SDL_MatrixCoefficients(3type)

📦
version 3.4.18 · 9 versions
, in fedora 43, fedora 44

💖 SDL_MatrixCoefficients 💖

okay bestie, buckle up, because we're about to talk about the SDL_MatrixCoefficients(3type) enum from the SDL3 DATATYPES era of the SDL manual, and honestly? it's giving ✨color science✨. it's a lil enum that tells you which colorspace matrix coefficients you're working with. lowkey iconic. no cap.

🌸 SYNOPSIS 🌸

#include <SDL3/SDL_pixels.h>

typedef enum SDL_MatrixCoefficients
{
    SDL_MATRIX_COEFFICIENTS_IDENTITY = 0,
    SDL_MATRIX_COEFFICIENTS_BT709 = 1,              /**< ITU-R BT.709-6 */
    SDL_MATRIX_COEFFICIENTS_UNSPECIFIED = 2,
    SDL_MATRIX_COEFFICIENTS_FCC = 4,                /**< US FCC Title 47 */
    SDL_MATRIX_COEFFICIENTS_BT470BG = 5,            /**< ITU-R BT.470-6 System B, G / ITU-R BT.601-7 625, functionally the same as SDL_MATRIX_COEFFICIENTS_BT601 */
    SDL_MATRIX_COEFFICIENTS_BT601 = 6,              /**< ITU-R BT.601-7 525 */
    SDL_MATRIX_COEFFICIENTS_SMPTE240 = 7,           /**< SMPTE 240M */
    SDL_MATRIX_COEFFICIENTS_YCGCO = 8,
    SDL_MATRIX_COEFFICIENTS_BT2020_NCL = 9,         /**< ITU-R BT.2020-2 non-constant luminance */
    SDL_MATRIX_COEFFICIENTS_BT2020_CL = 10,         /**< ITU-R BT.2020-2 constant luminance */
    SDL_MATRIX_COEFFICIENTS_SMPTE2085 = 11,         /**< SMPTE ST 2085 */
    SDL_MATRIX_COEFFICIENTS_CHROMA_DERIVED_NCL = 12,
    SDL_MATRIX_COEFFICIENTS_CHROMA_DERIVED_CL = 13,
    SDL_MATRIX_COEFFICIENTS_ICTCP = 14,             /**< ITU-R BT.2100-0 ICTCP */
    SDL_MATRIX_COEFFICIENTS_CUSTOM = 31
} SDL_MatrixCoefficients;

like, look at her. a whole enum. fifteen members. she ate and left no crumbs 🍓

✨ DESCRIPTION ✨

so these are the colorspace matrix coefficients, and they're exactly as described by the good people over at:

https://www.itu.int/rec/T-REC-H.273-201612-S/en

that's the source of truth, bestie. ITU-T Recommendation H.273, December 2016 version. if you need the full lore, that's where you go. 🧚

🫶 AVAILABILITY 🫶

this enum has been out here living her best life since SDL 3.2.0. queen behavior, honestly. 👑

and that's the whole page, bestie!! go forth and pick your matrix coefficients wisely 💅

mwah 💜

this has been a page from Simple Directmedia Layer, sitting pretty at version SDL 3.4.18, and yes it's literally the SDL_MatrixCoefficients(3type) page, iykyk 🎀✨

📦 where this page comes from