88 lines
1.9 KiB
C++
88 lines
1.9 KiB
C++
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// This code is in the public domain -- castanyo@yahoo.es
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#pragma once
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#ifndef NV_IMAGE_BITMAP_H
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#define NV_IMAGE_BITMAP_H
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#include "nvimage.h"
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#include "nvcore/BitArray.h"
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namespace nv
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{
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/// Bit map. This should probably be called BitImage.
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class NVIMAGE_CLASS BitMap
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{
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public:
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BitMap() : m_width(0), m_height(0) {}
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BitMap(uint w, uint h) : m_width(w), m_height(h), m_bitArray(w*h) {}
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uint width() const { return m_width; }
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uint height() const { return m_height; }
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void resize(uint w, uint h, bool initValue);
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bool bitAt(uint x, uint y) const
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{
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nvDebugCheck(x < m_width && y < m_height);
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return m_bitArray.bitAt(y * m_width + x);
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}
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bool bitAt(uint idx) const
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{
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return m_bitArray.bitAt(idx);
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}
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void setBitAt(uint x, uint y)
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{
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nvDebugCheck(x < m_width && y < m_height);
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m_bitArray.setBitAt(y * m_width + x);
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}
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void setBitAt(uint idx)
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{
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m_bitArray.setBitAt(idx);
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}
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void clearBitAt(uint x, uint y)
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{
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nvDebugCheck(x < m_width && y < m_height);
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m_bitArray.clearBitAt(y * m_width + x);
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}
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void clearBitAt(uint idx)
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{
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m_bitArray.clearBitAt(idx);
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}
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void clearAll()
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{
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m_bitArray.clearAll();
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}
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void setAll()
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{
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m_bitArray.setAll();
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}
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void toggleAll()
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{
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m_bitArray.toggleAll();
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}
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friend void swap(BitMap & a, BitMap & b)
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{
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nvCheck(a.m_width == b.m_width);
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nvCheck(a.m_height == b.m_height);
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swap(a.m_bitArray, b.m_bitArray);
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}
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private:
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uint m_width;
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uint m_height;
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BitArray m_bitArray;
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};
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} // nv namespace
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#endif // NV_IMAGE_BITMAP_H
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