use idle (#1039)

build.rs

@@ -206,6 +206,7 @@ fn main() {
         .allowlist_function("rdp_state_size")
         .allowlist_function("rdp_save_state")
         .allowlist_function("rdp_load_state")
+        .allowlist_function("rdp_idle")
         .allowlist_function("rdp_set_fps")
         .allowlist_function("get_joystick_event")
         .parse_callbacks(Box::new(bindgen::CargoCallbacks::new()))

parallel-rdp/interface.cpp

@@ -298,6 +298,12 @@ JoystickEvent get_joystick_event() {
   return joystick_event;
 }
 
+void rdp_idle() {
+  processor->idle();
+  sync_signal = 0;
+  rdram_dirty.assign(gfx_info.RDRAM_SIZE >> 3, false);
+}
+
 static void rdp_new_processor() {
   RDP::CommandProcessorFlags flags =
       RDP::COMMAND_PROCESSOR_FLAG_HOST_VISIBLE_HIDDEN_RDRAM_BIT |
@@ -327,6 +333,9 @@ static void rdp_new_processor() {
   if (!g_hidden_rdram) {
     printf("Failed to get hidden_rdram\n");
   }
+
+  sync_signal = 0;
+  rdram_dirty.assign(gfx_info.RDRAM_SIZE >> 3, false);
 }
 
 static ImageHandle create_message_image(Vulkan::Device &device, int width,
@@ -429,9 +438,6 @@ void rdp_init(void *_window, GFX_INFO _gfx_info, const void *font,
   achievement_progress_indicator_image = Vulkan::ImageHandle();
   fps_image = Vulkan::ImageHandle();
   display_fps = false;
-
-  sync_signal = 0;
-  rdram_dirty.assign(gfx_info.RDRAM_SIZE >> 3, false);
 }
 
 void rdp_close() {

parallel-rdp/interface.hpp

@@ -58,6 +58,7 @@ void rdp_update_screen();
 void rdp_render_frame();
 CALL_BACK rdp_check_callback();
 uint64_t rdp_process_commands();
+void rdp_idle();
 void rdp_onscreen_message(const char *message, MESSAGE_LENGTH milliseconds);
 void rdp_check_framebuffers(uint32_t address, uint32_t length);
 size_t rdp_state_size();

src/savestates.rs

@@ -113,7 +113,7 @@ pub fn process_savestates(device: &mut device::Device) {
 
 pub fn create_savestate(device: &mut device::Device, rewind: bool, rewind_frame: Option<i32>) {
     if !rewind {
-        ui::video::check_framebuffers(0, device.rdram.size);
+        ui::video::idle();
     }
 
     let mut rdp_state: Vec<u8> = vec![0; ui::video::state_size()];
@@ -264,7 +264,7 @@ pub fn load_savestate(device: &mut device::Device, rewind: bool, rewind_frame: O
         && device.rdram.size == state.device.rdram.size
     {
         if device.netplay.is_none() {
-            ui::video::check_framebuffers(0, device.rdram.size);
+            ui::video::idle();
         }
 
         device.savestate.last_rewind_saved = state.device.vi.elapsed_time;

src/ui/video.rs

@@ -165,6 +165,10 @@ pub fn save_state(rdp_state: *mut u8) {
     unsafe { rdp_save_state(rdp_state) }
 }
 
+pub fn idle() {
+    unsafe { rdp_idle() }
+}
+
 pub fn load_state(device: &mut device::Device, rdp_state: *const u8) {
     let gfx_info = build_gfx_info(device);
     unsafe {