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haiku/src/servers/app/SystemPalette.cpp
Ingo Weinhold 758b1d0e05 Fixes that make Haiku build with gcc 4. Mainly out of the following 
categories:
* Missing includes (like <stdlib.h> and <string.h>).
* Linking against $(TARGET_LIBSTDC++) instead of libstdc++.r4.so.
* Local variables shadowing parameters.
* Default parameters in function definitions (as opposed to function
  declarations).
* All C++ stuff (nothrow, map, set, vector, min, max,...) must be imported
  explicitly from the std:: namespace now.
* "new (sometype)[...]" must read "new sometype[...]", even if sometype is
  something like "const char *".
* __FUNCTION__ is no longer a string literal (but a string expression), i.e.
  'printf(__FUNCTION__ ": ...\n")' is invalid code.
* A type cast results in a non-lvalue. E.g. "(char *)buffer += bytes"
  is an invalid expression.
* "friend class SomeClass" only works when SomeClass is known before.
  Otherwise the an inner class with that name is considered as friend.
  gcc 4 is much pickier about scopes.
* gcc 4 is generally stricter with respect to type conversions in C.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14878 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-11-12 23:27:14 +00:00

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//------------------------------------------------------------------------------
// Copyright (c) 2001-2005, 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
// Authors: DarkWyrm <bpmagic@columbus.rr.com>
// Stefano Ceccherini <burton666@libero.it>
// Description: Methods to initialize and get the system color_map.
//
//------------------------------------------------------------------------------
#include <stdio.h>
#include <string.h>
#include <SystemPalette.h>
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, 0 } // B_TRANSPARENT_MAGIC_CMAP8
};
// TODO: BWindowScreen has a method to set the palette.
// maybe we should have a lock to protect this variable.
static color_map sColorMap;
// 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)
{
int rd = (int)red1 - (int)red2;
int gd = (int)green1 - (int)green2;
int bd = (int)blue1 - (int)blue2;
// distance according to psycho-visual tests
// algorithm taken from here:
// http://www.stud.uni-hannover.de/~michaelt/juggle/Algorithms.pdf
int rmean = ((int)red1 + (int)red2) / 2;
return (((512 + rmean) * rd * rd) >> 8)
+ 4 * gd * gd
+ (((767 - rmean) * bd * bd) >> 8);
}
static inline uint8
FindClosestColor(const rgb_color &color, const rgb_color *palette)
{
uint8 closestIndex = 0;
unsigned closestDistance = UINT_MAX;
for (int32 i = 0; i < 256; i++) {
const rgb_color &c = palette[i];
unsigned distance = color_distance(color.red, color.green, color.blue,
c.red, c.green, c.blue);
if (distance < closestDistance) {
closestIndex = (uint8)i;
closestDistance = distance;
}
}
return closestIndex;
}
static inline rgb_color
InvertColor(const rgb_color &color)
{
// For some reason, Inverting (255, 255, 255) on beos
// results in the same color.
if (color.red == 255 && color.green == 255
&& color.blue == 255)
return color;
rgb_color inverted;
inverted.red = 255 - color.red;
inverted.green = 255 - color.green;
inverted.blue = 255 - color.blue;
inverted.alpha = 255;
return inverted;
}
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
rgb_color rgbColor;
rgbColor.red = (color & 0x7c00) >> 7;
rgbColor.green = (color & 0x3e0) >> 2;
rgbColor.blue = (color & 0x1f) << 3;
map->index_map[color] = FindClosestColor(rgbColor, palette);
}
// init inversion map
for (int32 index = 0; index < 256; index++) {
rgb_color inverted = InvertColor(map->color_list[index]);
map->inversion_map[index] = FindClosestColor(inverted, palette);
}
}
/*! \brief Initializes the system color_map.
*/
void
InitializeColorMap()
{
FillColorMap(kSystemPalette, &sColorMap);
}
/*! \brief Returns a pointer to the system palette.
\return A pointer to the system palette.
*/
const rgb_color *
SystemPalette()
{
return sColorMap.color_list;
}
/*! \brief Returns a pointer to the system color_map structure.
\return A pointer to the system color_map.
*/
const color_map *
SystemColorMap()
{
return &sColorMap;
}
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