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onscreen: Add CoglFrameInfo and _add_frame_callback() api

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Add a CoglFrameInfo object that tracks timing information for frames
that are drawn. We track a frame counter and frame timing information
for each CoglOnscreen. Internally a CoglFrameInfo is automatically
created for each frame, delimited by cogl_onscreen_swap_buffers() or
cogl_onscreen_swap_region() calls.

CoglFrameInfos are delivered to applications via frame event callbacks
that can be registered with a new cogl_onscreen_add_frame_callback()
api. Two initial event types (dispatched on all platforms) have been
defined; a _SYNC event used for throttling the frame rate of
applications and a _COMPLETE event used so signify the end of a frame.

Note: This new _add_frame_callback() api makes the
cogl_onscreen_add_swap_complete_callback() api redundant and so it
should be considered deprecated. Since the _add_swap_complete_callback()
api is still experimental api, we will be looking to quickly migrate
users to the new api so we can remove the old api.

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

(cherry picked from commit 700401667db2522045e4623d78797b17f9184501)
This commit is contained in:
Owen W. Taylor 2012-11-12 11:58:10 -05:00 committed by Robert Bragg
parent 5ce058c0e5
commit 24733abf68
20 changed files with 972 additions and 69 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
cogl/Makefile.am
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@ -112,6 +112,7 @@ cogl_experimental_h = \
$(srcdir)/cogl-clip-state.h \
$(srcdir)/cogl-framebuffer.h \
$(srcdir)/cogl-onscreen.h \
$(srcdir)/cogl-frame-info.h \
$(srcdir)/cogl-vector.h \
$(srcdir)/cogl-euler.h \
$(srcdir)/cogl-output.h \
@ -384,6 +385,8 @@ cogl_sources_c = \
$(srcdir)/cogl-spans.c \
$(srcdir)/cogl-journal-private.h \
$(srcdir)/cogl-journal.c \
$(srcdir)/cogl-frame-info-private.h \
$(srcdir)/cogl-frame-info.c \
$(srcdir)/cogl-framebuffer-private.h \
$(srcdir)/cogl-framebuffer.c \
$(srcdir)/cogl-onscreen-private.h \

6
cogl/cogl-context-private.h
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@ -50,6 +50,7 @@
#include "cogl-gpu-info-private.h"
#include "cogl-gl-header.h"
#include "cogl-framebuffer-private.h"
#include "cogl-onscreen-private.h"
typedef struct
{
@ -190,6 +191,11 @@ struct _CoglContext
gboolean have_last_offscreen_allocate_flags;
CoglOffscreenAllocateFlags last_offscreen_allocate_flags;
GHashTable *swap_callback_closures;
int next_swap_callback_id;
CoglOnscreenEventList onscreen_events_queue;
CoglGLES2Context *current_gles2_context;
GQueue gles2_context_stack;

8
cogl/cogl-context.c
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@ -312,6 +312,11 @@ cogl_context_new (CoglDisplay *display,
context->current_draw_buffer_state_flushed = 0;
context->current_draw_buffer_changes = COGL_FRAMEBUFFER_STATE_ALL;
context->swap_callback_closures =
g_hash_table_new (g_direct_hash, g_direct_equal);
COGL_TAILQ_INIT (&context->onscreen_events_queue);
g_queue_init (&context->gles2_context_stack);
context->journal_flush_attributes_array =
@ -507,6 +512,9 @@ _cogl_context_free (CoglContext *context)
if (context->blit_texture_pipeline)
cogl_object_unref (context->blit_texture_pipeline);
if (context->swap_callback_closures)
g_hash_table_destroy (context->swap_callback_closures);
g_warn_if_fail (context->gles2_context_stack.length == 0);
if (context->journal_flush_attributes_array)

3
cogl/cogl-context.h
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@ -208,6 +208,8 @@ cogl_is_context (void *object);
* suported.
* @COGL_FEATURE_ID_DEPTH_TEXTURE: Whether #CoglFramebuffer support rendering
* the depth buffer to a texture.
* @COGL_FEATURE_ID_PRESENTATION_TIME: Whether frame presentation
* time stamps will be recorded in #CoglFrameInfo objects.
*
* All the capabilities that can vary between different GPUs supported
* by Cogl. Applications that depend on any of these features should explicitly
@ -237,6 +239,7 @@ typedef enum _CoglFeatureID
COGL_FEATURE_ID_SWAP_BUFFERS_EVENT,
COGL_FEATURE_ID_GLES2_CONTEXT,
COGL_FEATURE_ID_DEPTH_TEXTURE,
COGL_FEATURE_ID_PRESENTATION_TIME,
/*< private >*/
_COGL_N_FEATURE_IDS /*< skip >*/

43
cogl/cogl-frame-info-private.h Normal file
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@ -0,0 +1,43 @@
/*
* Cogl
*
* An object oriented GL/GLES Abstraction/Utility Layer
*
* Copyright (C) 2012 Red Hat, Inc.
*
* 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/>.
*
*
*/
#ifndef __COGL_FRAME_INFO_PRIVATE_H
#define __COGL_FRAME_INFO_PRIVATE_H
#include "cogl-frame-info.h"
#include "cogl-object-private.h"
struct _CoglFrameInfo
{
CoglObject _parent;
int64_t frame_counter;
int64_t presentation_time;
float refresh_rate;
CoglOutput *output;
};
CoglFrameInfo *_cogl_frame_info_new (void);
#endif /* __COGL_FRAME_INFO_PRIVATE_H */

72
cogl/cogl-frame-info.c Normal file
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@ -0,0 +1,72 @@
/*
* Cogl
*
* An object oriented GL/GLES Abstraction/Utility Layer
*
* Copyright (C) 2012 Red Hat, Inc.
*
* 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-frame-info-private.h"
static void _cogl_frame_info_free (CoglFrameInfo *info);
COGL_OBJECT_DEFINE (FrameInfo, frame_info);
CoglFrameInfo *
_cogl_frame_info_new (void)
{
CoglFrameInfo *info;
info = g_slice_new0 (CoglFrameInfo);
return _cogl_frame_info_object_new (info);
}
static void
_cogl_frame_info_free (CoglFrameInfo *info)
{
g_slice_free (CoglFrameInfo, info);
}
int64_t
cogl_frame_info_get_frame_counter (CoglFrameInfo *info)
{
return info->frame_counter;
}
int64_t
cogl_frame_info_get_presentation_time (CoglFrameInfo *info)
{
return info->presentation_time;
}
float
cogl_frame_info_get_refresh_rate (CoglFrameInfo *info)
{
return info->refresh_rate;
}
CoglOutput *
cogl_frame_info_get_output (CoglFrameInfo *info)
{
return info->output;
}

129
cogl/cogl-frame-info.h Normal file
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@ -0,0 +1,129 @@
/*
* Cogl
*
* An object oriented GL/GLES Abstraction/Utility Layer
*
* Copyright (C) 2012 Red Hat, Inc.
*
* 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:
* Owen Taylor <otaylor@redhat.com>
*/
#if !defined(__COGL_H_INSIDE__) && !defined(COGL_COMPILATION)
#error "Only <cogl/cogl.h> can be included directly."
#endif
#ifndef __COGL_FRAME_INFO_H
#define __COGL_FRAME_INFO_H
#include <cogl/cogl-types.h>
#include <cogl/cogl-output.h>
#include <glib.h>
G_BEGIN_DECLS
typedef struct _CoglFrameInfo CoglFrameInfo;
#define COGL_FRAME_INFO(X) ((CoglFrameInfo *)(X))
/**
* cogl_is_frame_info:
* @object: A #CoglObject pointer
*
* Gets whether the given object references a #CoglFrameInfo.
*
* Return value: %TRUE if the object references a #CoglFrameInfo
* and %FALSE otherwise.
* Since: 2.0
* Stability: unstable
*/
CoglBool
cogl_is_frame_info (void *object);
/**
* cogl_frame_info_get_frame_counter:
* @info: a #CoglFrameInfo object
*
* Gets the frame counter for the #CoglOnscreen that corresponds
* to this frame.
*
* Return value: The frame counter value
* Since: 1.14
* Stability: unstable
*/
int64_t cogl_frame_info_get_frame_counter (CoglFrameInfo *info);
/**
* cogl_frame_info_get_presentation_time:
* @info: a #CoglFrameInfo object
*
* Gets the presentation time for the frame. This is the time at which
* the frame became visible to the user.
*
* The presentation time measured in nanoseconds is based on a
* monotonic time source. The time source is not necessarily
* correlated with system/wall clock time and may represent the time
* elapsed since some undefined system event such as when the system
* last booted.
*
* <note>Linux kernel version less that 3.8 can result in
* non-monotonic timestamps being reported when using a drm based
* OpenGL driver. Also some buggy Mesa drivers up to 9.0.1 may also
* incorrectly report non-monotonic timestamps.</note>
*
* Return value: the presentation time for the frame
* Since: 1.14
* Stability: unstable
*/
int64_t cogl_frame_info_get_presentation_time (CoglFrameInfo *info);
/**
* cogl_frame_info_get_refresh_rate:
* @info: a #CoglFrameInfo object
*
* Gets the refresh rate in Hertz for the output that the frame was on
* at the time the frame was presented.
*
* <note>Some platforms can't associate a #CoglOutput with a
* #CoglFrameInfo object but are able to report a refresh rate via
* this api. Therefore if you need this information then this api is
* more reliable than using cogl_frame_info_get_output() followed by
* cogl_output_get_refresh_rate().</note>
*
* Return value: the refresh rate in Hertz
* Since: 1.14
* Stability: unstable
*/
float cogl_frame_info_get_refresh_rate (CoglFrameInfo *info);
/**
* cogl_frame_info_get_output:
* @info: a #CoglFrameInfo object
*
* Gets the #CoglOutput that the swapped frame was presented to.
*
* Return value: The #CoglOutput that the frame was presented to, or
* %NULL if this could not be determined.
* Since: 1.14
* Stability: unstable
*/
CoglOutput *
cogl_frame_info_get_output (CoglFrameInfo *info);
G_END_DECLS
#endif /* __COGL_FRAME_INFO_H */

3
cogl/cogl-glx-display-private.h
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@ -50,7 +50,8 @@ typedef struct _CoglGLXDisplay
GLXContext glx_context;
GLXWindow dummy_glxwin;
Window dummy_xwin;
CoglBool pending_swap_notify;
CoglBool pending_sync_notify;
CoglBool pending_complete_notify;
CoglBool pending_resize_notify;
} CoglGLXDisplay;

9
cogl/cogl-glx-renderer-private.h
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@ -42,6 +42,15 @@ typedef struct _CoglGLXRenderer
/* Vblank stuff */
int dri_fd;
/* enumeration with relatioship between OML_sync_control
* UST (unadjusted-system-time) and the system clock */
enum {
COGL_GLX_UST_IS_UNKNOWN,
COGL_GLX_UST_IS_GETTIMEOFDAY,
COGL_GLX_UST_IS_MONOTONIC_TIME,
COGL_GLX_UST_IS_OTHER
} ust_type;
/* GModule pointing to libGL which we use to get glX functions out of */
GModule *libgl_module;

43
cogl/cogl-onscreen-private.h
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@ -24,6 +24,7 @@
#ifndef __COGL_ONSCREEN_PRIVATE_H
#define __COGL_ONSCREEN_PRIVATE_H
#include "cogl-onscreen.h"
#include "cogl-framebuffer-private.h"
#include "cogl-queue.h"
@ -33,17 +34,16 @@
#include <windows.h>
#endif
typedef struct _CoglSwapBuffersNotifyEntry CoglSwapBuffersNotifyEntry;
COGL_TAILQ_HEAD (CoglFrameCallbackList, CoglFrameClosure);
COGL_TAILQ_HEAD (CoglSwapBuffersNotifyList, CoglSwapBuffersNotifyEntry);
struct _CoglSwapBuffersNotifyEntry
struct _CoglFrameClosure
{
COGL_TAILQ_ENTRY (CoglSwapBuffersNotifyEntry) list_node;
COGL_TAILQ_ENTRY (CoglFrameClosure) list_node;
CoglFrameCallback callback;
CoglSwapBuffersNotify callback;
void *user_data;
unsigned int id;
CoglUserDataDestroyCallback destroy;
};
typedef struct _CoglResizeNotifyEntry CoglResizeNotifyEntry;
@ -59,6 +59,19 @@ struct _CoglResizeNotifyEntry
unsigned int id;
};
typedef struct _CoglOnscreenEvent CoglOnscreenEvent;
COGL_TAILQ_HEAD (CoglOnscreenEventList, CoglOnscreenEvent);
struct _CoglOnscreenEvent
{
COGL_TAILQ_ENTRY (CoglOnscreenEvent) list_node;
CoglOnscreen *onscreen;
CoglFrameInfo *info;
CoglFrameEvent type;
};
struct _CoglOnscreen
{
CoglFramebuffer _parent;
@ -75,11 +88,17 @@ struct _CoglOnscreen
CoglBool swap_throttled;
CoglSwapBuffersNotifyList swap_callbacks;
CoglFrameCallbackList frame_closures;
CoglBool resizable;
CoglResizeNotifyList resize_callbacks;
int64_t frame_counter;
int64_t swap_frame_counter; /* frame counter at last all to
* cogl_onscreen_swap_region() or
* cogl_onscreen_swap_buffers() */
GQueue pending_frame_infos;
void *winsys;
};
@ -91,9 +110,15 @@ _cogl_framebuffer_winsys_update_size (CoglFramebuffer *framebuffer,
int width, int height);
void
_cogl_onscreen_notify_swap_buffers (CoglOnscreen *onscreen);
_cogl_onscreen_notify_frame_sync (CoglOnscreen *onscreen, CoglFrameInfo *info);
void
_cogl_onscreen_notify_complete (CoglOnscreen *onscreen, CoglFrameInfo *info);
void
_cogl_onscreen_notify_resize (CoglOnscreen *onscreen);
void
_cogl_dispatch_onscreen_events (CoglContext *context);
#endif /* __COGL_ONSCREEN_PRIVATE_H */

237
cogl/cogl-onscreen.c
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@ -27,6 +27,7 @@
#include "cogl-util.h"
#include "cogl-onscreen-private.h"
#include "cogl-frame-info-private.h"
#include "cogl-framebuffer-private.h"
#include "cogl-onscreen-template-private.h"
#include "cogl-context-private.h"
@ -45,7 +46,7 @@ _cogl_onscreen_init_from_template (CoglOnscreen *onscreen,
{
CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
COGL_TAILQ_INIT (&onscreen->swap_callbacks);
COGL_TAILQ_INIT (&onscreen->frame_closures);
COGL_TAILQ_INIT (&onscreen->resize_callbacks);
framebuffer->config = onscreen_template->config;
@ -115,7 +116,8 @@ _cogl_onscreen_free (CoglOnscreen *onscreen)
CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
const CoglWinsysVtable *winsys = _cogl_framebuffer_get_winsys (framebuffer);
CoglResizeNotifyEntry *resize_entry;
CoglSwapBuffersNotifyEntry *swap_entry;
CoglFrameClosure *frame_closure;
CoglFrameInfo *frame_info;
while ((resize_entry = COGL_TAILQ_FIRST (&onscreen->resize_callbacks)))
{
@ -123,12 +125,20 @@ _cogl_onscreen_free (CoglOnscreen *onscreen)
g_slice_free (CoglResizeNotifyEntry, resize_entry);
}
while ((swap_entry = COGL_TAILQ_FIRST (&onscreen->swap_callbacks)))
while ((frame_closure = COGL_TAILQ_FIRST (&onscreen->frame_closures)))
{
COGL_TAILQ_REMOVE (&onscreen->swap_callbacks, swap_entry, list_node);
g_slice_free (CoglSwapBuffersNotifyEntry, swap_entry);
COGL_TAILQ_REMOVE (&onscreen->frame_closures, frame_closure, list_node);
if (frame_closure->destroy)
frame_closure->destroy (frame_closure->user_data);
g_slice_free (CoglFrameClosure, frame_closure);
}
while ((frame_info = g_queue_pop_tail (&onscreen->pending_frame_infos)))
cogl_object_unref (frame_info);
g_queue_clear (&onscreen->pending_frame_infos);
if (framebuffer->context->window_buffer == COGL_FRAMEBUFFER (onscreen))
framebuffer->context->window_buffer = NULL;
@ -141,22 +151,60 @@ _cogl_onscreen_free (CoglOnscreen *onscreen)
g_free (onscreen);
}
static void
_cogl_onscreen_queue_event (CoglOnscreen *onscreen,
CoglFrameEvent type,
CoglFrameInfo *info)
{
CoglContext *ctx = COGL_FRAMEBUFFER (onscreen)->context;
CoglOnscreenEvent *event = g_slice_new (CoglOnscreenEvent);
event->onscreen = cogl_object_ref (onscreen);
event->info = cogl_object_ref (info);
event->type = type;
COGL_TAILQ_INSERT_TAIL (&ctx->onscreen_events_queue, event, list_node);
}
void
cogl_onscreen_swap_buffers (CoglOnscreen *onscreen)
{
CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
const CoglWinsysVtable *winsys;
CoglFrameInfo *info;
_COGL_RETURN_IF_FAIL (framebuffer->type == COGL_FRAMEBUFFER_TYPE_ONSCREEN);
info = _cogl_frame_info_new ();
info->frame_counter = onscreen->frame_counter;
g_queue_push_tail (&onscreen->pending_frame_infos, info);
/* 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);
if (!_cogl_winsys_has_feature (COGL_WINSYS_FEATURE_SYNC_AND_COMPLETE_EVENT))
{
CoglFrameInfo *info;
g_warn_if_fail (onscreen->pending_frame_infos.length == 1);
info = g_queue_pop_tail (&onscreen->pending_frame_infos);
_cogl_onscreen_queue_event (onscreen, COGL_FRAME_EVENT_SYNC, info);
_cogl_onscreen_queue_event (onscreen, COGL_FRAME_EVENT_COMPLETE, info);
cogl_object_unref (info);
}
onscreen->frame_counter++;
}
void
@ -166,9 +214,14 @@ cogl_onscreen_swap_region (CoglOnscreen *onscreen,
{
CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
const CoglWinsysVtable *winsys;
CoglFrameInfo *info;
_COGL_RETURN_IF_FAIL (framebuffer->type == COGL_FRAMEBUFFER_TYPE_ONSCREEN);
info = _cogl_frame_info_new ();
info->frame_counter = onscreen->frame_counter;
g_queue_push_tail (&onscreen->pending_frame_infos, info);
/* FIXME: we shouldn't need to flush *all* journals here! */
cogl_flush ();
@ -186,6 +239,22 @@ cogl_onscreen_swap_region (CoglOnscreen *onscreen,
COGL_BUFFER_BIT_COLOR |
COGL_BUFFER_BIT_DEPTH |
COGL_BUFFER_BIT_STENCIL);
if (!_cogl_winsys_has_feature (COGL_WINSYS_FEATURE_SYNC_AND_COMPLETE_EVENT))
{
CoglFrameInfo *info;
g_warn_if_fail (onscreen->pending_frame_infos.length == 1);
info = g_queue_pop_tail (&onscreen->pending_frame_infos);
_cogl_onscreen_queue_event (onscreen, COGL_FRAME_EVENT_SYNC, info);
_cogl_onscreen_queue_event (onscreen, COGL_FRAME_EVENT_COMPLETE, info);
cogl_object_unref (info);
}
onscreen->frame_counter++;
}
int
@ -286,38 +355,107 @@ cogl_win32_onscreen_get_window (CoglOnscreen *onscreen)
#endif /* COGL_HAS_WIN32_SUPPORT */
CoglFrameClosure *
cogl_onscreen_add_frame_callback (CoglOnscreen *onscreen,
CoglFrameCallback callback,
void *user_data,
CoglUserDataDestroyCallback destroy)
{
CoglFrameClosure *closure = g_slice_new0 (CoglFrameClosure);
closure->callback = callback;
closure->user_data = user_data;
closure->destroy = destroy;
COGL_TAILQ_INSERT_TAIL (&onscreen->frame_closures, closure, list_node);
return closure;
}
void
cogl_onscreen_remove_frame_callback (CoglOnscreen *onscreen,
CoglFrameClosure *closure)
{
_COGL_RETURN_IF_FAIL (closure);
if (closure->destroy)
closure->destroy (closure->user_data);
COGL_TAILQ_REMOVE (&onscreen->frame_closures, closure, list_node);
g_slice_free (CoglFrameClosure, closure);
}
typedef struct _SwapBufferCallbackState
{
CoglSwapBuffersNotify callback;
void *user_data;
} SwapBufferCallbackState;
static void
destroy_swap_buffers_callback_state (void *user_data)
{
g_slice_free (SwapBufferCallbackState, user_data);
}
static void
shim_swap_buffers_callback (CoglOnscreen *onscreen,
CoglFrameEvent event,
CoglFrameInfo *info,
void *user_data)
{
SwapBufferCallbackState *state = user_data;
/* XXX: Note that technically it is a change in semantics for this
* interface to forward _SYNC events here and also makes the api
* name somewhat missleading.
*
* In practice though this interface is currently used by
* applications for throttling, not because they are strictly
* interested in knowing when a frame has been presented and so
* forwarding _SYNC events should serve them better.
*/
if (event == COGL_FRAME_EVENT_SYNC)
state->callback (COGL_FRAMEBUFFER (onscreen), state->user_data);
}
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;
CoglContext *ctx = COGL_FRAMEBUFFER (onscreen)->context;
SwapBufferCallbackState *state = g_slice_new (SwapBufferCallbackState);
CoglFrameClosure *closure;
unsigned int id = ctx->next_swap_callback_id++;
entry->callback = callback;
entry->user_data = user_data;
entry->id = next_swap_buffers_callback_id++;
state->callback = callback;
state->user_data = user_data;
COGL_TAILQ_INSERT_TAIL (&onscreen->swap_callbacks, entry, list_node);
closure =
cogl_onscreen_add_frame_callback (onscreen,
shim_swap_buffers_callback,
state,
destroy_swap_buffers_callback_state);
return entry->id;
g_hash_table_insert (ctx->swap_callback_closures,
GINT_TO_POINTER (id),
closure);
return id;
}
void
cogl_onscreen_remove_swap_buffers_callback (CoglOnscreen *onscreen,
unsigned int id)
{
CoglSwapBuffersNotifyEntry *entry;
CoglContext *ctx = COGL_FRAMEBUFFER (onscreen)->context;
CoglFrameClosure *closure = g_hash_table_lookup (ctx->swap_callback_closures,
GINT_TO_POINTER (id));
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;
}
}
_COGL_RETURN_IF_FAIL (closure);
cogl_onscreen_remove_frame_callback (onscreen, closure);
}
void
@ -365,16 +503,56 @@ cogl_onscreen_hide (CoglOnscreen *onscreen)
}
}
void
_cogl_onscreen_notify_swap_buffers (CoglOnscreen *onscreen)
static void
notify_event (CoglOnscreen *onscreen,
CoglFrameEvent event,
CoglFrameInfo *info)
{
CoglSwapBuffersNotifyEntry *entry, *tmp;
CoglFrameClosure *entry, *tmp;
COGL_TAILQ_FOREACH_SAFE (entry,
&onscreen->swap_callbacks,
&onscreen->frame_closures,
list_node,
tmp)
entry->callback (COGL_FRAMEBUFFER (onscreen), entry->user_data);
{
entry->callback (onscreen, event, info,
entry->user_data);
}
}
void
_cogl_dispatch_onscreen_events (CoglContext *context)
{
CoglOnscreenEvent *event, *tmp;
COGL_TAILQ_FOREACH_SAFE (event,
&context->onscreen_events_queue,
list_node,
tmp)
{
CoglOnscreen *onscreen = event->onscreen;
CoglFrameInfo *info = event->info;
notify_event (onscreen, event->type, info);
cogl_object_unref (onscreen);
cogl_object_unref (info);
COGL_TAILQ_REMOVE (&context->onscreen_events_queue, event, list_node);
g_slice_free (CoglOnscreenEvent, event);
}
}
void
_cogl_onscreen_notify_frame_sync (CoglOnscreen *onscreen, CoglFrameInfo *info)
{
notify_event (onscreen, COGL_FRAME_EVENT_SYNC, info);
}
void
_cogl_onscreen_notify_complete (CoglOnscreen *onscreen, CoglFrameInfo *info)
{
notify_event (onscreen, COGL_FRAME_EVENT_COMPLETE, info);
}
void
@ -468,3 +646,8 @@ cogl_onscreen_remove_resize_handler (CoglOnscreen *onscreen,
}
}
int64_t
cogl_onscreen_get_frame_counter (CoglOnscreen *onscreen)
{
return onscreen->frame_counter;
}

156
cogl/cogl-onscreen.h
View File

@ -34,6 +34,8 @@
#include <cogl/cogl-context.h>
#include <cogl/cogl-framebuffer.h>
#include <cogl/cogl-frame-info.h>
#include <cogl/cogl-object.h>
COGL_BEGIN_DECLS
@ -380,6 +382,143 @@ cogl_onscreen_swap_region (CoglOnscreen *onscreen,
const int *rectangles,
int n_rectangles);
/**
* CoglFrameEvent:
* @COGL_FRAME_EVENT_SYNC: Notifies that the system compositor has
* acknowledged a frame and is ready for a
* new frame to be created.
* @COGL_FRAME_EVENT_COMPLETE: Notifies that a frame has ended. This
* is a good time for applications to
* collect statistics about the frame
* since the #CoglFrameInfo should hold
* the most data at this point. No other
* events should be expected after a
* @COGL_FRAME_EVENT_COMPLETE event.
*
* Identifiers that are passed to #CoglFrameCallback functions
* (registered using cogl_onscreen_add_frame_callback()) that
* mark the progression of a frame in some way which usually
* means that new information will have been accumulated in the
* frame's corresponding #CoglFrameInfo object.
*
* The last event that will be sent for a frame will be a
* @COGL_FRAME_EVENT_COMPLETE event and so these are a good
* opportunity to collect statistics about a frame since the
* #CoglFrameInfo should hold the most data at this point.
*
* <note>A frame may not be completed before the next frame can start
* so applications should avoid needing to collect all statistics for
* a particular frame before they can start a new frame.</note>
*
* Since: 1.14
* Stability: unstable
*/
typedef enum _CoglFrameEvent
{
COGL_FRAME_EVENT_SYNC = 1,
COGL_FRAME_EVENT_COMPLETE
} CoglFrameEvent;
/**
* CoglFrameCallback:
* @onscreen: The onscreen that the frame is associated with
* @event: A #CoglFrameEvent notifying how the frame has progressed
* @info: The meta information, such as timing information, about
* the frame that has progressed.
* @user_data: The user pointer passed to
* cogl_onscreen_add_frame_callback()
*
* Is a callback that can be registered via
* cogl_onscreen_add_frame_callback() to be called when a frame
* progresses in some notable way.
*
* Please see the documentation for #CoglFrameEvent and
* cogl_onscreen_add_frame_callback() for more details about what
* events can be notified.
*
* Since: 1.14
* Stability: unstable
*/
typedef void (*CoglFrameCallback) (CoglOnscreen *onscreen,
CoglFrameEvent event,
CoglFrameInfo *info,
void *user_data);
/**
* CoglFrameClosure:
*
* An opaque type that tracks a #CoglFrameCallback and associated user
* data. A #CoglFrameClosure pointer will be returned from
* cogl_onscreen_add_frame_callback() and it allows you to remove a
* callback later using cogl_onscreen_remove_frame_callback().
*
* Since: 1.14
* Stability: unstable
*/
typedef struct _CoglFrameClosure CoglFrameClosure;
/**
* cogl_onscreen_add_frame_callback:
* @onscreen: A #CoglOnscreen framebuffer
* @callback: A callback function to call for frame events
* @user_data: A private pointer to be passed to @callback
* @destroy: An optional callback to destroy @user_data when the
* @callback is removed or @onscreen is freed.
*
* Installs a @callback function that will be called for significant
* events relating to the given @onscreen framebuffer.
*
* The @callback will be used to notify when the system compositor is
* ready for this application to render a new frame. In this case
* %COGL_FRAME_EVENT_SYNC will be passed as the event argument to the
* given @callback in addition to the #CoglFrameInfo corresponding to
* the frame beeing acknowledged by the compositor.
*
* The @callback will also be called to notify when the frame has
* ended. In this case %COGL_FRAME_EVENT_COMPLETE will be passed as
* the event argument to the given @callback in addition to the
* #CoglFrameInfo corresponding to the newly presented frame. The
* meaning of "ended" here simply means that no more timing
* information will be collected within the corresponding
* #CoglFrameInfo and so this is a good opportunity to analyse the
* given info. It does not necessarily mean that the GPU has finished
* rendering the corresponding frame.
*
* We highly recommend throttling your application according to
* %COGL_FRAME_EVENT_SYNC events so that your application can avoid
* wasting resources, drawing more frames than your system compositor
* can display.
*
* Return value: a #CoglFrameClosure pointer that can be used to
* remove the callback and associated @user_data later.
* Since: 1.14
* Stability: unstable
*/
CoglFrameClosure *
cogl_onscreen_add_frame_callback (CoglOnscreen *onscreen,
CoglFrameCallback callback,
void *user_data,
CoglUserDataDestroyCallback destroy);
/**
* cogl_onscreen_remove_frame_callback:
* @onscreen: A #CoglOnscreen
* @closure: A #CoglFrameClosure returned from
* cogl_onscreen_add_frame_callback()
*
* Removes a callback and associated user data that were previously
* registered using cogl_onscreen_add_frame_callback().
*
* If a destroy callback was passed to
* cogl_onscreen_add_frame_callback() to destroy the user data then
* this will get called.
*
* Since: 1.14
* Stability: unstable
*/
void
cogl_onscreen_remove_frame_callback (CoglOnscreen *onscreen,
CoglFrameClosure *closure);
typedef void (*CoglSwapBuffersNotify) (CoglFramebuffer *framebuffer,
void *user_data);
@ -407,6 +546,7 @@ typedef void (*CoglSwapBuffersNotify) (CoglFramebuffer *framebuffer,
* the callback later.
* Since: 1.10
* Stability: unstable
* Deprecated: 1.14: Use cogl_onscreen_add_swap_complete_callback
*/
unsigned int
cogl_onscreen_add_swap_buffers_callback (CoglOnscreen *onscreen,
@ -423,6 +563,7 @@ cogl_onscreen_add_swap_buffers_callback (CoglOnscreen *onscreen,
*
* Since: 1.10
* Stability: unstable
* Deprecated: 1.14: Use cogl_onscreen_remove_swap_complete_callback
*/
void
cogl_onscreen_remove_swap_buffers_callback (CoglOnscreen *onscreen,
@ -580,6 +721,21 @@ cogl_onscreen_remove_resize_handler (CoglOnscreen *onscreen,
CoglBool
cogl_is_onscreen (void *object);
/**
* cogl_onscreen_get_frame_counter:
*
* Gets the value of the framebuffers frame counter. This is
* a counter that increases by one each time
* cogl_onscreen_swap_buffers() or cogl_onscreen_swap_region()
* is called.
*
* Return value: the current frame counter value
* Since: 1.14
* Stability: unstable
*/
int64_t
cogl_onscreen_get_frame_counter (CoglOnscreen *onscreen);
COGL_END_DECLS
#endif /* __COGL_ONSCREEN_H */

10
cogl/cogl-poll.c
View File

@ -44,6 +44,13 @@ cogl_poll_get_info (CoglContext *context,
_COGL_RETURN_IF_FAIL (n_poll_fds != NULL);
_COGL_RETURN_IF_FAIL (timeout != NULL);
if (!COGL_TAILQ_EMPTY (&context->onscreen_events_queue))
{
*n_poll_fds = 0;
*timeout = 0;
return;
}
winsys = _cogl_context_get_winsys (context);
if (winsys->poll_get_info)
@ -70,6 +77,9 @@ cogl_poll_dispatch (CoglContext *context,
_COGL_RETURN_IF_FAIL (cogl_is_context (context));
if (!COGL_TAILQ_EMPTY (&context->onscreen_events_queue))
_cogl_dispatch_onscreen_events (context);
winsys = _cogl_context_get_winsys (context);
if (winsys->poll_dispatch)

2
cogl/cogl-sdl.c
View File

@ -83,5 +83,5 @@ cogl_sdl_handle_event (CoglContext *context, SDL_Event *event)
void
cogl_sdl_idle (CoglContext *context)
{
/* NOP since Cogl doesn't currently need to do anything when idle */
_cogl_dispatch_onscreen_events (context);
}

3
cogl/cogl-types.h
View File

@ -832,6 +832,9 @@ typedef enum _CoglWinsysFeature
/* Avaiable if the age of the back buffer can be queried */
COGL_WINSYS_FEATURE_BUFFER_AGE,
/* Avaiable if the winsys directly handles _SYNC and _COMPLETE events */
COGL_WINSYS_FEATURE_SYNC_AND_COMPLETE_EVENT,
COGL_WINSYS_FEATURE_N_FEATURES
} CoglWinsysFeature;

1
cogl/cogl-x11-renderer-private.h
View File

@ -27,6 +27,7 @@
typedef struct _CoglX11Renderer
{
int damage_base;
int randr_base;
} CoglX11Renderer;
#endif /* __COGL_RENDERER_X11_PRIVATE_H */

1
cogl/cogl.h
View File

@ -105,6 +105,7 @@
#include <cogl/cogl-snippet.h>
#include <cogl/cogl-framebuffer.h>
#include <cogl/cogl-onscreen.h>
#include <cogl/cogl-frame-info.h>
#include <cogl/cogl-poll.h>
#if defined (COGL_HAS_EGL_PLATFORM_KMS_SUPPORT)
#include <cogl/cogl-kms-renderer.h>

11
cogl/winsys/cogl-winsys-egl-kms.c
View File

@ -754,9 +754,13 @@ _cogl_winsys_egl_context_init (CoglContext *context,
{
COGL_FLAGS_SET (context->features,
COGL_FEATURE_ID_SWAP_BUFFERS_EVENT, TRUE);
/* TODO: remove this deprecated feature */
COGL_FLAGS_SET (context->winsys_features,
COGL_WINSYS_FEATURE_SWAP_BUFFERS_EVENT,
TRUE);
COGL_FLAGS_SET (context->winsys_features,
COGL_WINSYS_FEATURE_SYNC_AND_COMPLETE_EVENT,
TRUE);
return TRUE;
}
@ -894,8 +898,13 @@ flush_pending_swap_notify_cb (void *data,
if (kms_onscreen->pending_swap_notify)
{
_cogl_onscreen_notify_swap_buffers (onscreen);
CoglFrameInfo *info = g_queue_pop_head (&onscreen->pending_frame_infos);
_cogl_onscreen_notify_frame_sync (onscreen, info);
_cogl_onscreen_notify_complete (onscreen, info);
kms_onscreen->pending_swap_notify = FALSE;
cogl_object_unref (info);
}
}
}

3
cogl/winsys/cogl-winsys-glx-feature-functions.h
View File

@ -177,7 +177,8 @@ COGL_WINSYS_FEATURE_BEGIN (255, 255,
"INTEL\0",
"swap_event\0",
0,
COGL_WINSYS_FEATURE_SWAP_BUFFERS_EVENT)
COGL_WINSYS_FEATURE_SWAP_BUFFERS_EVENT |
COGL_WINSYS_FEATURE_SYNC_AND_COMPLETE_EVENT)
COGL_WINSYS_FEATURE_END ()
COGL_WINSYS_FEATURE_BEGIN (255, 255,

298
cogl/winsys/cogl-winsys-glx.c
View File

@ -42,6 +42,7 @@
#include "cogl-texture-2d-private.h"
#include "cogl-texture-rectangle-private.h"
#include "cogl-pipeline-opengl-private.h"
#include "cogl-frame-info-private.h"
#include "cogl-framebuffer-private.h"
#include "cogl-onscreen-private.h"
#include "cogl-swap-chain-private.h"
@ -53,7 +54,9 @@
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <fcntl.h>
#include <time.h>
#include <glib/gi18n-lib.h>
@ -81,7 +84,8 @@ typedef struct _CoglOnscreenGLX
CoglOnscreenXlib _parent;
GLXDrawable glxwin;
uint32_t last_swap_vsync_counter;
CoglBool pending_swap_notify;
CoglBool pending_sync_notify;
CoglBool pending_complete_notify;
CoglBool pending_resize_notify;
} CoglOnscreenGLX;
@ -171,23 +175,146 @@ find_onscreen_for_xid (CoglContext *context, uint32_t xid)
}
static void
notify_swap_buffers (CoglContext *context, GLXDrawable drawable)
ensure_ust_type (CoglRenderer *renderer,
GLXDrawable drawable)
{
CoglOnscreen *onscreen = find_onscreen_for_xid (context, (uint32_t)drawable);
CoglDisplay *display = context->display;
CoglGLXDisplay *glx_display = display->winsys;
CoglGLXRenderer *glx_renderer = renderer->winsys;
CoglXlibRenderer *xlib_renderer = _cogl_xlib_renderer_get_data (renderer);
int64_t ust;
int64_t msc;
int64_t sbc;
struct timeval tv;
struct timespec ts;
int64_t current_system_time;
int64_t current_monotonic_time;
if (glx_renderer->ust_type != COGL_GLX_UST_IS_UNKNOWN)
return;
glx_renderer->ust_type = COGL_GLX_UST_IS_OTHER;
if (glx_renderer->glXGetSyncValues == NULL)
goto out;
if (!glx_renderer->glXGetSyncValues (xlib_renderer->xdpy, drawable,
&ust, &msc, &sbc))
goto out;
/* This is the time source that existing (buggy) linux drm drivers
* use */
gettimeofday (&tv, NULL);
current_system_time = (tv.tv_sec * G_GINT64_CONSTANT (1000000)) + tv.tv_usec;
if (current_system_time > ust - 1000000 &&
current_system_time < ust + 1000000)
{
glx_renderer->ust_type = COGL_GLX_UST_IS_GETTIMEOFDAY;
goto out;
}
/* This is the time source that the newer (fixed) linux drm
* drivers use (Linux >= 3.8) */
clock_gettime (CLOCK_MONOTONIC, &ts);
current_monotonic_time = (ts.tv_sec * G_GINT64_CONSTANT (1000000)) +
(ts.tv_nsec / G_GINT64_CONSTANT (1000));
if (current_monotonic_time > ust - 1000000 &&
current_monotonic_time < ust + 1000000)
{
glx_renderer->ust_type = COGL_GLX_UST_IS_MONOTONIC_TIME;
goto out;
}
out:
COGL_NOTE (WINSYS, "Classified OML system time as: %s",
glx_renderer->ust_type == COGL_GLX_UST_IS_GETTIMEOFDAY ? "gettimeofday" :
(glx_renderer->ust_type == COGL_GLX_UST_IS_MONOTONIC_TIME ? "monotonic" :
"other"));
return;
}
static int64_t
ust_to_nanoseconds (CoglRenderer *renderer,
GLXDrawable drawable,
int64_t ust)
{
CoglGLXRenderer *glx_renderer = renderer->winsys;
ensure_ust_type (renderer, drawable);
switch (glx_renderer->ust_type)
{
case COGL_GLX_UST_IS_UNKNOWN:
g_assert_not_reached ();
break;
case COGL_GLX_UST_IS_GETTIMEOFDAY:
case COGL_GLX_UST_IS_MONOTONIC_TIME:
return 1000 * ust;
case COGL_GLX_UST_IS_OTHER:
/* In this case the scale of UST is undefined so we can't easily
* scale to nanoseconds.
*
* For example the driver may be reporting the rdtsc CPU counter
* as UST values and so the scale would need to be determined
* empirically.
*
* Potentially we could block for a known duration within
* ensure_ust_type() to measure the timescale of UST but for now
* we just ignore unknown time sources */
return 0;
}
return 0;
}
static void
set_sync_pending (CoglOnscreen *onscreen)
{
CoglOnscreenGLX *glx_onscreen = onscreen->winsys;
CoglContext *context = COGL_FRAMEBUFFER (onscreen)->context;
CoglGLXDisplay *glx_display = context->display->winsys;
glx_display->pending_sync_notify = TRUE;
glx_onscreen->pending_sync_notify = TRUE;
}
static void
set_complete_pending (CoglOnscreen *onscreen)
{
CoglOnscreenGLX *glx_onscreen = onscreen->winsys;
CoglContext *context = COGL_FRAMEBUFFER (onscreen)->context;
CoglGLXDisplay *glx_display = context->display->winsys;
glx_display->pending_complete_notify = TRUE;
glx_onscreen->pending_complete_notify = TRUE;
}
static void
notify_swap_buffers (CoglContext *context, GLXBufferSwapComplete *swap_event)
{
CoglOnscreen *onscreen = find_onscreen_for_xid (context, (uint32_t)swap_event->drawable);
CoglOnscreenGLX *glx_onscreen;
if (!onscreen)
return;
glx_onscreen = onscreen->winsys;
/* We only want to notify that the swap is complete when the
application calls cogl_context_dispatch so instead of immediately
notifying we'll set a flag to remember to notify later */
glx_display->pending_swap_notify = TRUE;
glx_onscreen->pending_swap_notify = TRUE;
set_sync_pending (onscreen);
if (swap_event->ust != 0)
{
CoglFrameInfo *info = g_queue_peek_head (&onscreen->pending_frame_infos);
info->presentation_time =
ust_to_nanoseconds (context->display->renderer,
glx_onscreen->glxwin,
swap_event->ust);
}
set_complete_pending (onscreen);
}
static void
@ -295,7 +422,7 @@ glx_event_filter_cb (XEvent *xevent, void *data)
{
GLXBufferSwapComplete *swap_event = (GLXBufferSwapComplete *) xevent;
notify_swap_buffers (context, swap_event->drawable);
notify_swap_buffers (context, swap_event);
/* remove SwapComplete events from the queue */
return COGL_FILTER_REMOVE;
@ -434,8 +561,8 @@ update_base_winsys_features (CoglRenderer *renderer)
COGL_WINSYS_FEATURE_MULTIPLE_ONSCREEN,
TRUE);
if (glx_renderer->pf_glXWaitVideoSync ||
glx_renderer->pf_glXWaitForMsc)
if (glx_renderer->glXWaitVideoSync ||
glx_renderer->glXWaitForMsc)
COGL_FLAGS_SET (glx_renderer->base_winsys_features,
COGL_WINSYS_FEATURE_VBLANK_WAIT,
TRUE);
@ -569,10 +696,16 @@ update_winsys_features (CoglContext *context, CoglError **error)
COGL_FLAGS_SET (context->winsys_features,
COGL_WINSYS_FEATURE_SWAP_REGION_THROTTLE, TRUE);
if (_cogl_winsys_has_feature (COGL_WINSYS_FEATURE_SWAP_BUFFERS_EVENT))
COGL_FLAGS_SET (context->features,
COGL_FEATURE_ID_SWAP_BUFFERS_EVENT,
TRUE);
if (_cogl_winsys_has_feature (COGL_WINSYS_FEATURE_SYNC_AND_COMPLETE_EVENT))
{
/* TODO: remove this deprecated feature */
COGL_FLAGS_SET (context->features,
COGL_FEATURE_ID_SWAP_BUFFERS_EVENT,
TRUE);
COGL_FLAGS_SET (context->features,
COGL_FEATURE_ID_PRESENTATION_TIME,
TRUE);
}
return TRUE;
}
@ -1111,7 +1244,7 @@ _cogl_winsys_onscreen_init (CoglOnscreen *onscreen,
}
#ifdef GLX_INTEL_swap_event
if (_cogl_winsys_has_feature (COGL_WINSYS_FEATURE_SWAP_BUFFERS_EVENT))
if (_cogl_winsys_has_feature (COGL_WINSYS_FEATURE_SYNC_AND_COMPLETE_EVENT))
{
GLXDrawable drawable =
glx_onscreen->glxwin ? glx_onscreen->glxwin : xlib_onscreen->xwin;
@ -1280,15 +1413,30 @@ _cogl_winsys_onscreen_bind (CoglOnscreen *onscreen)
}
static void
_cogl_winsys_wait_for_vblank (CoglContext *ctx)
_cogl_winsys_wait_for_gpu (CoglOnscreen *onscreen)
{
CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
CoglContext *ctx = framebuffer->context;
ctx->glFinish ();
}
static void
_cogl_winsys_wait_for_vblank (CoglOnscreen *onscreen)
{
CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
CoglContext *ctx = framebuffer->context;
CoglGLXRenderer *glx_renderer;
CoglXlibRenderer *xlib_renderer;
glx_renderer = ctx->display->renderer->winsys;
xlib_renderer = _cogl_xlib_renderer_get_data (ctx->display->renderer);
if (glx_renderer->glXWaitForMsc ||
glx_renderer->glXGetVideoSync)
{
CoglFrameInfo *info = g_queue_peek_tail (&onscreen->pending_frame_infos);
if (glx_renderer->glXWaitForMsc)
{
CoglOnscreenGLX *glx_onscreen = onscreen->winsys;
@ -1302,15 +1450,23 @@ _cogl_winsys_wait_for_vblank (CoglContext *ctx)
glx_renderer->glXWaitForMsc (xlib_renderer->xdpy, drawable,
0, 2, (msc + 1) % 2,
&ust, &msc, &sbc);
info->presentation_time = ust_to_nanoseconds (ctx->display->renderer,
drawable,
ust);
}
else
{
uint32_t current_count;
struct timespec ts;
glx_renderer->glXGetVideoSync (&current_count);
glx_renderer->glXWaitVideoSync (2,
(current_count + 1) % 2,
&current_count);
clock_gettime (CLOCK_MONOTONIC, &ts);
info->presentation_time =
ts.tv_sec * G_GINT64_CONSTANT (1000000000) + ts.tv_nsec;
}
}
}
@ -1352,6 +1508,22 @@ _cogl_winsys_onscreen_get_buffer_age (CoglOnscreen *onscreen)
return age;
}
static void
set_frame_info_output (CoglOnscreen *onscreen,
CoglOutput *output)
{
CoglFrameInfo *info = g_queue_peek_tail (&onscreen->pending_frame_infos);
info->output = output;
if (output)
{
float refresh_rate = cogl_output_get_refresh_rate (output);
if (refresh_rate != 0.0)
info->refresh_rate = refresh_rate;
}
}
static void
_cogl_winsys_onscreen_swap_region (CoglOnscreen *onscreen,
const int *user_rectangles,
@ -1369,6 +1541,7 @@ _cogl_winsys_onscreen_swap_region (CoglOnscreen *onscreen,
uint32_t end_frame_vsync_counter = 0;
CoglBool have_counter;
CoglBool can_wait;
int x_min = 0, x_max = 0, y_min = 0, y_max = 0;
/*
* We assume that glXCopySubBuffer is synchronized which means it won't prevent multiple
@ -1379,6 +1552,7 @@ _cogl_winsys_onscreen_swap_region (CoglOnscreen *onscreen,
CoglBool blit_sub_buffer_is_synchronized =
_cogl_winsys_has_feature (COGL_WINSYS_FEATURE_SWAP_REGION_SYNCHRONIZED);
int framebuffer_width = cogl_framebuffer_get_width (framebuffer);
int framebuffer_height = cogl_framebuffer_get_height (framebuffer);
int *rectangles = g_alloca (sizeof (int) * n_rectangles * 4);
int i;
@ -1390,7 +1564,24 @@ _cogl_winsys_onscreen_swap_region (CoglOnscreen *onscreen,
for (i = 0; i < n_rectangles; i++)
{
int *rect = &rectangles[4 * i];
if (i == 0)
{
x_min = rect[0];
x_max = rect[0] + rect[2];
y_min = rect[1];
y_max = rect[1] + rect[3];
}
else
{
x_min = MIN (x_min, rect[0]);
x_max = MAX (x_max, rect[0] + rect[2]);
y_min = MIN (y_min, rect[1]);
y_max = MAX (y_max, rect[1] + rect[3]);
}
rect[1] = framebuffer_height - rect[1] - rect[3];
}
_cogl_framebuffer_flush_state (framebuffer,
@ -1444,7 +1635,7 @@ _cogl_winsys_onscreen_swap_region (CoglOnscreen *onscreen,
* additional extension so we can report the limited region of
* the window damage to X/compositors.
*/
context->glFinish ();
_cogl_winsys_wait_for_gpu (onscreen);
if (blit_sub_buffer_is_synchronized && have_counter && can_wait)
{
@ -1455,10 +1646,10 @@ _cogl_winsys_onscreen_swap_region (CoglOnscreen *onscreen,
* any waits if we can see that the video sync count has
* already progressed. */
if (glx_onscreen->last_swap_vsync_counter == end_frame_vsync_counter)
_cogl_winsys_wait_for_vblank (context);
_cogl_winsys_wait_for_vblank (onscreen);
}
else if (can_wait)
_cogl_winsys_wait_for_vblank (context);
_cogl_winsys_wait_for_vblank (onscreen);
if (glx_renderer->glXCopySubBuffer)
{
@ -1516,6 +1707,36 @@ _cogl_winsys_onscreen_swap_region (CoglOnscreen *onscreen,
*/
if (have_counter)
glx_onscreen->last_swap_vsync_counter = end_frame_vsync_counter;
if (!xlib_onscreen->is_foreign_xwin)
{
CoglOutput *output;
x_min = CLAMP (x_min, 0, framebuffer_width);
x_max = CLAMP (x_max, 0, framebuffer_width);
y_min = CLAMP (y_min, 0, framebuffer_width);
y_max = CLAMP (y_max, 0, framebuffer_height);
output =
_cogl_xlib_renderer_output_for_rectangle (context->display->renderer,
xlib_onscreen->x + x_min,
xlib_onscreen->y + y_min,
x_max - x_min,
y_max - y_min);
set_frame_info_output (onscreen, output);
}
/* XXX: we don't get SwapComplete events based on how we implement
* the _swap_region() API but if cogl-onscreen.c knows we are
* handling _SYNC and _COMPLETE events in the winsys then we need to
* send fake events in this case.
*/
if (_cogl_winsys_has_feature (COGL_WINSYS_FEATURE_SYNC_AND_COMPLETE_EVENT))
{
set_sync_pending (onscreen);
set_complete_pending (onscreen);
}
}
static void
@ -1575,16 +1796,16 @@ _cogl_winsys_onscreen_swap_buffers (CoglOnscreen *onscreen)
* obviously does not happen when we use _GLX_SWAP and let
* the driver do the right thing
*/
context->glFinish ();
_cogl_winsys_wait_for_gpu (onscreen);
if (have_counter && can_wait)
{
if (glx_onscreen->last_swap_vsync_counter ==
end_frame_vsync_counter)
_cogl_winsys_wait_for_vblank (context);
_cogl_winsys_wait_for_vblank (onscreen);
}
else if (can_wait)
_cogl_winsys_wait_for_vblank (context);
_cogl_winsys_wait_for_vblank (onscreen);
}
}
else
@ -1595,6 +1816,8 @@ _cogl_winsys_onscreen_swap_buffers (CoglOnscreen *onscreen)
if (have_counter)
glx_onscreen->last_swap_vsync_counter =
_cogl_winsys_get_vsync_counter (context);
set_frame_info_output (onscreen, xlib_onscreen->output);
}
static uint32_t
@ -2257,7 +2480,9 @@ _cogl_winsys_poll_get_info (CoglContext *context,
/* If we've already got a pending swap notify then we'll dispatch
immediately */
if (glx_display->pending_swap_notify || glx_display->pending_resize_notify)
if (glx_display->pending_sync_notify ||
glx_display->pending_resize_notify ||
glx_display->pending_complete_notify)
*timeout = 0;
}
@ -2272,10 +2497,22 @@ flush_pending_notifications_cb (void *data,
CoglOnscreen *onscreen = COGL_ONSCREEN (framebuffer);
CoglOnscreenGLX *glx_onscreen = onscreen->winsys;
if (glx_onscreen->pending_swap_notify)
if (glx_onscreen->pending_sync_notify)
{
_cogl_onscreen_notify_swap_buffers (onscreen);
glx_onscreen->pending_swap_notify = FALSE;
CoglFrameInfo *info = g_queue_peek_head (&onscreen->pending_frame_infos);
_cogl_onscreen_notify_frame_sync (onscreen, info);
glx_onscreen->pending_sync_notify = FALSE;
}
if (glx_onscreen->pending_complete_notify)
{
CoglFrameInfo *info = g_queue_pop_head (&onscreen->pending_frame_infos);
_cogl_onscreen_notify_complete (onscreen, info);
glx_onscreen->pending_complete_notify = FALSE;
cogl_object_unref (info);
}
if (glx_onscreen->pending_resize_notify)
@ -2298,13 +2535,16 @@ _cogl_winsys_poll_dispatch (CoglContext *context,
poll_fds,
n_poll_fds);
if (glx_display->pending_swap_notify || glx_display->pending_resize_notify)
if (glx_display->pending_sync_notify ||
glx_display->pending_resize_notify ||
glx_display->pending_complete_notify)
{
g_list_foreach (context->framebuffers,
flush_pending_notifications_cb,
NULL);
glx_display->pending_swap_notify = FALSE;
glx_display->pending_sync_notify = FALSE;
glx_display->pending_resize_notify = FALSE;
glx_display->pending_complete_notify = FALSE;
}
}