1 files changed, 152 insertions, 0 deletions
diff --git a/gfx/gl/SharedSurface.cpp b/gfx/gl/SharedSurface.cpp
new file mode 100644
index 0000000000..32f480a44d
--- /dev/null
+++ b/gfx/gl/SharedSurface.cpp
@@ -0,0 +1,152 @@
+/* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 4; -*- */
+/* 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/. */
+
+#include "SharedSurface.h"
+
+#include "../2d/2D.h"
+#include "GLBlitHelper.h"
+#include "GLContext.h"
+#include "GLReadTexImageHelper.h"
+#include "GLScreenBuffer.h"
+#include "nsThreadUtils.h"
+#include "ScopedGLHelpers.h"
+#include "SharedSurfaceGL.h"
+#include "SharedSurfaceEGL.h"
+#include "mozilla/gfx/Logging.h"
+#include "mozilla/layers/CompositorTypes.h"
+#include "mozilla/layers/TextureClientSharedSurface.h"
+#include "mozilla/layers/TextureForwarder.h"
+#include "mozilla/StaticPrefs_webgl.h"
+#include "mozilla/Unused.h"
+#include "VRManagerChild.h"
+
+#ifdef XP_WIN
+#  include "SharedSurfaceANGLE.h"
+#  include "SharedSurfaceD3D11Interop.h"
+#endif
+
+#ifdef XP_MACOSX
+#  include "SharedSurfaceIO.h"
+#endif
+
+#ifdef MOZ_WAYLAND
+#  include "gfxPlatformGtk.h"
+#  include "SharedSurfaceDMABUF.h"
+#endif
+
+#ifdef MOZ_WIDGET_ANDROID
+#  include "SharedSurfaceAndroidHardwareBuffer.h"
+#endif
+
+namespace mozilla {
+namespace gl {
+
+////////////////////////////////////////////////////////////////////////
+// SharedSurface
+
+SharedSurface::SharedSurface(const SharedSurfaceDesc& desc,
+                             UniquePtr<MozFramebuffer> fb)
+    : mDesc(desc), mFb(std::move(fb)) {}
+
+SharedSurface::~SharedSurface() = default;
+
+void SharedSurface::LockProd() {
+  MOZ_ASSERT(!mIsLocked);
+
+  LockProdImpl();
+
+  mDesc.gl->LockSurface(this);
+  mIsLocked = true;
+}
+
+void SharedSurface::UnlockProd() {
+  if (!mIsLocked) return;
+
+  UnlockProdImpl();
+
+  mDesc.gl->UnlockSurface(this);
+  mIsLocked = false;
+}
+
+////////////////////////////////////////////////////////////////////////
+// SurfaceFactory
+
+/* static */
+UniquePtr<SurfaceFactory> SurfaceFactory::Create(
+    GLContext* const pGl, const layers::TextureType consumerType) {
+  auto& gl = *pGl;
+
+  switch (consumerType) {
+    case layers::TextureType::D3D11:
+#ifdef XP_WIN
+      if (gl.IsANGLE()) {
+        return SurfaceFactory_ANGLEShareHandle::Create(gl);
+      }
+      if (StaticPrefs::webgl_dxgl_enabled()) {
+        return SurfaceFactory_D3D11Interop::Create(gl);
+      }
+#endif
+      return nullptr;
+
+    case layers::TextureType::MacIOSurface:
+#ifdef XP_MACOSX
+      return MakeUnique<SurfaceFactory_IOSurface>(gl);
+#else
+      return nullptr;
+#endif
+
+    case layers::TextureType::DMABUF:
+#ifdef MOZ_WAYLAND
+      if (gl.GetContextType() == GLContextType::EGL &&
+          widget::DMABufDevice::IsDMABufWebGLEnabled()) {
+        return SurfaceFactory_DMABUF::Create(gl);
+      }
+#endif
+      return nullptr;
+
+    case layers::TextureType::AndroidNativeWindow:
+#ifdef MOZ_WIDGET_ANDROID
+      return MakeUnique<SurfaceFactory_SurfaceTexture>(gl);
+#else
+      return nullptr;
+#endif
+
+    case layers::TextureType::AndroidHardwareBuffer:
+#ifdef MOZ_WIDGET_ANDROID
+      if (XRE_IsGPUProcess()) {
+        // Enable SharedSurface of AndroidHardwareBuffer only in GPU process.
+        return SurfaceFactory_AndroidHardwareBuffer::Create(gl);
+      }
+#endif
+      return nullptr;
+
+    case layers::TextureType::EGLImage:
+#ifdef MOZ_WIDGET_ANDROID
+      if (XRE_IsParentProcess()) {
+        return SurfaceFactory_EGLImage::Create(gl);
+      }
+#endif
+      return nullptr;
+
+    case layers::TextureType::Unknown:
+    case layers::TextureType::Last:
+      break;
+  }
+
+#ifdef MOZ_X11
+  // Silence a warning.
+  Unused << gl;
+#endif
+
+  return nullptr;
+}
+
+SurfaceFactory::SurfaceFactory(const PartialSharedSurfaceDesc& partialDesc)
+    : mDesc(partialDesc), mMutex("SurfaceFactor::mMutex") {}
+
+SurfaceFactory::~SurfaceFactory() = default;
+
+}  // namespace gl
+}  // namespace mozilla