forked from KolibriOS/kolibrios
104 lines
2.0 KiB
C++
104 lines
2.0 KiB
C++
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char tmp_cursor[4096];
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cursor_t *create_cursor(u32 pid, void *src, u32 flags)
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{
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void *img;
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cursor_t *cursor = (cursor_t*)CreateObject(pid, 32);
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if(cursor==NULL)
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return 0;
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dbgprintf("create object at %x\n", cursor);
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cursor->magic = 0x53525543;
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cursor->destroy = __destroy_cursor;
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img = rhd_mem_alloc(&rhd,RHD_MEM_FB,64*64*4);
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if(img==NULL)
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goto cleanup;
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dbgprintf("alloc video memory at %x size %x\n",img,64*64*4);
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dbgprintf("offset %x\n", img-rhd.FbBase);
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cursor->base=img;
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if( (u16)flags==LOAD_INDIRECT){
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cursor->hot_x = (u8)(flags>>24);
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cursor->hot_y = (u8)(flags>>16);
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asm __volatile__
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(
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"cld \n\t"
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"rep stosl"
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:
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:"a"(0),"c"(64*64),"D"(img)
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);
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asm __volatile__
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(
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"1: "
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"movl $32, %%ecx \n\t"
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"rep stosl \n\t"
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"addl $128, %%edi \n\t"
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"decl %%ebx \n\t"
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"jnz 1b"
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:
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:"b"(32),"S"(src),"D"(img)
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);
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}
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else {
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cursor->hot_x = *(u16*)((char*)src+10);
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cursor->hot_y = *(u16*)((char*)src+12);
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copy_cursor(img, src);
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dbgprintf("cursor loaded\n");
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}
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return cursor;
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cleanup:
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DestroyObject(cursor);
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return NULL;
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};
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void destroy_cursor(cursor_t *cursor)
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{
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if(cursor->base)
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rhd_mem_free(&rhd,RHD_MEM_FB,cursor->base);
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DestroyObject(cursor);
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}
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void __stdcall r500_SelectCursor(cursor_t *cursor)
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{
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CARD32 base;
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base = (CARD32)cursor->base - rhd.FbBase;
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asm __volatile__
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(
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"cli"
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);
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OUTREG (D1CUR_SURFACE_ADDRESS, rhd.FbIntAddress+base);
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OUTREG (D1CUR_HOT_SPOT, (cursor->hot_x<<16)|(cursor->hot_y&0xFFFF));
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asm __volatile__
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(
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"sti"
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);
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}
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void __stdcall r500_SetCursor(cursor_t *cursor, int x, int y)
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{
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CARD32 tmp = (x<<16)|(y & 0xFFFF) ;
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asm __volatile__
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(
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"pushfl \n\t"
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"cli"
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);
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OUTREG(D1CUR_POSITION, tmp);
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OUTREG(D1CUR_CONTROL, 0x301);
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asm __volatile__
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(
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"popfl"
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);
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}
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void __stdcall r500_CursorRestore(int x, int y)
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{};
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