AuroraMiddleware/gtk
1
0
Fork 1
mirror of https://gitlab.gnome.org/GNOME/gtk.git synced 2024-11-09 10:20:07 +00:00
Code Issues Projects Releases Wiki Activity

memoryformat: Add fast path for mipmap

Browse Source 
We have fast conversion functions, use those directly instead of calling
into gdk_memory_convert().

This is useful because as mentioned before, the main optimization here
is RGB8 => RGBA8 and we have a fastpath for that.
This commit is contained in:
Benjamin Otte 2024-08-27 06:13:06 +02:00 committed by Matthias Clasen
parent cea961f4f4
commit 534a9b6ba0
1 changed files with 11 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
gdk/gdkmemoryformat.c
View File

@ -1939,7 +1939,9 @@ unpremultiply (float (*rgba)[4],
}
}
typedef void (* FastConversionFunc) (guchar *, const guchar *, gsize);
typedef void (* FastConversionFunc) (guchar *dest,
const guchar *src,
gsize n);
static FastConversionFunc
get_fast_conversion_func (GdkMemoryFormat dest_format,
@ -2406,6 +2408,7 @@ gdk_memory_mipmap (guchar *dest,
}
else
{
FastConversionFunc func;
gsize dest_width;
gsize size;
guchar *tmp;
@ -2415,13 +2418,17 @@ gdk_memory_mipmap (guchar *dest,
dest_width = (src_width + n - 1) >> lod_level;
size = gdk_memory_format_bytes_per_pixel (src_format) * dest_width;
tmp = g_malloc (size);
func = get_fast_conversion_func (dest_format, src_format);
for (y = 0; y < src_height; y += n)
{
desc->mipmap (tmp, (size + 7) & 7, src, src_stride, src_width, MIN (n, src_height - y), lod_level);
gdk_memory_convert (dest, dest_stride, dest_format, GDK_COLOR_STATE_SRGB,
tmp, (size + 7) & 7, src_format, GDK_COLOR_STATE_SRGB,
dest_width, 1);
if (func)
func (dest, tmp, dest_width);
else
gdk_memory_convert (dest, dest_stride, dest_format, GDK_COLOR_STATE_SRGB,
tmp, (size + 7) & 7, src_format, GDK_COLOR_STATE_SRGB,
dest_width, 1);
dest += dest_stride;
src += n * src_stride;
}