mirror of
https://github.com/FreeRDP/FreeRDP.git
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270 lines
8.1 KiB
C
270 lines
8.1 KiB
C
/**
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* FreeRDP: A Remote Desktop Protocol Implementation
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* Graphics Pipeline Extension
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*
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* Copyright 2013 Marc-Andre Moreau <marcandre.moreau@gmail.com>
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* Copyright 2015 Thincast Technologies GmbH
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* Copyright 2015 DI (FH) Martin Haimberger <martin.haimberger@thincast.com>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <freerdp/config.h>
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#include <winpr/crt.h>
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#include <winpr/assert.h>
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#include <winpr/stream.h>
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#include <freerdp/channels/log.h>
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#define TAG CHANNELS_TAG("rdpgfx.common")
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#include "rdpgfx_common.h"
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static const char* RDPGFX_CMDID_STRINGS[] = { "RDPGFX_CMDID_UNUSED_0000",
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"RDPGFX_CMDID_WIRETOSURFACE_1",
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"RDPGFX_CMDID_WIRETOSURFACE_2",
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"RDPGFX_CMDID_DELETEENCODINGCONTEXT",
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"RDPGFX_CMDID_SOLIDFILL",
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"RDPGFX_CMDID_SURFACETOSURFACE",
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"RDPGFX_CMDID_SURFACETOCACHE",
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"RDPGFX_CMDID_CACHETOSURFACE",
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"RDPGFX_CMDID_EVICTCACHEENTRY",
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"RDPGFX_CMDID_CREATESURFACE",
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"RDPGFX_CMDID_DELETESURFACE",
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"RDPGFX_CMDID_STARTFRAME",
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"RDPGFX_CMDID_ENDFRAME",
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"RDPGFX_CMDID_FRAMEACKNOWLEDGE",
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"RDPGFX_CMDID_RESETGRAPHICS",
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"RDPGFX_CMDID_MAPSURFACETOOUTPUT",
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"RDPGFX_CMDID_CACHEIMPORTOFFER",
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"RDPGFX_CMDID_CACHEIMPORTREPLY",
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"RDPGFX_CMDID_CAPSADVERTISE",
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"RDPGFX_CMDID_CAPSCONFIRM",
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"RDPGFX_CMDID_UNUSED_0014",
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"RDPGFX_CMDID_MAPSURFACETOWINDOW",
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"RDPGFX_CMDID_QOEFRAMEACKNOWLEDGE",
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"RDPGFX_CMDID_MAPSURFACETOSCALEDOUTPUT",
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"RDPGFX_CMDID_MAPSURFACETOSCALEDWINDOW" };
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const char* rdpgfx_get_cmd_id_string(UINT16 cmdId)
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{
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if (cmdId <= RDPGFX_CMDID_MAPSURFACETOSCALEDWINDOW)
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return RDPGFX_CMDID_STRINGS[cmdId];
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else
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return "RDPGFX_CMDID_UNKNOWN";
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}
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const char* rdpgfx_get_codec_id_string(UINT16 codecId)
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{
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switch (codecId)
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{
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case RDPGFX_CODECID_UNCOMPRESSED:
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return "RDPGFX_CODECID_UNCOMPRESSED";
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case RDPGFX_CODECID_CAVIDEO:
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return "RDPGFX_CODECID_CAVIDEO";
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case RDPGFX_CODECID_CLEARCODEC:
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return "RDPGFX_CODECID_CLEARCODEC";
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case RDPGFX_CODECID_PLANAR:
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return "RDPGFX_CODECID_PLANAR";
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case RDPGFX_CODECID_AVC420:
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return "RDPGFX_CODECID_AVC420";
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case RDPGFX_CODECID_AVC444:
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return "RDPGFX_CODECID_AVC444";
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case RDPGFX_CODECID_AVC444v2:
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return "RDPGFX_CODECID_AVC444v2";
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case RDPGFX_CODECID_ALPHA:
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return "RDPGFX_CODECID_ALPHA";
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case RDPGFX_CODECID_CAPROGRESSIVE:
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return "RDPGFX_CODECID_CAPROGRESSIVE";
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case RDPGFX_CODECID_CAPROGRESSIVE_V2:
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return "RDPGFX_CODECID_CAPROGRESSIVE_V2";
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}
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return "RDPGFX_CODECID_UNKNOWN";
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}
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/**
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* Function description
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*
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* @return 0 on success, otherwise a Win32 error code
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*/
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UINT rdpgfx_read_header(wStream* s, RDPGFX_HEADER* header)
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{
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WINPR_ASSERT(s);
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WINPR_ASSERT(header);
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if (!Stream_CheckAndLogRequiredLength(TAG, s, 8))
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return CHANNEL_RC_NO_MEMORY;
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Stream_Read_UINT16(s, header->cmdId); /* cmdId (2 bytes) */
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Stream_Read_UINT16(s, header->flags); /* flags (2 bytes) */
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Stream_Read_UINT32(s, header->pduLength); /* pduLength (4 bytes) */
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if (header->pduLength < 8)
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{
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WLog_ERR(TAG, "header->pduLength %u less than 8!", header->pduLength);
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return ERROR_INVALID_DATA;
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}
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if (!Stream_CheckAndLogRequiredLength(TAG, s, (header->pduLength - 8)))
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return ERROR_INVALID_DATA;
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return CHANNEL_RC_OK;
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}
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/**
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* Function description
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*
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* @return 0 on success, otherwise a Win32 error code
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*/
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UINT rdpgfx_write_header(wStream* s, const RDPGFX_HEADER* header)
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{
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WINPR_ASSERT(s);
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WINPR_ASSERT(header);
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if (!Stream_EnsureRemainingCapacity(s, 8))
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return CHANNEL_RC_NO_MEMORY;
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Stream_Write_UINT16(s, header->cmdId); /* cmdId (2 bytes) */
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Stream_Write_UINT16(s, header->flags); /* flags (2 bytes) */
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Stream_Write_UINT32(s, header->pduLength); /* pduLength (4 bytes) */
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return CHANNEL_RC_OK;
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}
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/**
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* Function description
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*
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* @return 0 on success, otherwise a Win32 error code
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*/
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UINT rdpgfx_read_point16(wStream* s, RDPGFX_POINT16* pt16)
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{
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WINPR_ASSERT(s);
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WINPR_ASSERT(pt16);
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if (!Stream_CheckAndLogRequiredLength(TAG, s, 4))
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return ERROR_INVALID_DATA;
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Stream_Read_UINT16(s, pt16->x); /* x (2 bytes) */
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Stream_Read_UINT16(s, pt16->y); /* y (2 bytes) */
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return CHANNEL_RC_OK;
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}
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/**
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* Function description
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*
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* @return 0 on success, otherwise a Win32 error code
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*/
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UINT rdpgfx_write_point16(wStream* s, const RDPGFX_POINT16* point16)
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{
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WINPR_ASSERT(s);
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WINPR_ASSERT(point16);
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if (!Stream_EnsureRemainingCapacity(s, 4))
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return CHANNEL_RC_NO_MEMORY;
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Stream_Write_UINT16(s, point16->x); /* x (2 bytes) */
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Stream_Write_UINT16(s, point16->y); /* y (2 bytes) */
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return CHANNEL_RC_OK;
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}
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/**
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* Function description
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*
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* @return 0 on success, otherwise a Win32 error code
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*/
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UINT rdpgfx_read_rect16(wStream* s, RECTANGLE_16* rect16)
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{
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WINPR_ASSERT(s);
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WINPR_ASSERT(rect16);
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if (!Stream_CheckAndLogRequiredLength(TAG, s, 8))
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return ERROR_INVALID_DATA;
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Stream_Read_UINT16(s, rect16->left); /* left (2 bytes) */
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Stream_Read_UINT16(s, rect16->top); /* top (2 bytes) */
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Stream_Read_UINT16(s, rect16->right); /* right (2 bytes) */
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Stream_Read_UINT16(s, rect16->bottom); /* bottom (2 bytes) */
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if (rect16->left >= rect16->right)
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return ERROR_INVALID_DATA;
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if (rect16->top >= rect16->bottom)
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return ERROR_INVALID_DATA;
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return CHANNEL_RC_OK;
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}
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/**
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* Function description
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*
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* @return 0 on success, otherwise a Win32 error code
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*/
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UINT rdpgfx_write_rect16(wStream* s, const RECTANGLE_16* rect16)
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{
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WINPR_ASSERT(s);
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WINPR_ASSERT(rect16);
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if (!Stream_EnsureRemainingCapacity(s, 8))
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return CHANNEL_RC_NO_MEMORY;
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Stream_Write_UINT16(s, rect16->left); /* left (2 bytes) */
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Stream_Write_UINT16(s, rect16->top); /* top (2 bytes) */
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Stream_Write_UINT16(s, rect16->right); /* right (2 bytes) */
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Stream_Write_UINT16(s, rect16->bottom); /* bottom (2 bytes) */
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return CHANNEL_RC_OK;
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}
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/**
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* Function description
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*
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* @return 0 on success, otherwise a Win32 error code
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*/
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UINT rdpgfx_read_color32(wStream* s, RDPGFX_COLOR32* color32)
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{
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WINPR_ASSERT(s);
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WINPR_ASSERT(color32);
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if (!Stream_CheckAndLogRequiredLength(TAG, s, 4))
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return ERROR_INVALID_DATA;
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Stream_Read_UINT8(s, color32->B); /* B (1 byte) */
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Stream_Read_UINT8(s, color32->G); /* G (1 byte) */
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Stream_Read_UINT8(s, color32->R); /* R (1 byte) */
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Stream_Read_UINT8(s, color32->XA); /* XA (1 byte) */
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return CHANNEL_RC_OK;
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}
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/**
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* Function description
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*
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* @return 0 on success, otherwise a Win32 error code
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*/
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UINT rdpgfx_write_color32(wStream* s, const RDPGFX_COLOR32* color32)
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{
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WINPR_ASSERT(s);
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WINPR_ASSERT(color32);
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if (!Stream_EnsureRemainingCapacity(s, 4))
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return CHANNEL_RC_NO_MEMORY;
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Stream_Write_UINT8(s, color32->B); /* B (1 byte) */
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Stream_Write_UINT8(s, color32->G); /* G (1 byte) */
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Stream_Write_UINT8(s, color32->R); /* R (1 byte) */
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Stream_Write_UINT8(s, color32->XA); /* XA (1 byte) */
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return CHANNEL_RC_OK;
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}
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