mirror of
https://github.com/kasmtech/KasmVNC.git
synced 2024-12-25 16:18:53 +01:00
136 lines
3.1 KiB
C++
136 lines
3.1 KiB
C++
/* Copyright 2009-2014 Pierre Ossman for Cendio AB
|
|
*
|
|
* This is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This software is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this software; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
|
|
* USA.
|
|
*/
|
|
|
|
namespace rfb {
|
|
|
|
|
|
inline Pixel PixelFormat::pixelFromBuffer(const rdr::U8* buffer) const
|
|
{
|
|
Pixel p;
|
|
|
|
p = 0;
|
|
|
|
if (bigEndian) {
|
|
switch (bpp) {
|
|
case 32:
|
|
p |= ((Pixel)*(buffer++)) << 24;
|
|
p |= ((Pixel)*(buffer++)) << 16;
|
|
case 16:
|
|
p |= ((Pixel)*(buffer++)) << 8;
|
|
case 8:
|
|
p |= *buffer;
|
|
}
|
|
} else {
|
|
p |= buffer[0];
|
|
if (bpp >= 16) {
|
|
p |= ((Pixel)buffer[1]) << 8;
|
|
if (bpp == 32) {
|
|
p |= ((Pixel)buffer[2]) << 16;
|
|
p |= ((Pixel)buffer[3]) << 24;
|
|
}
|
|
}
|
|
}
|
|
|
|
return p;
|
|
}
|
|
|
|
|
|
inline void PixelFormat::bufferFromPixel(rdr::U8* buffer, Pixel p) const
|
|
{
|
|
if (bigEndian) {
|
|
switch (bpp) {
|
|
case 32:
|
|
*(buffer++) = (p >> 24) & 0xff;
|
|
*(buffer++) = (p >> 16) & 0xff;
|
|
case 16:
|
|
*(buffer++) = (p >> 8) & 0xff;
|
|
case 8:
|
|
*(buffer++) = (p >> 0) & 0xff;
|
|
}
|
|
} else {
|
|
buffer[0] = (p >> 0) & 0xff;
|
|
if (bpp >= 16) {
|
|
buffer[1] = (p >> 8) & 0xff;
|
|
if (bpp == 32) {
|
|
buffer[2] = (p >> 16) & 0xff;
|
|
buffer[3] = (p >> 24) & 0xff;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
inline Pixel PixelFormat::pixelFromRGB(rdr::U16 red, rdr::U16 green, rdr::U16 blue) const
|
|
{
|
|
Pixel p;
|
|
|
|
p = (Pixel)downconvTable[(redBits-1)*256 + (red >> 8)] << redShift;
|
|
p |= (Pixel)downconvTable[(greenBits-1)*256 + (green >> 8)] << greenShift;
|
|
p |= (Pixel)downconvTable[(blueBits-1)*256 + (blue >> 8)] << blueShift;
|
|
|
|
return p;
|
|
}
|
|
|
|
|
|
inline Pixel PixelFormat::pixelFromRGB(rdr::U8 red, rdr::U8 green, rdr::U8 blue) const
|
|
{
|
|
Pixel p;
|
|
|
|
p = (Pixel)downconvTable[(redBits-1)*256 + red] << redShift;
|
|
p |= (Pixel)downconvTable[(greenBits-1)*256 + green] << greenShift;
|
|
p |= (Pixel)downconvTable[(blueBits-1)*256 + blue] << blueShift;
|
|
|
|
return p;
|
|
}
|
|
|
|
|
|
inline void PixelFormat::rgbFromPixel(Pixel p, rdr::U16 *r, rdr::U16 *g, rdr::U16 *b) const
|
|
{
|
|
rdr::U8 _r, _g, _b;
|
|
|
|
_r = p >> redShift;
|
|
_g = p >> greenShift;
|
|
_b = p >> blueShift;
|
|
|
|
_r = upconvTable[(redBits-1)*256 + _r];
|
|
_g = upconvTable[(greenBits-1)*256 + _g];
|
|
_b = upconvTable[(blueBits-1)*256 + _b];
|
|
|
|
*r = _r << 8 | _r;
|
|
*g = _g << 8 | _g;
|
|
*b = _b << 8 | _b;
|
|
}
|
|
|
|
|
|
inline void PixelFormat::rgbFromPixel(Pixel p, rdr::U8 *r, rdr::U8 *g, rdr::U8 *b) const
|
|
{
|
|
rdr::U8 _r, _g, _b;
|
|
|
|
_r = p >> redShift;
|
|
_g = p >> greenShift;
|
|
_b = p >> blueShift;
|
|
|
|
*r = upconvTable[(redBits-1)*256 + _r];
|
|
*g = upconvTable[(greenBits-1)*256 + _g];
|
|
*b = upconvTable[(blueBits-1)*256 + _b];
|
|
}
|
|
|
|
|
|
}
|
|
|