460 lines
12 KiB
C
460 lines
12 KiB
C
/**
|
|
* FreeRDP: A Remote Desktop Protocol Implementation
|
|
* Interleaved RLE Bitmap Codec
|
|
*
|
|
* Copyright 2014 Marc-Andre Moreau <marcandre.moreau@gmail.com>
|
|
* Copyright 2015 Thincast Technologies GmbH
|
|
* Copyright 2015 DI (FH) Martin Haimberger <martin.haimberger@thincast.com>
|
|
* 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.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include <freerdp/codec/interleaved.h>
|
|
#include <freerdp/log.h>
|
|
|
|
#define TAG FREERDP_TAG("codec")
|
|
|
|
/*
|
|
RLE Compressed Bitmap Stream (RLE_BITMAP_STREAM)
|
|
http://msdn.microsoft.com/en-us/library/cc240895%28v=prot.10%29.aspx
|
|
pseudo-code
|
|
http://msdn.microsoft.com/en-us/library/dd240593%28v=prot.10%29.aspx
|
|
*/
|
|
|
|
#define REGULAR_BG_RUN 0x00
|
|
#define MEGA_MEGA_BG_RUN 0xF0
|
|
#define REGULAR_FG_RUN 0x01
|
|
#define MEGA_MEGA_FG_RUN 0xF1
|
|
#define LITE_SET_FG_FG_RUN 0x0C
|
|
#define MEGA_MEGA_SET_FG_RUN 0xF6
|
|
#define LITE_DITHERED_RUN 0x0E
|
|
#define MEGA_MEGA_DITHERED_RUN 0xF8
|
|
#define REGULAR_COLOR_RUN 0x03
|
|
#define MEGA_MEGA_COLOR_RUN 0xF3
|
|
#define REGULAR_FGBG_IMAGE 0x02
|
|
#define MEGA_MEGA_FGBG_IMAGE 0xF2
|
|
#define LITE_SET_FG_FGBG_IMAGE 0x0D
|
|
#define MEGA_MEGA_SET_FGBG_IMAGE 0xF7
|
|
#define REGULAR_COLOR_IMAGE 0x04
|
|
#define MEGA_MEGA_COLOR_IMAGE 0xF4
|
|
#define SPECIAL_FGBG_1 0xF9
|
|
#define SPECIAL_FGBG_2 0xFA
|
|
#define SPECIAL_WHITE 0xFD
|
|
#define SPECIAL_BLACK 0xFE
|
|
|
|
#define BLACK_PIXEL 0x000000
|
|
#define WHITE_PIXEL 0xFFFFFF
|
|
|
|
typedef UINT32 PIXEL;
|
|
|
|
static const BYTE g_MaskBit0 = 0x01; /* Least significant bit */
|
|
static const BYTE g_MaskBit1 = 0x02;
|
|
static const BYTE g_MaskBit2 = 0x04;
|
|
static const BYTE g_MaskBit3 = 0x08;
|
|
static const BYTE g_MaskBit4 = 0x10;
|
|
static const BYTE g_MaskBit5 = 0x20;
|
|
static const BYTE g_MaskBit6 = 0x40;
|
|
static const BYTE g_MaskBit7 = 0x80; /* Most significant bit */
|
|
|
|
static const BYTE g_MaskSpecialFgBg1 = 0x03;
|
|
static const BYTE g_MaskSpecialFgBg2 = 0x05;
|
|
|
|
static const BYTE g_MaskRegularRunLength = 0x1F;
|
|
static const BYTE g_MaskLiteRunLength = 0x0F;
|
|
|
|
/**
|
|
* Reads the supplied order header and extracts the compression
|
|
* order code ID.
|
|
*/
|
|
static INLINE UINT32 ExtractCodeId(BYTE bOrderHdr)
|
|
{
|
|
if ((bOrderHdr & 0xC0U) != 0xC0U)
|
|
{
|
|
/* REGULAR orders
|
|
* (000x xxxx, 001x xxxx, 010x xxxx, 011x xxxx, 100x xxxx)
|
|
*/
|
|
return bOrderHdr >> 5;
|
|
}
|
|
else if ((bOrderHdr & 0xF0U) == 0xF0U)
|
|
{
|
|
/* MEGA and SPECIAL orders (0xF*) */
|
|
return bOrderHdr;
|
|
}
|
|
else
|
|
{
|
|
/* LITE orders
|
|
* 1100 xxxx, 1101 xxxx, 1110 xxxx)
|
|
*/
|
|
return bOrderHdr >> 4;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Extract the run length of a compression order.
|
|
*/
|
|
static INLINE UINT32 ExtractRunLength(UINT32 code, const BYTE* pbOrderHdr,
|
|
UINT32* advance)
|
|
{
|
|
UINT32 runLength;
|
|
UINT32 ladvance;
|
|
ladvance = 1;
|
|
runLength = 0;
|
|
|
|
switch (code)
|
|
{
|
|
case REGULAR_FGBG_IMAGE:
|
|
runLength = (*pbOrderHdr) & g_MaskRegularRunLength;
|
|
|
|
if (runLength == 0)
|
|
{
|
|
runLength = (*(pbOrderHdr + 1)) + 1;
|
|
ladvance += 1;
|
|
}
|
|
else
|
|
{
|
|
runLength = runLength * 8;
|
|
}
|
|
|
|
break;
|
|
|
|
case LITE_SET_FG_FGBG_IMAGE:
|
|
runLength = (*pbOrderHdr) & g_MaskLiteRunLength;
|
|
|
|
if (runLength == 0)
|
|
{
|
|
runLength = (*(pbOrderHdr + 1)) + 1;
|
|
ladvance += 1;
|
|
}
|
|
else
|
|
{
|
|
runLength = runLength * 8;
|
|
}
|
|
|
|
break;
|
|
|
|
case REGULAR_BG_RUN:
|
|
case REGULAR_FG_RUN:
|
|
case REGULAR_COLOR_RUN:
|
|
case REGULAR_COLOR_IMAGE:
|
|
runLength = (*pbOrderHdr) & g_MaskRegularRunLength;
|
|
|
|
if (runLength == 0)
|
|
{
|
|
/* An extended (MEGA) run. */
|
|
runLength = (*(pbOrderHdr + 1)) + 32;
|
|
ladvance += 1;
|
|
}
|
|
|
|
break;
|
|
|
|
case LITE_SET_FG_FG_RUN:
|
|
case LITE_DITHERED_RUN:
|
|
runLength = (*pbOrderHdr) & g_MaskLiteRunLength;
|
|
|
|
if (runLength == 0)
|
|
{
|
|
/* An extended (MEGA) run. */
|
|
runLength = (*(pbOrderHdr + 1)) + 16;
|
|
ladvance += 1;
|
|
}
|
|
|
|
break;
|
|
|
|
case MEGA_MEGA_BG_RUN:
|
|
case MEGA_MEGA_FG_RUN:
|
|
case MEGA_MEGA_SET_FG_RUN:
|
|
case MEGA_MEGA_DITHERED_RUN:
|
|
case MEGA_MEGA_COLOR_RUN:
|
|
case MEGA_MEGA_FGBG_IMAGE:
|
|
case MEGA_MEGA_SET_FGBG_IMAGE:
|
|
case MEGA_MEGA_COLOR_IMAGE:
|
|
runLength = ((UINT16) pbOrderHdr[1]) | ((UINT16)(pbOrderHdr[2] << 8));
|
|
ladvance += 2;
|
|
break;
|
|
}
|
|
|
|
*advance = ladvance;
|
|
return runLength;
|
|
}
|
|
|
|
#define UNROLL_COUNT 4
|
|
#define UNROLL(_exp) do { _exp _exp _exp _exp } while (0)
|
|
|
|
#undef DESTWRITEPIXEL
|
|
#undef DESTREADPIXEL
|
|
#undef SRCREADPIXEL
|
|
#undef DESTNEXTPIXEL
|
|
#undef SRCNEXTPIXEL
|
|
#undef WRITEFGBGIMAGE
|
|
#undef WRITEFIRSTLINEFGBGIMAGE
|
|
#undef RLEDECOMPRESS
|
|
#undef RLEEXTRA
|
|
#define DESTWRITEPIXEL(_buf, _pix) (_buf)[0] = (BYTE)(_pix)
|
|
#define DESTREADPIXEL(_pix, _buf) _pix = (_buf)[0]
|
|
#define SRCREADPIXEL(_pix, _buf) _pix = (_buf)[0]
|
|
#define DESTNEXTPIXEL(_buf) _buf += 1
|
|
#define SRCNEXTPIXEL(_buf) _buf += 1
|
|
#define WRITEFGBGIMAGE WriteFgBgImage8to8
|
|
#define WRITEFIRSTLINEFGBGIMAGE WriteFirstLineFgBgImage8to8
|
|
#define RLEDECOMPRESS RleDecompress8to8
|
|
#define RLEEXTRA
|
|
#include "include/bitmap.c"
|
|
|
|
#undef DESTWRITEPIXEL
|
|
#undef DESTREADPIXEL
|
|
#undef SRCREADPIXEL
|
|
#undef DESTNEXTPIXEL
|
|
#undef SRCNEXTPIXEL
|
|
#undef WRITEFGBGIMAGE
|
|
#undef WRITEFIRSTLINEFGBGIMAGE
|
|
#undef RLEDECOMPRESS
|
|
#undef RLEEXTRA
|
|
#define DESTWRITEPIXEL(_buf, _pix) ((UINT16*)(_buf))[0] = (UINT16)(_pix)
|
|
#define DESTREADPIXEL(_pix, _buf) _pix = ((UINT16*)(_buf))[0]
|
|
#ifdef HAVE_ALIGNED_REQUIRED
|
|
#define SRCREADPIXEL(_pix, _buf) _pix = (_buf)[0] | ((_buf)[1] << 8)
|
|
#else
|
|
#define SRCREADPIXEL(_pix, _buf) _pix = ((UINT16*)(_buf))[0]
|
|
#endif
|
|
#define DESTNEXTPIXEL(_buf) _buf += 2
|
|
#define SRCNEXTPIXEL(_buf) _buf += 2
|
|
#define WRITEFGBGIMAGE WriteFgBgImage16to16
|
|
#define WRITEFIRSTLINEFGBGIMAGE WriteFirstLineFgBgImage16to16
|
|
#define RLEDECOMPRESS RleDecompress16to16
|
|
#define RLEEXTRA
|
|
#include "include/bitmap.c"
|
|
|
|
#undef DESTWRITEPIXEL
|
|
#undef DESTREADPIXEL
|
|
#undef SRCREADPIXEL
|
|
#undef DESTNEXTPIXEL
|
|
#undef SRCNEXTPIXEL
|
|
#undef WRITEFGBGIMAGE
|
|
#undef WRITEFIRSTLINEFGBGIMAGE
|
|
#undef RLEDECOMPRESS
|
|
#undef RLEEXTRA
|
|
#define DESTWRITEPIXEL(_buf, _pix) do { (_buf)[0] = (BYTE)(_pix); \
|
|
(_buf)[1] = (BYTE)((_pix) >> 8); (_buf)[2] = (BYTE)((_pix) >> 16); } while (0)
|
|
#define DESTREADPIXEL(_pix, _buf) _pix = (_buf)[0] | ((_buf)[1] << 8) | \
|
|
((_buf)[2] << 16)
|
|
#define SRCREADPIXEL(_pix, _buf) _pix = (_buf)[0] | ((_buf)[1] << 8) | \
|
|
((_buf)[2] << 16)
|
|
#define DESTNEXTPIXEL(_buf) _buf += 3
|
|
#define SRCNEXTPIXEL(_buf) _buf += 3
|
|
#define WRITEFGBGIMAGE WriteFgBgImage24to24
|
|
#define WRITEFIRSTLINEFGBGIMAGE WriteFirstLineFgBgImage24to24
|
|
#define RLEDECOMPRESS RleDecompress24to24
|
|
#define RLEEXTRA
|
|
#include "include/bitmap.c"
|
|
|
|
BOOL interleaved_decompress(BITMAP_INTERLEAVED_CONTEXT* interleaved,
|
|
const BYTE* pSrcData, UINT32 SrcSize,
|
|
UINT32 nSrcWidth, UINT32 nSrcHeight,
|
|
UINT32 bpp,
|
|
BYTE* pDstData, UINT32 DstFormat,
|
|
UINT32 nDstStep, UINT32 nXDst, UINT32 nYDst,
|
|
UINT32 nDstWidth, UINT32 nDstHeight,
|
|
const gdiPalette* palette)
|
|
{
|
|
UINT32 scanline;
|
|
UINT32 SrcFormat;
|
|
UINT32 BufferSize;
|
|
UINT32 dstBitsPerPixel;
|
|
UINT32 dstBytesPerPixel;
|
|
dstBitsPerPixel = GetBitsPerPixel(DstFormat);
|
|
dstBytesPerPixel = GetBytesPerPixel(DstFormat);
|
|
|
|
if (!interleaved)
|
|
return FALSE;
|
|
|
|
if (nDstStep <= 0)
|
|
nDstStep = nDstWidth * dstBytesPerPixel;
|
|
|
|
switch (bpp)
|
|
{
|
|
case 24:
|
|
scanline = nSrcWidth * 3;
|
|
SrcFormat = PIXEL_FORMAT_BGR24_VF;
|
|
break;
|
|
|
|
case 16:
|
|
scanline = nSrcWidth * 2;
|
|
SrcFormat = PIXEL_FORMAT_RGB16_VF;
|
|
break;
|
|
|
|
case 15:
|
|
scanline = nSrcWidth * 2;
|
|
SrcFormat = PIXEL_FORMAT_RGB15_VF;
|
|
break;
|
|
|
|
case 8:
|
|
scanline = nSrcWidth;
|
|
SrcFormat = PIXEL_FORMAT_RGB8_VF;
|
|
break;
|
|
|
|
default:
|
|
WLog_ERR(TAG, "Invalid color depth %d", bpp);
|
|
return FALSE;
|
|
}
|
|
|
|
BufferSize = scanline * nSrcHeight;
|
|
|
|
if (BufferSize > interleaved->TempSize)
|
|
{
|
|
interleaved->TempBuffer = _aligned_realloc(
|
|
interleaved->TempBuffer,
|
|
BufferSize, 16);
|
|
interleaved->TempSize = BufferSize;
|
|
}
|
|
|
|
if (!interleaved->TempBuffer)
|
|
return FALSE;
|
|
|
|
switch (bpp)
|
|
{
|
|
case 24:
|
|
RleDecompress24to24(pSrcData, SrcSize, interleaved->TempBuffer,
|
|
scanline, nSrcWidth, nSrcHeight);
|
|
break;
|
|
|
|
case 16:
|
|
case 15:
|
|
RleDecompress16to16(pSrcData, SrcSize, interleaved->TempBuffer,
|
|
scanline, nSrcWidth, nSrcHeight);
|
|
break;
|
|
|
|
case 8:
|
|
RleDecompress8to8(pSrcData, SrcSize, interleaved->TempBuffer,
|
|
scanline, nSrcWidth, nSrcHeight);
|
|
break;
|
|
|
|
default:
|
|
return FALSE;
|
|
}
|
|
|
|
return freerdp_image_copy(pDstData, DstFormat, nDstStep, nXDst, nYDst,
|
|
nDstWidth, nDstHeight, interleaved->TempBuffer,
|
|
SrcFormat, scanline, 0, 0, palette);
|
|
}
|
|
|
|
BOOL interleaved_compress(BITMAP_INTERLEAVED_CONTEXT* interleaved,
|
|
BYTE* pDstData, UINT32* pDstSize,
|
|
UINT32 nWidth, UINT32 nHeight,
|
|
const BYTE* pSrcData, UINT32 SrcFormat,
|
|
UINT32 nSrcStep, UINT32 nXSrc, UINT32 nYSrc,
|
|
const gdiPalette* palette, UINT32 bpp)
|
|
{
|
|
int status;
|
|
wStream* s;
|
|
UINT32 DstFormat = 0;
|
|
int maxSize = 64 * 64 * 4;
|
|
|
|
if (nWidth % 4)
|
|
{
|
|
WLog_ERR(TAG, "interleaved_compress: width is not a multiple of 4");
|
|
return FALSE;
|
|
}
|
|
|
|
if ((nWidth > 64) || (nHeight > 64))
|
|
{
|
|
WLog_ERR(TAG,
|
|
"interleaved_compress: width (%d) or height (%d) is greater than 64", nWidth,
|
|
nHeight);
|
|
return FALSE;
|
|
}
|
|
|
|
if (bpp == 24)
|
|
DstFormat = PIXEL_FORMAT_XRGB32;
|
|
else if (bpp == 16)
|
|
DstFormat = PIXEL_FORMAT_RGB16;
|
|
else if (bpp == 15)
|
|
DstFormat = PIXEL_FORMAT_RGB15;
|
|
else if (bpp == 8)
|
|
DstFormat = PIXEL_FORMAT_RGB8;
|
|
|
|
if (!DstFormat)
|
|
return FALSE;
|
|
|
|
status = freerdp_image_copy(interleaved->TempBuffer, DstFormat, 0, 0, 0, nWidth,
|
|
nHeight,
|
|
pSrcData, SrcFormat, nSrcStep, nXSrc, nYSrc, palette);
|
|
s = Stream_New(pDstData, maxSize);
|
|
|
|
if (!s)
|
|
return FALSE;
|
|
|
|
status = freerdp_bitmap_compress((char*) interleaved->TempBuffer, nWidth,
|
|
nHeight,
|
|
s, bpp, maxSize, nHeight - 1, interleaved->bts, 0);
|
|
Stream_SealLength(s);
|
|
*pDstSize = (UINT32) Stream_Length(s);
|
|
Stream_Free(s, FALSE);
|
|
return status;
|
|
}
|
|
|
|
BOOL bitmap_interleaved_context_reset(BITMAP_INTERLEAVED_CONTEXT* interleaved)
|
|
{
|
|
if (!interleaved)
|
|
return FALSE;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
BITMAP_INTERLEAVED_CONTEXT* bitmap_interleaved_context_new(BOOL Compressor)
|
|
{
|
|
BITMAP_INTERLEAVED_CONTEXT* interleaved;
|
|
interleaved = (BITMAP_INTERLEAVED_CONTEXT*) calloc(1,
|
|
sizeof(BITMAP_INTERLEAVED_CONTEXT));
|
|
|
|
if (interleaved)
|
|
{
|
|
interleaved->TempSize = 64 * 64 * 4;
|
|
interleaved->TempBuffer = _aligned_malloc(interleaved->TempSize, 16);
|
|
|
|
if (!interleaved->TempBuffer)
|
|
{
|
|
free(interleaved);
|
|
WLog_ERR(TAG, "_aligned_malloc failed!");
|
|
return NULL;
|
|
}
|
|
|
|
interleaved->bts = Stream_New(NULL, interleaved->TempSize);
|
|
|
|
if (!interleaved->bts)
|
|
{
|
|
_aligned_free(interleaved->TempBuffer);
|
|
free(interleaved);
|
|
WLog_ERR(TAG, "Stream_New failed!");
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
return interleaved;
|
|
}
|
|
|
|
void bitmap_interleaved_context_free(BITMAP_INTERLEAVED_CONTEXT* interleaved)
|
|
{
|
|
if (!interleaved)
|
|
return;
|
|
|
|
_aligned_free(interleaved->TempBuffer);
|
|
Stream_Free(interleaved->bts, TRUE);
|
|
free(interleaved);
|
|
}
|