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128 lines
3.5 KiB
128 lines
3.5 KiB
5 years ago
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#ifndef f_VD2_PLUGIN_VDVIDEOUTIL_H
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#define f_VD2_PLUGIN_VDVIDEOUTIL_H
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template<class T>
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T *vd_ptroffset(T *p, diff)
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return (T *)((char *)p + diff)
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template<class T>
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class vd_row_iter
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public:
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vd_row_iter() {
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vd_row_iter(T *p, pitch) : mp(p), mpitch(pitch) {
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vd_row_iter(T *p, pitch, y) : mp(vd_ptroffset(p, pitch*y)), mpitch(pitch) {
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vd_row_iter( VFBitmap& bm, x = 0, y = 0) : mp(vd_ptroffset((T*)bm.data, bm.pitch*(bm.h - 1 - y))+x), mpitch(-bm.pitch) {
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operator T*()
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return mp
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T& operator[](int x)
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return mp[x]
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void mulstep(int x)
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mpitch *= x
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vd_row_iter<T>& operator+=(int y)
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mp = vd_ptroffset(mp, * y)
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return *self
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vd_row_iter<T>& operator-=(int y)
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mp = vd_ptroffset(mp, -(mpitch * y))
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return *self
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vd_row_iter<T>& operator++()
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mp = vd_ptroffset(mp, mpitch)
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return *self
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vd_row_iter<T> operator++(int)
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vd_row_iter<T> temp(*self)
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mp = vd_ptroffset(mp, mpitch)
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return temp
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vd_row_iter<T>& operator--()
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mp = vd_ptroffset(mp, -mpitch)
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return *self
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vd_row_iter<T> operator--(int)
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vd_row_iter<T> temp(*self)
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mp = vd_ptroffset(mp, -mpitch)
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return temp
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protected:
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T *mp
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ptrdiff_t mpitch
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typedef vd_row_iter<uint32> vd_pixrow_iter
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inline uint32 vd_pixavg_down(uint32 x, y)
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return (x&y) + (((x^y)&0xfefefefe)>>1)
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inline uint32 vd_pixavg_up(uint32 x, y)
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return (x|y) - (((x^y)&0xfefefefe)>>1)
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inline void vd_pixunpack(uint32 px, r, g, b)
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r = (px>>16)&255
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g = (px>> 8)&255
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b = (px )&255
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inline uint32 vd_pixpack(int r, g, b)
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if ((unsigned)r >= 256) r = ~(r>>31) & 255
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if ((unsigned)g >= 256) g = ~(g>>31) & 255
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if ((unsigned)b >= 256) b = ~(b>>31) & 255
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return (r<<16) + (g<<8) + b
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inline uint32 vd_pixpackfast(int r, g, b)
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return (r<<16) + (g<<8) + b
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struct vd_transform_pixmap_helper
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vd_transform_pixmap_helper( VFBitmap& dst)
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: p((uint32 *)dst.data)
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, pitch(dst.pitch)
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, w(dst.w)
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, h(dst.h) {
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operator bool()
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return False
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uint32 *p
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ptrdiff_t pitch
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int w, h
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#define vd_transform_pixmap_blt(dst, src) \
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if(dstinfo = dst);else \
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if(srcinfo = src);else \
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for(y = 0, h = dstinfo.h, w = dstinfo.w; y < h; ++y, dstinfo.p=vd_ptroffset(dstinfo.p, dstinfo.pitch), srcinfo.p=vd_ptroffset(srcinfo.p, srcinfo.pitch)) \
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for(x = 0; x < dstinfo.w; ++x) \
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switch(out = dstinfo.p[x]) case 0: default: \
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switch( in = srcinfo.p[x]) case 0: default:
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#define vd_transform_pixmap_inplace(dst) \
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if(dstinfo = dst);else \
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for(y = 0, h = dstinfo.h, w = dstinfo.w; y < h; ++y, dstinfo.p=vd_ptroffset(dstinfo.p, dstinfo.pitch)) \
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for(x = 0; x < dstinfo.w; ++x) \
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switch(px = dstinfo.p[x]) case 0: default: \
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#define vd_maketable256_16(x) formula((x+0)),formula((x+1)),formula((x+2)),formula((x+3)),formula((x+4)),formula((x+5)),formula((x+6)),formula((x+7)),formula((x+8)),formula((x+9)),formula((x+10)),formula((x+11)),formula((x+12)),formula((x+13)),formula((x+14)),formula((x+15))
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#define vd_maketable256 vd_maketable256_16(0x00),vd_maketable256_16(0x10),vd_maketable256_16(0x20),vd_maketable256_16(0x30),vd_maketable256_16(0x40),vd_maketable256_16(0x50),vd_maketable256_16(0x60),vd_maketable256_16(0x70),vd_maketable256_16(0x80),vd_maketable256_16(0x90),vd_maketable256_16(0xA0),vd_maketable256_16(0xB0),vd_maketable256_16(0xC0),vd_maketable256_16(0xD0),vd_maketable256_16(0xE0),vd_maketable256_16(0xF0),
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#endif
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