Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

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

1 files changed, 478 insertions, 0 deletions

diff --git a/gfx/webrender_bindings/Moz2DImageRenderer.cpp b/gfx/webrender_bindings/Moz2DImageRenderer.cpp
new file mode 100644
index 0000000000..500e7bf1c3
--- /dev/null
+++ b/gfx/webrender_bindings/Moz2DImageRenderer.cpp
@@ -0,0 +1,478 @@
+/* -*- 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 "mozilla/StaticPrefs_gfx.h"
+#include "gfxUtils.h"
+#include "mozilla/Mutex.h"
+#include "mozilla/Range.h"
+#include "mozilla/gfx/2D.h"
+#include "mozilla/gfx/RectAbsolute.h"
+#include "mozilla/gfx/Logging.h"
+#include "mozilla/gfx/RecordedEvent.h"
+#include "mozilla/layers/WebRenderDrawEventRecorder.h"
+#include "WebRenderTypes.h"
+#include "webrender_ffi.h"
+#include "GeckoProfiler.h"
+
+#include <unordered_map>
+
+#ifdef XP_DARWIN
+#  include "mozilla/gfx/UnscaledFontMac.h"
+#elif defined(XP_WIN)
+#  include "mozilla/gfx/UnscaledFontDWrite.h"
+#else
+#  include "mozilla/gfx/UnscaledFontFreeType.h"
+#endif
+
+namespace std {
+template <>
+struct hash<mozilla::wr::FontKey> {
+  size_t operator()(const mozilla::wr::FontKey& key) const {
+    return hash<size_t>()(mozilla::wr::AsUint64(key));
+  }
+};
+
+template <>
+struct hash<mozilla::wr::FontInstanceKey> {
+  size_t operator()(const mozilla::wr::FontInstanceKey& key) const {
+    return hash<size_t>()(mozilla::wr::AsUint64(key));
+  }
+};
+};  // namespace std
+
+namespace mozilla {
+
+using namespace gfx;
+
+namespace wr {
+
+struct FontTemplate {
+  const uint8_t* mData;
+  size_t mSize;
+  uint32_t mIndex;
+  const VecU8* mVec;
+  RefPtr<UnscaledFont> mUnscaledFont;
+
+  FontTemplate() : mData(nullptr), mSize(0), mIndex(0), mVec(nullptr) {}
+
+  ~FontTemplate() {
+    if (mVec) {
+      wr_dec_ref_arc(mVec);
+    }
+  }
+};
+
+struct FontInstanceData {
+  WrFontKey mFontKey;
+  float mSize;
+  Maybe<FontInstanceOptions> mOptions;
+  Maybe<FontInstancePlatformOptions> mPlatformOptions;
+  UniquePtr<gfx::FontVariation[]> mVariations;
+  size_t mNumVariations;
+  RefPtr<ScaledFont> mScaledFont;
+
+  FontInstanceData() : mSize(0), mNumVariations(0) {}
+};
+
+StaticMutex sFontDataTableLock;
+std::unordered_map<WrFontKey, FontTemplate> sFontDataTable;
+std::unordered_map<WrFontInstanceKey, FontInstanceData> sBlobFontTable;
+
+// Fixed-size ring buffer logging font deletion events to aid debugging.
+static struct FontDeleteLog {
+  static const size_t MAX_ENTRIES = 256;
+
+  uint64_t mEntries[MAX_ENTRIES] = {0};
+  size_t mNextEntry = 0;
+
+  void AddEntry(uint64_t aEntry) {
+    mEntries[mNextEntry] = aEntry;
+    mNextEntry = (mNextEntry + 1) % MAX_ENTRIES;
+  }
+
+  void Add(WrFontKey aKey) { AddEntry(AsUint64(aKey)); }
+
+  // Store namespace clears as font id 0, since this will never be allocated.
+  void Add(WrIdNamespace aNamespace) {
+    AddEntry(AsUint64(WrFontKey{aNamespace, 0}));
+  }
+
+  void AddAll() { AddEntry(~0); }
+
+  // Find a matching entry in the log, searching backwards starting at the
+  // newest entry and finishing with the oldest entry. Returns a brief
+  // description of why the font was deleted, if known.
+  const char* Find(WrFontKey aKey) {
+    uint64_t keyEntry = AsUint64(aKey);
+    uint64_t namespaceEntry = AsUint64(WrFontKey{aKey.mNamespace, 0});
+    size_t offset = mNextEntry;
+    do {
+      offset = (offset + MAX_ENTRIES - 1) % MAX_ENTRIES;
+      if (mEntries[offset] == keyEntry) {
+        return "deleted font";
+      } else if (mEntries[offset] == namespaceEntry) {
+        return "cleared namespace";
+      } else if (mEntries[offset] == (uint64_t)~0) {
+        return "cleared all";
+      }
+    } while (offset != mNextEntry);
+    return "unknown font";
+  }
+} sFontDeleteLog;
+
+void ClearAllBlobImageResources() {
+  StaticMutexAutoLock lock(sFontDataTableLock);
+  sFontDeleteLog.AddAll();
+  sBlobFontTable.clear();
+  sFontDataTable.clear();
+}
+
+extern "C" {
+void ClearBlobImageResources(WrIdNamespace aNamespace) {
+  StaticMutexAutoLock lock(sFontDataTableLock);
+  sFontDeleteLog.Add(aNamespace);
+  for (auto i = sBlobFontTable.begin(); i != sBlobFontTable.end();) {
+    if (i->first.mNamespace == aNamespace) {
+      i = sBlobFontTable.erase(i);
+    } else {
+      i++;
+    }
+  }
+  for (auto i = sFontDataTable.begin(); i != sFontDataTable.end();) {
+    if (i->first.mNamespace == aNamespace) {
+      i = sFontDataTable.erase(i);
+    } else {
+      i++;
+    }
+  }
+}
+
+bool HasFontData(WrFontKey aKey) {
+  StaticMutexAutoLock lock(sFontDataTableLock);
+  return sFontDataTable.find(aKey) != sFontDataTable.end();
+}
+
+void AddFontData(WrFontKey aKey, const uint8_t* aData, size_t aSize,
+                 uint32_t aIndex, const ArcVecU8* aVec) {
+  StaticMutexAutoLock lock(sFontDataTableLock);
+  auto i = sFontDataTable.find(aKey);
+  if (i == sFontDataTable.end()) {
+    FontTemplate& font = sFontDataTable[aKey];
+    font.mData = aData;
+    font.mSize = aSize;
+    font.mIndex = aIndex;
+    font.mVec = wr_add_ref_arc(aVec);
+  }
+}
+
+void AddNativeFontHandle(WrFontKey aKey, void* aHandle, uint32_t aIndex) {
+  StaticMutexAutoLock lock(sFontDataTableLock);
+  auto i = sFontDataTable.find(aKey);
+  if (i == sFontDataTable.end()) {
+    FontTemplate& font = sFontDataTable[aKey];
+#ifdef XP_DARWIN
+    font.mUnscaledFont =
+        new UnscaledFontMac(reinterpret_cast<CGFontRef>(aHandle), false);
+#elif defined(XP_WIN)
+    font.mUnscaledFont = new UnscaledFontDWrite(
+        reinterpret_cast<IDWriteFontFace*>(aHandle), nullptr);
+#elif defined(ANDROID)
+    font.mUnscaledFont = new UnscaledFontFreeType(
+        reinterpret_cast<const char*>(aHandle), aIndex);
+#else
+    font.mUnscaledFont = new UnscaledFontFontconfig(
+        reinterpret_cast<const char*>(aHandle), aIndex);
+#endif
+  }
+}
+
+void DeleteFontData(WrFontKey aKey) {
+  StaticMutexAutoLock lock(sFontDataTableLock);
+  sFontDeleteLog.Add(aKey);
+  auto i = sFontDataTable.find(aKey);
+  if (i != sFontDataTable.end()) {
+    sFontDataTable.erase(i);
+  }
+}
+
+void AddBlobFont(WrFontInstanceKey aInstanceKey, WrFontKey aFontKey,
+                 float aSize, const FontInstanceOptions* aOptions,
+                 const FontInstancePlatformOptions* aPlatformOptions,
+                 const FontVariation* aVariations, size_t aNumVariations) {
+  StaticMutexAutoLock lock(sFontDataTableLock);
+  auto i = sBlobFontTable.find(aInstanceKey);
+  if (i == sBlobFontTable.end()) {
+    FontInstanceData& font = sBlobFontTable[aInstanceKey];
+    font.mFontKey = aFontKey;
+    font.mSize = aSize;
+    if (aOptions) {
+      font.mOptions = Some(*aOptions);
+    }
+    if (aPlatformOptions) {
+      font.mPlatformOptions = Some(*aPlatformOptions);
+    }
+    if (aNumVariations) {
+      font.mNumVariations = aNumVariations;
+      font.mVariations.reset(new gfx::FontVariation[aNumVariations]);
+      PodCopy(font.mVariations.get(),
+              reinterpret_cast<const gfx::FontVariation*>(aVariations),
+              aNumVariations);
+    }
+  }
+}
+
+void DeleteBlobFont(WrFontInstanceKey aKey) {
+  StaticMutexAutoLock lock(sFontDataTableLock);
+  auto i = sBlobFontTable.find(aKey);
+  if (i != sBlobFontTable.end()) {
+    sBlobFontTable.erase(i);
+  }
+}
+
+}  // extern
+
+static RefPtr<UnscaledFont> GetUnscaledFont(Translator* aTranslator,
+                                            WrFontKey aKey) {
+  auto i = sFontDataTable.find(aKey);
+  if (i == sFontDataTable.end()) {
+    gfxDevCrash(LogReason::UnscaledFontNotFound)
+        << "Failed to get UnscaledFont entry for FontKey " << aKey.mHandle
+        << " because " << sFontDeleteLog.Find(aKey);
+    return nullptr;
+  }
+  FontTemplate& data = i->second;
+  if (data.mUnscaledFont) {
+    return data.mUnscaledFont;
+  }
+  MOZ_ASSERT(data.mData);
+  FontType type =
+#ifdef XP_DARWIN
+      FontType::MAC;
+#elif defined(XP_WIN)
+      FontType::DWRITE;
+#elif defined(ANDROID)
+      FontType::FREETYPE;
+#else
+      FontType::FONTCONFIG;
+#endif
+  // makes a copy of the data
+  RefPtr<NativeFontResource> fontResource = Factory::CreateNativeFontResource(
+      (uint8_t*)data.mData, data.mSize, type, aTranslator->GetFontContext());
+  RefPtr<UnscaledFont> unscaledFont;
+  if (!fontResource) {
+    gfxDevCrash(LogReason::NativeFontResourceNotFound)
+        << "Failed to create NativeFontResource for FontKey " << aKey.mHandle;
+  } else {
+    // Instance data is only needed for GDI fonts which webrender does not
+    // support.
+    unscaledFont = fontResource->CreateUnscaledFont(data.mIndex, nullptr, 0);
+    if (!unscaledFont) {
+      gfxDevCrash(LogReason::UnscaledFontNotFound)
+          << "Failed to create UnscaledFont for FontKey " << aKey.mHandle;
+    }
+  }
+  data.mUnscaledFont = unscaledFont;
+  return unscaledFont;
+}
+
+static RefPtr<ScaledFont> GetScaledFont(Translator* aTranslator,
+                                        WrFontInstanceKey aKey) {
+  StaticMutexAutoLock lock(sFontDataTableLock);
+  auto i = sBlobFontTable.find(aKey);
+  if (i == sBlobFontTable.end()) {
+    gfxDevCrash(LogReason::ScaledFontNotFound)
+        << "Failed to get ScaledFont entry for FontInstanceKey "
+        << aKey.mHandle;
+    return nullptr;
+  }
+  FontInstanceData& data = i->second;
+  if (data.mScaledFont) {
+    return data.mScaledFont;
+  }
+  RefPtr<UnscaledFont> unscaled = GetUnscaledFont(aTranslator, data.mFontKey);
+  if (!unscaled) {
+    return nullptr;
+  }
+  RefPtr<ScaledFont> scaled = unscaled->CreateScaledFontFromWRFont(
+      data.mSize, data.mOptions.ptrOr(nullptr),
+      data.mPlatformOptions.ptrOr(nullptr), data.mVariations.get(),
+      data.mNumVariations);
+  if (!scaled) {
+    gfxDevCrash(LogReason::ScaledFontNotFound)
+        << "Failed to create ScaledFont for FontKey " << aKey.mHandle;
+  }
+  data.mScaledFont = scaled;
+  return data.mScaledFont;
+}
+
+template <typename T>
+T ConvertFromBytes(const uint8_t* bytes) {
+  T t;
+  memcpy(&t, bytes, sizeof(T));
+  return t;
+}
+
+struct Reader {
+  const uint8_t* buf;
+  size_t len;
+  size_t pos;
+
+  Reader(const uint8_t* buf, size_t len) : buf(buf), len(len), pos(0) {}
+
+  template <typename T>
+  T Read() {
+    MOZ_RELEASE_ASSERT(pos + sizeof(T) <= len);
+    T ret = ConvertFromBytes<T>(buf + pos);
+    pos += sizeof(T);
+    return ret;
+  }
+
+  size_t ReadSize() { return Read<size_t>(); }
+  int ReadInt() { return Read<int>(); }
+
+  IntRectAbsolute ReadBounds() { return Read<IntRectAbsolute>(); }
+
+  layers::BlobFont ReadBlobFont() { return Read<layers::BlobFont>(); }
+};
+
+static bool Moz2DRenderCallback(const Range<const uint8_t> aBlob,
+                                gfx::SurfaceFormat aFormat,
+                                const mozilla::wr::DeviceIntRect* aVisibleRect,
+                                const mozilla::wr::LayoutIntRect* aRenderRect,
+                                const uint16_t aTileSize,
+                                const mozilla::wr::TileOffset* aTileOffset,
+                                const mozilla::wr::LayoutIntRect* aDirtyRect,
+                                Range<uint8_t> aOutput) {
+  IntSize size(aRenderRect->width(), aRenderRect->height());
+  AUTO_PROFILER_TRACING_MARKER("WebRender", "RasterizeSingleBlob", GRAPHICS);
+  MOZ_RELEASE_ASSERT(size.width > 0 && size.height > 0);
+  if (size.width <= 0 || size.height <= 0) {
+    return false;
+  }
+
+  auto stride = size.width * gfx::BytesPerPixel(aFormat);
+
+  if (aOutput.length() < static_cast<size_t>(size.height * stride)) {
+    return false;
+  }
+
+  // In bindings.rs we allocate a buffer filled with opaque white.
+  bool uninitialized = false;
+
+  RefPtr<gfx::DrawTarget> dt = gfx::Factory::CreateDrawTargetForData(
+      gfx::BackendType::SKIA, aOutput.begin().get(), size, stride, aFormat,
+      uninitialized);
+
+  if (!dt) {
+    return false;
+  }
+
+  // We try hard to not have empty blobs but we can end up with
+  // them because of CompositorHitTestInfo and merging.
+  size_t footerSize = sizeof(size_t);
+  MOZ_RELEASE_ASSERT(aBlob.length() >= footerSize);
+  size_t indexOffset = ConvertFromBytes<size_t>(aBlob.end().get() - footerSize);
+
+  // aRenderRect is the part of the blob that we are currently rendering
+  // (for example a tile) in the same coordinate space as aVisibleRect.
+  IntPoint origin = gfx::IntPoint(aRenderRect->min.x, aRenderRect->min.y);
+
+  MOZ_RELEASE_ASSERT(indexOffset <= aBlob.length() - footerSize);
+  Reader reader(aBlob.begin().get() + indexOffset,
+                aBlob.length() - footerSize - indexOffset);
+
+  dt = gfx::Factory::CreateOffsetDrawTarget(dt, origin);
+
+  auto bounds = gfx::IntRect(origin, size);
+
+  if (aDirtyRect) {
+    gfx::Rect dirty(aDirtyRect->min.x, aDirtyRect->min.y, aDirtyRect->width(),
+                    aDirtyRect->height());
+    dt->PushClipRect(dirty);
+    bounds =
+        bounds.Intersect(IntRect(aDirtyRect->min.x, aDirtyRect->min.y,
+                                 aDirtyRect->width(), aDirtyRect->height()));
+  }
+
+  bool ret = true;
+  size_t offset = 0;
+  auto absBounds = IntRectAbsolute::FromRect(bounds);
+  while (reader.pos < reader.len) {
+    size_t end = reader.ReadSize();
+    size_t extra_end = reader.ReadSize();
+    MOZ_RELEASE_ASSERT(extra_end >= end);
+    MOZ_RELEASE_ASSERT(extra_end < aBlob.length());
+
+    auto combinedBounds = absBounds.Intersect(reader.ReadBounds());
+    if (combinedBounds.IsEmpty()) {
+      offset = extra_end;
+      continue;
+    }
+
+    layers::WebRenderTranslator translator(dt);
+    Reader fontReader(aBlob.begin().get() + end, extra_end - end);
+    size_t count = fontReader.ReadSize();
+    for (size_t i = 0; i < count; i++) {
+      layers::BlobFont blobFont = fontReader.ReadBlobFont();
+      RefPtr<ScaledFont> scaledFont =
+          GetScaledFont(&translator, blobFont.mFontInstanceKey);
+      translator.AddScaledFont(blobFont.mScaledFontPtr, scaledFont);
+    }
+
+    Range<const uint8_t> blob(aBlob.begin() + offset, aBlob.begin() + end);
+    ret =
+        translator.TranslateRecording((char*)blob.begin().get(), blob.length());
+    if (!ret) {
+      gfxCriticalNote << "Replay failure: " << translator.GetError();
+      MOZ_RELEASE_ASSERT(false);
+    }
+    offset = extra_end;
+  }
+
+  if (StaticPrefs::gfx_webrender_debug_blob_paint_flashing()) {
+    dt->SetTransform(gfx::Matrix());
+    float r = float(rand()) / float(RAND_MAX);
+    float g = float(rand()) / float(RAND_MAX);
+    float b = float(rand()) / float(RAND_MAX);
+    dt->FillRect(gfx::Rect(origin.x, origin.y, size.width, size.height),
+                 gfx::ColorPattern(gfx::DeviceColor(r, g, b, 0.5)));
+  }
+
+  if (aDirtyRect) {
+    dt->PopClip();
+  }
+
+#if 0
+  static int i = 0;
+  char filename[40];
+  sprintf(filename, "out%d.png", i++);
+  gfxUtils::WriteAsPNG(dt, filename);
+#endif
+
+  return ret;
+}
+
+}  // namespace wr
+}  // namespace mozilla
+
+extern "C" {
+
+bool wr_moz2d_render_cb(const mozilla::wr::ByteSlice blob,
+                        mozilla::wr::ImageFormat aFormat,
+                        const mozilla::wr::LayoutIntRect* aRenderRect,
+                        const mozilla::wr::DeviceIntRect* aVisibleRect,
+                        const uint16_t aTileSize,
+                        const mozilla::wr::TileOffset* aTileOffset,
+                        const mozilla::wr::LayoutIntRect* aDirtyRect,
+                        mozilla::wr::MutByteSlice output) {
+  return mozilla::wr::Moz2DRenderCallback(
+      mozilla::wr::ByteSliceToRange(blob),
+      mozilla::wr::ImageFormatToSurfaceFormat(aFormat), aVisibleRect,
+      aRenderRect, aTileSize, aTileOffset, aDirtyRect,
+      mozilla::wr::MutByteSliceToRange(output));
+}
+
+}  // extern