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/*
* dxr3palettemanager.c:
*
* See the main source file 'dxr3.c' for copyright information and
* how to reach the author.
*
*/
/*
ToDo:
- cDxr3PaletteManager: Should we use here std::vector?
*/
#include <string.h>
#include "dxr3palettemanager.h"
#include "dxr3tools.h"
// ==================================
//! constructor
cDxr3PaletteManager::cDxr3PaletteManager()
{
memset(m_colors, 0, sizeof(int) * MAX_COLORS);
memset(m_users, 0, sizeof(int) * MAX_COLORS);
memset(m_pal, 0, sizeof(int) * MAX_COLORS);
m_changed = false;
};
// ==================================
void cDxr3PaletteManager::AddColor(int color)
{
int freeIndex = MAX_COLORS;
bool found = false;
for (int i = 0; i < MAX_COLORS && !found; ++i)
{
if (color == m_colors[i])
{
if (m_users[i] == 0) m_changed = true;
++m_users[i];
found = true;
}
if (m_users[i] == 0 && freeIndex >= MAX_COLORS)
{
freeIndex = i;
}
}
if (!found && freeIndex < MAX_COLORS)
{
m_colors[freeIndex] = color;
m_users[freeIndex] = 1;
m_changed = true;
}
}
// ==================================
void cDxr3PaletteManager::RemoveColor(int color)
{
bool found = false;
for (int i = 0; i < MAX_COLORS && !found; ++i)
{
if (color == m_colors[i])
{
if (m_users[i] > 0) --m_users[i];
found = true;
}
}
}
// ==================================
int cDxr3PaletteManager::GetIndex(int color)
{
bool found = false;
int index = 0;
for (int i = 0; i < MAX_COLORS && !found; ++i)
{
if (color == m_colors[i])
{
index = i;
found = true;
}
}
return index;
}
// ==================================
int cDxr3PaletteManager::GetCount()
{
return MAX_COLORS;
}
// ==================================
int cDxr3PaletteManager::operator[](int index)
{
assert(index < MAX_COLORS && index > 0);
return m_colors[index];
}
// ==================================
bool cDxr3PaletteManager::HasChanged()
{
bool retval = m_changed;
m_changed = false;
return retval;
}
// ==================================
uint32_t* cDxr3PaletteManager::GetPalette()
{
for (int i = 0; i < MAX_COLORS; ++i)
{
m_pal[i] = Tools::Rgb2YCrCb(m_colors[i]);
}
return m_pal;
}
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