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FreeRDP/libfreerdp/codec/interleaved.c

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/**
* 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")
#define UNROLL_BODY(_exp, _count) \
do \
{ \
size_t x; \
for (x = 0; x < (_count); x++) \
{ \
do \
_exp while (FALSE); \
} \
} while (FALSE)
#define UNROLL_MULTIPLE(_condition, _exp, _count) \
do \
{ \
while ((_condition) >= _count) \
{ \
UNROLL_BODY(_exp, _count); \
(_condition) -= _count; \
} \
} while (FALSE)
#define UNROLL(_condition, _exp) \
do \
{ \
UNROLL_MULTIPLE(_condition, _exp, 16); \
UNROLL_MULTIPLE(_condition, _exp, 4); \
UNROLL_MULTIPLE(_condition, _exp, 1); \
} while (FALSE)
/*
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
typedef UINT32 PIXEL;
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;
}
static INLINE BOOL ensure_capacity(const BYTE* start, const BYTE* end, size_t size, size_t base)
{
const size_t available = (uintptr_t)end - (uintptr_t)start;
const BOOL rc = available >= size * base;
return rc && (start <= end);
}
static INLINE void write_pixel_8(BYTE* _buf, BYTE _pix)
{
*_buf = _pix;
}
static INLINE void write_pixel_24(BYTE* _buf, UINT32 _pix)
{
(_buf)[0] = (BYTE)(_pix);
(_buf)[1] = (BYTE)((_pix) >> 8);
(_buf)[2] = (BYTE)((_pix) >> 16);
}
static INLINE void write_pixel_16(BYTE* _buf, UINT16 _pix)
{
_buf[0] = _pix & 0xFF;
_buf[1] = (_pix >> 8) & 0xFF;
}
#undef DESTWRITEPIXEL
#undef DESTREADPIXEL
#undef SRCREADPIXEL
#undef DESTNEXTPIXEL
#undef SRCNEXTPIXEL
#undef WRITEFGBGIMAGE
#undef WRITEFIRSTLINEFGBGIMAGE
#undef RLEDECOMPRESS
#undef RLEEXTRA
#undef WHITE_PIXEL
#define WHITE_PIXEL 0xFF
#define DESTWRITEPIXEL(_buf, _pix) write_pixel_8(_buf, _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
#undef ENSURE_CAPACITY
#define ENSURE_CAPACITY(_start, _end, _size) ensure_capacity(_start, _end, _size, 1)
#include "include/bitmap.c"
#undef DESTWRITEPIXEL
#undef DESTREADPIXEL
#undef SRCREADPIXEL
#undef DESTNEXTPIXEL
#undef SRCNEXTPIXEL
#undef WRITEFGBGIMAGE
#undef WRITEFIRSTLINEFGBGIMAGE
#undef RLEDECOMPRESS
#undef RLEEXTRA
#undef WHITE_PIXEL
#define WHITE_PIXEL 0xFFFF
#define DESTWRITEPIXEL(_buf, _pix) write_pixel_16(_buf, _pix)
#define DESTREADPIXEL(_pix, _buf) _pix = ((UINT16*)(_buf))[0]
#define SRCREADPIXEL(_pix, _buf) _pix = (_buf)[0] | ((_buf)[1] << 8)
#define DESTNEXTPIXEL(_buf) _buf += 2
#define SRCNEXTPIXEL(_buf) _buf += 2
#define WRITEFGBGIMAGE WriteFgBgImage16to16
#define WRITEFIRSTLINEFGBGIMAGE WriteFirstLineFgBgImage16to16
#define RLEDECOMPRESS RleDecompress16to16
#define RLEEXTRA
#undef ENSURE_CAPACITY
#define ENSURE_CAPACITY(_start, _end, _size) ensure_capacity(_start, _end, _size, 2)
#include "include/bitmap.c"
#undef DESTWRITEPIXEL
#undef DESTREADPIXEL
#undef SRCREADPIXEL
#undef DESTNEXTPIXEL
#undef SRCNEXTPIXEL
#undef WRITEFGBGIMAGE
#undef WRITEFIRSTLINEFGBGIMAGE
#undef RLEDECOMPRESS
#undef RLEEXTRA
#undef WHITE_PIXEL
#define WHITE_PIXEL 0xFFFFFF
#define DESTWRITEPIXEL(_buf, _pix) write_pixel_24(_buf, _pix)
#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
#undef ENSURE_CAPACITY
#define ENSURE_CAPACITY(_start, _end, _size) ensure_capacity(_start, _end, _size, 3)
#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;
if (!interleaved || !pSrcData || !pDstData)
return FALSE;
switch (bpp)
{
case 24:
scanline = nSrcWidth * 3;
SrcFormat = PIXEL_FORMAT_BGR24;
break;
case 16:
scanline = nSrcWidth * 2;
SrcFormat = PIXEL_FORMAT_RGB16;
break;
case 15:
scanline = nSrcWidth * 2;
SrcFormat = PIXEL_FORMAT_RGB15;
break;
case 8:
scanline = nSrcWidth;
SrcFormat = PIXEL_FORMAT_RGB8;
break;
default:
WLog_ERR(TAG, "Invalid color depth %" PRIu32 "", 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:
if (!RleDecompress24to24(pSrcData, SrcSize, interleaved->TempBuffer, scanline,
nSrcWidth, nSrcHeight))
return FALSE;
break;
case 16:
case 15:
if (!RleDecompress16to16(pSrcData, SrcSize, interleaved->TempBuffer, scanline,
nSrcWidth, nSrcHeight))
return FALSE;
break;
case 8:
if (!RleDecompress8to8(pSrcData, SrcSize, interleaved->TempBuffer, scanline, nSrcWidth,
nSrcHeight))
return FALSE;
break;
default:
return FALSE;
}
return freerdp_image_copy(pDstData, DstFormat, nDstStep, nXDst, nYDst, nDstWidth, nDstHeight,
interleaved->TempBuffer, SrcFormat, scanline, 0, 0, palette,
FREERDP_FLIP_VERTICAL);
}
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)
{
BOOL status;
wStream* s;
UINT32 DstFormat = 0;
const size_t maxSize = 64 * 64 * 4;
if (!interleaved || !pDstData || !pSrcData)
return FALSE;
if ((nWidth == 0) || (nHeight == 0))
return FALSE;
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 (%" PRIu32 ") or height (%" PRIu32
") is greater than 64",
nWidth, nHeight);
return FALSE;
}
switch (bpp)
{
case 24:
DstFormat = PIXEL_FORMAT_BGRX32;
break;
case 16:
DstFormat = PIXEL_FORMAT_RGB16;
break;
case 15:
DstFormat = PIXEL_FORMAT_RGB15;
break;
default:
return FALSE;
}
if (!freerdp_image_copy(interleaved->TempBuffer, DstFormat, 0, 0, 0, nWidth, nHeight, pSrcData,
SrcFormat, nSrcStep, nXSrc, nYSrc, palette, FREERDP_FLIP_NONE))
return FALSE;
s = Stream_New(pDstData, *pDstSize);
if (!s)
return FALSE;
Stream_SetPosition(interleaved->bts, 0);
if (freerdp_bitmap_compress(interleaved->TempBuffer, nWidth, nHeight, s, bpp, maxSize,
nHeight - 1, interleaved->bts, 0) < 0)
status = FALSE;
else
status = TRUE;
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);
}
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