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mutter-performance-source/src/backends/native/meta-renderer-native.c
Jonas Ådahl da1c1d9c22 MetaRendererNative: Use pbuffer surface as dummy surface 
Lets use a pbuffer surface as a dummy surface instead of a gbm based
one, so that we don't need to rely on the availability of gbm to create
a dummy surface when there is no need for it.

https://bugzilla.gnome.org/show_bug.cgi?id=773629
2016-11-18 00:00:10 +08:00

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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/*
* Copyright (C) 2011 Intel Corporation.
* Copyright (C) 2016 Red Hat
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Authors:
* Rob Bradford <rob@linux.intel.com> (from cogl-winsys-egl-kms.c)
* Kristian Høgsberg (from eglkms.c)
* Benjamin Franzke (from eglkms.c)
* Robert Bragg <robert@linux.intel.com> (from cogl-winsys-egl-kms.c)
* Neil Roberts <neil@linux.intel.com> (from cogl-winsys-egl-kms.c)
* Jonas Ådahl <jadahl@redhat.com>
*
*/
#include "config.h"
#include <errno.h>
#include <fcntl.h>
#include <gbm.h>
#include <gio/gio.h>
#include <glib-object.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <xf86drm.h>
#include "backends/meta-backend-private.h"
#include "backends/meta-renderer-view.h"
#include "backends/native/meta-monitor-manager-kms.h"
#include "backends/native/meta-renderer-native.h"
#include "cogl/cogl.h"
#include "core/boxes-private.h"
enum
{
PROP_0,
PROP_KMS_FD,
PROP_LAST
};
typedef struct _MetaOnscreenNative
{
struct {
struct gbm_surface *surface;
uint32_t current_fb_id;
uint32_t next_fb_id;
struct gbm_bo *current_bo;
struct gbm_bo *next_bo;
} gbm;
gboolean pending_swap_notify;
gboolean pending_set_crtc;
MetaRendererView *view;
int pending_flips;
} MetaOnscreenNative;
struct _MetaRendererNative
{
MetaRenderer parent;
int kms_fd;
EGLDisplay egl_display;
struct {
struct gbm_device *device;
} gbm;
CoglClosure *swap_notify_idle;
int64_t frame_counter;
};
static void
initable_iface_init (GInitableIface *initable_iface);
G_DEFINE_TYPE_WITH_CODE (MetaRendererNative,
meta_renderer_native,
META_TYPE_RENDERER,
G_IMPLEMENT_INTERFACE (G_TYPE_INITABLE,
initable_iface_init))
static const CoglWinsysEGLVtable _cogl_winsys_egl_vtable;
static const CoglWinsysVtable *parent_vtable;
static void
meta_renderer_native_disconnect (CoglRenderer *cogl_renderer)
{
CoglRendererEGL *egl_renderer = cogl_renderer->winsys;
if (egl_renderer->edpy != EGL_NO_DISPLAY)
eglTerminate (egl_renderer->edpy);
g_slice_free (CoglRendererEGL, egl_renderer);
}
static void
flush_pending_swap_notify (CoglFramebuffer *framebuffer)
{
if (framebuffer->type == COGL_FRAMEBUFFER_TYPE_ONSCREEN)
{
CoglOnscreen *onscreen = COGL_ONSCREEN (framebuffer);
CoglOnscreenEGL *egl_onscreen = onscreen->winsys;
MetaOnscreenNative *onscreen_native = egl_onscreen->platform;
if (onscreen_native->pending_swap_notify)
{
CoglFrameInfo *info =
g_queue_pop_head (&onscreen->pending_frame_infos);
_cogl_onscreen_notify_frame_sync (onscreen, info);
_cogl_onscreen_notify_complete (onscreen, info);
onscreen_native->pending_swap_notify = FALSE;
cogl_object_unref (onscreen);
cogl_object_unref (info);
}
}
}
static void
flush_pending_swap_notify_idle (void *user_data)
{
CoglContext *cogl_context = user_data;
CoglRendererEGL *egl_renderer = cogl_context->display->renderer->winsys;
MetaRendererNative *renderer_native = egl_renderer->platform;
GList *l;
/* This needs to be disconnected before invoking the callbacks in
* case the callbacks cause it to be queued again */
_cogl_closure_disconnect (renderer_native->swap_notify_idle);
renderer_native->swap_notify_idle = NULL;
l = cogl_context->framebuffers;
while (l)
{
GList *next = l->next;
CoglFramebuffer *framebuffer = l->data;
flush_pending_swap_notify (framebuffer);
l = next;
}
}
static void
free_current_bo (CoglOnscreen *onscreen)
{
CoglOnscreenEGL *egl_onscreen = onscreen->winsys;
MetaOnscreenNative *onscreen_native = egl_onscreen->platform;
CoglContext *cogl_context = COGL_FRAMEBUFFER (onscreen)->context;
CoglRenderer *cogl_renderer = cogl_context->display->renderer;
CoglRendererEGL *egl_renderer = cogl_renderer->winsys;
MetaRendererNative *renderer_native = egl_renderer->platform;
if (onscreen_native->gbm.current_fb_id)
{
drmModeRmFB (renderer_native->kms_fd,
onscreen_native->gbm.current_fb_id);
onscreen_native->gbm.current_fb_id = 0;
}
if (onscreen_native->gbm.current_bo)
{
gbm_surface_release_buffer (onscreen_native->gbm.surface,
onscreen_native->gbm.current_bo);
onscreen_native->gbm.current_bo = NULL;
}
}
static void
meta_onscreen_native_queue_swap_notify (CoglOnscreen *onscreen)
{
CoglOnscreenEGL *egl_onscreen = onscreen->winsys;
MetaOnscreenNative *onscreen_native = egl_onscreen->platform;
MetaBackend *backend = meta_get_backend ();
ClutterBackend *clutter_backend = meta_backend_get_clutter_backend (backend);
CoglContext *cogl_context =
clutter_backend_get_cogl_context (clutter_backend);
CoglRenderer *cogl_renderer = cogl_context->display->renderer;
CoglRendererEGL *egl_renderer = cogl_renderer->winsys;
MetaRendererNative *renderer_native = egl_renderer->platform;
/* We only want to notify that the swap is complete when the
* application calls cogl_context_dispatch so instead of
* immediately notifying we queue an idle callback */
if (!renderer_native->swap_notify_idle)
{
renderer_native->swap_notify_idle =
_cogl_poll_renderer_add_idle (cogl_renderer,
flush_pending_swap_notify_idle,
cogl_context,
NULL);
}
/*
* The framebuffer will have its own referenc while the swap notify is
* pending. Otherwise when destroying the view would drop the pending
* notification with if the destruction happens before the idle callback
* is invoked.
*/
cogl_object_ref (onscreen);
onscreen_native->pending_swap_notify = TRUE;
}
static gboolean
meta_renderer_native_connect (CoglRenderer *cogl_renderer,
GError **error)
{
MetaBackend *backend = meta_get_backend ();
MetaRenderer *renderer = meta_backend_get_renderer (backend);
MetaRendererNative *renderer_native = META_RENDERER_NATIVE (renderer);
CoglRendererEGL *egl_renderer;
cogl_renderer->winsys = g_slice_new0 (CoglRendererEGL);
egl_renderer = cogl_renderer->winsys;
egl_renderer->platform_vtable = &_cogl_winsys_egl_vtable;
egl_renderer->platform = renderer_native;
egl_renderer->edpy = renderer_native->egl_display;
if (!_cogl_winsys_egl_renderer_connect_common (cogl_renderer, error))
goto fail;
return TRUE;
fail:
meta_renderer_native_disconnect (cogl_renderer);
return FALSE;
}
static gboolean
meta_renderer_native_setup_egl_display (CoglDisplay *cogl_display,
GError **error)
{
CoglDisplayEGL *egl_display = cogl_display->winsys;
CoglRendererEGL *egl_renderer = cogl_display->renderer->winsys;
MetaRendererNative *renderer_native = egl_renderer->platform;
egl_display->platform = renderer_native;
/* Force a full modeset / drmModeSetCrtc on
* the first swap buffers call.
*/
meta_renderer_native_queue_modes_reset (renderer_native);
return TRUE;
}
static void
meta_renderer_native_destroy_egl_display (CoglDisplay *cogl_display)
{
}
static EGLSurface
create_dummy_pbuffer_surface (EGLDisplay egl_display,
GError **error)
{
MetaBackend *backend = meta_get_backend ();
MetaEgl *egl = meta_backend_get_egl (backend);
EGLConfig pbuffer_config;
static const EGLint pbuffer_config_attribs[] = {
EGL_SURFACE_TYPE, EGL_PBUFFER_BIT,
EGL_RED_SIZE, 1,
EGL_GREEN_SIZE, 1,
EGL_BLUE_SIZE, 1,
EGL_ALPHA_SIZE, 0,
EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
EGL_NONE
};
static const EGLint pbuffer_attribs[] = {
EGL_WIDTH, 16,
EGL_HEIGHT, 16,
EGL_NONE
};
if (!meta_egl_choose_config (egl, egl_display, pbuffer_config_attribs,
&pbuffer_config, error))
return EGL_NO_SURFACE;
return meta_egl_create_pbuffer_surface (egl, egl_display,
pbuffer_config, pbuffer_attribs,
error);
}
static gboolean
meta_renderer_native_egl_context_created (CoglDisplay *cogl_display,
GError **error)
{
CoglDisplayEGL *egl_display = cogl_display->winsys;
CoglRenderer *cogl_renderer = cogl_display->renderer;
CoglRendererEGL *egl_renderer = cogl_renderer->winsys;
if ((egl_renderer->private_features &
COGL_EGL_WINSYS_FEATURE_SURFACELESS_CONTEXT) == 0)
{
egl_display->dummy_surface =
create_dummy_pbuffer_surface (egl_renderer->edpy, error);
if (egl_display->dummy_surface == EGL_NO_SURFACE)
return FALSE;
}
if (!_cogl_winsys_egl_make_current (cogl_display,
egl_display->dummy_surface,
egl_display->dummy_surface,
egl_display->egl_context))
{
_cogl_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_CREATE_CONTEXT,
"Failed to make context current");
return FALSE;
}
return TRUE;
}
static void
meta_renderer_native_egl_cleanup_context (CoglDisplay *cogl_display)
{
CoglDisplayEGL *egl_display = cogl_display->winsys;
CoglRenderer *cogl_renderer = cogl_display->renderer;
CoglRendererEGL *egl_renderer = cogl_renderer->winsys;
if (egl_display->dummy_surface != EGL_NO_SURFACE)
{
eglDestroySurface (egl_renderer->edpy, egl_display->dummy_surface);
egl_display->dummy_surface = EGL_NO_SURFACE;
}
}
static void
meta_onscreen_native_swap_drm_fb (CoglOnscreen *onscreen)
{
CoglOnscreenEGL *egl_onscreen = onscreen->winsys;
MetaOnscreenNative *onscreen_native = egl_onscreen->platform;
free_current_bo (onscreen);
onscreen_native->gbm.current_fb_id = onscreen_native->gbm.next_fb_id;
onscreen_native->gbm.next_fb_id = 0;
onscreen_native->gbm.current_bo = onscreen_native->gbm.next_bo;
onscreen_native->gbm.next_bo = NULL;
}
static void
on_crtc_flipped (GClosure *closure,
MetaRendererView *view)
{
ClutterStageView *stage_view = CLUTTER_STAGE_VIEW (view);
CoglFramebuffer *framebuffer =
clutter_stage_view_get_onscreen (stage_view);
CoglOnscreen *onscreen = COGL_ONSCREEN (framebuffer);
CoglOnscreenEGL *egl_onscreen = onscreen->winsys;
MetaOnscreenNative *onscreen_native = egl_onscreen->platform;
onscreen_native->pending_flips--;
if (onscreen_native->pending_flips == 0)
{
meta_onscreen_native_queue_swap_notify (onscreen);
meta_onscreen_native_swap_drm_fb (onscreen);
}
}
static void
flip_closure_destroyed (MetaRendererView *view)
{
ClutterStageView *stage_view = CLUTTER_STAGE_VIEW (view);
CoglFramebuffer *framebuffer =
clutter_stage_view_get_onscreen (stage_view);
CoglOnscreen *onscreen = COGL_ONSCREEN (framebuffer);
CoglOnscreenEGL *egl_onscreen = onscreen->winsys;
MetaOnscreenNative *onscreen_native = egl_onscreen->platform;
if (onscreen_native->gbm.next_fb_id)
{
MetaBackend *backend = meta_get_backend ();
MetaRenderer *renderer = meta_backend_get_renderer (backend);
MetaRendererNative *renderer_native = META_RENDERER_NATIVE (renderer);
drmModeRmFB (renderer_native->kms_fd, onscreen_native->gbm.next_fb_id);
gbm_surface_release_buffer (onscreen_native->gbm.surface,
onscreen_native->gbm.next_bo);
onscreen_native->gbm.next_bo = NULL;
onscreen_native->gbm.next_fb_id = 0;
meta_onscreen_native_queue_swap_notify (onscreen);
}
g_object_unref (view);
}
static void
meta_onscreen_native_flip_crtc (MetaOnscreenNative *onscreen_native,
GClosure *flip_closure,
MetaCRTC *crtc,
int x,
int y,
gboolean *fb_in_use)
{
MetaBackend *backend = meta_get_backend ();
MetaMonitorManager *monitor_manager =
meta_backend_get_monitor_manager (backend);
MetaMonitorManagerKms *monitor_manager_kms =
META_MONITOR_MANAGER_KMS (monitor_manager);
if (!meta_monitor_manager_kms_is_crtc_active (monitor_manager_kms,
crtc))
{
*fb_in_use = FALSE;
return;
}
if (meta_monitor_manager_kms_flip_crtc (monitor_manager_kms,
crtc,
x, y,
onscreen_native->gbm.next_fb_id,
flip_closure))
onscreen_native->pending_flips++;
*fb_in_use = TRUE;
}
static void
meta_onscreen_native_set_crtc_modes (MetaOnscreenNative *onscreen_native)
{
MetaBackend *backend = meta_get_backend ();
MetaMonitorManager *monitor_manager =
meta_backend_get_monitor_manager (backend);
MetaMonitorManagerKms *monitor_manager_kms =
META_MONITOR_MANAGER_KMS (monitor_manager);
MetaRendererView *view = onscreen_native->view;
uint32_t next_fb_id = onscreen_native->gbm.next_fb_id;
MetaMonitorInfo *monitor_info;
monitor_info = meta_renderer_view_get_monitor_info (view);
if (monitor_info)
{
unsigned int i;
for (i = 0; i < monitor_manager->n_crtcs; i++)
{
MetaCRTC *crtc = &monitor_manager->crtcs[i];
int x = crtc->rect.x - monitor_info->rect.x;
int y = crtc->rect.y - monitor_info->rect.y;
if (crtc->logical_monitor != monitor_info)
continue;
meta_monitor_manager_kms_apply_crtc_mode (monitor_manager_kms,
crtc,
x, y,
next_fb_id);
}
}
else
{
unsigned int i;
for (i = 0; i < monitor_manager->n_crtcs; i++)
{
MetaCRTC *crtc = &monitor_manager->crtcs[i];
meta_monitor_manager_kms_apply_crtc_mode (monitor_manager_kms,
crtc,
crtc->rect.x, crtc->rect.y,
next_fb_id);
}
}
}
static void
meta_onscreen_native_flip_crtcs (CoglOnscreen *onscreen)
{
CoglOnscreenEGL *egl_onscreen = onscreen->winsys;
MetaOnscreenNative *onscreen_native = egl_onscreen->platform;
MetaBackend *backend = meta_get_backend ();
MetaMonitorManager *monitor_manager =
meta_backend_get_monitor_manager (backend);
MetaRendererView *view = onscreen_native->view;
GClosure *flip_closure;
MetaMonitorInfo *monitor_info;
gboolean fb_in_use = FALSE;
/*
* Create a closure that either will be invoked or destructed.
* Invoking the closure represents a completed flip. If the closure
* is destructed before being invoked, the framebuffer references will be
* cleaned up accordingly.
*
* Each successful flip will each own one reference to the closure, thus keep
* it alive until either invoked or destructed. If flipping failed, the
* closure will be destructed before this function goes out of scope.
*/
flip_closure = g_cclosure_new (G_CALLBACK (on_crtc_flipped),
g_object_ref (view),
(GClosureNotify) flip_closure_destroyed);
g_closure_set_marshal (flip_closure, g_cclosure_marshal_generic);
/* Either flip the CRTC's of the monitor info, if we are drawing just part
* of the stage, or all of the CRTC's if we are drawing the whole stage.
*/
monitor_info = meta_renderer_view_get_monitor_info (view);
if (monitor_info)
{
unsigned int i;
for (i = 0; i < monitor_manager->n_crtcs; i++)
{
MetaCRTC *crtc = &monitor_manager->crtcs[i];
int x = crtc->rect.x - monitor_info->rect.x;
int y = crtc->rect.y - monitor_info->rect.y;
if (crtc->logical_monitor != monitor_info)
continue;
meta_onscreen_native_flip_crtc (onscreen_native, flip_closure,
crtc, x, y,
&fb_in_use);
}
}
else
{
unsigned int i;
for (i = 0; i < monitor_manager->n_crtcs; i++)
{
MetaCRTC *crtc = &monitor_manager->crtcs[i];
meta_onscreen_native_flip_crtc (onscreen_native, flip_closure,
crtc, crtc->rect.x, crtc->rect.y,
&fb_in_use);
}
}
/*
* If the framebuffer is in use, but we don't have any pending flips it means
* that flipping is not supported and we set the next framebuffer directly.
* Since we won't receive a flip callback, lets just notify listeners
* directly.
*/
if (fb_in_use && onscreen_native->pending_flips == 0)
{
meta_onscreen_native_queue_swap_notify (onscreen);
meta_onscreen_native_swap_drm_fb (onscreen);
}
g_closure_unref (flip_closure);
}
static void
meta_onscreen_native_swap_buffers_with_damage (CoglOnscreen *onscreen,
const int *rectangles,
int n_rectangles)
{
MetaBackend *backend = meta_get_backend ();
MetaMonitorManager *monitor_manager =
meta_backend_get_monitor_manager (backend);
MetaMonitorManagerKms *monitor_manager_kms =
META_MONITOR_MANAGER_KMS (monitor_manager);
CoglContext *cogl_context = COGL_FRAMEBUFFER (onscreen)->context;
CoglRenderer *cogl_renderer = cogl_context->display->renderer;
CoglRendererEGL *egl_renderer = cogl_renderer->winsys;
MetaRendererNative *renderer_native = egl_renderer->platform;
CoglOnscreenEGL *egl_onscreen = onscreen->winsys;
MetaOnscreenNative *onscreen_native = egl_onscreen->platform;
CoglFrameInfo *frame_info;
uint32_t handle, stride;
frame_info = g_queue_peek_tail (&onscreen->pending_frame_infos);
frame_info->global_frame_counter = renderer_native->frame_counter;
/* If we already have a pending swap then block until it completes */
while (onscreen_native->gbm.next_fb_id != 0)
meta_monitor_manager_kms_wait_for_flip (monitor_manager_kms);
parent_vtable->onscreen_swap_buffers_with_damage (onscreen,
rectangles,
n_rectangles);
/* Now we need to set the CRTC to whatever is the front buffer */
onscreen_native->gbm.next_bo =
gbm_surface_lock_front_buffer (onscreen_native->gbm.surface);
stride = gbm_bo_get_stride (onscreen_native->gbm.next_bo);
handle = gbm_bo_get_handle (onscreen_native->gbm.next_bo).u32;
if (drmModeAddFB (renderer_native->kms_fd,
cogl_framebuffer_get_width (COGL_FRAMEBUFFER (onscreen)),
cogl_framebuffer_get_height (COGL_FRAMEBUFFER (onscreen)),
24, /* depth */
32, /* bpp */
stride,
handle,
&onscreen_native->gbm.next_fb_id))
{
g_warning ("Failed to create new back buffer handle: %m");
gbm_surface_release_buffer (onscreen_native->gbm.surface,
onscreen_native->gbm.next_bo);
onscreen_native->gbm.next_bo = NULL;
onscreen_native->gbm.next_fb_id = 0;
return;
}
/* If this is the first framebuffer to be presented then we now setup the
* crtc modes, else we flip from the previous buffer */
if (onscreen_native->pending_set_crtc)
{
meta_onscreen_native_set_crtc_modes (onscreen_native);
onscreen_native->pending_set_crtc = FALSE;
}
meta_onscreen_native_flip_crtcs (onscreen);
}
static gboolean
meta_renderer_native_init_egl_context (CoglContext *cogl_context,
GError **error)
{
COGL_FLAGS_SET (cogl_context->features,
COGL_FEATURE_ID_SWAP_BUFFERS_EVENT, TRUE);
/* TODO: remove this deprecated feature */
COGL_FLAGS_SET (cogl_context->winsys_features,
COGL_WINSYS_FEATURE_SWAP_BUFFERS_EVENT,
TRUE);
COGL_FLAGS_SET (cogl_context->winsys_features,
COGL_WINSYS_FEATURE_SYNC_AND_COMPLETE_EVENT,
TRUE);
COGL_FLAGS_SET (cogl_context->winsys_features,
COGL_WINSYS_FEATURE_MULTIPLE_ONSCREEN,
TRUE);
return TRUE;
}
static gboolean
meta_renderer_native_create_surface_gbm (MetaRendererNative *renderer_native,
int width,
int height,
struct gbm_surface **gbm_surface,
EGLSurface *egl_surface,
GError **error)
{
MetaBackend *backend = meta_get_backend ();
ClutterBackend *clutter_backend = meta_backend_get_clutter_backend (backend);
CoglContext *cogl_context =
clutter_backend_get_cogl_context (clutter_backend);
CoglDisplay *cogl_display = cogl_context->display;
CoglDisplayEGL *egl_display = cogl_display->winsys;
CoglRendererEGL *egl_renderer = cogl_display->renderer->winsys;
struct gbm_surface *new_gbm_surface;
EGLNativeWindowType egl_native_window;
EGLSurface new_egl_surface;
new_gbm_surface = gbm_surface_create (renderer_native->gbm.device,
width, height,
GBM_FORMAT_XRGB8888,
GBM_BO_USE_SCANOUT |
GBM_BO_USE_RENDERING);
if (!new_gbm_surface)
{
g_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_CREATE_ONSCREEN,
"Failed to allocate surface");
return FALSE;
}
egl_native_window = (EGLNativeWindowType) new_gbm_surface;
new_egl_surface = eglCreateWindowSurface (egl_renderer->edpy,
egl_display->egl_config,
egl_native_window,
NULL);
if (new_egl_surface == EGL_NO_SURFACE)
{
gbm_surface_destroy (new_gbm_surface);
g_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_CREATE_ONSCREEN,
"Failed to allocate surface");
return FALSE;
}
*gbm_surface = new_gbm_surface;
*egl_surface = new_egl_surface;
return TRUE;
}
static gboolean
meta_renderer_native_init_onscreen (CoglOnscreen *onscreen,
GError **error)
{
CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
CoglContext *cogl_context = framebuffer->context;
CoglDisplay *cogl_display = cogl_context->display;
CoglDisplayEGL *egl_display = cogl_display->winsys;
CoglRenderer *cogl_renderer = cogl_display->renderer;
CoglRendererEGL *egl_renderer = cogl_renderer->winsys;
MetaRendererNative *renderer_native = egl_renderer->platform;
CoglOnscreenEGL *egl_onscreen;
MetaOnscreenNative *onscreen_native;
struct gbm_surface *gbm_surface;
EGLSurface egl_surface;
int width;
int height;
_COGL_RETURN_VAL_IF_FAIL (egl_display->egl_context, FALSE);
onscreen->winsys = g_slice_new0 (CoglOnscreenEGL);
egl_onscreen = onscreen->winsys;
onscreen_native = g_slice_new0 (MetaOnscreenNative);
egl_onscreen->platform = onscreen_native;
onscreen_native->pending_set_crtc = TRUE;
/* If a kms_fd is set then the display width and height
* won't be available until meta_renderer_native_set_layout
* is called. In that case, defer creating the surface
* until then.
*/
width = cogl_framebuffer_get_width (framebuffer);
height = cogl_framebuffer_get_height (framebuffer);
if (width == 0 || height == 0)
return TRUE;
if (!meta_renderer_native_create_surface_gbm (renderer_native,
width, height,
&gbm_surface,
&egl_surface,
error))
return FALSE;
onscreen_native->gbm.surface = gbm_surface;
egl_onscreen->egl_surface = egl_surface;
return TRUE;
}
static void
meta_renderer_native_release_onscreen (CoglOnscreen *onscreen)
{
CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
CoglContext *cogl_context = framebuffer->context;
CoglRenderer *cogl_renderer = cogl_context->display->renderer;
CoglRendererEGL *egl_renderer = cogl_renderer->winsys;
CoglOnscreenEGL *egl_onscreen = onscreen->winsys;
MetaOnscreenNative *onscreen_native;
/* If we never successfully allocated then there's nothing to do */
if (egl_onscreen == NULL)
return;
onscreen_native = egl_onscreen->platform;
/* flip state takes a reference on the onscreen so there should
* never be outstanding flips when we reach here. */
g_return_if_fail (onscreen_native->gbm.next_fb_id == 0);
free_current_bo (onscreen);
if (egl_onscreen->egl_surface != EGL_NO_SURFACE)
{
eglDestroySurface (egl_renderer->edpy, egl_onscreen->egl_surface);
egl_onscreen->egl_surface = EGL_NO_SURFACE;
}
if (onscreen_native->gbm.surface)
{
gbm_surface_destroy (onscreen_native->gbm.surface);
onscreen_native->gbm.surface = NULL;
}
g_slice_free (MetaOnscreenNative, onscreen_native);
g_slice_free (CoglOnscreenEGL, onscreen->winsys);
onscreen->winsys = NULL;
}
static const CoglWinsysEGLVtable
_cogl_winsys_egl_vtable = {
.display_setup = meta_renderer_native_setup_egl_display,
.display_destroy = meta_renderer_native_destroy_egl_display,
.context_created = meta_renderer_native_egl_context_created,
.cleanup_context = meta_renderer_native_egl_cleanup_context,
.context_init = meta_renderer_native_init_egl_context
};
struct gbm_device *
meta_renderer_native_get_gbm (MetaRendererNative *renderer_native)
{
return renderer_native->gbm.device;
}
int
meta_renderer_native_get_kms_fd (MetaRendererNative *renderer_native)
{
return renderer_native->kms_fd;
}
void
meta_renderer_native_queue_modes_reset (MetaRendererNative *renderer_native)
{
MetaRenderer *renderer = META_RENDERER (renderer_native);
GList *l;
for (l = meta_renderer_get_views (renderer); l; l = l->next)
{
ClutterStageView *stage_view = l->data;
CoglFramebuffer *framebuffer =
clutter_stage_view_get_onscreen (stage_view);
CoglOnscreen *onscreen = COGL_ONSCREEN (framebuffer);
CoglOnscreenEGL *egl_onscreen = onscreen->winsys;
MetaOnscreenNative *onscreen_native = egl_onscreen->platform;
onscreen_native->pending_set_crtc = TRUE;
}
}
static MetaMonitorTransform
meta_renderer_native_get_monitor_info_transform (MetaRenderer *renderer,
MetaMonitorInfo *monitor_info)
{
MetaBackend *backend = meta_get_backend ();
MetaMonitorManager *monitor_manager =
meta_backend_get_monitor_manager (backend);
MetaMonitorManagerKms *monitor_manager_kms =
META_MONITOR_MANAGER_KMS (monitor_manager);
g_assert (monitor_info->n_outputs > 0);
return meta_monitor_manager_kms_get_view_transform (monitor_manager_kms,
monitor_info->outputs[0]->crtc);
}
static CoglOnscreen *
meta_renderer_native_create_onscreen (MetaRendererNative *renderer,
CoglContext *context,
MetaMonitorTransform transform,
gint view_width,
gint view_height)
{
CoglOnscreen *onscreen;
gint width, height;
GError *error = NULL;
if (meta_monitor_transform_is_rotated (transform))
{
width = view_height;
height = view_width;
}
else
{
width = view_width;
height = view_height;
}
onscreen = cogl_onscreen_new (context, width, height);
cogl_onscreen_set_swap_throttled (onscreen,
_clutter_get_sync_to_vblank ());
if (!cogl_framebuffer_allocate (COGL_FRAMEBUFFER (onscreen), &error))
{
g_warning ("Could not create onscreen: %s", error->message);
cogl_object_unref (onscreen);
g_error_free (error);
return NULL;
}
return onscreen;
}
static CoglOffscreen *
meta_renderer_native_create_offscreen (MetaRendererNative *renderer,
CoglContext *context,
MetaMonitorTransform transform,
gint view_width,
gint view_height)
{
CoglOffscreen *fb;
CoglTexture2D *tex;
GError *error = NULL;
tex = cogl_texture_2d_new_with_size (context, view_width, view_height);
cogl_primitive_texture_set_auto_mipmap (COGL_PRIMITIVE_TEXTURE (tex), FALSE);
if (!cogl_texture_allocate (COGL_TEXTURE (tex), &error))
{
cogl_object_unref (tex);
return FALSE;
}
fb = cogl_offscreen_new_with_texture (COGL_TEXTURE (tex));
cogl_object_unref (tex);
if (!cogl_framebuffer_allocate (COGL_FRAMEBUFFER (fb), &error))
{
g_warning ("Could not create offscreen: %s", error->message);
g_error_free (error);
cogl_object_unref (fb);
return FALSE;
}
return fb;
}
gboolean
meta_renderer_native_set_legacy_view_size (MetaRendererNative *renderer_native,
MetaRendererView *view,
int width,
int height,
GError **error)
{
ClutterBackend *clutter_backend = clutter_get_default_backend ();
CoglContext *cogl_context = clutter_backend_get_cogl_context (clutter_backend);
CoglDisplay *cogl_display = cogl_context_get_display (cogl_context);
CoglRendererEGL *egl_renderer = cogl_display->renderer->winsys;
ClutterStageView *stage_view = CLUTTER_STAGE_VIEW (view);
cairo_rectangle_int_t view_layout;
clutter_stage_view_get_layout (stage_view, &view_layout);
if (width != view_layout.width || height != view_layout.height)
{
MetaBackend *backend = meta_get_backend ();
MetaMonitorManager *monitor_manager =
meta_backend_get_monitor_manager (backend);
MetaMonitorManagerKms *monitor_manager_kms =
META_MONITOR_MANAGER_KMS (monitor_manager);
CoglFramebuffer *framebuffer =
clutter_stage_view_get_onscreen (stage_view);
CoglOnscreen *onscreen = COGL_ONSCREEN (framebuffer);
CoglOnscreenEGL *egl_onscreen = onscreen->winsys;
MetaOnscreenNative *onscreen_native = egl_onscreen->platform;
CoglDisplayEGL *egl_display = cogl_display->winsys;
struct gbm_surface *new_surface;
EGLSurface new_egl_surface;
cairo_rectangle_int_t view_layout;
/*
* Ensure we don't have any pending flips that will want
* to swap the current buffer.
*/
while (onscreen_native->gbm.next_fb_id != 0)
meta_monitor_manager_kms_wait_for_flip (monitor_manager_kms);
/* Need to drop the GBM surface and create a new one */
if (!meta_renderer_native_create_surface_gbm (renderer_native,
width, height,
&new_surface,
&new_egl_surface,
error))
return FALSE;
if (egl_onscreen->egl_surface)
{
_cogl_winsys_egl_make_current (cogl_display,
egl_display->dummy_surface,
egl_display->dummy_surface,
egl_display->egl_context);
eglDestroySurface (egl_renderer->edpy,
egl_onscreen->egl_surface);
}
/*
* Release the current buffer and destroy the associated surface. The
* kernel will deal with keeping the actual buffer alive until its no
* longer used.
*/
free_current_bo (onscreen);
g_clear_pointer (&onscreen_native->gbm.surface, gbm_surface_destroy);
/*
* Update the active gbm and egl surfaces and make sure they they are
* used for drawing the coming frame.
*/
onscreen_native->gbm.surface = new_surface;
egl_onscreen->egl_surface = new_egl_surface;
_cogl_winsys_egl_make_current (cogl_display,
egl_onscreen->egl_surface,
egl_onscreen->egl_surface,
egl_display->egl_context);
view_layout = (cairo_rectangle_int_t) {
.width = width,
.height = height
};
g_object_set (G_OBJECT (view),
"layout", &view_layout,
NULL);
_cogl_framebuffer_winsys_update_size (framebuffer, width, height);
}
meta_renderer_native_queue_modes_reset (renderer_native);
return TRUE;
}
static const CoglWinsysVtable *
get_native_cogl_winsys_vtable (void)
{
static gboolean vtable_inited = FALSE;
static CoglWinsysVtable vtable;
if (!vtable_inited)
{
/* The this winsys is a subclass of the EGL winsys so we
start by copying its vtable */
parent_vtable = _cogl_winsys_egl_get_vtable ();
vtable = *parent_vtable;
vtable.id = COGL_WINSYS_ID_CUSTOM;
vtable.name = "EGL_KMS";
vtable.renderer_connect = meta_renderer_native_connect;
vtable.renderer_disconnect = meta_renderer_native_disconnect;
vtable.onscreen_init = meta_renderer_native_init_onscreen;
vtable.onscreen_deinit = meta_renderer_native_release_onscreen;
/* The KMS winsys doesn't support swap region */
vtable.onscreen_swap_region = NULL;
vtable.onscreen_swap_buffers_with_damage =
meta_onscreen_native_swap_buffers_with_damage;
vtable_inited = TRUE;
}
return &vtable;
}
static CoglRenderer *
meta_renderer_native_create_cogl_renderer (MetaRenderer *renderer)
{
CoglRenderer *cogl_renderer;
cogl_renderer = cogl_renderer_new ();
cogl_renderer_set_custom_winsys (cogl_renderer,
get_native_cogl_winsys_vtable);
return cogl_renderer;
}
static void
meta_onscreen_native_set_view (CoglOnscreen *onscreen,
MetaRendererView *view)
{
CoglOnscreenEGL *egl_onscreen;
MetaOnscreenNative *onscreen_native;
egl_onscreen = onscreen->winsys;
onscreen_native = egl_onscreen->platform;
onscreen_native->view = view;
}
MetaRendererView *
meta_renderer_native_create_legacy_view (MetaRendererNative *renderer_native)
{
MetaBackend *backend = meta_get_backend ();
MetaMonitorManager *monitor_manager =
meta_backend_get_monitor_manager (backend);
CoglOnscreen *onscreen = NULL;
ClutterBackend *clutter_backend = meta_backend_get_clutter_backend (backend);
CoglContext *cogl_context = clutter_backend_get_cogl_context (clutter_backend);
cairo_rectangle_int_t view_layout = { 0 };
MetaRendererView *view;
if (!monitor_manager)
return NULL;
meta_monitor_manager_get_screen_size (monitor_manager,
&view_layout.width,
&view_layout.height);
onscreen = meta_renderer_native_create_onscreen (renderer_native,
cogl_context,
META_MONITOR_TRANSFORM_NORMAL,
view_layout.width,
view_layout.height);
if (!onscreen)
meta_fatal ("Failed to allocate onscreen framebuffer\n");
view = g_object_new (META_TYPE_RENDERER_VIEW,
"layout", &view_layout,
"framebuffer", onscreen,
NULL);
cogl_object_unref (onscreen);
meta_onscreen_native_set_view (onscreen, view);
return view;
}
static MetaRendererView *
meta_renderer_native_create_view (MetaRenderer *renderer,
MetaMonitorInfo *monitor_info)
{
MetaBackend *backend = meta_get_backend ();
ClutterBackend *clutter_backend = meta_backend_get_clutter_backend (backend);
CoglContext *cogl_context = clutter_backend_get_cogl_context (clutter_backend);
CoglDisplay *cogl_display = cogl_context_get_display (cogl_context);
CoglDisplayEGL *egl_display = cogl_display->winsys;
CoglOnscreenEGL *egl_onscreen;
MetaMonitorTransform transform;
CoglOnscreen *onscreen = NULL;
CoglOffscreen *offscreen = NULL;
MetaRendererView *view;
transform = meta_renderer_native_get_monitor_info_transform (renderer,
monitor_info);
onscreen = meta_renderer_native_create_onscreen (META_RENDERER_NATIVE (renderer),
cogl_context,
transform,
monitor_info->rect.width,
monitor_info->rect.height);
if (!onscreen)
meta_fatal ("Failed to allocate onscreen framebuffer\n");
/* Ensure we don't point to stale surfaces when creating the offscreen */
egl_onscreen = onscreen->winsys;
_cogl_winsys_egl_make_current (cogl_display,
egl_onscreen->egl_surface,
egl_onscreen->egl_surface,
egl_display->egl_context);
if (transform != META_MONITOR_TRANSFORM_NORMAL)
{
offscreen = meta_renderer_native_create_offscreen (META_RENDERER_NATIVE (renderer),
cogl_context,
transform,
monitor_info->rect.width,
monitor_info->rect.height);
if (!offscreen)
meta_fatal ("Failed to allocate back buffer texture\n");
}
view = g_object_new (META_TYPE_RENDERER_VIEW,
"layout", &monitor_info->rect,
"framebuffer", onscreen,
"offscreen", offscreen,
"monitor-info", monitor_info,
"transform", transform,
NULL);
cogl_object_unref (onscreen);
g_clear_pointer (&offscreen, cogl_object_unref);
meta_onscreen_native_set_view (onscreen, view);
return view;
}
void
meta_renderer_native_finish_frame (MetaRendererNative *renderer_native)
{
renderer_native->frame_counter++;
}
int64_t
meta_renderer_native_get_frame_counter (MetaRendererNative *renderer_native)
{
return renderer_native->frame_counter;
}
static void
meta_renderer_native_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
MetaRendererNative *renderer_native = META_RENDERER_NATIVE (object);
switch (prop_id)
{
case PROP_KMS_FD:
g_value_set_int (value, renderer_native->kms_fd);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
meta_renderer_native_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
MetaRendererNative *renderer_native = META_RENDERER_NATIVE (object);
switch (prop_id)
{
case PROP_KMS_FD:
renderer_native->kms_fd = g_value_get_int (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
meta_renderer_native_finalize (GObject *object)
{
MetaRendererNative *renderer_native = META_RENDERER_NATIVE (object);
g_clear_pointer (&renderer_native->gbm.device, gbm_device_destroy);
G_OBJECT_CLASS (meta_renderer_native_parent_class)->finalize (object);
}
static gboolean
init_gbm (MetaRendererNative *renderer_native,
GError **error)
{
MetaBackend *backend = meta_get_backend ();
MetaEgl *egl = meta_backend_get_egl (backend);
struct gbm_device *gbm_device;
EGLDisplay egl_display;
gbm_device = gbm_create_device (renderer_native->kms_fd);
if (!gbm_device)
{
g_set_error (error, G_IO_ERROR,
G_IO_ERROR_FAILED,
"Failed to create gbm device");
return FALSE;
}
egl_display = meta_egl_get_display (egl, (EGLNativeDisplayType) gbm_device,
error);
if (egl_display == EGL_NO_DISPLAY)
{
gbm_device_destroy (gbm_device);
return FALSE;
}
renderer_native->egl_display = egl_display;
renderer_native->gbm.device = gbm_device;
return TRUE;
}
static gboolean
meta_renderer_native_initable_init (GInitable *initable,
GCancellable *cancellable,
GError **error)
{
MetaRendererNative *renderer_native = META_RENDERER_NATIVE (initable);
return init_gbm (renderer_native, error);
}
static void
initable_iface_init (GInitableIface *initable_iface)
{
initable_iface->init = meta_renderer_native_initable_init;
}
static void
meta_renderer_native_init (MetaRendererNative *renderer_native)
{
}
static void
meta_renderer_native_class_init (MetaRendererNativeClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
MetaRendererClass *renderer_class = META_RENDERER_CLASS (klass);
object_class->get_property = meta_renderer_native_get_property;
object_class->set_property = meta_renderer_native_set_property;
object_class->finalize = meta_renderer_native_finalize;
renderer_class->create_cogl_renderer = meta_renderer_native_create_cogl_renderer;
renderer_class->create_view = meta_renderer_native_create_view;
g_object_class_install_property (object_class,
PROP_KMS_FD,
g_param_spec_int ("kms-fd",
"KMS fd",
"The KMS file descriptor",
0, G_MAXINT, 0,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
}
MetaRendererNative *
meta_renderer_native_new (int kms_fd,
GError **error)
{
MetaRendererNative *renderer_native;
renderer_native = g_object_new (META_TYPE_RENDERER_NATIVE,
"kms-fd", kms_fd,
NULL);
if (!g_initable_init (G_INITABLE (renderer_native), NULL, error))
{
g_object_unref (renderer_native);
return NULL;
}
return renderer_native;
}
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