diff options
Diffstat (limited to 'fiv-io.h')
| -rw-r--r-- | fiv-io.h | 48 |
1 files changed, 36 insertions, 12 deletions
@@ -1,7 +1,7 @@ // // fiv-io.h: image operations // -// Copyright (c) 2021 - 2023, Přemysl Eric Janouch <p@janouch.name> +// Copyright (c) 2021 - 2024, Přemysl Eric Janouch <p@janouch.name> // // Permission to use, copy, modify, and/or distribute this software for any // purpose with or without fee is hereby granted. @@ -22,16 +22,44 @@ #include <glib.h> #include <webp/encode.h> // WebPConfig +typedef enum _FivIoOrientation FivIoOrientation; +typedef struct _FivIoRenderClosure FivIoRenderClosure; +typedef struct _FivIoImage FivIoImage; + // --- Colour management ------------------------------------------------------- +void fiv_io_profile_init(void); + // TODO(p): Make it also possible to use Skia's skcms. typedef void *FivIoProfile; -FivIoProfile fiv_io_profile_new(const void *data, size_t len); -FivIoProfile fiv_io_profile_new_sRGB(void); -void fiv_io_profile_free(FivIoProfile self); +FivIoProfile *fiv_io_profile_new(const void *data, size_t len); +FivIoProfile *fiv_io_profile_new_from_bytes(GBytes *bytes); +FivIoProfile *fiv_io_profile_new_sRGB(void); +FivIoProfile *fiv_io_profile_new_sRGB_gamma(double gamma); +FivIoProfile *fiv_io_profile_new_parametric( + double gamma, double whitepoint[2], double primaries[6]); +GBytes *fiv_io_profile_to_bytes(FivIoProfile *profile); +void fiv_io_profile_free(FivIoProfile *self); + +// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -// From libwebp, verified to exactly match [x * a / 255]. -#define PREMULTIPLY8(a, x) (((uint32_t) (x) * (uint32_t) (a) * 32897U) >> 23) +void fiv_io_premultiply_argb32(FivIoImage *image); + +void fiv_io_profile_cmyk( + FivIoImage *image, FivIoProfile *source, FivIoProfile *target); +void fiv_io_profile_4x16le_direct(unsigned char *data, + int w, int h, FivIoProfile *source, FivIoProfile *target); +void fiv_io_profile_argb32_premultiply( + FivIoImage *image, FivIoProfile *source, FivIoProfile *target); + +void fiv_io_profile_page(FivIoImage *page, FivIoProfile *target, + void (*frame_cb) (FivIoImage *, FivIoProfile *, FivIoProfile *)); +#define fiv_io_profile_argb32_premultiply_page(page, target) \ + fiv_io_profile_page((page), (target), fiv_io_profile_argb32_premultiply) + +void fiv_io_profile_any( + FivIoImage *image, FivIoProfile *source, FivIoProfile *target); +FivIoImage *fiv_io_profile_finalize(FivIoImage *image, FivIoProfile *target); // --- Loading ----------------------------------------------------------------- @@ -39,10 +67,6 @@ extern const char *fiv_io_supported_media_types[]; gchar **fiv_io_all_supported_media_types(void); -typedef enum _FivIoOrientation FivIoOrientation; -typedef struct _FivIoRenderClosure FivIoRenderClosure; -typedef struct _FivIoImage FivIoImage; - // https://www.cipa.jp/std/documents/e/DC-008-2012_E.pdf Table 6 enum _FivIoOrientation { FivIoOrientationUnknown = 0, @@ -60,7 +84,7 @@ enum _FivIoOrientation { // then loaders could store it in their closures. struct _FivIoRenderClosure { /// The rendering is allowed to fail, returning NULL. - FivIoImage *(*render)(FivIoRenderClosure *, FivIoProfile, double scale); + FivIoImage *(*render)(FivIoRenderClosure *, FivIoProfile *, double scale); void (*destroy)(FivIoRenderClosure *); }; @@ -179,4 +203,4 @@ unsigned char *fiv_io_encode_webp( /// Saves the page as a lossless WebP still picture or animation. /// If no exact frame is specified, this potentially creates an animation. gboolean fiv_io_save(FivIoImage *page, FivIoImage *frame, - FivIoProfile target, const char *path, GError **error); + FivIoProfile *target, const char *path, GError **error); |