mutter/cogl/cogl-onscreen.c
Adel Gadllah 860fb00fdc cogl-onscreen: Add buffer_age support
Add a new BUFFER_AGE winsys feature and a get_buffer_age method to
cogl-onscreen that allows to query the value.

https://bugzilla.gnome.org/show_bug.cgi?id=669122

Reviewed-by: Neil Roberts <neil@linux.intel.com>
Reviewed-by: Robert Bragg <robert@linux.intel.com>

Note: When landing the patch I made some gtk-doc updates and changed
_get_buffer_age to return an age of 0 always if the age feature isn't
support instead of using _COGL_RETURN_VAL_IF_FAIL. -- Robert Bragg

(cherry picked from commit 427b1038051e9b53a071d8c229b363b075bb1dc0)
2013-01-23 17:58:10 +00:00

471 lines
14 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/>.
*
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "cogl-util.h"
#include "cogl-onscreen-private.h"
#include "cogl-framebuffer-private.h"
#include "cogl-onscreen-template-private.h"
#include "cogl-context-private.h"
#include "cogl-object-private.h"
#include "cogl1-context.h"
static void _cogl_onscreen_free (CoglOnscreen *onscreen);
COGL_OBJECT_DEFINE_WITH_CODE (Onscreen, onscreen,
_cogl_onscreen_class.virt_unref =
_cogl_framebuffer_unref);
static void
_cogl_onscreen_init_from_template (CoglOnscreen *onscreen,
CoglOnscreenTemplate *onscreen_template)
{
CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
COGL_TAILQ_INIT (&onscreen->swap_callbacks);
COGL_TAILQ_INIT (&onscreen->resize_callbacks);
framebuffer->config = onscreen_template->config;
cogl_object_ref (framebuffer->config.swap_chain);
}
/* XXX: While we still have backend in Clutter we need a dummy object
* to represent the CoglOnscreen framebuffer that the backend
* creates... */
CoglOnscreen *
_cogl_onscreen_new (void)
{
CoglOnscreen *onscreen = g_new0 (CoglOnscreen, 1);
_COGL_GET_CONTEXT (ctx, NULL);
_cogl_framebuffer_init (COGL_FRAMEBUFFER (onscreen),
ctx,
COGL_FRAMEBUFFER_TYPE_ONSCREEN,
COGL_PIXEL_FORMAT_RGBA_8888_PRE,
0x1eadbeef, /* width */
0x1eadbeef); /* height */
/* NB: make sure to pass positive width/height numbers here
* because otherwise we'll hit input validation assertions!*/
_cogl_onscreen_init_from_template (onscreen, ctx->display->onscreen_template);
COGL_FRAMEBUFFER (onscreen)->allocated = TRUE;
/* XXX: Note we don't initialize onscreen->winsys in this case. */
return _cogl_onscreen_object_new (onscreen);
}
CoglOnscreen *
cogl_onscreen_new (CoglContext *ctx, int width, int height)
{
CoglOnscreen *onscreen;
/* FIXME: We are assuming onscreen buffers will always be
premultiplied so we'll set the premult flag on the bitmap
format. This will usually be correct because the result of the
default blending operations for Cogl ends up with premultiplied
data in the framebuffer. However it is possible for the
framebuffer to be in whatever format depending on what
CoglPipeline is used to render to it. Eventually we may want to
add a way for an application to inform Cogl that the framebuffer
is not premultiplied in case it is being used for some special
purpose. */
onscreen = g_new0 (CoglOnscreen, 1);
_cogl_framebuffer_init (COGL_FRAMEBUFFER (onscreen),
ctx,
COGL_FRAMEBUFFER_TYPE_ONSCREEN,
COGL_PIXEL_FORMAT_RGBA_8888_PRE,
width, /* width */
height); /* height */
_cogl_onscreen_init_from_template (onscreen, ctx->display->onscreen_template);
return _cogl_onscreen_object_new (onscreen);
}
static void
_cogl_onscreen_free (CoglOnscreen *onscreen)
{
CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
const CoglWinsysVtable *winsys = _cogl_framebuffer_get_winsys (framebuffer);
CoglResizeNotifyEntry *resize_entry;
CoglSwapBuffersNotifyEntry *swap_entry;
while ((resize_entry = COGL_TAILQ_FIRST (&onscreen->resize_callbacks)))
{
COGL_TAILQ_REMOVE (&onscreen->resize_callbacks, resize_entry, list_node);
g_slice_free (CoglResizeNotifyEntry, resize_entry);
}
while ((swap_entry = COGL_TAILQ_FIRST (&onscreen->swap_callbacks)))
{
COGL_TAILQ_REMOVE (&onscreen->swap_callbacks, swap_entry, list_node);
g_slice_free (CoglSwapBuffersNotifyEntry, swap_entry);
}
if (framebuffer->context->window_buffer == COGL_FRAMEBUFFER (onscreen))
framebuffer->context->window_buffer = NULL;
winsys->onscreen_deinit (onscreen);
_COGL_RETURN_IF_FAIL (onscreen->winsys == NULL);
/* Chain up to parent */
_cogl_framebuffer_free (framebuffer);
g_free (onscreen);
}
void
cogl_onscreen_swap_buffers (CoglOnscreen *onscreen)
{
CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
const CoglWinsysVtable *winsys;
_COGL_RETURN_IF_FAIL (framebuffer->type == COGL_FRAMEBUFFER_TYPE_ONSCREEN);
/* FIXME: we shouldn't need to flush *all* journals here! */
cogl_flush ();
winsys = _cogl_framebuffer_get_winsys (framebuffer);
winsys->onscreen_swap_buffers (COGL_ONSCREEN (framebuffer));
cogl_framebuffer_discard_buffers (framebuffer,
COGL_BUFFER_BIT_COLOR |
COGL_BUFFER_BIT_DEPTH |
COGL_BUFFER_BIT_STENCIL);
}
void
cogl_onscreen_swap_region (CoglOnscreen *onscreen,
const int *rectangles,
int n_rectangles)
{
CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
const CoglWinsysVtable *winsys;
_COGL_RETURN_IF_FAIL (framebuffer->type == COGL_FRAMEBUFFER_TYPE_ONSCREEN);
/* FIXME: we shouldn't need to flush *all* journals here! */
cogl_flush ();
winsys = _cogl_framebuffer_get_winsys (framebuffer);
/* This should only be called if the winsys advertises
COGL_WINSYS_FEATURE_SWAP_REGION */
_COGL_RETURN_IF_FAIL (winsys->onscreen_swap_region != NULL);
winsys->onscreen_swap_region (COGL_ONSCREEN (framebuffer),
rectangles,
n_rectangles);
cogl_framebuffer_discard_buffers (framebuffer,
COGL_BUFFER_BIT_COLOR |
COGL_BUFFER_BIT_DEPTH |
COGL_BUFFER_BIT_STENCIL);
}
int
cogl_onscreen_get_buffer_age (CoglOnscreen *onscreen)
{
CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
const CoglWinsysVtable *winsys;
_COGL_RETURN_VAL_IF_FAIL (framebuffer->type == COGL_FRAMEBUFFER_TYPE_ONSCREEN, 0);
winsys = _cogl_framebuffer_get_winsys (framebuffer);
if (!winsys->onscreen_get_buffer_age)
return 0;
return winsys->onscreen_get_buffer_age (onscreen);
}
#ifdef COGL_HAS_X11_SUPPORT
void
cogl_x11_onscreen_set_foreign_window_xid (CoglOnscreen *onscreen,
uint32_t xid,
CoglOnscreenX11MaskCallback update,
void *user_data)
{
/* We don't wan't applications to get away with being lazy here and not
* passing an update callback... */
_COGL_RETURN_IF_FAIL (update);
onscreen->foreign_xid = xid;
onscreen->foreign_update_mask_callback = update;
onscreen->foreign_update_mask_data = user_data;
}
uint32_t
cogl_x11_onscreen_get_window_xid (CoglOnscreen *onscreen)
{
CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
if (onscreen->foreign_xid)
return onscreen->foreign_xid;
else
{
const CoglWinsysVtable *winsys = _cogl_framebuffer_get_winsys (framebuffer);
/* This should only be called for x11 onscreens */
_COGL_RETURN_VAL_IF_FAIL (winsys->onscreen_x11_get_window_xid != NULL, 0);
return winsys->onscreen_x11_get_window_xid (onscreen);
}
}
uint32_t
cogl_x11_onscreen_get_visual_xid (CoglOnscreen *onscreen)
{
CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
const CoglWinsysVtable *winsys = _cogl_framebuffer_get_winsys (framebuffer);
XVisualInfo *visinfo;
uint32_t id;
/* This should only be called for xlib based onscreens */
_COGL_RETURN_VAL_IF_FAIL (winsys->xlib_get_visual_info != NULL, 0);
visinfo = winsys->xlib_get_visual_info ();
id = (uint32_t)visinfo->visualid;
XFree (visinfo);
return id;
}
#endif /* COGL_HAS_X11_SUPPORT */
#ifdef COGL_HAS_WIN32_SUPPORT
void
cogl_win32_onscreen_set_foreign_window (CoglOnscreen *onscreen,
HWND hwnd)
{
onscreen->foreign_hwnd = hwnd;
}
HWND
cogl_win32_onscreen_get_window (CoglOnscreen *onscreen)
{
if (onscreen->foreign_hwnd)
return onscreen->foreign_hwnd;
else
{
CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
const CoglWinsysVtable *winsys =
_cogl_framebuffer_get_winsys (framebuffer);
/* This should only be called for win32 onscreens */
_COGL_RETURN_VAL_IF_FAIL (winsys->onscreen_win32_get_window != NULL, 0);
return winsys->onscreen_win32_get_window (onscreen);
}
}
#endif /* COGL_HAS_WIN32_SUPPORT */
unsigned int
cogl_onscreen_add_swap_buffers_callback (CoglOnscreen *onscreen,
CoglSwapBuffersNotify callback,
void *user_data)
{
CoglSwapBuffersNotifyEntry *entry = g_slice_new0 (CoglSwapBuffersNotifyEntry);
static int next_swap_buffers_callback_id = 0;
entry->callback = callback;
entry->user_data = user_data;
entry->id = next_swap_buffers_callback_id++;
COGL_TAILQ_INSERT_TAIL (&onscreen->swap_callbacks, entry, list_node);
return entry->id;
}
void
cogl_onscreen_remove_swap_buffers_callback (CoglOnscreen *onscreen,
unsigned int id)
{
CoglSwapBuffersNotifyEntry *entry;
COGL_TAILQ_FOREACH (entry, &onscreen->swap_callbacks, list_node)
{
if (entry->id == id)
{
COGL_TAILQ_REMOVE (&onscreen->swap_callbacks, entry, list_node);
g_slice_free (CoglSwapBuffersNotifyEntry, entry);
break;
}
}
}
void
cogl_onscreen_set_swap_throttled (CoglOnscreen *onscreen,
CoglBool throttled)
{
CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
framebuffer->config.swap_throttled = throttled;
if (framebuffer->allocated)
{
const CoglWinsysVtable *winsys =
_cogl_framebuffer_get_winsys (framebuffer);
winsys->onscreen_update_swap_throttled (onscreen);
}
}
void
cogl_onscreen_show (CoglOnscreen *onscreen)
{
CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
const CoglWinsysVtable *winsys;
if (!framebuffer->allocated)
{
if (!cogl_framebuffer_allocate (framebuffer, NULL))
return;
}
winsys = _cogl_framebuffer_get_winsys (framebuffer);
if (winsys->onscreen_set_visibility)
winsys->onscreen_set_visibility (onscreen, TRUE);
}
void
cogl_onscreen_hide (CoglOnscreen *onscreen)
{
CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
if (framebuffer->allocated)
{
const CoglWinsysVtable *winsys =
_cogl_framebuffer_get_winsys (framebuffer);
if (winsys->onscreen_set_visibility)
winsys->onscreen_set_visibility (onscreen, FALSE);
}
}
void
_cogl_onscreen_notify_swap_buffers (CoglOnscreen *onscreen)
{
CoglSwapBuffersNotifyEntry *entry, *tmp;
COGL_TAILQ_FOREACH_SAFE (entry,
&onscreen->swap_callbacks,
list_node,
tmp)
entry->callback (COGL_FRAMEBUFFER (onscreen), entry->user_data);
}
void
_cogl_onscreen_notify_resize (CoglOnscreen *onscreen)
{
CoglResizeNotifyEntry *entry, *tmp;
CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
COGL_TAILQ_FOREACH_SAFE (entry,
&onscreen->resize_callbacks,
list_node,
tmp)
entry->callback (onscreen,
framebuffer->width,
framebuffer->height,
entry->user_data);
}
void
_cogl_framebuffer_winsys_update_size (CoglFramebuffer *framebuffer,
int width, int height)
{
if (framebuffer->width == width && framebuffer->height == height)
return;
framebuffer->width = width;
framebuffer->height = height;
cogl_framebuffer_set_viewport (framebuffer, 0, 0, width, height);
}
void
cogl_onscreen_set_resizable (CoglOnscreen *onscreen,
CoglBool resizable)
{
CoglFramebuffer *framebuffer;
const CoglWinsysVtable *winsys;
if (onscreen->resizable == resizable)
return;
onscreen->resizable = resizable;
framebuffer = COGL_FRAMEBUFFER (onscreen);
if (framebuffer->allocated)
{
winsys = _cogl_framebuffer_get_winsys (COGL_FRAMEBUFFER (onscreen));
if (winsys->onscreen_set_resizable)
winsys->onscreen_set_resizable (onscreen, resizable);
}
}
CoglBool
cogl_onscreen_get_resizable (CoglOnscreen *onscreen)
{
return onscreen->resizable;
}
unsigned int
cogl_onscreen_add_resize_handler (CoglOnscreen *onscreen,
CoglOnscreenResizeCallback callback,
void *user_data)
{
CoglResizeNotifyEntry *entry = g_slice_new (CoglResizeNotifyEntry);
static int next_resize_callback_id = 0;
entry->callback = callback;
entry->user_data = user_data;
entry->id = next_resize_callback_id++;
COGL_TAILQ_INSERT_TAIL (&onscreen->resize_callbacks, entry, list_node);
return entry->id;
}
void
cogl_onscreen_remove_resize_handler (CoglOnscreen *onscreen,
unsigned int id)
{
CoglResizeNotifyEntry *entry;
COGL_TAILQ_FOREACH (entry, &onscreen->resize_callbacks, list_node)
{
if (entry->id == id)
{
COGL_TAILQ_REMOVE (&onscreen->resize_callbacks, entry, list_node);
g_slice_free (CoglResizeNotifyEntry, entry);
break;
}
}
}