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Prepare for parallelized colour management

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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
7 changed files with 412 additions and 301 deletions
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8
fiv-view.c
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@@ -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,