Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 153 insertions, 0 deletions

diff --git a/gfx/layers/ipc/ShadowLayerUtilsX11.cpp b/gfx/layers/ipc/ShadowLayerUtilsX11.cpp
new file mode 100644
index 0000000000..25f6ceba21
--- /dev/null
+++ b/gfx/layers/ipc/ShadowLayerUtilsX11.cpp
@@ -0,0 +1,153 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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 "ShadowLayerUtilsX11.h"
+#include <X11/X.h>                   // for Drawable, XID
+#include <X11/Xlib.h>                // for Display, Visual, etc
+#include <X11/extensions/Xrender.h>  // for XRenderPictFormat, etc
+#include <X11/extensions/render.h>   // for PictFormat
+#include "cairo-xlib.h"
+#include "X11UndefineNone.h"
+#include <stdint.h>             // for uint32_t
+#include "GLDefs.h"             // for GLenum
+#include "gfxPlatform.h"        // for gfxPlatform
+#include "gfxXlibSurface.h"     // for gfxXlibSurface
+#include "gfx2DGlue.h"          // for Moz2D transistion helpers
+#include "mozilla/X11Util.h"    // for DefaultXDisplay, FinishX, etc
+#include "mozilla/gfx/Point.h"  // for IntSize
+#include "mozilla/layers/CompositableForwarder.h"
+#include "mozilla/layers/CompositorTypes.h"    // for OpenMode
+#include "mozilla/layers/ISurfaceAllocator.h"  // for ISurfaceAllocator, etc
+#include "mozilla/layers/LayerManagerComposite.h"
+#include "mozilla/layers/LayersMessageUtils.h"
+#include "mozilla/layers/LayersSurfaces.h"  // for SurfaceDescriptor, etc
+#include "mozilla/layers/ShadowLayers.h"    // for ShadowLayerForwarder, etc
+#include "mozilla/mozalloc.h"               // for operator new
+#include "gfxEnv.h"
+#include "nsCOMPtr.h"  // for already_AddRefed
+#include "nsDebug.h"   // for NS_ERROR
+
+using namespace mozilla::gl;
+
+namespace mozilla {
+namespace gl {
+class GLContext;
+class TextureImage;
+}  // namespace gl
+
+namespace layers {
+
+// Return true if we're likely compositing using X and so should use
+// Xlib surfaces in shadow layers.
+static bool UsingXCompositing() {
+  if (!gfxEnv::LayersEnableXlibSurfaces()) {
+    return false;
+  }
+  return (gfxSurfaceType::Xlib ==
+          gfxPlatform::GetPlatform()->ScreenReferenceSurface()->GetType());
+}
+
+// LookReturn a pointer to |aFormat| that lives in the Xrender library.
+// All code using render formats assumes it doesn't need to copy.
+static XRenderPictFormat* GetXRenderPictFormatFromId(Display* aDisplay,
+                                                     PictFormat aFormatId) {
+  XRenderPictFormat tmplate;
+  tmplate.id = aFormatId;
+  return XRenderFindFormat(aDisplay, PictFormatID, &tmplate, 0);
+}
+
+SurfaceDescriptorX11::SurfaceDescriptorX11(gfxXlibSurface* aSurf,
+                                           bool aForwardGLX)
+    : mId(aSurf->XDrawable()), mSize(aSurf->GetSize()), mGLXPixmap(X11None) {
+  const XRenderPictFormat* pictFormat = aSurf->XRenderFormat();
+  if (pictFormat) {
+    mFormat = pictFormat->id;
+  } else {
+    mFormat = cairo_xlib_surface_get_visual(aSurf->CairoSurface())->visualid;
+  }
+
+  if (aForwardGLX) {
+    mGLXPixmap = aSurf->GetGLXPixmap();
+  }
+}
+
+SurfaceDescriptorX11::SurfaceDescriptorX11(Drawable aDrawable, XID aFormatID,
+                                           const gfx::IntSize& aSize)
+    : mId(aDrawable), mFormat(aFormatID), mSize(aSize), mGLXPixmap(X11None) {}
+
+already_AddRefed<gfxXlibSurface> SurfaceDescriptorX11::OpenForeign() const {
+  Display* display = DefaultXDisplay();
+  if (!display) {
+    return nullptr;
+  }
+  Screen* screen = DefaultScreenOfDisplay(display);
+
+  RefPtr<gfxXlibSurface> surf;
+  XRenderPictFormat* pictFormat = GetXRenderPictFormatFromId(display, mFormat);
+  if (pictFormat) {
+    surf = new gfxXlibSurface(screen, mId, pictFormat, mSize);
+  } else {
+    Visual* visual;
+    int depth;
+    FindVisualAndDepth(display, mFormat, &visual, &depth);
+    if (!visual) return nullptr;
+
+    surf = new gfxXlibSurface(display, mId, visual, mSize);
+  }
+
+  if (mGLXPixmap) surf->BindGLXPixmap(mGLXPixmap);
+
+  return surf->CairoStatus() ? nullptr : surf.forget();
+}
+
+/*static*/
+void ShadowLayerForwarder::PlatformSyncBeforeUpdate() {
+  if (UsingXCompositing()) {
+    // If we're using X surfaces, then we need to finish all pending
+    // operations on the back buffers before handing them to the
+    // parent, otherwise the surface might be used by the parent's
+    // Display in between two operations queued by our Display.
+    FinishX(DefaultXDisplay());
+  }
+}
+
+/*static*/
+void LayerManagerComposite::PlatformSyncBeforeReplyUpdate() {
+  if (UsingXCompositing()) {
+    // If we're using X surfaces, we need to finish all pending
+    // operations on the *front buffers* before handing them back to
+    // the child, even though they will be read operations.
+    // Otherwise, the child might start scribbling on new back buffers
+    // that are still participating in requests as old front buffers.
+    FinishX(DefaultXDisplay());
+  }
+}
+
+/*static*/
+bool LayerManagerComposite::SupportsDirectTexturing() { return false; }
+
+}  // namespace layers
+}  // namespace mozilla
+
+namespace IPC {
+
+void ParamTraits<mozilla::layers::SurfaceDescriptorX11>::Write(
+    Message* aMsg, const paramType& aParam) {
+  WriteParam(aMsg, aParam.mId);
+  WriteParam(aMsg, aParam.mSize);
+  WriteParam(aMsg, aParam.mFormat);
+  WriteParam(aMsg, aParam.mGLXPixmap);
+}
+
+bool ParamTraits<mozilla::layers::SurfaceDescriptorX11>::Read(
+    const Message* aMsg, PickleIterator* aIter, paramType* aResult) {
+  return (ReadParam(aMsg, aIter, &aResult->mId) &&
+          ReadParam(aMsg, aIter, &aResult->mSize) &&
+          ReadParam(aMsg, aIter, &aResult->mFormat) &&
+          ReadParam(aMsg, aIter, &aResult->mGLXPixmap));
+}
+
+}  // namespace IPC