTexture is there to be a "shared fallback" between all devices, and also for the get_sprite API. The odd man out is the X11 compositor case. For that, we need to move the responsibility of setting the final cursor image out of MetaCursorTracker, and simply have it be about tracking the used sprite image and pointer position.
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typedef struct {
cursor-tracker: Start moving some code to a new file I want the MetaCursorTracker to mostly be about retrieving cursor information. Start moving the code that loads cursor images to a new file, MetaCursor. Eventually, MetaCursorTracker's APIs will all take MetaCursorReferences, and we can have a clean backend split here.
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CoglTexture2D *texture;
struct gbm_bo *bo;
int hot_x, hot_y;
cursor: Split out the structure for the actual textures / buffers out This will allow us to have a MetaCursorReference 'subclass' that's lazily loaded. We currently always load all the images. The long-term plan is to have a subclass for each "backend" and only have CoglTexture as a common denominator. For the nested X11 backend, we use XDefineCursor on our stage window. For the Wayland backend, we would use set_cursor on our stage surface. For the native backend, we would use the GBM code that's there right now. The CoglTexture is there to be a "shared fallback" between all devices, and also for the get_sprite API. The odd man out is the X11 compositor case. For that, we need to move the responsibility of setting the final cursor image out of MetaCursorTracker, and simply have it be about tracking the used sprite image and pointer position.
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} MetaCursorImage;
struct _MetaCursorReference {
int ref_count;
MetaCursorImage image;
cursor-tracker: Start moving some code to a new file I want the MetaCursorTracker to mostly be about retrieving cursor information. Start moving the code that loads cursor images to a new file, MetaCursor. Eventually, MetaCursorTracker's APIs will all take MetaCursorReferences, and we can have a clean backend split here.
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};
cursor: Introduce accessors for the texture / GBM bo We want to make this private, and have MetaCursorReference be backend-defined, with the texture possibly loaded on demand. We can't make the definition of MetaCursorReference truly private yet because of the XFixes cursor. A victim of MetaCursorTracker trying to do too many things at once...
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CoglTexture *meta_cursor_reference_get_cogl_texture (MetaCursorReference *cursor,
int *hot_x,
int *hot_y);
struct gbm_bo *meta_cursor_reference_get_gbm_bo (MetaCursorReference *cursor,
int *hot_x,
int *hot_y);
cursor-tracker: Start moving some code to a new file I want the MetaCursorTracker to mostly be about retrieving cursor information. Start moving the code that loads cursor images to a new file, MetaCursor. Eventually, MetaCursorTracker's APIs will all take MetaCursorReferences, and we can have a clean backend split here.
2014-03-31 14:08:14 -04:00
#endif /* META_CURSOR_PRIVATE_H */
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