Lab 5 Tasks

Requested Functions

• int video_set_mode(uint16_t mode)
• int video_map_framebuffer(void)
• int video_fill_rect(uint16_t x, uint16_t y, uint16_t w, uint16_t h, uint32_t color)
• int video_draw_xpm(const char *const *xpm, int16_t x, int16_t y)
• int video_present(void)

Guided Gaps

• Store mode info for later drawing.
• Decide how repeated mode setup behaves.
• Clip drawing before writing pixels.
• Keep color packing clear.
• Parse enough XPM for course sprites.

IMPORTANT

Drawing past the framebuffer is memory corruption. Clip rectangles and sprites before writing.

Common Mistakes

• Assuming pitch equals visible row width.
• Forgetting to map before drawing.
• Writing colors in the wrong byte order.
• Ignoring negative sprite coordinates.

Next: checks and references.