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-rw-r--r--src/api/cocoa/mod.rs140
1 files changed, 102 insertions, 38 deletions
diff --git a/src/api/cocoa/mod.rs b/src/api/cocoa/mod.rs
index a6bdfa3..28d5ecc 100644
--- a/src/api/cocoa/mod.rs
+++ b/src/api/cocoa/mod.rs
@@ -156,6 +156,7 @@ pub struct Window {
view: IdRef,
window: IdRef,
context: IdRef,
+ pixel_format: PixelFormat,
delegate: WindowDelegate,
}
@@ -326,21 +327,23 @@ impl Window {
Some(app) => app,
None => { return Err(OsError(format!("Couldn't create NSApplication"))); },
};
- let window = match Window::create_window(builder.dimensions.unwrap_or((800, 600)),
- &*builder.title,
- &builder.monitor)
+
+ let window = match Window::create_window(&builder)
{
Some(window) => window,
None => { return Err(OsError(format!("Couldn't create NSWindow"))); },
};
+
let view = match Window::create_view(*window) {
Some(view) => view,
None => { return Err(OsError(format!("Couldn't create NSView"))); },
};
- let context = match Window::create_context(*view, &builder) {
- Some(context) => context,
- None => { return Err(OsError(format!("Couldn't create OpenGL context"))); },
+ // TODO: perhaps we should return error from create_context so we can
+ // determine the cause of failure and possibly recover?
+ let (context, pf) = match Window::create_context(*view, &builder) {
+ (Some(context), Some(pf)) => (context, pf),
+ (_, _) => { return Err(OsError(format!("Couldn't create OpenGL context"))); },
};
unsafe {
@@ -365,6 +368,7 @@ impl Window {
view: view,
window: window,
context: context,
+ pixel_format: pf,
delegate: WindowDelegate::new(ds),
};
@@ -384,9 +388,9 @@ impl Window {
}
}
- fn create_window(dimensions: (u32, u32), title: &str, monitor: &Option<MonitorID>) -> Option<IdRef> {
+ fn create_window(builder: &BuilderAttribs) -> Option<IdRef> {
unsafe {
- let screen = match *monitor {
+ let screen = match builder.monitor {
Some(ref monitor_id) => {
let native_id = match monitor_id.get_native_identifier() {
NativeMonitorId::Numeric(num) => num,
@@ -418,7 +422,7 @@ impl Window {
let frame = match screen {
Some(screen) => NSScreen::frame(screen),
None => {
- let (width, height) = dimensions;
+ let (width, height) = builder.dimensions.unwrap_or((800, 600));
NSRect::new(NSPoint::new(0., 0.), NSSize::new(width as f64, height as f64))
}
};
@@ -439,7 +443,7 @@ impl Window {
NO,
));
window.non_nil().map(|window| {
- let title = IdRef::new(NSString::alloc(nil).init_str(title));
+ let title = IdRef::new(NSString::alloc(nil).init_str(&builder.title));
window.setTitle_(*title);
window.setAcceptsMouseMovedEvents_(YES);
if screen.is_some() {
@@ -464,7 +468,7 @@ impl Window {
}
}
- fn create_context(view: id, builder: &BuilderAttribs) -> Option<IdRef> {
+ fn create_context(view: id, builder: &BuilderAttribs) -> (Option<IdRef>, Option<PixelFormat>) {
let profile = match builder.gl_version {
GlRequest::Latest => NSOpenGLProfileVersion4_1Core as u32,
GlRequest::Specific(Api::OpenGl, (1 ... 2, _)) => NSOpenGLProfileVersionLegacy as u32,
@@ -477,39 +481,99 @@ impl Window {
GlRequest::GlThenGles { opengl_version: (3, 1 ... 2), .. } => NSOpenGLProfileVersion3_2Core as u32,
GlRequest::GlThenGles { .. } => NSOpenGLProfileVersion4_1Core as u32,
};
- unsafe {
- let mut attributes = vec![
- NSOpenGLPFADoubleBuffer as u32,
- NSOpenGLPFAClosestPolicy as u32,
- NSOpenGLPFAColorSize as u32, 24,
- NSOpenGLPFAAlphaSize as u32, 8,
- NSOpenGLPFADepthSize as u32, 24,
- NSOpenGLPFAStencilSize as u32, 8,
- NSOpenGLPFAOpenGLProfile as u32, profile,
- ];
-
- if let Some(samples) = builder.multisampling {
- attributes = attributes + &[
- NSOpenGLPFAMultisample as u32,
- NSOpenGLPFASampleBuffers as u32, 1,
- NSOpenGLPFASamples as u32, samples as u32,
- ];
- }
- attributes.push(0);
+ // NOTE: OS X no longer has the concept of setting individual
+ // color component's bit size. Instead we can only specify the
+ // full color size and hope for the best. Another hiccup is that
+ // `NSOpenGLPFAColorSize` also includes `NSOpenGLPFAAlphaSize`,
+ // so we have to account for that as well.
+ let alpha_depth = builder.alpha_bits.unwrap_or(8);
+ let color_depth = builder.color_bits.unwrap_or(24) + alpha_depth;
+
+ let mut attributes = vec![
+ NSOpenGLPFADoubleBuffer as u32,
+ NSOpenGLPFAClosestPolicy as u32,
+ NSOpenGLPFAColorSize as u32, color_depth as u32,
+ NSOpenGLPFAAlphaSize as u32, alpha_depth as u32,
+ NSOpenGLPFADepthSize as u32, builder.depth_bits.unwrap_or(24) as u32,
+ NSOpenGLPFAStencilSize as u32, builder.stencil_bits.unwrap_or(8) as u32,
+ NSOpenGLPFAOpenGLProfile as u32, profile,
+ ];
+
+ // A color depth higher than 64 implies we're using either 16-bit
+ // floats or 32-bit floats and OS X requires a flag to be set
+ // accordingly.
+ if color_depth >= 64 {
+ attributes.push(NSOpenGLPFAColorFloat as u32);
+ }
+
+ builder.multisampling.map(|samples| {
+ attributes.push(NSOpenGLPFAMultisample as u32);
+ attributes.push(NSOpenGLPFASampleBuffers as u32); attributes.push(1);
+ attributes.push(NSOpenGLPFASamples as u32); attributes.push(samples as u32);
+ });
+
+ // attribute list must be null terminated.
+ attributes.push(0);
+ unsafe {
let pixelformat = IdRef::new(NSOpenGLPixelFormat::alloc(nil).initWithAttributes_(&attributes));
- pixelformat.non_nil().map(|pixelformat| {
+
+ if let Some(pixelformat) = pixelformat.non_nil() {
+
+ // TODO: Add context sharing
let context = IdRef::new(NSOpenGLContext::alloc(nil).initWithFormat_shareContext_(*pixelformat, nil));
- context.non_nil().map(|context| {
- context.setView_(view);
+
+ if let Some(cxt) = context.non_nil() {
+ let pf = {
+ let getValues_forAttribute_forVirtualScreen_ = |fmt: id,
+ vals: *mut GLint,
+ attrib: NSOpenGLPixelFormatAttribute,
+ screen: GLint| -> () {
+ msg_send![fmt, getValues:vals forAttribute:attrib forVirtualScreen:screen]
+ };
+ let get_attr = |attrib: NSOpenGLPixelFormatAttribute| -> i32 {
+ let mut value = 0;
+ // TODO: Wait for servo/rust-cocoa/#85 to get merged
+ /*NSOpenGLPixelFormat::*/getValues_forAttribute_forVirtualScreen_(
+ *pixelformat,
+ &mut value,
+ attrib,
+ NSOpenGLContext::currentVirtualScreen(*cxt));
+
+ value
+ };
+
+ PixelFormat {
+ hardware_accelerated: get_attr(NSOpenGLPFAAccelerated) != 0,
+ color_bits: (get_attr(NSOpenGLPFAColorSize) - get_attr(NSOpenGLPFAAlphaSize)) as u8,
+ alpha_bits: get_attr(NSOpenGLPFAAlphaSize) as u8,
+ depth_bits: get_attr(NSOpenGLPFADepthSize) as u8,
+ stencil_bits: get_attr(NSOpenGLPFAStencilSize) as u8,
+ stereoscopy: get_attr(NSOpenGLPFAStereo) != 0,
+ double_buffer: get_attr(NSOpenGLPFADoubleBuffer) != 0,
+ multisampling: if get_attr(NSOpenGLPFAMultisample) > 0 {
+ Some(get_attr(NSOpenGLPFASamples) as u16)
+ } else {
+ None
+ },
+ srgb: true,
+ }
+ };
+
+ cxt.setView_(view);
if builder.vsync {
let value = 1;
- context.setValues_forParameter_(&value, NSOpenGLContextParameter::NSOpenGLCPSwapInterval);
+ cxt.setValues_forParameter_(&value, NSOpenGLContextParameter::NSOpenGLCPSwapInterval);
}
- context
- })
- }).unwrap_or(None)
+
+ (Some(cxt), Some(pf))
+ } else {
+ (None, None)
+ }
+ } else {
+ (None, None)
+ }
}
}
@@ -654,7 +718,7 @@ impl Window {
}
pub fn get_pixel_format(&self) -> PixelFormat {
- unimplemented!();
+ self.pixel_format.clone()
}
pub fn set_window_resize_callback(&mut self, callback: Option<fn(u32, u32)>) {
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-22 20:34:18 +0000