Milestone 5: deliver embedded RDP sessions and lifecycle hardening

third_party/FreeRDP/include/freerdp/client/video.h

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+/**
+ * FreeRDP: A Remote Desktop Protocol Implementation
+ * Video Optimized Remoting Virtual Channel Extension
+ *
+ * Copyright 2017 David Fort <contact@hardening-consulting.com>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef FREERDP_CHANNELS_CLIENT_VIDEO_H
+#define FREERDP_CHANNELS_CLIENT_VIDEO_H
+
+#include <freerdp/client/geometry.h>
+#include <freerdp/channels/video.h>
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+	typedef struct s_VideoClientContext VideoClientContext;
+	typedef struct s_VideoClientContextPriv VideoClientContextPriv;
+
+	/** @brief an implementation of surface used by the video channel */
+	typedef struct
+	{
+		UINT32 x, y, w, h;
+		UINT32 alignedWidth, alignedHeight;
+		BYTE* data;
+		DWORD format;
+		UINT32 scanline;
+	} VideoSurface;
+
+	typedef void (*pcVideoTimer)(VideoClientContext* video, UINT64 now);
+	typedef void (*pcVideoSetGeometry)(VideoClientContext* video, GeometryClientContext* geometry);
+	typedef VideoSurface* (*pcVideoCreateSurface)(VideoClientContext* video, UINT32 x, UINT32 y,
+	                                              UINT32 width, UINT32 height);
+	typedef BOOL (*pcVideoShowSurface)(VideoClientContext* video, const VideoSurface* surface,
+	                                   UINT32 destinationWidth, UINT32 destinationHeight);
+	typedef BOOL (*pcVideoDeleteSurface)(VideoClientContext* video, VideoSurface* surface);
+
+	/** @brief context for the video (MS-RDPEVOR) channel */
+	struct s_VideoClientContext
+	{
+		void* handle;
+		void* custom;
+		VideoClientContextPriv* priv;
+
+		pcVideoSetGeometry setGeometry;
+		pcVideoTimer timer;
+		WINPR_ATTR_NODISCARD pcVideoCreateSurface createSurface;
+		WINPR_ATTR_NODISCARD pcVideoShowSurface showSurface;
+		pcVideoDeleteSurface deleteSurface;
+	};
+
+	WINPR_ATTR_NODISCARD
+	FREERDP_API VideoSurface* VideoClient_CreateCommonContext(size_t size, UINT32 x, UINT32 y,
+	                                                          UINT32 w, UINT32 h);
+	FREERDP_API void VideoClient_DestroyCommonContext(VideoSurface* surface);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* FREERDP_CHANNELS_CLIENT_VIDEO_H */