From 66ea2e2c9ed4e9257521e6706fbd21feb7e3cc5b Mon Sep 17 00:00:00 2001
From: UjinT34 <41110182+UjinT34@users.noreply.github.com>
Date: Thu, 16 Apr 2026 21:19:25 +0300
Subject: renderer: Various CM fixes, part 8 of refactors (#13860)

Part 8 of Ujin's refactors.
---
 src/managers/PointerManager.cpp               |  6 +++++-
 src/managers/screenshare/ScreenshareFrame.cpp | 16 +++++++++++++---
 2 files changed, 18 insertions(+), 4 deletions(-)

(limited to 'src/managers')

diff --git a/src/managers/PointerManager.cpp b/src/managers/PointerManager.cpp
index 8d3c83f0..04deca9a 100644
--- a/src/managers/PointerManager.cpp
+++ b/src/managers/PointerManager.cpp
@@ -419,8 +419,10 @@ SP<Aquamarine::IBuffer> CPointerManager::renderHWCursorBuffer(SP<CPointerManager
 
     const bool  shouldUseCpuBuffer = *PCPUBUFFER == 1 || (*PCPUBUFFER != 0 && g_pHyprRenderer->isNvidia());
 
-    if (maxSize == Vector2D{})
+    if (maxSize == Vector2D{}) {
+        Log::logger->log(Log::TRACE, "hardware cursor has zero max size {}, current {}", maxSize, m_currentCursorImage.size);
         return nullptr;
+    }
 
     if (maxSize != Vector2D{-1, -1}) {
         if (cursorSize.x > maxSize.x || cursorSize.y > maxSize.y) {
@@ -493,6 +495,8 @@ SP<Aquamarine::IBuffer> CPointerManager::renderHWCursorBuffer(SP<CPointerManager
 
                 if (SURFACE->m_current.texture) {
                     Log::logger->log(Log::TRACE, "Cursor CPU surface: format {}, expecting AR24", NFormatUtils::drmFormatName(SURFACE->m_current.texture->m_drmFormat));
+                    if (!SURFACE->m_current.texture->m_drmFormat)
+                        SURFACE->m_current.texture->m_drmFormat = DRM_FORMAT_ARGB8888; // FIXME assumes DRM_FORMAT_ARGB8888
                     if (SURFACE->m_current.texture->m_drmFormat == DRM_FORMAT_ABGR8888) {
                         Log::logger->log(Log::TRACE, "Cursor CPU surface format AB24, will flip. WARNING: this will break on big endian!");
                         flipRB = true;
diff --git a/src/managers/screenshare/ScreenshareFrame.cpp b/src/managers/screenshare/ScreenshareFrame.cpp
index 47c61fe6..de71fcaa 100644
--- a/src/managers/screenshare/ScreenshareFrame.cpp
+++ b/src/managers/screenshare/ScreenshareFrame.cpp
@@ -171,6 +171,16 @@ void CScreenshareFrame::renderMonitor() {
         return;
     }
 
+    if (!TEXTURE->m_imageDescription)
+        Log::logger->log(Log::ERR, "CM: FIXME no source image description for screenshare");
+
+    if (!g_pHyprRenderer->m_renderData.currentFB->imageDescription())
+        Log::logger->log(Log::ERR, "CM: FIXME no target image description for screenshare");
+
+    if (TEXTURE->m_imageDescription && g_pHyprRenderer->m_renderData.currentFB->imageDescription())
+        Log::logger->log(Log::TRACE, "CM: screenshot renderMonitor {} -> {}", TEXTURE->m_imageDescription->value(),
+                         g_pHyprRenderer->m_renderData.currentFB->imageDescription()->value());
+
     const bool IS_CM_AWARE                        = PROTO::colorManagement && PROTO::colorManagement->isClientCMAware(m_session->m_client);
     g_pHyprRenderer->m_renderData.transformDamage = false;
     g_pHyprRenderer->m_renderData.noSimplify      = true;
@@ -373,7 +383,7 @@ bool CScreenshareFrame::copyDmabuf() {
         LOGM(Log::ERR, "Can't copy: failed to begin rendering to dma frame");
         return false;
     }
-    g_pHyprRenderer->m_renderData.currentFB->setImageDescription(NColorManagement::DEFAULT_IMAGE_DESCRIPTION);
+    g_pHyprRenderer->m_renderData.currentFB->setImageDescription(NColorManagement::DEFAULT_SRGB_IMAGE_DESCRIPTION);
 
     render();
 
@@ -407,7 +417,7 @@ bool CScreenshareFrame::copyShm() {
 
     auto       outFB = g_pHyprRenderer->createFB();
     outFB->alloc(m_bufferSize.x, m_bufferSize.y, shm.format);
-    outFB->setImageDescription(NColorManagement::DEFAULT_IMAGE_DESCRIPTION);
+    outFB->setImageDescription(NColorManagement::DEFAULT_SRGB_IMAGE_DESCRIPTION);
 
     if (!g_pHyprRenderer->beginFullFakeRender(PMONITOR, m_damage, outFB)) {
         LOGM(Log::ERR, "Can't copy: failed to begin rendering");
@@ -440,7 +450,7 @@ void CScreenshareFrame::storeTempFB() {
     if (!m_session->m_tempFB)
         m_session->m_tempFB = g_pHyprRenderer->createFB();
     m_session->m_tempFB->alloc(m_bufferSize.x, m_bufferSize.y);
-    m_session->m_tempFB->setImageDescription(NColorManagement::DEFAULT_IMAGE_DESCRIPTION);
+    m_session->m_tempFB->setImageDescription(NColorManagement::DEFAULT_SRGB_IMAGE_DESCRIPTION);
 
     CRegion fakeDamage = {0, 0, INT16_MAX, INT16_MAX};
 
-- 
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