Subversion Repositories Kolibri OS

align 4

syscall_getarea:

;eax = 36

;ebx = pointer to bufer for img BBGGRRBBGGRR... 

;ecx = [size x]*65536 + [size y] 

;edx = [start x]*65536 + [start y] 

     pushad

     mov   edi,ebx

     mov   eax,edx

     shr   eax,16

     mov   ebx,edx

     and   ebx,0xffff

     ; eax - x, ebx - y

     mov   edx,ecx

     shr   ecx,16

     and   edx,0xffff

     mov   esi,ecx

     ; ecx - size x, edx - size y

.start_y:

     push  ecx

.start_x:

     push  eax ebx ecx edx  esi edi

     add   eax,ecx

     add   ebx,edx

     call  dword [GETPIXEL] ; eax - x, ebx - y

     pop   edi esi

     mov   eax,ecx

     pop   edx  ecx

     push  ecx  edx

     dec   edx

     lea   edx,[edx*3]

     imul  edx,esi

     dec   ecx

     lea   ecx,[ecx*3]

     add   edx,ecx

     add   edx,edi

     mov   [edx],ax

     shr   eax,16

     mov   [edx+2],al

     pop   edx ecx ebx eax 

     dec   ecx

     jnz   .start_x

     pop   ecx

     dec   edx

     jnz   .start_y

     popad