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gitadora: (arena model) booting fullscreen with one monitor (#696)

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## Link to GitHub Issue or related Pull Request, if one exists
#477 

## Description of change
By default the game needs 4 monitors.

With the new option to disable subscreens, you can now boot fullscreen
with a single 4K monitor, with subscreen overlay enabled. Side monitors
are not shown in the overlay; only the touch screen is emulated.

## Future work

- [ ] custom resolution (-forceres) doesn't work properly (hooking
ResetEx does allow the game to boot but will render incorrectly;
probably needs hex edits)
- [x] enable this automatically if the user has fewer than 4 monitors
- [ ] ability to boot with a 4k main screen + small subscreen (with no
side screens which do nothing gameplay wise), but this whole display
emulation is a nightmare to work with & test thoroughly so it'll have to
be in the future.


## Testing
Checklist:

- [x] fs on 1 monitor with option set
- [x] fs on 2 monitor with option set
- [x] windowed - default (4 windows, no overlay)
- [x] windowed - with option set (1 window, overlay)
- [x] fs with 4 monitors?
- [x] check popn hc for regression
This commit is contained in:
bicarus
2026-05-18 15:28:12 -07:00
committed by GitHub
parent e9dcc5717e
commit f69e40fa26
13 changed files with 425 additions and 69 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/spice2x/hooks/graphics/backends/d3d9/d3d9_backend.cpp
+44 -24
View File
@@ -465,15 +465,21 @@ HRESULT STDMETHODCALLTYPE WrappedIDirect3D9::RegisterSoftwareDevice(void *pIniti
UINT STDMETHODCALLTYPE WrappedIDirect3D9::GetAdapterCount() {
UINT result = pReal->GetAdapterCount();
if (!FAKE_SUBSCREEN_ADAPTER && games::popn::is_pikapika_model() && result == 1) {
FAKE_SUBSCREEN_ADAPTER = true;
log_info(
"graphics::d3d9",
"GetAdapterCount returned 1, popn needs 2 adapters - enabliing fake submonitor mode");
}
if (!FAKE_SUBSCREEN_ADAPTER) {
if (games::popn::is_pikapika_model() && result == 1) {
FAKE_SUBSCREEN_ADAPTER = true;
log_info(
"graphics::d3d9",
"GetAdapterCount returned {}, popn needs 2 adapters - enabling fake submonitor mode", result);
return 2;
if (FAKE_SUBSCREEN_ADAPTER) {
return 2;
} else if (games::gitadora::is_arena_model() && !GRAPHICS_WINDOWED && result < 4) {
FAKE_SUBSCREEN_ADAPTER = true;
log_info(
"graphics::d3d9",
"GetAdapterCount returned {}, gfdm needs 4 adapters - enabling fake submonitor mode", result);
return 4;
}
}
return result;
@@ -485,12 +491,14 @@ HRESULT STDMETHODCALLTYPE WrappedIDirect3D9::GetAdapterIdentifier(
D3DADAPTER_IDENTIFIER9 *pIdentifier)
{
if (FAKE_SUBSCREEN_ADAPTER && Adapter == 1 && pIdentifier) {
if (FAKE_SUBSCREEN_ADAPTER && Adapter > 0 && pIdentifier) {
*pIdentifier = {};
strcpy(pIdentifier->DeviceName, "\\\\.\\DISPLAY_SPICE_FAKE");
const std::string adapter_name = fmt::format("\\\\.\\DISPLAY_SPICE_FAKE_{}", Adapter);
strcpy(pIdentifier->DeviceName, adapter_name.c_str());
log_misc(
"graphics::d3d9",
"GetAdapterIdentifier called for fake subscreen adapter 1: {}",
"GetAdapterIdentifier called for fake subscreen adapter {}: {}",
Adapter,
pIdentifier->DeviceName);
return S_OK;
}
@@ -499,8 +507,8 @@ HRESULT STDMETHODCALLTYPE WrappedIDirect3D9::GetAdapterIdentifier(
}
UINT STDMETHODCALLTYPE WrappedIDirect3D9::GetAdapterModeCount(UINT Adapter, D3DFORMAT Format) {
if (FAKE_SUBSCREEN_ADAPTER && Adapter == 1) {
log_misc("graphics::d3d9", "GetAdapterModeCount called for fake subscreen adapter");
if (FAKE_SUBSCREEN_ADAPTER && Adapter > 0) {
log_misc("graphics::d3d9", "GetAdapterModeCount called for fake subscreen adapter {}", Adapter);
return 1;
}
@@ -513,8 +521,8 @@ HRESULT STDMETHODCALLTYPE WrappedIDirect3D9::EnumAdapterModes(
UINT Mode,
D3DDISPLAYMODE *pMode)
{
if (FAKE_SUBSCREEN_ADAPTER && Adapter == 1) {
log_misc("graphics::d3d9", "EnumAdapterModes called for fake subscreen adapter");
if (FAKE_SUBSCREEN_ADAPTER && Adapter > 0) {
log_misc("graphics::d3d9", "EnumAdapterModes called for fake subscreen adapter {}", Adapter);
if (Mode == 0 && pMode) {
pMode->Width = 1280;
pMode->Height = 800;
@@ -622,8 +630,8 @@ HRESULT STDMETHODCALLTYPE WrappedIDirect3D9::CheckDeviceFormat(
D3DRESOURCETYPE RType,
D3DFORMAT CheckFormat)
{
if (FAKE_SUBSCREEN_ADAPTER && Adapter == 1) {
log_misc("graphics::d3d9", "CheckDeviceFormat called for fake subscreen adapter");
if (FAKE_SUBSCREEN_ADAPTER && Adapter > 0) {
log_misc("graphics::d3d9", "CheckDeviceFormat called for fake subscreen adapter {}", Adapter);
return D3D_OK;
}
@@ -1143,10 +1151,15 @@ HRESULT STDMETHODCALLTYPE WrappedIDirect3D9::CreateDeviceEx(
*ppReturnedDeviceInterface = new WrappedIDirect3DDevice9(hFocusWindow, *ppReturnedDeviceInterface);
// initialize sub screen if IIDX/SDVX requested a multi-head context
if (avs::game::is_model({"LDJ", "KFC", "M39"}) &&
// initialize sub screen if the game requested a multi-head context
if (avs::game::is_model({"LDJ", "KFC", "M39", "M32"}) &&
(orig_behavior_flags & D3DCREATE_ADAPTERGROUP_DEVICE)) {
graphics_d3d9_ldj_init_sub_screen(*ppReturnedDeviceInterface, &pPresentationParameters[1]);
UINT i = 1;
if (games::gitadora::is_arena_model()) {
i = 2;
}
graphics_d3d9_ldj_init_sub_screen(*ppReturnedDeviceInterface, &pPresentationParameters[i]);
}
}
@@ -1196,7 +1209,13 @@ static void graphics_d3d9_ldj_init_sub_screen(IDirect3DDevice9Ex *device, D3DPRE
log_info("graphics::d3d9", "created additional swap chain for windowed mode");
}
} else {
hr = device->GetSwapChain(1, &SUB_SWAP_CHAIN);
int swapchain = 1;
if (games::gitadora::is_arena_model()) {
swapchain = 2;
}
hr = device->GetSwapChain(swapchain, &SUB_SWAP_CHAIN);
if (FAILED(hr)) {
log_warning("graphics::d3d9", "failed to acquire fullscreen sub swap chain, hr={}", FMT_HRESULT(hr));
} else {
@@ -1233,7 +1252,7 @@ static void graphics_d3d9_ldj_on_present(IDirect3DDevice9 *wrapped_device) {
// iidx/sdvx
int swapchain = 1;
if (games::gitadora::is_arena_model()) {
swapchain = 3;
swapchain = 2;
}
if (!ATTEMPTED_SUB_SWAP_CHAIN_ACQUIRE && SUB_SWAP_CHAIN == nullptr) {
@@ -1452,8 +1471,9 @@ void graphics_d3d9_on_present(
// for IIDX TDJ / SDVX UFC, handle subscreen
const bool is_vm = games::sdvx::is_valkyrie_model();
const bool is_tdj = avs::game::is_model("LDJ") && games::iidx::TDJ_MODE;
const bool is_gfdm_arena =
games::gitadora::is_arena_model() && games::gitadora::ARENA_SINGLE_WINDOW;
const bool is_gfdm_arena = games::gitadora::is_arena_model() &&
(GRAPHICS_FORCE_SINGLE_ADAPTER || GRAPHICS_PREVENT_SECONDARY_WINDOW);
const bool is_pika = games::popn::is_pikapika_model();
if (is_vm || is_tdj || is_gfdm_arena || is_pika) {
graphics_d3d9_ldj_on_present(wrapped_device);