Skip to content

Commit

Permalink
消除闪烁（2）
Browse files Browse the repository at this point in the history
  • Loading branch information
@yourtion
yourtion committed Apr 15, 2016
1 parent 2c7fd6f commit b55a841
Show file tree
Hide file tree
Showing 2 changed files with 62 additions and 14 deletions.
2 changes: 1 addition & 1 deletion 11_day/bootpack.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -153,7 +153,7 @@ struct SHEET {
};

struct SHTCTL {
unsigned char *vram;
unsigned char *vram, *map;
int xsize, ysize, top;
struct SHEET *sheets[MAX_SHEETS];
struct SHEET sheets0[MAX_SHEETS];
Expand Down
74 changes: 61 additions & 13 deletions 11_day/sheet.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,11 @@ struct SHTCTL *shtctl_init(struct MEMMAN *memman, unsigned char *vram, int xsize
if (ctl == 0) {
goto err;
}
ctl->map = (unsigned char *) memman_alloc_4k(memman, xsize * ysize);
if (ctl->map == 0) {
memman_free_4k(memman, (int) ctl, sizeof (struct SHTCTL));
goto err;
}
ctl->vram = vram;
ctl->xsize = xsize;
ctl->ysize = ysize;
Expand Down Expand Up @@ -60,7 +65,7 @@ void sheet_updown(struct SHEET *sht, int height)
}
sht->height = height;/* 设定高度 */

/* 下面主要是进行sheets[ ]的重新排列 */
/* 下面主要是进行sheets[]的重新排列 */
if (old > height) { /* 比以前低 */
if (height >= 0) {
/* 把中间的往上提 */
Expand All @@ -69,7 +74,8 @@ void sheet_updown(struct SHEET *sht, int height)
ctl->sheets[h]->height = h;
}
ctl->sheets[height] = sht;
sheet_refreshsub(ctl, sht->vx0, sht->vy0, sht->vx0 + sht->bxsize, sht->vy0 + sht->bysize, height + 1);
sheet_refreshmap(ctl, sht->vx0, sht->vy0, sht->vx0 + sht->bxsize, sht->vy0 + sht->bysize, height + 1);
sheet_refreshsub(ctl, sht->vx0, sht->vy0, sht->vx0 + sht->bxsize, sht->vy0 + sht->bysize, height + 1, old);
} else { /* 隐藏 */
if (ctl->top > old) {
/* 把上面的降下来 */
Expand All @@ -79,8 +85,9 @@ void sheet_updown(struct SHEET *sht, int height)
}
}
ctl->top--; /* 由于显示中的图层减少了一个，所以最上面的图层高度下降 */
sheet_refreshsub(ctl, sht->vx0, sht->vy0, sht->vx0 + sht->bxsize, sht->vy0 + sht->bysize, 0);
}
sheet_refreshmap(ctl, sht->vx0, sht->vy0, sht->vx0 + sht->bxsize, sht->vy0 + sht->bysize, 0);
sheet_refreshsub(ctl, sht->vx0, sht->vy0, sht->vx0 + sht->bxsize, sht->vy0 + sht->bysize, 0, old - 1);
}
} else if (old < height) { /* 比以前高 */
if (old >= 0) {
/* 把中间的拉下去 */
Expand All @@ -98,23 +105,24 @@ void sheet_updown(struct SHEET *sht, int height)
ctl->sheets[height] = sht;
ctl->top++; /* 由于已显示的图层增加了1个，所以最上面的图层高度增加 */
}
sheet_refreshsub(ctl, sht->vx0, sht->vy0, sht->vx0 + sht->bxsize, sht->vy0 + sht->bysize, height); /* 按新图层信息重新绘制画面 */
sheet_refreshmap(ctl, sht->vx0, sht->vy0, sht->vx0 + sht->bxsize, sht->vy0 + sht->bysize, height);
sheet_refreshsub(ctl, sht->vx0, sht->vy0, sht->vx0 + sht->bxsize, sht->vy0 + sht->bysize, height, height); /* 按新图层信息重新绘制画面 */
}
return;
}

void sheet_refresh(struct SHEET *sht, int bx0, int by0, int bx1, int by1)
{
if (sht->height >= 0) { /* 如果正在显示，则按新图层的信息刷新画面*/
sheet_refreshsub(sht->ctl, sht->vx0 + bx0, sht->vy0 + by0, sht->vx0 + bx1, sht->vy0 + by1, sht->height);
sheet_refreshsub(sht->ctl, sht->vx0 + bx0, sht->vy0 + by0, sht->vx0 + bx1, sht->vy0 + by1, sht->height, sht->height);
}
return;
}

void sheet_refreshsub(struct SHTCTL *ctl, int vx0, int vy0, int vx1, int vy1, int h0)
void sheet_refreshsub(struct SHTCTL *ctl, int vx0, int vy0, int vx1, int vy1, int h0, int h1)
{
int h, bx, by, vx, vy, bx0, by0, bx1, by1;
unsigned char *buf, c, *vram = ctl->vram;
unsigned char *buf, *vram = ctl->vram, *map = ctl->map, sid;
struct SHEET *sht;

/* 如果refresh的范围超出了画面则修正 */
Expand All @@ -126,6 +134,8 @@ void sheet_refreshsub(struct SHTCTL *ctl, int vx0, int vy0, int vx1, int vy1, in
for (h = h0; h <= ctl->top; h++) {
sht = ctl->sheets[h];
buf = sht->buf;
sid = sht -ctl->sheets0;

/* 使用vx0～vy1，对bx0～by1进行倒推 */
bx0 = vx0 - sht->vx0;
by0 = vy0 - sht->vy0;
Expand All @@ -140,25 +150,63 @@ void sheet_refreshsub(struct SHTCTL *ctl, int vx0, int vy0, int vx1, int vy1, in
vy = sht->vy0 + by;
for (bx = bx0; bx < bx1; bx++) {
vx = sht->vx0 + bx;
c = buf[by * sht->bxsize + bx];
if (c != sht->col_inv) {
vram[vy * ctl->xsize + vx] = c;
if (map[vy * ctl->xsize + vx] == sid) {
vram[vy * ctl->xsize + vx] = buf[by * sht->bxsize + bx];
}
}
}
}
return;
}

void sheet_refreshmap(struct SHTCTL *ctl, int vx0, int vy0, int vx1, int vy1, int h0)
{
int h, bx, by, vx, vy, bx0, by0, bx1, by1;
unsigned char *buf, sid, *map = ctl->map;
struct SHEET *sht;

if (vx0 < 0) { vx0 = 0; }
if (vy0 < 0) { vy0 = 0; }
if (vx1 > ctl->xsize) { vx1 = ctl->xsize; }
if (vy1 > ctl->ysize) { vy1 = ctl->ysize; }

for (h = h0; h <= ctl->top; h++) {
sht = ctl->sheets[h];
sid = sht - ctl->sheets0; /* 将进行了减法计算的地址作为图层号码使用 */
buf = sht->buf;
bx0 = vx0 - sht->vx0;
by0 = vy0 - sht->vy0;
bx1 = vx1 - sht->vx0;
by1 = vy1 - sht->vy0;
if (bx0 < 0) { bx0 = 0; }
if (by0 < 0) { by0 = 0; }
if (bx1 > sht->bxsize) { bx1 = sht->bxsize; }
if (by1 > sht->bysize) { by1 = sht->bysize; }

for (by = by0; by < by1; by++) {
vy = sht->vy0 + by;
for (bx = bx0; bx < bx1; bx++) {
vx = sht->vx0 + bx;
if (buf[by * sht->bxsize + bx] != sht->col_inv) {
map[vy * ctl->xsize + vx] = sid;
}
}
}
}
return;
}

void sheet_slide(struct SHEET *sht, int vx0, int vy0)
{
struct SHTCTL *ctl = sht->ctl;
int old_vx0 = sht->vx0, old_vy0 = sht->vy0;
sht->vx0 = vx0;
sht->vy0 = vy0;
if (sht->height >= 0) { /* 如果正在显示，则按新图层的信息刷新画面 */
sheet_refreshsub(sht->ctl, old_vx0, old_vy0, old_vx0 + sht->bxsize, old_vy0 + sht->bysize, 0);
sheet_refreshsub(sht->ctl, vx0, vy0, vx0 + sht->bxsize, vy0 + sht->bysize, sht->height);
sheet_refreshmap(ctl, old_vx0, old_vy0, old_vx0 + sht->bxsize, old_vy0 + sht->bysize, 0);
sheet_refreshmap(ctl, vx0, vy0, vx0 + sht->bxsize, vy0 + sht->bysize, sht->height);
sheet_refreshsub(ctl, old_vx0, old_vy0, old_vx0 + sht->bxsize, old_vy0 + sht->bysize, 0, sht->height - 1);
sheet_refreshsub(ctl, vx0, vy0, vx0 + sht->bxsize, vy0 + sht->bysize, sht->height, sht->height);
}
return;
}
Expand Down

0 comments on commit b55a841

Please sign in to comment.