FreeRDP/libfreerdp/codec/interleaved.c
2016-10-06 13:43:03 +02:00

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);
}