haiku/src/servers/app/SystemPalette.cpp

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//------------------------------------------------------------------------------
// Copyright (c) 2001-2002, Haiku, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//
// File Name: SystemPalette.cpp
// Author: DarkWyrm <bpmagic@columbus.rr.com>
// Description: One global function to generate the palette which is
// the default BeOS System palette and the variable to go with it
//
//------------------------------------------------------------------------------
// Local Includes --------------------------------------------------------------
#include "SystemPalette.h"
// TODO: BWindowScreen has a method to set the palette.
// maybe we should have a lock to protect this variable.
static color_map sColorMap;
const static rgb_color kSystemPalette[] = {
{ 0, 0, 0, 255 }, { 8, 8, 8, 255 }, { 16, 16, 16, 255 },
{ 24, 24, 24, 255 }, { 32, 32, 32, 255 }, { 40, 40, 40, 255 },
{ 48, 48, 48, 255 }, { 56, 56, 56, 255 }, { 64, 64, 64, 255 },
{ 72, 72, 72, 255 }, { 80, 80, 80, 255 }, { 88, 88, 88, 255 },
{ 96, 96, 96, 255 }, { 104, 104, 104, 255 }, { 112, 112, 112, 255 },
{ 120, 120, 120, 255 }, { 128, 128, 128, 255 }, { 136, 136, 136, 255 },
{ 144, 144, 144, 255 }, { 152, 152, 152, 255 }, { 160, 160, 160, 255 },
{ 168, 168, 168, 255 }, { 176, 176, 176, 255 }, { 184, 184, 184, 255 },
{ 192, 192, 192, 255 }, { 200, 200, 200, 255 }, { 208, 208, 208, 255 },
{ 216, 216, 216, 255 }, { 224, 224, 224, 255 }, { 232, 232, 232, 255 },
{ 240, 240, 240, 255 }, { 248, 248, 248, 255 }, { 0, 0, 255, 255 },
{ 0, 0, 229, 255 }, { 0, 0, 204, 255 }, { 0, 0, 179, 255 },
{ 0, 0, 154, 255 }, { 0, 0, 129, 255 }, { 0, 0, 105, 255 },
{ 0, 0, 80, 255 }, { 0, 0, 55, 255 }, { 0, 0, 30, 255 },
{ 255, 0, 0, 255 }, { 228, 0, 0, 255 }, { 203, 0, 0, 255 },
{ 178, 0, 0, 255 }, { 153, 0, 0, 255 }, { 128, 0, 0, 255 },
{ 105, 0, 0, 255 }, { 80, 0, 0, 255 }, { 55, 0, 0, 255 },
{ 30, 0, 0, 255 }, { 0, 255, 0, 255 }, { 0, 228, 0, 255 },
{ 0, 203, 0, 255 }, { 0, 178, 0, 255 }, { 0, 153, 0, 255 },
{ 0, 128, 0, 255 }, { 0, 105, 0, 255 }, { 0, 80, 0, 255 },
{ 0, 55, 0, 255 }, { 0, 30, 0, 255 }, { 0, 152, 51, 255 },
{ 255, 255, 255, 255 }, { 203, 255, 255, 255 }, { 203, 255, 203, 255 },
{ 203, 255, 152, 255 }, { 203, 255, 102, 255 }, { 203, 255, 51, 255 },
{ 203, 255, 0, 255 }, { 152, 255, 255, 255 }, { 152, 255, 203, 255 },
{ 152, 255, 152, 255 }, { 152, 255, 102, 255 }, { 152, 255, 51, 255 },
{ 152, 255, 0, 255 }, { 102, 255, 255, 255 }, { 102, 255, 203, 255 },
{ 102, 255, 152, 255 }, { 102, 255, 102, 255 }, { 102, 255, 51, 255 },
{ 102, 255, 0, 255 }, { 51, 255, 255, 255 }, { 51, 255, 203, 255 },
{ 51, 255, 152, 255 }, { 51, 255, 102, 255 }, { 51, 255, 51, 255 },
{ 51, 255, 0, 255 }, { 255, 152, 255, 255 }, { 255, 152, 203, 255 },
{ 255, 152, 152, 255 }, { 255, 152, 102, 255 }, { 255, 152, 51, 255 },
{ 255, 152, 0, 255 }, { 0, 102, 255, 255 }, { 0, 102, 203, 255 },
{ 203, 203, 255, 255 }, { 203, 203, 203, 255 }, { 203, 203, 152, 255 },
{ 203, 203, 102, 255 }, { 203, 203, 51, 255 }, { 203, 203, 0, 255 },
{ 152, 203, 255, 255 }, { 152, 203, 203, 255 }, { 152, 203, 152, 255 },
{ 152, 203, 102, 255 }, { 152, 203, 51, 255 }, { 152, 203, 0, 255 },
{ 102, 203, 255, 255 }, { 102, 203, 203, 255 }, { 102, 203, 152, 255 },
{ 102, 203, 102, 255 }, { 102, 203, 51, 255 }, { 102, 203, 0, 255 },
{ 51, 203, 255, 255 }, { 51, 203, 203, 255 }, { 51, 203, 152, 255 },
{ 51, 203, 102, 255 }, { 51, 203, 51, 255 }, { 51, 203, 0, 255 },
{ 255, 102, 255, 255 }, { 255, 102, 203, 255 }, { 255, 102, 152, 255 },
{ 255, 102, 102, 255 }, { 255, 102, 51, 255 }, { 255, 102, 0, 255 },
{ 0, 102, 152, 255 }, { 0, 102, 102, 255 }, { 203, 152, 255, 255 },
{ 203, 152, 203, 255 }, { 203, 152, 152, 255 }, { 203, 152, 102, 255 },
{ 203, 152, 51, 255 }, { 203, 152, 0, 255 }, { 152, 152, 255, 255 },
{ 152, 152, 203, 255 }, { 152, 152, 152, 255 }, { 152, 152, 102, 255 },
{ 152, 152, 51, 255 }, { 152, 152, 0, 255 }, { 102, 152, 255, 255 },
{ 102, 152, 203, 255 }, { 102, 152, 152, 255 }, { 102, 152, 102, 255 },
{ 102, 152, 51, 255 }, { 102, 152, 0, 255 }, { 51, 152, 255, 255 },
{ 51, 152, 203, 255 }, { 51, 152, 152, 255 }, { 51, 152, 102, 255 },
{ 51, 152, 51, 255 }, { 51, 152, 0, 255 }, { 230, 134, 0, 255 },
{ 255, 51, 203, 255 }, { 255, 51, 152, 255 }, { 255, 51, 102, 255 },
{ 255, 51, 51, 255 }, { 255, 51, 0, 255 }, { 0, 102, 51, 255 },
{ 0, 102, 0, 255 }, { 203, 102, 255, 255 }, { 203, 102, 203, 255 },
{ 203, 102, 152, 255 }, { 203, 102, 102, 255 }, { 203, 102, 51, 255 },
{ 203, 102, 0, 255 }, { 152, 102, 255, 255 }, { 152, 102, 203, 255 },
{ 152, 102, 152, 255 }, { 152, 102, 102, 255 }, { 152, 102, 51, 255 },
{ 152, 102, 0, 255 }, { 102, 102, 255, 255 }, { 102, 102, 203, 255 },
{ 102, 102, 152, 255 }, { 102, 102, 102, 255 }, { 102, 102, 51, 255 },
{ 102, 102, 0, 255 }, { 51, 102, 255, 255 }, { 51, 102, 203, 255 },
{ 51, 102, 152, 255 }, { 51, 102, 102, 255 }, { 51, 102, 51, 255 },
{ 51, 102, 0, 255 }, { 255, 0, 255, 255 }, { 255, 0, 203, 255 },
{ 255, 0, 152, 255 }, { 255, 0, 102, 255 }, { 255, 0, 51, 255 },
{ 255, 175, 19, 255 }, { 0, 51, 255, 255 }, { 0, 51, 203, 255 },
{ 203, 51, 255, 255 }, { 203, 51, 203, 255 }, { 203, 51, 152, 255 },
{ 203, 51, 102, 255 }, { 203, 51, 51, 255 }, { 203, 51, 0, 255 },
{ 152, 51, 255, 255 }, { 152, 51, 203, 255 }, { 152, 51, 152, 255 },
{ 152, 51, 102, 255 }, { 152, 51, 51, 255 }, { 152, 51, 0, 255 },
{ 102, 51, 255, 255 }, { 102, 51, 203, 255 }, { 102, 51, 152, 255 },
{ 102, 51, 102, 255 }, { 102, 51, 51, 255 }, { 102, 51, 0, 255 },
{ 51, 51, 255, 255 }, { 51, 51, 203, 255 }, { 51, 51, 152, 255 },
{ 51, 51, 102, 255 }, { 51, 51, 51, 255 }, { 51, 51, 0, 255 },
{ 255, 203, 102, 255 }, { 255, 203, 152, 255 }, { 255, 203, 203, 255 },
{ 255, 203, 255, 255 }, { 0, 51, 152, 255 }, { 0, 51, 102, 255 },
{ 0, 51, 51, 255 }, { 0, 51, 0, 255 }, { 203, 0, 255, 255 },
{ 203, 0, 203, 255 }, { 203, 0, 152, 255 }, { 203, 0, 102, 255 },
{ 203, 0, 51, 255 }, { 255, 227, 70, 255 }, { 152, 0, 255, 255 },
{ 152, 0, 203, 255 }, { 152, 0, 152, 255 }, { 152, 0, 102, 255 },
{ 152, 0, 51, 255 }, { 152, 0, 0, 255 }, { 102, 0, 255, 255 },
{ 102, 0, 203, 255 }, { 102, 0, 152, 255 }, { 102, 0, 102, 255 },
{ 102, 0, 51, 255 }, { 102, 0, 0, 255 }, { 51, 0, 255, 255 },
{ 51, 0, 203, 255 }, { 51, 0, 152, 255 }, { 51, 0, 102, 255 },
{ 51, 0, 51, 255 }, { 51, 0, 0, 255 }, { 255, 203, 51, 255 },
{ 255, 203, 0, 255 }, { 255, 255, 0, 255 }, { 255, 255, 51, 255 },
{ 255, 255, 102, 255 }, { 255, 255, 152, 255 }, { 255, 255, 203, 255 },
{ 255, 255, 255, 255 }
};
// color_distance
/*! \brief Returns the "distance" between two RGB colors.
This functions defines an metric on the RGB color space. The distance
between two colors is 0, if and only if the colors are equal.
\param red1 Red component of the first color.
\param green1 Green component of the first color.
\param blue1 Blue component of the first color.
\param red2 Red component of the second color.
\param green2 Green component of the second color.
\param blue2 Blue component of the second color.
\return The distance between the given colors.
*/
static inline
unsigned
color_distance(uint8 red1, uint8 green1, uint8 blue1,
uint8 red2, uint8 green2, uint8 blue2)
{
// euklidian distance (its square actually)
int rd = (int)red1 - (int)red2;
int gd = (int)green1 - (int)green2;
int bd = (int)blue1 - (int)blue2;
// return rd * rd + gd * gd + bd * bd;
// distance according to psycho-visual tests
int rmean = ((int)red1 + (int)red2) / 2;
return (((512 + rmean) * rd * rd) >> 8)
+ 4 * gd * gd
+ (((767 - rmean) * bd * bd) >> 8);
}
static void
FillColorMap(const rgb_color *palette, color_map *map)
{
memcpy(map->color_list, palette, sizeof(map->color_list));
// init index map
for (int32 color = 0; color < 32768; color++) {
// get components
uint8 red = (color & 0x7c00) >> 7;
uint8 green = (color & 0x3e0) >> 2;
uint8 blue = (color & 0x1f) << 3;
red |= red >> 5;
green |= green >> 5;
blue |= blue >> 5;
// find closest color
uint8 closestIndex = 0;
unsigned closestDistance = UINT_MAX;
for (int32 i = 0; i < 256; i++) {
const rgb_color &c = map->color_list[i];
unsigned distance = color_distance(red, green, blue,
c.red, c.green, c.blue);
if (distance < closestDistance) {
closestIndex = i;
closestDistance = distance;
}
}
map->index_map[color] = closestIndex;
}
// TODO: Inversion map
}
void
InitializeColorMap()
{
FillColorMap(kSystemPalette, &sColorMap);
}
const rgb_color *
SystemPalette()
{
return sColorMap.color_list;
}
const color_map *
SystemColorMap()
{
return &sColorMap;
}