forked from KolibriOS/kolibrios
53 lines
1020 B
C
53 lines
1020 B
C
#include <SDL.h>
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#include <stdlib.h>
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#include <string.h>
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#define asm_inline __asm__ __volatile__
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#pragma pack(push,1)
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typedef union{
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unsigned val;
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struct{
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short h;
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short w;
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};
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}ksys_screen_t;
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#pragma pack(pop)
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static inline
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void _ksys_change_window(int new_x, int new_y, int new_w, int new_h)
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{
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asm_inline(
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"int $0x40"
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::"a"(67), "b"(new_x), "c"(new_y), "d"(new_w),"S"(new_h)
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);
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}
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static inline
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ksys_screen_t _ksys_screen_size()
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{
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ksys_screen_t size;
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asm_inline(
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"int $0x40"
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:"=a"(size)
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:"a"(14)
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:"memory"
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);
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return size;
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}
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void uSDL_SetWinCenter(unsigned w, unsigned h){
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ksys_screen_t screen_size= _ksys_screen_size();
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int new_x = screen_size.w/2-w/2;
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int new_y = screen_size.h/2-h/2;
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_ksys_change_window(new_x, new_y, -1, -1);
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}
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void uSDL_Delay(unsigned ms){
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unsigned start = SDL_GetTicks();
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do{
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asm_inline("int $0x40" :: "a"(5),"b"(1));
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}while (SDL_GetTicks()-start < ms);
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} |