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texture: Refactor gdk_texture_new_from_bytes()

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1. Split into a real loader and a fake one

2. Only try the fake one if the real one doesn't support the file.
This commit is contained in:
Benjamin Otte 2021-09-17 03:42:27 +02:00
parent b271a94f92
commit fae32846c7
1 changed files with 62 additions and 27 deletions
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89
gdk/gdktexture.c
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@ -41,6 +41,7 @@
#include "gdktextureprivate.h"
#include "gdkinternals.h"
#include "gdkintl.h"
#include "gdkmemorytextureprivate.h"
#include "gdkpaintable.h"
#include "gdksnapshot.h"
@ -418,6 +419,52 @@ gdk_texture_can_load (GBytes *bytes)
gdk_is_tiff (bytes);
}
static GdkTexture *
gdk_texture_new_from_bytes_internal (GBytes *bytes,
GError **error)
{
if (gdk_is_png (bytes))
{
return gdk_load_png (bytes, error);
}
else if (gdk_is_jpeg (bytes))
{
return gdk_load_jpeg (bytes, error);
}
else if (gdk_is_tiff (bytes))
{
return gdk_load_tiff (bytes, error);
}
else
{
g_set_error_literal (error,
GDK_TEXTURE_ERROR, GDK_TEXTURE_ERROR_UNSUPPORTED_FORMAT,
_("Unknown image format."));
return NULL;
}
}
static GdkTexture *
gdk_texture_new_from_bytes_pixbuf (GBytes *bytes,
GError **error)
{
GInputStream *stream;
GdkPixbuf *pixbuf;
GdkTexture *texture;
stream = g_memory_input_stream_new_from_bytes (bytes);
pixbuf = gdk_pixbuf_new_from_stream (stream, NULL, error);
g_object_unref (stream);
if (pixbuf == NULL)
return NULL;
texture = gdk_texture_new_for_pixbuf (pixbuf);
g_object_unref (pixbuf);
return texture;
}
/**
* gdk_texture_new_from_bytes:
* @bytes: a `GBytes` containing the data to load
@ -438,38 +485,26 @@ GdkTexture *
gdk_texture_new_from_bytes (GBytes *bytes,
GError **error)
{
GdkTexture *texture;
GError *internal_error = NULL;
g_return_val_if_fail (bytes != NULL, NULL);
g_return_val_if_fail (error == NULL || *error == NULL, NULL);
if (gdk_is_png (bytes))
{
return gdk_load_png (bytes, error);
}
else if (gdk_is_jpeg (bytes))
{
return gdk_load_jpeg (bytes, error);
}
else if (gdk_is_tiff (bytes))
{
return gdk_load_tiff (bytes, error);
}
else
{
GInputStream *stream;
GdkPixbuf *pixbuf;
GdkTexture *texture;
texture = gdk_texture_new_from_bytes_internal (bytes, &internal_error);
if (texture)
return texture;
stream = g_memory_input_stream_new_from_bytes (bytes);
pixbuf = gdk_pixbuf_new_from_stream (stream, NULL, error);
g_object_unref (stream);
if (pixbuf == NULL)
return NULL;
texture = gdk_texture_new_for_pixbuf (pixbuf);
g_object_unref (pixbuf);
return texture;
if (!g_error_matches (internal_error, GDK_TEXTURE_ERROR, GDK_TEXTURE_ERROR_UNSUPPORTED_CONTENT) &&
!g_error_matches (internal_error, GDK_TEXTURE_ERROR, GDK_TEXTURE_ERROR_UNSUPPORTED_FORMAT))
{
g_propagate_error (error, internal_error);
return NULL;
}
g_clear_error (&internal_error);
return gdk_texture_new_from_bytes_pixbuf (bytes, error);
}
/**