/src/FreeRDP/libfreerdp/codec/nsc.c

Source (jump to first uncovered line)
/**
 * FreeRDP: A Remote Desktop Protocol Implementation
 * NSCodec Codec
 *
 * Copyright 2011 Samsung, Author Jiten Pathy
 * Copyright 2012 Vic Lee
 * Copyright 2016 Armin Novak <armin.novak@thincast.com>
 * Copyright 2016 Thincast Technologies GmbH
 *
 * 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.
 */

#include <freerdp/config.h>

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include <winpr/crt.h>

#include <freerdp/codec/nsc.h>
#include <freerdp/codec/color.h>

#include "nsc_types.h"
#include "nsc_encode.h"

#include "nsc_sse2.h"

#include <freerdp/log.h>
#define TAG FREERDP_TAG("codec.nsc")

#ifndef NSC_INIT_SIMD
#define NSC_INIT_SIMD(_nsc_context) \
  do                              \
  {                               \
  } while (0)
#endif

static BOOL nsc_decode(NSC_CONTEXT* context)
{
  UINT16 rw = 0;
  BYTE shift = 0;
  BYTE* bmpdata = NULL;
  size_t pos = 0;

  if (!context)
    return FALSE;

  rw = ROUND_UP_TO(context->width, 8);
  shift = context->ColorLossLevel - 1; /* colorloss recovery + YCoCg shift */
  bmpdata = context->BitmapData;

  if (!bmpdata)
    return FALSE;

  for (UINT32 y = 0; y < context->height; y++)
  {
    const BYTE* yplane = NULL;
    const BYTE* coplane = NULL;
    const BYTE* cgplane = NULL;
    const BYTE* aplane = context->priv->PlaneBuffers[3] + y * context->width; /* A */

    if (context->ChromaSubsamplingLevel)
    {
      yplane = context->priv->PlaneBuffers[0] + y * rw;                /* Y */
      coplane = context->priv->PlaneBuffers[1] + (y >> 1) * (rw >> 1); /* Co, supersampled */
      cgplane = context->priv->PlaneBuffers[2] + (y >> 1) * (rw >> 1); /* Cg, supersampled */
    }
    else
    {
      yplane = context->priv->PlaneBuffers[0] + y * context->width;  /* Y */
      coplane = context->priv->PlaneBuffers[1] + y * context->width; /* Co */
      cgplane = context->priv->PlaneBuffers[2] + y * context->width; /* Cg */
    }

    for (UINT32 x = 0; x < context->width; x++)
    {
      INT16 y_val = (INT16)*yplane;
      INT16 co_val = (INT16)(INT8)(((INT16)*coplane) << shift);
      INT16 cg_val = (INT16)(INT8)(((INT16)*cgplane) << shift);
      INT16 r_val = y_val + co_val - cg_val;
      INT16 g_val = y_val + cg_val;
      INT16 b_val = y_val - co_val - cg_val;

      if (pos + 4 > context->BitmapDataLength)
        return FALSE;

      pos += 4;
      *bmpdata++ = MINMAX(b_val, 0, 0xFF);
      *bmpdata++ = MINMAX(g_val, 0, 0xFF);
      *bmpdata++ = MINMAX(r_val, 0, 0xFF);
      *bmpdata++ = *aplane;
      yplane++;
      coplane += (context->ChromaSubsamplingLevel ? x % 2 : 1);
      cgplane += (context->ChromaSubsamplingLevel ? x % 2 : 1);
      aplane++;
    }
  }

  return TRUE;
}

static BOOL nsc_rle_decode(const BYTE* WINPR_RESTRICT in, size_t inSize, BYTE* WINPR_RESTRICT out,
                           UINT32 outSize, UINT32 originalSize)
{
  UINT32 left = originalSize;

  while (left > 4)
  {
    if (inSize < 1)
      return FALSE;
    inSize--;

    const BYTE value = *in++;
    UINT32 len = 0;

    if (left == 5)
    {
      if (outSize < 1)
        return FALSE;

      outSize--;
      *out++ = value;
      left--;
    }
    else if (inSize < 1)
      return FALSE;
    else if (value == *in)
    {
      inSize--;
      in++;

      if (inSize < 1)
        return FALSE;
      else if (*in < 0xFF)
      {
        inSize--;
        len = (UINT32)*in++;
        len += 2;
      }
      else
      {
        if (inSize < 5)
          return FALSE;
        inSize -= 5;
        in++;
        len = ((UINT32)(*in++));
        len |= ((UINT32)(*in++)) << 8U;
        len |= ((UINT32)(*in++)) << 16U;
        len |= ((UINT32)(*in++)) << 24U;
      }

      if ((outSize < len) || (left < len))
        return FALSE;

      outSize -= len;
      FillMemory(out, len, value);
      out += len;
      left -= len;
    }
    else
    {
      if (outSize < 1)
        return FALSE;

      outSize--;
      *out++ = value;
      left--;
    }
  }

  if ((outSize < 4) || (left < 4))
    return FALSE;

  if (inSize < 4)
    return FALSE;
  memcpy(out, in, 4);
  return TRUE;
}

static BOOL nsc_rle_decompress_data(NSC_CONTEXT* context)
{
  if (!context)
    return FALSE;

  const BYTE* rle = context->Planes;
  size_t rleSize = context->PlanesSize;
  WINPR_ASSERT(rle);

  for (size_t i = 0; i < 4; i++)
  {
    const UINT32 originalSize = context->OrgByteCount[i];
    const UINT32 planeSize = context->PlaneByteCount[i];

    if (rleSize < planeSize)
      return FALSE;

    if (planeSize == 0)
    {
      if (context->priv->PlaneBuffersLength < originalSize)
        return FALSE;

      FillMemory(context->priv->PlaneBuffers[i], originalSize, 0xFF);
    }
    else if (planeSize < originalSize)
    {
      if (!nsc_rle_decode(rle, rleSize, context->priv->PlaneBuffers[i],
                          context->priv->PlaneBuffersLength, originalSize))
        return FALSE;
    }
    else
    {
      if (context->priv->PlaneBuffersLength < originalSize)
        return FALSE;

      if (rleSize < originalSize)
        return FALSE;

      CopyMemory(context->priv->PlaneBuffers[i], rle, originalSize);
    }

    rle += planeSize;
    rleSize -= planeSize;
  }

  return TRUE;
}

static BOOL nsc_stream_initialize(NSC_CONTEXT* context, wStream* s)
{
  WINPR_ASSERT(context);
  WINPR_ASSERT(context->priv);
  if (!Stream_CheckAndLogRequiredLengthWLog(context->priv->log, s, 20))
    return FALSE;

  size_t total = 0;
  for (size_t i = 0; i < 4; i++)
  {
    Stream_Read_UINT32(s, context->PlaneByteCount[i]);
    total += context->PlaneByteCount[i];
  }

  Stream_Read_UINT8(s, context->ColorLossLevel);         /* ColorLossLevel (1 byte) */
  if ((context->ColorLossLevel < 1) || (context->ColorLossLevel > 7))
  {
    WLog_Print(context->priv->log, WLOG_ERROR,
               "ColorLossLevel=%" PRIu8 " out of range, must be [1,7] inclusive",
               context->ColorLossLevel);
    return FALSE;
  }
  Stream_Read_UINT8(s, context->ChromaSubsamplingLevel); /* ChromaSubsamplingLevel (1 byte) */
  Stream_Seek(s, 2);                                     /* Reserved (2 bytes) */
  context->Planes = Stream_Pointer(s);
  context->PlanesSize = total;
  return Stream_CheckAndLogRequiredLengthWLog(context->priv->log, s, total);
}

static BOOL nsc_context_initialize(NSC_CONTEXT* context, wStream* s)
{
  if (!nsc_stream_initialize(context, s))
    return FALSE;

  const size_t blength = 4ull * context->width * context->height;

  if (!context->BitmapData || (blength > context->BitmapDataLength))
  {
    void* tmp = winpr_aligned_recalloc(context->BitmapData, blength + 16, sizeof(BYTE), 32);

    if (!tmp)
      return FALSE;

    context->BitmapData = tmp;
    context->BitmapDataLength = blength;
  }

  const UINT32 tempWidth = ROUND_UP_TO(context->width, 8);
  const UINT32 tempHeight = ROUND_UP_TO(context->height, 2);
  /* The maximum length a decoded plane can reach in all cases */
  const size_t plength = 1ull * tempWidth * tempHeight;

  if (plength > context->priv->PlaneBuffersLength)
  {
    for (size_t i = 0; i < 4; i++)
    {
      void* tmp = (BYTE*)winpr_aligned_recalloc(context->priv->PlaneBuffers[i], plength,
                                                sizeof(BYTE), 32);

      if (!tmp)
        return FALSE;

      context->priv->PlaneBuffers[i] = tmp;
    }

    context->priv->PlaneBuffersLength = plength;
  }

  for (size_t i = 0; i < 4; i++)
    context->OrgByteCount[i] = context->width * context->height;

  if (context->ChromaSubsamplingLevel)
  {
    context->OrgByteCount[0] = tempWidth * context->height;
    context->OrgByteCount[1] = (tempWidth >> 1) * (tempHeight >> 1);
    context->OrgByteCount[2] = context->OrgByteCount[1];
  }

  return TRUE;
}

static void nsc_profiler_print(NSC_CONTEXT_PRIV* priv)
{
  WINPR_UNUSED(priv);

  PROFILER_PRINT_HEADER
  PROFILER_PRINT(priv->prof_nsc_rle_decompress_data)
  PROFILER_PRINT(priv->prof_nsc_decode)
  PROFILER_PRINT(priv->prof_nsc_rle_compress_data)
  PROFILER_PRINT(priv->prof_nsc_encode)
  PROFILER_PRINT_FOOTER
}

BOOL nsc_context_reset(NSC_CONTEXT* context, UINT32 width, UINT32 height)
{
  if (!context)
    return FALSE;

  if ((width > UINT16_MAX) || (height > UINT16_MAX))
    return FALSE;

  context->width = (UINT16)width;
  context->height = (UINT16)height;
  return TRUE;
}

NSC_CONTEXT* nsc_context_new(void)
{
  NSC_CONTEXT* context = (NSC_CONTEXT*)winpr_aligned_calloc(1, sizeof(NSC_CONTEXT), 32);

  if (!context)
    return NULL;

  context->priv = (NSC_CONTEXT_PRIV*)winpr_aligned_calloc(1, sizeof(NSC_CONTEXT_PRIV), 32);

  if (!context->priv)
    goto error;

  context->priv->log = WLog_Get("com.freerdp.codec.nsc");
  WLog_OpenAppender(context->priv->log);
  context->BitmapData = NULL;
  context->decode = nsc_decode;
  context->encode = nsc_encode;

  PROFILER_CREATE(context->priv->prof_nsc_rle_decompress_data, "nsc_rle_decompress_data")
  PROFILER_CREATE(context->priv->prof_nsc_decode, "nsc_decode")
  PROFILER_CREATE(context->priv->prof_nsc_rle_compress_data, "nsc_rle_compress_data")
  PROFILER_CREATE(context->priv->prof_nsc_encode, "nsc_encode")
  /* Default encoding parameters */
  context->ColorLossLevel = 3;
  context->ChromaSubsamplingLevel = 1;
  /* init optimized methods */
  NSC_INIT_SIMD(context);
  return context;
error:
  WINPR_PRAGMA_DIAG_PUSH
  WINPR_PRAGMA_DIAG_IGNORED_MISMATCHED_DEALLOC
  nsc_context_free(context);
  WINPR_PRAGMA_DIAG_POP
  return NULL;
}

void nsc_context_free(NSC_CONTEXT* context)
{
  if (!context)
    return;

  if (context->priv)
  {
    for (size_t i = 0; i < 5; i++)
      winpr_aligned_free(context->priv->PlaneBuffers[i]);

    nsc_profiler_print(context->priv);
    PROFILER_FREE(context->priv->prof_nsc_rle_decompress_data)
    PROFILER_FREE(context->priv->prof_nsc_decode)
    PROFILER_FREE(context->priv->prof_nsc_rle_compress_data)
    PROFILER_FREE(context->priv->prof_nsc_encode)
    winpr_aligned_free(context->priv);
  }

  winpr_aligned_free(context->BitmapData);
  winpr_aligned_free(context);
}

#if defined(WITH_FREERDP_DEPRECATED)
BOOL nsc_context_set_pixel_format(NSC_CONTEXT* context, UINT32 pixel_format)
{
  return nsc_context_set_parameters(context, NSC_COLOR_FORMAT, pixel_format);
}
#endif

BOOL nsc_context_set_parameters(NSC_CONTEXT* context, NSC_PARAMETER what, UINT32 value)
{
  if (!context)
    return FALSE;

  switch (what)
  {
    case NSC_COLOR_LOSS_LEVEL:
      context->ColorLossLevel = value;
      break;
    case NSC_ALLOW_SUBSAMPLING:
      context->ChromaSubsamplingLevel = value;
      break;
    case NSC_DYNAMIC_COLOR_FIDELITY:
      context->DynamicColorFidelity = value != 0;
      break;
    case NSC_COLOR_FORMAT:
      context->format = value;
      break;
    default:
      return FALSE;
  }
  return TRUE;
}

BOOL nsc_process_message(NSC_CONTEXT* context, UINT16 bpp, UINT32 width, UINT32 height,
                         const BYTE* WINPR_RESTRICT data, UINT32 length,
                         BYTE* WINPR_RESTRICT pDstData, UINT32 DstFormat, UINT32 nDstStride,
                         UINT32 nXDst, UINT32 nYDst, UINT32 nWidth, UINT32 nHeight, UINT32 flip)
{
  wStream* s = NULL;
  wStream sbuffer = { 0 };
  BOOL ret = 0;
  if (!context || !data || !pDstData)
    return FALSE;

  s = Stream_StaticConstInit(&sbuffer, data, length);

  if (!s)
    return FALSE;

  if (nDstStride == 0)
    nDstStride = nWidth * FreeRDPGetBytesPerPixel(DstFormat);

  switch (bpp)
  {
    case 32:
      context->format = PIXEL_FORMAT_BGRA32;
      break;

    case 24:
      context->format = PIXEL_FORMAT_BGR24;
      break;

    case 16:
      context->format = PIXEL_FORMAT_BGR16;
      break;

    case 8:
      context->format = PIXEL_FORMAT_RGB8;
      break;

    case 4:
      context->format = PIXEL_FORMAT_A4;
      break;

    default:
      return FALSE;
  }

  context->width = width;
  context->height = height;
  ret = nsc_context_initialize(context, s);

  if (!ret)
    return FALSE;

  /* RLE decode */
  {
    BOOL rc = 0;
    PROFILER_ENTER(context->priv->prof_nsc_rle_decompress_data)
    rc = nsc_rle_decompress_data(context);
    PROFILER_EXIT(context->priv->prof_nsc_rle_decompress_data)

    if (!rc)
      return FALSE;
  }
  /* Colorloss recover, Chroma supersample and AYCoCg to ARGB Conversion in one step */
  {
    BOOL rc = 0;
    PROFILER_ENTER(context->priv->prof_nsc_decode)
    rc = context->decode(context);
    PROFILER_EXIT(context->priv->prof_nsc_decode)

    if (!rc)
      return FALSE;
  }

  if (!freerdp_image_copy(pDstData, DstFormat, nDstStride, nXDst, nYDst, width, height,
                          context->BitmapData, PIXEL_FORMAT_BGRA32, 0, 0, 0, NULL, flip))
    return FALSE;

  return TRUE;
}

Coverage Report

Created: 2024-05-20 06:11

Line	Count	Source (jump to first uncovered line)
1		/**
2		* FreeRDP: A Remote Desktop Protocol Implementation
3		* NSCodec Codec
4		*
5		* Copyright 2011 Samsung, Author Jiten Pathy
6		* Copyright 2012 Vic Lee
7		* Copyright 2016 Armin Novak <armin.novak@thincast.com>
8		* Copyright 2016 Thincast Technologies GmbH
9		*
10		* Licensed under the Apache License, Version 2.0 (the "License");
11		* you may not use this file except in compliance with the License.
12		* You may obtain a copy of the License at
13		*
14		* http://www.apache.org/licenses/LICENSE-2.0
15		*
16		* Unless required by applicable law or agreed to in writing, software
17		* distributed under the License is distributed on an "AS IS" BASIS,
18		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
19		* See the License for the specific language governing permissions and
20		* limitations under the License.
21		*/
22
23		#include <freerdp/config.h>
24
25		#include <stdio.h>
26		#include <stdlib.h>
27		#include <string.h>
28
29		#include <winpr/crt.h>
30
31		#include <freerdp/codec/nsc.h>
32		#include <freerdp/codec/color.h>
33
34		#include "nsc_types.h"
35		#include "nsc_encode.h"
36
37		#include "nsc_sse2.h"
38
39		#include <freerdp/log.h>
40		#define TAG FREERDP_TAG("codec.nsc")
41
42		#ifndef NSC_INIT_SIMD
43		#define NSC_INIT_SIMD(_nsc_context) \
44	17.1k	do \
45	17.1k	{ \
46	17.1k	} while (0)
47		#endif
48
49		static BOOL nsc_decode(NSC_CONTEXT* context)
50	261	{
51	261	UINT16 rw = 0;
52	261	BYTE shift = 0;
53	261	BYTE* bmpdata = NULL;
54	261	size_t pos = 0;
55
56	261	if (!context)
57	0	return FALSE;
58
59	261	rw = ROUND_UP_TO(context->width, 8);
60	261	shift = context->ColorLossLevel - 1; /* colorloss recovery + YCoCg shift */
61	261	bmpdata = context->BitmapData;
62
63	261	if (!bmpdata)
64	0	return FALSE;
65
66	1.37k	for (UINT32 y = 0; y < context->height; y++)
67	1.11k	{
68	1.11k	const BYTE* yplane = NULL;
69	1.11k	const BYTE* coplane = NULL;
70	1.11k	const BYTE* cgplane = NULL;
71	1.11k	const BYTE* aplane = context->priv->PlaneBuffers[3] + y * context->width; /* A */
72
73	1.11k	if (context->ChromaSubsamplingLevel)
74	770	{
75	770	yplane = context->priv->PlaneBuffers[0] + y * rw; /* Y */
76	770	coplane = context->priv->PlaneBuffers[1] + (y >> 1) * (rw >> 1); /* Co, supersampled */
77	770	cgplane = context->priv->PlaneBuffers[2] + (y >> 1) * (rw >> 1); /* Cg, supersampled */
78	770	}
79	341	else
80	341	{
81	341	yplane = context->priv->PlaneBuffers[0] + y * context->width; /* Y */
82	341	coplane = context->priv->PlaneBuffers[1] + y * context->width; /* Co */
83	341	cgplane = context->priv->PlaneBuffers[2] + y * context->width; /* Cg */
84	341	}
85
86	15.7k	for (UINT32 x = 0; x < context->width; x++)
87	14.6k	{
88	14.6k	INT16 y_val = (INT16)*yplane;
89	14.6k	INT16 co_val = (INT16)(INT8)(((INT16)*coplane) << shift);
90	14.6k	INT16 cg_val = (INT16)(INT8)(((INT16)*cgplane) << shift);
91	14.6k	INT16 r_val = y_val + co_val - cg_val;
92	14.6k	INT16 g_val = y_val + cg_val;
93	14.6k	INT16 b_val = y_val - co_val - cg_val;
94
95	14.6k	if (pos + 4 > context->BitmapDataLength)
96	0	return FALSE;
97
98	14.6k	pos += 4;
99	14.6k	*bmpdata++ = MINMAX(b_val, 0, 0xFF);
100	14.6k	*bmpdata++ = MINMAX(g_val, 0, 0xFF);
101	14.6k	*bmpdata++ = MINMAX(r_val, 0, 0xFF);
102	14.6k	bmpdata++ = aplane;
103	14.6k	yplane++;
104	14.6k	coplane += (context->ChromaSubsamplingLevel ? x % 2 : 1);
105	14.6k	cgplane += (context->ChromaSubsamplingLevel ? x % 2 : 1);
106	14.6k	aplane++;
107	14.6k	}
108	1.11k	}
109
110	261	return TRUE;
111	261	}
112
113		static BOOL nsc_rle_decode(const BYTE* WINPR_RESTRICT in, size_t inSize, BYTE* WINPR_RESTRICT out,
114		UINT32 outSize, UINT32 originalSize)
115	253	{
116	253	UINT32 left = originalSize;
117
118	2.84k	while (left > 4)
119	2.73k	{
120	2.73k	if (inSize < 1)
121	15	return FALSE;
122	2.71k	inSize--;
123
124	2.71k	const BYTE value = *in++;
125	2.71k	UINT32 len = 0;
126
127	2.71k	if (left == 5)
128	77	{
129	77	if (outSize < 1)
130	0	return FALSE;
131
132	77	outSize--;
133	77	*out++ = value;
134	77	left--;
135	77	}
136	2.63k	else if (inSize < 1)
137	18	return FALSE;
138	2.62k	else if (value == *in)
139	1.10k	{
140	1.10k	inSize--;
141	1.10k	in++;
142
143	1.10k	if (inSize < 1)
144	8	return FALSE;
145	1.10k	else if (*in < 0xFF)
146	964	{
147	964	inSize--;
148	964	len = (UINT32)*in++;
149	964	len += 2;
150	964	}
151	137	else
152	137	{
153	137	if (inSize < 5)
154	7	return FALSE;
155	130	inSize -= 5;
156	130	in++;
157	130	len = ((UINT32)(*in++));
158	130	len \|= ((UINT32)(*in++)) << 8U;
159	130	len \|= ((UINT32)(*in++)) << 16U;
160	130	len \|= ((UINT32)(*in++)) << 24U;
161	130	}
162
163	1.09k	if ((outSize < len) \|\| (left < len))
164	95	return FALSE;
165
166	999	outSize -= len;
167	999	FillMemory(out, len, value);
168	999	out += len;
169	999	left -= len;
170	999	}
171	1.51k	else
172	1.51k	{
173	1.51k	if (outSize < 1)
174	0	return FALSE;
175
176	1.51k	outSize--;
177	1.51k	*out++ = value;
178	1.51k	left--;
179	1.51k	}
180	2.71k	}
181
182	110	if ((outSize < 4) \|\| (left < 4))
183	13	return FALSE;
184
185	97	if (inSize < 4)
186	8	return FALSE;
187	89	memcpy(out, in, 4);
188	89	return TRUE;
189	97	}
190
191		static BOOL nsc_rle_decompress_data(NSC_CONTEXT* context)
192	425	{
193	425	if (!context)
194	0	return FALSE;
195
196	425	const BYTE* rle = context->Planes;
197	425	size_t rleSize = context->PlanesSize;
198	425	WINPR_ASSERT(rle);
199
200	1.51k	for (size_t i = 0; i < 4; i++)
201	1.25k	{
202	1.25k	const UINT32 originalSize = context->OrgByteCount[i];
203	1.25k	const UINT32 planeSize = context->PlaneByteCount[i];
204
205	1.25k	if (rleSize < planeSize)
206	0	return FALSE;
207
208	1.25k	if (planeSize == 0)
209	791	{
210	791	if (context->priv->PlaneBuffersLength < originalSize)
211	0	return FALSE;
212
213	791	FillMemory(context->priv->PlaneBuffers[i], originalSize, 0xFF);
214	791	}
215	465	else if (planeSize < originalSize)
216	253	{
217	253	if (!nsc_rle_decode(rle, rleSize, context->priv->PlaneBuffers[i],
218	253	context->priv->PlaneBuffersLength, originalSize))
219	164	return FALSE;
220	253	}
221	212	else
222	212	{
223	212	if (context->priv->PlaneBuffersLength < originalSize)
224	0	return FALSE;
225
226	212	if (rleSize < originalSize)
227	0	return FALSE;
228
229	212	CopyMemory(context->priv->PlaneBuffers[i], rle, originalSize);
230	212	}
231
232	1.09k	rle += planeSize;
233	1.09k	rleSize -= planeSize;
234	1.09k	}
235
236	261	return TRUE;
237	425	}
238
239		static BOOL nsc_stream_initialize(NSC_CONTEXT* context, wStream* s)
240	605	{
241	605	WINPR_ASSERT(context);
242	605	WINPR_ASSERT(context->priv);
243	605	if (!Stream_CheckAndLogRequiredLengthWLog(context->priv->log, s, 20))
244	114	return FALSE;
245
246	491	size_t total = 0;
247	2.45k	for (size_t i = 0; i < 4; i++)
248	1.96k	{
249	1.96k	Stream_Read_UINT32(s, context->PlaneByteCount[i]);
250	1.96k	total += context->PlaneByteCount[i];
251	1.96k	}
252
253	491	Stream_Read_UINT8(s, context->ColorLossLevel); /* ColorLossLevel (1 byte) */
254	491	if ((context->ColorLossLevel < 1) \|\| (context->ColorLossLevel > 7))
255	56	{
256	56	WLog_Print(context->priv->log, WLOG_ERROR,
257	56	"ColorLossLevel=%" PRIu8 " out of range, must be [1,7] inclusive",
258	56	context->ColorLossLevel);
259	56	return FALSE;
260	56	}
261	435	Stream_Read_UINT8(s, context->ChromaSubsamplingLevel); /* ChromaSubsamplingLevel (1 byte) */
262	435	Stream_Seek(s, 2); /* Reserved (2 bytes) */
263	435	context->Planes = Stream_Pointer(s);
264	435	context->PlanesSize = total;
265	435	return Stream_CheckAndLogRequiredLengthWLog(context->priv->log, s, total);
266	491	}
267
268		static BOOL nsc_context_initialize(NSC_CONTEXT* context, wStream* s)
269	605	{
270	605	if (!nsc_stream_initialize(context, s))
271	180	return FALSE;
272
273	425	const size_t blength = 4ull * context->width * context->height;
274
275	425	if (!context->BitmapData \|\| (blength > context->BitmapDataLength))
276	417	{
277	417	void* tmp = winpr_aligned_recalloc(context->BitmapData, blength + 16, sizeof(BYTE), 32);
278
279	417	if (!tmp)
280	0	return FALSE;
281
282	417	context->BitmapData = tmp;
283	417	context->BitmapDataLength = blength;
284	417	}
285
286	425	const UINT32 tempWidth = ROUND_UP_TO(context->width, 8);
287	425	const UINT32 tempHeight = ROUND_UP_TO(context->height, 2);
288		/* The maximum length a decoded plane can reach in all cases */
289	425	const size_t plength = 1ull * tempWidth * tempHeight;
290
291	425	if (plength > context->priv->PlaneBuffersLength)
292	357	{
293	1.78k	for (size_t i = 0; i < 4; i++)
294	1.42k	{
295	1.42k	void* tmp = (BYTE*)winpr_aligned_recalloc(context->priv->PlaneBuffers[i], plength,
296	1.42k	sizeof(BYTE), 32);
297
298	1.42k	if (!tmp)
299	0	return FALSE;
300
301	1.42k	context->priv->PlaneBuffers[i] = tmp;
302	1.42k	}
303
304	357	context->priv->PlaneBuffersLength = plength;
305	357	}
306
307	2.12k	for (size_t i = 0; i < 4; i++)
308	1.70k	context->OrgByteCount[i] = context->width * context->height;
309
310	425	if (context->ChromaSubsamplingLevel)
311	299	{
312	299	context->OrgByteCount[0] = tempWidth * context->height;
313	299	context->OrgByteCount[1] = (tempWidth >> 1) * (tempHeight >> 1);
314	299	context->OrgByteCount[2] = context->OrgByteCount[1];
315	299	}
316
317	425	return TRUE;
318	425	}
319
320		static void nsc_profiler_print(NSC_CONTEXT_PRIV* priv)
321	17.1k	{
322	17.1k	WINPR_UNUSED(priv);
323
324	17.1k	PROFILER_PRINT_HEADER
325	17.1k	PROFILER_PRINT(priv->prof_nsc_rle_decompress_data)
326	17.1k	PROFILER_PRINT(priv->prof_nsc_decode)
327	17.1k	PROFILER_PRINT(priv->prof_nsc_rle_compress_data)
328	17.1k	PROFILER_PRINT(priv->prof_nsc_encode)
329	17.1k	PROFILER_PRINT_FOOTER
330	17.1k	}
331
332		BOOL nsc_context_reset(NSC_CONTEXT* context, UINT32 width, UINT32 height)
333	0	{
334	0	if (!context)
335	0	return FALSE;
336
337	0	if ((width > UINT16_MAX) \|\| (height > UINT16_MAX))
338	0	return FALSE;
339
340	0	context->width = (UINT16)width;
341	0	context->height = (UINT16)height;
342	0	return TRUE;
343	0	}
344
345		NSC_CONTEXT* nsc_context_new(void)
346	17.1k	{
347	17.1k	NSC_CONTEXT* context = (NSC_CONTEXT*)winpr_aligned_calloc(1, sizeof(NSC_CONTEXT), 32);
348
349	17.1k	if (!context)
350	0	return NULL;
351
352	17.1k	context->priv = (NSC_CONTEXT_PRIV*)winpr_aligned_calloc(1, sizeof(NSC_CONTEXT_PRIV), 32);
353
354	17.1k	if (!context->priv)
355	0	goto error;
356
357	17.1k	context->priv->log = WLog_Get("com.freerdp.codec.nsc");
358	17.1k	WLog_OpenAppender(context->priv->log);
359	17.1k	context->BitmapData = NULL;
360	17.1k	context->decode = nsc_decode;
361	17.1k	context->encode = nsc_encode;
362
363	17.1k	PROFILER_CREATE(context->priv->prof_nsc_rle_decompress_data, "nsc_rle_decompress_data")
364	17.1k	PROFILER_CREATE(context->priv->prof_nsc_decode, "nsc_decode")
365	17.1k	PROFILER_CREATE(context->priv->prof_nsc_rle_compress_data, "nsc_rle_compress_data")
366	17.1k	PROFILER_CREATE(context->priv->prof_nsc_encode, "nsc_encode")
367		/* Default encoding parameters */
368	17.1k	context->ColorLossLevel = 3;
369	17.1k	context->ChromaSubsamplingLevel = 1;
370		/* init optimized methods */
371	17.1k	NSC_INIT_SIMD(context);
372	17.1k	return context;
373	0	error:
374	0	WINPR_PRAGMA_DIAG_PUSH
375	0	WINPR_PRAGMA_DIAG_IGNORED_MISMATCHED_DEALLOC
376	0	nsc_context_free(context);
377	0	WINPR_PRAGMA_DIAG_POP
378	0	return NULL;
379	17.1k	}
380
381		void nsc_context_free(NSC_CONTEXT* context)
382	17.1k	{
383	17.1k	if (!context)
384	0	return;
385
386	17.1k	if (context->priv)
387	17.1k	{
388	102k	for (size_t i = 0; i < 5; i++)
389	85.7k	winpr_aligned_free(context->priv->PlaneBuffers[i]);
390
391	17.1k	nsc_profiler_print(context->priv);
392	17.1k	PROFILER_FREE(context->priv->prof_nsc_rle_decompress_data)
393	17.1k	PROFILER_FREE(context->priv->prof_nsc_decode)
394	17.1k	PROFILER_FREE(context->priv->prof_nsc_rle_compress_data)
395	17.1k	PROFILER_FREE(context->priv->prof_nsc_encode)
396	17.1k	winpr_aligned_free(context->priv);
397	17.1k	}
398
399	17.1k	winpr_aligned_free(context->BitmapData);
400	17.1k	winpr_aligned_free(context);
401	17.1k	}
402
403		#if defined(WITH_FREERDP_DEPRECATED)
404		BOOL nsc_context_set_pixel_format(NSC_CONTEXT* context, UINT32 pixel_format)
405		{
406		return nsc_context_set_parameters(context, NSC_COLOR_FORMAT, pixel_format);
407		}
408		#endif
409
410		BOOL nsc_context_set_parameters(NSC_CONTEXT* context, NSC_PARAMETER what, UINT32 value)
411	34.2k	{
412	34.2k	if (!context)
413	0	return FALSE;
414
415	34.2k	switch (what)
416	34.2k	{
417	0	case NSC_COLOR_LOSS_LEVEL:
418	0	context->ColorLossLevel = value;
419	0	break;
420	0	case NSC_ALLOW_SUBSAMPLING:
421	0	context->ChromaSubsamplingLevel = value;
422	0	break;
423	0	case NSC_DYNAMIC_COLOR_FIDELITY:
424	0	context->DynamicColorFidelity = value != 0;
425	0	break;
426	34.2k	case NSC_COLOR_FORMAT:
427	34.2k	context->format = value;
428	34.2k	break;
429	0	default:
430	0	return FALSE;
431	34.2k	}
432	34.2k	return TRUE;
433	34.2k	}
434
435		BOOL nsc_process_message(NSC_CONTEXT* context, UINT16 bpp, UINT32 width, UINT32 height,
436		const BYTE* WINPR_RESTRICT data, UINT32 length,
437		BYTE* WINPR_RESTRICT pDstData, UINT32 DstFormat, UINT32 nDstStride,
438		UINT32 nXDst, UINT32 nYDst, UINT32 nWidth, UINT32 nHeight, UINT32 flip)
439	605	{
440	605	wStream* s = NULL;
441	605	wStream sbuffer = { 0 };
442	605	BOOL ret = 0;
443	605	if (!context \|\| !data \|\| !pDstData)
444	0	return FALSE;
445
446	605	s = Stream_StaticConstInit(&sbuffer, data, length);
447
448	605	if (!s)
449	0	return FALSE;
450
451	605	if (nDstStride == 0)
452	605	nDstStride = nWidth * FreeRDPGetBytesPerPixel(DstFormat);
453
454	605	switch (bpp)
455	605	{
456	605	case 32:
457	605	context->format = PIXEL_FORMAT_BGRA32;
458	605	break;
459
460	0	case 24:
461	0	context->format = PIXEL_FORMAT_BGR24;
462	0	break;
463
464	0	case 16:
465	0	context->format = PIXEL_FORMAT_BGR16;
466	0	break;
467
468	0	case 8:
469	0	context->format = PIXEL_FORMAT_RGB8;
470	0	break;
471
472	0	case 4:
473	0	context->format = PIXEL_FORMAT_A4;
474	0	break;
475
476	0	default:
477	0	return FALSE;
478	605	}
479
480	605	context->width = width;
481	605	context->height = height;
482	605	ret = nsc_context_initialize(context, s);
483
484	605	if (!ret)
485	180	return FALSE;
486
487		/* RLE decode */
488	425	{
489	425	BOOL rc = 0;
490	425	PROFILER_ENTER(context->priv->prof_nsc_rle_decompress_data)
491	425	rc = nsc_rle_decompress_data(context);
492	425	PROFILER_EXIT(context->priv->prof_nsc_rle_decompress_data)
493
494	425	if (!rc)
495	164	return FALSE;
496	425	}
497		/* Colorloss recover, Chroma supersample and AYCoCg to ARGB Conversion in one step */
498	261	{
499	261	BOOL rc = 0;
500	261	PROFILER_ENTER(context->priv->prof_nsc_decode)
501	261	rc = context->decode(context);
502	261	PROFILER_EXIT(context->priv->prof_nsc_decode)
503
504	261	if (!rc)
505	0	return FALSE;
506	261	}
507
508	261	if (!freerdp_image_copy(pDstData, DstFormat, nDstStride, nXDst, nYDst, width, height,
509	261	context->BitmapData, PIXEL_FORMAT_BGRA32, 0, 0, 0, NULL, flip))
510	0	return FALSE;
511
512	261	return TRUE;
513	261	}