Add a 3D LUT mode supported by amdgpu driver.
Note: A patchset "IGT tests for pre-blending 3D LUT interfaces" for this
proposal is sent to IGT mailing list.
Signed-off-by: Alex Hung <alex.hung@xxxxxxx>
---
.../gpu/drm/amd/display/modules/color/color_gamma.h | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/modules/color/color_gamma.h b/drivers/gpu/drm/amd/display/modules/color/color_gamma.h
index e06e0a8effc8..aceb23b03a4b 100644
--- a/drivers/gpu/drm/amd/display/modules/color/color_gamma.h
+++ b/drivers/gpu/drm/amd/display/modules/color/color_gamma.h
@@ -27,6 +27,7 @@
#define COLOR_MOD_COLOR_GAMMA_H_
#include "color_table.h"
+#include <drm/drm_fourcc.h>
struct dc_transfer_func;
struct dc_gamma;
@@ -35,6 +36,17 @@ struct dc_rgb_fixed;
struct dc_color_caps;
enum dc_transfer_func_predefined;
+/*
+ * 3D LUT mode for 17x17x17 LUT and 12 bits of color depth
+ */
+static const struct drm_mode_3dlut_mode lut_3d_mode_17_12bit = {
+ .lut_size = 17,
+ .lut_stride = {17, 17, 18},
+ .bit_depth = 12,
+ .color_format = DRM_FORMAT_XRGB16161616,
+ .flags = 0,
+};
+
static const struct drm_color_lut_range nonlinear_pwl[] = {
{
.flags = (DRM_MODE_LUT_GAMMA | DRM_MODE_LUT_REFLECT_NEGATIVE | DRM_MODE_LUT_INTERPOLATE | DRM_MODE_LUT_REUSE_LAST | DRM_MODE_LUT_NON_DECREASING),
--
2.37.3
