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render-device: Add API to import other buffers

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This more or less is a helper for creating MetaDrmBufferImport objects
with a bit more friendly API.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1854>
This commit is contained in:
Jonas Ådahl 2021-05-05 15:38:22 +02:00
parent 802e7eb56f
commit 986588ade2
4 changed files with 57 additions and 0 deletions
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33
src/backends/native/meta-render-device-gbm.c
View File

@ -27,6 +27,7 @@
#include "backends/meta-backend-private.h"
#include "backends/native/meta-drm-buffer-gbm.h"
#include "backends/native/meta-drm-buffer-import.h"
struct _MetaRenderDeviceGbm
{
@ -77,6 +78,36 @@ initable_iface_init (GInitableIface *initable_iface)
initable_iface->init = meta_render_device_gbm_initable_init;
}
static MetaDrmBuffer *
meta_render_device_gbm_import_dma_buf (MetaRenderDevice *render_device,
MetaDrmBuffer *buffer,
GError **error)
{
MetaRenderDeviceGbm *render_device_gbm =
META_RENDER_DEVICE_GBM (render_device);
MetaDeviceFile *device_file;
MetaDrmBufferGbm *buffer_gbm;
MetaDrmBufferImport *buffer_import;
if (!META_IS_DRM_BUFFER_GBM (buffer))
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED,
"Can only import gbm backed DMA buffers");
return NULL;
}
device_file = meta_render_device_get_device_file (render_device);
buffer_gbm = META_DRM_BUFFER_GBM (buffer);
buffer_import = meta_drm_buffer_import_new (device_file,
render_device_gbm->gbm_device,
buffer_gbm,
error);
if (!buffer_import)
return NULL;
return META_DRM_BUFFER (buffer_import);
}
static EGLDisplay
meta_render_device_gbm_create_egl_display (MetaRenderDevice *render_device,
GError **error)
@ -168,6 +199,8 @@ meta_render_device_gbm_class_init (MetaRenderDeviceGbmClass *klass)
meta_render_device_gbm_create_egl_display;
render_device_class->allocate_dma_buf =
meta_render_device_gbm_allocate_dma_buf;
render_device_class->import_dma_buf =
meta_render_device_gbm_import_dma_buf;
}
static void

3
src/backends/native/meta-render-device-private.h
View File

@ -42,6 +42,9 @@ struct _MetaRenderDeviceClass
uint32_t format,
MetaDrmBufferFlags flags,
GError **error);
MetaDrmBuffer * (* import_dma_buf) (MetaRenderDevice *render_device,
MetaDrmBuffer *buffer,
GError **error);
};
#endif /* META_RENDER_DEVICE_PRIVATE_H */

17
src/backends/native/meta-render-device.c
View File

@ -364,3 +364,20 @@ meta_render_device_allocate_dma_buf (MetaRenderDevice *render_device,
return NULL;
}
MetaDrmBuffer *
meta_render_device_import_dma_buf (MetaRenderDevice *render_device,
MetaDrmBuffer *buffer,
GError **error)
{
MetaRenderDeviceClass *klass = META_RENDER_DEVICE_GET_CLASS (render_device);
if (klass->import_dma_buf)
return klass->import_dma_buf (render_device, buffer, error);
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Render device '%s' doesn't importing DMA buffers",
meta_render_device_get_name (render_device));
return NULL;
}

4
src/backends/native/meta-render-device.h
View File

@ -48,4 +48,8 @@ MetaDrmBuffer * meta_render_device_allocate_dma_buf (MetaRenderDevice *render
MetaDrmBufferFlags flags,
GError **error);
MetaDrmBuffer * meta_render_device_import_dma_buf (MetaRenderDevice *render_device,
MetaDrmBuffer *buffer,
GError **error);
#endif /* META_RENDER_DEVICE_H */