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[Fix] (DirectGLES): queue app buffer updates and flush them through a staged-copy upload ring instead of stalling in glBufferSubData

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swung0x48
2026-08-27 22:19:44 -04:00
parent 200c21336f
commit a28da07641
5 changed files with 146 additions and 7 deletions
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MobileGL/Config.h
+6
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@@ -170,6 +170,12 @@ namespace MobileGL::MG_Config {
// persistent-mapped unpack-PBO ring (negative control / driver-bug escape
// hatch).
Bool DisableUnpackRing = false;
// MOBILEGL_DISABLE_UPLOAD_RING: force DirectGLES app buffer updates
// (glBufferSubData / map flushes) back to the immediate driver upload instead
// of queueing them for the staged-copy flush through the persistent-mapped
// upload ring (negative control / driver-bug escape hatch; the immediate
// upload stalls on drivers that resolve the WAR hazard on the CPU, e.g. Mali).
Bool DisableUploadRing = false;
// MOBILEGL_ESPRYT_FORCE_DS_READBACK_EMULATION: make DirectGLES skip the native ES
// depth/stencil reads and always go through the shader-sampling emulation. Core GL
// ES has no depth or stencil readback, but some drivers accept it anyway (Mesa does,