79719347c8
This factors out the CoglOnscreen code from cogl-framebuffer.c so we now have cogl-onscreen.c, cogl-onscreen.h and cogl-onscreen-private.h. Notably some of the functions pulled out are currently namespaced as cogl_framebuffer but we know we are planning on renaming them to be in the cogl_onscreen namespace; such as cogl_framebuffer_swap_buffers(). Reviewed-by: Neil Roberts <neil@linux.intel.com>
259 lines
9.0 KiB
C
259 lines
9.0 KiB
C
/*
|
|
* Cogl
|
|
*
|
|
* An object oriented GL/GLES Abstraction/Utility Layer
|
|
*
|
|
* Copyright (C) 2011 Intel Corporation.
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library 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
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library. If not, see
|
|
* <http://www.gnu.org/licenses/>.
|
|
*
|
|
*
|
|
*
|
|
* Authors:
|
|
* Robert Bragg <robert@linux.intel.com>
|
|
*/
|
|
|
|
#if !defined(__COGL_H_INSIDE__) && !defined(CLUTTER_COMPILATION)
|
|
#error "Only <cogl/cogl.h> can be included directly."
|
|
#endif
|
|
|
|
#ifndef __COGL_ONSCREEN_H
|
|
#define __COGL_ONSCREEN_H
|
|
|
|
#include <cogl/cogl-context.h>
|
|
#include <cogl/cogl-framebuffer.h>
|
|
#include <glib.h>
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
typedef struct _CoglOnscreen CoglOnscreen;
|
|
#define COGL_ONSCREEN(X) ((CoglOnscreen *)(X))
|
|
|
|
CoglOnscreen *
|
|
cogl_onscreen_new (CoglContext *context, int width, int height);
|
|
|
|
#ifdef COGL_HAS_X11
|
|
typedef void (*CoglOnscreenX11MaskCallback) (CoglOnscreen *onscreen,
|
|
guint32 event_mask,
|
|
void *user_data);
|
|
|
|
/**
|
|
* cogl_x11_onscreen_set_foreign_window_xid:
|
|
* @onscreen: The unallocated framebuffer to associated with an X
|
|
* window.
|
|
* @xid: The XID of an existing X window
|
|
* @update: A callback that notifies of updates to what Cogl requires
|
|
* to be in the core X protocol event mask.
|
|
*
|
|
* Ideally we would recommend that you let Cogl be responsible for
|
|
* creating any X window required to back an onscreen framebuffer but
|
|
* if you really need to target a window created manually this
|
|
* function can be called before @onscreen has been allocated to set a
|
|
* foreign XID for your existing X window.
|
|
*
|
|
* Since Cogl needs, for example, to track changes to the size of an X
|
|
* window it requires that certain events be selected for via the core
|
|
* X protocol. This requirement may also be changed asynchronously so
|
|
* you must pass in an @update callback to inform you of Cogl's
|
|
* required event mask.
|
|
*
|
|
* For example if you are using Xlib you could use this API roughly
|
|
* as follows:
|
|
* [{
|
|
* static void
|
|
* my_update_cogl_x11_event_mask (CoglOnscreen *onscreen,
|
|
* guint32 event_mask,
|
|
* void *user_data)
|
|
* {
|
|
* XSetWindowAttributes attrs;
|
|
* MyData *data = user_data;
|
|
* attrs.event_mask = event_mask | data->my_event_mask;
|
|
* XChangeWindowAttributes (data->xdpy,
|
|
* data->xwin,
|
|
* CWEventMask,
|
|
* &attrs);
|
|
* }
|
|
*
|
|
* {
|
|
* *snip*
|
|
* cogl_x11_onscreen_set_foreign_window_xid (onscreen,
|
|
* data->xwin,
|
|
* my_update_cogl_x11_event_mask,
|
|
* data);
|
|
* *snip*
|
|
* }
|
|
* }]
|
|
*
|
|
* Since: 2.0
|
|
* Stability: Unstable
|
|
*/
|
|
#define cogl_x11_onscreen_set_foreign_window_xid \
|
|
cogl_x11_onscreen_set_foreign_window_xid_EXP
|
|
void
|
|
cogl_x11_onscreen_set_foreign_window_xid (CoglOnscreen *onscreen,
|
|
guint32 xid,
|
|
CoglOnscreenX11MaskCallback update,
|
|
void *user_data);
|
|
|
|
#define cogl_x11_onscreen_get_window_xid cogl_x11_onscreen_get_window_xid_EXP
|
|
guint32
|
|
cogl_x11_onscreen_get_window_xid (CoglOnscreen *onscreen);
|
|
|
|
#define cogl_x11_onscreen_get_visual_xid cogl_x11_onscreen_get_visual_xid_EXP
|
|
guint32
|
|
cogl_x11_onscreen_get_visual_xid (CoglOnscreen *onscreen);
|
|
#endif /* COGL_HAS_X11 */
|
|
|
|
#ifdef COGL_HAS_WIN32_SUPPORT
|
|
#define cogl_win32_onscreen_set_foreign_window \
|
|
cogl_win32_onscreen_set_foreign_window_EXP
|
|
void
|
|
cogl_win32_onscreen_set_foreign_window (CoglOnscreen *onscreen,
|
|
HWND hwnd);
|
|
|
|
#define cogl_win32_onscreen_get_window cogl_win32_onscreen_get_window_EXP
|
|
HWND
|
|
cogl_win32_onscreen_get_window (CoglOnscreen *onscreen);
|
|
#endif /* COGL_HAS_WIN32_SUPPORT */
|
|
|
|
#if defined (COGL_HAS_EGL_PLATFORM_WAYLAND_SUPPORT)
|
|
struct wl_surface *
|
|
cogl_wayland_onscreen_get_surface (CoglOnscreen *onscreen);
|
|
#endif /* COGL_HAS_EGL_PLATFORM_WAYLAND_SUPPORT */
|
|
|
|
#define cogl_onscreen_set_swap_throttled cogl_onscreen_set_swap_throttled_EXP
|
|
void
|
|
cogl_onscreen_set_swap_throttled (CoglOnscreen *onscreen,
|
|
gboolean throttled);
|
|
|
|
/**
|
|
* cogl_onscreen_show:
|
|
* @onscreen: The onscreen framebuffer to make visible
|
|
*
|
|
* This requests to make @onscreen visible to the user.
|
|
*
|
|
* Actually the precise semantics of this function depend on the
|
|
* window system currently in use, and if you don't have a
|
|
* multi-windowining system this function may in-fact do nothing.
|
|
*
|
|
* This function will implicitly allocate the given @onscreen
|
|
* framebuffer before showing it if it hasn't already been allocated.
|
|
*
|
|
* <note>Since Cogl doesn't explicitly track the visibility status of
|
|
* onscreen framebuffers it wont try to avoid redundant window system
|
|
* requests e.g. to show an already visible window. This also means
|
|
* that it's acceptable to alternatively use native APIs to show and
|
|
* hide windows without confusing Cogl.</note>
|
|
*
|
|
* Since: 2.0
|
|
* Stability: Unstable
|
|
*/
|
|
#define cogl_onscreen_show cogl_onscreen_show_EXP
|
|
void
|
|
cogl_onscreen_show (CoglOnscreen *onscreen);
|
|
|
|
/**
|
|
* cogl_onscreen_hide:
|
|
* @onscreen: The onscreen framebuffer to make invisible
|
|
*
|
|
* This requests to make @onscreen invisible to the user.
|
|
*
|
|
* Actually the precise semantics of this function depend on the
|
|
* window system currently in use, and if you don't have a
|
|
* multi-windowining system this function may in-fact do nothing.
|
|
*
|
|
* This function does not implicitly allocate the given @onscreen
|
|
* framebuffer before hiding it.
|
|
*
|
|
* <note>Since Cogl doesn't explicitly track the visibility status of
|
|
* onscreen framebuffers it wont try to avoid redundant window system
|
|
* requests e.g. to show an already visible window. This also means
|
|
* that it's acceptable to alternatively use native APIs to show and
|
|
* hide windows without confusing Cogl.</note>
|
|
*
|
|
* Since: 2.0
|
|
* Stability: Unstable
|
|
*/
|
|
#define cogl_onscreen_hide cogl_onscreen_hide_EXP
|
|
void
|
|
cogl_onscreen_hide (CoglOnscreen *onscreen);
|
|
|
|
/* XXX: Actually should this be renamed too cogl_onscreen_swap_buffers()? */
|
|
#define cogl_framebuffer_swap_buffers cogl_framebuffer_swap_buffers_EXP
|
|
/**
|
|
* cogl_framebuffer_swap_buffers:
|
|
* @framebuffer: A #CoglFramebuffer
|
|
*
|
|
* Swaps the current back buffer being rendered too, to the front for display.
|
|
*
|
|
* This function also implicitly discards the contents of the color, depth and
|
|
* stencil buffers as if cogl_framebuffer_discard_buffers() were used. The
|
|
* significance of the discard is that you should not expect to be able to
|
|
* start a new frame that incrementally builds on the contents of the previous
|
|
* frame.
|
|
*
|
|
* Since: 1.8
|
|
* Stability: unstable
|
|
*/
|
|
void
|
|
cogl_framebuffer_swap_buffers (CoglFramebuffer *framebuffer);
|
|
|
|
#define cogl_framebuffer_swap_region cogl_framebuffer_swap_region_EXP
|
|
/**
|
|
* cogl_framebuffer_swap_region:
|
|
* @framebuffer: A #CoglFramebuffer
|
|
* @rectangles: An array of integer 4-tuples representing rectangles as
|
|
* (x, y, width, height) tuples.
|
|
* @n_rectangles: The number of 4-tuples to be read from @rectangles
|
|
*
|
|
* Swaps a region of the back buffer being rendered too, to the front for
|
|
* display. @rectangles represents the region as array of @n_rectangles each
|
|
* defined by 4 sequential (x, y, width, height) integers.
|
|
*
|
|
* This function also implicitly discards the contents of the color, depth and
|
|
* stencil buffers as if cogl_framebuffer_discard_buffers() were used. The
|
|
* significance of the discard is that you should not expect to be able to
|
|
* start a new frame that incrementally builds on the contents of the previous
|
|
* frame.
|
|
*
|
|
* Since: 1.8
|
|
* Stability: unstable
|
|
*/
|
|
void
|
|
cogl_framebuffer_swap_region (CoglFramebuffer *framebuffer,
|
|
const int *rectangles,
|
|
int n_rectangles);
|
|
|
|
|
|
typedef void (*CoglSwapBuffersNotify) (CoglFramebuffer *framebuffer,
|
|
void *user_data);
|
|
|
|
#define cogl_framebuffer_add_swap_buffers_callback \
|
|
cogl_framebuffer_add_swap_buffers_callback_EXP
|
|
unsigned int
|
|
cogl_framebuffer_add_swap_buffers_callback (CoglFramebuffer *framebuffer,
|
|
CoglSwapBuffersNotify callback,
|
|
void *user_data);
|
|
|
|
#define cogl_framebuffer_remove_swap_buffers_callback \
|
|
cogl_framebuffer_remove_swap_buffers_callback_EXP
|
|
void
|
|
cogl_framebuffer_remove_swap_buffers_callback (CoglFramebuffer *framebuffer,
|
|
unsigned int id);
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __COGL_ONSCREEN_H */
|