diff options
Diffstat (limited to '')
| -rw-r--r-- | libfreerdp/codec/nsc.c | 502 |
1 files changed, 502 insertions, 0 deletions
diff --git a/libfreerdp/codec/nsc.c b/libfreerdp/codec/nsc.c new file mode 100644 index 0000000..049b541 --- /dev/null +++ b/libfreerdp/codec/nsc.c @@ -0,0 +1,502 @@ +/** + * 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)(*coplane << shift); + INT16 cg_val = (INT16)(INT8)(*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* in, size_t inSize, BYTE* 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) + 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; + } + + 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) */ + 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 = context->width * context->height * 4ull; + + 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: + nsc_context_free(context); + 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* data, UINT32 length, BYTE* 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; +} |