[Skia] Add support for favicons on GTK

https://bugs.webkit.org/show_bug.cgi?id=270811

Reviewed by Carlos Garcia Campos.

* Source/WebCore/PlatformGTK.cmake:
* Source/WebCore/SourcesGTK.txt:
* Source/WebCore/platform/graphics/gtk/GdkSkiaUtilities.cpp: Added.
(WebCore::skiaImageToGdkTexture):
* Source/WebCore/platform/graphics/gtk/GdkSkiaUtilities.h: Added.
* Source/WebKit/UIProcess/API/glib/WebKitFaviconDatabase.cpp:
(webkitFaviconDatabaseGetFaviconInternal):
(webkit_favicon_database_get_favicon_finish):

Canonical link: https://commits.webkit.org/275982@main

Source/WebCore/PlatformGTK.cmake

@@ -57,6 +57,7 @@ list(APPEND WebCore_PRIVATE_FRAMEWORK_HEADERS
     platform/graphics/gbm/PlatformDisplayGBM.h
 
     platform/graphics/gtk/GdkCairoUtilities.h
+    platform/graphics/gtk/GdkSkiaUtilities.h
 
     platform/graphics/x11/PlatformDisplayX11.h
     platform/graphics/x11/XErrorTrapper.h

Source/WebCore/SourcesGTK.txt

@@ -70,6 +70,7 @@ platform/graphics/gbm/PlatformDisplayGBM.cpp @no-unify
 
 platform/graphics/gtk/ColorGtk.cpp
 platform/graphics/gtk/GdkCairoUtilities.cpp
+platform/graphics/gtk/GdkSkiaUtilities.cpp
 platform/graphics/gtk/ImageAdapterGtk.cpp
 platform/graphics/gtk/SystemFontDatabaseGTK.cpp
 

Source/WebCore/platform/graphics/gtk/GdkSkiaUtilities.cpp

@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2024 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 APPLE INC. ``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 APPLE INC. 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 "GdkSkiaUtilities.h"
+
+#if USE(SKIA)
+
+#if !USE(GTK4)
+#include <graphics/cairo/RefPtrCairo.h>
+#endif
+
+IGNORE_CLANG_WARNINGS_BEGIN("cast-align")
+#include <skia/core/SkPixmap.h>
+IGNORE_CLANG_WARNINGS_END
+
+namespace WebCore {
+
+#if USE(GTK4)
+GRefPtr<GdkTexture> skiaImageToGdkTexture(SkImage& image)
+{
+    SkPixmap pixmap;
+    if (!image.peekPixels(&pixmap))
+        return { };
+
+    GRefPtr<GBytes> bytes = adoptGRef(g_bytes_new_with_free_func(pixmap.addr(), pixmap.computeByteSize(), [](gpointer data) {
+        static_cast<SkImage*>(data)->unref();
+    }, SkRef(&image)));
+
+    return adoptGRef(gdk_memory_texture_new(pixmap.width(), pixmap.height(), GDK_MEMORY_DEFAULT, bytes.get(), pixmap.rowBytes()));
+}
+
+#else
+
+RefPtr<cairo_surface_t> skiaImageToCairoSurface(SkImage& image)
+{
+    SkPixmap pixmap;
+    if (!image.peekPixels(&pixmap))
+        return { };
+
+    RefPtr<cairo_surface_t> surface = adoptRef(cairo_image_surface_create_for_data(pixmap.writable_addr8(0, 0), CAIRO_FORMAT_ARGB32, pixmap.width(), pixmap.height(), pixmap.rowBytes()));
+    if (cairo_surface_status(surface.get()) != CAIRO_STATUS_SUCCESS)
+        return { };
+
+    static cairo_user_data_key_t surfaceDataKey;
+    cairo_surface_set_user_data(surface.get(), &surfaceDataKey, SkRef(&image), [](void* data) {
+        static_cast<SkImage*>(data)->unref();
+    });
+
+    return surface;
+}
+#endif
+
+} // namespace WebCore
+
+#endif // #if USE(SKIA)

Source/WebCore/platform/graphics/gtk/GdkSkiaUtilities.h

@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2024 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 APPLE INC. ``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 APPLE INC. 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(SKIA)
+
+#include <skia/core/SkImage.h>
+#include <wtf/glib/GRefPtr.h>
+
+#if USE(GTK4)
+#include <gdk/gdk.h>
+#else
+#include <cairo.h>
+#endif
+
+namespace WebCore {
+
+#if USE(GTK4)
+GRefPtr<GdkTexture> skiaImageToGdkTexture(SkImage&);
+#else
+RefPtr<cairo_surface_t> skiaImageToCairoSurface(SkImage&);
+#endif
+
+}
+
+#endif // USE(SKIA)

Source/WebKit/UIProcess/API/glib/WebKitFaviconDatabase.cpp

@@ -36,6 +36,7 @@
 
 #if PLATFORM(GTK)
 #include <WebCore/GdkCairoUtilities.h>
+#include <WebCore/GdkSkiaUtilities.h>
 #include <WebCore/RefPtrCairo.h>
 #endif
 
@@ -187,21 +188,22 @@ void webkitFaviconDatabaseGetFaviconInternal(WebKitFaviconDatabase* database, co
     }
 
     GRefPtr<GTask> task = adoptGRef(g_task_new(database, cancellable, callback, userData));
-#if USE(CAIRO)
     WebKitFaviconDatabasePrivate* priv = database->priv;
     priv->iconDatabase->loadIconForPageURL(String::fromUTF8(pageURI), isEphemeral ? IconDatabase::AllowDatabaseWrite::No : IconDatabase::AllowDatabaseWrite::Yes,
-        [task = WTFMove(task), pageURI = CString(pageURI)](RefPtr<cairo_surface_t>&& icon) {
+        [task = WTFMove(task), pageURI = CString(pageURI)](PlatformImagePtr&& icon) {
             if (!icon) {
                 g_task_return_new_error(task.get(), WEBKIT_FAVICON_DATABASE_ERROR, WEBKIT_FAVICON_DATABASE_ERROR_FAVICON_UNKNOWN,
                     _("Unknown favicon for page %s"), pageURI.data());
                 return;
             }
+#if USE(CAIRO)
             g_task_return_pointer(task.get(), icon.leakRef(), reinterpret_cast<GDestroyNotify>(cairo_surface_destroy));
-        });
 #elif USE(SKIA)
-    notImplemented();
-    g_task_return_new_error(task.get(), WEBKIT_FAVICON_DATABASE_ERROR, WEBKIT_FAVICON_DATABASE_ERROR_FAVICON_UNKNOWN, _("Unknown favicon for page %s"), pageURI);
+            g_task_return_pointer(task.get(), SkRef(icon.get()), [](gpointer data) {
+                static_cast<SkImage*>(data)->unref();
+            });
 #endif
+        });
 }
 
 /**
@@ -254,18 +256,25 @@ cairo_surface_t* webkit_favicon_database_get_favicon_finish(WebKitFaviconDatabas
 #if USE(CAIRO)
     auto image = adoptRef(static_cast<cairo_surface_t*>(g_task_propagate_pointer(G_TASK(result), error)));
     auto texture = image ? cairoSurfaceToGdkTexture(image.get()) : nullptr;
-    if (texture)
-        return texture.leakRef();
 #elif USE(SKIA)
-    notImplemented();
+    auto* image = static_cast<SkImage*>(g_task_propagate_pointer(G_TASK(result), error));
+    auto texture = image ? skiaImageToGdkTexture(*image) : nullptr;
 #endif
+
+    if (texture)
+        return texture.leakRef();
     // FIXME: Add a new WEBKIT_FAVICON_DATABASE_ERROR
     if (error && !*error)
         g_set_error_literal(error, WEBKIT_FAVICON_DATABASE_ERROR, WEBKIT_FAVICON_DATABASE_ERROR_FAVICON_UNKNOWN, _("Failed to create texture"));
     return nullptr;
+#else
+#if USE(SKIA)
+    auto* image = static_cast<SkImage*>(g_task_propagate_pointer(G_TASK(result), error));
+    return image ? skiaImageToCairoSurface(*image).leakRef() : nullptr;
 #else
     return static_cast<cairo_surface_t*>(g_task_propagate_pointer(G_TASK(result), error));
 #endif
+#endif
 }
 #endif