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ce5a5789bb
mutter/src/backends/native/meta-renderer-native.c
Jonas Ådahl ce5a5789bb native: Release output device files that are unused 
In order to make it possible to e.g. unload an unused DRM device, we
need to make sure that we don't keep the file descriptor open if we
don't need it; otherwise we block anyone from unloading the
corresponding module.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1828>
2021-07-07 21:10:30 +02:00

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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/*
* Copyright (C) 2011 Intel Corporation.
* Copyright (C) 2016 Red Hat
* Copyright (c) 2018,2019 DisplayLink (UK) Ltd.
*
* 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 <drm_fourcc.h>
#include <errno.h>
#include <gbm.h>
#include <gio/gio.h>
#include <glib-object.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "backends/meta-gles3.h"
#include "backends/meta-logical-monitor.h"
#include "backends/native/meta-backend-native-private.h"
#include "backends/native/meta-cogl-utils.h"
#include "backends/native/meta-crtc-kms.h"
#include "backends/native/meta-crtc-virtual.h"
#include "backends/native/meta-device-pool.h"
#include "backends/native/meta-kms-device.h"
#include "backends/native/meta-kms.h"
#include "backends/native/meta-onscreen-native.h"
#include "backends/native/meta-renderer-native-private.h"
#include "cogl/cogl.h"
#include "core/boxes-private.h"
#ifndef EGL_DRM_MASTER_FD_EXT
#define EGL_DRM_MASTER_FD_EXT 0x333C
#endif
/* added in libdrm 2.4.95 */
#ifndef DRM_FORMAT_INVALID
#define DRM_FORMAT_INVALID 0
#endif
struct _MetaRendererNative
{
MetaRenderer parent;
MetaGpuKms *primary_gpu_kms;
MetaGles3 *gles3;
gboolean use_modifiers;
GHashTable *gpu_datas;
GList *pending_mode_set_views;
gboolean pending_mode_set;
GList *kept_alive_onscreens;
GList *power_save_page_flip_onscreens;
guint power_save_page_flip_source_id;
};
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 gboolean
meta_renderer_native_ensure_gpu_data (MetaRendererNative *renderer_native,
MetaGpuKms *gpu_kms,
GError **error);
static void
meta_renderer_native_queue_modes_reset (MetaRendererNative *renderer_native);
const CoglWinsysVtable *
meta_get_renderer_native_parent_vtable (void)
{
return parent_vtable;
}
static void
meta_renderer_native_gpu_data_free (MetaRendererNativeGpuData *renderer_gpu_data)
{
MetaRendererNative *renderer_native = renderer_gpu_data->renderer_native;
MetaEgl *egl = meta_renderer_native_get_egl (renderer_native);
if (renderer_gpu_data->secondary.egl_context != EGL_NO_CONTEXT)
{
meta_egl_destroy_context (egl,
renderer_gpu_data->egl_display,
renderer_gpu_data->secondary.egl_context,
NULL);
}
if (renderer_gpu_data->egl_display != EGL_NO_DISPLAY)
meta_egl_terminate (egl, renderer_gpu_data->egl_display, NULL);
g_clear_pointer (&renderer_gpu_data->gbm.device, gbm_device_destroy);
g_clear_pointer (&renderer_gpu_data->device_file, meta_device_file_release);
g_free (renderer_gpu_data);
}
MetaRendererNativeGpuData *
meta_renderer_native_get_gpu_data (MetaRendererNative *renderer_native,
MetaGpuKms *gpu_kms)
{
return g_hash_table_lookup (renderer_native->gpu_datas, gpu_kms);
}
static MetaRendererNative *
meta_renderer_native_from_gpu (MetaGpuKms *gpu_kms)
{
MetaBackend *backend = meta_gpu_get_backend (META_GPU (gpu_kms));
return META_RENDERER_NATIVE (meta_backend_get_renderer (backend));
}
struct gbm_device *
meta_gbm_device_from_gpu (MetaGpuKms *gpu_kms)
{
MetaRendererNative *renderer_native = meta_renderer_native_from_gpu (gpu_kms);
MetaRendererNativeGpuData *renderer_gpu_data;
renderer_gpu_data = meta_renderer_native_get_gpu_data (renderer_native,
gpu_kms);
return renderer_gpu_data->gbm.device;
}
MetaGpuKms *
meta_renderer_native_get_primary_gpu (MetaRendererNative *renderer_native)
{
return renderer_native->primary_gpu_kms;
}
MetaDeviceFile *
meta_renderer_native_get_primary_device_file (MetaRendererNative *renderer_native)
{
MetaGpuKms *gpu_kms = renderer_native->primary_gpu_kms;
MetaRendererNativeGpuData *renderer_gpu_data;
renderer_gpu_data = meta_renderer_native_get_gpu_data (renderer_native,
gpu_kms);
return renderer_gpu_data->device_file;
}
static MetaRendererNativeGpuData *
meta_create_renderer_native_gpu_data (void)
{
return g_new0 (MetaRendererNativeGpuData, 1);
}
MetaEgl *
meta_renderer_native_get_egl (MetaRendererNative *renderer_native)
{
MetaRenderer *renderer = META_RENDERER (renderer_native);
return meta_backend_get_egl (meta_renderer_get_backend (renderer));
}
gboolean
meta_renderer_native_use_modifiers (MetaRendererNative *renderer_native)
{
return renderer_native->use_modifiers;
}
MetaGles3 *
meta_renderer_native_get_gles3 (MetaRendererNative *renderer_native)
{
return renderer_native->gles3;
}
gboolean
meta_renderer_native_has_pending_mode_sets (MetaRendererNative *renderer_native)
{
return !!renderer_native->pending_mode_set_views;
}
gboolean
meta_renderer_native_has_pending_mode_set (MetaRendererNative *renderer_native)
{
return renderer_native->pending_mode_set;
}
static void
meta_renderer_native_disconnect (CoglRenderer *cogl_renderer)
{
CoglRendererEGL *cogl_renderer_egl = cogl_renderer->winsys;
g_free (cogl_renderer_egl);
}
static gboolean
meta_renderer_native_connect (CoglRenderer *cogl_renderer,
GError **error)
{
CoglRendererEGL *cogl_renderer_egl;
MetaRendererNative *renderer_native = cogl_renderer->custom_winsys_user_data;
MetaGpuKms *gpu_kms;
MetaRendererNativeGpuData *renderer_gpu_data;
cogl_renderer->winsys = g_new0 (CoglRendererEGL, 1);
cogl_renderer_egl = cogl_renderer->winsys;
gpu_kms = meta_renderer_native_get_primary_gpu (renderer_native);
renderer_gpu_data = meta_renderer_native_get_gpu_data (renderer_native,
gpu_kms);
cogl_renderer_egl->platform_vtable = &_cogl_winsys_egl_vtable;
cogl_renderer_egl->platform = renderer_gpu_data;
cogl_renderer_egl->edpy = renderer_gpu_data->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 int
meta_renderer_native_add_egl_config_attributes (CoglDisplay *cogl_display,
const CoglFramebufferConfig *config,
EGLint *attributes)
{
CoglRendererEGL *cogl_renderer_egl = cogl_display->renderer->winsys;
MetaRendererNativeGpuData *renderer_gpu_data = cogl_renderer_egl->platform;
int i = 0;
switch (renderer_gpu_data->mode)
{
case META_RENDERER_NATIVE_MODE_GBM:
attributes[i++] = EGL_SURFACE_TYPE;
attributes[i++] = EGL_WINDOW_BIT;
break;
case META_RENDERER_NATIVE_MODE_SURFACELESS:
attributes[i++] = EGL_SURFACE_TYPE;
attributes[i++] = EGL_PBUFFER_BIT;
break;
#ifdef HAVE_EGL_DEVICE
case META_RENDERER_NATIVE_MODE_EGL_DEVICE:
attributes[i++] = EGL_SURFACE_TYPE;
attributes[i++] = EGL_STREAM_BIT_KHR;
break;
#endif
}
return i;
}
static gboolean
choose_egl_config_from_gbm_format (MetaEgl *egl,
EGLDisplay egl_display,
const EGLint *attributes,
uint32_t gbm_format,
EGLConfig *out_config,
GError **error)
{
EGLConfig *egl_configs;
EGLint n_configs;
EGLint i;
egl_configs = meta_egl_choose_all_configs (egl, egl_display,
attributes,
&n_configs,
error);
if (!egl_configs)
return FALSE;
for (i = 0; i < n_configs; i++)
{
EGLint visual_id;
if (!meta_egl_get_config_attrib (egl, egl_display,
egl_configs[i],
EGL_NATIVE_VISUAL_ID,
&visual_id,
error))
{
g_free (egl_configs);
return FALSE;
}
if ((uint32_t) visual_id == gbm_format)
{
*out_config = egl_configs[i];
g_free (egl_configs);
return TRUE;
}
}
g_free (egl_configs);
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"No EGL config matching supported GBM format found");
return FALSE;
}
static gboolean
meta_renderer_native_choose_egl_config (CoglDisplay *cogl_display,
EGLint *attributes,
EGLConfig *out_config,
GError **error)
{
CoglRenderer *cogl_renderer = cogl_display->renderer;
CoglRendererEGL *cogl_renderer_egl = cogl_renderer->winsys;
MetaBackend *backend = meta_get_backend ();
MetaEgl *egl = meta_backend_get_egl (backend);
MetaRendererNativeGpuData *renderer_gpu_data = cogl_renderer_egl->platform;
EGLDisplay egl_display = cogl_renderer_egl->edpy;
switch (renderer_gpu_data->mode)
{
case META_RENDERER_NATIVE_MODE_GBM:
return choose_egl_config_from_gbm_format (egl,
egl_display,
attributes,
GBM_FORMAT_XRGB8888,
out_config,
error);
case META_RENDERER_NATIVE_MODE_SURFACELESS:
*out_config = EGL_NO_CONFIG_KHR;
return TRUE;
#ifdef HAVE_EGL_DEVICE
case META_RENDERER_NATIVE_MODE_EGL_DEVICE:
return meta_egl_choose_first_config (egl,
egl_display,
attributes,
out_config,
error);
#endif
}
return FALSE;
}
static gboolean
meta_renderer_native_setup_egl_display (CoglDisplay *cogl_display,
GError **error)
{
CoglDisplayEGL *cogl_display_egl = cogl_display->winsys;
CoglRendererEGL *cogl_renderer_egl = cogl_display->renderer->winsys;
MetaRendererNativeGpuData *renderer_gpu_data = cogl_renderer_egl->platform;
MetaRendererNative *renderer_native = renderer_gpu_data->renderer_native;
cogl_display_egl->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_first_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 *cogl_display_egl = cogl_display->winsys;
CoglRenderer *cogl_renderer = cogl_display->renderer;
CoglRendererEGL *cogl_renderer_egl = cogl_renderer->winsys;
if ((cogl_renderer_egl->private_features &
COGL_EGL_WINSYS_FEATURE_SURFACELESS_CONTEXT) == 0)
{
cogl_display_egl->dummy_surface =
create_dummy_pbuffer_surface (cogl_renderer_egl->edpy, error);
if (cogl_display_egl->dummy_surface == EGL_NO_SURFACE)
return FALSE;
}
if (!_cogl_winsys_egl_make_current (cogl_display,
cogl_display_egl->dummy_surface,
cogl_display_egl->dummy_surface,
cogl_display_egl->egl_context))
{
g_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 *cogl_display_egl = cogl_display->winsys;
CoglRenderer *cogl_renderer = cogl_display->renderer;
CoglRendererEGL *cogl_renderer_egl = cogl_renderer->winsys;
MetaRendererNativeGpuData *renderer_gpu_data = cogl_renderer_egl->platform;
MetaRendererNative *renderer_native = renderer_gpu_data->renderer_native;
MetaEgl *egl = meta_renderer_native_get_egl (renderer_native);
if (cogl_display_egl->dummy_surface != EGL_NO_SURFACE)
{
meta_egl_destroy_surface (egl,
cogl_renderer_egl->edpy,
cogl_display_egl->dummy_surface,
NULL);
cogl_display_egl->dummy_surface = EGL_NO_SURFACE;
}
}
static CoglContext *
cogl_context_from_renderer_native (MetaRendererNative *renderer_native)
{
MetaRenderer *renderer = META_RENDERER (renderer_native);
MetaBackend *backend = meta_renderer_get_backend (renderer);
ClutterBackend *clutter_backend = meta_backend_get_clutter_backend (backend);
return clutter_backend_get_cogl_context (clutter_backend);
}
CoglFramebuffer *
meta_renderer_native_create_dma_buf_framebuffer (MetaRendererNative *renderer_native,
int dmabuf_fd,
uint32_t width,
uint32_t height,
uint32_t stride,
uint32_t offset,
uint64_t modifier,
uint32_t drm_format,
GError **error)
{
CoglContext *cogl_context =
cogl_context_from_renderer_native (renderer_native);
CoglDisplay *cogl_display = cogl_context->display;
CoglRenderer *cogl_renderer = cogl_display->renderer;
CoglRendererEGL *cogl_renderer_egl = cogl_renderer->winsys;
EGLDisplay egl_display = cogl_renderer_egl->edpy;
MetaEgl *egl = meta_renderer_native_get_egl (renderer_native);
EGLImageKHR egl_image;
uint32_t strides[1];
uint32_t offsets[1];
uint64_t modifiers[1];
CoglPixelFormat cogl_format;
CoglEglImageFlags flags;
CoglTexture2D *cogl_tex;
CoglOffscreen *cogl_fbo;
int ret;
ret = meta_cogl_pixel_format_from_drm_format (drm_format,
&cogl_format,
NULL);
g_assert (ret);
strides[0] = stride;
offsets[0] = offset;
modifiers[0] = modifier;
egl_image = meta_egl_create_dmabuf_image (egl,
egl_display,
width,
height,
drm_format,
1 /* n_planes */,
&dmabuf_fd,
strides,
offsets,
modifiers,
error);
if (egl_image == EGL_NO_IMAGE_KHR)
return NULL;
flags = COGL_EGL_IMAGE_FLAG_NO_GET_DATA;
cogl_tex = cogl_egl_texture_2d_new_from_image (cogl_context,
width,
height,
cogl_format,
egl_image,
flags,
error);
meta_egl_destroy_image (egl, egl_display, egl_image, NULL);
if (!cogl_tex)
return NULL;
cogl_fbo = cogl_offscreen_new_with_texture (COGL_TEXTURE (cogl_tex));
cogl_object_unref (cogl_tex);
if (!cogl_framebuffer_allocate (COGL_FRAMEBUFFER (cogl_fbo), error))
{
g_object_unref (cogl_fbo);
return NULL;
}
return COGL_FRAMEBUFFER (cogl_fbo);
}
static void
configure_disabled_crtcs (MetaKmsDevice *kms_device)
{
MetaKms *kms = meta_kms_device_get_kms (kms_device);
GList *l;
for (l = meta_kms_device_get_crtcs (kms_device); l; l = l->next)
{
MetaKmsCrtc *kms_crtc = l->data;
MetaCrtcKms *crtc_kms = meta_crtc_kms_from_kms_crtc (kms_crtc);
MetaKmsUpdate *kms_update;
if (meta_crtc_get_config (META_CRTC (crtc_kms)))
continue;
if (!meta_kms_crtc_is_active (kms_crtc))
continue;
kms_update = meta_kms_ensure_pending_update (kms, kms_device);
meta_kms_update_mode_set (kms_update, kms_crtc, NULL, NULL);
}
}
static gboolean
dummy_power_save_page_flip_cb (gpointer user_data)
{
MetaRendererNative *renderer_native = user_data;
g_list_foreach (renderer_native->power_save_page_flip_onscreens,
(GFunc) meta_onscreen_native_dummy_power_save_page_flip,
NULL);
g_clear_list (&renderer_native->power_save_page_flip_onscreens,
g_object_unref);
renderer_native->power_save_page_flip_source_id = 0;
return G_SOURCE_REMOVE;
}
void
meta_renderer_native_queue_power_save_page_flip (MetaRendererNative *renderer_native,
CoglOnscreen *onscreen)
{
const unsigned int timeout_ms = 100;
if (!renderer_native->power_save_page_flip_source_id)
{
renderer_native->power_save_page_flip_source_id =
g_timeout_add (timeout_ms,
dummy_power_save_page_flip_cb,
renderer_native);
}
renderer_native->power_save_page_flip_onscreens =
g_list_prepend (renderer_native->power_save_page_flip_onscreens,
g_object_ref (onscreen));
}
static void
clear_kept_alive_onscreens (MetaRendererNative *renderer_native)
{
g_clear_list (&renderer_native->kept_alive_onscreens,
g_object_unref);
}
static gboolean
is_gpu_unused (gpointer key,
gpointer value,
gpointer user_data)
{
GHashTable *used_gpus = user_data;
return !g_hash_table_contains (used_gpus, key);
}
static void
free_unused_gpu_datas (MetaRendererNative *renderer_native)
{
MetaRenderer *renderer = META_RENDERER (renderer_native);
g_autoptr (GHashTable) used_gpus = NULL;
GList *l;
used_gpus = g_hash_table_new (NULL, NULL);
g_hash_table_add (used_gpus, renderer_native->primary_gpu_kms);
for (l = meta_renderer_get_views (renderer); l; l = l->next)
{
MetaRendererView *view = l->data;
MetaCrtc *crtc = meta_renderer_view_get_crtc (view);
MetaGpu *gpu;
gpu = meta_crtc_get_gpu (crtc);
if (!gpu)
continue;
g_hash_table_add (used_gpus, gpu);
}
g_hash_table_foreach_remove (renderer_native->gpu_datas,
is_gpu_unused,
used_gpus);
}
void
meta_renderer_native_post_mode_set_updates (MetaRendererNative *renderer_native)
{
MetaRenderer *renderer = META_RENDERER (renderer_native);
MetaBackend *backend = meta_renderer_get_backend (renderer);
MetaKms *kms = meta_backend_native_get_kms (META_BACKEND_NATIVE (backend));
GList *l;
for (l = meta_kms_get_devices (kms); l; l = l->next)
{
MetaKmsDevice *kms_device = l->data;
MetaKmsUpdate *kms_update;
MetaKmsUpdateFlag flags;
g_autoptr (MetaKmsFeedback) kms_feedback = NULL;
const GError *feedback_error;
configure_disabled_crtcs (kms_device);
kms_update = meta_kms_get_pending_update (kms, kms_device);
if (!kms_update)
continue;
flags = META_KMS_UPDATE_FLAG_NONE;
kms_feedback = meta_kms_post_pending_update_sync (kms, kms_device, flags);
switch (meta_kms_feedback_get_result (kms_feedback))
{
case META_KMS_FEEDBACK_PASSED:
break;
case META_KMS_FEEDBACK_FAILED:
feedback_error = meta_kms_feedback_get_error (kms_feedback);
if (!g_error_matches (feedback_error,
G_IO_ERROR,
G_IO_ERROR_PERMISSION_DENIED))
g_warning ("Failed to post KMS update: %s", feedback_error->message);
break;
}
}
clear_kept_alive_onscreens (renderer_native);
meta_kms_notify_modes_set (kms);
free_unused_gpu_datas (renderer_native);
}
static void
unset_disabled_crtcs (MetaBackend *backend,
MetaKms *kms)
{
GList *l;
meta_topic (META_DEBUG_KMS, "Disabling all disabled CRTCs");
for (l = meta_backend_get_gpus (backend); l; l = l->next)
{
MetaGpu *gpu = l->data;
MetaKmsDevice *kms_device =
meta_gpu_kms_get_kms_device (META_GPU_KMS (gpu));
GList *k;
gboolean did_mode_set = FALSE;
MetaKmsUpdateFlag flags;
g_autoptr (MetaKmsFeedback) kms_feedback = NULL;
for (k = meta_gpu_get_crtcs (gpu); k; k = k->next)
{
MetaCrtc *crtc = k->data;
MetaKmsUpdate *kms_update;
if (meta_crtc_get_config (crtc))
continue;
kms_update = meta_kms_ensure_pending_update (kms, kms_device);
meta_crtc_kms_set_mode (META_CRTC_KMS (crtc), kms_update);
did_mode_set = TRUE;
}
if (!did_mode_set)
continue;
flags = META_KMS_UPDATE_FLAG_NONE;
kms_feedback = meta_kms_post_pending_update_sync (kms,
kms_device,
flags);
if (meta_kms_feedback_get_result (kms_feedback) !=
META_KMS_FEEDBACK_PASSED)
{
const GError *error = meta_kms_feedback_get_error (kms_feedback);
if (!g_error_matches (error, G_IO_ERROR,
G_IO_ERROR_PERMISSION_DENIED))
g_warning ("Failed to post KMS update: %s", error->message);
}
}
}
static CoglDmaBufHandle *
meta_renderer_native_create_dma_buf (CoglRenderer *cogl_renderer,
int width,
int height,
GError **error)
{
CoglRendererEGL *cogl_renderer_egl = cogl_renderer->winsys;
MetaRendererNativeGpuData *renderer_gpu_data = cogl_renderer_egl->platform;
MetaRendererNative *renderer_native = renderer_gpu_data->renderer_native;
switch (renderer_gpu_data->mode)
{
case META_RENDERER_NATIVE_MODE_GBM:
{
CoglFramebuffer *dmabuf_fb;
CoglDmaBufHandle *dmabuf_handle;
struct gbm_bo *new_bo;
int stride;
int offset;
int bpp;
int dmabuf_fd = -1;
new_bo = gbm_bo_create (renderer_gpu_data->gbm.device,
width, height, DRM_FORMAT_XRGB8888,
GBM_BO_USE_RENDERING | GBM_BO_USE_LINEAR);
if (!new_bo)
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Failed to allocate buffer");
return NULL;
}
dmabuf_fd = gbm_bo_get_fd (new_bo);
if (dmabuf_fd == -1)
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_EXISTS,
"Failed to export buffer's DMA fd: %s",
g_strerror (errno));
return NULL;
}
stride = gbm_bo_get_stride (new_bo);
offset = gbm_bo_get_offset (new_bo, 0);
bpp = 4;
dmabuf_fb =
meta_renderer_native_create_dma_buf_framebuffer (renderer_native,
dmabuf_fd,
width, height,
stride,
offset,
DRM_FORMAT_MOD_LINEAR,
DRM_FORMAT_XRGB8888,
error);
if (!dmabuf_fb)
return NULL;
dmabuf_handle =
cogl_dma_buf_handle_new (dmabuf_fb, dmabuf_fd,
width, height, stride, offset, bpp,
new_bo,
(GDestroyNotify) gbm_bo_destroy);
g_object_unref (dmabuf_fb);
return dmabuf_handle;
}
break;
case META_RENDERER_NATIVE_MODE_SURFACELESS:
#ifdef HAVE_EGL_DEVICE
case META_RENDERER_NATIVE_MODE_EGL_DEVICE:
#endif
break;
}
g_set_error (error, G_IO_ERROR, G_IO_ERROR_UNKNOWN,
"Current mode does not support exporting DMA buffers");
return NULL;
}
static gboolean
meta_renderer_native_init_egl_context (CoglContext *cogl_context,
GError **error)
{
#ifdef HAVE_EGL_DEVICE
CoglRenderer *cogl_renderer = cogl_context->display->renderer;
CoglRendererEGL *cogl_renderer_egl = cogl_renderer->winsys;
MetaRendererNativeGpuData *renderer_gpu_data = cogl_renderer_egl->platform;
#endif
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);
#ifdef HAVE_EGL_DEVICE
if (renderer_gpu_data->mode == META_RENDERER_NATIVE_MODE_EGL_DEVICE)
COGL_FLAGS_SET (cogl_context->features,
COGL_FEATURE_ID_TEXTURE_EGL_IMAGE_EXTERNAL, TRUE);
#endif
return TRUE;
}
static const CoglWinsysEGLVtable
_cogl_winsys_egl_vtable = {
.add_config_attributes = meta_renderer_native_add_egl_config_attributes,
.choose_config = meta_renderer_native_choose_egl_config,
.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
};
static void
meta_renderer_native_queue_modes_reset (MetaRendererNative *renderer_native)
{
MetaRenderer *renderer = META_RENDERER (renderer_native);
GList *l;
g_clear_list (&renderer_native->pending_mode_set_views, NULL);
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);
if (COGL_IS_ONSCREEN (framebuffer))
{
renderer_native->pending_mode_set_views =
g_list_prepend (renderer_native->pending_mode_set_views,
stage_view);
}
}
renderer_native->pending_mode_set = TRUE;
meta_topic (META_DEBUG_KMS, "Queue mode set");
}
void
meta_renderer_native_notify_mode_sets_reset (MetaRendererNative *renderer_native)
{
renderer_native->pending_mode_set = FALSE;
}
gboolean
meta_renderer_native_pop_pending_mode_set (MetaRendererNative *renderer_native,
MetaRendererView *view)
{
MetaRenderer *renderer = META_RENDERER (renderer_native);
MetaBackend *backend = meta_renderer_get_backend (renderer);
MetaMonitorManager *monitor_manager =
meta_backend_get_monitor_manager (backend);
MetaPowerSave power_save_mode;
GList *link;
g_assert (META_IS_RENDERER_VIEW (view));
power_save_mode = meta_monitor_manager_get_power_save_mode (monitor_manager);
if (power_save_mode != META_POWER_SAVE_ON)
return FALSE;
link = g_list_find (renderer_native->pending_mode_set_views, view);
if (!link)
return FALSE;
renderer_native->pending_mode_set_views =
g_list_delete_link (renderer_native->pending_mode_set_views, link);
return TRUE;
}
static CoglOffscreen *
meta_renderer_native_create_offscreen (MetaRendererNative *renderer,
CoglContext *context,
gint view_width,
gint view_height,
GError **error)
{
CoglOffscreen *fb;
CoglTexture2D *tex;
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_object_unref (fb);
return FALSE;
}
return fb;
}
static const CoglWinsysVtable *
get_native_cogl_winsys_vtable (CoglRenderer *cogl_renderer)
{
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.renderer_create_dma_buf = meta_renderer_native_create_dma_buf;
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,
renderer);
return cogl_renderer;
}
static MetaMonitorTransform
calculate_view_transform (MetaMonitorManager *monitor_manager,
MetaLogicalMonitor *logical_monitor,
MetaOutput *output,
MetaCrtc *crtc)
{
MetaMonitorTransform crtc_transform;
crtc = meta_output_get_assigned_crtc (output);
crtc_transform =
meta_output_logical_to_crtc_transform (output, logical_monitor->transform);
if (meta_monitor_manager_is_transform_handled (monitor_manager,
crtc,
crtc_transform))
return META_MONITOR_TRANSFORM_NORMAL;
else
return crtc_transform;
}
static gboolean
should_force_shadow_fb (MetaRendererNative *renderer_native,
MetaGpuKms *primary_gpu)
{
MetaRenderer *renderer = META_RENDERER (renderer_native);
CoglContext *cogl_context =
cogl_context_from_renderer_native (renderer_native);
MetaKmsDevice *kms_device = meta_gpu_kms_get_kms_device (primary_gpu);
if (meta_renderer_is_hardware_accelerated (renderer))
return FALSE;
if (!cogl_has_feature (cogl_context, COGL_FEATURE_ID_BLIT_FRAMEBUFFER))
return FALSE;
return meta_kms_device_prefers_shadow_buffer (kms_device);
}
static CoglFramebuffer *
create_fallback_offscreen (MetaRendererNative *renderer_native,
CoglContext *cogl_context,
int width,
int height)
{
CoglOffscreen *fallback_offscreen;
GError *error = NULL;
fallback_offscreen = meta_renderer_native_create_offscreen (renderer_native,
cogl_context,
width,
height,
&error);
if (!fallback_offscreen)
{
g_error ("Failed to create fallback offscreen framebuffer: %s",
error->message);
}
return COGL_FRAMEBUFFER (fallback_offscreen);
}
static MetaRendererView *
meta_renderer_native_create_view (MetaRenderer *renderer,
MetaLogicalMonitor *logical_monitor,
MetaOutput *output,
MetaCrtc *crtc)
{
MetaRendererNative *renderer_native = META_RENDERER_NATIVE (renderer);
MetaBackend *backend = meta_renderer_get_backend (renderer);
MetaMonitorManager *monitor_manager =
meta_backend_get_monitor_manager (backend);
CoglContext *cogl_context =
cogl_context_from_renderer_native (renderer_native);
CoglDisplay *cogl_display = cogl_context_get_display (cogl_context);
const MetaCrtcConfig *crtc_config;
const MetaCrtcModeInfo *crtc_mode_info;
MetaMonitorTransform view_transform;
g_autoptr (CoglFramebuffer) framebuffer = NULL;
g_autoptr (CoglOffscreen) offscreen = NULL;
gboolean use_shadowfb;
float scale;
int onscreen_width;
int onscreen_height;
MetaRectangle view_layout;
MetaRendererView *view;
EGLSurface egl_surface;
GError *error = NULL;
crtc_config = meta_crtc_get_config (crtc);
crtc_mode_info = meta_crtc_mode_get_info (crtc_config->mode);
onscreen_width = crtc_mode_info->width;
onscreen_height = crtc_mode_info->height;
if (META_IS_CRTC_KMS (crtc))
{
MetaGpuKms *gpu_kms = META_GPU_KMS (meta_crtc_get_gpu (crtc));
MetaOnscreenNative *onscreen_native;
if (!meta_renderer_native_ensure_gpu_data (renderer_native,
gpu_kms,
&error))
{
g_warning ("Failed to create secondary GPU data for %s",
meta_gpu_kms_get_file_path (gpu_kms));
use_shadowfb = FALSE;
framebuffer = create_fallback_offscreen (renderer_native,
cogl_context,
onscreen_width,
onscreen_height);
}
else
{
MetaGpuKms *primary_gpu_kms = renderer_native->primary_gpu_kms;
onscreen_native = meta_onscreen_native_new (renderer_native,
primary_gpu_kms,
output,
crtc,
cogl_context,
onscreen_width,
onscreen_height);
if (!cogl_framebuffer_allocate (COGL_FRAMEBUFFER (onscreen_native), &error))
{
g_warning ("Failed to allocate onscreen framebuffer for %s",
meta_gpu_kms_get_file_path (gpu_kms));
use_shadowfb = FALSE;
framebuffer = create_fallback_offscreen (renderer_native,
cogl_context,
onscreen_width,
onscreen_height);
}
else
{
use_shadowfb = should_force_shadow_fb (renderer_native,
primary_gpu_kms);
framebuffer = COGL_FRAMEBUFFER (onscreen_native);
}
}
}
else
{
CoglOffscreen *virtual_onscreen;
g_assert (META_IS_CRTC_VIRTUAL (crtc));
virtual_onscreen = meta_renderer_native_create_offscreen (renderer_native,
cogl_context,
onscreen_width,
onscreen_height,
&error);
if (!virtual_onscreen)
g_error ("Failed to allocate back buffer texture: %s", error->message);
use_shadowfb = FALSE;
framebuffer = COGL_FRAMEBUFFER (virtual_onscreen);
}
view_transform = calculate_view_transform (monitor_manager,
logical_monitor,
output,
crtc);
if (view_transform != META_MONITOR_TRANSFORM_NORMAL)
{
int offscreen_width;
int offscreen_height;
if (meta_monitor_transform_is_rotated (view_transform))
{
offscreen_width = onscreen_height;
offscreen_height = onscreen_width;
}
else
{
offscreen_width = onscreen_width;
offscreen_height = onscreen_height;
}
offscreen = meta_renderer_native_create_offscreen (renderer_native,
cogl_context,
offscreen_width,
offscreen_height,
&error);
if (!offscreen)
g_error ("Failed to allocate back buffer texture: %s", error->message);
}
if (meta_is_stage_views_scaled ())
scale = meta_logical_monitor_get_scale (logical_monitor);
else
scale = 1.0;
meta_rectangle_from_graphene_rect (&crtc_config->layout,
META_ROUNDING_STRATEGY_ROUND,
&view_layout);
view = g_object_new (META_TYPE_RENDERER_VIEW,
"name", meta_output_get_name (output),
"stage", meta_backend_get_stage (backend),
"layout", &view_layout,
"crtc", crtc,
"scale", scale,
"framebuffer", framebuffer,
"offscreen", offscreen,
"use-shadowfb", use_shadowfb,
"transform", view_transform,
"refresh-rate", crtc_mode_info->refresh_rate,
NULL);
if (META_IS_ONSCREEN_NATIVE (framebuffer))
{
CoglDisplayEGL *cogl_display_egl;
CoglOnscreenEgl *onscreen_egl;
meta_onscreen_native_set_view (COGL_ONSCREEN (framebuffer), view);
/* Ensure we don't point to stale surfaces when creating the offscreen */
cogl_display_egl = cogl_display->winsys;
onscreen_egl = COGL_ONSCREEN_EGL (framebuffer);
egl_surface = cogl_onscreen_egl_get_egl_surface (onscreen_egl);
_cogl_winsys_egl_make_current (cogl_display,
egl_surface,
egl_surface,
cogl_display_egl->egl_context);
}
return view;
}
static void
keep_current_onscreens_alive (MetaRenderer *renderer)
{
MetaRendererNative *renderer_native = META_RENDERER_NATIVE (renderer);
GList *views;
GList *l;
views = meta_renderer_get_views (renderer);
for (l = views; l; l = l->next)
{
ClutterStageView *stage_view = l->data;
CoglFramebuffer *onscreen = clutter_stage_view_get_onscreen (stage_view);
renderer_native->kept_alive_onscreens =
g_list_prepend (renderer_native->kept_alive_onscreens,
g_object_ref (onscreen));
}
}
static void
meta_renderer_native_rebuild_views (MetaRenderer *renderer)
{
MetaBackend *backend = meta_renderer_get_backend (renderer);
MetaBackendNative *backend_native = META_BACKEND_NATIVE (backend);
MetaKms *kms = meta_backend_native_get_kms (backend_native);
MetaRendererClass *parent_renderer_class =
META_RENDERER_CLASS (meta_renderer_native_parent_class);
meta_kms_discard_pending_page_flips (kms);
keep_current_onscreens_alive (renderer);
parent_renderer_class->rebuild_views (renderer);
meta_renderer_native_queue_modes_reset (META_RENDERER_NATIVE (renderer));
}
void
meta_renderer_native_prepare_frame (MetaRendererNative *renderer_native,
MetaRendererView *view,
ClutterFrame *frame)
{
MetaRenderer *renderer = META_RENDERER (renderer_native);
MetaBackend *backend = meta_renderer_get_backend (renderer);
MetaMonitorManager *monitor_manager =
meta_backend_get_monitor_manager (backend);
MetaCrtc *crtc = meta_renderer_view_get_crtc (view);
MetaPowerSave power_save_mode;
MetaCrtcKms *crtc_kms;
MetaKmsCrtc *kms_crtc;
MetaKmsDevice *kms_device;
if (!META_IS_CRTC_KMS (crtc))
return;
power_save_mode = meta_monitor_manager_get_power_save_mode (monitor_manager);
if (power_save_mode != META_POWER_SAVE_ON)
return;
crtc_kms = META_CRTC_KMS (crtc);
kms_crtc = meta_crtc_kms_get_kms_crtc (META_CRTC_KMS (crtc));
kms_device = meta_kms_crtc_get_device (kms_crtc);
meta_crtc_kms_maybe_set_gamma (crtc_kms, kms_device);
}
void
meta_renderer_native_finish_frame (MetaRendererNative *renderer_native,
MetaRendererView *view,
ClutterFrame *frame)
{
if (!clutter_frame_has_result (frame))
{
CoglFramebuffer *framebuffer =
clutter_stage_view_get_onscreen (CLUTTER_STAGE_VIEW (view));
if (COGL_IS_ONSCREEN (framebuffer))
{
CoglOnscreen *onscreen = COGL_ONSCREEN (framebuffer);
meta_onscreen_native_finish_frame (onscreen, frame);
}
}
}
static gboolean
create_secondary_egl_config (MetaEgl *egl,
MetaRendererNativeMode mode,
EGLDisplay egl_display,
EGLConfig *egl_config,
GError **error)
{
EGLint attributes[] = {
EGL_RED_SIZE, 1,
EGL_GREEN_SIZE, 1,
EGL_BLUE_SIZE, 1,
EGL_ALPHA_SIZE, EGL_DONT_CARE,
EGL_BUFFER_SIZE, EGL_DONT_CARE,
EGL_RENDERABLE_TYPE, EGL_OPENGL_ES3_BIT,
EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
EGL_NONE
};
switch (mode)
{
case META_RENDERER_NATIVE_MODE_GBM:
case META_RENDERER_NATIVE_MODE_SURFACELESS:
return choose_egl_config_from_gbm_format (egl,
egl_display,
attributes,
GBM_FORMAT_XRGB8888,
egl_config,
error);
#ifdef HAVE_EGL_DEVICE
case META_RENDERER_NATIVE_MODE_EGL_DEVICE:
return meta_egl_choose_first_config (egl,
egl_display,
attributes,
egl_config,
error);
#endif
}
return FALSE;
}
static EGLContext
create_secondary_egl_context (MetaEgl *egl,
EGLDisplay egl_display,
EGLConfig egl_config,
GError **error)
{
EGLint attributes[] = {
EGL_CONTEXT_CLIENT_VERSION, 3,
EGL_NONE
};
return meta_egl_create_context (egl,
egl_display,
egl_config,
EGL_NO_CONTEXT,
attributes,
error);
}
static void
meta_renderer_native_ensure_gles3 (MetaRendererNative *renderer_native)
{
MetaEgl *egl = meta_renderer_native_get_egl (renderer_native);
if (renderer_native->gles3)
return;
renderer_native->gles3 = meta_gles3_new (egl);
}
static void
maybe_restore_cogl_egl_api (MetaRendererNative *renderer_native)
{
CoglContext *cogl_context;
CoglDisplay *cogl_display;
CoglRenderer *cogl_renderer;
cogl_context = cogl_context_from_renderer_native (renderer_native);
if (!cogl_context)
return;
cogl_display = cogl_context_get_display (cogl_context);
cogl_renderer = cogl_display_get_renderer (cogl_display);
cogl_renderer_bind_api (cogl_renderer);
}
static gboolean
init_secondary_gpu_data_gpu (MetaRendererNativeGpuData *renderer_gpu_data,
GError **error)
{
MetaRendererNative *renderer_native = renderer_gpu_data->renderer_native;
MetaEgl *egl = meta_renderer_native_get_egl (renderer_native);
EGLDisplay egl_display = renderer_gpu_data->egl_display;
EGLConfig egl_config;
EGLContext egl_context;
const char **missing_gl_extensions;
const char *renderer_str;
meta_egl_bind_api (egl, EGL_OPENGL_ES_API, NULL);
if (!create_secondary_egl_config (egl, renderer_gpu_data->mode, egl_display,
&egl_config, error))
goto err;
egl_context = create_secondary_egl_context (egl, egl_display, egl_config, error);
if (egl_context == EGL_NO_CONTEXT)
goto err;
meta_renderer_native_ensure_gles3 (renderer_native);
if (!meta_egl_make_current (egl,
egl_display,
EGL_NO_SURFACE,
EGL_NO_SURFACE,
egl_context,
error))
{
meta_egl_destroy_context (egl, egl_display, egl_context, NULL);
goto err;
}
renderer_str = (const char *) glGetString (GL_RENDERER);
if (g_str_has_prefix (renderer_str, "llvmpipe") ||
g_str_has_prefix (renderer_str, "softpipe") ||
g_str_has_prefix (renderer_str, "swrast"))
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Do not want to use software renderer (%s), falling back to CPU copy path",
renderer_str);
goto err_fail_with_context;
}
if (!meta_gles3_has_extensions (renderer_native->gles3,
&missing_gl_extensions,
"GL_OES_EGL_image_external",
NULL))
{
char *missing_gl_extensions_str;
missing_gl_extensions_str = g_strjoinv (", ",
(char **) missing_gl_extensions);
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Missing OpenGL ES extensions: %s",
missing_gl_extensions_str);
g_free (missing_gl_extensions_str);
g_free (missing_gl_extensions);
goto err_fail_with_context;
}
renderer_gpu_data->secondary.is_hardware_rendering = TRUE;
renderer_gpu_data->secondary.egl_context = egl_context;
renderer_gpu_data->secondary.egl_config = egl_config;
renderer_gpu_data->secondary.copy_mode = META_SHARED_FRAMEBUFFER_COPY_MODE_SECONDARY_GPU;
renderer_gpu_data->secondary.has_EGL_EXT_image_dma_buf_import_modifiers =
meta_egl_has_extensions (egl, egl_display, NULL,
"EGL_EXT_image_dma_buf_import_modifiers",
NULL);
maybe_restore_cogl_egl_api (renderer_native);
return TRUE;
err_fail_with_context:
meta_egl_make_current (egl,
egl_display,
EGL_NO_SURFACE,
EGL_NO_SURFACE,
EGL_NO_CONTEXT,
NULL);
meta_egl_destroy_context (egl, egl_display, egl_context, NULL);
err:
maybe_restore_cogl_egl_api (renderer_native);
return FALSE;
}
static void
init_secondary_gpu_data_cpu (MetaRendererNativeGpuData *renderer_gpu_data)
{
renderer_gpu_data->secondary.is_hardware_rendering = FALSE;
/* First try ZERO, it automatically falls back to PRIMARY as needed */
renderer_gpu_data->secondary.copy_mode =
META_SHARED_FRAMEBUFFER_COPY_MODE_ZERO;
}
static void
init_secondary_gpu_data (MetaRendererNativeGpuData *renderer_gpu_data)
{
GError *error = NULL;
if (init_secondary_gpu_data_gpu (renderer_gpu_data, &error))
return;
g_message ("Failed to initialize accelerated iGPU/dGPU framebuffer sharing: %s",
error->message);
g_error_free (error);
init_secondary_gpu_data_cpu (renderer_gpu_data);
}
static gboolean
gpu_kms_is_hardware_rendering (MetaRendererNative *renderer_native,
MetaGpuKms *gpu_kms)
{
MetaRendererNativeGpuData *data;
data = meta_renderer_native_get_gpu_data (renderer_native, gpu_kms);
return data->secondary.is_hardware_rendering;
}
static EGLDisplay
init_gbm_egl_display (MetaRendererNative *renderer_native,
struct gbm_device *gbm_device,
GError **error)
{
MetaEgl *egl = meta_renderer_native_get_egl (renderer_native);
EGLDisplay egl_display;
if (!meta_egl_has_extensions (egl, EGL_NO_DISPLAY, NULL,
"EGL_MESA_platform_gbm",
NULL) &&
!meta_egl_has_extensions (egl, EGL_NO_DISPLAY, NULL,
"EGL_KHR_platform_gbm",
NULL))
{
g_set_error (error, G_IO_ERROR,
G_IO_ERROR_FAILED,
"Missing extension for GBM renderer: EGL_KHR_platform_gbm");
return EGL_NO_DISPLAY;
}
egl_display = meta_egl_get_platform_display (egl,
EGL_PLATFORM_GBM_KHR,
gbm_device, NULL, error);
if (egl_display == EGL_NO_DISPLAY)
return EGL_NO_DISPLAY;
if (!meta_egl_initialize (egl, egl_display, error))
return EGL_NO_DISPLAY;
return egl_display;
}
static MetaRendererNativeGpuData *
create_renderer_gpu_data_gbm (MetaRendererNative *renderer_native,
MetaDeviceFile *device_file,
GError **error)
{
struct gbm_device *gbm_device;
MetaRendererNativeGpuData *renderer_gpu_data;
g_autoptr (GError) local_error = NULL;
gbm_device = gbm_create_device (meta_device_file_get_fd (device_file));
if (!gbm_device)
{
g_set_error (error, G_IO_ERROR,
G_IO_ERROR_FAILED,
"Failed to create gbm device: %s", g_strerror (errno));
return NULL;
}
renderer_gpu_data = meta_create_renderer_native_gpu_data ();
renderer_gpu_data->device_file = meta_device_file_acquire (device_file);
renderer_gpu_data->renderer_native = renderer_native;
renderer_gpu_data->gbm.device = gbm_device;
renderer_gpu_data->mode = META_RENDERER_NATIVE_MODE_GBM;
renderer_gpu_data->egl_display = init_gbm_egl_display (renderer_native,
gbm_device,
&local_error);
if (renderer_gpu_data->egl_display == EGL_NO_DISPLAY)
{
g_debug ("GBM EGL init for %s failed: %s",
meta_device_file_get_path (device_file),
local_error->message);
init_secondary_gpu_data_cpu (renderer_gpu_data);
return renderer_gpu_data;
}
init_secondary_gpu_data (renderer_gpu_data);
return renderer_gpu_data;
}
static EGLDisplay
init_surfaceless_egl_display (MetaRendererNative *renderer_native,
GError **error)
{
MetaEgl *egl = meta_renderer_native_get_egl (renderer_native);
EGLDisplay egl_display;
if (!meta_egl_has_extensions (egl, EGL_NO_DISPLAY, NULL,
"EGL_MESA_platform_surfaceless",
NULL))
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Missing EGL platform required for surfaceless context: "
"EGL_MESA_platform_surfaceless");
return EGL_NO_DISPLAY;
}
egl_display = meta_egl_get_platform_display (egl,
EGL_PLATFORM_SURFACELESS_MESA,
EGL_DEFAULT_DISPLAY,
NULL, error);
if (egl_display == EGL_NO_DISPLAY)
return EGL_NO_DISPLAY;
if (!meta_egl_initialize (egl, egl_display, error))
return EGL_NO_DISPLAY;
if (!meta_egl_has_extensions (egl, egl_display, NULL,
"EGL_KHR_no_config_context",
NULL))
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Missing EGL extension required for surfaceless context: "
"EGL_KHR_no_config_context");
return EGL_NO_DISPLAY;
}
return egl_display;
}
static MetaRendererNativeGpuData *
create_renderer_gpu_data_surfaceless (MetaRendererNative *renderer_native,
GError **error)
{
MetaRendererNativeGpuData *renderer_gpu_data;
EGLDisplay egl_display;
egl_display = init_surfaceless_egl_display (renderer_native, error);
if (egl_display == EGL_NO_DISPLAY)
return NULL;
renderer_gpu_data = meta_create_renderer_native_gpu_data ();
renderer_gpu_data->renderer_native = renderer_native;
renderer_gpu_data->mode = META_RENDERER_NATIVE_MODE_SURFACELESS;
renderer_gpu_data->egl_display = egl_display;
return renderer_gpu_data;
}
#ifdef HAVE_EGL_DEVICE
static const char *
get_drm_device_file (MetaEgl *egl,
EGLDeviceEXT device,
GError **error)
{
if (!meta_egl_egl_device_has_extensions (egl, device,
NULL,
"EGL_EXT_device_drm",
NULL))
{
g_set_error (error, G_IO_ERROR,
G_IO_ERROR_FAILED,
"Missing required EGLDevice extension EGL_EXT_device_drm");
return NULL;
}
return meta_egl_query_device_string (egl, device,
EGL_DRM_DEVICE_FILE_EXT,
error);
}
static EGLDeviceEXT
find_egl_device (MetaRendererNative *renderer_native,
MetaDeviceFile *device_file,
GError **error)
{
MetaEgl *egl = meta_renderer_native_get_egl (renderer_native);
const char **missing_extensions;
EGLint num_devices;
EGLDeviceEXT *devices;
const char *kms_file_path;
EGLDeviceEXT device;
EGLint i;
if (!meta_egl_has_extensions (egl,
EGL_NO_DISPLAY,
&missing_extensions,
"EGL_EXT_device_base",
NULL))
{
char *missing_extensions_str;
missing_extensions_str = g_strjoinv (", ", (char **) missing_extensions);
g_set_error (error, G_IO_ERROR,
G_IO_ERROR_FAILED,
"Missing EGL extensions required for EGLDevice renderer: %s",
missing_extensions_str);
g_free (missing_extensions_str);
g_free (missing_extensions);
return EGL_NO_DEVICE_EXT;
}
if (!meta_egl_query_devices (egl, 0, NULL, &num_devices, error))
return EGL_NO_DEVICE_EXT;
devices = g_new0 (EGLDeviceEXT, num_devices);
if (!meta_egl_query_devices (egl, num_devices, devices, &num_devices,
error))
{
g_free (devices);
return EGL_NO_DEVICE_EXT;
}
kms_file_path = meta_device_file_get_path (device_file);
device = EGL_NO_DEVICE_EXT;
for (i = 0; i < num_devices; i++)
{
const char *egl_device_drm_path;
g_clear_error (error);
egl_device_drm_path = get_drm_device_file (egl, devices[i], error);
if (!egl_device_drm_path)
continue;
if (g_str_equal (egl_device_drm_path, kms_file_path))
{
device = devices[i];
break;
}
}
g_free (devices);
if (device == EGL_NO_DEVICE_EXT)
{
if (!*error)
g_set_error (error, G_IO_ERROR,
G_IO_ERROR_FAILED,
"Failed to find matching EGLDeviceEXT");
return EGL_NO_DEVICE_EXT;
}
return device;
}
static EGLDisplay
get_egl_device_display (MetaRendererNative *renderer_native,
MetaDeviceFile *device_file,
EGLDeviceEXT egl_device,
GError **error)
{
MetaEgl *egl = meta_renderer_native_get_egl (renderer_native);
int kms_fd = meta_device_file_get_fd (device_file);
EGLint platform_attribs[] = {
EGL_DRM_MASTER_FD_EXT, kms_fd,
EGL_NONE
};
return meta_egl_get_platform_display (egl, EGL_PLATFORM_DEVICE_EXT,
(void *) egl_device,
platform_attribs,
error);
}
static int
count_drm_devices (MetaRendererNative *renderer_native)
{
MetaRenderer *renderer = META_RENDERER (renderer_native);
MetaBackend *backend = meta_renderer_get_backend (renderer);
return g_list_length (meta_backend_get_gpus (backend));
}
static MetaRendererNativeGpuData *
create_renderer_gpu_data_egl_device (MetaRendererNative *renderer_native,
MetaDeviceFile *device_file,
GError **error)
{
MetaEgl *egl = meta_renderer_native_get_egl (renderer_native);
const char **missing_extensions;
EGLDeviceEXT egl_device;
EGLDisplay egl_display;
MetaRendererNativeGpuData *renderer_gpu_data;
if (count_drm_devices (renderer_native) != 1)
{
g_set_error (error, G_IO_ERROR,
G_IO_ERROR_FAILED,
"EGLDevice currently only works with single GPU systems");
return NULL;
}
egl_device = find_egl_device (renderer_native, device_file, error);
if (egl_device == EGL_NO_DEVICE_EXT)
return NULL;
egl_display = get_egl_device_display (renderer_native, device_file,
egl_device, error);
if (egl_display == EGL_NO_DISPLAY)
return NULL;
if (!meta_egl_initialize (egl, egl_display, error))
return NULL;
if (!meta_egl_has_extensions (egl,
egl_display,
&missing_extensions,
"EGL_NV_output_drm_flip_event",
"EGL_EXT_output_base",
"EGL_EXT_output_drm",
"EGL_KHR_stream",
"EGL_KHR_stream_producer_eglsurface",
"EGL_EXT_stream_consumer_egloutput",
"EGL_EXT_stream_acquire_mode",
NULL))
{
char *missing_extensions_str;
missing_extensions_str = g_strjoinv (", ", (char **) missing_extensions);
g_set_error (error, G_IO_ERROR,
G_IO_ERROR_FAILED,
"Missing EGL extensions required for EGLDevice renderer: %s",
missing_extensions_str);
meta_egl_terminate (egl, egl_display, NULL);
g_free (missing_extensions_str);
g_free (missing_extensions);
return NULL;
}
renderer_gpu_data = meta_create_renderer_native_gpu_data ();
renderer_gpu_data->device_file = meta_device_file_acquire (device_file);
renderer_gpu_data->renderer_native = renderer_native;
renderer_gpu_data->egl.device = egl_device;
renderer_gpu_data->mode = META_RENDERER_NATIVE_MODE_EGL_DEVICE;
renderer_gpu_data->egl_display = egl_display;
return renderer_gpu_data;
}
#endif /* HAVE_EGL_DEVICE */
static MetaRendererNativeGpuData *
meta_renderer_native_create_renderer_gpu_data (MetaRendererNative *renderer_native,
MetaGpuKms *gpu_kms,
GError **error)
{
MetaRenderer *renderer = META_RENDERER (renderer_native);
MetaBackend *backend = meta_renderer_get_backend (renderer);
MetaDevicePool *device_pool =
meta_backend_native_get_device_pool (META_BACKEND_NATIVE (backend));
MetaRendererNativeGpuData *renderer_gpu_data;
MetaDeviceFileFlags device_file_flags = META_DEVICE_FILE_FLAG_NONE;
g_autoptr (MetaDeviceFile) device_file = NULL;
GError *gbm_error = NULL;
#ifdef HAVE_EGL_DEVICE
GError *egl_device_error = NULL;
#endif
if (!gpu_kms)
return create_renderer_gpu_data_surfaceless (renderer_native, error);
if (!(meta_kms_device_get_flags (meta_gpu_kms_get_kms_device (gpu_kms)) &
META_KMS_DEVICE_FLAG_NO_MODE_SETTING))
device_file_flags = META_DEVICE_FILE_FLAG_TAKE_CONTROL;
device_file = meta_device_pool_open (device_pool,
meta_gpu_kms_get_file_path (gpu_kms),
device_file_flags,
error);
if (!device_file)
return NULL;
#ifdef HAVE_EGL_DEVICE
/* Try to initialize the EGLDevice backend first. Whenever we use a
* non-NVIDIA GPU, the EGLDevice enumeration function won't find a match, and
* we'll fall back to GBM (which will always succeed as it has a software
* rendering fallback)
*/
renderer_gpu_data = create_renderer_gpu_data_egl_device (renderer_native,
device_file,
&egl_device_error);
if (renderer_gpu_data)
return renderer_gpu_data;
#endif
renderer_gpu_data = create_renderer_gpu_data_gbm (renderer_native,
device_file,
&gbm_error);
if (renderer_gpu_data)
{
#ifdef HAVE_EGL_DEVICE
g_error_free (egl_device_error);
#endif
return renderer_gpu_data;
}
g_set_error (error, G_IO_ERROR,
G_IO_ERROR_FAILED,
"Failed to initialize renderer: "
"%s"
#ifdef HAVE_EGL_DEVICE
", %s"
#endif
, gbm_error->message
#ifdef HAVE_EGL_DEVICE
, egl_device_error->message
#endif
);
g_error_free (gbm_error);
#ifdef HAVE_EGL_DEVICE
g_error_free (egl_device_error);
#endif
return NULL;
}
static gboolean
create_renderer_gpu_data (MetaRendererNative *renderer_native,
MetaGpuKms *gpu_kms,
GError **error)
{
MetaRendererNativeGpuData *renderer_gpu_data;
renderer_gpu_data =
meta_renderer_native_create_renderer_gpu_data (renderer_native,
gpu_kms,
error);
if (!renderer_gpu_data)
return FALSE;
g_hash_table_insert (renderer_native->gpu_datas,
gpu_kms,
renderer_gpu_data);
return TRUE;
}
static gboolean
meta_renderer_native_ensure_gpu_data (MetaRendererNative *renderer_native,
MetaGpuKms *gpu_kms,
GError **error)
{
MetaRendererNativeGpuData *renderer_gpu_data;
renderer_gpu_data = g_hash_table_lookup (renderer_native->gpu_datas, gpu_kms);
if (renderer_gpu_data)
return TRUE;
return create_renderer_gpu_data (renderer_native, gpu_kms, error);
}
static void
on_gpu_added (MetaBackendNative *backend_native,
MetaGpuKms *gpu_kms,
MetaRendererNative *renderer_native)
{
MetaBackend *backend = META_BACKEND (backend_native);
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);
GError *error = NULL;
if (!create_renderer_gpu_data (renderer_native, gpu_kms, &error))
{
g_warning ("on_gpu_added: could not create gpu_data for gpu %s: %s",
meta_gpu_kms_get_file_path (gpu_kms), error->message);
g_clear_error (&error);
}
_cogl_winsys_egl_ensure_current (cogl_display);
}
static void
on_power_save_mode_changed (MetaMonitorManager *monitor_manager,
MetaRendererNative *renderer_native)
{
MetaRenderer *renderer = META_RENDERER (renderer_native);
MetaBackend *backend = meta_renderer_get_backend (renderer);
MetaBackendNative *backend_native = META_BACKEND_NATIVE (backend);
MetaKms *kms = meta_backend_native_get_kms (backend_native);
MetaPowerSave power_save_mode;
power_save_mode = meta_monitor_manager_get_power_save_mode (monitor_manager);
if (power_save_mode == META_POWER_SAVE_ON)
meta_renderer_native_queue_modes_reset (renderer_native);
else
meta_kms_discard_pending_page_flips (kms);
}
void
meta_renderer_native_reset_modes (MetaRendererNative *renderer_native)
{
MetaRenderer *renderer = META_RENDERER (renderer_native);
MetaBackend *backend = meta_renderer_get_backend (renderer);
MetaBackendNative *backend_native = META_BACKEND_NATIVE (backend);
MetaKms *kms = meta_backend_native_get_kms (backend_native);
unset_disabled_crtcs (backend, kms);
}
static MetaGpuKms *
choose_primary_gpu_unchecked (MetaBackend *backend,
MetaRendererNative *renderer_native)
{
GList *gpus = meta_backend_get_gpus (backend);
GList *l;
int allow_sw;
/*
* Check first hardware rendering devices, and if none found,
* then software rendering devices.
*/
for (allow_sw = 0; allow_sw < 2; allow_sw++)
{
/* First check if one was explicitly configured. */
for (l = gpus; l; l = l->next)
{
MetaGpuKms *gpu_kms = META_GPU_KMS (l->data);
MetaKmsDevice *kms_device = meta_gpu_kms_get_kms_device (gpu_kms);
if (meta_kms_device_get_flags (kms_device) &
META_KMS_DEVICE_FLAG_PREFERRED_PRIMARY)
{
g_message ("GPU %s selected primary given udev rule",
meta_gpu_kms_get_file_path (gpu_kms));
return gpu_kms;
}
}
/* Prefer a platform device */
for (l = gpus; l; l = l->next)
{
MetaGpuKms *gpu_kms = META_GPU_KMS (l->data);
if (meta_gpu_kms_is_platform_device (gpu_kms) &&
(allow_sw == 1 ||
gpu_kms_is_hardware_rendering (renderer_native, gpu_kms)))
{
g_message ("Integrated GPU %s selected as primary",
meta_gpu_kms_get_file_path (gpu_kms));
return gpu_kms;
}
}
/* Otherwise a device we booted with */
for (l = gpus; l; l = l->next)
{
MetaGpuKms *gpu_kms = META_GPU_KMS (l->data);
if (meta_gpu_kms_is_boot_vga (gpu_kms) &&
(allow_sw == 1 ||
gpu_kms_is_hardware_rendering (renderer_native, gpu_kms)))
{
g_message ("Boot VGA GPU %s selected as primary",
meta_gpu_kms_get_file_path (gpu_kms));
return gpu_kms;
}
}
/* Fall back to any device */
for (l = gpus; l; l = l->next)
{
MetaGpuKms *gpu_kms = META_GPU_KMS (l->data);
if (allow_sw == 1 ||
gpu_kms_is_hardware_rendering (renderer_native, gpu_kms))
{
g_message ("GPU %s selected as primary",
meta_gpu_kms_get_file_path (gpu_kms));
return gpu_kms;
}
}
}
g_assert_not_reached ();
return NULL;
}
static MetaGpuKms *
choose_primary_gpu (MetaBackend *backend,
MetaRendererNative *renderer_native,
GError **error)
{
MetaGpuKms *gpu_kms;
MetaRendererNativeGpuData *renderer_gpu_data;
gpu_kms = choose_primary_gpu_unchecked (backend, renderer_native);
renderer_gpu_data = meta_renderer_native_get_gpu_data (renderer_native,
gpu_kms);
if (renderer_gpu_data->egl_display == EGL_NO_DISPLAY)
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"The GPU %s chosen as primary is not supported by EGL.",
meta_gpu_kms_get_file_path (gpu_kms));
return NULL;
}
return gpu_kms;
}
static gboolean
meta_renderer_native_initable_init (GInitable *initable,
GCancellable *cancellable,
GError **error)
{
MetaRendererNative *renderer_native = META_RENDERER_NATIVE (initable);
MetaRenderer *renderer = META_RENDERER (renderer_native);
MetaBackend *backend = meta_renderer_get_backend (renderer);
GList *gpus;
GList *l;
gpus = meta_backend_get_gpus (backend);
if (gpus)
{
const char *use_kms_modifiers_debug_env;
for (l = gpus; l; l = l->next)
{
MetaGpuKms *gpu_kms = META_GPU_KMS (l->data);
if (!create_renderer_gpu_data (renderer_native, gpu_kms, error))
return FALSE;
}
renderer_native->primary_gpu_kms = choose_primary_gpu (backend,
renderer_native,
error);
if (!renderer_native->primary_gpu_kms)
return FALSE;
use_kms_modifiers_debug_env = g_getenv ("MUTTER_DEBUG_USE_KMS_MODIFIERS");
if (use_kms_modifiers_debug_env)
{
renderer_native->use_modifiers =
g_strcmp0 (use_kms_modifiers_debug_env, "1") == 0;
}
else
{
renderer_native->use_modifiers =
!meta_gpu_kms_disable_modifiers (renderer_native->primary_gpu_kms);
}
meta_topic (META_DEBUG_KMS, "Usage of KMS modifiers is %s",
renderer_native->use_modifiers ? "enabled" : "disabled");
}
else
{
if (!create_renderer_gpu_data (renderer_native, NULL, error))
return FALSE;
}
return TRUE;
}
static void
initable_iface_init (GInitableIface *initable_iface)
{
initable_iface->init = meta_renderer_native_initable_init;
}
static void
meta_renderer_native_finalize (GObject *object)
{
MetaRendererNative *renderer_native = META_RENDERER_NATIVE (object);
clear_kept_alive_onscreens (renderer_native);
g_clear_list (&renderer_native->power_save_page_flip_onscreens,
g_object_unref);
g_clear_handle_id (&renderer_native->power_save_page_flip_source_id,
g_source_remove);
g_list_free (renderer_native->pending_mode_set_views);
g_hash_table_destroy (renderer_native->gpu_datas);
g_clear_object (&renderer_native->gles3);
G_OBJECT_CLASS (meta_renderer_native_parent_class)->finalize (object);
}
static void
meta_renderer_native_constructed (GObject *object)
{
MetaRendererNative *renderer_native = META_RENDERER_NATIVE (object);
MetaRenderer *renderer = META_RENDERER (renderer_native);
MetaBackend *backend = meta_renderer_get_backend (renderer);
MetaSettings *settings = meta_backend_get_settings (backend);
MetaMonitorManager *monitor_manager =
meta_backend_get_monitor_manager (backend);
if (meta_settings_is_experimental_feature_enabled (
settings, META_EXPERIMENTAL_FEATURE_KMS_MODIFIERS))
renderer_native->use_modifiers = TRUE;
g_signal_connect (backend, "gpu-added",
G_CALLBACK (on_gpu_added), renderer_native);
g_signal_connect (monitor_manager, "power-save-mode-changed",
G_CALLBACK (on_power_save_mode_changed), renderer_native);
G_OBJECT_CLASS (meta_renderer_native_parent_class)->constructed (object);
}
static void
meta_renderer_native_init (MetaRendererNative *renderer_native)
{
renderer_native->gpu_datas =
g_hash_table_new_full (NULL, NULL,
NULL,
(GDestroyNotify) meta_renderer_native_gpu_data_free);
}
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->finalize = meta_renderer_native_finalize;
object_class->constructed = meta_renderer_native_constructed;
renderer_class->create_cogl_renderer = meta_renderer_native_create_cogl_renderer;
renderer_class->create_view = meta_renderer_native_create_view;
renderer_class->rebuild_views = meta_renderer_native_rebuild_views;
}
MetaRendererNative *
meta_renderer_native_new (MetaBackendNative *backend_native,
GError **error)
{
return g_initable_new (META_TYPE_RENDERER_NATIVE,
NULL,
error,
"backend", backend_native,
NULL);
}
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