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| author | Geert Uytterhoeven <geert@linux-m68k.org> | 2022-07-08 20:21:08 +0200 |
|---|---|---|
| committer | Noralf Trønnes <noralf@tronnes.org> | 2022-07-19 16:15:50 +0200 |
| commit | 4d9db10576ff51afa8cf7727fbad55ada299359b (patch) | |
| tree | a2ce8b5a3d1ea13212cb169035469b555f78d7fe /tools/perf/scripts/python/stackcollapse.py | |
| parent | 14e7157afb055248ed34901fcd6fbf54201cfea1 (diff) | |
drm/format-helper: Fix endianness in drm_fb_*_to_*() conversion helpers
DRM formats are defined to be little-endian, unless the
DRM_FORMAT_BIG_ENDIAN flag is set. Hence when converting from one
format to another, multi-byte pixel values loaded from memory must be
converted from little-endian to host-endian. Conversely, multi-byte
pixel values written to memory must be converted from host-endian to
little-endian. Currently only drm_fb_xrgb8888_to_rgb332_line() includes
endianness handling.
Fix this by adding endianness handling to all conversion functions that
process multi-byte pixel values.
Note that the conversion to RGB565 is special, as there are two
versions: with and without byteswapping of the RGB565 pixel data.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Link: https://patchwork.freedesktop.org/patch/msgid/33f390d3bae2c5a45c0050097dc95f2e17644f2f.1657300532.git.geert@linux-m68k.org
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions