87ccdacdaf
* clutter/clutter-backend.c: (_clutter_backend_create_stage): Call _clutter_stage_set_window() ourselves, thus removing yet another action that backends must implement and might get wrong; also cuts a backend-agnostic piece of code duplication. * clutter/eglnative/clutter-backend-egl.c: (clutter_backend_egl_create_stage): Update the EGL native backend. * clutter/eglx/clutter-backend-egl.c: (clutter_backend_egl_create_stage): Update the EGLX backend. * clutter/fruity/clutter-backend-fruity.c: (clutter_backend_egl_create_stage): Update the fruity backend * clutter/glx/clutter-backend-glx.c: (clutter_backend_glx_create_stage): Update the GLX backend. * clutter/sdl/clutter-backend-sdl.c: (clutter_backend_sdl_create_stage): Update the SDL backend. * HACKING.backends: Update the ::create_stage() description.
302 lines
8.4 KiB
C
302 lines
8.4 KiB
C
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include "clutter-backend-egl.h"
|
|
#include "clutter-stage-egl.h"
|
|
#include "../clutter-private.h"
|
|
#include "../clutter-main.h"
|
|
#include "../clutter-debug.h"
|
|
#include "../clutter-version.h"
|
|
|
|
static ClutterBackendEGL *backend_singleton = NULL;
|
|
|
|
G_DEFINE_TYPE (ClutterBackendEGL, clutter_backend_egl, CLUTTER_TYPE_BACKEND_X11);
|
|
|
|
static gboolean
|
|
clutter_backend_egl_post_parse (ClutterBackend *backend,
|
|
GError **error)
|
|
{
|
|
ClutterBackendEGL *backend_egl = CLUTTER_BACKEND_EGL (backend);
|
|
ClutterBackendX11 *backend_x11 = CLUTTER_BACKEND_X11 (backend);
|
|
|
|
if (clutter_backend_x11_post_parse (backend, error))
|
|
{
|
|
EGLBoolean status;
|
|
|
|
backend_egl->edpy =
|
|
eglGetDisplay ((NativeDisplayType) backend_x11->xdpy);
|
|
|
|
status = eglInitialize (backend_egl->edpy,
|
|
&backend_egl->egl_version_major,
|
|
&backend_egl->egl_version_minor);
|
|
|
|
if (status != EGL_TRUE)
|
|
{
|
|
g_set_error (error, CLUTTER_INIT_ERROR,
|
|
CLUTTER_INIT_ERROR_BACKEND,
|
|
"Unable to Initialize EGL");
|
|
return FALSE;
|
|
}
|
|
|
|
}
|
|
|
|
CLUTTER_NOTE (BACKEND, "EGL Reports version %i.%i",
|
|
backend_egl->egl_version_major,
|
|
backend_egl->egl_version_minor);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
clutter_backend_egl_ensure_context (ClutterBackend *backend,
|
|
ClutterStage *stage)
|
|
{
|
|
ClutterBackendEGL *backend_egl = CLUTTER_BACKEND_EGL (backend);
|
|
|
|
if (stage == NULL)
|
|
{
|
|
CLUTTER_NOTE (BACKEND, "Clearing EGL context");
|
|
eglMakeCurrent (backend_egl->edpy,
|
|
EGL_NO_SURFACE,
|
|
EGL_NO_SURFACE,
|
|
EGL_NO_CONTEXT);
|
|
}
|
|
else
|
|
{
|
|
ClutterStageWindow *impl;
|
|
ClutterStageEGL *stage_egl;
|
|
ClutterStageX11 *stage_x11;
|
|
|
|
impl = _clutter_stage_get_window (stage);
|
|
g_assert (impl != NULL);
|
|
|
|
CLUTTER_NOTE (MULTISTAGE, "Setting context for stage of type %s [%p]",
|
|
g_type_name (G_OBJECT_TYPE (impl)),
|
|
impl);
|
|
|
|
stage_egl = CLUTTER_STAGE_EGL (impl);
|
|
stage_x11 = CLUTTER_STAGE_X11 (impl);
|
|
|
|
if (!backend_egl->egl_context)
|
|
return;
|
|
|
|
clutter_x11_trap_x_errors ();
|
|
|
|
/* we might get here inside the final dispose cycle, so we
|
|
* need to handle this gracefully
|
|
*/
|
|
if (stage_x11->xwin == None ||
|
|
stage_egl->egl_surface == EGL_NO_SURFACE)
|
|
{
|
|
CLUTTER_NOTE (MULTISTAGE,
|
|
"Received a stale stage, clearing all context");
|
|
|
|
eglMakeCurrent (backend_egl->edpy,
|
|
EGL_NO_SURFACE,
|
|
EGL_NO_SURFACE,
|
|
EGL_NO_CONTEXT);
|
|
}
|
|
else
|
|
eglMakeCurrent (backend_egl->edpy,
|
|
stage_egl->egl_surface,
|
|
stage_egl->egl_surface,
|
|
backend_egl->egl_context);
|
|
|
|
if (clutter_x11_untrap_x_errors ())
|
|
g_critical ("Unable to make the stage window 0x%x the current "
|
|
"EGLX drawable",
|
|
(int) stage_x11->xwin);
|
|
}
|
|
}
|
|
|
|
static void
|
|
clutter_backend_egl_redraw (ClutterBackend *backend,
|
|
ClutterStage *stage)
|
|
{
|
|
ClutterBackendEGL *backend_egl = CLUTTER_BACKEND_EGL (backend);
|
|
ClutterStageEGL *stage_egl;
|
|
ClutterStageX11 *stage_x11;
|
|
ClutterStageWindow *impl;
|
|
|
|
impl = _clutter_stage_get_window (stage);
|
|
if (!impl)
|
|
return;
|
|
|
|
g_assert (CLUTTER_IS_STAGE_EGL (impl));
|
|
|
|
stage_x11 = CLUTTER_STAGE_X11 (impl);
|
|
stage_egl = CLUTTER_STAGE_EGL (impl);
|
|
|
|
/* this will cause the stage implementation to be painted as well */
|
|
clutter_actor_paint (CLUTTER_ACTOR (stage));
|
|
|
|
/* Why this paint is done in backend as likely GL windowing system
|
|
* specific calls, like swapping buffers.
|
|
*/
|
|
if (stage_x11->xwin)
|
|
{
|
|
/* clutter_feature_wait_for_vblank (); */
|
|
eglSwapBuffers (backend_egl->edpy, stage_egl->egl_surface);
|
|
}
|
|
else
|
|
{
|
|
eglWaitGL ();
|
|
CLUTTER_GLERR ();
|
|
}
|
|
}
|
|
|
|
static void
|
|
clutter_backend_egl_finalize (GObject *gobject)
|
|
{
|
|
if (backend_singleton)
|
|
backend_singleton = NULL;
|
|
|
|
G_OBJECT_CLASS (clutter_backend_egl_parent_class)->finalize (gobject);
|
|
}
|
|
|
|
static void
|
|
clutter_backend_egl_dispose (GObject *gobject)
|
|
{
|
|
ClutterBackendEGL *backend_egl = CLUTTER_BACKEND_EGL (gobject);
|
|
|
|
if (backend_egl->egl_context)
|
|
{
|
|
eglDestroyContext (backend_egl->edpy, backend_egl->egl_context);
|
|
backend_egl->egl_context = NULL;
|
|
}
|
|
|
|
if (backend_egl->edpy)
|
|
{
|
|
eglTerminate (backend_egl->edpy);
|
|
backend_egl->edpy = 0;
|
|
}
|
|
|
|
G_OBJECT_CLASS (clutter_backend_egl_parent_class)->dispose (gobject);
|
|
}
|
|
|
|
static GObject *
|
|
clutter_backend_egl_constructor (GType gtype,
|
|
guint n_params,
|
|
GObjectConstructParam *params)
|
|
{
|
|
GObjectClass *parent_class;
|
|
GObject *retval;
|
|
|
|
if (!backend_singleton)
|
|
{
|
|
parent_class = G_OBJECT_CLASS (clutter_backend_egl_parent_class);
|
|
retval = parent_class->constructor (gtype, n_params, params);
|
|
|
|
backend_singleton = CLUTTER_BACKEND_EGL (retval);
|
|
|
|
return retval;
|
|
}
|
|
|
|
g_warning ("Attempting to create a new backend object. This should "
|
|
"never happen, so we return the singleton instance.");
|
|
|
|
return g_object_ref (backend_singleton);
|
|
}
|
|
|
|
static ClutterFeatureFlags
|
|
clutter_backend_egl_get_features (ClutterBackend *backend)
|
|
{
|
|
ClutterBackendEGL *backend_egl = CLUTTER_BACKEND_EGL (backend);
|
|
|
|
CLUTTER_NOTE (BACKEND, "Checking features\n"
|
|
"GL_VENDOR: %s\n"
|
|
"GL_RENDERER: %s\n"
|
|
"GL_VERSION: %s\n"
|
|
"EGL_VENDOR: %s\n"
|
|
"EGL_VERSION: %s\n"
|
|
"EGL_EXTENSIONS: %s\n",
|
|
glGetString (GL_VENDOR),
|
|
glGetString (GL_RENDERER),
|
|
glGetString (GL_VERSION),
|
|
eglQueryString (backend_egl->edpy, EGL_VENDOR),
|
|
eglQueryString (backend_egl->edpy, EGL_VERSION),
|
|
eglQueryString (backend_egl->edpy, EGL_EXTENSIONS));
|
|
|
|
/* We can actually resize too */
|
|
return CLUTTER_FEATURE_STAGE_CURSOR|CLUTTER_FEATURE_STAGE_MULTIPLE;
|
|
}
|
|
|
|
static ClutterActor *
|
|
clutter_backend_egl_create_stage (ClutterBackend *backend,
|
|
ClutterStage *wrapper,
|
|
GError **error)
|
|
{
|
|
ClutterBackendX11 *backend_x11 = CLUTTER_BACKEND_X11 (backend);
|
|
ClutterStageX11 *stage_x11;
|
|
ClutterActor *stage;
|
|
|
|
CLUTTER_NOTE (BACKEND, "Creating stage of type `%s'",
|
|
g_type_name (CLUTTER_STAGE_TYPE));
|
|
|
|
stage = g_object_new (CLUTTER_STAGE_TYPE, NULL);
|
|
|
|
/* copy backend data into the stage */
|
|
stage_x11 = CLUTTER_STAGE_X11 (stage);
|
|
stage_x11->xdpy = backend_x11->xdpy;
|
|
stage_x11->xwin_root = backend_x11->xwin_root;
|
|
stage_x11->xscreen = backend_x11->xscreen_num;
|
|
stage_x11->backend = backend_x11;
|
|
stage_x11->wrapper = wrapper;
|
|
|
|
CLUTTER_NOTE (MISC, "EGLX stage created (display:%p, screen:%d, root:%u)",
|
|
stage_x11->xdpy,
|
|
stage_x11->xscreen,
|
|
(unsigned int) stage_x11->xwin_root);
|
|
|
|
return stage;
|
|
}
|
|
|
|
static void
|
|
clutter_backend_egl_class_init (ClutterBackendEGLClass *klass)
|
|
{
|
|
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
|
|
ClutterBackendClass *backend_class = CLUTTER_BACKEND_CLASS (klass);
|
|
|
|
gobject_class->constructor = clutter_backend_egl_constructor;
|
|
gobject_class->dispose = clutter_backend_egl_dispose;
|
|
gobject_class->finalize = clutter_backend_egl_finalize;
|
|
|
|
backend_class->post_parse = clutter_backend_egl_post_parse;
|
|
backend_class->redraw = clutter_backend_egl_redraw;
|
|
backend_class->get_features = clutter_backend_egl_get_features;
|
|
backend_class->create_stage = clutter_backend_egl_create_stage;
|
|
backend_class->ensure_context = clutter_backend_egl_ensure_context;
|
|
}
|
|
|
|
static void
|
|
clutter_backend_egl_init (ClutterBackendEGL *backend_egl)
|
|
{
|
|
ClutterBackend *backend = CLUTTER_BACKEND (backend_egl);
|
|
|
|
clutter_backend_set_resolution (backend, 96.0);
|
|
clutter_backend_set_double_click_time (backend, 250);
|
|
clutter_backend_set_double_click_distance (backend, 5);
|
|
}
|
|
|
|
GType
|
|
_clutter_backend_impl_get_type (void)
|
|
{
|
|
return clutter_backend_egl_get_type ();
|
|
}
|
|
|
|
/**
|
|
* clutter_egl_display
|
|
*
|
|
* Gets the current EGLDisplay.
|
|
*
|
|
* Return value: an EGLDisplay
|
|
*
|
|
* Since: 0.4
|
|
*/
|
|
EGLDisplay
|
|
clutter_eglx_display (void)
|
|
{
|
|
return backend_singleton->edpy;
|
|
}
|