Attachment 346623 Details for Bug 188344 – Patch

[patch] Patch

bug-188344-20180806132320.patch (text/plain), 9.01 KB, created by Zan Dobersek on 2018-08-06 04:23:22 PDT

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Creator: Zan Dobersek

Created: 2018-08-06 04:23:22 PDT

Size: 9.01 KB

patch

obsolete

>Subversion Revision: 234595
>diff --git a/Source/WebCore/ChangeLog b/Source/WebCore/ChangeLog
>index 1bf4f8bcaf991713011fab34eeb35152d542ddfa..ce0d9e86a67554b7ceeeef05ecc6a0f157649a02 100644
>--- a/Source/WebCore/ChangeLog
>+++ b/Source/WebCore/ChangeLog
>@@ -1,3 +1,43 @@
>+2018-08-06  Zan Dobersek  <zdobersek@igalia.com>
>+
>+        [Nicosia] Add the TextureMapper-specific ContentLayer::Impl derivative
>+        https://bugs.webkit.org/show_bug.cgi?id=188344
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Add Nicosia::ContentLayerTextureMapperImpl class, providing the
>+        TextureMapper-specific implementation that derives from the
>+        ContentLayer::Impl class and which can be used by the
>+        Nicosia::ContentLayer instances.
>+
>+        Internally a TextureMapperPlatformLayerProxy is created, and is
>+        accessible to others through a getter. This way the content producers
>+        can push new buffers into this proxy object, and the scene compositor
>+        can take these buffers for display purposes.
>+
>+        Nicosia::ContentLayerTextureMapperImpl::swapBuffersIfNeeded() will be
>+        called during layer flushes, and the call will cause the content layer
>+        clients to take their texture, wrap it into a buffer, and push it into
>+        the TextureMapperPlatformLayerProxy object. At the moment this operation
>+        is required by the ImageBuffer and GraphicsContext3D producers.
>+
>+        The Client object is managed under its own lock. While the producers
>+        will only live on the main thread, the thread-safe check in the
>+        destructor is necessary in case the ContentLayerTextureMapperImpl object
>+        ends up being destroyed on some other thread.
>+
>+        The patch only adds the class implementation. It will be integrated into
>+        the layer tree later, once all the other pieces of the puzzle land.
>+
>+        * platform/TextureMapper.cmake:
>+        * platform/graphics/nicosia/texmap/NicosiaContentLayerTextureMapperImpl.cpp: Added.
>+        (Nicosia::ContentLayerTextureMapperImpl::createFactory):
>+        (Nicosia::ContentLayerTextureMapperImpl::ContentLayerTextureMapperImpl):
>+        (Nicosia::ContentLayerTextureMapperImpl::~ContentLayerTextureMapperImpl):
>+        (Nicosia::ContentLayerTextureMapperImpl::invalidateClient):
>+        (Nicosia::ContentLayerTextureMapperImpl::swapBuffersIfNeeded):
>+        * platform/graphics/nicosia/texmap/NicosiaContentLayerTextureMapperImpl.h: Added.
>+
> 2018-08-06  Zan Dobersek  <zdobersek@igalia.com>
> 
>         Unreviewed follow-up to r234594.
>diff --git a/Source/WebCore/platform/TextureMapper.cmake b/Source/WebCore/platform/TextureMapper.cmake
>index dbec3883ecf1aa50bffd9d5590b35278e12c2c0e..0e15657c17ab74b4883d3d0209823990bf195788 100644
>--- a/Source/WebCore/platform/TextureMapper.cmake
>+++ b/Source/WebCore/platform/TextureMapper.cmake
>@@ -56,6 +56,8 @@ if (USE_COORDINATED_GRAPHICS)
> 
>         platform/graphics/nicosia/cairo/NicosiaCairoOperationRecorder.cpp
>         platform/graphics/nicosia/cairo/NicosiaPaintingContextCairo.cpp
>+
>+        platform/graphics/nicosia/texmap/NicosiaContentLayerTextureMapperImpl.cpp
>     )
> else ()
>     list(APPEND WebCore_SOURCES
>diff --git a/Source/WebCore/platform/graphics/nicosia/texmap/NicosiaContentLayerTextureMapperImpl.cpp b/Source/WebCore/platform/graphics/nicosia/texmap/NicosiaContentLayerTextureMapperImpl.cpp
>new file mode 100644
>index 0000000000000000000000000000000000000000..63943261928b9cadbe97c247527baec4396be707
>--- /dev/null
>+++ b/Source/WebCore/platform/graphics/nicosia/texmap/NicosiaContentLayerTextureMapperImpl.cpp
>@@ -0,0 +1,77 @@
>+/*
>+ * Copyright (C) 2018 Metrological Group B.V.
>+ * Copyright (C) 2018 Igalia S.L.
>+ *
>+ * Redistribution and use in source and binary forms, with or without
>+ * modification, are permitted provided that the following conditions
>+ * are met:
>+ *
>+ * 1. Redistributions of source code must retain the above copyright
>+ *    notice, this list of conditions and the following disclaimer.
>+ * 2. Redistributions in binary form must reproduce the above
>+ *    copyright notice, this list of conditions and the following
>+ *    disclaimer in the documentation and/or other materials provided
>+ *    with the distribution.
>+ *
>+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
>+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
>+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
>+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
>+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
>+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
>+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
>+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
>+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
>+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
>+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
>+ */
>+
>+#include "config.h"
>+#include "NicosiaContentLayerTextureMapperImpl.h"
>+
>+#if USE(TEXTURE_MAPPER)
>+
>+#include "TextureMapperPlatformLayerProxy.h"
>+
>+namespace Nicosia {
>+
>+auto ContentLayerTextureMapperImpl::createFactory(Client& client) -> Factory
>+{
>+    return Factory(
>+        [&client](ContentLayer&) {
>+            return std::make_unique<ContentLayerTextureMapperImpl>(client);
>+        });
>+}
>+
>+ContentLayerTextureMapperImpl::ContentLayerTextureMapperImpl(Client& client)
>+    : m_proxy(adoptRef(*new WebCore::TextureMapperPlatformLayerProxy))
>+    , m_client { { }, &client }
>+{
>+}
>+
>+ContentLayerTextureMapperImpl::~ContentLayerTextureMapperImpl()
>+{
>+#if !ASSERT_DISABLED
>+    LockHolder locker(m_client.lock);
>+    ASSERT(!m_client.object);
>+#endif
>+}
>+
>+void ContentLayerTextureMapperImpl::invalidateClient()
>+{
>+    LockHolder locker(m_client.lock);
>+    m_client.object = nullptr;
>+}
>+
>+void ContentLayerTextureMapperImpl::swapBuffersIfNeeded()
>+{
>+    LockHolder locker(m_client.lock);
>+    if (m_client.object)
>+        m_client.object->swapBuffersIfNeeded();
>+}
>+
>+ContentLayerTextureMapperImpl::Client::~Client() = default;
>+
>+} // namespace Nicosia
>+
>+#endif // USE(TEXTURE_MAPPER)
>diff --git a/Source/WebCore/platform/graphics/nicosia/texmap/NicosiaContentLayerTextureMapperImpl.h b/Source/WebCore/platform/graphics/nicosia/texmap/NicosiaContentLayerTextureMapperImpl.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..8103573a3aa171b20b9aa33a66719d5513ec0e07
>--- /dev/null
>+++ b/Source/WebCore/platform/graphics/nicosia/texmap/NicosiaContentLayerTextureMapperImpl.h
>@@ -0,0 +1,74 @@
>+/*
>+ * Copyright (C) 2018 Metrological Group B.V.
>+ * Copyright (C) 2018 Igalia S.L.
>+ *
>+ * Redistribution and use in source and binary forms, with or without
>+ * modification, are permitted provided that the following conditions
>+ * are met:
>+ *
>+ * 1. Redistributions of source code must retain the above copyright
>+ *    notice, this list of conditions and the following disclaimer.
>+ * 2. Redistributions in binary form must reproduce the above
>+ *    copyright notice, this list of conditions and the following
>+ *    disclaimer in the documentation and/or other materials provided
>+ *    with the distribution.
>+ *
>+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
>+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
>+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
>+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
>+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
>+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
>+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
>+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
>+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
>+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
>+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
>+ */
>+
>+#pragma once
>+
>+#if USE(TEXTURE_MAPPER)
>+
>+#include "NicosiaPlatformLayer.h"
>+#include <wtf/Lock.h>
>+#include <wtf/Ref.h>
>+
>+namespace WebCore {
>+class TextureMapperPlatformLayerProxy;
>+}
>+
>+namespace Nicosia {
>+
>+class ContentLayerTextureMapperImpl final : public ContentLayer::Impl {
>+public:
>+    class Client {
>+    public:
>+        virtual ~Client();
>+        virtual void swapBuffersIfNeeded() = 0;
>+    };
>+
>+    static Factory createFactory(Client&);
>+
>+    ContentLayerTextureMapperImpl(Client&);
>+    virtual ~ContentLayerTextureMapperImpl();
>+    bool isTextureMapperImpl() const override { return true; }
>+
>+    void invalidateClient();
>+
>+    const Ref<WebCore::TextureMapperPlatformLayerProxy>& proxy() const { return m_proxy; }
>+    void swapBuffersIfNeeded();
>+
>+private:
>+    Ref<WebCore::TextureMapperPlatformLayerProxy> m_proxy;
>+    struct {
>+        Lock lock;
>+        Client* object { nullptr };
>+    } m_client;
>+};
>+
>+} // namespace Nicosia
>+
>+SPECIALIZE_TYPE_TRAITS_NICOSIA_CONTENTLAYER_IMPL(ContentLayerTextureMapperImpl, isTextureMapperImpl());
>+
>+#endif // USE(TEXTURE_MAPPER)

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Attachments on bug 188344: 346623 | 346698