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drm-buffer/gbm: Support both surface and standalone buffers

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Surface buffers are created with meta_drm_buffer_new_acquire(), taking a
gbm_surface acquiring the gbm itself, and meta_drm_buffer_new_take()
that takes over ownership of a passed gbm_bo.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/798
This commit is contained in:
Jonas Ådahl 2019-08-20 21:28:19 +02:00
parent 47002bf0cd
commit 282aada13a
3 changed files with 72 additions and 34 deletions
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68
src/backends/native/meta-drm-buffer-gbm.c
View File

@ -53,22 +53,12 @@ meta_drm_buffer_gbm_get_bo (MetaDrmBufferGbm *buffer_gbm)
}
static gboolean
acquire_swapped_buffer (MetaDrmBufferGbm *buffer_gbm,
init_fb_id (MetaDrmBufferGbm *buffer_gbm,
struct gbm_bo *bo,
gboolean use_modifiers,
GError **error)
{
MetaGpuKmsFBArgs fb_args = { 0, };
struct gbm_bo *bo;
bo = gbm_surface_lock_front_buffer (buffer_gbm->surface);
if (!bo)
{
g_set_error (error,
G_IO_ERROR,
G_IO_ERROR_FAILED,
"gbm_surface_lock_front_buffer failed");
return FALSE;
}
if (gbm_bo_get_handle_for_plane (bo, 0).s32 == -1)
{
@ -99,18 +89,31 @@ acquire_swapped_buffer (MetaDrmBufferGbm *buffer_gbm,
use_modifiers,
&fb_args,
&buffer_gbm->fb_id, error))
{
gbm_surface_release_buffer (buffer_gbm->surface, bo);
return FALSE;
}
buffer_gbm->bo = bo;
return TRUE;
}
static gboolean
lock_front_buffer (MetaDrmBufferGbm *buffer_gbm,
gboolean use_modifiers,
GError **error)
{
buffer_gbm->bo = gbm_surface_lock_front_buffer (buffer_gbm->surface);
if (!buffer_gbm->bo)
{
g_set_error (error,
G_IO_ERROR,
G_IO_ERROR_FAILED,
"gbm_surface_lock_front_buffer failed");
return FALSE;
}
return init_fb_id (buffer_gbm, buffer_gbm->bo, use_modifiers, error);
}
MetaDrmBufferGbm *
meta_drm_buffer_gbm_new (MetaGpuKms *gpu_kms,
meta_drm_buffer_gbm_new_lock_front (MetaGpuKms *gpu_kms,
struct gbm_surface *gbm_surface,
gboolean use_modifiers,
GError **error)
@ -121,7 +124,7 @@ meta_drm_buffer_gbm_new (MetaGpuKms *gpu_kms,
buffer_gbm->gpu_kms = gpu_kms;
buffer_gbm->surface = gbm_surface;
if (!acquire_swapped_buffer (buffer_gbm, use_modifiers, error))
if (!lock_front_buffer (buffer_gbm, use_modifiers, error))
{
g_object_unref (buffer_gbm);
return NULL;
@ -130,6 +133,28 @@ meta_drm_buffer_gbm_new (MetaGpuKms *gpu_kms,
return buffer_gbm;
}
MetaDrmBufferGbm *
meta_drm_buffer_gbm_new_take (MetaGpuKms *gpu_kms,
struct gbm_bo *bo,
gboolean use_modifiers,
GError **error)
{
MetaDrmBufferGbm *buffer_gbm;
buffer_gbm = g_object_new (META_TYPE_DRM_BUFFER_GBM, NULL);
buffer_gbm->gpu_kms = gpu_kms;
if (!init_fb_id (buffer_gbm, bo, use_modifiers, error))
{
g_object_unref (buffer_gbm);
return NULL;
}
buffer_gbm->bo = bo;
return buffer_gbm;
}
static uint32_t
meta_drm_buffer_gbm_get_fb_id (MetaDrmBuffer *buffer)
{
@ -150,7 +175,12 @@ meta_drm_buffer_gbm_finalize (GObject *object)
}
if (buffer_gbm->bo)
{
if (buffer_gbm->surface)
gbm_surface_release_buffer (buffer_gbm->surface, buffer_gbm->bo);
else
gbm_bo_destroy (buffer_gbm->bo);
}
G_OBJECT_CLASS (meta_drm_buffer_gbm_parent_class)->finalize (object);
}

8
src/backends/native/meta-drm-buffer-gbm.h
View File

@ -33,11 +33,17 @@ G_DECLARE_FINAL_TYPE (MetaDrmBufferGbm,
META, DRM_BUFFER_GBM,
MetaDrmBuffer)
MetaDrmBufferGbm * meta_drm_buffer_gbm_new (MetaGpuKms *gpu_kms,
MetaDrmBufferGbm * meta_drm_buffer_gbm_new_lock_front (MetaGpuKms *gpu_kms,
struct gbm_surface *gbm_surface,
gboolean use_modifiers,
GError **error);
MetaDrmBufferGbm * meta_drm_buffer_gbm_new_take (MetaGpuKms *gpu_kms,
struct gbm_bo *gbm_bo,
gboolean use_modifiers,
GError **error);
struct gbm_bo * meta_drm_buffer_gbm_get_bo (MetaDrmBufferGbm *buffer_gbm);
#endif /* META_DRM_BUFFER_GBM_H */

10
src/backends/native/meta-renderer-native.c
View File

@ -1621,13 +1621,14 @@ copy_shared_framebuffer_gpu (CoglOnscreen *onscreen,
return;
}
buffer_gbm = meta_drm_buffer_gbm_new (secondary_gpu_state->gpu_kms,
buffer_gbm =
meta_drm_buffer_gbm_new_lock_front (secondary_gpu_state->gpu_kms,
secondary_gpu_state->gbm.surface,
renderer_native->use_modifiers,
&error);
if (!buffer_gbm)
{
g_warning ("meta_drm_buffer_gbm_new failed: %s",
g_warning ("meta_drm_buffer_gbm_new_lock_front failed: %s",
error->message);
g_error_free (error);
return;
@ -2071,13 +2072,14 @@ meta_onscreen_native_swap_buffers_with_damage (CoglOnscreen *onscreen,
g_warn_if_fail (onscreen_native->gbm.next_fb == NULL);
g_clear_object (&onscreen_native->gbm.next_fb);
buffer_gbm = meta_drm_buffer_gbm_new (render_gpu,
buffer_gbm =
meta_drm_buffer_gbm_new_lock_front (render_gpu,
onscreen_native->gbm.surface,
renderer_native->use_modifiers,
&error);
if (!buffer_gbm)
{
g_warning ("meta_drm_buffer_gbm_new failed: %s",
g_warning ("meta_drm_buffer_gbm_new_lock_front failed: %s",
error->message);
return;
}