stretch_up_down_88.h

来自「Linux操作系统的著名硬件加速绘图API软件。可以利用网卡提供的硬件加速功能完」· C头文件 代码 · 共 73 行

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#define POINT_0               hfraq#define LINE_0                vfraq#define MINUS_1               0#define POINT_TO_RATIO(p,ps)  ( (((((p)) & 0x3ffff) ? : 0x40000) << 8) / (ps) )#define LINE_TO_RATIO(l,ls)   ( (((((l)) & 0x3ffff) ? : 0x40000) << 8) / (ls) )#define POINT_L(p,ps)  ( (((p)-1) >> 18) - 1 )#define POINT_R(p,ps)  ( (((p)-1) >> 18) )#define LINE_T(l,ls)  ( (((l)-1) >> 18) - 1 )#define LINE_B(l,ls)  ( (((l)-1) >> 18) )static void FUNC_NAME(down)( void       *dst,                             int         dpitch,                             const void *src,                             int         spitch,                             int         width,                             int         height,                             int         dst_width,                             int         dst_height,                             DFBRegion  *clip ){#include "stretch_hvx_88.h"}#undef POINT_0#undef LINE_0#undef MINUS_1#undef POINT_TO_RATIO#undef LINE_TO_RATIO#undef POINT_L#undef POINT_R#undef LINE_T#undef LINE_B/**********************************************************************************************************************/#define POINT_0               0#define LINE_0                0#define MINUS_1               1#define POINT_TO_RATIO(p,ps)  ( ((p) & 0x3ffff) >> (18-8) )#define LINE_TO_RATIO(l,ls)   ( ((l) & 0x3ffff) >> (18-8) )#define POINT_L(p,ps)  ( (((p)) >> 18) )#define POINT_R(p,ps)  ( (((p)) >> 18) + 1 )#define LINE_T(l,ls)  ( (((l)) >> 18) )#define LINE_B(l,ls)  ( (((l)) >> 18) + 1 )static void FUNC_NAME(up)( void       *dst,                           int         dpitch,                           const void *src,                           int         spitch,                           int         width,                           int         height,                           int         dst_width,                           int         dst_height,                           DFBRegion  *clip ){#include "stretch_hvx_88.h"}#undef POINT_0#undef LINE_0#undef MINUS_1#undef POINT_TO_RATIO#undef LINE_TO_RATIO#undef POINT_L#undef POINT_R#undef LINE_T#undef LINE_B

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