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sm501: Use values from the pitch register for 2D operations

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Before, crt_h_total was used for src_width and dst_width. This is a
property of the current display setting and not relevant for the 2D
operation that also can be done off-screen. The pitch register's purpose
is to describe line pitch relevant of the 2D operation.

Signed-off-by: Sebastian Bauer <mail@sebastianbauer.info>
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Sebastian Bauer 2018-07-04 11:40:58 +02:00 committed by David Gibson
parent d27335592a
commit 54b2a4339c
1 changed files with 2 additions and 2 deletions
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4
hw/display/sm501.c
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@ -709,8 +709,8 @@ static void sm501_2d_operation(SM501State *s)
/* get frame buffer info */ /* get frame buffer info */
uint8_t *src = s->local_mem + (s->twoD_source_base & 0x03FFFFFF); uint8_t *src = s->local_mem + (s->twoD_source_base & 0x03FFFFFF);
uint8_t *dst = s->local_mem + (s->twoD_destination_base & 0x03FFFFFF); uint8_t *dst = s->local_mem + (s->twoD_destination_base & 0x03FFFFFF);
int src_width = (s->dc_crt_h_total & 0x00000FFF) + 1; int src_width = s->twoD_pitch & 0x1FFF;
int dst_width = (s->dc_crt_h_total & 0x00000FFF) + 1; int dst_width = (s->twoD_pitch >> 16) & 0x1FFF;
if (addressing != 0x0) { if (addressing != 0x0) {
printf("%s: only XY addressing is supported.\n", __func__); printf("%s: only XY addressing is supported.\n", __func__);