Nyaaori/rockbox
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

Revert "lcd_putsxyofs 16 bit lcd_mono_bitmap_part [AS]"

Browse source 
This reverts commit 49edfc237b.

Reason for revert: font rendering bug, https://gist.github.com/amachronic/5fa75da280432127de4b44ee2d760281

Change-Id: I13b5f0eedb2926bce67051c8f0bb2ae5dea9f299
This commit is contained in:
William Wilgus 2021-08-25 13:04:22 +00:00
parent 97b0e5b5a1
commit dbd051394e
1 changed files with 9 additions and 8 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

17
firmware/drivers/lcd-16bit-common.c
View file

@ -341,18 +341,12 @@ void ICODE_ATTR lcd_mono_bitmap_part(const unsigned char *src, int src_x,
if (y + height > LCD_HEIGHT)
height = LCD_HEIGHT - y;
#endif
src += stride * (src_y >> 3) + src_x; /* move starting point */
src_y &= 7;
src_end = src + width;
dst_col = FBADDR(x, y);
/* 'Bugfix' mono_bitmap_part reads ahead in the buffer,
* if the height is <= char bit pixels other memory gets read
* the other option is to check in the hot code path but this appears
* sufficient
*/
if (height <= CHAR_BIT)
stride = 0;
if (drmode & DRMODE_INVERSEVID)
{
@ -468,7 +462,14 @@ void ICODE_ATTR lcd_mono_bitmap_part(const unsigned char *src, int src_x,
/* Draw a full monochrome bitmap */
void lcd_mono_bitmap(const unsigned char *src, int x, int y, int width, int height)
{
lcd_mono_bitmap_part(src, 0, 0, width, x, y, width, height);
int stride = width;
/* 'Bugfix' mono_bitmap_part reads ahead in the buffer,
* if the height is <= char bit pixels other memory gets read
*/
if (height <= CHAR_BIT)
stride = 0;
lcd_mono_bitmap_part(src, 0, 0, stride, x, y, width, height);
}