sm750_hw_imageblit(9)

💫 sm750_hw_imageblit(9) 💫

okay so bestie, this is a page from the Kernel API Manual and it's all about sm750_hw_imageblit — a little function that pushes a monochrome image into the frame buffer of an SM750 graphics chip. no cap, it's giving "low-level driver realness" and honestly? iconic. 🎀

✨ NAME ✨

sm750_hw_imageblit — (yeah the original literally leaves this blank, so we're all just out here raw-dogging the synopsis, bestie 😭)

🌸 SYNOPSIS 🌸

int sm750_hw_imageblit (struct lynx_accel *accel , const char *src_buf ,
u32 start_bit , u32 dest_base , u32 dest_pitch , u32 byte_per_pixel ,
u32 dx , u32 dy , u32 width , u32 height , u32 fg_color , u32 bg_color ,
u32 rop2 );

like, look at all those parameters. that's a whole friend group. 🫶

🦋 ARGUMENTS 🦋

• accel — honestly? the manpage says -- undescribed -- so I'm gonna be so fr with you: nobody wrote the description. it's giving mystery. it's giving "the docs said ¯\_(ツ)_/¯". main character energy, truly. 👑
• src_buf — pointer to the start of the source buffer, over there in system memory. that's where the pixels are living before they get yeeted to the hardware. 💅
• start_bit — mono data can start at any bit inside a byte, and this value should be >----- 0 to 7. and yes, bestie, that >----- thing is straight from the original — I refuse to edit someone's art. 🙈
• dest_base — the address of the destination, as an offset in the frame buffer. that's the home address of your pixels. 🏠
• dest_pitch — the pitch value of the destination surface, and it's in BYTE (caps are the original's, not mine — she's loud and we respect it). 🔥
• byte_per_pixel — the color depth of the destination surface. iykyk.
• dx — starting x coordinate of the destination surface. horizontal bestie. ➡️
• dy — starting y coordinate of the destination surface. vertical bestie. ⬇️
• width — width of the rectangle, in pixel values. 🍓
• height — height of the rectangle, in pixel values. it's giving geometry. 📐
• fg_color — the foreground color, which corresponds to a 1 in the monochrome data (the original's paren is unclosed, and I'm not here to fix the vibes, only to describe them 💀).
• bg_color — the background color, which corresponds to a 0 in the monochrome data (same deal with the paren, we love a consistent queen 💜).
• rop2 — the ROP value. that's it. that's the whole description. short and mysterious, ngl. ✨

⭐ SEE ALSO ⭐

• the kernel file ./drivers/staging/sm750fb/sm750_accel.h — go read it, babe, it's in there. 💖

alright, that's the whole page! 🧚 this little beauty comes to you courtesy of the source path ./drivers/staging/sm750fb, dated October 2026 — so mark your calendar, screenshot it, put it on your fridge, whatever. mwah! 🌈💅🎀