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/**
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* FreeRDP: A Remote Desktop Protocol Implementation
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* NSCodec Codec
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*
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* Copyright 2011 Samsung, Author Jiten Pathy
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* Copyright 2012 Vic Lee
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* Copyright 2016 Armin Novak <armin.novak@thincast.com>
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* Copyright 2016 Thincast Technologies GmbH
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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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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <winpr/crt.h>
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#include <freerdp/codec/nsc.h>
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#include <freerdp/codec/color.h>
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#include "nsc_types.h"
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#include "nsc_encode.h"
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#include "nsc_sse2.h"
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#ifndef NSC_INIT_SIMD
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#define NSC_INIT_SIMD(_nsc_context) \
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do \
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{ \
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} while (0)
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#endif
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static BOOL nsc_decode(NSC_CONTEXT* context)
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{
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UINT16 x;
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UINT16 y;
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UINT16 rw;
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BYTE shift;
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BYTE* bmpdata;
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size_t pos = 0;
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if (!context)
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return FALSE;
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rw = ROUND_UP_TO(context->width, 8);
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shift = context->ColorLossLevel - 1; /* colorloss recovery + YCoCg shift */
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bmpdata = context->BitmapData;
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if (!bmpdata)
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return FALSE;
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for (y = 0; y < context->height; y++)
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{
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const BYTE* yplane;
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const BYTE* coplane;
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const BYTE* cgplane;
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const BYTE* aplane = context->priv->PlaneBuffers[3] + y * context->width; /* A */
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if (context->ChromaSubsamplingLevel)
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{
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yplane = context->priv->PlaneBuffers[0] + y * rw; /* Y */
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coplane = context->priv->PlaneBuffers[1] + (y >> 1) * (rw >> 1); /* Co, supersampled */
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cgplane = context->priv->PlaneBuffers[2] + (y >> 1) * (rw >> 1); /* Cg, supersampled */
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}
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else
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{
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yplane = context->priv->PlaneBuffers[0] + y * context->width; /* Y */
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coplane = context->priv->PlaneBuffers[1] + y * context->width; /* Co */
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cgplane = context->priv->PlaneBuffers[2] + y * context->width; /* Cg */
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}
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for (x = 0; x < context->width; x++)
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{
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INT16 y_val = (INT16)*yplane;
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INT16 co_val = (INT16)(INT8)(*coplane << shift);
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INT16 cg_val = (INT16)(INT8)(*cgplane << shift);
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INT16 r_val = y_val + co_val - cg_val;
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INT16 g_val = y_val + cg_val;
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INT16 b_val = y_val - co_val - cg_val;
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if (pos + 4 > context->BitmapDataLength)
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return FALSE;
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pos += 4;
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*bmpdata++ = MINMAX(b_val, 0, 0xFF);
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*bmpdata++ = MINMAX(g_val, 0, 0xFF);
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*bmpdata++ = MINMAX(r_val, 0, 0xFF);
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*bmpdata++ = *aplane;
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yplane++;
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coplane += (context->ChromaSubsamplingLevel ? x % 2 : 1);
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cgplane += (context->ChromaSubsamplingLevel ? x % 2 : 1);
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aplane++;
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}
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}
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return TRUE;
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}
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static BOOL nsc_rle_decode(BYTE* in, BYTE* out, UINT32 outSize, UINT32 originalSize)
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{
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UINT32 left = originalSize;
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while (left > 4)
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{
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const BYTE value = *in++;
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UINT32 len = 0;
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if (left == 5)
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{
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if (outSize < 1)
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return FALSE;
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outSize--;
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*out++ = value;
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left--;
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}
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else if (value == *in)
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{
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in++;
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if (*in < 0xFF)
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{
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len = (UINT32)*in++;
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len += 2;
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}
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else
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{
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in++;
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len = ((UINT32)(*in++));
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len |= ((UINT32)(*in++)) << 8U;
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len |= ((UINT32)(*in++)) << 16U;
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len |= ((UINT32)(*in++)) << 24U;
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}
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if (outSize < len)
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return FALSE;
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outSize -= len;
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FillMemory(out, len, value);
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out += len;
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left -= len;
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}
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else
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{
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if (outSize < 1)
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return FALSE;
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outSize--;
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*out++ = value;
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left--;
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}
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}
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if ((outSize < 4) || (left < 4))
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return FALSE;
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memcpy(out, in, 4);
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return TRUE;
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}
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static BOOL nsc_rle_decompress_data(NSC_CONTEXT* context)
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{
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UINT16 i;
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BYTE* rle;
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UINT32 planeSize;
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UINT32 originalSize;
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if (!context)
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return FALSE;
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rle = context->Planes;
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for (i = 0; i < 4; i++)
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{
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originalSize = context->OrgByteCount[i];
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planeSize = context->PlaneByteCount[i];
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if (planeSize == 0)
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{
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if (context->priv->PlaneBuffersLength < originalSize)
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return FALSE;
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FillMemory(context->priv->PlaneBuffers[i], originalSize, 0xFF);
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}
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else if (planeSize < originalSize)
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{
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if (!nsc_rle_decode(rle, context->priv->PlaneBuffers[i],
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context->priv->PlaneBuffersLength, originalSize))
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return FALSE;
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}
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else
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{
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if (context->priv->PlaneBuffersLength < originalSize)
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return FALSE;
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CopyMemory(context->priv->PlaneBuffers[i], rle, originalSize);
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}
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rle += planeSize;
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}
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return TRUE;
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}
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static BOOL nsc_stream_initialize(NSC_CONTEXT* context, wStream* s)
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{
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int i;
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if (Stream_GetRemainingLength(s) < 20)
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return FALSE;
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for (i = 0; i < 4; i++)
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Stream_Read_UINT32(s, context->PlaneByteCount[i]);
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Stream_Read_UINT8(s, context->ColorLossLevel); /* ColorLossLevel (1 byte) */
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Stream_Read_UINT8(s, context->ChromaSubsamplingLevel); /* ChromaSubsamplingLevel (1 byte) */
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Stream_Seek(s, 2); /* Reserved (2 bytes) */
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context->Planes = Stream_Pointer(s);
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return TRUE;
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}
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static BOOL nsc_context_initialize(NSC_CONTEXT* context, wStream* s)
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{
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int i;
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UINT32 length;
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UINT32 tempWidth;
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UINT32 tempHeight;
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if (!nsc_stream_initialize(context, s))
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return FALSE;
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length = context->width * context->height * 4;
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if (!context->BitmapData)
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{
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context->BitmapData = calloc(1, length + 16);
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if (!context->BitmapData)
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return FALSE;
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context->BitmapDataLength = length;
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}
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else if (length > context->BitmapDataLength)
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{
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void* tmp;
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tmp = realloc(context->BitmapData, length + 16);
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if (!tmp)
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return FALSE;
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context->BitmapData = tmp;
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context->BitmapDataLength = length;
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}
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tempWidth = ROUND_UP_TO(context->width, 8);
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tempHeight = ROUND_UP_TO(context->height, 2);
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/* The maximum length a decoded plane can reach in all cases */
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length = tempWidth * tempHeight;
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if (length > context->priv->PlaneBuffersLength)
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{
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for (i = 0; i < 4; i++)
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{
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Packit Service |
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void* tmp = (BYTE*)realloc(context->priv->PlaneBuffers[i], length);
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if (!tmp)
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return FALSE;
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1fb8d4 |
|
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context->priv->PlaneBuffers[i] = tmp;
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}
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1fb8d4 |
|
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context->priv->PlaneBuffersLength = length;
|
|
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1fb8d4 |
}
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1fb8d4 |
|
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for (i = 0; i < 4; i++)
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|
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1fb8d4 |
{
|
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context->OrgByteCount[i] = context->width * context->height;
|
|
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1fb8d4 |
}
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1fb8d4 |
|
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1fb8d4 |
if (context->ChromaSubsamplingLevel)
|
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{
|
|
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1fb8d4 |
context->OrgByteCount[0] = tempWidth * context->height;
|
|
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1fb8d4 |
context->OrgByteCount[1] = (tempWidth >> 1) * (tempHeight >> 1);
|
|
Packit |
1fb8d4 |
context->OrgByteCount[2] = context->OrgByteCount[1];
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1fb8d4 |
}
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|
Packit |
1fb8d4 |
|
|
Packit |
1fb8d4 |
return TRUE;
|
|
Packit |
1fb8d4 |
}
|
|
Packit |
1fb8d4 |
|
|
Packit Service |
5a9772 |
static void nsc_profiler_print(NSC_CONTEXT_PRIV* priv){
|
|
Packit Service |
5a9772 |
PROFILER_PRINT_HEADER PROFILER_PRINT(priv->prof_nsc_rle_decompress_data)
|
|
Packit Service |
5a9772 |
PROFILER_PRINT(priv->prof_nsc_decode) PROFILER_PRINT(priv->prof_nsc_rle_compress_data)
|
|
Packit Service |
5a9772 |
PROFILER_PRINT(priv->prof_nsc_encode) PROFILER_PRINT_FOOTER
|
|
Packit |
1fb8d4 |
}
|
|
Packit |
1fb8d4 |
|
|
Packit |
1fb8d4 |
BOOL nsc_context_reset(NSC_CONTEXT* context, UINT32 width, UINT32 height)
|
|
Packit |
1fb8d4 |
{
|
|
Packit |
1fb8d4 |
if (!context)
|
|
Packit |
1fb8d4 |
return FALSE;
|
|
Packit |
1fb8d4 |
|
|
Packit Service |
5a9772 |
if ((width > UINT16_MAX) || (height > UINT16_MAX))
|
|
Packit Service |
5a9772 |
return FALSE;
|
|
Packit Service |
5a9772 |
|
|
Packit Service |
5a9772 |
context->width = (UINT16)width;
|
|
Packit Service |
5a9772 |
context->height = (UINT16)height;
|
|
Packit |
1fb8d4 |
return TRUE;
|
|
Packit |
1fb8d4 |
}
|
|
Packit |
1fb8d4 |
|
|
Packit |
1fb8d4 |
NSC_CONTEXT* nsc_context_new(void)
|
|
Packit |
1fb8d4 |
{
|
|
Packit |
1fb8d4 |
NSC_CONTEXT* context;
|
|
Packit Service |
5a9772 |
context = (NSC_CONTEXT*)calloc(1, sizeof(NSC_CONTEXT));
|
|
Packit |
1fb8d4 |
|
|
Packit |
1fb8d4 |
if (!context)
|
|
Packit |
1fb8d4 |
return NULL;
|
|
Packit |
1fb8d4 |
|
|
Packit Service |
5a9772 |
context->priv = (NSC_CONTEXT_PRIV*)calloc(1, sizeof(NSC_CONTEXT_PRIV));
|
|
Packit |
1fb8d4 |
|
|
Packit |
1fb8d4 |
if (!context->priv)
|
|
Packit |
1fb8d4 |
goto error;
|
|
Packit |
1fb8d4 |
|
|
Packit |
1fb8d4 |
context->priv->log = WLog_Get("com.freerdp.codec.nsc");
|
|
Packit |
1fb8d4 |
WLog_OpenAppender(context->priv->log);
|
|
Packit |
1fb8d4 |
context->BitmapData = NULL;
|
|
Packit |
1fb8d4 |
context->decode = nsc_decode;
|
|
Packit |
1fb8d4 |
context->encode = nsc_encode;
|
|
Packit |
1fb8d4 |
|
|
Packit Service |
5a9772 |
PROFILER_CREATE(context->priv->prof_nsc_rle_decompress_data, "nsc_rle_decompress_data")
|
|
Packit |
1fb8d4 |
PROFILER_CREATE(context->priv->prof_nsc_decode, "nsc_decode")
|
|
Packit Service |
5a9772 |
PROFILER_CREATE(context->priv->prof_nsc_rle_compress_data, "nsc_rle_compress_data")
|
|
Packit |
1fb8d4 |
PROFILER_CREATE(context->priv->prof_nsc_encode, "nsc_encode")
|
|
Packit |
1fb8d4 |
/* Default encoding parameters */
|
|
Packit |
1fb8d4 |
context->ColorLossLevel = 3;
|
|
Packit |
1fb8d4 |
context->ChromaSubsamplingLevel = 1;
|
|
Packit |
1fb8d4 |
/* init optimized methods */
|
|
Packit |
1fb8d4 |
NSC_INIT_SIMD(context);
|
|
Packit |
1fb8d4 |
return context;
|
|
Packit |
1fb8d4 |
error:
|
|
Packit |
1fb8d4 |
nsc_context_free(context);
|
|
Packit |
1fb8d4 |
return NULL;
|
|
Packit |
1fb8d4 |
}
|
|
Packit |
1fb8d4 |
|
|
Packit |
1fb8d4 |
void nsc_context_free(NSC_CONTEXT* context)
|
|
Packit |
1fb8d4 |
{
|
|
Packit |
1fb8d4 |
size_t i;
|
|
Packit |
1fb8d4 |
|
|
Packit |
1fb8d4 |
if (!context)
|
|
Packit |
1fb8d4 |
return;
|
|
Packit |
1fb8d4 |
|
|
Packit |
1fb8d4 |
if (context->priv)
|
|
Packit |
1fb8d4 |
{
|
|
Packit |
1fb8d4 |
for (i = 0; i < 4; i++)
|
|
Packit |
1fb8d4 |
free(context->priv->PlaneBuffers[i]);
|
|
Packit |
1fb8d4 |
|
|
Packit |
1fb8d4 |
nsc_profiler_print(context->priv);
|
|
Packit |
1fb8d4 |
PROFILER_FREE(context->priv->prof_nsc_rle_decompress_data)
|
|
Packit |
1fb8d4 |
PROFILER_FREE(context->priv->prof_nsc_decode)
|
|
Packit |
1fb8d4 |
PROFILER_FREE(context->priv->prof_nsc_rle_compress_data)
|
|
Packit |
1fb8d4 |
PROFILER_FREE(context->priv->prof_nsc_encode)
|
|
Packit |
1fb8d4 |
free(context->priv);
|
|
Packit |
1fb8d4 |
}
|
|
Packit |
1fb8d4 |
|
|
Packit |
1fb8d4 |
free(context->BitmapData);
|
|
Packit |
1fb8d4 |
free(context);
|
|
Packit |
1fb8d4 |
}
|
|
Packit |
1fb8d4 |
|
|
Packit |
1fb8d4 |
BOOL nsc_context_set_pixel_format(NSC_CONTEXT* context, UINT32 pixel_format)
|
|
Packit |
1fb8d4 |
{
|
|
Packit Service |
5a9772 |
return nsc_context_set_parameters(context, NSC_COLOR_FORMAT, pixel_format);
|
|
Packit Service |
5a9772 |
}
|
|
Packit Service |
5a9772 |
|
|
Packit Service |
5a9772 |
BOOL nsc_context_set_parameters(NSC_CONTEXT* context, NSC_PARAMETER what, UINT32 value)
|
|
Packit Service |
5a9772 |
{
|
|
Packit |
1fb8d4 |
if (!context)
|
|
Packit |
1fb8d4 |
return FALSE;
|
|
Packit |
1fb8d4 |
|
|
Packit Service |
5a9772 |
switch (what)
|
|
Packit Service |
5a9772 |
{
|
|
Packit Service |
5a9772 |
case NSC_COLOR_LOSS_LEVEL:
|
|
Packit Service |
5a9772 |
context->ColorLossLevel = value;
|
|
Packit Service |
5a9772 |
break;
|
|
Packit Service |
5a9772 |
case NSC_ALLOW_SUBSAMPLING:
|
|
Packit Service |
5a9772 |
context->ChromaSubsamplingLevel = value;
|
|
Packit Service |
5a9772 |
break;
|
|
Packit Service |
5a9772 |
case NSC_DYNAMIC_COLOR_FIDELITY:
|
|
Packit Service |
5a9772 |
context->DynamicColorFidelity = value != 0;
|
|
Packit Service |
5a9772 |
break;
|
|
Packit Service |
5a9772 |
case NSC_COLOR_FORMAT:
|
|
Packit Service |
5a9772 |
context->format = value;
|
|
Packit Service |
5a9772 |
break;
|
|
Packit Service |
5a9772 |
default:
|
|
Packit Service |
5a9772 |
return FALSE;
|
|
Packit Service |
5a9772 |
}
|
|
Packit |
1fb8d4 |
return TRUE;
|
|
Packit |
1fb8d4 |
}
|
|
Packit |
1fb8d4 |
|
|
Packit Service |
5a9772 |
BOOL nsc_process_message(NSC_CONTEXT* context, UINT16 bpp, UINT32 width, UINT32 height,
|
|
Packit Service |
5a9772 |
const BYTE* data, UINT32 length, BYTE* pDstData, UINT32 DstFormat,
|
|
Packit Service |
5a9772 |
UINT32 nDstStride, UINT32 nXDst, UINT32 nYDst, UINT32 nWidth,
|
|
Packit |
1fb8d4 |
UINT32 nHeight, UINT32 flip)
|
|
Packit |
1fb8d4 |
{
|
|
Packit |
1fb8d4 |
wStream* s;
|
|
Packit |
1fb8d4 |
BOOL ret;
|
|
Packit Service |
5a9772 |
if (!context || !data || !pDstData)
|
|
Packit Service |
5a9772 |
return FALSE;
|
|
Packit Service |
5a9772 |
|
|
Packit |
1fb8d4 |
s = Stream_New((BYTE*)data, length);
|
|
Packit |
1fb8d4 |
|
|
Packit |
1fb8d4 |
if (!s)
|
|
Packit |
1fb8d4 |
return FALSE;
|
|
Packit |
1fb8d4 |
|
|
Packit |
1fb8d4 |
if (nDstStride == 0)
|
|
Packit |
1fb8d4 |
nDstStride = nWidth * GetBytesPerPixel(DstFormat);
|
|
Packit |
1fb8d4 |
|
|
Packit |
1fb8d4 |
switch (bpp)
|
|
Packit |
1fb8d4 |
{
|
|
Packit |
1fb8d4 |
case 32:
|
|
Packit |
1fb8d4 |
context->format = PIXEL_FORMAT_BGRA32;
|
|
Packit |
1fb8d4 |
break;
|
|
Packit |
1fb8d4 |
|
|
Packit |
1fb8d4 |
case 24:
|
|
Packit |
1fb8d4 |
context->format = PIXEL_FORMAT_BGR24;
|
|
Packit |
1fb8d4 |
break;
|
|
Packit |
1fb8d4 |
|
|
Packit |
1fb8d4 |
case 16:
|
|
Packit |
1fb8d4 |
context->format = PIXEL_FORMAT_BGR16;
|
|
Packit |
1fb8d4 |
break;
|
|
Packit |
1fb8d4 |
|
|
Packit |
1fb8d4 |
case 8:
|
|
Packit |
1fb8d4 |
context->format = PIXEL_FORMAT_RGB8;
|
|
Packit |
1fb8d4 |
break;
|
|
Packit |
1fb8d4 |
|
|
Packit |
1fb8d4 |
case 4:
|
|
Packit |
1fb8d4 |
context->format = PIXEL_FORMAT_A4;
|
|
Packit |
1fb8d4 |
break;
|
|
Packit |
1fb8d4 |
|
|
Packit |
1fb8d4 |
default:
|
|
Packit |
1fb8d4 |
Stream_Free(s, TRUE);
|
|
Packit |
1fb8d4 |
return FALSE;
|
|
Packit |
1fb8d4 |
}
|
|
Packit |
1fb8d4 |
|
|
Packit |
1fb8d4 |
context->width = width;
|
|
Packit |
1fb8d4 |
context->height = height;
|
|
Packit |
1fb8d4 |
ret = nsc_context_initialize(context, s);
|
|
Packit |
1fb8d4 |
Stream_Free(s, FALSE);
|
|
Packit |
1fb8d4 |
|
|
Packit |
1fb8d4 |
if (!ret)
|
|
Packit |
1fb8d4 |
return FALSE;
|
|
Packit |
1fb8d4 |
|
|
Packit |
1fb8d4 |
/* RLE decode */
|
|
Packit |
1fb8d4 |
{
|
|
Packit |
1fb8d4 |
BOOL rc;
|
|
Packit |
1fb8d4 |
PROFILER_ENTER(context->priv->prof_nsc_rle_decompress_data)
|
|
Packit |
1fb8d4 |
rc = nsc_rle_decompress_data(context);
|
|
Packit |
1fb8d4 |
PROFILER_EXIT(context->priv->prof_nsc_rle_decompress_data)
|
|
Packit |
1fb8d4 |
|
|
Packit |
1fb8d4 |
if (!rc)
|
|
Packit |
1fb8d4 |
return FALSE;
|
|
Packit |
1fb8d4 |
}
|
|
Packit |
1fb8d4 |
/* Colorloss recover, Chroma supersample and AYCoCg to ARGB Conversion in one step */
|
|
Packit |
1fb8d4 |
{
|
|
Packit |
1fb8d4 |
BOOL rc;
|
|
Packit |
1fb8d4 |
PROFILER_ENTER(context->priv->prof_nsc_decode)
|
|
Packit |
1fb8d4 |
rc = context->decode(context);
|
|
Packit |
1fb8d4 |
PROFILER_EXIT(context->priv->prof_nsc_decode)
|
|
Packit |
1fb8d4 |
|
|
Packit |
1fb8d4 |
if (!rc)
|
|
Packit |
1fb8d4 |
return FALSE;
|
|
Packit |
1fb8d4 |
}
|
|
Packit |
1fb8d4 |
|
|
Packit Service |
5a9772 |
if (!freerdp_image_copy(pDstData, DstFormat, nDstStride, nXDst, nYDst, width, height,
|
|
Packit Service |
5a9772 |
context->BitmapData, PIXEL_FORMAT_BGRA32, 0, 0, 0, NULL, flip))
|
|
Packit |
1fb8d4 |
return FALSE;
|
|
Packit |
1fb8d4 |
|
|
Packit |
1fb8d4 |
return TRUE;
|
|
Packit |
1fb8d4 |
}
|