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Update windows createpbuffer implementation to latest from duckstation

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This commit is contained in:
offtkp 2024-08-10 20:05:25 +03:00
parent 4dd3cd89bf
commit 0793032ece
1 changed files with 29 additions and 2 deletions
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31
third_party/duckstation/gl/context_wgl.cpp vendored
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@ -149,8 +149,8 @@ std::unique_ptr<Context> ContextWGL::CreateSharedContext(const WindowInfo& wi)
}
else
{
Log_ErrorPrint("PBuffer not implemented");
return nullptr;
if (!context->CreatePBuffer())
return nullptr;
}
if (m_version.profile == Profile::NoProfile)
@ -305,6 +305,32 @@ bool ContextWGL::CreatePBuffer()
static constexpr const int pb_attribs[] = {0, 0};
HGLRC temp_rc = nullptr;
ScopedGuard temp_rc_guard([&temp_rc, hdc]() {
if (temp_rc)
{
wglMakeCurrent(hdc, nullptr);
wglDeleteContext(temp_rc);
}
});
if (!GLAD_WGL_ARB_pbuffer)
{
// we're probably running completely surfaceless... need a temporary context.
temp_rc = wglCreateContext(hdc);
if (!temp_rc || !wglMakeCurrent(hdc, temp_rc))
{
Log_ErrorPrint("Failed to create temporary context to load WGL for pbuffer.");
return false;
}
if (!ReloadWGL(hdc) || !GLAD_WGL_ARB_pbuffer)
{
Log_ErrorPrint("Missing WGL_ARB_pbuffer");
return false;
}
}
AssertMsg(m_pixel_format.has_value(), "Has pixel format for pbuffer");
HPBUFFERARB pbuffer = wglCreatePbufferARB(hdc, m_pixel_format.value(), 1, 1, pb_attribs);
if (!pbuffer)
@ -326,6 +352,7 @@ bool ContextWGL::CreatePBuffer()
m_dummy_dc = hdc;
m_pbuffer = pbuffer;
temp_rc_guard.Run();
pbuffer_guard.Cancel();
hdc_guard.Cancel();
hwnd_guard.Cancel();