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[Feat] (WGL): add Windows host layer - drop-in opengl32.dll with WGL over EGLImpl, Win32 window backend plumbing for both backends, ANGLE loader path, and leak-at-exit process teardown

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swung0x48
2026-07-26 06:46:29 -04:00
parent 199164c2e0
commit c4254c4bbd
14 changed files with 1067 additions and 22 deletions
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MobileGL/MG_Backend/DirectGLES/BackendObject_DirectGLES.cpp
+3 -2
View File
@@ -701,9 +701,10 @@ namespace MobileGL::MG_Backend::DirectGLES {
if ((handle.Backend != WindowBackend::Android &&
handle.Backend != WindowBackend::X11 &&
handle.Backend != WindowBackend::MetalLayer) ||
handle.Backend != WindowBackend::MetalLayer &&
handle.Backend != WindowBackend::Win32) ||
!handle.Handle) {
MGLOG_E("DirectGLES backend only supports Android, X11, and CAMetalLayer native windows");
MGLOG_E("DirectGLES backend only supports Android, X11, CAMetalLayer, and Win32 native windows");
return false;
}
MobileGL/MG_Backend/DirectGLES/DirectGLES.cpp
+16 -2
View File
@@ -4307,9 +4307,23 @@ namespace MobileGL::MG_Backend::DirectGLES {
if (!ChooseConfigForSurface(surfaceBit, g_Config, window)) return false;
const EGLint contextAttribs[] = {EGL_CONTEXT_CLIENT_VERSION, 3, EGL_NONE};
// Negotiate the highest ES 3.x context. Version-strict EGL implementations
// (ANGLE) return exactly the requested minor, and a bare CLIENT_VERSION 3
// request yields a 3.0 context that lacks the 3.1/3.2 texture targets the
// capability probes exercise; mobile drivers ignore the minor and hand out
// their maximum either way.
for (const EGLint minorVersion : {2, 1, 0}) {
const EGLint contextAttribs[] = {EGL_CONTEXT_MAJOR_VERSION, 3,
EGL_CONTEXT_MINOR_VERSION, minorVersion,
EGL_NONE};
g_Context = g_EGLFuncs.eglCreateContext(g_Display, g_Config, EGL_NO_CONTEXT, contextAttribs);
if (g_Context != EGL_NO_CONTEXT) {
return true;
}
}
g_Context = g_EGLFuncs.eglCreateContext(g_Display, g_Config, EGL_NO_CONTEXT, contextAttribs);
const EGLint legacyContextAttribs[] = {EGL_CONTEXT_CLIENT_VERSION, 3, EGL_NONE};
g_Context = g_EGLFuncs.eglCreateContext(g_Display, g_Config, EGL_NO_CONTEXT, legacyContextAttribs);
return g_Context != EGL_NO_CONTEXT;
}