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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 18:48:00 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 18:48:00 +0000 |
| commit | e313beb668f41d49c10c546180fc02c62ab2cbe3 (patch) | |
| tree | 154cbe88a0957f3ed27428f536ad06681af563dd /drivers/gpu/drm/vkms/vkms_composer.c | |
| parent | Releasing progress-linux version 6.7.9-2~progress7.99u1. (diff) | |
| download | linux-e313beb668f41d49c10c546180fc02c62ab2cbe3.tar.xz linux-e313beb668f41d49c10c546180fc02c62ab2cbe3.zip | |
Merging upstream version 6.7.12.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.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 3c99fb8b54..e7441b227b 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); |