move app code to new module
Mostly to keep it clean.
This commit is contained in:
parent
b377686c4b
commit
9e2324fc4a
3 changed files with 402 additions and 380 deletions
|
@ -6,7 +6,7 @@ use rgb565::Rgb565;
|
|||
|
||||
use std::ffi;
|
||||
|
||||
use tracing::{debug, error, info};
|
||||
use tracing::{debug, error};
|
||||
|
||||
/// This function is used with HW OpenGL cores to transfer the current FBO's ID.
|
||||
unsafe extern "C" fn hw_gl_get_framebuffer() -> usize {
|
||||
|
@ -110,7 +110,9 @@ pub(crate) unsafe extern "C" fn environment_callback(
|
|||
let hw_render_context_type =
|
||||
HwContextType::from_uint(hw_render.context_type).expect("Uh oh!");
|
||||
|
||||
if hw_render_context_type != HwContextType::OpenGL && hw_render_context_type != HwContextType::OpenGLCore {
|
||||
if hw_render_context_type != HwContextType::OpenGL
|
||||
&& hw_render_context_type != HwContextType::OpenGLCore
|
||||
{
|
||||
error!(
|
||||
"Core is trying to request an context type we don't support ({:?}), failing",
|
||||
hw_render_context_type
|
||||
|
|
394
crates/retrovnc/src/app.rs
Normal file
394
crates/retrovnc/src/app.rs
Normal file
|
@ -0,0 +1,394 @@
|
|||
use crate::egl;
|
||||
use crate::rfb::*;
|
||||
|
||||
use std::{path::Path, time::Duration};
|
||||
|
||||
use retro_frontend::{
|
||||
frontend::{Frontend, FrontendInterface, HwGlInitData},
|
||||
input_devices::{InputDevice, RetroPad},
|
||||
};
|
||||
|
||||
use anyhow::Result;
|
||||
|
||||
/// Called by OpenGL. We use this to dump errors.
|
||||
extern "system" fn opengl_message_callback(
|
||||
source: gl::types::GLenum,
|
||||
_type: gl::types::GLenum,
|
||||
id: gl::types::GLuint,
|
||||
_severity: gl::types::GLenum,
|
||||
_length: gl::types::GLsizei,
|
||||
message: *const gl::types::GLchar,
|
||||
_user: *mut std::ffi::c_void,
|
||||
) {
|
||||
unsafe {
|
||||
let message = std::ffi::CStr::from_ptr(message);
|
||||
if _type == gl::DEBUG_TYPE_ERROR {
|
||||
tracing::error!(
|
||||
"OpenGL error: {:?} (res {:08x}, id = {:08x}, source = {:08x})",
|
||||
message,
|
||||
_type,
|
||||
id,
|
||||
source
|
||||
);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
pub struct App {
|
||||
/// The frontend.
|
||||
frontend: Option<Box<Frontend>>,
|
||||
|
||||
/// VNC server
|
||||
rfb_server: Box<RfbServer>,
|
||||
|
||||
pad: RetroPad,
|
||||
|
||||
/// True if HW rendering is active.
|
||||
hw_render: bool,
|
||||
|
||||
// EGL state
|
||||
egl_display: egl::types::EGLDisplay,
|
||||
egl_context: egl::types::EGLContext,
|
||||
|
||||
// OpenGL object IDs
|
||||
texture_id: gl::types::GLuint,
|
||||
renderbuffer_id: gl::types::GLuint,
|
||||
fbo_id: gl::types::GLuint,
|
||||
|
||||
/// Cached readback buffer.
|
||||
readback_buffer: Vec<u32>,
|
||||
}
|
||||
|
||||
impl App {
|
||||
pub fn new(rfb_config: RfbServerConfig) -> Result<Box<Self>> {
|
||||
let mut boxed = Box::new(Self {
|
||||
frontend: None,
|
||||
rfb_server: RfbServer::new(rfb_config)?,
|
||||
pad: RetroPad::new(),
|
||||
hw_render: false,
|
||||
egl_display: std::ptr::null(),
|
||||
egl_context: std::ptr::null(),
|
||||
texture_id: 0,
|
||||
renderbuffer_id: 0,
|
||||
fbo_id: 0,
|
||||
readback_buffer: Vec::new(),
|
||||
});
|
||||
|
||||
// SAFETY: The boxed allocation will never drop since the main loop always loops forever.
|
||||
// Even if it did, the only way to touch the pointer involves the frontend library calling retro_run,
|
||||
// and the core calling one of the given callbacks. Therefore this is gnarly, but "fine".
|
||||
//
|
||||
// I'm still not really sure how to tell the borrow checker that this is alright,
|
||||
// short of Box::leak() (which I don't want to do, since ideally I'd like actual cleanup to occur).
|
||||
let obj = &mut *boxed as &mut dyn FrontendInterface;
|
||||
boxed.frontend = Some(Frontend::new(obj as *mut dyn FrontendInterface));
|
||||
|
||||
Ok(boxed)
|
||||
}
|
||||
|
||||
fn get_frontend(&mut self) -> &mut Frontend {
|
||||
self.frontend.as_mut().unwrap()
|
||||
}
|
||||
|
||||
pub fn init(&mut self) {
|
||||
// Currently retrovnc just hardcodes the assumption of a single RetroPad.
|
||||
|
||||
// SAFETY: This too won't ever be Use-After-Free'd because the only oppoturnity to
|
||||
// goes away on drop as well. That's a bit flaky reasoning wise, but is true.
|
||||
//
|
||||
// In all honesty, I'm not sure this even needs to be a *mut so I could see if
|
||||
// making it a immutable reference works.
|
||||
let pad = &mut self.pad as *mut dyn InputDevice;
|
||||
self.get_frontend().plug_input_device(0, pad);
|
||||
|
||||
// Initalize the display
|
||||
self.init_display();
|
||||
}
|
||||
|
||||
fn init_display(&mut self) {
|
||||
let av_info = self.get_frontend().get_av_info().expect("No AV info");
|
||||
|
||||
// Start VNC server.
|
||||
{
|
||||
let server = &mut self.rfb_server;
|
||||
tracing::info!("Starting VNC server");
|
||||
server.start();
|
||||
server.resize(
|
||||
av_info.geometry.base_width as u16,
|
||||
av_info.geometry.base_height as u16,
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
pub fn load_core<P: AsRef<Path>>(&mut self, path: P) -> Result<()> {
|
||||
// Unload an existing core.
|
||||
if self.get_frontend().core_loaded() {
|
||||
let _ = self.get_frontend().unload_core();
|
||||
}
|
||||
|
||||
self.get_frontend().load_core(path)?;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
pub fn load_game<P: AsRef<Path>>(&mut self, path: P) -> Result<()> {
|
||||
self.get_frontend().load_game(path)?;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
/// Initalizes a headless EGL context for OpenGL rendering.
|
||||
unsafe fn hw_gl_egl_init(&mut self) {
|
||||
self.egl_display = egl::get_device_platform_display();
|
||||
|
||||
self.egl_context = {
|
||||
const EGL_CONFIG_ATTRIBUTES: [egl::types::EGLenum; 13] = [
|
||||
egl::SURFACE_TYPE,
|
||||
egl::PBUFFER_BIT,
|
||||
egl::BLUE_SIZE,
|
||||
8,
|
||||
egl::RED_SIZE,
|
||||
8,
|
||||
egl::BLUE_SIZE,
|
||||
8,
|
||||
egl::DEPTH_SIZE,
|
||||
8,
|
||||
egl::RENDERABLE_TYPE,
|
||||
egl::OPENGL_BIT,
|
||||
egl::NONE,
|
||||
];
|
||||
let mut egl_major: egl::EGLint = 0;
|
||||
let mut egl_minor: egl::EGLint = 0;
|
||||
|
||||
let mut egl_config_count: egl::EGLint = 0;
|
||||
|
||||
let mut config: egl::types::EGLConfig = std::ptr::null();
|
||||
|
||||
egl::Initialize(
|
||||
self.egl_display,
|
||||
std::ptr::addr_of_mut!(egl_major),
|
||||
std::ptr::addr_of_mut!(egl_minor),
|
||||
);
|
||||
|
||||
egl::ChooseConfig(
|
||||
self.egl_display,
|
||||
EGL_CONFIG_ATTRIBUTES.as_ptr() as *const egl::EGLint,
|
||||
std::ptr::addr_of_mut!(config),
|
||||
1,
|
||||
std::ptr::addr_of_mut!(egl_config_count),
|
||||
);
|
||||
|
||||
egl::BindAPI(egl::OPENGL_API);
|
||||
|
||||
let context =
|
||||
egl::CreateContext(self.egl_display, config, egl::NO_CONTEXT, std::ptr::null());
|
||||
|
||||
// Make the context current on the display so OpenGL routines "just work"
|
||||
egl::MakeCurrent(self.egl_display, egl::NO_SURFACE, egl::NO_SURFACE, context);
|
||||
|
||||
context
|
||||
};
|
||||
}
|
||||
|
||||
/// Destroys EGL resources.
|
||||
unsafe fn hw_gl_egl_exit(&mut self) {
|
||||
if self.hw_render {
|
||||
// Delete FBO
|
||||
self.hw_gl_delete_fbo();
|
||||
|
||||
// Release the EGL context we created before destroying it
|
||||
egl::MakeCurrent(
|
||||
self.egl_display,
|
||||
egl::NO_SURFACE,
|
||||
egl::NO_SURFACE,
|
||||
egl::NO_CONTEXT,
|
||||
);
|
||||
egl::DestroyContext(self.egl_display, self.egl_context);
|
||||
egl::Terminate(self.egl_display);
|
||||
self.egl_display = std::ptr::null();
|
||||
self.egl_context = std::ptr::null();
|
||||
}
|
||||
}
|
||||
|
||||
/// Deletes all OpenGL FBO resources (the FBO itself, the render texture, and the renderbuffer used for depth)
|
||||
fn hw_gl_delete_fbo(&mut self) {
|
||||
unsafe {
|
||||
gl::DeleteFramebuffers(1, std::ptr::addr_of_mut!(self.fbo_id));
|
||||
self.fbo_id = 0;
|
||||
|
||||
gl::DeleteTextures(1, std::ptr::addr_of_mut!(self.texture_id));
|
||||
self.texture_id = 0;
|
||||
|
||||
gl::DeleteRenderbuffers(1, std::ptr::addr_of_mut!(self.renderbuffer_id));
|
||||
self.renderbuffer_id = 0;
|
||||
}
|
||||
}
|
||||
|
||||
fn hw_gl_create_fbo(&mut self, width: u32, height: u32) {
|
||||
unsafe {
|
||||
if self.fbo_id != 0 {
|
||||
self.hw_gl_delete_fbo();
|
||||
}
|
||||
|
||||
gl::GenFramebuffers(1, std::ptr::addr_of_mut!(self.fbo_id));
|
||||
gl::BindFramebuffer(gl::FRAMEBUFFER, self.fbo_id);
|
||||
|
||||
gl::GenTextures(1, std::ptr::addr_of_mut!(self.texture_id));
|
||||
gl::BindTexture(gl::TEXTURE_2D, self.texture_id);
|
||||
|
||||
gl::TexImage2D(
|
||||
gl::TEXTURE_2D,
|
||||
0,
|
||||
gl::RGBA8 as i32,
|
||||
width as i32,
|
||||
height as i32,
|
||||
0,
|
||||
gl::RGBA,
|
||||
gl::UNSIGNED_BYTE,
|
||||
std::ptr::null(),
|
||||
);
|
||||
|
||||
gl::GenRenderbuffers(1, std::ptr::addr_of_mut!(self.renderbuffer_id));
|
||||
gl::BindRenderbuffer(gl::RENDERBUFFER, self.renderbuffer_id);
|
||||
|
||||
gl::RenderbufferStorage(
|
||||
gl::RENDERBUFFER,
|
||||
gl::DEPTH_COMPONENT,
|
||||
width as i32,
|
||||
height as i32,
|
||||
);
|
||||
|
||||
gl::FramebufferTexture2D(
|
||||
gl::FRAMEBUFFER,
|
||||
gl::COLOR_ATTACHMENT0,
|
||||
gl::TEXTURE_2D,
|
||||
self.texture_id,
|
||||
0,
|
||||
);
|
||||
|
||||
gl::BindTexture(gl::TEXTURE_2D, 0);
|
||||
|
||||
gl::FramebufferRenderbuffer(
|
||||
gl::FRAMEBUFFER,
|
||||
gl::DEPTH_ATTACHMENT,
|
||||
gl::RENDERBUFFER,
|
||||
self.renderbuffer_id,
|
||||
);
|
||||
|
||||
gl::BindRenderbuffer(gl::RENDERBUFFER, 0);
|
||||
|
||||
gl::Viewport(0, 0, width as i32, height as i32);
|
||||
|
||||
gl::BindFramebuffer(gl::FRAMEBUFFER, 0);
|
||||
|
||||
// Notify the frontend layer about the new FBO
|
||||
let id = self.fbo_id;
|
||||
self.get_frontend().set_gl_fbo(id);
|
||||
|
||||
// Resize the readback buffer
|
||||
self.readback_buffer.resize((width * height) as usize, 0);
|
||||
}
|
||||
}
|
||||
|
||||
/// The main loop. Should probably be abstracted a bit better.
|
||||
pub fn main_loop(&mut self) -> ! {
|
||||
let frontend = self.get_frontend();
|
||||
|
||||
let av_info = frontend.get_av_info().expect("???");
|
||||
let step_ms = (1.0 / av_info.timing.fps) * 1000.;
|
||||
let step_duration = Duration::from_micros((step_ms * 1000.) as u64);
|
||||
|
||||
// Do the main loop
|
||||
loop {
|
||||
frontend.run_frame();
|
||||
std::thread::sleep(step_duration);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl FrontendInterface for App {
|
||||
fn video_resize(&mut self, width: u32, height: u32) {
|
||||
tracing::info!("Resized to {width}x{height}");
|
||||
|
||||
// Resize OpenGL resources if we need to.
|
||||
if self.hw_render {
|
||||
self.hw_gl_create_fbo(width, height);
|
||||
}
|
||||
|
||||
self.rfb_server.resize(width as u16, height as u16);
|
||||
}
|
||||
|
||||
fn video_update(&mut self, slice: &[u32], pitch: u32) {
|
||||
//let framebuffer_size = self.get_frontend().get_size();
|
||||
self.rfb_server.update_buffer(&slice, pitch, false);
|
||||
}
|
||||
|
||||
fn video_update_gl(&mut self) {
|
||||
let dimensions = self.get_frontend().get_size();
|
||||
|
||||
unsafe {
|
||||
gl::BindFramebuffer(gl::FRAMEBUFFER, self.fbo_id);
|
||||
|
||||
// I know this sucks but it works for this case.
|
||||
gl::ReadPixels(
|
||||
0,
|
||||
0,
|
||||
dimensions.0 as i32,
|
||||
dimensions.1 as i32,
|
||||
gl::RGBA,
|
||||
gl::UNSIGNED_BYTE,
|
||||
self.readback_buffer.as_mut_ptr() as *mut std::ffi::c_void,
|
||||
);
|
||||
|
||||
self.rfb_server
|
||||
.update_buffer(&self.readback_buffer[..], dimensions.0, true);
|
||||
|
||||
gl::BindFramebuffer(gl::FRAMEBUFFER, 0);
|
||||
}
|
||||
}
|
||||
|
||||
fn audio_sample(&mut self, _slice: &[i16], _size: usize) {}
|
||||
|
||||
fn input_poll(&mut self) {
|
||||
self.pad.reset();
|
||||
|
||||
// Press all buttons the VNC server marked as pressed
|
||||
let buttons = self.rfb_server.get_buttons();
|
||||
for i in 0..buttons.len() {
|
||||
if buttons[i] {
|
||||
self.pad.press_button(i as u32, None);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fn hw_gl_init(&mut self) -> HwGlInitData {
|
||||
if self.hw_render {
|
||||
panic!("Cannot initalize HW rendering more than once");
|
||||
}
|
||||
|
||||
unsafe {
|
||||
// Initalize EGL
|
||||
self.hw_gl_egl_init();
|
||||
|
||||
// load OpenGL functions (using EGL loader. We should probably check the one extension exists)
|
||||
gl::load_with(|s| {
|
||||
let str = std::ffi::CString::new(s).expect("Uhh huh.");
|
||||
std::mem::transmute(egl::GetProcAddress(str.as_ptr()))
|
||||
});
|
||||
|
||||
// set OpenGL debug message callback
|
||||
gl::Enable(gl::DEBUG_OUTPUT);
|
||||
gl::DebugMessageCallback(Some(opengl_message_callback), std::ptr::null());
|
||||
|
||||
// Create the initial FBO for the core to render to
|
||||
let dimensions = self.get_frontend().get_size();
|
||||
self.hw_gl_create_fbo(dimensions.0, dimensions.1);
|
||||
}
|
||||
|
||||
self.hw_render = true;
|
||||
|
||||
return unsafe {
|
||||
HwGlInitData {
|
||||
get_proc_address: std::mem::transmute(egl::GetProcAddress as *mut std::ffi::c_void),
|
||||
}
|
||||
};
|
||||
}
|
||||
}
|
|
@ -1,392 +1,18 @@
|
|||
use std::{net::Ipv4Addr, path::Path, time::Duration};
|
||||
|
||||
use anyhow::Result;
|
||||
use std::net::Ipv4Addr;
|
||||
|
||||
use retro_frontend::{
|
||||
frontend::{Frontend, FrontendInterface, HwGlInitData},
|
||||
input_devices::{InputDevice, RetroPad},
|
||||
};
|
||||
use tracing::Level;
|
||||
use tracing_subscriber::FmtSubscriber;
|
||||
|
||||
use clap::{arg, command, value_parser};
|
||||
|
||||
/// Called by OpenGL. We use this to dump errors.
|
||||
extern "system" fn opengl_message_callback(
|
||||
source: gl::types::GLenum,
|
||||
_type: gl::types::GLenum,
|
||||
id: gl::types::GLuint,
|
||||
_severity: gl::types::GLenum,
|
||||
_length: gl::types::GLsizei,
|
||||
message: *const gl::types::GLchar,
|
||||
_user: *mut std::ffi::c_void,
|
||||
) {
|
||||
unsafe {
|
||||
let message = std::ffi::CStr::from_ptr(message);
|
||||
if _type == gl::DEBUG_TYPE_ERROR {
|
||||
tracing::error!(
|
||||
"OpenGL error: {:?} (res {:08x}, id = {:08x}, source = {:08x})",
|
||||
message,
|
||||
_type,
|
||||
id,
|
||||
source
|
||||
);
|
||||
}
|
||||
}
|
||||
}
|
||||
mod app;
|
||||
|
||||
mod egl;
|
||||
mod rfb;
|
||||
use rfb::*;
|
||||
|
||||
struct App {
|
||||
frontend: Option<Box<Frontend>>,
|
||||
rfb_server: Box<RfbServer>,
|
||||
pad: RetroPad,
|
||||
|
||||
hw_render: bool,
|
||||
|
||||
// EGL state
|
||||
egl_display: egl::types::EGLDisplay,
|
||||
egl_context: egl::types::EGLContext,
|
||||
|
||||
// OpenGL object IDs
|
||||
texture_id: gl::types::GLuint,
|
||||
renderbuffer_id: gl::types::GLuint,
|
||||
fbo_id: gl::types::GLuint,
|
||||
|
||||
/// Cached readback buffer.
|
||||
readback_buffer: Vec<u32>,
|
||||
}
|
||||
|
||||
impl App {
|
||||
fn new(rfb_config: RfbServerConfig) -> Result<Box<Self>> {
|
||||
let mut boxed = Box::new(Self {
|
||||
frontend: None,
|
||||
rfb_server: RfbServer::new(rfb_config)?,
|
||||
pad: RetroPad::new(),
|
||||
hw_render: false,
|
||||
egl_display: std::ptr::null(),
|
||||
egl_context: std::ptr::null(),
|
||||
texture_id: 0,
|
||||
renderbuffer_id: 0,
|
||||
fbo_id: 0,
|
||||
readback_buffer: Vec::new(),
|
||||
});
|
||||
|
||||
// SAFETY: The boxed allocation will never drop since the main loop always loops forever.
|
||||
// Even if it did, the only way to touch the pointer involves the frontend library calling retro_run,
|
||||
// and the core calling one of the given callbacks. Therefore this is gnarly, but "fine".
|
||||
//
|
||||
// I'm still not really sure how to tell the borrow checker that this is alright,
|
||||
// short of Box::leak() (which I don't want to do, since ideally I'd like actual cleanup to occur).
|
||||
let obj = &mut *boxed as &mut dyn FrontendInterface;
|
||||
boxed.frontend = Some(Frontend::new(obj as *mut dyn FrontendInterface));
|
||||
|
||||
Ok(boxed)
|
||||
}
|
||||
|
||||
fn get_frontend(&mut self) -> &mut Frontend {
|
||||
self.frontend.as_mut().unwrap()
|
||||
}
|
||||
|
||||
fn init(&mut self) {
|
||||
// Currently retrovnc just hardcodes the assumption of a single RetroPad.
|
||||
|
||||
// SAFETY: This too won't ever be Use-After-Free'd because the only oppoturnity to
|
||||
// goes away on drop as well. That's a bit flaky reasoning wise, but is true.
|
||||
//
|
||||
// In all honesty, I'm not sure this even needs to be a *mut so I could see if
|
||||
// making it a immutable reference works.
|
||||
let pad = &mut self.pad as *mut dyn InputDevice;
|
||||
self.get_frontend().plug_input_device(0, pad);
|
||||
|
||||
// Initalize the display
|
||||
self.init_display();
|
||||
}
|
||||
|
||||
fn init_display(&mut self) {
|
||||
let av_info = self.get_frontend().get_av_info().expect("No AV info");
|
||||
|
||||
// Start VNC server.
|
||||
{
|
||||
let server = &mut self.rfb_server;
|
||||
tracing::info!("Starting VNC server");
|
||||
server.start();
|
||||
server.resize(
|
||||
av_info.geometry.base_width as u16,
|
||||
av_info.geometry.base_height as u16,
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
fn load_core<P: AsRef<Path>>(&mut self, path: P) -> Result<()> {
|
||||
// Unload an existing core.
|
||||
if self.get_frontend().core_loaded() {
|
||||
let _ = self.get_frontend().unload_core();
|
||||
}
|
||||
|
||||
self.get_frontend().load_core(path)?;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn load_game<P: AsRef<Path>>(&mut self, path: P) -> Result<()> {
|
||||
self.get_frontend().load_game(path)?;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
/// Initalizes a headless EGL context for OpenGL rendering.
|
||||
unsafe fn hw_gl_egl_init(&mut self) {
|
||||
self.egl_display = egl::get_device_platform_display();
|
||||
|
||||
self.egl_context = {
|
||||
const EGL_CONFIG_ATTRIBUTES: [egl::types::EGLenum; 13] = [
|
||||
egl::SURFACE_TYPE,
|
||||
egl::PBUFFER_BIT,
|
||||
egl::BLUE_SIZE,
|
||||
8,
|
||||
egl::RED_SIZE,
|
||||
8,
|
||||
egl::BLUE_SIZE,
|
||||
8,
|
||||
egl::DEPTH_SIZE,
|
||||
8,
|
||||
egl::RENDERABLE_TYPE,
|
||||
egl::OPENGL_BIT,
|
||||
egl::NONE,
|
||||
];
|
||||
let mut egl_major: egl::EGLint = 0;
|
||||
let mut egl_minor: egl::EGLint = 0;
|
||||
|
||||
let mut egl_config_count: egl::EGLint = 0;
|
||||
|
||||
let mut config: egl::types::EGLConfig = std::ptr::null();
|
||||
|
||||
egl::Initialize(
|
||||
self.egl_display,
|
||||
std::ptr::addr_of_mut!(egl_major),
|
||||
std::ptr::addr_of_mut!(egl_minor),
|
||||
);
|
||||
|
||||
egl::ChooseConfig(
|
||||
self.egl_display,
|
||||
EGL_CONFIG_ATTRIBUTES.as_ptr() as *const egl::EGLint,
|
||||
std::ptr::addr_of_mut!(config),
|
||||
1,
|
||||
std::ptr::addr_of_mut!(egl_config_count),
|
||||
);
|
||||
|
||||
egl::BindAPI(egl::OPENGL_API);
|
||||
|
||||
let context =
|
||||
egl::CreateContext(self.egl_display, config, egl::NO_CONTEXT, std::ptr::null());
|
||||
|
||||
// Make the context current on the display so OpenGL routines "just work"
|
||||
egl::MakeCurrent(self.egl_display, egl::NO_SURFACE, egl::NO_SURFACE, context);
|
||||
|
||||
context
|
||||
};
|
||||
}
|
||||
|
||||
/// Destroys EGL resources.
|
||||
unsafe fn hw_gl_egl_exit(&mut self) {
|
||||
// Release the EGL context we created before destroying it
|
||||
egl::MakeCurrent(
|
||||
self.egl_display,
|
||||
egl::NO_SURFACE,
|
||||
egl::NO_SURFACE,
|
||||
egl::NO_CONTEXT,
|
||||
);
|
||||
egl::DestroyContext(self.egl_display, self.egl_context);
|
||||
egl::Terminate(self.egl_display);
|
||||
self.egl_display = std::ptr::null();
|
||||
self.egl_context = std::ptr::null();
|
||||
}
|
||||
|
||||
/// Deletes all OpenGL FBO resources (the FBO itself, the render texture, and the renderbuffer used for depth)
|
||||
fn hw_gl_delete_fbo(&mut self) {
|
||||
unsafe {
|
||||
gl::DeleteFramebuffers(1, std::ptr::addr_of_mut!(self.fbo_id));
|
||||
self.fbo_id = 0;
|
||||
|
||||
gl::DeleteTextures(1, std::ptr::addr_of_mut!(self.texture_id));
|
||||
self.texture_id = 0;
|
||||
|
||||
gl::DeleteRenderbuffers(1, std::ptr::addr_of_mut!(self.renderbuffer_id));
|
||||
self.renderbuffer_id = 0;
|
||||
}
|
||||
}
|
||||
|
||||
fn hw_gl_create_fbo(&mut self, width: u32, height: u32) {
|
||||
unsafe {
|
||||
if self.fbo_id != 0 {
|
||||
self.hw_gl_delete_fbo();
|
||||
}
|
||||
|
||||
gl::GenFramebuffers(1, std::ptr::addr_of_mut!(self.fbo_id));
|
||||
gl::BindFramebuffer(gl::FRAMEBUFFER, self.fbo_id);
|
||||
|
||||
gl::GenTextures(1, std::ptr::addr_of_mut!(self.texture_id));
|
||||
gl::BindTexture(gl::TEXTURE_2D, self.texture_id);
|
||||
|
||||
gl::TexImage2D(
|
||||
gl::TEXTURE_2D,
|
||||
0,
|
||||
gl::RGBA8 as i32,
|
||||
width as i32,
|
||||
height as i32,
|
||||
0,
|
||||
gl::RGBA,
|
||||
gl::UNSIGNED_BYTE,
|
||||
std::ptr::null(),
|
||||
);
|
||||
|
||||
gl::GenRenderbuffers(1, std::ptr::addr_of_mut!(self.renderbuffer_id));
|
||||
gl::BindRenderbuffer(gl::RENDERBUFFER, self.renderbuffer_id);
|
||||
|
||||
gl::RenderbufferStorage(
|
||||
gl::RENDERBUFFER,
|
||||
gl::DEPTH_COMPONENT,
|
||||
width as i32,
|
||||
height as i32,
|
||||
);
|
||||
|
||||
gl::FramebufferTexture2D(
|
||||
gl::FRAMEBUFFER,
|
||||
gl::COLOR_ATTACHMENT0,
|
||||
gl::TEXTURE_2D,
|
||||
self.texture_id,
|
||||
0,
|
||||
);
|
||||
|
||||
gl::BindTexture(gl::TEXTURE_2D, 0);
|
||||
|
||||
gl::FramebufferRenderbuffer(
|
||||
gl::FRAMEBUFFER,
|
||||
gl::DEPTH_ATTACHMENT,
|
||||
gl::RENDERBUFFER,
|
||||
self.renderbuffer_id,
|
||||
);
|
||||
|
||||
gl::BindRenderbuffer(gl::RENDERBUFFER, 0);
|
||||
|
||||
gl::Viewport(0, 0, width as i32, height as i32);
|
||||
|
||||
gl::BindFramebuffer(gl::FRAMEBUFFER, 0);
|
||||
|
||||
// Notify the frontend layer about the new FBO
|
||||
let id = self.fbo_id;
|
||||
self.get_frontend().set_gl_fbo(id);
|
||||
|
||||
// Resize the readback buffer
|
||||
self.readback_buffer.resize((width * height) as usize, 0);
|
||||
}
|
||||
}
|
||||
|
||||
// Main loop
|
||||
fn main_loop(&mut self) -> ! {
|
||||
let frontend = self.get_frontend();
|
||||
|
||||
let av_info = frontend.get_av_info().expect("???");
|
||||
let step_ms = (1.0 / av_info.timing.fps) * 1000.;
|
||||
let step_duration = Duration::from_micros((step_ms * 1000.) as u64);
|
||||
|
||||
// Do the main loop
|
||||
loop {
|
||||
frontend.run_frame();
|
||||
std::thread::sleep(step_duration);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl FrontendInterface for App {
|
||||
fn video_resize(&mut self, width: u32, height: u32) {
|
||||
tracing::info!("Resized to {width}x{height}");
|
||||
|
||||
// Resize OpenGL resources if we need to.
|
||||
if self.hw_render {
|
||||
self.hw_gl_create_fbo(width, height);
|
||||
}
|
||||
|
||||
self.rfb_server.resize(width as u16, height as u16);
|
||||
}
|
||||
|
||||
fn video_update(&mut self, slice: &[u32], pitch: u32) {
|
||||
//let framebuffer_size = self.get_frontend().get_size();
|
||||
self.rfb_server.update_buffer(&slice, pitch, false);
|
||||
}
|
||||
|
||||
fn video_update_gl(&mut self) {
|
||||
let dimensions = self.get_frontend().get_size();
|
||||
|
||||
unsafe {
|
||||
gl::BindFramebuffer(gl::FRAMEBUFFER, self.fbo_id);
|
||||
|
||||
// I know this sucks but it works for this case.
|
||||
gl::ReadPixels(
|
||||
0,
|
||||
0,
|
||||
dimensions.0 as i32,
|
||||
dimensions.1 as i32,
|
||||
gl::RGBA,
|
||||
gl::UNSIGNED_BYTE,
|
||||
self.readback_buffer.as_mut_ptr() as *mut std::ffi::c_void,
|
||||
);
|
||||
|
||||
self.rfb_server
|
||||
.update_buffer(&self.readback_buffer[..], dimensions.0, true);
|
||||
|
||||
gl::BindFramebuffer(gl::FRAMEBUFFER, 0);
|
||||
}
|
||||
}
|
||||
|
||||
fn audio_sample(&mut self, _slice: &[i16], _size: usize) {}
|
||||
|
||||
fn input_poll(&mut self) {
|
||||
self.pad.reset();
|
||||
|
||||
// Press all buttons the VNC server marked as pressed
|
||||
let buttons = self.rfb_server.get_buttons();
|
||||
for i in 0..buttons.len() {
|
||||
if buttons[i] {
|
||||
self.pad.press_button(i as u32, None);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fn hw_gl_init(&mut self) -> HwGlInitData {
|
||||
if self.hw_render {
|
||||
panic!("Cannot initalize HW rendering more than once");
|
||||
}
|
||||
|
||||
unsafe {
|
||||
// Initalize EGL
|
||||
self.hw_gl_egl_init();
|
||||
|
||||
// load OpenGL functions (using EGL loader. We should probably check the one extension exists)
|
||||
gl::load_with(|s| {
|
||||
let str = std::ffi::CString::new(s).expect("Uhh huh.");
|
||||
std::mem::transmute(egl::GetProcAddress(str.as_ptr()))
|
||||
});
|
||||
|
||||
// set OpenGL debug message callback
|
||||
gl::Enable(gl::DEBUG_OUTPUT);
|
||||
gl::DebugMessageCallback(Some(opengl_message_callback), std::ptr::null());
|
||||
|
||||
// Create the initial FBO for the core to render to
|
||||
let dimensions = self.get_frontend().get_size();
|
||||
self.hw_gl_create_fbo(dimensions.0, dimensions.1);
|
||||
}
|
||||
|
||||
self.hw_render = true;
|
||||
|
||||
return unsafe {
|
||||
HwGlInitData {
|
||||
get_proc_address: std::mem::transmute(egl::GetProcAddress as *mut std::ffi::c_void),
|
||||
}
|
||||
};
|
||||
}
|
||||
}
|
||||
use app::*;
|
||||
use rfb::RfbServerConfig;
|
||||
|
||||
fn main() -> Result<()> {
|
||||
// Setup a tracing subscriber
|
||||
|
|
Loading…
Reference in a new issue