[ONEM-32126]: WPE 2.38 - Silent for few seconds after rewind was performed

Author: suresh-khurdiya-epam

Source/WebCore/html/HTMLMediaElement.cpp

@@ -3764,6 +3764,12 @@ void HTMLMediaElement::playInternal()
         return;
     }
 
+    ALWAYS_LOG(LOGIDENTIFIER, "suresh m_seekRequested:", m_seekRequested, "wasSeeking:" , wasSeeking);
+    if (m_seekRequested) {
+        ALWAYS_LOG(LOGIDENTIFIER, "suresh no need to change the playstate");
+        return;
+    }
+
     // 4.8.10.9. Playing the media resource
     if (!m_player || m_networkState == NETWORK_EMPTY)
         selectMediaResource();

Source/WebCore/platform/graphics/cairo/CairoUtilities.cpp

@@ -42,6 +42,7 @@
 #include <wtf/NeverDestroyed.h>
 #include <wtf/UniqueArray.h>
 #include <wtf/Vector.h>
+#include <wtf/Atomics.h>
 
 #if ENABLE(ACCELERATED_2D_CANVAS)
 #include <cairo-gl.h>
@@ -57,6 +58,9 @@ namespace {
 
 namespace WebCore {
 
+static cairo_user_data_key_t s_surfaceUniqueIDKey;
+static Atomic<uintptr_t> s_surfaceUniqueID = 1;
+
 #if USE(FREETYPE)
 RecursiveLock& cairoFontLock()
 {
@@ -403,6 +407,16 @@ void renderingStarted()
     }
 }
 
+void attachSurfaceUniqueID(cairo_surface_t* surface)
+{
+    cairo_surface_set_user_data(surface, &s_surfaceUniqueIDKey, reinterpret_cast<void*>(s_surfaceUniqueID.exchangeAdd(1)), nullptr);
+}
+
+uintptr_t getSurfaceUniqueID(cairo_surface_t* surface)
+{
+    return reinterpret_cast<uintptr_t>(cairo_surface_get_user_data(surface, &s_surfaceUniqueIDKey));
+}
+
 } // namespace WebCore
 
 #endif // USE(CAIRO)

Source/WebCore/platform/graphics/cairo/CairoUtilities.h

@@ -98,6 +98,8 @@ void flipImageSurfaceVertically(cairo_surface_t*);
 RefPtr<cairo_region_t> toCairoRegion(const Region&);
 
 cairo_matrix_t toCairoMatrix(const AffineTransform&);
+void attachSurfaceUniqueID(cairo_surface_t*);
+uintptr_t getSurfaceUniqueID(cairo_surface_t*);
 
 void resetRenderingStartedFlag();
 void setRenderingStartedFlag();

Source/WebCore/platform/graphics/texmap/coordinated/CoordinatedGraphicsLayer.cpp

@@ -25,7 +25,7 @@
 #include "CoordinatedGraphicsLayer.h"
 
 #if USE(COORDINATED_GRAPHICS)
-
+#include "CairoUtilities.h"
 #include "FloatQuad.h"
 #include "GraphicsContext.h"
 #include "GraphicsLayer.h"
@@ -903,7 +903,9 @@ void CoordinatedGraphicsLayer::flushCompositingStateForThisLayerOnly()
         ASSERT(m_compositedImage);
         auto& image = *m_compositedImage;
         uintptr_t imageID = reinterpret_cast<uintptr_t>(&image);
-        uintptr_t nativeImageID = reinterpret_cast<uintptr_t>(m_compositedNativeImage->platformImage().get());
+        //uintptr_t nativeImageID = reinterpret_cast<uintptr_t>(m_compositedNativeImage->platformImage().get());
+
+	uintptr_t nativeImageID = getSurfaceUniqueID(m_compositedNativeImage->platformImage().get());
 
         // Respawn the ImageBacking object if the underlying image changed.
         if (m_nicosia.imageBacking) {
@@ -923,7 +925,8 @@ void CoordinatedGraphicsLayer::flushCompositingStateForThisLayerOnly()
         auto& layerState = impl.layerState();
         layerState.imageID = imageID;
         layerState.update.isVisible = transformedVisibleRect().intersects(IntRect(contentsRect()));
-        if (layerState.update.isVisible && layerState.update.nativeImageID != nativeImageID) {
+        if (layerState.update.isVisible && (!nativeImageID || layerState.update.nativeImageID != nativeImageID)) {
+	//if (layerState.update.isVisible && layerState.update.nativeImageID != nativeImageID) {
             layerState.update.nativeImageID = nativeImageID;
             layerState.update.imageBackingStore = m_coordinator->imageBackingStore(nativeImageID,
                 [&] {

Source/WebCore/platform/image-decoders/cairo/ImageBackingStoreCairo.cpp

@@ -24,6 +24,7 @@
  */
 
 #include "config.h"
+#include "CairoUtilities.h"
 #include "ImageBackingStore.h"
 
 #include <cairo.h>
@@ -43,5 +44,5 @@ PlatformImagePtr ImageBackingStore::image() const
 
     return surface;
 }
-
+attachSurfaceUniqueID(surface.get());
 } // namespace WebCore