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-rw-r--r--hw/display/sm501.c19
1 files changed, 16 insertions, 3 deletions
diff --git a/hw/display/sm501.c b/hw/display/sm501.c
index 3ced2c42db..2098e69810 100644
--- a/hw/display/sm501.c
+++ b/hw/display/sm501.c
@@ -794,6 +794,14 @@ static void sm501_2d_operation(SM501State *s)
src_x == dst_x && src_y == dst_y) {
break;
}
+ /* Some clients also do 1 pixel blits, avoid overhead for these */
+ if (width == 1 && height == 1) {
+ unsigned int si = (src_x + src_y * src_pitch) * bypp;
+ unsigned int di = (dst_x + dst_y * dst_pitch) * bypp;
+ stn_he_p(&s->local_mem[dst_base + di], bypp,
+ ldn_he_p(&s->local_mem[src_base + si], bypp));
+ break;
+ }
/* Check for overlaps, this could be made more exact */
uint32_t sb, se, db, de;
sb = src_base + src_x + src_y * (width + src_pitch);
@@ -842,9 +850,14 @@ static void sm501_2d_operation(SM501State *s)
color = cpu_to_le16(color);
}
- pixman_fill((uint32_t *)&s->local_mem[dst_base],
- dst_pitch * bypp / sizeof(uint32_t),
- 8 * bypp, dst_x, dst_y, width, height, color);
+ if (width == 1 && height == 1) {
+ unsigned int i = (dst_x + dst_y * dst_pitch) * bypp;
+ stn_he_p(&s->local_mem[dst_base + i], bypp, color);
+ } else {
+ pixman_fill((uint32_t *)&s->local_mem[dst_base],
+ dst_pitch * bypp / sizeof(uint32_t),
+ 8 * bypp, dst_x, dst_y, width, height, color);
+ }
break;
}
default: