File 0008-base-Add-an-EplImplFuncs-function-for-eglSetDamageRe.patch of Package libnvidia-egl-wayland2

From 83c95316e8758ae46232d78d7425fdefcedb603c Mon Sep 17 00:00:00 2001
From: Kyle Brenneman <kbrenneman@nvidia.com>
Date: Tue, 14 Oct 2025 16:49:33 -0600
Subject: [PATCH 08/18] base: Add an EplImplFuncs function for
 eglSetDamageRegionKHR

Add an optional EplImplFuncs::SetDamageRegion function to implement
eglSetDamageRegionKHR.
---
 src/base/platform-base.c | 23 ++++++++++++++++-------
 src/base/platform-impl.h | 14 ++++++++++++++
 2 files changed, 30 insertions(+), 7 deletions(-)

diff --git a/src/base/platform-base.c b/src/base/platform-base.c
index f746fe3..18196bd 100644
--- a/src/base/platform-base.c
+++ b/src/base/platform-base.c
@@ -1409,14 +1409,23 @@ static EGLBoolean HookSetDamageRegion(EGLDisplay edpy, EGLSurface esurf, EGLint
             goto done;
         }
 
-        /*
-         * Here's where we'd optionally call into the platform-specific code.
-         * Since eglSetDamageRegionKHR is just a hint, it's also valid to just
-         * ignore it.
-         */
+        if (pdpy->platform->impl->SetDamageRegion != NULL)
+        {
+            ret = pdpy->platform->impl->SetDamageRegion(pdpy, psurf, rects, n_rects);
+        }
+        else
+        {
+            /*
+             * eglSetDamageRegionKHR is just a hint, so if the platform doesn't
+             * do anything with it, we can still return success.
+             */
+            ret = EGL_TRUE;
+        }
 
-        psurf->setDamageRegionCalled = EGL_TRUE;
-        ret = EGL_TRUE;
+        if (ret)
+        {
+            psurf->setDamageRegionCalled = EGL_TRUE;
+        }
     }
     else if (pdpy->platform->egl.SetDamageRegionKHR != NULL)
     {
diff --git a/src/base/platform-impl.h b/src/base/platform-impl.h
index d767f3b..b6f5dad 100644
--- a/src/base/platform-impl.h
+++ b/src/base/platform-impl.h
@@ -321,6 +321,20 @@ typedef struct _EplImplFuncs
      * \return The buffer age, or -1 on error.
      */
     EGLint (* QueryBufferAge) (EplDisplay *pdpy, EplSurface *psurf);
+
+    /**
+     * Implements eglSetDamageRegionKHR.
+     *
+     * This function is optional. If it's NULL, then the base library will
+     * ignore the damage areas and return success.
+     *
+     * \param pdpy The current display.
+     * \param psurf The current draw surface. This will never be NULL.
+     * \param rects The damage rectangles.
+     * \param n_rects The number of elements in the \p rects array.
+     * \return EGL_TRUE on success, or EGL_FALSE on failure.
+     */
+    EGLBoolean (* SetDamageRegion) (EplDisplay *pdpy, EplSurface *psurf, const EGLint *rects, EGLint n_rects);
 } EplImplFuncs;
 
 #ifdef __cplusplus
-- 
2.51.0