KolibriOS/kolibrios
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16bpp support for f73 (blitter)

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git-svn-id: svn://kolibrios.org@5161 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
hidnplayr 2014-11-03 15:12:21 +00:00
parent 6a4e004d0f
commit b71a661bfc
1 changed files with 73 additions and 1 deletions
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74
kernel/trunk/video/blitter.inc
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@ -402,6 +402,9 @@ align 4
ret
.core_24:
cmp [_display.bits_per_pixel], 24
jne .core_16
lea ebx, [ebx+ebx*2]
lea edi, [LFB_BASE+edi+ebx]
mov ebx, [CURRENT_TASK]
@ -413,7 +416,7 @@ align 4
align 4
.inner24:
cmp [ebp+ecx], bl
cmp [ebp+ecx], bl ; Does the process own this pixel?
jne .skip_1
;--------------------------------------
push eax
@ -465,3 +468,72 @@ align 4
jnz .outer24
jmp .done
.core_16:
lea edi, [LFB_BASE+edi+ebx*2]
mov ebx, [CURRENT_TASK]
align 4
.outer16:
mov [esp+.extra_var1], edi
xor ecx, ecx
align 4
.inner16:
cmp [ebp+ecx], bl ; Does the process own this pixel?
jne .skip_2
;--------------------------------------
push eax
mov eax, [esi+ecx*4]
; check for hardware cursor
cmp [_display.select_cursor], select_cursor
je @f
cmp [_display.select_cursor], 0
jne .no_mouseunder_2
;--------------------------------------
align 4
@@:
push ecx
mov ecx, [esp+4]
ror ecx, 16
sub ecx, edx
rol ecx, 16
sub ecx, [esp+BLITTER.h + 8]
; check mouse area for putpixel
call [_display.check_mouse]
pop ecx
;--------------------------------------
align 4
.no_mouseunder_2:
; convert to 16 bpp and store to LFB
and eax, 00000000111110001111110011111000b
shr ah, 2
shr ax, 3
ror eax, 8
add al, ah
rol eax, 8
mov [edi+ecx*2], ax
pop eax
;--------------------------------------
align 4
.skip_2:
mov edi, [esp+.extra_var1]
inc ecx
dec edx
jnz .inner16
add esi, [esp+BLITTER.stride]
add edi, [_display.pitch]
add ebp, [_display.width]
mov edx, [esp+BLITTER.w]
dec [esp+BLITTER.h]
jnz .outer16
jmp .done