STRUCT FIMC_SCALER(9)

💅 struct fimc_scaler(9) — ok so this is the Kernel API Manual, bestie

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✨ NAME ✨

struct fimc_scaler — the configuration data for the FIMC inetrnal scaler 🎀

Like, it's literally the little struct that holds all the vibes your FIMC scaler needs to know about itself. Main character energy fr.

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🌸 SYNOPSIS 🌸

struct fimc_scaler {
    unsigned int scaleup_h:1;
    unsigned int scaleup_v:1;
    unsigned int copy_mode:1;
    unsigned int enabled:1;
    u32 hfactor;
    u32 vfactor;
    u32 pre_hratio;
    u32 pre_vratio;
    u32 pre_dst_width;
    u32 pre_dst_height;
    u32 main_hratio;
    u32 main_vratio;
    u32 real_width;
    u32 real_height;
 };

No cap, that's the whole struct. Four lil bitfields up top doing the flag thing, then a whole stack of u32s carrying the actual numbers. 🦋

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👑 Members 👑

Okay bestie, let's go member by member, because each one is doing its own lil job and we're gonna appreciate all of them:

• scaleup_h — flag indicating scaling up horizontally ✨
• scaleup_v — flag indicating scaling up vertically ✨
• copy_mode — flag indicating transparent DMA transfer (no scaling and color format conversion) 💫 (so like, it just copies. no glow-up, no conversion. straight through.)
• enabled — flag indicating if the scaler is used 👀
• hfactor — horizontal shift factor
• vfactor — vertical shift factor
• pre_hratio — horizontal ratio of the prescaler
• pre_vratio — vertical ratio of the prescaler
• pre_dst_width — the prescaler's destination width
• pre_dst_height — the prescaler's destination height
• main_hratio — the main scaler's horizontal ratio
• main_vratio — the main scaler's vertical ratio
• real_width — source pixel (width - offset)
• real_height — source pixel (height - offset)

Note the two-stage situation: there's a prescaler and a main scaler, and each one gets its own ratios. And real_width/real_height are the source pixel minus the offset — that math is literally right there in the description, iykyk. 🧚

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💜 SEE ALSO 💜

Kernel file ./drivers/media/platform/samsung/exynos4-is/fimc-core.h — that's where the real thing lives, go say hi 🫶

And the whole friend group, in order:

• struct fimc_dma_offset(9)
• struct fimc_effect(9)
• struct fimc_addr(9)
• struct fimc_vid_buffer(9)
• struct fimc_frame(9)
• struct fimc_m2m_device(9)
• struct fimc_vid_cap(9)
• struct fimc_pix_limit(9)
• struct fimc_variant(9)
• struct fimc_drvdata(9)
• struct fimc_dev(9)
• struct fimc_ctrls(9)
• struct fimc_ctx(9)
• fimc_active_queue_add(9)
• fimc_active_queue_pop(9)
• fimc_pending_queue_add(9)
• fimc_pending_queue_pop(9)

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ngl this page is from ./drivers/media/platform/samsu... and it's dated October 2026 — so like, future vibes. 💀✨

Okay that's the whole page, bestie — go forth and scale stuff, slay 💅🔥