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puzzles: fix blitting when zoomed 

Both blitter_save() and blitter_load() functioned incorrectly when
zoomed in -- blitter_save() would copy from the wrong location, and
blitter_load() would ignore the y-coordinate of the destination.

Change-Id: I7c85debf5953575f72c4a81e3dbcf514202c3aed
This commit is contained in:
Franklin Wei 2017-11-04 12:09:16 -04:00
parent 7f1dd6f593
commit d9a55ac816
1 changed files with 5 additions and 2 deletions
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7
apps/plugins/puzzles/rockbox.c
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@ -1196,14 +1196,17 @@ static void rb_blitter_save(void *handle, blitter *bl, int x, int y)
if(bl->bmp.data)
{
int w = bl->bmp.width, h = bl->bmp.height;
int screen_w = zoom_enabled ? zoom_w : LCD_WIDTH;
trim_rect(&x, &y, &w, &h);
fb_data *fb = zoom_enabled ? zoom_fb : rb->lcd_framebuffer;
LOGF("rb_blitter_save(%d, %d, %d, %d)", x, y, w, h);
for(int i = 0; i < h; ++i)
{
/* copy line-by-line */
rb->memcpy(bl->bmp.data + sizeof(fb_data) * i * w,
fb + (y + i) * LCD_WIDTH + x,
fb + (y + i) * screen_w + x,
w * sizeof(fb_data));
}
bl->x = x;
@ -1236,7 +1239,7 @@ static void rb_blitter_load(void *handle, blitter *bl, int x, int y)
{
for(int i = 0; i < h; ++i)
{
rb->memcpy(zoom_fb + i * zoom_w + x,
rb->memcpy(zoom_fb + (y + i) * zoom_w + x,
bl->bmp.data + sizeof(fb_data) * i * w,
w * sizeof(fb_data));
}