source_copy_blit(9)

okay so bestie, this page is from the Kernel API Manual, and the main character is source_copy_blit(9) ✨. It's giving low-level graphics transfer energy, and we're gonna go through every single arg because we do not skip details in this house 💅.

🌸 NAME 🌸

source_copy_blit — BLIT transfer operation ✨

That's the whole vibe: a BLIT transfer op, no cap.

🦋 SYNOPSIS 🦋

       void source_copy_blit (int dwidth , int dheight , int dpitch , int xdir
       , int src , int dest , int rop , int blit_bpp , struct fb_info *info );

Yup, the return type is void — no return value era 🫶.

🎀 ARGUMENTS 🎀

• dwidth — width of the rectangular graphics data 💖
• dheight — height of the rectangular graphics data 🌸
• dpitch — bytes per line of the destination buffer ✨
• xdir — direction of the copy: left to right or right to left 🔁
• src — address of the first pixel to read from 👀
• dest — address of the first pixel to write to 🖊️
• rop — raster operation 💫
• blit_bpp — pixel format, and it can be different from the framebuffer's pixelformat 👑
• info — the page literally says -- undescribed -- 😭, so we're not inventing lore for it. That's the note, fr fr.

💜 DESCRIPTION 💜

This is a BLIT operation, typically used when doing a 'Copy and Paste' 🎀. So like, classic copy-paste behavior but at the BLIT level, iykyk. That's the description bestie — no extra side quests, no made-up facts.

🌈 SEE ALSO 🌈

Kernel file ./drivers/video/fbdev/i810/i810_accel.c — and these related besties:

• wait_for_space(9)
• wait_for_engine_idle(9)
• end_iring(9)
• color_blit(9)
• mono_src_copy_imm_blit(9)
• i810fb_iring_enable(9)
• i810fb_init_ringbuffer(9)

All of those are exactly the SEE ALSO crew 💖.

later bestie 💅 — this page's footer says source/version ./drivers/video/fbdev/i810, dated October 2026, and the page is source_copy_blit(9). slay ✨