Prepare for parallelized colour management

This rewrite is more or less necessary for:
 - colour-managed browser thumbnails,
 - asynchronous image loading,
 - turning fiv-io into a reusable library.

Little CMS has a fairly terrible API in this regard.
This commit is contained in:
Přemysl Eric Janouch 2024-01-26 21:58:18 +01:00
parent 9acab00bcc
commit 604594a8f1
Signed by: p
GPG Key ID: A0420B94F92B9493
7 changed files with 412 additions and 301 deletions

View File

@ -1,5 +1,5 @@
//
// fiv-profile.c: colour management
// fiv-io-cmm.c: colour management
//
// Copyright (c) 2024, Přemysl Eric Janouch <p@janouch.name>
//
@ -23,6 +23,7 @@
#include "fiv-io.h"
// Colour management must be handled before RGB conversions.
// TODO(p): Make it also possible to use Skia's skcms.
#ifdef HAVE_LCMS2
#include <lcms2.h>
#endif // HAVE_LCMS2
@ -30,128 +31,7 @@
#include <lcms2_fast_float.h>
#endif // HAVE_LCMS2_FAST_FLOAT
// https://github.com/mm2/Little-CMS/issues/430
static bool g_broken_cms_premul;
void
fiv_io_profile_init(void)
{
// TODO(p): Use Little CMS with contexts instead.
#ifdef HAVE_LCMS2_FAST_FLOAT
if (cmsPluginTHR(NULL, cmsFastFloatExtensions()))
g_broken_cms_premul = LCMS_VERSION <= 2160;
#endif // HAVE_LCMS2_FAST_FLOAT
}
FivIoProfile *
fiv_io_profile_new(const void *data, size_t len)
{
#ifdef HAVE_LCMS2
return cmsOpenProfileFromMemTHR(NULL, data, len);
#else
(void) data;
(void) len;
return NULL;
#endif
}
FivIoProfile *
fiv_io_profile_new_sRGB(void)
{
#ifdef HAVE_LCMS2
return cmsCreate_sRGBProfileTHR(NULL);
#else
return NULL;
#endif
}
FivIoProfile *
fiv_io_profile_new_parametric(
double gamma, double whitepoint[2], double primaries[6])
{
#ifdef HAVE_LCMS2
// TODO(p): Make sure to use the library in a thread-safe manner.
cmsContext context = NULL;
const cmsCIExyY cmsWP = {whitepoint[0], whitepoint[1], 1.0};
const cmsCIExyYTRIPLE cmsP = {
{primaries[0], primaries[1], 1.0},
{primaries[2], primaries[3], 1.0},
{primaries[4], primaries[5], 1.0},
};
cmsToneCurve *curve = cmsBuildGamma(context, gamma);
if (!curve)
return NULL;
cmsHPROFILE profile = cmsCreateRGBProfileTHR(
context, &cmsWP, &cmsP, (cmsToneCurve *[3]){curve, curve, curve});
cmsFreeToneCurve(curve);
return profile;
#else
(void) gamma;
(void) whitepoint;
(void) primaries;
return NULL;
#endif
}
FivIoProfile *
fiv_io_profile_new_sRGB_gamma(double gamma)
{
return fiv_io_profile_new_parametric(gamma,
(double[2]){0.3127, 0.3290},
(double[6]){0.6400, 0.3300, 0.3000, 0.6000, 0.1500, 0.0600});
}
FivIoProfile *
fiv_io_profile_new_from_bytes(GBytes *bytes)
{
gsize len = 0;
gconstpointer p = g_bytes_get_data(bytes, &len);
return fiv_io_profile_new(p, len);
}
GBytes *
fiv_io_profile_to_bytes(FivIoProfile *profile)
{
#ifdef HAVE_LCMS2
cmsUInt32Number len = 0;
(void) cmsSaveProfileToMem(profile, NULL, &len);
gchar *data = g_malloc0(len);
if (!cmsSaveProfileToMem(profile, data, &len)) {
g_free(data);
return NULL;
}
return g_bytes_new_take(data, len);
#else
(void) profile;
return NULL;
#endif
}
void
fiv_io_profile_free(FivIoProfile *self)
{
#ifdef HAVE_LCMS2
cmsCloseProfile(self);
#else
(void) self;
#endif
}
// --- Image loading -----------------------------------------------------------
// TODO(p): In general, try to use CAIRO_FORMAT_RGB30 or CAIRO_FORMAT_RGBA128F.
#ifndef HAVE_LCMS2
#define FIV_IO_PROFILE_ARGB32 0
#define FIV_IO_PROFILE_4X16LE 0
#else
#define FIV_IO_PROFILE_ARGB32 \
(G_BYTE_ORDER == G_LITTLE_ENDIAN ? TYPE_BGRA_8 : TYPE_ARGB_8)
#define FIV_IO_PROFILE_4X16LE \
(G_BYTE_ORDER == G_LITTLE_ENDIAN ? TYPE_BGRA_16 : TYPE_BGRA_16_SE)
#endif
// --- CMM-independent transforms ----------------------------------------------
// CAIRO_STRIDE_ALIGNMENT is 4 bytes, so there will be no padding with
// ARGB/BGRA/XRGB/BGRX.
@ -179,99 +59,6 @@ trivial_cmyk_to_host_byte_order_argb(unsigned char *p, int len)
}
}
void
fiv_io_profile_cmyk(
FivIoImage *image, FivIoProfile *source, FivIoProfile *target)
{
#ifndef HAVE_LCMS2
(void) source;
(void) target;
#else
cmsHTRANSFORM transform = NULL;
if (source && target) {
transform = cmsCreateTransformTHR(NULL, source, TYPE_CMYK_8_REV, target,
FIV_IO_PROFILE_ARGB32, INTENT_PERCEPTUAL, 0);
}
if (transform) {
cmsDoTransform(
transform, image->data, image->data, image->width * image->height);
cmsDeleteTransform(transform);
return;
}
#endif
trivial_cmyk_to_host_byte_order_argb(
image->data, image->width * image->height);
}
static bool
fiv_io_profile_rgb_direct(unsigned char *data, int w, int h,
FivIoProfile *source, FivIoProfile *target,
uint32_t source_format, uint32_t target_format)
{
#ifndef HAVE_LCMS2
(void) data;
(void) w;
(void) h;
(void) source;
(void) source_format;
(void) target;
(void) target_format;
return false;
#else
// TODO(p): We should make this optional.
cmsHPROFILE src_fallback = NULL;
if (target && !source)
source = src_fallback = cmsCreate_sRGBProfileTHR(NULL);
cmsHTRANSFORM transform = NULL;
if (source && target) {
transform = cmsCreateTransformTHR(NULL,
source, source_format, target, target_format, INTENT_PERCEPTUAL, 0);
}
if (transform) {
cmsDoTransform(transform, data, data, w * h);
cmsDeleteTransform(transform);
}
if (src_fallback)
cmsCloseProfile(src_fallback);
return transform != NULL;
#endif
}
static void
fiv_io_profile_xrgb32(
FivIoImage *image, FivIoProfile *source, FivIoProfile *target)
{
fiv_io_profile_rgb_direct(image->data, image->width, image->height,
source, target, FIV_IO_PROFILE_ARGB32, FIV_IO_PROFILE_ARGB32);
}
void
fiv_io_profile_4x16le_direct(unsigned char *data,
int w, int h, FivIoProfile *source, FivIoProfile *target)
{
fiv_io_profile_rgb_direct(data, w, h, source, target,
FIV_IO_PROFILE_4X16LE, FIV_IO_PROFILE_4X16LE);
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
void
fiv_io_profile_page(FivIoImage *page, FivIoProfile *target,
void (*frame_cb) (FivIoImage *, FivIoProfile *, FivIoProfile *))
{
FivIoProfile *source = NULL;
if (page->icc)
source = fiv_io_profile_new_from_bytes(page->icc);
// TODO(p): All animations need to be composited in a linear colour space.
for (FivIoImage *frame = page; frame != NULL; frame = frame->frame_next)
frame_cb(frame, source, target);
if (source)
fiv_io_profile_free(source);
}
// From libwebp, verified to exactly match [x * a / 255].
#define PREMULTIPLY8(a, x) (((uint32_t) (x) * (uint32_t) (a) * 32897U) >> 23)
@ -293,34 +80,316 @@ fiv_io_premultiply_argb32(FivIoImage *image)
}
}
// --- Profiles ----------------------------------------------------------------
#ifdef HAVE_LCMS2
struct _FivIoProfile {
FivIoCmm *cmm;
cmsHPROFILE profile;
};
GBytes *
fiv_io_profile_to_bytes(FivIoProfile *profile)
{
cmsUInt32Number len = 0;
(void) cmsSaveProfileToMem(profile, NULL, &len);
gchar *data = g_malloc0(len);
if (!cmsSaveProfileToMem(profile, data, &len)) {
g_free(data);
return NULL;
}
return g_bytes_new_take(data, len);
}
static FivIoProfile *
fiv_io_profile_new(FivIoCmm *cmm, cmsHPROFILE profile)
{
FivIoProfile *self = g_new0(FivIoProfile, 1);
self->cmm = g_object_ref(cmm);
self->profile = profile;
return self;
}
void
fiv_io_profile_free(FivIoProfile *self)
{
cmsCloseProfile(self->profile);
g_clear_object(&self->cmm);
g_free(self);
}
#else // ! HAVE_LCMS2
GBytes *fiv_io_profile_to_bytes(FivIoProfile *) { return NULL; }
void fiv_io_profile_free(FivIoProfile *) {}
#endif // ! HAVE_LCMS2
// --- Contexts ----------------------------------------------------------------
#ifdef HAVE_LCMS2
struct _FivIoCmm {
GObject parent_instance;
cmsContext context;
// https://github.com/mm2/Little-CMS/issues/430
gboolean broken_premul;
};
G_DEFINE_TYPE(FivIoCmm, fiv_io_cmm, G_TYPE_OBJECT)
static void
fiv_io_cmm_finalize(GObject *gobject)
{
FivIoCmm *self = FIV_IO_CMM(gobject);
cmsDeleteContext(self->context);
G_OBJECT_CLASS(fiv_io_cmm_parent_class)->finalize(gobject);
}
static void
fiv_io_cmm_class_init(FivIoCmmClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS(klass);
object_class->finalize = fiv_io_cmm_finalize;
}
static void
fiv_io_cmm_init(FivIoCmm *self)
{
self->context = cmsCreateContext(NULL, self);
#ifdef HAVE_LCMS2_FAST_FLOAT
if (cmsPluginTHR(self->context, cmsFastFloatExtensions()))
self->broken_premul = LCMS_VERSION <= 2160;
#endif // HAVE_LCMS2_FAST_FLOAT
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
FivIoCmm *
fiv_io_cmm_get_default(void)
{
static gsize initialization_value = 0;
static FivIoCmm *default_ = NULL;
if (g_once_init_enter(&initialization_value)) {
gsize setup_value = 1;
default_ = g_object_new(FIV_TYPE_IO_CMM, NULL);
g_once_init_leave(&initialization_value, setup_value);
}
return default_;
}
FivIoProfile *
fiv_io_cmm_get_profile(FivIoCmm *self, const void *data, size_t len)
{
g_return_val_if_fail(self != NULL, NULL);
return fiv_io_profile_new(self,
cmsOpenProfileFromMemTHR(self->context, data, len));
}
FivIoProfile *
fiv_io_cmm_get_profile_sRGB(FivIoCmm *self)
{
g_return_val_if_fail(self != NULL, NULL);
return fiv_io_profile_new(self,
cmsCreate_sRGBProfileTHR(self->context));
}
FivIoProfile *
fiv_io_cmm_get_profile_parametric(FivIoCmm *self,
double gamma, double whitepoint[2], double primaries[6])
{
g_return_val_if_fail(self != NULL, NULL);
const cmsCIExyY cmsWP = {whitepoint[0], whitepoint[1], 1.0};
const cmsCIExyYTRIPLE cmsP = {
{primaries[0], primaries[1], 1.0},
{primaries[2], primaries[3], 1.0},
{primaries[4], primaries[5], 1.0},
};
cmsToneCurve *curve = cmsBuildGamma(self->context, gamma);
if (!curve)
return NULL;
cmsHPROFILE profile = cmsCreateRGBProfileTHR(self->context,
&cmsWP, &cmsP, (cmsToneCurve *[3]){curve, curve, curve});
cmsFreeToneCurve(curve);
return fiv_io_profile_new(self, profile);
}
#else // ! HAVE_LCMS2
FivIoCmm *
fiv_io_cmm_get_default()
{
return NULL;
}
FivIoProfile *
fiv_io_cmm_get_profile(FivIoCmm *, const void *, size_t)
{
return NULL;
}
FivIoProfile *
fiv_io_cmm_get_profile_sRGB(FivIoCmm *)
{
return NULL;
}
FivIoProfile *
fiv_io_cmm_get_profile_parametric(FivIoCmm *, double, double[2], double[6])
{
return NULL;
}
#endif // ! HAVE_LCMS2
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
FivIoProfile *
fiv_io_cmm_get_profile_sRGB_gamma(FivIoCmm *self, double gamma)
{
return fiv_io_cmm_get_profile_parametric(self, gamma,
(double[2]){0.3127, 0.3290},
(double[6]){0.6400, 0.3300, 0.3000, 0.6000, 0.1500, 0.0600});
}
FivIoProfile *
fiv_io_cmm_get_profile_from_bytes(FivIoCmm *self, GBytes *bytes)
{
gsize len = 0;
gconstpointer p = g_bytes_get_data(bytes, &len);
return fiv_io_cmm_get_profile(self, p, len);
}
// --- Image loading -----------------------------------------------------------
#ifdef HAVE_LCMS2
// TODO(p): In general, try to use CAIRO_FORMAT_RGB30 or CAIRO_FORMAT_RGBA128F.
#define FIV_IO_PROFILE_ARGB32 \
(G_BYTE_ORDER == G_LITTLE_ENDIAN ? TYPE_BGRA_8 : TYPE_ARGB_8)
#define FIV_IO_PROFILE_4X16LE \
(G_BYTE_ORDER == G_LITTLE_ENDIAN ? TYPE_BGRA_16 : TYPE_BGRA_16_SE)
void
fiv_io_cmm_cmyk(FivIoCmm *self,
FivIoImage *image, FivIoProfile *source, FivIoProfile *target)
{
g_return_if_fail(target == NULL || self != NULL);
cmsHTRANSFORM transform = NULL;
if (source && target) {
transform = cmsCreateTransformTHR(self->context,
source->profile, TYPE_CMYK_8_REV,
target->profile, FIV_IO_PROFILE_ARGB32, INTENT_PERCEPTUAL, 0);
}
if (transform) {
cmsDoTransform(
transform, image->data, image->data, image->width * image->height);
cmsDeleteTransform(transform);
return;
}
trivial_cmyk_to_host_byte_order_argb(
image->data, image->width * image->height);
}
static bool
fiv_io_cmm_rgb_direct(FivIoCmm *self, unsigned char *data, int w, int h,
FivIoProfile *source, FivIoProfile *target,
uint32_t source_format, uint32_t target_format)
{
g_return_val_if_fail(target == NULL || self != NULL, false);
// TODO(p): We should make this optional.
FivIoProfile *src_fallback = NULL;
if (target && !source)
source = src_fallback = fiv_io_cmm_get_profile_sRGB(self);
cmsHTRANSFORM transform = NULL;
if (source && target) {
transform = cmsCreateTransformTHR(self->context,
source->profile, source_format,
target->profile, target_format, INTENT_PERCEPTUAL, 0);
}
if (transform) {
cmsDoTransform(transform, data, data, w * h);
cmsDeleteTransform(transform);
}
if (src_fallback)
fiv_io_profile_free(src_fallback);
return transform != NULL;
}
static void
fiv_io_cmm_xrgb32(FivIoCmm *self,
FivIoImage *image, FivIoProfile *source, FivIoProfile *target)
{
fiv_io_cmm_rgb_direct(self, image->data, image->width, image->height,
source, target, FIV_IO_PROFILE_ARGB32, FIV_IO_PROFILE_ARGB32);
}
void
fiv_io_cmm_4x16le_direct(FivIoCmm *self, unsigned char *data,
int w, int h, FivIoProfile *source, FivIoProfile *target)
{
fiv_io_cmm_rgb_direct(self, data, w, h, source, target,
FIV_IO_PROFILE_4X16LE, FIV_IO_PROFILE_4X16LE);
}
#else // ! HAVE_LCMS2
void
fiv_io_cmm_cmyk(FivIoCmm *, FivIoImage *image, FivIoProfile *, FivIoProfile *)
{
trivial_cmyk_to_host_byte_order_argb(
image->data, image->width * image->height);
}
static void
fiv_io_cmm_xrgb32(FivIoCmm *, FivIoImage *, FivIoProfile *, FivIoProfile *)
{
}
void
fiv_io_cmm_4x16le_direct(
FivIoCmm *, unsigned char *, int, int, FivIoProfile *, FivIoProfile *)
{
}
#endif // ! HAVE_LCMS2
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
#if defined HAVE_LCMS2 && LCMS_VERSION >= 2130
#define FIV_IO_PROFILE_ARGB32_PREMUL \
(G_BYTE_ORDER == G_LITTLE_ENDIAN ? TYPE_BGRA_8_PREMUL : TYPE_ARGB_8_PREMUL)
static void
fiv_io_profile_argb32(FivIoImage *image,
fiv_io_cmm_argb32(FivIoCmm *self, FivIoImage *image,
FivIoProfile *source, FivIoProfile *target)
{
g_return_if_fail(image->format == CAIRO_FORMAT_ARGB32);
// TODO: With g_no_cms_premultiplication,
// TODO: With self->broken_premul,
// this probably also needs to be wrapped in un-premultiplication.
fiv_io_profile_rgb_direct(image->data, image->width, image->height,
fiv_io_cmm_rgb_direct(self, image->data, image->width, image->height,
source, target,
FIV_IO_PROFILE_ARGB32_PREMUL, FIV_IO_PROFILE_ARGB32_PREMUL);
}
void
fiv_io_profile_argb32_premultiply(
fiv_io_cmm_argb32_premultiply(FivIoCmm *self,
FivIoImage *image, FivIoProfile *source, FivIoProfile *target)
{
g_return_if_fail(target == NULL || self != NULL);
if (image->format != CAIRO_FORMAT_ARGB32) {
fiv_io_profile_xrgb32(image, source, target);
} else if (g_broken_cms_premul) {
fiv_io_profile_xrgb32(image, source, target);
fiv_io_cmm_xrgb32(self, image, source, target);
} else if (!target || self->broken_premul) {
fiv_io_cmm_xrgb32(self, image, source, target);
fiv_io_premultiply_argb32(image);
} else if (!fiv_io_profile_rgb_direct(image->data,
} else if (!fiv_io_cmm_rgb_direct(self, image->data,
image->width, image->height, source, target,
FIV_IO_PROFILE_ARGB32, FIV_IO_PROFILE_ARGB32_PREMUL)) {
g_debug("failed to create a premultiplying transform");
@ -330,23 +399,41 @@ fiv_io_profile_argb32_premultiply(
#else // ! HAVE_LCMS2 || LCMS_VERSION < 2130
// TODO(p): Unpremultiply, transform, repremultiply. Or require lcms2>=2.13.
#define fiv_io_profile_argb32(surface, source, target)
static void
fiv_io_profile_argb32_premultiply(
fiv_io_cmm_argb32(FivIoCmm *, FivIoImage *, FivIoProfile *, FivIoProfile *)
{
// TODO(p): Unpremultiply, transform, repremultiply. Or require lcms2>=2.13.
}
void
fiv_io_cmm_argb32_premultiply(FivIoCmm *self,
FivIoImage *image, FivIoProfile *source, FivIoProfile *target)
{
fiv_io_profile_xrgb32(image, source, target);
fiv_io_cmm_xrgb32(self, image, source, target);
fiv_io_premultiply_argb32(image);
}
#endif // ! HAVE_LCMS2 || LCMS_VERSION < 2130
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
void
fiv_io_profile_any(
fiv_io_cmm_page(FivIoCmm *self, FivIoImage *page, FivIoProfile *target,
void (*frame_cb) (FivIoCmm *, FivIoImage *, FivIoProfile *, FivIoProfile *))
{
FivIoProfile *source = NULL;
if (page->icc)
source = fiv_io_cmm_get_profile_from_bytes(self, page->icc);
// TODO(p): All animations need to be composited in a linear colour space.
for (FivIoImage *frame = page; frame != NULL; frame = frame->frame_next)
frame_cb(self, frame, source, target);
if (source)
fiv_io_profile_free(source);
}
void
fiv_io_cmm_any(FivIoCmm *self,
FivIoImage *image, FivIoProfile *source, FivIoProfile *target)
{
// TODO(p): Ensure we do colour management early enough, so that
@ -354,9 +441,9 @@ fiv_io_profile_any(
// and also for correct alpha compositing.
switch (image->format) {
break; case CAIRO_FORMAT_RGB24:
fiv_io_profile_xrgb32(image, source, target);
fiv_io_cmm_xrgb32(self, image, source, target);
break; case CAIRO_FORMAT_ARGB32:
fiv_io_profile_argb32(image, source, target);
fiv_io_cmm_argb32(self, image, source, target);
break; default:
g_debug("CM attempted on an unsupported surface format");
}
@ -364,12 +451,12 @@ fiv_io_profile_any(
// TODO(p): Offer better integration, upgrade the bit depth if appropriate.
FivIoImage *
fiv_io_profile_finalize(FivIoImage *image, FivIoProfile *target)
fiv_io_cmm_finish(FivIoCmm *self, FivIoImage *image, FivIoProfile *target)
{
if (!target)
return image;
for (FivIoImage *page = image; page != NULL; page = page->page_next)
fiv_io_profile_page(page, target, fiv_io_profile_any);
fiv_io_cmm_page(self, page, target, fiv_io_cmm_any);
return image;
}

View File

@ -379,6 +379,7 @@ struct load_wuffs_frame_context {
GBytes *meta_iccp; ///< Reference-counted ICC profile
GBytes *meta_xmp; ///< Reference-counted XMP
FivIoCmm *cmm; ///< CMM context, if any
FivIoProfile *target; ///< Target device profile, if any
FivIoProfile *source; ///< Source colour profile, if any
@ -447,11 +448,12 @@ load_wuffs_frame(struct load_wuffs_frame_context *ctx, GError **error)
if (ctx->target) {
if (ctx->expand_16_float || ctx->pack_16_10) {
fiv_io_profile_4x16le_direct(
fiv_io_cmm_4x16le_direct(ctx->cmm,
targetbuf, ctx->width, ctx->height, ctx->source, ctx->target);
// The first one premultiplies below, the second doesn't need to.
} else {
fiv_io_profile_argb32_premultiply(image, ctx->source, ctx->target);
fiv_io_cmm_argb32_premultiply(
ctx->cmm, image, ctx->source, ctx->target);
}
}
@ -589,7 +591,8 @@ open_wuffs(wuffs_base__image_decoder *dec, wuffs_base__io_buffer src,
const FivIoOpenContext *ioctx, GError **error)
{
struct load_wuffs_frame_context ctx = {
.dec = dec, .src = &src, .target = ioctx->screen_profile};
.dec = dec, .src = &src,
.cmm = ioctx->cmm, .target = ioctx->screen_profile};
// TODO(p): PNG text chunks, like we do with PNG thumbnails.
// TODO(p): See if something could and should be done about
@ -673,9 +676,11 @@ open_wuffs(wuffs_base__image_decoder *dec, wuffs_base__io_buffer src,
// TODO(p): Improve our simplistic PNG handling of: gAMA, cHRM, sRGB.
if (ctx.target) {
if (ctx.meta_iccp)
ctx.source = fiv_io_profile_new_from_bytes(ctx.meta_iccp);
ctx.source = fiv_io_cmm_get_profile_from_bytes(
ctx.cmm, ctx.meta_iccp);
else if (isfinite(gamma) && gamma > 0)
ctx.source = fiv_io_profile_new_sRGB_gamma(gamma);
ctx.source = fiv_io_cmm_get_profile_sRGB_gamma(
ctx.cmm, gamma);
}
// Wuffs maps tRNS to BGRA in `decoder.decode_trns?`, we should be fine.
@ -1059,7 +1064,7 @@ parse_exif_profile_subifd(
}
static FivIoProfile *
parse_exif_profile(const void *data, size_t len)
parse_exif_profile(FivIoCmm *cmm, const void *data, size_t len)
{
struct tiffer T = {};
if (!tiffer_init(&T, (const uint8_t *) data, len) || !tiffer_next_ifd(&T))
@ -1091,7 +1096,7 @@ parse_exif_profile(const void *data, size_t len)
// If sRGB is claimed, assume all parameters are standard.
if (params.colorspace == Exif_ColorSpace_sRGB)
return fiv_io_profile_new_sRGB();
return fiv_io_cmm_get_profile_sRGB(cmm);
// AdobeRGB Nikon JPEGs provide all of these.
if (params.colorspace != Exif_ColorSpace_Uncalibrated ||
@ -1100,7 +1105,7 @@ parse_exif_profile(const void *data, size_t len)
!params.have_primaries)
return NULL;
return fiv_io_profile_new_parametric(
return fiv_io_cmm_get_profile_parametric(cmm,
params.gamma, params.whitepoint, params.primaries);
}
@ -1255,17 +1260,17 @@ load_jpeg_finalize(FivIoImage *image, bool cmyk,
g_byte_array_free(meta.icc, TRUE);
FivIoProfile *source = NULL;
if (icc_profile)
source = fiv_io_profile_new(
if (icc_profile && ctx->cmm)
source = fiv_io_cmm_get_profile(ctx->cmm,
g_bytes_get_data(icc_profile, NULL), g_bytes_get_size(icc_profile));
else if (image->exif)
source = parse_exif_profile(
else if (image->exif && ctx->cmm)
source = parse_exif_profile(ctx->cmm,
g_bytes_get_data(image->exif, NULL), g_bytes_get_size(image->exif));
if (cmyk)
fiv_io_profile_cmyk(image, source, ctx->screen_profile);
fiv_io_cmm_cmyk(ctx->cmm, image, source, ctx->screen_profile);
else
fiv_io_profile_any(image, source, ctx->screen_profile);
fiv_io_cmm_any(ctx->cmm, image, source, ctx->screen_profile);
if (source)
fiv_io_profile_free(source);
@ -1666,7 +1671,8 @@ open_libwebp(
WebPDemuxDelete(demux);
if (ctx->screen_profile)
fiv_io_profile_argb32_premultiply_page(result, ctx->screen_profile);
fiv_io_cmm_argb32_premultiply_page(
ctx->cmm, result, ctx->screen_profile);
fail:
WebPFreeDecBuffer(&config.output);
@ -2048,7 +2054,7 @@ open_libraw(
out:
libraw_close(iprc);
return fiv_io_profile_finalize(result, ctx->screen_profile);
return fiv_io_cmm_finish(ctx->cmm, result, ctx->screen_profile);
}
#endif // HAVE_LIBRAW ---------------------------------------------------------
@ -2070,8 +2076,8 @@ load_resvg_destroy(FivIoRenderClosure *closure)
}
static FivIoImage *
load_resvg_render_internal(FivIoRenderClosureResvg *self,
double scale, FivIoProfile *target, GError **error)
load_resvg_render_internal(FivIoRenderClosureResvg *self, double scale,
FivIoCmm *cmm, FivIoProfile *target, GError **error)
{
double w = ceil(self->width * scale), h = ceil(self->height * scale);
if (w > SHRT_MAX || h > SHRT_MAX) {
@ -2101,15 +2107,15 @@ load_resvg_render_internal(FivIoRenderClosureResvg *self,
uint32_t rgba = g_ntohl(pixels[i]);
pixels[i] = rgba << 24 | rgba >> 8;
}
return fiv_io_profile_finalize(image, target);
return fiv_io_cmm_finish(cmm, image, target);
}
static FivIoImage *
load_resvg_render(
FivIoRenderClosure *closure, FivIoProfile *target, double scale)
load_resvg_render(FivIoRenderClosure *closure,
FivIoCmm *cmm, FivIoProfile *target, double scale)
{
FivIoRenderClosureResvg *self = (FivIoRenderClosureResvg *) closure;
return load_resvg_render_internal(self, scale, target, NULL);
return load_resvg_render_internal(self, scale, cmm, target, NULL);
}
static const char *
@ -2167,8 +2173,8 @@ open_resvg(
closure->width = size.width;
closure->height = size.height;
FivIoImage *image =
load_resvg_render_internal(closure, 1., ctx->screen_profile, error);
FivIoImage *image = load_resvg_render_internal(
closure, 1., ctx->cmm, ctx->screen_profile, error);
if (!image) {
load_resvg_destroy(&closure->parent);
return NULL;
@ -2198,7 +2204,7 @@ load_librsvg_destroy(FivIoRenderClosure *closure)
static FivIoImage *
load_librsvg_render_internal(FivIoRenderClosureLibrsvg *self, double scale,
FivIoProfile *target, GError **error)
FivIoCmm *cmm, FivIoProfile *target, GError **error)
{
RsvgRectangle viewport = {.x = 0, .y = 0,
.width = self->width * scale, .height = self->height * scale};
@ -2225,15 +2231,15 @@ load_librsvg_render_internal(FivIoRenderClosureLibrsvg *self, double scale,
fiv_io_image_unref(image);
return NULL;
}
return fiv_io_profile_finalize(image, target);
return fiv_io_cmm_finish(cmm, image, target);
}
static FivIoImage *
load_librsvg_render(
FivIoRenderClosure *closure, FivIoProfile *target, double scale)
load_librsvg_render(FivIoRenderClosure *closure,
FivIoCmm *cmm, FivIoProfile *target, double scale)
{
FivIoRenderClosureLibrsvg *self = (FivIoRenderClosureLibrsvg *) closure;
return load_librsvg_render_internal(self, scale, target, NULL);
return load_librsvg_render_internal(self, scale, cmm, target, NULL);
}
static FivIoImage *
@ -2282,8 +2288,8 @@ open_librsvg(
// librsvg rasterizes filters, so rendering to a recording Cairo surface
// has been abandoned.
FivIoImage *image =
load_librsvg_render_internal(closure, 1., ctx->screen_profile, error);
FivIoImage *image = load_librsvg_render_internal(
closure, 1., ctx->cmm, ctx->screen_profile, error);
if (!image) {
load_librsvg_destroy(&closure->parent);
return NULL;
@ -2599,7 +2605,7 @@ open_libheif(
g_free(ids);
fail_read:
heif_context_free(ctx);
return fiv_io_profile_finalize(result, ioctx->screen_profile);
return fiv_io_cmm_finish(ioctx->cmm, result, ioctx->screen_profile);
}
#endif // HAVE_LIBHEIF --------------------------------------------------------
@ -2830,7 +2836,7 @@ fail:
TIFFSetWarningHandlerExt(whe);
TIFFSetErrorHandler(eh);
TIFFSetWarningHandler(wh);
return fiv_io_profile_finalize(result, ctx->screen_profile);
return fiv_io_cmm_finish(ctx->cmm, result, ctx->screen_profile);
}
#endif // HAVE_LIBTIFF --------------------------------------------------------
@ -2925,9 +2931,10 @@ open_gdkpixbuf(
g_object_unref(pixbuf);
if (custom_argb32)
fiv_io_profile_argb32_premultiply_page(image, ctx->screen_profile);
fiv_io_cmm_argb32_premultiply_page(
ctx->cmm, image, ctx->screen_profile);
else
image = fiv_io_profile_finalize(image, ctx->screen_profile);
image = fiv_io_cmm_finish(ctx->cmm, image, ctx->screen_profile);
return image;
}

View File

@ -25,41 +25,50 @@
typedef enum _FivIoOrientation FivIoOrientation;
typedef struct _FivIoRenderClosure FivIoRenderClosure;
typedef struct _FivIoImage FivIoImage;
typedef struct _FivIoProfile FivIoProfile;
// --- Colour management -------------------------------------------------------
// Note that without a CMM, all FivIoCmm and FivIoProfile will be returned NULL.
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_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);
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
#define FIV_TYPE_IO_CMM (fiv_io_cmm_get_type())
G_DECLARE_FINAL_TYPE(FivIoCmm, fiv_io_cmm, FIV, IO_CMM, GObject)
FivIoCmm *fiv_io_cmm_get_default(void);
FivIoProfile *fiv_io_cmm_get_profile(
FivIoCmm *self, const void *data, size_t len);
FivIoProfile *fiv_io_cmm_get_profile_from_bytes(FivIoCmm *self, GBytes *bytes);
FivIoProfile *fiv_io_cmm_get_profile_sRGB(FivIoCmm *self);
FivIoProfile *fiv_io_cmm_get_profile_sRGB_gamma(FivIoCmm *self, double gamma);
FivIoProfile *fiv_io_cmm_get_profile_parametric(
FivIoCmm *self, double gamma, double whitepoint[2], double primaries[6]);
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
void fiv_io_premultiply_argb32(FivIoImage *image);
void fiv_io_profile_cmyk(
void fiv_io_cmm_cmyk(FivIoCmm *self,
FivIoImage *image, FivIoProfile *source, FivIoProfile *target);
void fiv_io_profile_4x16le_direct(unsigned char *data,
void fiv_io_cmm_4x16le_direct(FivIoCmm *self, 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(
void fiv_io_cmm_argb32_premultiply(FivIoCmm *self,
FivIoImage *image, FivIoProfile *source, FivIoProfile *target);
FivIoImage *fiv_io_profile_finalize(FivIoImage *image, FivIoProfile *target);
#define fiv_io_cmm_argb32_premultiply_page(cmm, page, target) \
fiv_io_cmm_page((cmm), (page), (target), fiv_io_cmm_argb32_premultiply)
void fiv_io_cmm_page(FivIoCmm *self, FivIoImage *page, FivIoProfile *target,
void (*frame_cb) (FivIoCmm *,
FivIoImage *, FivIoProfile *, FivIoProfile *));
void fiv_io_cmm_any(FivIoCmm *self,
FivIoImage *image, FivIoProfile *source, FivIoProfile *target);
FivIoImage *fiv_io_cmm_finish(FivIoCmm *self,
FivIoImage *image, FivIoProfile *target);
// --- Loading -----------------------------------------------------------------
@ -84,7 +93,8 @@ 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 *, FivIoCmm *, FivIoProfile *, double scale);
void (*destroy)(FivIoRenderClosure *);
};
@ -155,7 +165,8 @@ cairo_surface_t *fiv_io_image_to_surface_noref(const FivIoImage *image);
typedef struct {
const char *uri; ///< Source URI
FivIoProfile screen_profile; ///< Target colour space or NULL
FivIoCmm *cmm; ///< Colour management module or NULL
FivIoProfile *screen_profile; ///< Target colour space or NULL
int screen_dpi; ///< Target DPI
gboolean enhance; ///< Enhance JPEG (currently)
gboolean first_frame_only; ///< Only interested in the 1st frame

View File

@ -137,10 +137,12 @@ might_be_a_thumbnail(const char *path_or_uri)
static FivIoImage *
render(GFile *target, GBytes *data, gboolean *color_managed, GError **error)
{
FivIoCmm *cmm = fiv_io_cmm_get_default();
FivIoOpenContext ctx = {
.uri = g_file_get_uri(target),
// Remember to synchronize changes with adjust_thumbnail().
.screen_profile = fiv_io_profile_new_sRGB(),
.cmm = cmm,
.screen_profile = fiv_io_cmm_get_profile_sRGB(cmm),
.screen_dpi = 96,
.first_frame_only = TRUE,
// Only using this array as a redirect.
@ -182,9 +184,11 @@ adjust_thumbnail(FivIoImage *thumbnail, double row_height)
FivIoRenderClosure *closure = thumbnail->render;
if (closure && orientation <= FivIoOrientation0) {
// Remember to synchronize changes with render().
FivIoProfile *screen_profile = fiv_io_profile_new_sRGB();
FivIoCmm *cmm = fiv_io_cmm_get_default();
FivIoProfile *screen_profile = fiv_io_cmm_get_profile_sRGB(cmm);
// This API doesn't accept non-uniform scaling; prefer a vertical fit.
FivIoImage *scaled = closure->render(closure, screen_profile, scale_y);
FivIoImage *scaled =
closure->render(closure, cmm, screen_profile, scale_y);
if (screen_profile)
fiv_io_profile_free(screen_profile);
if (scaled)

View File

@ -417,6 +417,7 @@ prescale_page(FivView *self)
// If it fails, the previous frame pointer may become invalid.
g_clear_pointer(&self->page_scaled, fiv_io_image_unref);
self->frame = self->page_scaled = closure->render(closure,
self->enable_cms ? fiv_io_cmm_get_default() : NULL,
self->enable_cms ? self->screen_cms_profile : NULL, self->scale);
if (!self->page_scaled)
self->frame = self->page;
@ -475,7 +476,8 @@ monitor_cms_profile(GdkWindow *root, int num)
if (gdk_property_get(root, gdk_atom_intern(atom, FALSE), GDK_NONE, 0,
8 << 20 /* MiB */, FALSE, &type, &format, &length, &data)) {
if (format == 8 && length > 0)
result = fiv_io_profile_new(data, length);
result = fiv_io_cmm_get_profile(
fiv_io_cmm_get_default(), data, length);
g_free(data);
}
return result;
@ -525,7 +527,8 @@ reload_screen_cms_profile(FivView *self, GdkWindow *window)
out:
if (!self->screen_cms_profile)
self->screen_cms_profile = fiv_io_profile_new_sRGB();
self->screen_cms_profile =
fiv_io_cmm_get_profile_sRGB(fiv_io_cmm_get_default());
}
static void
@ -1381,6 +1384,7 @@ open_without_swapping_in(FivView *self, const char *uri)
{
FivIoOpenContext ctx = {
.uri = uri,
.cmm = self->enable_cms ? fiv_io_cmm_get_default() : NULL,
.screen_profile = self->enable_cms ? self->screen_cms_profile : NULL,
.screen_dpi = 96, // TODO(p): Try to retrieve it from the screen.
.enhance = self->enhance,

2
fiv.c
View File

@ -2583,8 +2583,6 @@ on_app_handle_local_options(G_GNUC_UNUSED GApplication *app,
return 0;
}
fiv_io_profile_init();
// Normalize all arguments to URIs, and run thumbnailing modes first.
for (gsize i = 0; o.args && o.args[i]; i++) {
GFile *resolved = g_file_new_for_commandline_arg(o.args[i]);

View File

@ -164,7 +164,7 @@ tiff_tables = custom_target('tiff-tables.h',
)
desktops = ['fiv.desktop', 'fiv-browse.desktop']
iolib = static_library('fiv-io', 'fiv-io.c', 'fiv-io-profile.c', 'xdg.c',
iolib = static_library('fiv-io', 'fiv-io.c', 'fiv-io-cmm.c', 'xdg.c',
tiff_tables,
dependencies : dependencies).extract_all_objects(recursive : true)
exe = executable('fiv', 'fiv.c', 'fiv-view.c', 'fiv-context-menu.c',