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Commit 386ba08f authored by Ville Syrjälä's avatar Ville Syrjälä
Browse files

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: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190218193137.22914-4-ville.syrjala@linux.intel.com


Reviewed-by: default avatarUma Shankar <uma.shankar@intel.com>
parent 9fdfb8e7

drivers/gpu/drm/i915/intel_color.c

+14 −8
Original line number Diff line number Diff line
@@ -161,22 +161,28 @@ static void ilk_load_ycbcr_conversion_matrix(struct intel_crtc *crtc) 
	}

}



static bool ilk_csc_limited_range(const struct intel_crtc_state *crtc_state)

{

	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.

	 */

	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 = false;

	bool limited_color_range = ilk_csc_limited_range(crtc_state);

	enum pipe pipe = crtc->pipe;

	u16 coeffs[9] = {};

	int i;



	/*

	 * 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;



	if (crtc_state->output_format == INTEL_OUTPUT_FORMAT_YCBCR420 ||

	    crtc_state->output_format == INTEL_OUTPUT_FORMAT_YCBCR444) {

		ilk_load_ycbcr_conversion_matrix(crtc);