summaryrefslogtreecommitdiffstats
path: root/gfx/layers/SurfacePool.h
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /gfx/layers/SurfacePool.h
parentInitial commit. (diff)
downloadfirefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz
firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'gfx/layers/SurfacePool.h')
-rw-r--r--gfx/layers/SurfacePool.h76
1 files changed, 76 insertions, 0 deletions
diff --git a/gfx/layers/SurfacePool.h b/gfx/layers/SurfacePool.h
new file mode 100644
index 0000000000..eecb398d85
--- /dev/null
+++ b/gfx/layers/SurfacePool.h
@@ -0,0 +1,76 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_layers_SurfacePool_h
+#define mozilla_layers_SurfacePool_h
+
+#include "mozilla/Maybe.h"
+#include "mozilla/ThreadSafeWeakPtr.h"
+
+#include "GLTypes.h"
+#include "nsISupportsImpl.h"
+#include "nsRegion.h"
+
+namespace mozilla {
+
+namespace gl {
+class GLContext;
+} // namespace gl
+
+namespace layers {
+
+class SurfacePoolHandle;
+
+// A pool of surfaces for NativeLayers. Manages GL resources. Since GLContexts
+// are bound to their creator thread, a pool should not be shared across
+// threads. Call Create() to create an instance. Call GetHandleForGL() to obtain
+// a handle that can be passed to NativeLayerRoot::CreateLayer.
+class SurfacePool {
+ public:
+ NS_INLINE_DECL_THREADSAFE_REFCOUNTING(SurfacePool);
+
+#if defined(XP_MACOSX) || defined(MOZ_WAYLAND)
+ static RefPtr<SurfacePool> Create(size_t aPoolSizeLimit);
+#endif
+
+ // aGL can be nullptr.
+ virtual RefPtr<SurfacePoolHandle> GetHandleForGL(gl::GLContext* aGL) = 0;
+ virtual void DestroyGLResourcesForContext(gl::GLContext* aGL) = 0;
+
+ protected:
+ virtual ~SurfacePool() = default;
+};
+
+class SurfacePoolHandleCA;
+class SurfacePoolHandleWayland;
+
+// A handle to the process-wide surface pool. Users should create one handle per
+// OS window, and call OnBeginFrame() and OnEndFrame() on the handle at
+// appropriate times. OnBeginFrame() and OnEndFrame() should be called on the
+// thread that the surface pool was created on.
+// These handles are stored on NativeLayers that are created with them and keep
+// the SurfacePool alive.
+class SurfacePoolHandle {
+ public:
+ NS_INLINE_DECL_THREADSAFE_REFCOUNTING(SurfacePoolHandle);
+ virtual SurfacePoolHandleCA* AsSurfacePoolHandleCA() { return nullptr; }
+ virtual SurfacePoolHandleWayland* AsSurfacePoolHandleWayland() {
+ return nullptr;
+ }
+
+ virtual RefPtr<SurfacePool> Pool() = 0;
+
+ // Should be called every frame, in order to do rate-limited cleanup tasks.
+ virtual void OnBeginFrame() = 0;
+ virtual void OnEndFrame() = 0;
+
+ protected:
+ virtual ~SurfacePoolHandle() = default;
+};
+
+} // namespace layers
+} // namespace mozilla
+
+#endif // mozilla_layers_SurfacePool_h