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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /gfx/layers/basic/X11BasicCompositor.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'gfx/layers/basic/X11BasicCompositor.cpp')
-rw-r--r--gfx/layers/basic/X11BasicCompositor.cpp136
1 files changed, 136 insertions, 0 deletions
diff --git a/gfx/layers/basic/X11BasicCompositor.cpp b/gfx/layers/basic/X11BasicCompositor.cpp
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+++ b/gfx/layers/basic/X11BasicCompositor.cpp
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+/* -*- Mode: C++; tab-width: 20; 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/. */
+
+#include "X11BasicCompositor.h"
+#include "gfxPlatform.h"
+#include "gfx2DGlue.h"
+#include "gfxXlibSurface.h"
+#include "gfxImageSurface.h"
+#include "mozilla/X11Util.h"
+
+namespace mozilla {
+using namespace mozilla::gfx;
+
+namespace layers {
+
+bool
+X11DataTextureSourceBasic::Update(gfx::DataSourceSurface* aSurface,
+ nsIntRegion* aDestRegion,
+ gfx::IntPoint* aSrcOffset)
+{
+ // Reallocate our internal X11 surface if we don't have a DrawTarget yet,
+ // or if we changed surface size or format since last update.
+ if (!mBufferDrawTarget ||
+ (aSurface->GetSize() != mBufferDrawTarget->GetSize()) ||
+ (aSurface->GetFormat() != mBufferDrawTarget->GetFormat())) {
+
+ RefPtr<gfxASurface> surf;
+ gfxImageFormat imageFormat = SurfaceFormatToImageFormat(aSurface->GetFormat());
+ Display *display = DefaultXDisplay();
+ Screen *screen = DefaultScreenOfDisplay(display);
+ XRenderPictFormat *xrenderFormat =
+ gfxXlibSurface::FindRenderFormat(display, imageFormat);
+
+ if (xrenderFormat) {
+ surf = gfxXlibSurface::Create(screen, xrenderFormat,
+ aSurface->GetSize());
+ }
+
+ if (!surf) {
+ NS_WARNING("Couldn't create native surface, fallback to image surface");
+ surf = new gfxImageSurface(aSurface->GetSize(), imageFormat);
+ }
+
+ mBufferDrawTarget = gfxPlatform::GetPlatform()->
+ CreateDrawTargetForSurface(surf, aSurface->GetSize());
+ }
+
+ // Image contents have changed, upload to our DrawTarget
+ // If aDestRegion is null, means we're updating the whole surface
+ // Note : Incremental update with a source offset is only used on Mac.
+ NS_ASSERTION(!aSrcOffset, "SrcOffset should not be used with linux OMTC basic");
+
+ if (aDestRegion) {
+ for (auto iter = aDestRegion->RectIter(); !iter.Done(); iter.Next()) {
+ const IntRect& rect = iter.Get();
+ IntRect srcRect(rect.x, rect.y, rect.width, rect.height);
+ IntPoint dstPoint(rect.x, rect.y);
+
+ // We're uploading regions to our buffer, so let's just copy contents over
+ mBufferDrawTarget->CopySurface(aSurface, srcRect, dstPoint);
+ }
+ } else {
+ // We're uploading the whole buffer, so let's just copy the full surface
+ IntSize size = aSurface->GetSize();
+ mBufferDrawTarget->CopySurface(aSurface, IntRect(0, 0, size.width, size.height),
+ IntPoint(0, 0));
+ }
+
+ return true;
+}
+
+TextureSourceBasic*
+X11DataTextureSourceBasic::AsSourceBasic()
+{
+ return this;
+}
+
+IntSize
+X11DataTextureSourceBasic::GetSize() const
+{
+ if (!mBufferDrawTarget) {
+ NS_WARNING("Trying to query the size of an uninitialized TextureSource");
+ return IntSize(0, 0);
+ } else {
+ return mBufferDrawTarget->GetSize();
+ }
+}
+
+gfx::SurfaceFormat
+X11DataTextureSourceBasic::GetFormat() const
+{
+ if (!mBufferDrawTarget) {
+ NS_WARNING("Trying to query the format of an uninitialized TextureSource");
+ return gfx::SurfaceFormat::UNKNOWN;
+ } else {
+ return mBufferDrawTarget->GetFormat();
+ }
+}
+
+SourceSurface*
+X11DataTextureSourceBasic::GetSurface(DrawTarget* aTarget)
+{
+ RefPtr<gfx::SourceSurface> surface;
+ if (mBufferDrawTarget) {
+ surface = mBufferDrawTarget->Snapshot();
+ return surface.get();
+ } else {
+ return nullptr;
+ }
+}
+
+void
+X11DataTextureSourceBasic::DeallocateDeviceData()
+{
+ mBufferDrawTarget = nullptr;
+}
+
+already_AddRefed<DataTextureSource>
+X11BasicCompositor::CreateDataTextureSource(TextureFlags aFlags)
+{
+ RefPtr<DataTextureSource> result =
+ new X11DataTextureSourceBasic();
+ return result.forget();
+}
+
+void
+X11BasicCompositor::EndFrame()
+{
+ BasicCompositor::EndFrame();
+ XFlush(DefaultXDisplay());
+}
+
+} // namespace layers
+} // namespace mozilla