[Intel-gfx] [RFC v2 08/22] drm/i915/xelpd: Add color capabilities of SDR planes

Uma Shankar
2021-09-06T21:01:44Z

Add the Color capabilities of SDR planes.

Signed-off-by: Uma Shankar <uma.shankar@intel.com>
Signed-off-by: Bhanuprakash Modem <bhanuprakash.modem@intel.com>
---
drivers/gpu/drm/i915/display/intel_color.c | 67 ++++++++++++++++++++--
1 file changed, 63 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c
index 2307a2e4d73d..fd0bfdf85703 100644
--- a/drivers/gpu/drm/i915/display/intel_color.c
+++ b/drivers/gpu/drm/i915/display/intel_color.c
@@ -25,6 +25,7 @@
#include "intel_color.h"
#include "intel_de.h"
#include "intel_display_types.h"
+#include "intel_sprite.h"
#include <drm/drm_plane.h>

#define CTM_COEFF_SIGN (1ULL << 63)
@@ -2144,6 +2145,57 @@ static const struct drm_color_lut_range d13_degamma_hdr[] = {
},
};

+ /* FIXME input bpc? */
+static const struct drm_color_lut_range d13_degamma_sdr[] = {
+ /* segment 1 */
+ {
+ .flags = (DRM_MODE_LUT_GAMMA |
+ DRM_MODE_LUT_REFLECT_NEGATIVE |
+ DRM_MODE_LUT_INTERPOLATE |
+ DRM_MODE_LUT_NON_DECREASING),
+ .count = 32,
+ .input_bpc = 16, .output_bpc = 16,
+ .start = 0, .end = (1 << 16) - (1 << 16) / 33,
+ .min = 0, .max = (1 << 16) - 1,
+ },
+ /* segment 2 */
+ {
+ .flags = (DRM_MODE_LUT_GAMMA |
+ DRM_MODE_LUT_REFLECT_NEGATIVE |
+ DRM_MODE_LUT_INTERPOLATE |
+ DRM_MODE_LUT_REUSE_LAST |
+ DRM_MODE_LUT_NON_DECREASING),
+ .count = 1,
+ .input_bpc = 16, .output_bpc = 16,
+ .start = (1 << 16) - (1 << 16) / 33, .end = 1 << 16,
+ .min = 0, .max = 1 << 16,
+ },
+ /* Segment 3 */
+ {
+ .flags = (DRM_MODE_LUT_GAMMA |
+ DRM_MODE_LUT_REFLECT_NEGATIVE |
+ DRM_MODE_LUT_INTERPOLATE |
+ DRM_MODE_LUT_REUSE_LAST |
+ DRM_MODE_LUT_NON_DECREASING),
+ .count = 1,
+ .input_bpc = 16, .output_bpc = 16,
+ .start = 1 << 16, .end = 3 << 16,
+ .min = 0, .max = (8 << 16) - 1,
+ },
+ /* Segment 4 */
+ {
+ .flags = (DRM_MODE_LUT_GAMMA |
+ DRM_MODE_LUT_REFLECT_NEGATIVE |
+ DRM_MODE_LUT_INTERPOLATE |
+ DRM_MODE_LUT_REUSE_LAST |
+ DRM_MODE_LUT_NON_DECREASING),
+ .count = 1,
+ .input_bpc = 16, .output_bpc = 16,
+ .start = 3 << 16, .end = 7 << 16,
+ .min = 0, .max = (8 << 16) - 1,
+ },
+};
+
int intel_plane_color_init(struct drm_plane *plane)
{
struct drm_i915_private *dev_priv = to_i915(plane->dev);
@@ -2154,10 +2206,17 @@ int intel_plane_color_init(struct drm_plane *plane)
ret = drm_plane_color_add_gamma_degamma_mode_range(plane, "no degamma",
NULL, 0,
LUT_TYPE_DEGAMMA);
- ret = drm_plane_color_add_gamma_degamma_mode_range(plane, "plane degamma",
- d13_degamma_hdr,
- sizeof(d13_degamma_hdr),
- LUT_TYPE_DEGAMMA);
+ if (icl_is_hdr_plane(dev_priv, to_intel_plane(plane)->id))
+ ret = drm_plane_color_add_gamma_degamma_mode_range(plane, "plane degamma",
+ d13_degamma_hdr,
+ sizeof(d13_degamma_hdr),
+ LUT_TYPE_DEGAMMA);
+ else
+ ret = drm_plane_color_add_gamma_degamma_mode_range(plane,
+ "plane degamma",
+ d13_degamma_sdr,
+ sizeof(d13_degamma_sdr),
+ LUT_TYPE_DEGAMMA);
drm_plane_attach_degamma_properties(plane);
}

--
2.26.2