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-rw-r--r--src/api/caca/libcaca.rs187
-rw-r--r--src/api/caca/mod.rs241
-rw-r--r--src/api/mod.rs1
-rw-r--r--src/api/osmesa/mod.rs8
4 files changed, 437 insertions, 0 deletions
diff --git a/src/api/caca/libcaca.rs b/src/api/caca/libcaca.rs
new file mode 100644
index 0000000..ce2d281
--- /dev/null
+++ b/src/api/caca/libcaca.rs
@@ -0,0 +1,187 @@
+use libc;
+use std::ffi::CStr;
+use std::mem;
+use api::dlopen;
+
+pub type caca_display_t = libc::c_void;
+pub type caca_canvas_t = libc::c_void;
+pub type caca_dither_t = libc::c_void;
+
+pub struct LibCaca {
+ lib: *mut libc::c_void,
+
+ caca_create_display: unsafe extern fn(*mut caca_canvas_t) -> *mut caca_display_t,
+ caca_free_display: unsafe extern fn(*mut caca_display_t) -> libc::c_int,
+ caca_get_canvas: unsafe extern fn(*mut caca_display_t) -> *mut caca_canvas_t,
+ caca_refresh_display: unsafe extern fn(*mut caca_display_t) -> libc::c_int,
+ caca_dither_bitmap: unsafe extern fn(*mut caca_canvas_t, libc::c_int, libc::c_int, libc::c_int,
+ libc::c_int, *const caca_dither_t, *const libc::c_void)
+ -> libc::c_int,
+ caca_free_dither: unsafe extern fn(*mut caca_dither_t) -> libc::c_int,
+ caca_create_dither: unsafe extern fn(libc::c_int, libc::c_int, libc::c_int, libc::c_int,
+ libc::uint32_t, libc::uint32_t, libc::uint32_t,
+ libc::uint32_t) -> *mut caca_dither_t,
+ caca_get_canvas_width: unsafe extern fn(*mut caca_canvas_t) -> libc::c_int,
+ caca_get_canvas_height: unsafe extern fn(*mut caca_canvas_t) -> libc::c_int,
+}
+
+#[derive(Debug)]
+pub struct OpenError {
+ reason: String
+}
+
+impl LibCaca {
+ pub fn open() -> Result<LibCaca, OpenError> {
+ let lib = unsafe { dlopen::dlopen(b"libcaca.so.0\0".as_ptr() as *const _,
+ dlopen::RTLD_NOW) };
+
+ if lib.is_null() {
+ let cstr = unsafe { CStr::from_ptr(dlopen::dlerror()) };
+ let reason = String::from_utf8(cstr.to_bytes().to_vec()).unwrap();
+ return Err(OpenError { reason: reason });
+ }
+
+ let caca_create_display = match unsafe { dlopen::dlsym(lib,
+ b"caca_create_display\0".as_ptr() as *const _) }
+ {
+ ptr if ptr.is_null() => return Err(OpenError {
+ reason: "Could not load caca_create_display".to_string()
+ }),
+ ptr => ptr
+ };
+
+ let caca_free_display = match unsafe { dlopen::dlsym(lib,
+ b"caca_free_display\0".as_ptr() as *const _) }
+ {
+ ptr if ptr.is_null() => return Err(OpenError {
+ reason: "Could not load caca_free_display".to_string()
+ }),
+ ptr => ptr
+ };
+
+ let caca_get_canvas = match unsafe { dlopen::dlsym(lib,
+ b"caca_get_canvas\0".as_ptr() as *const _) }
+ {
+ ptr if ptr.is_null() => return Err(OpenError {
+ reason: "Could not load caca_get_canvas".to_string()
+ }),
+ ptr => ptr
+ };
+
+ let caca_refresh_display = match unsafe { dlopen::dlsym(lib,
+ b"caca_refresh_display\0".as_ptr() as *const _) }
+ {
+ ptr if ptr.is_null() => return Err(OpenError {
+ reason: "Could not load caca_refresh_display".to_string()
+ }),
+ ptr => ptr
+ };
+
+ let caca_dither_bitmap = match unsafe { dlopen::dlsym(lib,
+ b"caca_dither_bitmap\0".as_ptr() as *const _) }
+ {
+ ptr if ptr.is_null() => return Err(OpenError {
+ reason: "Could not load caca_dither_bitmap".to_string()
+ }),
+ ptr => ptr
+ };
+
+ let caca_free_dither = match unsafe { dlopen::dlsym(lib,
+ b"caca_free_dither\0".as_ptr() as *const _) }
+ {
+ ptr if ptr.is_null() => return Err(OpenError {
+ reason: "Could not load caca_free_dither".to_string()
+ }),
+ ptr => ptr
+ };
+
+ let caca_create_dither = match unsafe { dlopen::dlsym(lib,
+ b"caca_create_dither\0".as_ptr() as *const _) }
+ {
+ ptr if ptr.is_null() => return Err(OpenError {
+ reason: "Could not load caca_create_dither".to_string()
+ }),
+ ptr => ptr
+ };
+
+ let caca_get_canvas_width = match unsafe { dlopen::dlsym(lib,
+ b"caca_get_canvas_width\0".as_ptr() as *const _) }
+ {
+ ptr if ptr.is_null() => return Err(OpenError {
+ reason: "Could not load caca_get_canvas_width".to_string()
+ }),
+ ptr => ptr
+ };
+
+ let caca_get_canvas_height = match unsafe { dlopen::dlsym(lib,
+ b"caca_get_canvas_height\0".as_ptr() as *const _) }
+ {
+ ptr if ptr.is_null() => return Err(OpenError {
+ reason: "Could not load caca_get_canvas_height".to_string()
+ }),
+ ptr => ptr
+ };
+
+ Ok(LibCaca {
+ lib: lib,
+
+ caca_create_display: unsafe { mem::transmute(caca_create_display) },
+ caca_free_display: unsafe { mem::transmute(caca_free_display) },
+ caca_get_canvas: unsafe { mem::transmute(caca_get_canvas) },
+ caca_refresh_display: unsafe { mem::transmute(caca_refresh_display) },
+ caca_dither_bitmap: unsafe { mem::transmute(caca_dither_bitmap) },
+ caca_free_dither: unsafe { mem::transmute(caca_free_dither) },
+ caca_create_dither: unsafe { mem::transmute(caca_create_dither) },
+ caca_get_canvas_width: unsafe { mem::transmute(caca_get_canvas_width) },
+ caca_get_canvas_height: unsafe { mem::transmute(caca_get_canvas_height) },
+ })
+ }
+
+ pub unsafe fn caca_create_display(&self, cv: *mut caca_canvas_t) -> *mut caca_display_t {
+ (self.caca_create_display)(cv)
+ }
+
+ pub unsafe fn caca_free_display(&self, dp: *mut caca_display_t) -> libc::c_int {
+ (self.caca_free_display)(dp)
+ }
+
+ pub unsafe fn caca_get_canvas(&self, dp: *mut caca_display_t) -> *mut caca_canvas_t {
+ (self.caca_get_canvas)(dp)
+ }
+
+ pub unsafe fn caca_refresh_display(&self, dp: *mut caca_display_t) -> libc::c_int {
+ (self.caca_refresh_display)(dp)
+ }
+
+ pub unsafe fn caca_dither_bitmap(&self, cv: *mut caca_canvas_t, x: libc::c_int, y: libc::c_int,
+ w: libc::c_int, h: libc::c_int, d: *const caca_dither_t,
+ pixels: *const libc::c_void) -> libc::c_int
+ {
+ (self.caca_dither_bitmap)(cv, x, y, w, h, d, pixels)
+ }
+
+ pub unsafe fn caca_free_dither(&self, d: *mut caca_dither_t) -> libc::c_int {
+ (self.caca_free_dither)(d)
+ }
+
+ pub unsafe fn caca_create_dither(&self, bpp: libc::c_int, w: libc::c_int, h: libc::c_int,
+ pitch: libc::c_int, rmask: libc::uint32_t, gmask: libc::uint32_t,
+ bmask: libc::uint32_t, amask: libc::uint32_t) -> *mut caca_dither_t
+ {
+ (self.caca_create_dither)(bpp, w, h, pitch, rmask, gmask, bmask, amask)
+ }
+
+ pub unsafe fn caca_get_canvas_width(&self, cv: *mut caca_canvas_t) -> libc::c_int {
+ (self.caca_get_canvas_width)(cv)
+ }
+
+ pub unsafe fn caca_get_canvas_height(&self, cv: *mut caca_canvas_t) -> libc::c_int {
+ (self.caca_get_canvas_height)(cv)
+ }
+}
+
+impl Drop for LibCaca {
+ fn drop(&mut self) {
+ unsafe { dlopen::dlclose(self.lib); }
+ }
+}
diff --git a/src/api/caca/mod.rs b/src/api/caca/mod.rs
new file mode 100644
index 0000000..6888e49
--- /dev/null
+++ b/src/api/caca/mod.rs
@@ -0,0 +1,241 @@
+#![cfg(all(any(target_os = "linux", target_os = "freebsd"), feature="headless"))]
+
+use libc;
+use api::osmesa::OsMesaContext;
+
+use BuilderAttribs;
+use CreationError;
+use Event;
+use PixelFormat;
+use CursorState;
+use MouseCursor;
+
+use std::collections::VecDeque;
+use std::ptr;
+
+mod libcaca;
+
+pub struct Window {
+ libcaca: libcaca::LibCaca,
+ display: *mut libcaca::caca_display_t,
+ opengl: OsMesaContext,
+ dither: *mut libcaca::caca_dither_t,
+}
+
+#[derive(Clone)]
+pub struct WindowProxy;
+
+impl WindowProxy {
+ pub fn wakeup_event_loop(&self) {
+ unimplemented!()
+ }
+}
+
+pub struct MonitorID;
+
+pub fn get_available_monitors() -> VecDeque<MonitorID> {
+ VecDeque::new()
+}
+pub fn get_primary_monitor() -> MonitorID {
+ MonitorID
+}
+
+impl MonitorID {
+ pub fn get_name(&self) -> Option<String> {
+ unimplemented!();
+ }
+
+ pub fn get_native_identifier(&self) -> ::native_monitor::NativeMonitorId {
+ ::native_monitor::NativeMonitorId::Unavailable
+ }
+
+ pub fn get_dimensions(&self) -> (u32, u32) {
+ unimplemented!();
+ }
+}
+
+pub struct PollEventsIterator<'a> {
+ window: &'a Window,
+}
+
+impl<'a> Iterator for PollEventsIterator<'a> {
+ type Item = Event;
+
+ fn next(&mut self) -> Option<Event> {
+ None
+ }
+}
+
+pub struct WaitEventsIterator<'a> {
+ window: &'a Window,
+}
+
+impl<'a> Iterator for WaitEventsIterator<'a> {
+ type Item = Event;
+
+ fn next(&mut self) -> Option<Event> {
+ loop {}
+ }
+}
+
+impl Window {
+ pub fn new(builder: BuilderAttribs) -> Result<Window, CreationError> {
+ let opengl = try!(OsMesaContext::new(builder));
+ let opengl_dimensions = opengl.get_dimensions();
+
+ let libcaca = match libcaca::LibCaca::open() {
+ Err(_) => return Err(CreationError::NotSupported),
+ Ok(l) => l
+ };
+
+ let display = unsafe { libcaca.caca_create_display(ptr::null_mut()) };
+
+ if display.is_null() {
+ return Err(CreationError::OsError("caca_create_display failed".to_string()));
+ }
+
+ let dither = unsafe {
+ #[cfg(target_endian = "little")]
+ fn get_masks() -> (u32, u32, u32, u32) { (0xff, 0xff00, 0xff0000, 0xff000000) }
+ #[cfg(target_endian = "big")]
+ fn get_masks() -> (u32, u32, u32, u32) { (0xff000000, 0xff0000, 0xff00, 0xff) }
+
+ let masks = get_masks();
+ libcaca.caca_create_dither(32, opengl_dimensions.0 as libc::c_int,
+ opengl_dimensions.1 as libc::c_int,
+ opengl_dimensions.0 as libc::c_int * 4,
+ masks.0, masks.1, masks.2, masks.3)
+ };
+
+ if dither.is_null() {
+ unsafe { libcaca.caca_free_display(display) };
+ return Err(CreationError::OsError("caca_create_dither failed".to_string()));
+ }
+
+ Ok(Window {
+ libcaca: libcaca,
+ display: display,
+ opengl: opengl,
+ dither: dither,
+ })
+ }
+
+ pub fn is_closed(&self) -> bool {
+ false
+ }
+
+ pub fn set_title(&self, title: &str) {
+ }
+
+ pub fn show(&self) {
+ }
+
+ pub fn hide(&self) {
+ }
+
+ pub fn get_position(&self) -> Option<(i32, i32)> {
+ unimplemented!()
+ }
+
+ pub fn set_position(&self, x: i32, y: i32) {
+ }
+
+ pub fn get_inner_size(&self) -> Option<(u32, u32)> {
+ Some(self.opengl.get_dimensions())
+ }
+
+ pub fn get_outer_size(&self) -> Option<(u32, u32)> {
+ self.get_inner_size()
+ }
+
+ pub fn set_inner_size(&self, _x: u32, _y: u32) {
+ unimplemented!()
+ }
+
+ pub fn create_window_proxy(&self) -> WindowProxy {
+ unimplemented!()
+ }
+
+ pub fn poll_events(&self) -> PollEventsIterator {
+ PollEventsIterator {
+ window: self
+ }
+ }
+
+ pub fn wait_events(&self) -> WaitEventsIterator {
+ WaitEventsIterator {
+ window: self
+ }
+ }
+
+ pub unsafe fn make_current(&self) {
+ self.opengl.make_current()
+ }
+
+ pub fn is_current(&self) -> bool {
+ self.opengl.is_current()
+ }
+
+ pub fn get_proc_address(&self, addr: &str) -> *const () {
+ self.opengl.get_proc_address(addr) as *const _
+ }
+
+ pub fn swap_buffers(&self) {
+ unsafe {
+ let canvas = self.libcaca.caca_get_canvas(self.display);
+ let width = self.libcaca.caca_get_canvas_width(canvas);
+ let height = self.libcaca.caca_get_canvas_height(canvas);
+
+ let buffer = self.opengl.get_framebuffer().chunks(self.opengl.get_dimensions().0 as usize)
+ .flat_map(|i| i.iter().cloned()).rev().collect::<Vec<u32>>();
+
+ self.libcaca.caca_dither_bitmap(canvas, 0, 0, width as libc::c_int,
+ height as libc::c_int, self.dither,
+ buffer.as_ptr() as *const _);
+ self.libcaca.caca_refresh_display(self.display);
+ };
+ }
+
+ pub fn platform_display(&self) -> *mut libc::c_void {
+ unimplemented!()
+ }
+
+ pub fn platform_window(&self) -> *mut libc::c_void {
+ unimplemented!()
+ }
+
+ pub fn get_api(&self) -> ::Api {
+ self.opengl.get_api()
+ }
+
+ pub fn get_pixel_format(&self) -> PixelFormat {
+ unimplemented!();
+ }
+
+ pub fn set_window_resize_callback(&mut self, _: Option<fn(u32, u32)>) {
+ }
+
+ pub fn set_cursor(&self, cursor: MouseCursor) {
+ }
+
+ pub fn set_cursor_state(&self, state: CursorState) -> Result<(), String> {
+ Ok(())
+ }
+
+ pub fn hidpi_factor(&self) -> f32 {
+ 1.0
+ }
+
+ pub fn set_cursor_position(&self, x: i32, y: i32) -> Result<(), ()> {
+ Ok(())
+ }
+}
+
+impl Drop for Window {
+ fn drop(&mut self) {
+ unsafe {
+ self.libcaca.caca_free_dither(self.dither);
+ self.libcaca.caca_free_display(self.display);
+ }
+ }
+}
diff --git a/src/api/mod.rs b/src/api/mod.rs
index 34ef01d..b8cf9de 100644
--- a/src/api/mod.rs
+++ b/src/api/mod.rs
@@ -1,4 +1,5 @@
pub mod android;
+pub mod caca;
pub mod cocoa;
pub mod dlopen;
pub mod egl;
diff --git a/src/api/osmesa/mod.rs b/src/api/osmesa/mod.rs
index 585ce72..ea90583 100644
--- a/src/api/osmesa/mod.rs
+++ b/src/api/osmesa/mod.rs
@@ -35,6 +35,14 @@ impl OsMesaContext {
})
}
+ pub fn get_framebuffer(&self) -> &[u32] {
+ &self.buffer
+ }
+
+ pub fn get_dimensions(&self) -> (u32, u32) {
+ (self.width, self.height)
+ }
+
pub unsafe fn make_current(&self) {
let ret = osmesa_sys::OSMesaMakeCurrent(self.context,
self.buffer.as_ptr() as *mut libc::c_void,
generated by cgit v1.2.3 (git 2.39.1) at 2025-11-04 05:52:02 +0000