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| author | Jakub Kicinski <kuba@kernel.org> | 2024-03-22 02:14:13 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-03-22 02:15:08 +0300 |
| commit | 537c2e91d3549e5d6020bb0576cf9b54a845255f (patch) | |
| tree | c09e8a1b7d733cde19b0c72678c28fb2bc97ff6b /drivers/gpu/drm/vkms/vkms_composer.c | |
| parent | 237bb5f7f7f55ec5f773469a974c61a49c298625 (diff) | |
| parent | cba9ffdb9913dfe6be29f049ce920ce451ce7cc4 (diff) | |
| download | linux-537c2e91d3549e5d6020bb0576cf9b54a845255f.tar.xz | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/gpu/drm/vkms/vkms_composer.c')
| -rw-r--r-- | drivers/gpu/drm/vkms/vkms_composer.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/gpu/drm/vkms/vkms_composer.c b/drivers/gpu/drm/vkms/vkms_composer.c index 3c99fb8b54e2..e7441b227b3c 100644 --- a/drivers/gpu/drm/vkms/vkms_composer.c +++ b/drivers/gpu/drm/vkms/vkms_composer.c @@ -123,6 +123,8 @@ static u16 apply_lut_to_channel_value(const struct vkms_color_lut *lut, u16 chan enum lut_channel channel) { s64 lut_index = get_lut_index(lut, channel_value); + u16 *floor_lut_value, *ceil_lut_value; + u16 floor_channel_value, ceil_channel_value; /* * This checks if `struct drm_color_lut` has any gap added by the compiler @@ -130,11 +132,15 @@ static u16 apply_lut_to_channel_value(const struct vkms_color_lut *lut, u16 chan */ static_assert(sizeof(struct drm_color_lut) == sizeof(__u16) * 4); - u16 *floor_lut_value = (__u16 *)&lut->base[drm_fixp2int(lut_index)]; - u16 *ceil_lut_value = (__u16 *)&lut->base[drm_fixp2int_ceil(lut_index)]; + floor_lut_value = (__u16 *)&lut->base[drm_fixp2int(lut_index)]; + if (drm_fixp2int(lut_index) == (lut->lut_length - 1)) + /* We're at the end of the LUT array, use same value for ceil and floor */ + ceil_lut_value = floor_lut_value; + else + ceil_lut_value = (__u16 *)&lut->base[drm_fixp2int_ceil(lut_index)]; - u16 floor_channel_value = floor_lut_value[channel]; - u16 ceil_channel_value = ceil_lut_value[channel]; + floor_channel_value = floor_lut_value[channel]; + ceil_channel_value = ceil_lut_value[channel]; return lerp_u16(floor_channel_value, ceil_channel_value, lut_index & DRM_FIXED_DECIMAL_MASK); |