From c47666d42f7972e1b51f9de61ce0fa27c72f3127 Mon Sep 17 00:00:00 2001
From: austriancoder <austriancoder>
Date: Thu, 5 Aug 2004 23:05:21 +0000
Subject: initial import

---
 dxr3palettemanager.c | 114 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 114 insertions(+)
 create mode 100644 dxr3palettemanager.c

(limited to 'dxr3palettemanager.c')

diff --git a/dxr3palettemanager.c b/dxr3palettemanager.c
new file mode 100644
index 0000000..0769722
--- /dev/null
+++ b/dxr3palettemanager.c
@@ -0,0 +1,114 @@
+/*
+ * 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"
+
+// ================================== 
+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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