swung0x48/MobileGL
1
0
Fork 0
mirror of https://github.com/MobileGL-Dev/MobileGL synced 2026-09-08 04:08:32 +09:00
Code Issues Packages Projects Releases Wiki Activity

[Fix] (MG_Backend/DirectGLES): a declined map renewal left the respecify pointing at immutable storage

Browse Source
This commit is contained in:
swung0x48
2026-08-12 09:17:54 -04:00
parent bb122ebd4f
commit 74ce58a6c7
1 changed files with 14 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
MobileGL/MG_Backend/DirectGLES/Managers.cpp
+14 -2
View File
@@ -610,10 +610,22 @@ namespace MobileGL::MG_Backend::DirectGLES {
// where a respecification would put them.
if (bufferObject.IsBackendPersistentMapped()) return;
// Renewal declined (a zero-sized store, or the map could not be
// retaken): the buffer is back on its CPU shadow and needs the
// ordinary respecification below.
// retaken): the buffer is back on its CPU shadow and needs an ordinary
// store again. Not this id's, though - it carries IMMUTABLE storage
// (glBufferStorageEXT), which glBufferData below would refuse. Drop it
// and let the lazy EnsureBufferResource path mint a mutable one with a
// full upload; nothing points into the old mapping any more, because
// the frontend has just given the adoption back.
resource->persistentMapped = false;
resource->persistentPtr = nullptr;
if (resource->id != 0 && CanTouchGLNow() &&
resource->contextGeneration == g_bufferContextGeneration) {
ScrubBufferBindingShadowsForId(resource->id);
g_GLESFuncs.glDeleteBuffers(1, &resource->id);
}
resource->id = 0;
resource->storageInitialized = false;
resource->storageSize = 0;
}
if (!CanTouchGLNow() || resource->id == 0 ||
resource->contextGeneration != g_bufferContextGeneration) {