mono_src_copy_imm_blit(9)

📦 version 7.3.1, in nixpkgs unstable

💅 mono_src_copy_imm_blit(9) 💅

okay bestie, welcome to another episode of Kernel API Manual, and this one is genuinely iconic if you're into framebuffers 👑

✨ NAME ✨

mono_src_copy_imm_blit — color expand from system memory to framebuffer 🌈

✨ SYNOPSIS ✨

void mono_src_copy_imm_blit (int dwidth , int dheight , int dpitch , int
dsize , int blit_bpp , int rop , int dest , const u32 *src , int bg ,
int fg , struct fb_info *info );

not me dropping the whole signature on you like that 😭 but don't panic, we're gonna go through every single one of these params one by one, no cap 💖

✨ ARGUMENTS ✨

  • dwidth — width of destination. like, how wide the thing you're drawing into is 🎀
  • dheight — height of destination. the vertical bestie of dwidth 🦋
  • dpitch — pixels per line of the buffer. yes, per line, so you know where the next row starts ✨
  • dsize — size of bitmap in double words. double words, not vibes 💅
  • blit_bpp — pixelformat to use which can be different from the framebuffer's pixelformat. lowkey flexible, we love that for you 🫶
  • rop — raster operation. the whole "how do the pixels combine" situation 🌸
  • dest — address of first byte of pixel; (yep, the original ends that one with a semicolon, she's just like that 💀)
  • src — address of image data. your actual picture source 📸
  • bg — backgound color. (spelled exactly like that in the original, we do not correct legends 🙈) 🍓
  • fg — forground color. (same deal, iconic spelling, keeping it 💜) 🎨
  • info — -- undescribed -- 😭 the documentation said "no thoughts, head empty" and honestly? relatable. it's a struct fb_info *, that's all we get, and we're at peace with it 🧚

✨ DESCRIPTION ✨

so here's the tea ☕: this is a color expand operation where the source data is placed in the ringbuffer itself. literally, the data lives right there in the ringbuffer. useful for drawing text ✍️ — yes, this whole thing is basically the "put letters on screen" pipeline and it ate 💅

⚠️ REQUIREMENT: The end of a scanline must be padded to the next word. fr fr, do not skip the padding, this is a requirement not a suggestion, bestie 😤 ⭐

✨ SEE ALSO ✨

go check out the rest of the friend group, they all live in the kernel file ./drivers/video/fbdev/i810/i810_accel.c 👑

that's the whole page gorgeous, you understood it perfectly, main character energy only 🌟

🎀 sign-off time: this lil page lives under ./drivers/video/fbdev/i810, dated October 2026, and she answers to the name mono_src_copy_imm_blit(9). mwah 💋 go pad your scanlines 🦋💖
📦 where this page comes from