WIP camera

ferretro_base/src/retro/wrapper.rs

@@ -365,6 +365,11 @@ pub trait RetroCallbacks: Unpin + 'static {
     fn perf_stop(&mut self, counter: &mut PerfCounter) {}
     fn set_sensor_state(&mut self, port: c_uint, action: SensorAction, rate: c_uint) -> bool { false }
     fn get_sensor_input(&mut self, port: c_uint, id: c_uint) -> f32 { 0.0 }
+    fn get_camera_interface(&mut self, width: c_uint, height: c_uint, cap_raw_fb: bool, cap_gl_tex: bool) -> Option<bool> { None }
+    /// Starts the camera driver. Can only be called in retro_run().
+    fn camera_start(&mut self) -> Option<bool> { None }
+    /// Stops the camera driver. Can only be called in retro_run().
+    fn camera_stop(&mut self) -> Option<()> { None }
     /// Gets current framebuffer which is to be rendered to.
     /// Could change every frame potentially.
     fn hw_get_current_framebuffer(&mut self) -> Option<usize> { None }
@@ -547,7 +552,27 @@ impl StaticCallbacks {
                 };
                 Self::clone_into_void(data, &si)?
             }
-            // TODO (apathy) EnvCmd::GetCameraInterface => {},
+            EnvCmd::GetCameraInterface => {
+                let cc: &mut CameraCallback = Self::from_void(data)?;
+                let gl_tex = (cc.caps & 1 << (CameraBuffer::OpenGLTexture as u64)) != 0;
+                let raw_fb = (cc.caps & 1 << (CameraBuffer::RawFramebuffer as u64)) != 0;
+                let wrapper = handler.libretro_core();
+                if !(cc.frame_raw_framebuffer as *const ()).is_null() {
+                    wrapper.camera_frame_raw_framebuffer_cb.replace(cc.frame_raw_framebuffer);
+                }
+                if !(cc.frame_opengl_texture as *const ()).is_null() {
+                    wrapper.camera_frame_opengl_texture_cb.replace(cc.frame_opengl_texture);
+                }
+                if !(cc.initialized as *const ()).is_null() {
+                    wrapper.camera_lifetime_initialized_cb.replace(cc.initialized);
+                }
+                if !(cc.deinitialized as *const ()).is_null() {
+                    wrapper.camera_lifetime_deinitialized_cb.replace(cc.deinitialized);
+                }
+                cc.start = Self::camera_start;
+                cc.stop = Self::camera_stop;
+                handler.get_camera_interface(cc.width, cc.height, gl_tex, raw_fb)?
+            }
             EnvCmd::GetLogInterface => unsafe {
                 c_ext_handle_get_log_interface(data as *mut LogCallback)
             }
@@ -750,6 +775,17 @@ impl StaticCallbacks {
         }.unwrap_or_default()
     }
 
+    extern "C" fn camera_start() -> bool {
+        unsafe {
+            CB_SINGLETON.handler.as_mut().and_then(|cb| cb.camera_start())
+        }.unwrap_or_default()
+    }
+    extern "C" fn camera_stop() -> () {
+        unsafe {
+            CB_SINGLETON.handler.as_mut().and_then(|cb| cb.camera_stop())
+        }.unwrap_or_default()
+    }
+
     extern "C" fn hw_get_proc_address_fn(sym: *const c_char) -> ProcAddressFn {
         unsafe {
             std::mem::transmute(
@@ -781,6 +817,10 @@ pub struct LibretroWrapper {
     disk_get_num_images_cb: Option<GetNumImagesFn>,
     disk_replace_image_index_cb: Option<ReplaceImageIndexFn>,
     disk_add_image_index_cb: Option<AddImageIndexFn>,
+    camera_frame_raw_framebuffer_cb: Option<CameraFrameRawFramebufferFn>,
+    camera_frame_opengl_texture_cb: Option<CameraFrameOpenglTextureFn>,
+    camera_lifetime_initialized_cb: Option<CameraLifetimeStatusFn>,
+    camera_lifetime_deinitialized_cb: Option<CameraLifetimeStatusFn>,
     hw_context_reset_cb: Option<HwContextResetFn>,
     hw_context_destroy_cb: Option<HwContextResetFn>, // same signature, libretro-sys deduplicated...
     get_proc_address_cb: Option<GetProcAddressFn>,
@@ -801,6 +841,10 @@ impl From<LibretroApi> for LibretroWrapper {
             disk_get_num_images_cb: None,
             disk_replace_image_index_cb: None,
             disk_add_image_index_cb: None,
+            camera_frame_raw_framebuffer_cb: None,
+            camera_frame_opengl_texture_cb: None,
+            camera_lifetime_initialized_cb: None,
+            camera_lifetime_deinitialized_cb: None,
             hw_context_reset_cb: None,
             hw_context_destroy_cb: None,
             get_proc_address_cb: None,
@@ -820,16 +864,19 @@ impl LibretroWrapper {
         self.keyboard_event_cb
             .map(|f| unsafe { f(down, keycode, character, key_modifiers) })
     }
+
     pub fn frame_time(&self, time: Duration) -> Option<()> {
         self.frame_time_cb
             .map(|f| unsafe { f(time.as_micros() as Usec) })
     }
+
     pub fn audio_ready(&self) -> Option<()> {
         self.audio_ready_cb.map(|f| unsafe { f() })
     }
     pub fn audio_set_state(&self, enabled: bool) -> Option<()> {
         self.audio_set_state_cb.map(|f| unsafe { f(enabled) })
     }
+
     pub fn disk_get_eject_state(&self) -> Option<bool> {
         self.disk_get_eject_state_cb.map(|f| unsafe { f() })
     }
@@ -857,6 +904,20 @@ impl LibretroWrapper {
     pub fn disk_add_image_index(&self) -> Option<bool> {
         self.disk_add_image_index_cb.map(|f| unsafe { f() })
     }
+
+    pub fn camera_frame_raw_framebuffer(&self, buffer: *const u32, width: c_uint, height: c_uint, pitch: usize) -> Option<()> {
+        self.camera_frame_raw_framebuffer_cb.map(|f| unsafe { f(buffer, width, height, pitch) })
+    }
+    pub fn camera_frame_opengl_texture(&self, texture_id: c_uint, texture_target: c_uint, affine: *const f32) -> Option<()> {
+        self.camera_frame_opengl_texture_cb.map(|f| unsafe { f(texture_id, texture_target, affine) })
+    }
+    pub fn camera_lifetime_initialized(&self) -> Option<()> {
+        self.camera_lifetime_initialized_cb.map(|f| unsafe { f() })
+    }
+    pub fn camera_lifetime_deinitialized(&self) -> Option<()> {
+        self.camera_lifetime_deinitialized_cb.map(|f| unsafe { f() })
+    }
+
     pub fn hw_context_reset(&self) -> Option<()> {
         self.hw_context_reset_cb.map(|f| unsafe { f() })
     }

ferretro_components/examples/multifunction_emulator.rs

@@ -14,6 +14,7 @@ use ferretro_components::provided::{
     stdlib::{PathBufComponent, StderrLogComponent, SleepFramerateLimitComponent},
 };
 use ferretro_components::base::ControlFlow;
+use ferretro_components::provided::stdlib::{StderrCallTraceComponent, StderrSysInfoLogComponent};
 
 #[derive(StructOpt)]
 struct Opt {
@@ -42,8 +43,10 @@ pub fn main() {
     let mut sdl_context = sdl2::init().unwrap();
 
     emu.register_component(StderrLogComponent { prefix: "{log} ".to_string() });
+    emu.register_component(StderrCallTraceComponent { prefix: "{trace} ".to_string() });
+    emu.register_component(StderrSysInfoLogComponent { prefix: "{sysinfo} ".to_string() });
 
-    let sdl2_ogl = SimpleSdl2OpenglComponent::new(&mut sdl_context, emu.libretro_core()).unwrap();
+    let sdl2_ogl = SimpleSdl2CanvasComponent::new(&mut sdl_context, emu.libretro_core()).unwrap();
     emu.register_component(sdl2_ogl);
 
     let sdl2_audio = SimpleSdl2AudioComponent::new(&mut sdl_context, emu.libretro_core());

ferretro_components/src/provided/sdl2/canvas.rs

@@ -63,8 +63,11 @@ impl RetroCallbacks for SimpleSdl2CanvasComponent {
     }
 
     fn get_variable(&mut self, key: &str) -> Option<String> {
+        eprintln!("get_variable({})", key);
         match key {
             "parallel-n64-gfxplugin" => Some("angrylion".to_string()),
+            "mupen64plus-rdp-plugin" => Some("angrylion".to_string()),
+            "mupen64plus-rsp-plugin" => Some("cxd4".to_string()),
             _ => None,
         }
     }

ferretro_components/src/provided/stdlib.rs

@@ -4,7 +4,7 @@ use std::time::{Duration, Instant};
 
 use crate::base::ControlFlow;
 use crate::prelude::*;
-use ferretro_base::retro::ffi::{Message, Language};
+use ferretro_base::retro::ffi::{Message, Language, LogLevel, RumbleEffect, Time, PerfTick, PerfCounter, SensorAction};
 
 #[derive(Default)]
 pub struct PathBufComponent {
@@ -197,6 +197,18 @@ impl RetroCallbacks for StderrCallTraceComponent {
         eprintln!("{}get_language()", self.prefix);
         None
     }
+    fn get_camera_interface(&mut self, width: c_uint, height: c_uint, cap_raw_fb: bool, cap_gl_tex: bool) -> Option<bool> {
+        eprintln!("{}get_camera_interface(width={}, height={}, fb={}, gl={})", self.prefix, width, height, cap_raw_fb, cap_gl_tex);
+        None
+    }
+    fn camera_start(&mut self) -> Option<bool> {
+        eprintln!("{}camera_start()", self.prefix);
+        None
+    }
+    fn camera_stop(&mut self) -> Option<()> {
+        eprintln!("{}camera_stop()", self.prefix);
+        None
+    }
     fn hw_get_current_framebuffer(&mut self) -> Option<usize> {
         eprintln!("{}hw_get_current_framebuffer()", self.prefix);
         None