From b79aee2a2a8991d831bcdfa42b3564d6feded38b Mon Sep 17 00:00:00 2001
From: Leandro Ribeiro <leandro.ribeiro@collabora.com>
Date: Sun, 8 Mar 2026 21:46:53 -0300
Subject: [PATCH] color: add KMS colorop 1D curves to tf_info

Signed-off-by: Leandro Ribeiro <leandro.ribeiro@collabora.com>
---
 libweston/color-properties.c | 28 ++++++++++++++++++++++++++++
 libweston/color-properties.h |  4 ++++
 2 files changed, 32 insertions(+)

diff --git a/libweston/color-properties.c b/libweston/color-properties.c
index 1d39c54fc..6e9913887 100644
--- a/libweston/color-properties.c
+++ b/libweston/color-properties.c
@@ -279,6 +279,8 @@ static const struct weston_color_tf_info color_tf_info_table[] = {
 		.tf = WESTON_TF_BT1886,
 		.desc = "BT.1886",
 		.protocol_tf = WP_COLOR_MANAGER_V1_TRANSFER_FUNCTION_BT1886,
+		.kms_colorop = WDRM_COLOROP_CURVE_1D__COUNT,
+		.kms_colorop_inverse = WDRM_COLOROP_CURVE_1D__COUNT,
 		.count_parameters = 0,
 		/**
 		 * NOTE: This is the BT.1886 special case of L_B = 0 and
@@ -292,6 +294,8 @@ static const struct weston_color_tf_info color_tf_info_table[] = {
 		.tf = WESTON_TF_GAMMA22,
 		.desc = "assumed display gamma 2.2",
 		.protocol_tf = WP_COLOR_MANAGER_V1_TRANSFER_FUNCTION_GAMMA22,
+		.kms_colorop = WDRM_COLOROP_CURVE_1D_GAMMA_22,
+		.kms_colorop_inverse = WDRM_COLOROP_CURVE_1D_GAMMA_22_INV,
 		.count_parameters = 0,
 		.curve_params_valid = true,
 		.curve = POWER_LAW(2.2, true),
@@ -301,6 +305,8 @@ static const struct weston_color_tf_info color_tf_info_table[] = {
 		.tf = WESTON_TF_GAMMA28,
 		.desc = "assumed display gamma 2.8",
 		.protocol_tf = WP_COLOR_MANAGER_V1_TRANSFER_FUNCTION_GAMMA28,
+		.kms_colorop = WDRM_COLOROP_CURVE_1D__COUNT,
+		.kms_colorop_inverse = WDRM_COLOROP_CURVE_1D__COUNT,
 		.count_parameters = 0,
 		.curve_params_valid = true,
 		.curve = POWER_LAW(2.8, true),
@@ -310,12 +316,16 @@ static const struct weston_color_tf_info color_tf_info_table[] = {
 		.tf = WESTON_TF_EXT_LINEAR,
 		.desc = "extended linear",
 		.protocol_tf = WP_COLOR_MANAGER_V1_TRANSFER_FUNCTION_EXT_LINEAR,
+		.kms_colorop = WDRM_COLOROP_CURVE_1D__COUNT,
+		.kms_colorop_inverse = WDRM_COLOROP_CURVE_1D__COUNT,
 		.count_parameters = 0,
 	},
 	{
 		.tf = WESTON_TF_SRGB,
 		.desc = "sRGB piece-wise",
 		.protocol_tf = WP_COLOR_MANAGER_V1_TRANSFER_FUNCTION_SRGB,
+		.kms_colorop = WDRM_COLOROP_CURVE_1D_SRGB_EOTF,
+		.kms_colorop_inverse = WDRM_COLOROP_CURVE_1D_SRGB_INV_EOTF,
 		.count_parameters = 0,
 		.curve_params_valid = true,
 		.curve = SRGB_PIECE_WISE(true),
@@ -325,6 +335,8 @@ static const struct weston_color_tf_info color_tf_info_table[] = {
 		.tf = WESTON_TF_EXT_SRGB,
 		.desc = "Extended sRGB piece-wise",
 		.protocol_tf = WP_COLOR_MANAGER_V1_TRANSFER_FUNCTION_EXT_SRGB,
+		.kms_colorop = WDRM_COLOROP_CURVE_1D__COUNT,
+		.kms_colorop_inverse = WDRM_COLOROP_CURVE_1D__COUNT,
 		.count_parameters = 0,
 		.curve_params_valid = true,
 		.curve = SRGB_PIECE_WISE(false),
@@ -334,47 +346,63 @@ static const struct weston_color_tf_info color_tf_info_table[] = {
 		.tf = WESTON_TF_ST240,
 		.desc = "SMPTE ST 240",
 		.protocol_tf = WP_COLOR_MANAGER_V1_TRANSFER_FUNCTION_ST240,
+		.kms_colorop = WDRM_COLOROP_CURVE_1D__COUNT,
+		.kms_colorop_inverse = WDRM_COLOROP_CURVE_1D__COUNT,
 		.count_parameters = 0,
 	},
 	{
 		.tf = WESTON_TF_ST428,
 		.desc = "SMPTE ST 428",
 		.protocol_tf = WP_COLOR_MANAGER_V1_TRANSFER_FUNCTION_ST428,
+		.kms_colorop = WDRM_COLOROP_CURVE_1D__COUNT,
+		.kms_colorop_inverse = WDRM_COLOROP_CURVE_1D__COUNT,
 		.count_parameters = 0,
 	},
 	{
 		.tf = WESTON_TF_ST2084_PQ,
 		.desc = "Perceptual Quantizer",
 		.protocol_tf = WP_COLOR_MANAGER_V1_TRANSFER_FUNCTION_ST2084_PQ,
+		.kms_colorop = WDRM_COLOROP_CURVE_1D__COUNT,
+		.kms_colorop_inverse = WDRM_COLOROP_CURVE_1D__COUNT,
 		.count_parameters = 0,
 	},
 	{
 		.tf = WESTON_TF_LOG_100,
 		.desc = "logarithmic 100:1",
 		.protocol_tf = WP_COLOR_MANAGER_V1_TRANSFER_FUNCTION_LOG_100,
+		.kms_colorop = WDRM_COLOROP_CURVE_1D__COUNT,
+		.kms_colorop_inverse = WDRM_COLOROP_CURVE_1D__COUNT,
 		.count_parameters = 0,
 	},
 	{
 		.tf = WESTON_TF_LOG_316,
 		.desc = "logarithmic (100*Sqrt(10) : 1)",
 		.protocol_tf = WP_COLOR_MANAGER_V1_TRANSFER_FUNCTION_LOG_316,
+		.kms_colorop = WDRM_COLOROP_CURVE_1D__COUNT,
+		.kms_colorop_inverse = WDRM_COLOROP_CURVE_1D__COUNT,
 		.count_parameters = 0,
 	},
 	{
 		.tf = WESTON_TF_XVYCC,
 		.desc = "IEC 61966-2-4 (xvYCC)",
 		.protocol_tf = WP_COLOR_MANAGER_V1_TRANSFER_FUNCTION_XVYCC,
+		.kms_colorop = WDRM_COLOROP_CURVE_1D__COUNT,
+		.kms_colorop_inverse = WDRM_COLOROP_CURVE_1D__COUNT,
 		.count_parameters = 0,
 	},
 	{
 		.tf = WESTON_TF_HLG,
 		.desc = "Hybrid log-gamma",
 		.protocol_tf = WP_COLOR_MANAGER_V1_TRANSFER_FUNCTION_HLG,
+		.kms_colorop = WDRM_COLOROP_CURVE_1D__COUNT,
+		.kms_colorop_inverse = WDRM_COLOROP_CURVE_1D__COUNT,
 		.count_parameters = 0,
 	},
         {
 		.tf = WESTON_TF_POWER,
 		.desc = "power-law with custom exponent",
+		.kms_colorop = WDRM_COLOROP_CURVE_1D__COUNT,
+		.kms_colorop_inverse = WDRM_COLOROP_CURVE_1D__COUNT,
 		.count_parameters = 1,
         },
 };
diff --git a/libweston/color-properties.h b/libweston/color-properties.h
index 9246446a5..7698242bb 100644
--- a/libweston/color-properties.h
+++ b/libweston/color-properties.h
@@ -110,6 +110,10 @@ struct weston_color_tf_info {
         /** CM&HDR protocol extension value representing the tf. */
         uint32_t protocol_tf;
 
+	/** KMS 1D curve colorop value representing the tf. */
+	uint32_t kms_colorop;
+	uint32_t kms_colorop_inverse;
+
 	/* The protocol also has support for parameterized functions, i.e.
 	 * certain known functions that clients can define passing arbitrary
 	 * parameters. */