From c3894d9288e99500df4fc4704bcc614ea8d520ec Mon Sep 17 00:00:00 2001
From: UjinT34 <41110182+UjinT34@users.noreply.github.com>
Date: Sun, 15 Jun 2025 13:15:18 +0300
Subject: config/monitor: Add monitor v2 HDR rules (#10623)

---
 src/helpers/Monitor.cpp | 46 +++++++++++++++++++++++++++++++++++++++++-----
 1 file changed, 41 insertions(+), 5 deletions(-)

(limited to 'src/helpers/Monitor.cpp')

diff --git a/src/helpers/Monitor.cpp b/src/helpers/Monitor.cpp
index c2f1ab5b..df9c4a8e 100644
--- a/src/helpers/Monitor.cpp
+++ b/src/helpers/Monitor.cpp
@@ -464,7 +464,9 @@ bool CMonitor::applyMonitorRule(SMonitorRule* pMonitorRule, bool force) {
         && ((DELTALESSTHAN(m_position.x, RULE->offset.x, 1) && DELTALESSTHAN(m_position.y, RULE->offset.y, 1)) || RULE->offset == Vector2D(-INT32_MAX, -INT32_MAX))
         /* other properties hadnt changed */
         && m_transform == RULE->transform && RULE->enable10bit == m_enabled10bit && RULE->cmType == m_cmType && RULE->sdrSaturation == m_sdrSaturation &&
-        RULE->sdrBrightness == m_sdrBrightness && !std::memcmp(&m_customDrmMode, &RULE->drmMode, sizeof(m_customDrmMode))) {
+        RULE->sdrBrightness == m_sdrBrightness && RULE->sdrMinLuminance == m_minLuminance && RULE->sdrMaxLuminance == m_maxLuminance &&
+        RULE->supportsWideColor == m_supportsWideColor && RULE->supportsHDR == m_supportsHDR && RULE->minLuminance == m_minLuminance && RULE->maxLuminance == m_maxLuminance &&
+        RULE->maxAvgLuminance == m_maxAvgLuminance && !std::memcmp(&m_customDrmMode, &RULE->drmMode, sizeof(m_customDrmMode))) {
 
         Debug::log(LOG, "Not applying a new rule to {} because it's already applied!", m_name);
 
@@ -734,15 +736,16 @@ bool CMonitor::applyMonitorRule(SMonitorRule* pMonitorRule, bool force) {
 
     m_enabled10bit = set10bit;
 
+    m_supportsWideColor = RULE->supportsHDR;
+    m_supportsHDR       = RULE->supportsHDR;
+
     auto oldImageDescription = m_imageDescription;
     m_cmType                 = RULE->cmType;
     switch (m_cmType) {
-        case CM_AUTO: m_cmType = m_enabled10bit && m_output->parsedEDID.supportsBT2020 ? CM_WIDE : CM_SRGB; break;
+        case CM_AUTO: m_cmType = m_enabled10bit && supportsWideColor() ? CM_WIDE : CM_SRGB; break;
         case CM_EDID: m_cmType = m_output->parsedEDID.chromaticityCoords.has_value() ? CM_EDID : CM_SRGB; break;
         case CM_HDR:
-        case CM_HDR_EDID:
-            m_cmType = m_output->parsedEDID.supportsBT2020 && m_output->parsedEDID.hdrMetadata.has_value() && m_output->parsedEDID.hdrMetadata->supportsPQ ? m_cmType : CM_SRGB;
-            break;
+        case CM_HDR_EDID: m_cmType = supportsHDR() ? m_cmType : CM_SRGB; break;
         default: break;
     }
     switch (m_cmType) {
@@ -788,6 +791,19 @@ bool CMonitor::applyMonitorRule(SMonitorRule* pMonitorRule, bool force) {
             break;
         default: UNREACHABLE();
     }
+
+    m_sdrMinLuminance = RULE->sdrMinLuminance;
+    m_sdrMaxLuminance = RULE->sdrMaxLuminance;
+
+    m_minLuminance = RULE->minLuminance;
+    if (m_minLuminance >= 0)
+        m_imageDescription.luminances.min = m_minLuminance;
+    m_maxLuminance = RULE->maxLuminance;
+    if (m_maxLuminance >= 0)
+        m_imageDescription.luminances.max = m_maxLuminance;
+    m_maxAvgLuminance = RULE->maxAvgLuminance;
+    if (m_maxAvgLuminance >= 0)
+        m_imageDescription.luminances.reference = m_maxAvgLuminance;
     if (oldImageDescription != m_imageDescription)
         PROTO::colorManagement->onMonitorImageDescriptionChanged(m_self);
 
@@ -1601,6 +1617,26 @@ void CMonitor::onCursorMovedOnMonitor() {
     m_tearingState.frameScheduledWhileBusy = true;
 }
 
+bool CMonitor::supportsWideColor() {
+    return m_supportsWideColor || m_output->parsedEDID.supportsBT2020;
+}
+
+bool CMonitor::supportsHDR() {
+    return supportsWideColor() && (m_supportsHDR || (m_output->parsedEDID.hdrMetadata.has_value() ? m_output->parsedEDID.hdrMetadata->supportsPQ : false));
+}
+
+float CMonitor::minLuminance() {
+    return m_minLuminance >= 0 ? m_minLuminance : (m_output->parsedEDID.hdrMetadata.has_value() ? m_output->parsedEDID.hdrMetadata->desiredContentMinLuminance : 0);
+}
+
+int CMonitor::maxLuminance() {
+    return m_maxLuminance >= 0 ? m_maxLuminance : (m_output->parsedEDID.hdrMetadata.has_value() ? m_output->parsedEDID.hdrMetadata->desiredContentMaxLuminance : 80);
+}
+
+int CMonitor::maxAvgLuminance() {
+    return m_maxAvgLuminance >= 0 ? m_maxAvgLuminance : (m_output->parsedEDID.hdrMetadata.has_value() ? m_output->parsedEDID.hdrMetadata->desiredMaxFrameAverageLuminance : 80);
+}
+
 CMonitorState::CMonitorState(CMonitor* owner) : m_owner(owner) {
     ;
 }
-- 
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