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drm/i915: Extract ilk_csc_limited_range() 

Extract a helper which determines if we need to use the
pipe CSC for limited range RGB output.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190218193137.22914-4-ville.syrjala@linux.intel.com
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
This commit is contained in:
Ville Syrjälä 2019-02-18 21:31:33 +02:00
parent 9fdfb8e730
commit 386ba08fb5
1 changed files with 15 additions and 9 deletions
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24
drivers/gpu/drm/i915/intel_color.c
View File

@ -161,21 +161,27 @@ static void ilk_load_ycbcr_conversion_matrix(struct intel_crtc *crtc)
}
}
static void ilk_load_csc_matrix(const struct intel_crtc_state *crtc_state)
static bool ilk_csc_limited_range(const struct intel_crtc_state *crtc_state)
{
struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
bool limited_color_range = false;
enum pipe pipe = crtc->pipe;
u16 coeffs[9] = {};
int i;
struct drm_i915_private *dev_priv = to_i915(crtc_state->base.crtc->dev);
/*
* FIXME if there's a gamma LUT after the CSC, we should
* do the range compression using the gamma LUT instead.
*/
if (INTEL_GEN(dev_priv) >= 8 || IS_HASWELL(dev_priv))
limited_color_range = crtc_state->limited_color_range;
return crtc_state->limited_color_range &&
(IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv) ||
IS_GEN_RANGE(dev_priv, 9, 10));
}
static void ilk_load_csc_matrix(const struct intel_crtc_state *crtc_state)
{
struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
bool limited_color_range = ilk_csc_limited_range(crtc_state);
enum pipe pipe = crtc->pipe;
u16 coeffs[9] = {};
int i;
if (crtc_state->output_format == INTEL_OUTPUT_FORMAT_YCBCR420 ||
crtc_state->output_format == INTEL_OUTPUT_FORMAT_YCBCR444) {