1 files changed, 65 insertions, 0 deletions
diff --git a/Userland/Services/ImageDecoder/ConnectionFromClient.cpp b/Userland/Services/ImageDecoder/ConnectionFromClient.cpp
new file mode 100644
index 0000000000..6911b3c0a7
--- /dev/null
+++ b/Userland/Services/ImageDecoder/ConnectionFromClient.cpp
@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <AK/Debug.h>
+#include <ImageDecoder/ConnectionFromClient.h>
+#include <ImageDecoder/ImageDecoderClientEndpoint.h>
+#include <LibGfx/Bitmap.h>
+#include <LibGfx/ImageDecoder.h>
+
+namespace ImageDecoder {
+
+ConnectionFromClient::ConnectionFromClient(NonnullOwnPtr<Core::Stream::LocalSocket> socket)
+    : IPC::ConnectionFromClient<ImageDecoderClientEndpoint, ImageDecoderServerEndpoint>(*this, move(socket), 1)
+{
+}
+
+ConnectionFromClient::~ConnectionFromClient()
+{
+}
+
+void ConnectionFromClient::die()
+{
+    Core::EventLoop::current().quit(0);
+}
+
+Messages::ImageDecoderServer::DecodeImageResponse ConnectionFromClient::decode_image(Core::AnonymousBuffer const& encoded_buffer)
+{
+    if (!encoded_buffer.is_valid()) {
+        dbgln_if(IMAGE_DECODER_DEBUG, "Encoded data is invalid");
+        return nullptr;
+    }
+
+    auto decoder = Gfx::ImageDecoder::try_create(ReadonlyBytes { encoded_buffer.data<u8>(), encoded_buffer.size() });
+
+    if (!decoder) {
+        dbgln_if(IMAGE_DECODER_DEBUG, "Could not find suitable image decoder plugin for data");
+        return { false, 0, Vector<Gfx::ShareableBitmap> {}, Vector<u32> {} };
+    }
+
+    if (!decoder->frame_count()) {
+        dbgln_if(IMAGE_DECODER_DEBUG, "Could not decode image from encoded data");
+        return { false, 0, Vector<Gfx::ShareableBitmap> {}, Vector<u32> {} };
+    }
+
+    Vector<Gfx::ShareableBitmap> bitmaps;
+    Vector<u32> durations;
+    for (size_t i = 0; i < decoder->frame_count(); ++i) {
+        auto frame_or_error = decoder->frame(i);
+        if (frame_or_error.is_error()) {
+            bitmaps.append(Gfx::ShareableBitmap {});
+            durations.append(0);
+        } else {
+            auto frame = frame_or_error.release_value();
+            bitmaps.append(frame.image->to_shareable_bitmap());
+            durations.append(frame.duration);
+        }
+    }
+
+    return { decoder->is_animated(), static_cast<u32>(decoder->loop_count()), bitmaps, durations };
+}
+
+}