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We have a character on the screen! 

It looks like potato because no alpha blending yet, but it's certainly
there!  I don't like the spelling of the C code, but who cares?  It
works.
This commit is contained in:
Simon Forman 2023-02-26 11:07:29 -08:00
parent 5d01480f3d
commit 051b9a46b8
1 changed files with 6 additions and 3 deletions
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9
implementations/uvm-ncc/xerblin.c
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@ -13,13 +13,15 @@ int wid;
void
draw_char(u8 ch, u64 x, u64 y)
draw_char(u8 ch, u64 dest_x, u64 dest_y)
{
u32* pix_ptr = frame_buffer + FRAME_WIDTH * y + x;
u32* dest = frame_buffer + FRAME_WIDTH * dest_y + dest_x;
u32* character_data = font_data[ch];
for (size_t x = 0; x < font_width; ++x) {
for (size_t y = 0; y < font_height; ++y) {
*pix_ptr = *character_data;
u32 pixel = character_data[x + font_width * y];
u32* pix_ptr = dest + x + FRAME_WIDTH * y;
*pix_ptr = pixel;
}
}
}
@ -68,6 +70,7 @@ main()
wid = window_create(FRAME_WIDTH, FRAME_HEIGHT, "Bouncing Ball Example", 0);
draw_background();
draw_char(0, 0, 0);
window_draw_frame(wid, frame_buffer);
//window_on_keydown(wid, keydown);
window_on_mousemove(wid, mousemove);
enable_event_loop();