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/* 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 uint8_t* buffer) const
{
Pixel p;
p = 0;
if (bigEndian) {
switch (bpp) {
case 32:
p |= ((Pixel)*(buffer++)) << 24;
p |= ((Pixel)*(buffer++)) << 16;
/* fall through */
case 16:
p |= ((Pixel)*(buffer++)) << 8;
/* fall through */
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(uint8_t* buffer, Pixel p) const
{
if (bigEndian) {
switch (bpp) {
case 32:
*(buffer++) = (p >> 24) & 0xff;
*(buffer++) = (p >> 16) & 0xff;
/* fall through */
case 16:
*(buffer++) = (p >> 8) & 0xff;
/* fall through */
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(uint16_t red, uint16_t green, uint16_t 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(uint8_t red, uint8_t green, uint8_t 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, uint16_t *r, uint16_t *g, uint16_t *b) const
{
uint8_t _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, uint8_t *r, uint8_t *g, uint8_t *b) const
{
uint8_t _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];
}
}
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