diff options
| author | Leo (Sunpeng) Li <sunpeng.li@amd.com> | 2018-04-12 17:46:41 -0400 |
|---|---|---|
| committer | Arkadiusz Hiler <arkadiusz.hiler@intel.com> | 2018-04-14 01:05:27 +0300 |
| commit | 0941f7c3dee6633b518510ccd0cb25af2acbc55e (patch) | |
| tree | 165b9a5671b6c7bcaf2a3f69b43745e9d62dcd26 /tests/kms_color.c | |
| parent | cf409424af808d258ccc8a4df7404208aafb54b3 (diff) | |
tests/kms_color: Do not mask LUT for non i915 drivers.
Masking assumes a direct relationship between the software LUT
structure, and hardware LUT. This is not always the case.
On AMD hardware for example, the hardware LUT is composed of
piecewise-linear segments, with end-point spaced exponentially along the
X axis, while software LUT is spaced linearly. Masking the LUT for the
purpose of truncating the resulting colors won't work here.
v2: Add commit message and sign off.
Signed-off-by: Leo (Sunpeng) Li <sunpeng.li@amd.com>
Acked-by: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
Diffstat (limited to 'tests/kms_color.c')
| -rw-r--r-- | tests/kms_color.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/tests/kms_color.c b/tests/kms_color.c index c3126977..1e51917d 100644 --- a/tests/kms_color.c +++ b/tests/kms_color.c @@ -165,7 +165,12 @@ static struct _drm_color_lut *coeffs_to_lut(data_t *data, struct _drm_color_lut *lut; uint32_t i; uint32_t max_value = (1 << 16) - 1; - uint32_t mask = ((1 << color_depth) - 1) << 8; + uint32_t mask; + + if (is_i915_device(data->drm_fd)) + mask = ((1 << color_depth) - 1) << 8; + else + mask = max_value; lut = malloc(sizeof(struct _drm_color_lut) * lut_size); |