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2007-06-14 Matthew Allum <mallum@openedhand.com>

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* clutter/cogl/gl/cogl.c: (cogl_check_extension):
        Actually populate this func and remove the static alternate
        named one. Means GLX actually checks for available extensions.
        Other minor tidy ups.

        * clutter/glx/clutter-backend-glx.c:
        * clutter/glx/clutter-backend-glx.h:
        Add support for GLX_SGI_swap_control to do vblanking prefering
        over glXGetVideoSyncSGI. Should fix issues on Intel chips with
        very slow frame rates due to vblank problems.
        Thanks to  Michel Danzer for tips, see;
        http://bugs.freedesktop.org/show_bug.cgi?id=10542

        * test/test-actors.c:
        Change FPS to 60.
This commit is contained in:
Matthew Allum 2007-06-14 12:54:47 +00:00
parent ba0fa9d4be
commit 61c6c24dfa
5 changed files with 108 additions and 66 deletions
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18
ChangeLog
View File

@ -1,3 +1,21 @@
2007-06-14 Matthew Allum <mallum@openedhand.com>
* clutter/cogl/gl/cogl.c: (cogl_check_extension):
Actually populate this func and remove the static alternate
named one. Means GLX actually checks for available extensions.
Other minor tidy ups.
* clutter/glx/clutter-backend-glx.c:
* clutter/glx/clutter-backend-glx.h:
Add support for GLX_SGI_swap_control to do vblanking prefering
over glXGetVideoSyncSGI. Should fix issues on Intel chips with
very slow frame rates due to vblank problems.
Thanks to Michel Danzer for tips, see;
http://bugs.freedesktop.org/show_bug.cgi?id=10542
* test/test-actors.c:
Change FPS to 60.
2007-06-14 Emmanuele Bassi <ebassi@openedhand.com>
* clutter/clutter-timeout-pool.c: Make ClutterTimeoutPool

68
clutter/cogl/gl/cogl.c
View File

@ -78,9 +78,15 @@ error_string(GLenum errorCode)
#define GE(x) (x);
#endif
static gboolean
check_gl_extension (const gchar *name,
const gchar *ext)
CoglFuncPtr
cogl_get_proc_address (const gchar* name)
{
/* FIXME: This very likely needs to be handled in the backend */
return NULL;
}
gboolean
cogl_check_extension (const gchar *name, const gchar *ext)
{
gchar *end;
gint name_len, n;
@ -104,40 +110,6 @@ check_gl_extension (const gchar *name,
return FALSE;
}
#if 0
static gboolean
is_gl_version_at_least_12 (void)
{
/* FIXME: This likely needs to live elsewhere in features or cogl */
return
(g_ascii_strtod ((const gchar*) glGetString (GL_VERSION), NULL) >= 1.2);
/* At least GL 1.2 is needed for CLAMP_TO_EDGE */
/* FIXME: move to cogl... */
if (!is_gl_version_at_least_12 ())
{
g_set_error (error, CLUTTER_INIT_ERROR,
CLUTTER_INIT_ERROR_BACKEND,
"Clutter needs at least version 1.2 of OpenGL");
return FALSE;
}
}
#endif
CoglFuncPtr
cogl_get_proc_address (const gchar* name)
{
/* FIXME */
return NULL;
}
gboolean
cogl_check_extension (const gchar *name, const gchar *ext)
{
return FALSE;
}
void
cogl_paint_init (const ClutterColor *color)
{
@ -552,35 +524,19 @@ cogl_get_features ()
gl_extensions = (const gchar*) glGetString (GL_EXTENSIONS);
if (check_gl_extension ("GL_ARB_texture_rectangle", gl_extensions) ||
check_gl_extension ("GL_EXT_texture_rectangle", gl_extensions))
if (cogl_check_extension ("GL_ARB_texture_rectangle", gl_extensions) ||
cogl_check_extension ("GL_EXT_texture_rectangle", gl_extensions))
{
flags |= CLUTTER_FEATURE_TEXTURE_RECTANGLE;
}
#ifdef GL_YCBCR_MESA
if (check_gl_extension ("GL_MESA_ycbcr_texture", gl_extensions))
if (cogl_check_extension ("GL_MESA_ycbcr_texture", gl_extensions))
{
flags |= CLUTTER_FEATURE_TEXTURE_YUV;
}
#endif
#if 0
CLUTTER_NOTE (GL,
"\n"
"===========================================\n"
"GL_VENDOR: %s\n"
"GL_RENDERER: %s\n"
"GL_VERSION: %s\n"
"GL_EXTENSIONS: %s\n"
"===========================================\n",
glGetString (GL_VENDOR),
glGetString (GL_RENDERER),
glGetString (GL_VERSION),
glGetString (GL_EXTENSIONS),
: "no");
#endif
return flags;
}

77
clutter/glx/clutter-backend-glx.c
View File

@ -415,19 +415,69 @@ clutter_backend_glx_get_features (ClutterBackend *backend)
/* FIXME: we really need to check if gl context is set */
CLUTTER_NOTE (BACKEND, "Checking features\n"
"GL_VENDOR: %s\n"
"GL_RENDERER: %s\n"
"GL_VERSION: %s\n"
"GL_EXTENSIONS: %s\n",
glGetString (GL_VENDOR),
glGetString (GL_RENDERER),
glGetString (GL_VERSION),
glGetString (GL_EXTENSIONS));
glx_extensions
= glXQueryExtensionsString (clutter_glx_get_default_display (),
clutter_glx_get_default_screen ());
CLUTTER_NOTE (BACKEND, "GLX Extensions: %s", glx_extensions);
/* First check for explicit disabling or it set elsewhere (eg NVIDIA) */
if (getenv("__GL_SYNC_TO_VBLANK") || check_vblank_env ("none"))
{
CLUTTER_NOTE (MISC, "vblank sync: disabled at user request");
CLUTTER_NOTE (BACKEND, "vblank sync: disabled at user request");
}
else
{
/* We try two GL vblank syncing mechanisms.
* glXSwapIntervalSGI is tried first, then glXGetVideoSyncSGI.
*
* glXSwapIntervalSGI is known to work with Mesa and in particular
* the Intel drivers. glXGetVideoSyncSGI has serious problems with
* Intel drivers causing terrible frame rate so it only tried as a
* fallback.
*
* How well glXGetVideoSyncSGI works with other driver (ATI etc) needs
* to be investigated. glXGetVideoSyncSGI on ATI at least seems to have
* no effect.
*/
if (!check_vblank_env ("dri") &&
cogl_check_extension ("GLX_SGI_swap_control", glx_extensions))
{
backend_glx->swap_interval =
(SwapIntervalProc) get_proc_address ("glXSwapIntervalSGI");
CLUTTER_NOTE (BACKEND, "attempting glXSwapIntervalSGI vblank setup");
if (backend_glx->swap_interval != NULL)
{
if (backend_glx->swap_interval (1) == 0)
{
backend_glx->vblank_type = CLUTTER_VBLANK_GLX_SWAP;
flags |= CLUTTER_FEATURE_SYNC_TO_VBLANK;
CLUTTER_NOTE (BACKEND, "glXSwapIntervalSGI setup success");
}
}
if (!(flags & CLUTTER_FEATURE_SYNC_TO_VBLANK))
CLUTTER_NOTE (BACKEND, "glXSwapIntervalSGI vblank setup failed");
}
if (!check_vblank_env ("dri") &&
!(flags & CLUTTER_FEATURE_SYNC_TO_VBLANK) &&
cogl_check_extension ("GLX_SGI_video_sync", glx_extensions))
{
CLUTTER_NOTE (BACKEND, "attempting glXGetVideoSyncSGI vblank setup");
backend_glx->get_video_sync =
(GetVideoSyncProc) get_proc_address ("glXGetVideoSyncSGI");
@ -437,29 +487,39 @@ clutter_backend_glx_get_features (ClutterBackend *backend)
if ((backend_glx->get_video_sync != NULL) &&
(backend_glx->wait_video_sync != NULL))
{
CLUTTER_NOTE (MISC, "vblank sync: using glx");
CLUTTER_NOTE (BACKEND,
"glXGetVideoSyncSGI vblank setup success");
backend_glx->vblank_type = CLUTTER_VBLANK_GLX;
flags |= CLUTTER_FEATURE_SYNC_TO_VBLANK;
}
if (!(flags & CLUTTER_FEATURE_SYNC_TO_VBLANK))
CLUTTER_NOTE (BACKEND, "glXGetVideoSyncSGI vblank setup failed");
}
#ifdef __linux__
/*
* DRI is really an extreme fallback -rumoured to work with Via chipsets
*/
if (!(flags & CLUTTER_FEATURE_SYNC_TO_VBLANK))
{
CLUTTER_NOTE (BACKEND, "attempting DRI vblank setup");
backend_glx->dri_fd = open("/dev/dri/card0", O_RDWR);
if (backend_glx->dri_fd >= 0)
{
CLUTTER_NOTE (MISC, "vblank sync: using dri");
CLUTTER_NOTE (BACKEND, "DRI vblank setup success");
backend_glx->vblank_type = CLUTTER_VBLANK_DRI;
flags |= CLUTTER_FEATURE_SYNC_TO_VBLANK;
}
if (!(flags & CLUTTER_FEATURE_SYNC_TO_VBLANK))
CLUTTER_NOTE (BACKEND, "DRI vblank setup failed");
}
#endif
if (!(flags & CLUTTER_FEATURE_SYNC_TO_VBLANK))
{
CLUTTER_NOTE (MISC,
"vblank sync: no use-able mechanism found");
CLUTTER_NOTE (BACKEND,
"no use-able vblank mechanism found");
}
}
@ -545,6 +605,11 @@ clutter_backend_glx_wait_for_vblank (ClutterBackendGLX *backend_glx)
{
switch (backend_glx->vblank_type)
{
case CLUTTER_VBLANK_GLX_SWAP:
{
/* Nothing */
break;
}
case CLUTTER_VBLANK_GLX:
{
unsigned int retraceCount;

3
clutter/glx/clutter-backend-glx.h
View File

@ -47,6 +47,7 @@ typedef struct _ClutterBackendGLXClass ClutterBackendGLXClass;
typedef enum ClutterGLXVBlankType
{
CLUTTER_VBLANK_NONE = 0,
CLUTTER_VBLANK_GLX_SWAP,
CLUTTER_VBLANK_GLX,
CLUTTER_VBLANK_DRI
@ -56,6 +57,7 @@ typedef int (*GetVideoSyncProc) (unsigned int *count);
typedef int (*WaitVideoSyncProc) (int divisor,
int remainder,
unsigned int *count);
typedef int (*SwapIntervalProc) (int interval);
typedef struct _ClutterGLXEventFilter
{
@ -84,6 +86,7 @@ struct _ClutterBackendGLX
/* Vblank stuff */
GetVideoSyncProc get_video_sync;
WaitVideoSyncProc wait_video_sync;
SwapIntervalProc swap_interval;
gint dri_fd;
ClutterGLXVBlankType vblank_type;
};

2
tests/test-actors.c
View File

@ -151,7 +151,7 @@ main (int argc, char *argv[])
oh = g_new(SuperOH, 1);
/* Create a timeline to manage animation */
timeline = clutter_timeline_new (360, 120); /* num frames, fps */
timeline = clutter_timeline_new (360, 60); /* num frames, fps */
g_object_set(timeline, "loop", TRUE, 0); /* have it loop */
/* fire a callback for frame change */