video: add udmabuf allocator

src/gfx_apis/gl/renderer/context.rs

@@ -1,5 +1,6 @@
 use {
     crate::{
+        allocator::Allocator,
         format::{Format, XRGB8888},
         gfx_api::{
             BufferResvUser, GfxApiOpt, GfxContext, GfxError, GfxFormat, GfxFramebuffer, GfxImage,
@@ -240,8 +241,8 @@ impl GfxContext for GlRenderContext {
         self.reset_status()
     }
 
-    fn render_node(&self) -> Rc<CString> {
-        self.render_node()
+    fn render_node(&self) -> Option<Rc<CString>> {
+        Some(self.render_node())
     }
 
     fn formats(&self) -> Rc<AHashMap<u32, GfxFormat>> {
@@ -278,8 +279,8 @@ impl GfxContext for GlRenderContext {
             .map_err(|e| e.into())
     }
 
-    fn gbm(&self) -> &GbmDevice {
-        &self.gbm
+    fn allocator(&self) -> Rc<dyn Allocator> {
+        self.gbm.clone()
     }
 
     fn gfx_api(&self) -> GfxApi {
@@ -299,7 +300,7 @@ impl GfxContext for GlRenderContext {
         Ok(Rc::new(Framebuffer { ctx: self, gl: fb }))
     }
 
-    fn sync_obj_ctx(&self) -> &Rc<SyncObjCtx> {
-        &self.sync_ctx
+    fn sync_obj_ctx(&self) -> Option<&Rc<SyncObjCtx>> {
+        Some(&self.sync_ctx)
     }
 }

src/gfx_apis/vulkan.rs

@@ -17,6 +17,7 @@ mod util;
 
 use {
     crate::{
+        allocator::Allocator,
         async_engine::AsyncEngine,
         format::Format,
         gfx_api::{
@@ -31,7 +32,7 @@ use {
         video::{
             dmabuf::DmaBuf,
             drm::{sync_obj::SyncObjCtx, Drm, DrmError},
-            gbm::{GbmDevice, GbmError},
+            gbm::GbmError,
         },
     },
     ahash::AHashMap,
@@ -209,8 +210,8 @@ impl GfxContext for Context {
         None
     }
 
-    fn render_node(&self) -> Rc<CString> {
-        self.0.device.render_node.clone()
+    fn render_node(&self) -> Option<Rc<CString>> {
+        Some(self.0.device.render_node.clone())
     }
 
     fn formats(&self) -> Rc<AHashMap<u32, GfxFormat>> {
@@ -255,8 +256,8 @@ impl GfxContext for Context {
         Ok(tex as _)
     }
 
-    fn gbm(&self) -> &GbmDevice {
-        &self.0.device.gbm
+    fn allocator(&self) -> Rc<dyn Allocator> {
+        self.0.device.gbm.clone()
     }
 
     fn gfx_api(&self) -> GfxApi {
@@ -276,8 +277,8 @@ impl GfxContext for Context {
         Ok(fb)
     }
 
-    fn sync_obj_ctx(&self) -> &Rc<SyncObjCtx> {
-        &self.0.device.sync_ctx
+    fn sync_obj_ctx(&self) -> Option<&Rc<SyncObjCtx>> {
+        Some(&self.0.device.sync_ctx)
     }
 }
 

src/gfx_apis/vulkan/device.rs

@@ -49,7 +49,7 @@ use {
 pub struct VulkanDevice {
     pub(super) physical_device: PhysicalDevice,
     pub(super) render_node: Rc<CString>,
-    pub(super) gbm: GbmDevice,
+    pub(super) gbm: Rc<GbmDevice>,
     pub(super) sync_ctx: Rc<SyncObjCtx>,
     pub(super) instance: Rc<VulkanInstance>,
     pub(super) device: Device,
@@ -276,7 +276,7 @@ impl VulkanInstance {
             physical_device: phy_dev,
             render_node,
             sync_ctx: Rc::new(SyncObjCtx::new(gbm.drm.fd())),
-            gbm,
+            gbm: Rc::new(gbm),
             instance: self.clone(),
             device,
             external_memory_fd,