diff options
| -rw-r--r-- | hw/display/sm501.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/hw/display/sm501.c b/hw/display/sm501.c index d4878f01c0..0b44d95169 100644 --- a/hw/display/sm501.c +++ b/hw/display/sm501.c @@ -705,6 +705,8 @@ static void sm501_2d_operation(SM501State *s) uint32_t color = s->twoD_foreground; int format_flags = (s->twoD_stretch >> 20) & 0x3; int addressing = (s->twoD_stretch >> 16) & 0xF; + int rop_mode = (s->twoD_control >> 15) & 0x1; /* 1 for rop2, else rop3 */ + int rop = s->twoD_control & 0xFF; /* get frame buffer info */ uint8_t *src = s->local_mem + (s->twoD_source_base & 0x03FFFFFF); @@ -729,6 +731,8 @@ static void sm501_2d_operation(SM501State *s) int y, x, index_d, index_s; \ for (y = 0; y < operation_height; y++) { \ for (x = 0; x < operation_width; x++) { \ + _pixel_type val; \ + \ if (rtl) { \ index_s = ((src_y - y) * src_width + src_x - x) * _bpp; \ index_d = ((dst_y - y) * dst_width + dst_x - x) * _bpp; \ @@ -736,7 +740,13 @@ static void sm501_2d_operation(SM501State *s) index_s = ((src_y + y) * src_width + src_x + x) * _bpp; \ index_d = ((dst_y + y) * dst_width + dst_x + x) * _bpp; \ } \ - *(_pixel_type *)&dst[index_d] = *(_pixel_type *)&src[index_s];\ + if (rop_mode == 1 && rop == 5) { \ + /* Invert dest */ \ + val = ~*(_pixel_type *)&dst[index_d]; \ + } else { \ + val = *(_pixel_type *)&src[index_s]; \ + } \ + *(_pixel_type *)&dst[index_d] = val; \ } \ } \ } |