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Metal: Hook up the backend on Mac, with the null GPU for now

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Selectable with --graphics=metal, the backend choice in settings and the
Mac menu bar. SDL creates a Metal view for it, and headless renders
offscreen. Games run on the null GPU until there's a GPU/Metal.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
This commit is contained in:
Henrik RydgårdandClaude Opus 5.5 committed 2026-10-19 12:02:22 +02:00
1 parent 16ed2ad55a
commit 8d7ce57fa8
10 files changed
+59 -5
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UI/GameSettingsScreen.cpp
+3 -1
View File
@@ -279,7 +279,7 @@ void GameSettingsScreen::CreateGraphicsSettings(UI::ViewGroup *graphicsSettings)
Draw::DrawContext *draw = screenManager()->getDrawContext();
#if !PPSSPP_PLATFORM(UWP)
static const char *renderingBackend[] = { "OpenGL", "Direct3D 9", "Direct3D 11", "Vulkan" };
static const char *renderingBackend[] = { "OpenGL", "Direct3D 9", "Direct3D 11", "Vulkan", "Metal" };
PopupMultiChoice *renderingBackendChoice = graphicsSettings->Add(new PopupMultiChoice(&g_Config.iGPUBackend, gr->T("Backend"), renderingBackend, (int)GPUBackend::OPENGL, ARRAY_SIZE(renderingBackend), I18NCat::GRAPHICS, screenManager()));
renderingBackendChoice->SetPreOpenCallback([this](UI::PopupMultiChoice *choice) {
// Don't filter until the last possible moment, since it involves trying to initialize Vulkan, if we were
@@ -293,6 +293,8 @@ void GameSettingsScreen::CreateGraphicsSettings(UI::ViewGroup *graphicsSettings)
choice->HideChoice((int)GPUBackend::DIRECT3D11);
if (!g_Config.IsBackendEnabled(GPUBackend::VULKAN))
choice->HideChoice((int)GPUBackend::VULKAN);
if (!g_Config.IsBackendEnabled(GPUBackend::METAL))
choice->HideChoice((int)GPUBackend::METAL);
});
if (!IsFirstInstance()) {