1218 lines
32 KiB
C
1218 lines
32 KiB
C
/**
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* FreeRDP: A Remote Desktop Protocol Implementation
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* ClearCodec Bitmap Compression
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*
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* Copyright 2014 Marc-Andre Moreau <marcandre.moreau@gmail.com>
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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 <winpr/crt.h>
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#include <winpr/print.h>
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#include <winpr/bitstream.h>
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#include <freerdp/codec/color.h>
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#include <freerdp/codec/clear.h>
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#include <freerdp/log.h>
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#define TAG FREERDP_TAG("codec.clear")
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#define CLEARCODEC_FLAG_GLYPH_INDEX 0x01
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#define CLEARCODEC_FLAG_GLYPH_HIT 0x02
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#define CLEARCODEC_FLAG_CACHE_RESET 0x04
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#define CLEARCODEC_VBAR_SIZE 32768
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#define CLEARCODEC_VBAR_SHORT_SIZE 16384
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struct _CLEAR_GLYPH_ENTRY
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{
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UINT32 size;
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UINT32 count;
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UINT32* pixels;
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};
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typedef struct _CLEAR_GLYPH_ENTRY CLEAR_GLYPH_ENTRY;
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struct _CLEAR_VBAR_ENTRY
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{
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UINT32 size;
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UINT32 count;
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BYTE* pixels;
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};
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typedef struct _CLEAR_VBAR_ENTRY CLEAR_VBAR_ENTRY;
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struct _CLEAR_CONTEXT
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{
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BOOL Compressor;
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NSC_CONTEXT* nsc;
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UINT32 seqNumber;
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BYTE* TempBuffer;
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UINT32 TempSize;
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UINT32 nTempStep;
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UINT32 TempFormat;
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UINT32 format;
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CLEAR_GLYPH_ENTRY GlyphCache[4000];
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UINT32 VBarStorageCursor;
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CLEAR_VBAR_ENTRY VBarStorage[CLEARCODEC_VBAR_SIZE];
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UINT32 ShortVBarStorageCursor;
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CLEAR_VBAR_ENTRY ShortVBarStorage[CLEARCODEC_VBAR_SHORT_SIZE];
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};
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static const UINT32 CLEAR_LOG2_FLOOR[256] = {
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0, 0, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
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5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
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6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
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6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
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7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
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7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
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7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
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7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7
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};
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static const BYTE CLEAR_8BIT_MASKS[9] = { 0x00, 0x01, 0x03, 0x07, 0x0F, 0x1F, 0x3F, 0x7F, 0xFF };
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static BOOL convert_color(BYTE* dst, UINT32 nDstStep, UINT32 DstFormat, UINT32 nXDst, UINT32 nYDst,
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UINT32 nWidth, UINT32 nHeight, const BYTE* src, UINT32 nSrcStep,
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UINT32 SrcFormat, UINT32 nDstWidth, UINT32 nDstHeight,
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const gdiPalette* palette)
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{
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if (nWidth + nXDst > nDstWidth)
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nWidth = nDstWidth - nXDst;
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if (nHeight + nYDst > nDstHeight)
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nHeight = nDstHeight - nYDst;
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return freerdp_image_copy(dst, DstFormat, nDstStep, nXDst, nYDst, nWidth, nHeight, src,
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SrcFormat, nSrcStep, 0, 0, palette, 0);
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}
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static BOOL clear_decompress_nscodec(NSC_CONTEXT* nsc, UINT32 width, UINT32 height, wStream* s,
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UINT32 bitmapDataByteCount, BYTE* pDstData, UINT32 DstFormat,
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UINT32 nDstStep, UINT32 nXDstRel, UINT32 nYDstRel)
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{
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BOOL rc;
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if (Stream_GetRemainingLength(s) < bitmapDataByteCount)
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{
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WLog_ERR(TAG, "stream short %" PRIuz " [%" PRIu32 " expected]",
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Stream_GetRemainingLength(s), bitmapDataByteCount);
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return FALSE;
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}
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rc = nsc_process_message(nsc, 32, width, height, Stream_Pointer(s), bitmapDataByteCount,
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pDstData, DstFormat, nDstStep, nXDstRel, nYDstRel, width, height,
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FREERDP_FLIP_NONE);
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Stream_Seek(s, bitmapDataByteCount);
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return rc;
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}
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static BOOL clear_decompress_subcode_rlex(wStream* s, UINT32 bitmapDataByteCount, UINT32 width,
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UINT32 height, BYTE* pDstData, UINT32 DstFormat,
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UINT32 nDstStep, UINT32 nXDstRel, UINT32 nYDstRel,
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UINT32 nDstWidth, UINT32 nDstHeight)
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{
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UINT32 x = 0, y = 0;
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UINT32 i;
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UINT32 pixelCount;
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UINT32 bitmapDataOffset;
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size_t pixelIndex;
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UINT32 numBits;
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BYTE startIndex;
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BYTE stopIndex;
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BYTE suiteIndex;
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BYTE suiteDepth;
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BYTE paletteCount;
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UINT32 palette[128] = { 0 };
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if (Stream_GetRemainingLength(s) < bitmapDataByteCount)
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{
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WLog_ERR(TAG, "stream short %" PRIuz " [%" PRIu32 " expected]",
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Stream_GetRemainingLength(s), bitmapDataByteCount);
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return FALSE;
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}
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if (Stream_GetRemainingLength(s) < 1)
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return FALSE;
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Stream_Read_UINT8(s, paletteCount);
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bitmapDataOffset = 1 + (paletteCount * 3);
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if ((paletteCount > 127) || (paletteCount < 1))
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{
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WLog_ERR(TAG, "paletteCount %" PRIu8 "", paletteCount);
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return FALSE;
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}
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if (Stream_GetRemainingLength(s) < 3ULL * paletteCount)
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return FALSE;
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for (i = 0; i < paletteCount; i++)
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{
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BYTE r, g, b;
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Stream_Read_UINT8(s, b);
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Stream_Read_UINT8(s, g);
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Stream_Read_UINT8(s, r);
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palette[i] = FreeRDPGetColor(DstFormat, r, g, b, 0xFF);
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}
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pixelIndex = 0;
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pixelCount = width * height;
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numBits = CLEAR_LOG2_FLOOR[paletteCount - 1] + 1;
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while (bitmapDataOffset < bitmapDataByteCount)
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{
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UINT32 tmp;
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UINT32 color;
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UINT32 runLengthFactor;
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if (Stream_GetRemainingLength(s) < 2)
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{
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WLog_ERR(TAG, "stream short %" PRIuz " [2 expected]", Stream_GetRemainingLength(s));
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return FALSE;
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}
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Stream_Read_UINT8(s, tmp);
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Stream_Read_UINT8(s, runLengthFactor);
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bitmapDataOffset += 2;
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suiteDepth = (tmp >> numBits) & CLEAR_8BIT_MASKS[(8 - numBits)];
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stopIndex = tmp & CLEAR_8BIT_MASKS[numBits];
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startIndex = stopIndex - suiteDepth;
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if (runLengthFactor >= 0xFF)
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{
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if (Stream_GetRemainingLength(s) < 2)
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{
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WLog_ERR(TAG, "stream short %" PRIuz " [2 expected]", Stream_GetRemainingLength(s));
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return FALSE;
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}
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Stream_Read_UINT16(s, runLengthFactor);
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bitmapDataOffset += 2;
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if (runLengthFactor >= 0xFFFF)
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{
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if (Stream_GetRemainingLength(s) < 4)
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{
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WLog_ERR(TAG, "stream short %" PRIuz " [4 expected]",
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Stream_GetRemainingLength(s));
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return FALSE;
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}
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Stream_Read_UINT32(s, runLengthFactor);
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bitmapDataOffset += 4;
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}
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}
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if (startIndex >= paletteCount)
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{
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WLog_ERR(TAG, "startIndex %" PRIu8 " > paletteCount %" PRIu8 "]", startIndex,
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paletteCount);
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return FALSE;
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}
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if (stopIndex >= paletteCount)
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{
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WLog_ERR(TAG, "stopIndex %" PRIu8 " > paletteCount %" PRIu8 "]", stopIndex,
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paletteCount);
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return FALSE;
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}
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suiteIndex = startIndex;
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if (suiteIndex > 127)
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{
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WLog_ERR(TAG, "suiteIndex %" PRIu8 " > 127]", suiteIndex);
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return FALSE;
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}
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color = palette[suiteIndex];
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if ((pixelIndex + runLengthFactor) > pixelCount)
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{
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WLog_ERR(TAG,
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"pixelIndex %" PRIu32 " + runLengthFactor %" PRIu32 " > pixelCount %" PRIu32
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"",
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pixelIndex, runLengthFactor, pixelCount);
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return FALSE;
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}
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for (i = 0; i < runLengthFactor; i++)
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{
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BYTE* pTmpData =
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&pDstData[(nXDstRel + x) * GetBytesPerPixel(DstFormat) + (nYDstRel + y) * nDstStep];
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if ((nXDstRel + x < nDstWidth) && (nYDstRel + y < nDstHeight))
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WriteColor(pTmpData, DstFormat, color);
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if (++x >= width)
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{
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y++;
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x = 0;
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}
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}
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pixelIndex += runLengthFactor;
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if ((pixelIndex + (suiteDepth + 1)) > pixelCount)
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{
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WLog_ERR(TAG,
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"pixelIndex %" PRIu32 " + suiteDepth %" PRIu8 " + 1 > pixelCount %" PRIu32 "",
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pixelIndex, suiteDepth, pixelCount);
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return FALSE;
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}
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for (i = 0; i <= suiteDepth; i++)
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{
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BYTE* pTmpData =
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&pDstData[(nXDstRel + x) * GetBytesPerPixel(DstFormat) + (nYDstRel + y) * nDstStep];
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UINT32 color = palette[suiteIndex];
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if (suiteIndex > 127)
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{
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WLog_ERR(TAG, "suiteIndex %" PRIu8 " > 127", suiteIndex);
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return FALSE;
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}
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suiteIndex++;
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if ((nXDstRel + x < nDstWidth) && (nYDstRel + y < nDstHeight))
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WriteColor(pTmpData, DstFormat, color);
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if (++x >= width)
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{
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y++;
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x = 0;
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}
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}
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pixelIndex += (suiteDepth + 1);
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}
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if (pixelIndex != pixelCount)
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{
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WLog_ERR(TAG, "pixelIndex %" PRIdz " != pixelCount %" PRIu32 "", pixelIndex, pixelCount);
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return FALSE;
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}
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return TRUE;
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}
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static BOOL clear_resize_buffer(CLEAR_CONTEXT* clear, UINT32 width, UINT32 height)
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{
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UINT32 size;
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if (!clear)
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return FALSE;
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size = ((width + 16) * (height + 16) * GetBytesPerPixel(clear->format));
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if (size > clear->TempSize)
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{
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BYTE* tmp = (BYTE*)realloc(clear->TempBuffer, size);
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if (!tmp)
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{
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WLog_ERR(TAG, "clear->TempBuffer realloc failed for %" PRIu32 " bytes", size);
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return FALSE;
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}
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clear->TempSize = size;
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clear->TempBuffer = tmp;
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}
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return TRUE;
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}
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static BOOL clear_decompress_residual_data(CLEAR_CONTEXT* clear, wStream* s,
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UINT32 residualByteCount, UINT32 nWidth, UINT32 nHeight,
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BYTE* pDstData, UINT32 DstFormat, UINT32 nDstStep,
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UINT32 nXDst, UINT32 nYDst, UINT32 nDstWidth,
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UINT32 nDstHeight, const gdiPalette* palette)
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{
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UINT32 i;
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UINT32 nSrcStep;
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UINT32 suboffset;
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BYTE* dstBuffer;
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UINT32 pixelIndex;
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UINT32 pixelCount;
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if (Stream_GetRemainingLength(s) < residualByteCount)
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{
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WLog_ERR(TAG, "stream short %" PRIuz " [%" PRIu32 " expected]",
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Stream_GetRemainingLength(s), residualByteCount);
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return FALSE;
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}
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suboffset = 0;
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pixelIndex = 0;
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pixelCount = nWidth * nHeight;
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if (!clear_resize_buffer(clear, nWidth, nHeight))
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return FALSE;
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dstBuffer = clear->TempBuffer;
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while (suboffset < residualByteCount)
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{
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BYTE r, g, b;
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UINT32 runLengthFactor;
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UINT32 color;
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if (Stream_GetRemainingLength(s) < 4)
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{
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WLog_ERR(TAG, "stream short %" PRIuz " [4 expected]", Stream_GetRemainingLength(s));
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return FALSE;
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}
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Stream_Read_UINT8(s, b);
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Stream_Read_UINT8(s, g);
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Stream_Read_UINT8(s, r);
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Stream_Read_UINT8(s, runLengthFactor);
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suboffset += 4;
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color = FreeRDPGetColor(clear->format, r, g, b, 0xFF);
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if (runLengthFactor >= 0xFF)
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{
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if (Stream_GetRemainingLength(s) < 2)
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{
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WLog_ERR(TAG, "stream short %" PRIuz " [2 expected]", Stream_GetRemainingLength(s));
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return FALSE;
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}
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Stream_Read_UINT16(s, runLengthFactor);
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suboffset += 2;
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if (runLengthFactor >= 0xFFFF)
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{
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if (Stream_GetRemainingLength(s) < 4)
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{
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WLog_ERR(TAG, "stream short %" PRIuz " [4 expected]",
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Stream_GetRemainingLength(s));
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return FALSE;
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}
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Stream_Read_UINT32(s, runLengthFactor);
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suboffset += 4;
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}
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}
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if ((pixelIndex + runLengthFactor) > pixelCount)
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{
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WLog_ERR(TAG,
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"pixelIndex %" PRIu32 " + runLengthFactor %" PRIu32 " > pixelCount %" PRIu32
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"",
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pixelIndex, runLengthFactor, pixelCount);
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return FALSE;
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}
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for (i = 0; i < runLengthFactor; i++)
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{
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WriteColor(dstBuffer, clear->format, color);
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dstBuffer += GetBytesPerPixel(clear->format);
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}
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pixelIndex += runLengthFactor;
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}
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nSrcStep = nWidth * GetBytesPerPixel(clear->format);
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if (pixelIndex != pixelCount)
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{
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WLog_ERR(TAG, "pixelIndex %" PRIu32 " != pixelCount %" PRIu32 "", pixelIndex, pixelCount);
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return FALSE;
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}
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return convert_color(pDstData, nDstStep, DstFormat, nXDst, nYDst, nWidth, nHeight,
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clear->TempBuffer, nSrcStep, clear->format, nDstWidth, nDstHeight,
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palette);
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}
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static BOOL clear_decompress_subcodecs_data(CLEAR_CONTEXT* clear, wStream* s,
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UINT32 subcodecByteCount, UINT32 nWidth, UINT32 nHeight,
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BYTE* pDstData, UINT32 DstFormat, UINT32 nDstStep,
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UINT32 nXDst, UINT32 nYDst, UINT32 nDstWidth,
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UINT32 nDstHeight, const gdiPalette* palette)
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{
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UINT16 xStart;
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UINT16 yStart;
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UINT16 width;
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UINT16 height;
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UINT32 bitmapDataByteCount;
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BYTE subcodecId;
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UINT32 suboffset;
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if (Stream_GetRemainingLength(s) < subcodecByteCount)
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{
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WLog_ERR(TAG, "stream short %" PRIuz " [%" PRIu32 " expected]",
|
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Stream_GetRemainingLength(s), subcodecByteCount);
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return FALSE;
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}
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|
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suboffset = 0;
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|
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while (suboffset < subcodecByteCount)
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{
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UINT32 nXDstRel;
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UINT32 nYDstRel;
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if (Stream_GetRemainingLength(s) < 13)
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{
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WLog_ERR(TAG, "stream short %" PRIuz " [13 expected]", Stream_GetRemainingLength(s));
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return FALSE;
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}
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Stream_Read_UINT16(s, xStart);
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Stream_Read_UINT16(s, yStart);
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Stream_Read_UINT16(s, width);
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Stream_Read_UINT16(s, height);
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Stream_Read_UINT32(s, bitmapDataByteCount);
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Stream_Read_UINT8(s, subcodecId);
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suboffset += 13;
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if (Stream_GetRemainingLength(s) < bitmapDataByteCount)
|
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{
|
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WLog_ERR(TAG, "stream short %" PRIuz " [%" PRIu32 " expected]",
|
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Stream_GetRemainingLength(s), bitmapDataByteCount);
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return FALSE;
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}
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|
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nXDstRel = nXDst + xStart;
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nYDstRel = nYDst + yStart;
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|
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if (width > nWidth)
|
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{
|
|
WLog_ERR(TAG, "width %" PRIu16 " > nWidth %" PRIu32 "", width, nWidth);
|
|
return FALSE;
|
|
}
|
|
|
|
if (height > nHeight)
|
|
{
|
|
WLog_ERR(TAG, "height %" PRIu16 " > nHeight %" PRIu32 "", height, nHeight);
|
|
return FALSE;
|
|
}
|
|
|
|
if (!clear_resize_buffer(clear, width, height))
|
|
return FALSE;
|
|
|
|
switch (subcodecId)
|
|
{
|
|
case 0: /* Uncompressed */
|
|
{
|
|
UINT32 nSrcStep = width * GetBytesPerPixel(PIXEL_FORMAT_BGR24);
|
|
UINT32 nSrcSize = nSrcStep * height;
|
|
|
|
if (bitmapDataByteCount != nSrcSize)
|
|
{
|
|
WLog_ERR(TAG, "bitmapDataByteCount %" PRIu32 " != nSrcSize %" PRIu32 "",
|
|
bitmapDataByteCount, nSrcSize);
|
|
return FALSE;
|
|
}
|
|
|
|
if (!convert_color(pDstData, nDstStep, DstFormat, nXDstRel, nYDstRel, width, height,
|
|
Stream_Pointer(s), nSrcStep, PIXEL_FORMAT_BGR24, nDstWidth,
|
|
nDstHeight, palette))
|
|
return FALSE;
|
|
|
|
Stream_Seek(s, bitmapDataByteCount);
|
|
}
|
|
break;
|
|
|
|
case 1: /* NSCodec */
|
|
if (!clear_decompress_nscodec(clear->nsc, width, height, s, bitmapDataByteCount,
|
|
pDstData, DstFormat, nDstStep, nXDstRel, nYDstRel))
|
|
return FALSE;
|
|
|
|
break;
|
|
|
|
case 2: /* CLEARCODEC_SUBCODEC_RLEX */
|
|
if (!clear_decompress_subcode_rlex(s, bitmapDataByteCount, width, height, pDstData,
|
|
DstFormat, nDstStep, nXDstRel, nYDstRel,
|
|
nDstWidth, nDstHeight))
|
|
return FALSE;
|
|
|
|
break;
|
|
|
|
default:
|
|
WLog_ERR(TAG, "Unknown subcodec ID %" PRIu8 "", subcodecId);
|
|
return FALSE;
|
|
}
|
|
|
|
suboffset += bitmapDataByteCount;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static BOOL resize_vbar_entry(CLEAR_CONTEXT* clear, CLEAR_VBAR_ENTRY* vBarEntry)
|
|
{
|
|
if (vBarEntry->count > vBarEntry->size)
|
|
{
|
|
const UINT32 bpp = GetBytesPerPixel(clear->format);
|
|
const UINT32 oldPos = vBarEntry->size * bpp;
|
|
const UINT32 diffSize = (vBarEntry->count - vBarEntry->size) * bpp;
|
|
BYTE* tmp;
|
|
vBarEntry->size = vBarEntry->count;
|
|
tmp = (BYTE*)realloc(vBarEntry->pixels, vBarEntry->count * bpp);
|
|
|
|
if (!tmp)
|
|
{
|
|
WLog_ERR(TAG, "vBarEntry->pixels realloc %" PRIu32 " failed", vBarEntry->count * bpp);
|
|
return FALSE;
|
|
}
|
|
|
|
memset(&tmp[oldPos], 0, diffSize);
|
|
vBarEntry->pixels = tmp;
|
|
}
|
|
|
|
if (!vBarEntry->pixels && vBarEntry->size)
|
|
{
|
|
WLog_ERR(TAG, "vBarEntry->pixels is NULL but vBarEntry->size is %" PRIu32 "",
|
|
vBarEntry->size);
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static BOOL clear_decompress_bands_data(CLEAR_CONTEXT* clear, wStream* s, UINT32 bandsByteCount,
|
|
UINT32 nWidth, UINT32 nHeight, BYTE* pDstData,
|
|
UINT32 DstFormat, UINT32 nDstStep, UINT32 nXDst,
|
|
UINT32 nYDst)
|
|
{
|
|
UINT32 i, y;
|
|
UINT32 count;
|
|
UINT32 suboffset;
|
|
UINT32 nXDstRel;
|
|
UINT32 nYDstRel;
|
|
|
|
if (Stream_GetRemainingLength(s) < bandsByteCount)
|
|
{
|
|
WLog_ERR(TAG, "stream short %" PRIuz " [11 expected]", Stream_GetRemainingLength(s));
|
|
return FALSE;
|
|
}
|
|
|
|
suboffset = 0;
|
|
|
|
while (suboffset < bandsByteCount)
|
|
{
|
|
BYTE r, g, b;
|
|
UINT16 xStart;
|
|
UINT16 xEnd;
|
|
UINT16 yStart;
|
|
UINT16 yEnd;
|
|
UINT32 colorBkg;
|
|
UINT16 vBarHeader;
|
|
UINT16 vBarYOn;
|
|
UINT16 vBarYOff;
|
|
UINT32 vBarCount;
|
|
UINT32 vBarPixelCount;
|
|
UINT32 vBarShortPixelCount;
|
|
|
|
if (Stream_GetRemainingLength(s) < 11)
|
|
{
|
|
WLog_ERR(TAG, "stream short %" PRIuz " [11 expected]", Stream_GetRemainingLength(s));
|
|
return FALSE;
|
|
}
|
|
|
|
Stream_Read_UINT16(s, xStart);
|
|
Stream_Read_UINT16(s, xEnd);
|
|
Stream_Read_UINT16(s, yStart);
|
|
Stream_Read_UINT16(s, yEnd);
|
|
Stream_Read_UINT8(s, b);
|
|
Stream_Read_UINT8(s, g);
|
|
Stream_Read_UINT8(s, r);
|
|
suboffset += 11;
|
|
colorBkg = FreeRDPGetColor(clear->format, r, g, b, 0xFF);
|
|
|
|
if (xEnd < xStart)
|
|
{
|
|
WLog_ERR(TAG, "xEnd %" PRIu16 " < xStart %" PRIu16 "", xEnd, xStart);
|
|
return FALSE;
|
|
}
|
|
|
|
if (yEnd < yStart)
|
|
{
|
|
WLog_ERR(TAG, "yEnd %" PRIu16 " < yStart %" PRIu16 "", yEnd, yStart);
|
|
return FALSE;
|
|
}
|
|
|
|
vBarCount = (xEnd - xStart) + 1;
|
|
|
|
for (i = 0; i < vBarCount; i++)
|
|
{
|
|
UINT32 vBarHeight;
|
|
CLEAR_VBAR_ENTRY* vBarEntry = NULL;
|
|
CLEAR_VBAR_ENTRY* vBarShortEntry;
|
|
BOOL vBarUpdate = FALSE;
|
|
const BYTE* pSrcPixel;
|
|
|
|
if (Stream_GetRemainingLength(s) < 2)
|
|
{
|
|
WLog_ERR(TAG, "stream short %" PRIuz " [2 expected]", Stream_GetRemainingLength(s));
|
|
return FALSE;
|
|
}
|
|
|
|
Stream_Read_UINT16(s, vBarHeader);
|
|
suboffset += 2;
|
|
vBarHeight = (yEnd - yStart + 1);
|
|
|
|
if (vBarHeight > 52)
|
|
{
|
|
WLog_ERR(TAG, "vBarHeight (%" PRIu32 ") > 52", vBarHeight);
|
|
return FALSE;
|
|
}
|
|
|
|
if ((vBarHeader & 0xC000) == 0x4000) /* SHORT_VBAR_CACHE_HIT */
|
|
{
|
|
const UINT16 vBarIndex = (vBarHeader & 0x3FFF);
|
|
vBarShortEntry = &(clear->ShortVBarStorage[vBarIndex]);
|
|
|
|
if (!vBarShortEntry)
|
|
{
|
|
WLog_ERR(TAG, "missing vBarShortEntry %" PRIu16 "", vBarIndex);
|
|
return FALSE;
|
|
}
|
|
|
|
if (Stream_GetRemainingLength(s) < 1)
|
|
{
|
|
WLog_ERR(TAG, "stream short %" PRIuz " [1 expected]",
|
|
Stream_GetRemainingLength(s));
|
|
return FALSE;
|
|
}
|
|
|
|
Stream_Read_UINT8(s, vBarYOn);
|
|
suboffset += 1;
|
|
vBarShortPixelCount = vBarShortEntry->count;
|
|
vBarUpdate = TRUE;
|
|
}
|
|
else if ((vBarHeader & 0xC000) == 0x0000) /* SHORT_VBAR_CACHE_MISS */
|
|
{
|
|
vBarYOn = (vBarHeader & 0xFF);
|
|
vBarYOff = ((vBarHeader >> 8) & 0x3F);
|
|
|
|
if (vBarYOff < vBarYOn)
|
|
{
|
|
WLog_ERR(TAG, "vBarYOff %" PRIu16 " < vBarYOn %" PRIu16 "", vBarYOff, vBarYOn);
|
|
return FALSE;
|
|
}
|
|
|
|
vBarShortPixelCount = (vBarYOff - vBarYOn);
|
|
|
|
if (vBarShortPixelCount > 52)
|
|
{
|
|
WLog_ERR(TAG, "vBarShortPixelCount %" PRIu32 " > 52", vBarShortPixelCount);
|
|
return FALSE;
|
|
}
|
|
|
|
if (Stream_GetRemainingLength(s) < (vBarShortPixelCount * 3))
|
|
{
|
|
WLog_ERR(TAG, "stream short %" PRIuz " [%" PRIu32 " expected]",
|
|
Stream_GetRemainingLength(s), (vBarShortPixelCount * 3));
|
|
return FALSE;
|
|
}
|
|
|
|
if (clear->ShortVBarStorageCursor >= CLEARCODEC_VBAR_SHORT_SIZE)
|
|
{
|
|
WLog_ERR(TAG,
|
|
"clear->ShortVBarStorageCursor %" PRIu32
|
|
" >= CLEARCODEC_VBAR_SHORT_SIZE (%" PRIu32 ")",
|
|
clear->ShortVBarStorageCursor, CLEARCODEC_VBAR_SHORT_SIZE);
|
|
return FALSE;
|
|
}
|
|
|
|
vBarShortEntry = &(clear->ShortVBarStorage[clear->ShortVBarStorageCursor]);
|
|
vBarShortEntry->count = vBarShortPixelCount;
|
|
|
|
if (!resize_vbar_entry(clear, vBarShortEntry))
|
|
return FALSE;
|
|
|
|
for (y = 0; y < vBarShortPixelCount; y++)
|
|
{
|
|
BYTE r, g, b;
|
|
BYTE* dstBuffer = &vBarShortEntry->pixels[y * GetBytesPerPixel(clear->format)];
|
|
UINT32 color;
|
|
Stream_Read_UINT8(s, b);
|
|
Stream_Read_UINT8(s, g);
|
|
Stream_Read_UINT8(s, r);
|
|
color = FreeRDPGetColor(clear->format, r, g, b, 0xFF);
|
|
|
|
if (!WriteColor(dstBuffer, clear->format, color))
|
|
return FALSE;
|
|
}
|
|
|
|
suboffset += (vBarShortPixelCount * 3);
|
|
clear->ShortVBarStorageCursor =
|
|
(clear->ShortVBarStorageCursor + 1) % CLEARCODEC_VBAR_SHORT_SIZE;
|
|
vBarUpdate = TRUE;
|
|
}
|
|
else if ((vBarHeader & 0x8000) == 0x8000) /* VBAR_CACHE_HIT */
|
|
{
|
|
const UINT16 vBarIndex = (vBarHeader & 0x7FFF);
|
|
vBarEntry = &(clear->VBarStorage[vBarIndex]);
|
|
|
|
/* If the cache was reset we need to fill in some dummy data. */
|
|
if (vBarEntry->size == 0)
|
|
{
|
|
WLog_WARN(TAG, "Empty cache index %" PRIu16 ", filling dummy data", vBarIndex);
|
|
vBarEntry->count = vBarHeight;
|
|
|
|
if (!resize_vbar_entry(clear, vBarEntry))
|
|
return FALSE;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
WLog_ERR(TAG, "invalid vBarHeader 0x%04" PRIX16 "", vBarHeader);
|
|
return FALSE; /* invalid vBarHeader */
|
|
}
|
|
|
|
if (vBarUpdate)
|
|
{
|
|
UINT32 x;
|
|
BYTE* pSrcPixel = NULL;
|
|
BYTE* dstBuffer;
|
|
|
|
if (clear->VBarStorageCursor >= CLEARCODEC_VBAR_SIZE)
|
|
{
|
|
WLog_ERR(TAG,
|
|
"clear->VBarStorageCursor %" PRIu32 " >= CLEARCODEC_VBAR_SIZE %" PRIu32
|
|
"",
|
|
clear->VBarStorageCursor, CLEARCODEC_VBAR_SIZE);
|
|
return FALSE;
|
|
}
|
|
|
|
vBarEntry = &(clear->VBarStorage[clear->VBarStorageCursor]);
|
|
vBarPixelCount = vBarHeight;
|
|
vBarEntry->count = vBarPixelCount;
|
|
|
|
if (!resize_vbar_entry(clear, vBarEntry))
|
|
return FALSE;
|
|
|
|
dstBuffer = vBarEntry->pixels;
|
|
/* if (y < vBarYOn), use colorBkg */
|
|
y = 0;
|
|
count = vBarYOn;
|
|
|
|
if ((y + count) > vBarPixelCount)
|
|
count = (vBarPixelCount > y) ? (vBarPixelCount - y) : 0;
|
|
|
|
while (count--)
|
|
{
|
|
WriteColor(dstBuffer, clear->format, colorBkg);
|
|
dstBuffer += GetBytesPerPixel(clear->format);
|
|
}
|
|
|
|
/*
|
|
* if ((y >= vBarYOn) && (y < (vBarYOn + vBarShortPixelCount))),
|
|
* use vBarShortPixels at index (y - shortVBarYOn)
|
|
*/
|
|
y = vBarYOn;
|
|
count = vBarShortPixelCount;
|
|
|
|
if ((y + count) > vBarPixelCount)
|
|
count = (vBarPixelCount > y) ? (vBarPixelCount - y) : 0;
|
|
|
|
if (count > 0)
|
|
pSrcPixel =
|
|
&vBarShortEntry->pixels[(y - vBarYOn) * GetBytesPerPixel(clear->format)];
|
|
|
|
for (x = 0; x < count; x++)
|
|
{
|
|
UINT32 color;
|
|
color =
|
|
ReadColor(&pSrcPixel[x * GetBytesPerPixel(clear->format)], clear->format);
|
|
|
|
if (!WriteColor(dstBuffer, clear->format, color))
|
|
return FALSE;
|
|
|
|
dstBuffer += GetBytesPerPixel(clear->format);
|
|
}
|
|
|
|
/* if (y >= (vBarYOn + vBarShortPixelCount)), use colorBkg */
|
|
y = vBarYOn + vBarShortPixelCount;
|
|
count = (vBarPixelCount > y) ? (vBarPixelCount - y) : 0;
|
|
|
|
while (count--)
|
|
{
|
|
if (!WriteColor(dstBuffer, clear->format, colorBkg))
|
|
return FALSE;
|
|
|
|
dstBuffer += GetBytesPerPixel(clear->format);
|
|
}
|
|
|
|
vBarEntry->count = vBarPixelCount;
|
|
clear->VBarStorageCursor = (clear->VBarStorageCursor + 1) % CLEARCODEC_VBAR_SIZE;
|
|
}
|
|
|
|
if (vBarEntry->count != vBarHeight)
|
|
{
|
|
WLog_ERR(TAG, "vBarEntry->count %" PRIu32 " != vBarHeight %" PRIu32 "",
|
|
vBarEntry->count, vBarHeight);
|
|
vBarEntry->count = vBarHeight;
|
|
|
|
if (!resize_vbar_entry(clear, vBarEntry))
|
|
return FALSE;
|
|
}
|
|
|
|
nXDstRel = nXDst + xStart;
|
|
nYDstRel = nYDst + yStart;
|
|
pSrcPixel = vBarEntry->pixels;
|
|
|
|
if (i < nWidth)
|
|
{
|
|
count = vBarEntry->count;
|
|
|
|
if (count > nHeight)
|
|
count = nHeight;
|
|
|
|
for (y = 0; y < count; y++)
|
|
{
|
|
BYTE* pDstPixel8 = &pDstData[((nYDstRel + y) * nDstStep) +
|
|
((nXDstRel + i) * GetBytesPerPixel(DstFormat))];
|
|
UINT32 color = ReadColor(pSrcPixel, clear->format);
|
|
color = FreeRDPConvertColor(color, clear->format, DstFormat, NULL);
|
|
|
|
if (!WriteColor(pDstPixel8, DstFormat, color))
|
|
return FALSE;
|
|
|
|
pSrcPixel += GetBytesPerPixel(clear->format);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static BOOL clear_decompress_glyph_data(CLEAR_CONTEXT* clear, wStream* s, UINT32 glyphFlags,
|
|
UINT32 nWidth, UINT32 nHeight, BYTE* pDstData,
|
|
UINT32 DstFormat, UINT32 nDstStep, UINT32 nXDst,
|
|
UINT32 nYDst, UINT32 nDstWidth, UINT32 nDstHeight,
|
|
const gdiPalette* palette, BYTE** ppGlyphData)
|
|
{
|
|
UINT16 glyphIndex = 0;
|
|
|
|
if (ppGlyphData)
|
|
*ppGlyphData = NULL;
|
|
|
|
if ((glyphFlags & CLEARCODEC_FLAG_GLYPH_HIT) && !(glyphFlags & CLEARCODEC_FLAG_GLYPH_INDEX))
|
|
{
|
|
WLog_ERR(TAG, "Invalid glyph flags %08" PRIX32 "", glyphFlags);
|
|
return FALSE;
|
|
}
|
|
|
|
if ((glyphFlags & CLEARCODEC_FLAG_GLYPH_INDEX) == 0)
|
|
return TRUE;
|
|
|
|
if ((nWidth * nHeight) > (1024 * 1024))
|
|
{
|
|
WLog_ERR(TAG, "glyph too large: %" PRIu32 "x%" PRIu32 "", nWidth, nHeight);
|
|
return FALSE;
|
|
}
|
|
|
|
if (Stream_GetRemainingLength(s) < 2)
|
|
{
|
|
WLog_ERR(TAG, "stream short %" PRIuz " [2 expected]", Stream_GetRemainingLength(s));
|
|
return FALSE;
|
|
}
|
|
|
|
Stream_Read_UINT16(s, glyphIndex);
|
|
|
|
if (glyphIndex >= 4000)
|
|
{
|
|
WLog_ERR(TAG, "Invalid glyphIndex %" PRIu16 "", glyphIndex);
|
|
return FALSE;
|
|
}
|
|
|
|
if (glyphFlags & CLEARCODEC_FLAG_GLYPH_HIT)
|
|
{
|
|
UINT32 nSrcStep;
|
|
CLEAR_GLYPH_ENTRY* glyphEntry = &(clear->GlyphCache[glyphIndex]);
|
|
BYTE* glyphData;
|
|
|
|
if (!glyphEntry)
|
|
{
|
|
WLog_ERR(TAG, "clear->GlyphCache[%" PRIu16 "]=NULL", glyphIndex);
|
|
return FALSE;
|
|
}
|
|
|
|
glyphData = (BYTE*)glyphEntry->pixels;
|
|
|
|
if (!glyphData)
|
|
{
|
|
WLog_ERR(TAG, "clear->GlyphCache[%" PRIu16 "]->pixels=NULL", glyphIndex);
|
|
return FALSE;
|
|
}
|
|
|
|
if ((nWidth * nHeight) > glyphEntry->count)
|
|
{
|
|
WLog_ERR(TAG,
|
|
"(nWidth %" PRIu32 " * nHeight %" PRIu32 ") > glyphEntry->count %" PRIu32 "",
|
|
nWidth, nHeight, glyphEntry->count);
|
|
return FALSE;
|
|
}
|
|
|
|
nSrcStep = nWidth * GetBytesPerPixel(clear->format);
|
|
return convert_color(pDstData, nDstStep, DstFormat, nXDst, nYDst, nWidth, nHeight,
|
|
glyphData, nSrcStep, clear->format, nDstWidth, nDstHeight, palette);
|
|
}
|
|
|
|
if (glyphFlags & CLEARCODEC_FLAG_GLYPH_INDEX)
|
|
{
|
|
const UINT32 bpp = GetBytesPerPixel(clear->format);
|
|
CLEAR_GLYPH_ENTRY* glyphEntry = &(clear->GlyphCache[glyphIndex]);
|
|
glyphEntry->count = nWidth * nHeight;
|
|
|
|
if (glyphEntry->count > glyphEntry->size)
|
|
{
|
|
BYTE* tmp;
|
|
tmp = realloc(glyphEntry->pixels, glyphEntry->count * bpp);
|
|
|
|
if (!tmp)
|
|
{
|
|
WLog_ERR(TAG, "glyphEntry->pixels realloc %" PRIu32 " failed!",
|
|
glyphEntry->count * bpp);
|
|
return FALSE;
|
|
}
|
|
|
|
glyphEntry->size = glyphEntry->count;
|
|
glyphEntry->pixels = (UINT32*)tmp;
|
|
}
|
|
|
|
if (!glyphEntry->pixels)
|
|
{
|
|
WLog_ERR(TAG, "glyphEntry->pixels=NULL");
|
|
return FALSE;
|
|
}
|
|
|
|
if (ppGlyphData)
|
|
*ppGlyphData = (BYTE*)glyphEntry->pixels;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static INLINE BOOL updateContextFormat(CLEAR_CONTEXT* clear, UINT32 DstFormat)
|
|
{
|
|
if (!clear || !clear->nsc)
|
|
return FALSE;
|
|
|
|
clear->format = DstFormat;
|
|
return nsc_context_set_pixel_format(clear->nsc, DstFormat);
|
|
}
|
|
|
|
INT32 clear_decompress(CLEAR_CONTEXT* clear, const BYTE* pSrcData, UINT32 SrcSize, UINT32 nWidth,
|
|
UINT32 nHeight, BYTE* pDstData, UINT32 DstFormat, UINT32 nDstStep,
|
|
UINT32 nXDst, UINT32 nYDst, UINT32 nDstWidth, UINT32 nDstHeight,
|
|
const gdiPalette* palette)
|
|
{
|
|
INT32 rc = -1;
|
|
BYTE seqNumber;
|
|
BYTE glyphFlags;
|
|
UINT32 residualByteCount;
|
|
UINT32 bandsByteCount;
|
|
UINT32 subcodecByteCount;
|
|
wStream* s;
|
|
BYTE* glyphData = NULL;
|
|
|
|
if (!pDstData)
|
|
return -1002;
|
|
|
|
if ((nDstWidth == 0) || (nDstHeight == 0))
|
|
return -1022;
|
|
|
|
if ((nWidth > 0xFFFF) || (nHeight > 0xFFFF))
|
|
return -1004;
|
|
|
|
s = Stream_New((BYTE*)pSrcData, SrcSize);
|
|
|
|
if (!s)
|
|
return -2005;
|
|
|
|
Stream_SetLength(s, SrcSize);
|
|
|
|
if (Stream_GetRemainingLength(s) < 2)
|
|
{
|
|
WLog_ERR(TAG, "stream short %" PRIuz " [2 expected]", Stream_GetRemainingLength(s));
|
|
goto fail;
|
|
}
|
|
|
|
if (!updateContextFormat(clear, DstFormat))
|
|
goto fail;
|
|
|
|
Stream_Read_UINT8(s, glyphFlags);
|
|
Stream_Read_UINT8(s, seqNumber);
|
|
|
|
if (!clear->seqNumber && seqNumber)
|
|
clear->seqNumber = seqNumber;
|
|
|
|
if (seqNumber != clear->seqNumber)
|
|
{
|
|
WLog_ERR(TAG, "Sequence number unexpected %" PRIu8 " - %" PRIu32 "", seqNumber,
|
|
clear->seqNumber);
|
|
WLog_ERR(TAG, "seqNumber %" PRIu8 " != clear->seqNumber %" PRIu32 "", seqNumber,
|
|
clear->seqNumber);
|
|
goto fail;
|
|
}
|
|
|
|
clear->seqNumber = (seqNumber + 1) % 256;
|
|
|
|
if (glyphFlags & CLEARCODEC_FLAG_CACHE_RESET)
|
|
{
|
|
clear->VBarStorageCursor = 0;
|
|
clear->ShortVBarStorageCursor = 0;
|
|
}
|
|
|
|
if (!clear_decompress_glyph_data(clear, s, glyphFlags, nWidth, nHeight, pDstData, DstFormat,
|
|
nDstStep, nXDst, nYDst, nDstWidth, nDstHeight, palette,
|
|
&glyphData))
|
|
{
|
|
WLog_ERR(TAG, "clear_decompress_glyph_data failed!");
|
|
goto fail;
|
|
}
|
|
|
|
/* Read composition payload header parameters */
|
|
if (Stream_GetRemainingLength(s) < 12)
|
|
{
|
|
const UINT32 mask = (CLEARCODEC_FLAG_GLYPH_HIT | CLEARCODEC_FLAG_GLYPH_INDEX);
|
|
|
|
if ((glyphFlags & mask) == mask)
|
|
goto finish;
|
|
|
|
WLog_ERR(TAG, "stream short %" PRIuz " [12 expected]", Stream_GetRemainingLength(s));
|
|
goto fail;
|
|
}
|
|
|
|
Stream_Read_UINT32(s, residualByteCount);
|
|
Stream_Read_UINT32(s, bandsByteCount);
|
|
Stream_Read_UINT32(s, subcodecByteCount);
|
|
|
|
if (residualByteCount > 0)
|
|
{
|
|
if (!clear_decompress_residual_data(clear, s, residualByteCount, nWidth, nHeight, pDstData,
|
|
DstFormat, nDstStep, nXDst, nYDst, nDstWidth,
|
|
nDstHeight, palette))
|
|
{
|
|
WLog_ERR(TAG, "clear_decompress_residual_data failed!");
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
if (bandsByteCount > 0)
|
|
{
|
|
if (!clear_decompress_bands_data(clear, s, bandsByteCount, nWidth, nHeight, pDstData,
|
|
DstFormat, nDstStep, nXDst, nYDst))
|
|
{
|
|
WLog_ERR(TAG, "clear_decompress_bands_data failed!");
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
if (subcodecByteCount > 0)
|
|
{
|
|
if (!clear_decompress_subcodecs_data(clear, s, subcodecByteCount, nWidth, nHeight, pDstData,
|
|
DstFormat, nDstStep, nXDst, nYDst, nDstWidth,
|
|
nDstHeight, palette))
|
|
{
|
|
WLog_ERR(TAG, "clear_decompress_subcodecs_data failed!");
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
if (glyphData)
|
|
{
|
|
if (!freerdp_image_copy(glyphData, clear->format, 0, 0, 0, nWidth, nHeight, pDstData,
|
|
DstFormat, nDstStep, nXDst, nYDst, palette, FREERDP_FLIP_NONE))
|
|
goto fail;
|
|
}
|
|
|
|
finish:
|
|
rc = 0;
|
|
fail:
|
|
Stream_Free(s, FALSE);
|
|
return rc;
|
|
}
|
|
|
|
int clear_compress(CLEAR_CONTEXT* clear, const BYTE* pSrcData, UINT32 SrcSize, BYTE** ppDstData,
|
|
UINT32* pDstSize)
|
|
{
|
|
WLog_ERR(TAG, "TODO: %s not implemented!", __FUNCTION__);
|
|
return 1;
|
|
}
|
|
BOOL clear_context_reset(CLEAR_CONTEXT* clear)
|
|
{
|
|
if (!clear)
|
|
return FALSE;
|
|
|
|
clear->seqNumber = 0;
|
|
return TRUE;
|
|
}
|
|
CLEAR_CONTEXT* clear_context_new(BOOL Compressor)
|
|
{
|
|
CLEAR_CONTEXT* clear;
|
|
clear = (CLEAR_CONTEXT*)calloc(1, sizeof(CLEAR_CONTEXT));
|
|
|
|
if (!clear)
|
|
return NULL;
|
|
|
|
clear->Compressor = Compressor;
|
|
clear->nsc = nsc_context_new();
|
|
|
|
if (!clear->nsc)
|
|
goto error_nsc;
|
|
|
|
if (!updateContextFormat(clear, PIXEL_FORMAT_BGRX32))
|
|
goto error_nsc;
|
|
|
|
if (!clear_resize_buffer(clear, 512, 512))
|
|
goto error_nsc;
|
|
|
|
if (!clear->TempBuffer)
|
|
goto error_nsc;
|
|
|
|
if (!clear_context_reset(clear))
|
|
goto error_nsc;
|
|
|
|
return clear;
|
|
error_nsc:
|
|
clear_context_free(clear);
|
|
return NULL;
|
|
}
|
|
void clear_context_free(CLEAR_CONTEXT* clear)
|
|
{
|
|
int i;
|
|
|
|
if (!clear)
|
|
return;
|
|
|
|
nsc_context_free(clear->nsc);
|
|
free(clear->TempBuffer);
|
|
|
|
for (i = 0; i < 4000; i++)
|
|
free(clear->GlyphCache[i].pixels);
|
|
|
|
for (i = 0; i < 32768; i++)
|
|
free(clear->VBarStorage[i].pixels);
|
|
|
|
for (i = 0; i < 16384; i++)
|
|
free(clear->ShortVBarStorage[i].pixels);
|
|
|
|
free(clear);
|
|
}
|