Milestone 5: deliver embedded RDP sessions and lifecycle hardening

third_party/FreeRDP/include/freerdp/codec/zgfx.h

@@ -0,0 +1,72 @@
+/**
+ * FreeRDP: A Remote Desktop Protocol Implementation
+ * ZGFX (RDP8) Bulk Data Compression
+ *
+ * Copyright 2014 Marc-Andre Moreau <marcandre.moreau@gmail.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_CODEC_ZGFX_H
+#define FREERDP_CODEC_ZGFX_H
+
+#include <freerdp/api.h>
+#include <freerdp/types.h>
+
+#include <freerdp/codec/bulk.h>
+
+#define ZGFX_SEGMENTED_SINGLE 0xE0
+#define ZGFX_SEGMENTED_MULTIPART 0xE1
+
+#define ZGFX_PACKET_COMPR_TYPE_RDP8 0x04
+
+#define ZGFX_SEGMENTED_MAXSIZE 65535
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+	typedef struct S_ZGFX_CONTEXT ZGFX_CONTEXT;
+
+	WINPR_ATTR_NODISCARD
+	FREERDP_API int zgfx_decompress(ZGFX_CONTEXT* WINPR_RESTRICT zgfx,
+	                                const BYTE* WINPR_RESTRICT pSrcData, UINT32 SrcSize,
+	                                BYTE** WINPR_RESTRICT ppDstData,
+	                                UINT32* WINPR_RESTRICT pDstSize, UINT32 flags);
+
+	WINPR_ATTR_NODISCARD
+	FREERDP_API int zgfx_compress(ZGFX_CONTEXT* WINPR_RESTRICT zgfx,
+	                              const BYTE* WINPR_RESTRICT pSrcData, UINT32 SrcSize,
+	                              BYTE** WINPR_RESTRICT ppDstData, UINT32* WINPR_RESTRICT pDstSize,
+	                              UINT32* WINPR_RESTRICT pFlags);
+
+	WINPR_ATTR_NODISCARD
+	FREERDP_API int zgfx_compress_to_stream(ZGFX_CONTEXT* WINPR_RESTRICT zgfx,
+	                                        wStream* WINPR_RESTRICT sDst,
+	                                        const BYTE* WINPR_RESTRICT pUncompressed,
+	                                        UINT32 uncompressedSize, UINT32* WINPR_RESTRICT pFlags);
+
+	FREERDP_API void zgfx_context_reset(ZGFX_CONTEXT* WINPR_RESTRICT zgfx, BOOL flush);
+
+	FREERDP_API void zgfx_context_free(ZGFX_CONTEXT* zgfx);
+
+	WINPR_ATTR_MALLOC(zgfx_context_free, 1)
+	WINPR_ATTR_NODISCARD
+	FREERDP_API ZGFX_CONTEXT* zgfx_context_new(BOOL Compressor);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* FREERDP_CODEC_ZGFX_H */