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From: Ville Syrjala <ville.syrjala@linux.intel.com>
To: intel-gfx@lists.freedesktop.org
Subject: [PATCH 5/7] drm/i915: Extract ilk_csc_convert_ctm()
Date: Mon, 18 Feb 2019 21:31:35 +0200	[thread overview]
Message-ID: <20190218193137.22914-6-ville.syrjala@linux.intel.com> (raw)
In-Reply-To: <20190218193137.22914-1-ville.syrjala@linux.intel.com>

From: Ville Syrjälä <ville.syrjala@linux.intel.com>

Start splitting low level nuts and bots stuff from
ilk_load_csc_matrix(). The goal is to leave only the clear
high level logic in place.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
 drivers/gpu/drm/i915/intel_color.c | 97 ++++++++++++++++--------------
 1 file changed, 53 insertions(+), 44 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_color.c b/drivers/gpu/drm/i915/intel_color.c
index 61cb69058b35..0be7b7e802f5 100644
--- a/drivers/gpu/drm/i915/intel_color.c
+++ b/drivers/gpu/drm/i915/intel_color.c
@@ -188,6 +188,58 @@ static bool ilk_csc_limited_range(const struct intel_crtc_state *crtc_state)
 		 IS_GEN_RANGE(dev_priv, 9, 10));
 }
 
+static void ilk_csc_convert_ctm(const struct intel_crtc_state *crtc_state,
+				u16 coeffs[9])
+{
+	const struct drm_color_ctm *ctm = crtc_state->base.ctm->data;
+	const u64 *input;
+	u64 temp[9];
+	int i;
+
+	if (ilk_csc_limited_range(crtc_state))
+		input = ctm_mult_by_limited(temp, ctm->matrix);
+	else
+		input = ctm->matrix;
+
+	/*
+	 * Convert fixed point S31.32 input to format supported by the
+	 * hardware.
+	 */
+	for (i = 0; i < 9; i++) {
+		u64 abs_coeff = ((1ULL << 63) - 1) & input[i];
+
+		/*
+		 * Clamp input value to min/max supported by
+		 * hardware.
+		 */
+		abs_coeff = clamp_val(abs_coeff, 0, CTM_COEFF_4_0 - 1);
+
+		coeffs[i] = 0;
+
+		/* sign bit */
+		if (CTM_COEFF_NEGATIVE(input[i]))
+			coeffs[i] |= 1 << 15;
+
+		if (abs_coeff < CTM_COEFF_0_125)
+			coeffs[i] |= (3 << 12) |
+				ILK_CSC_COEFF_FP(abs_coeff, 12);
+		else if (abs_coeff < CTM_COEFF_0_25)
+			coeffs[i] |= (2 << 12) |
+				ILK_CSC_COEFF_FP(abs_coeff, 11);
+		else if (abs_coeff < CTM_COEFF_0_5)
+			coeffs[i] |= (1 << 12) |
+				ILK_CSC_COEFF_FP(abs_coeff, 10);
+		else if (abs_coeff < CTM_COEFF_1_0)
+			coeffs[i] |= ILK_CSC_COEFF_FP(abs_coeff, 9);
+		else if (abs_coeff < CTM_COEFF_2_0)
+			coeffs[i] |= (7 << 12) |
+				ILK_CSC_COEFF_FP(abs_coeff, 8);
+		else
+			coeffs[i] |= (6 << 12) |
+				ILK_CSC_COEFF_FP(abs_coeff, 7);
+	}
+}
+
 static void ilk_load_csc_matrix(const struct intel_crtc_state *crtc_state)
 {
 	struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
@@ -218,50 +270,7 @@ static void ilk_load_csc_matrix(const struct intel_crtc_state *crtc_state)
 	}
 
 	if (crtc_state->base.ctm) {
-		struct drm_color_ctm *ctm = crtc_state->base.ctm->data;
-		const u64 *input;
-		u64 temp[9];
-
-		if (limited_color_range)
-			input = ctm_mult_by_limited(temp, ctm->matrix);
-		else
-			input = ctm->matrix;
-
-		/*
-		 * Convert fixed point S31.32 input to format supported by the
-		 * hardware.
-		 */
-		for (i = 0; i < ARRAY_SIZE(coeffs); i++) {
-			u64 abs_coeff = ((1ULL << 63) - 1) & input[i];
-
-			/*
-			 * Clamp input value to min/max supported by
-			 * hardware.
-			 */
-			abs_coeff = clamp_val(abs_coeff, 0, CTM_COEFF_4_0 - 1);
-
-			/* sign bit */
-			if (CTM_COEFF_NEGATIVE(input[i]))
-				coeffs[i] |= 1 << 15;
-
-			if (abs_coeff < CTM_COEFF_0_125)
-				coeffs[i] |= (3 << 12) |
-					ILK_CSC_COEFF_FP(abs_coeff, 12);
-			else if (abs_coeff < CTM_COEFF_0_25)
-				coeffs[i] |= (2 << 12) |
-					ILK_CSC_COEFF_FP(abs_coeff, 11);
-			else if (abs_coeff < CTM_COEFF_0_5)
-				coeffs[i] |= (1 << 12) |
-					ILK_CSC_COEFF_FP(abs_coeff, 10);
-			else if (abs_coeff < CTM_COEFF_1_0)
-				coeffs[i] |= ILK_CSC_COEFF_FP(abs_coeff, 9);
-			else if (abs_coeff < CTM_COEFF_2_0)
-				coeffs[i] |= (7 << 12) |
-					ILK_CSC_COEFF_FP(abs_coeff, 8);
-			else
-				coeffs[i] |= (6 << 12) |
-					ILK_CSC_COEFF_FP(abs_coeff, 7);
-		}
+		ilk_csc_convert_ctm(crtc_state, coeffs);
 	} else {
 		/*
 		 * Load an identity matrix if no coefficients are provided.
-- 
2.19.2

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  parent reply	other threads:[~2019-02-18 19:31 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-18 19:31 [PATCH 0/7] drm/i915: Clean up ilk+ csc stuff Ville Syrjala
2019-02-18 19:31 ` [PATCH 1/7] drm/i915: Readout and check csc_mode Ville Syrjala
2019-03-13 14:59   ` Shankar, Uma
2019-02-18 19:31 ` [PATCH 2/7] drm/i915: Preocmpute/readout/check CHV CGM mode Ville Syrjala
2019-03-13 15:11   ` Shankar, Uma
2019-03-15 20:38     ` Ville Syrjälä
2019-02-18 19:31 ` [PATCH 3/7] drm/i915: Extract ilk_csc_limited_range() Ville Syrjala
2019-03-13 15:30   ` Shankar, Uma
2019-03-13 16:31     ` Ville Syrjälä
2019-03-14  8:12       ` Shankar, Uma
2019-02-18 19:31 ` [PATCH 4/7] drm/i915: Clean up ilk/icl pipe/output CSC programming Ville Syrjala
2019-03-13 16:38   ` Shankar, Uma
2019-03-13 19:51     ` Ville Syrjälä
2019-03-14 13:23       ` Shankar, Uma
2019-02-18 19:31 ` Ville Syrjala [this message]
2019-03-13 16:55   ` [PATCH 5/7] drm/i915: Extract ilk_csc_convert_ctm() Shankar, Uma
2019-02-18 19:31 ` [PATCH 6/7] drm/i915: Clean the csc limited range/identity programming Ville Syrjala
2019-03-13 17:07   ` Shankar, Uma
2019-02-18 19:31 ` [PATCH 7/7] drm/i915: Split ilk vs. icl csc matrix handling Ville Syrjala
2019-03-13 17:19   ` Shankar, Uma
2019-02-18 20:11 ` ✗ Fi.CI.SPARSE: warning for drm/i915: Clean up ilk+ csc stuff Patchwork
2019-02-18 20:35 ` ✗ Fi.CI.BAT: failure " Patchwork
2019-03-14 13:41   ` Ville Syrjälä
2019-03-15 16:36 ` ✓ Fi.CI.BAT: success for drm/i915: Clean up ilk+ csc stuff (rev2) Patchwork
2019-03-15 18:19 ` ✗ Fi.CI.IGT: failure " Patchwork
2019-03-15 19:58   ` Ville Syrjälä

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