kolibrios/programs/media/scrshoot/gp.inc

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macro use_gp
{
;esi - screen size
;edi - pointer to image
csi_width equ [esi+2]
csi_height equ [esi]
csi_bitspp equ [esi+4]
csi_bytesps equ [esi+6]
copy_screen_to_image:
pusha
xor edx,edx
xor ecx,ecx
xor ebx,ebx
cmp csi_bitspp,word 24
je .next_str_24
.next_str_32:
push edx ebx
xor ebx,ebx
@@:
;push eax
mov eax,[gs:edx]
mov [edi+ecx],ax
shr eax,8
mov [edi+ecx+2],ah
;pop eax
add ecx,3
add edx,4;eax
inc bx
cmp bx,csi_width
jl @b
pop ebx edx
add edx,csi_bytesps
inc bx
cmp bx,csi_height
jl .next_str_32
popa
ret
.next_str_24:
push edx ebx
xor ebx,ebx
@@:
;push eax
mov eax,[gs:edx]
mov [edi+ecx],ax
shr eax,8
mov [edi+ecx+2],ah
;pop eax
add ecx,3
add edx,3;eax
inc bx
cmp bx,csi_width
jl @b
pop ebx edx
add edx,csi_bytesps
inc bx
cmp bx,csi_height
jl .next_str_24
popa
ret
}