1 files changed, 88 insertions, 0 deletions
diff --git a/Userland/Libraries/LibImageDecoderClient/Client.cpp b/Userland/Libraries/LibImageDecoderClient/Client.cpp
new file mode 100644
index 0000000000..cd5fa7243d
--- /dev/null
+++ b/Userland/Libraries/LibImageDecoderClient/Client.cpp
@@ -0,0 +1,88 @@
+/*
+ * Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
+ * All rights reserved.
+ *
+ * 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 <AK/SharedBuffer.h>
+#include <LibImageDecoderClient/Client.h>
+
+namespace ImageDecoderClient {
+
+Client::Client()
+    : IPC::ServerConnection<ImageDecoderClientEndpoint, ImageDecoderServerEndpoint>(*this, "/tmp/portal/image")
+{
+    handshake();
+}
+
+void Client::handshake()
+{
+    auto response = send_sync<Messages::ImageDecoderServer::Greet>(getpid());
+    set_my_client_id(response->client_id());
+    set_server_pid(response->server_pid());
+}
+
+void Client::handle(const Messages::ImageDecoderClient::Dummy&)
+{
+}
+
+RefPtr<Gfx::Bitmap> Client::decode_image(const ByteBuffer& encoded_data)
+{
+    if (encoded_data.is_empty())
+        return nullptr;
+
+    auto encoded_buffer = SharedBuffer::create_with_size(encoded_data.size());
+    if (!encoded_buffer) {
+        dbgln("Could not allocate encoded shbuf");
+        return nullptr;
+    }
+
+    memcpy(encoded_buffer->data<void>(), encoded_data.data(), encoded_data.size());
+
+    encoded_buffer->seal();
+    encoded_buffer->share_with(server_pid());
+
+    auto response = send_sync<Messages::ImageDecoderServer::DecodeImage>(encoded_buffer->shbuf_id(), encoded_data.size());
+    auto bitmap_format = (Gfx::BitmapFormat)response->bitmap_format();
+    if (bitmap_format == Gfx::BitmapFormat::Invalid) {
+#ifdef IMAGE_DECODER_CLIENT_DEBUG
+        dbgln("Response image was invalid");
+#endif
+        return nullptr;
+    }
+
+    if (response->size().is_empty()) {
+        dbgln("Response image was empty");
+        return nullptr;
+    }
+
+    auto decoded_buffer = SharedBuffer::create_from_shbuf_id(response->decoded_shbuf_id());
+    if (!decoded_buffer) {
+        dbg() << "Could not map decoded image shbuf_id=" << response->decoded_shbuf_id();
+        return nullptr;
+    }
+
+    return Gfx::Bitmap::create_with_shared_buffer(bitmap_format, decoded_buffer.release_nonnull(), response->size(), response->palette());
+}
+
+}