tristan/ZealOS
1
0
Fork 0
mirror of https://github.com/Zeal-Operating-System/ZealOS.git synced 2024-12-24 22:50:28 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Use framebuffer pitch instead of width where necessary

Browse source
This commit is contained in:
mintsuki 2024-08-14 22:16:39 +02:00
parent b1e0034183
commit 41e7e302d5
2 changed files with 9 additions and 7 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

14
src/Kernel/Display.ZC
View file

@ -8,7 +8,9 @@ See also $LK,"GrUpdateScreen",A="MN:GrUpdateScreen"$().
*/
I64 i, row, col, x, y;
U32 *framebuffer;
U64 ch_bitmap;
U64 ch_bitmap, fb_width_from_pitch;
fb_width_from_pitch = sys_framebuffer_pitch / (sys_framebuffer_bpp / 8);
if (!(text.raw_flags & RAWF_SHOW_DOLLAR))
{
@ -60,17 +62,17 @@ See also $LK,"GrUpdateScreen",A="MN:GrUpdateScreen"$().
{//Scroll screen down
MemCopy(text.fb_alias,
text.fb_alias + sys_framebuffer_width * FONT_HEIGHT,
(text.screen_size - sys_framebuffer_width * FONT_HEIGHT) * sizeof(U32));
text.fb_alias + fb_width_from_pitch * FONT_HEIGHT,
(text.screen_size - fb_width_from_pitch * FONT_HEIGHT) * sizeof(U32));
MemSetU32(text.fb_alias + text.screen_size - sys_framebuffer_width * FONT_HEIGHT, BLACK32, sys_framebuffer_width * FONT_HEIGHT);
MemSetU32(text.fb_alias + text.screen_size - fb_width_from_pitch * FONT_HEIGHT, BLACK32, fb_width_from_pitch * FONT_HEIGHT);
text.raw_col -= text.cols ;
row = text.rows - 1;
}
x = col * FONT_WIDTH;
y = row * FONT_HEIGHT;
ch_bitmap = text.font[ch & 0xFF];
framebuffer = text.fb_alias + sys_framebuffer_width * y + x;
framebuffer = text.fb_alias + fb_width_from_pitch * y + x;
PUSHFD
CLI
@ -81,7 +83,7 @@ See also $LK,"GrUpdateScreen",A="MN:GrUpdateScreen"$().
else
*framebuffer++ = BLACK32;
if (i & (FONT_WIDTH - 1) == FONT_WIDTH - 1)
framebuffer += sys_framebuffer_width - FONT_WIDTH;
framebuffer += fb_width_from_pitch - FONT_WIDTH;
ch_bitmap >>= 1;
}
POPFD

2
src/Kernel/KMain.ZC
View file

@ -91,7 +91,7 @@ U0 SysGrInit()
text.cols = sys_framebuffer_width / FONT_WIDTH;
text.rows = sys_framebuffer_height / FONT_HEIGHT;
text.screen_size = sys_framebuffer_width * sys_framebuffer_height;
text.screen_size = sys_framebuffer_pitch / (sys_framebuffer_bpp / 8) * sys_framebuffer_height;
text.buffer_size = text.screen_size * 4; //buffer for 32-bit, but only 16 colors now.
text.raw_screen = CAlloc(text.buffer_size);
text.fb_alias = sys_framebuffer_addr;