From 3054e2ee0236672ae88bd124e60ba49aae701695 Mon Sep 17 00:00:00 2001 From: Pierre Krieger Date: Mon, 21 Sep 2015 10:11:32 +0200 Subject: [PATCH] Switch EGL to use only pf_reqs and opengl --- src/api/android/mod.rs | 5 ++-- src/api/egl/mod.rs | 39 +++++++++++++++--------------- src/api/wayland/mod.rs | 2 +- src/api/win32/init.rs | 2 +- src/api/x11/window.rs | 5 ++-- src/lib.rs | 48 +++++++++++++++++++++---------------- src/platform/windows/mod.rs | 5 ++-- 7 files changed, 58 insertions(+), 48 deletions(-) diff --git a/src/api/android/mod.rs b/src/api/android/mod.rs index 0f770c27..ecea9b38 100644 --- a/src/api/android/mod.rs +++ b/src/api/android/mod.rs @@ -112,7 +112,8 @@ impl Window { return Err(OsError(format!("Android's native window is null"))); } - let context = try!(EglContext::new(egl::ffi::egl::Egl, &builder, egl::NativeDisplay::Android) + let context = try!(EglContext::new(egl::ffi::egl::Egl, &builder.pf_reqs, &builder.opengl, + egl::NativeDisplay::Android) .and_then(|p| p.finish(native_window as *const _))); let (tx, rx) = channel(); @@ -256,7 +257,7 @@ impl HeadlessContext { /// See the docs in the crate root file. pub fn new(builder: BuilderAttribs) -> Result { let context = try!(EglContext::new(egl::ffi::egl::Egl, &builder, egl::NativeDisplay::Android)); - let context = try!(context.finish_pbuffer()); + let context = try!(context.finish_pbuffer(builder.window.dimensions.unwrap_or((800, 600)))); // TODO: Ok(HeadlessContext(context)) } } diff --git a/src/api/egl/mod.rs b/src/api/egl/mod.rs index 32ab71e4..56b709d0 100644 --- a/src/api/egl/mod.rs +++ b/src/api/egl/mod.rs @@ -2,12 +2,13 @@ target_os = "dragonfly", target_os = "freebsd"))] #![allow(unused_variables)] -use BuilderAttribs; use ContextError; use CreationError; +use GlAttributes; use GlContext; use GlRequest; use PixelFormat; +use PixelFormatRequirements; use Robustness; use Api; @@ -158,11 +159,11 @@ impl Context { /// This function initializes some things and chooses the pixel format. /// /// To finish the process, you must call `.finish(window)` on the `ContextPrototype`. - pub fn new<'a>(egl: ffi::egl::Egl, builder: &'a BuilderAttribs<'a>, - native_display: NativeDisplay) + pub fn new<'a>(egl: ffi::egl::Egl, pf_reqs: &PixelFormatRequirements, + opengl: &'a GlAttributes<&'a Context>, native_display: NativeDisplay) -> Result, CreationError> { - if builder.opengl.sharing.is_some() { + if opengl.sharing.is_some() { unimplemented!() } @@ -197,7 +198,7 @@ impl Context { // binding the right API and choosing the version let (version, api) = unsafe { - match builder.opengl.version { + match opengl.version { GlRequest::Latest => { if egl_version >= (1, 4) { if egl.BindAPI(ffi::egl::OPENGL_API) != 0 { @@ -246,10 +247,10 @@ impl Context { }; let configs = unsafe { try!(enumerate_configs(&egl, display, &egl_version, api, version)) }; - let (config_id, pixel_format) = try!(builder.choose_pixel_format(configs.into_iter())); + let (config_id, pixel_format) = try!(pf_reqs.choose_pixel_format(configs.into_iter())); Ok(ContextPrototype { - builder: builder, + opengl: opengl, egl: egl, display: display, egl_version: egl_version, @@ -330,7 +331,7 @@ impl Drop for Context { } pub struct ContextPrototype<'a> { - builder: &'a BuilderAttribs<'a>, + opengl: &'a GlAttributes<&'a Context>, egl: ffi::egl::Egl, display: ffi::egl::types::EGLDisplay, egl_version: (ffi::egl::types::EGLint, ffi::egl::types::EGLint), @@ -366,9 +367,7 @@ impl<'a> ContextPrototype<'a> { self.finish_impl(surface) } - pub fn finish_pbuffer(self) -> Result { - let dimensions = self.builder.window.dimensions.unwrap_or((800, 600)); - + pub fn finish_pbuffer(self, dimensions: (u32, u32)) -> Result { let attrs = &[ ffi::egl::WIDTH as libc::c_int, dimensions.0 as libc::c_int, ffi::egl::HEIGHT as libc::c_int, dimensions.1 as libc::c_int, @@ -394,18 +393,18 @@ impl<'a> ContextPrototype<'a> { if let Some(version) = self.version { try!(create_context(&self.egl, self.display, &self.egl_version, &self.extensions, self.api, version, self.config_id, - self.builder.opengl.debug, self.builder.opengl.robustness)) + self.opengl.debug, self.opengl.robustness)) } else if self.api == Api::OpenGlEs { if let Ok(ctxt) = create_context(&self.egl, self.display, &self.egl_version, &self.extensions, self.api, (2, 0), self.config_id, - self.builder.opengl.debug, self.builder.opengl.robustness) + self.opengl.debug, self.opengl.robustness) { ctxt } else if let Ok(ctxt) = create_context(&self.egl, self.display, &self.egl_version, &self.extensions, self.api, (1, 0), - self.config_id, self.builder.opengl.debug, - self.builder.opengl.robustness) + self.config_id, self.opengl.debug, + self.opengl.robustness) { ctxt } else { @@ -415,19 +414,19 @@ impl<'a> ContextPrototype<'a> { } else { if let Ok(ctxt) = create_context(&self.egl, self.display, &self.egl_version, &self.extensions, self.api, (3, 2), self.config_id, - self.builder.opengl.debug, self.builder.opengl.robustness) + self.opengl.debug, self.opengl.robustness) { ctxt } else if let Ok(ctxt) = create_context(&self.egl, self.display, &self.egl_version, &self.extensions, self.api, (3, 1), - self.config_id, self.builder.opengl.debug, - self.builder.opengl.robustness) + self.config_id, self.opengl.debug, + self.opengl.robustness) { ctxt } else if let Ok(ctxt) = create_context(&self.egl, self.display, &self.egl_version, &self.extensions, self.api, (1, 0), - self.config_id, self.builder.opengl.debug, - self.builder.opengl.robustness) + self.config_id, self.opengl.debug, + self.opengl.robustness) { ctxt } else { diff --git a/src/api/wayland/mod.rs b/src/api/wayland/mod.rs index 7bc57988..56b92184 100644 --- a/src/api/wayland/mod.rs +++ b/src/api/wayland/mod.rs @@ -291,7 +291,7 @@ impl Window { }); try!(EglContext::new( egl, - &builder, + &builder.pf_reqs, &builder.opengl.clone().map_sharing(|_| unimplemented!()), // TODO: egl::NativeDisplay::Wayland(Some(wayland_context.display.ptr() as *const _))) .and_then(|p| p.finish((**shell_window.get_shell()).ptr() as *const _)) ) diff --git a/src/api/win32/init.rs b/src/api/win32/init.rs index 8c2d86c6..ad6d2ead 100644 --- a/src/api/win32/init.rs +++ b/src/api/win32/init.rs @@ -162,7 +162,7 @@ unsafe fn init(title: Vec, builder: BuilderAttribs<'static>, let context = match builder.opengl.version { GlRequest::Specific(Api::OpenGlEs, (_major, _minor)) => { if let Some(egl) = egl { - if let Ok(c) = EglContext::new(egl, &builder, + if let Ok(c) = EglContext::new(egl, &builder.pf_reqs, &builder.opengl.clone().map_sharing(|_| unimplemented!()), egl::NativeDisplay::Other(Some(ptr::null()))) .and_then(|p| p.finish(real_window.0)) { diff --git a/src/api/x11/window.rs b/src/api/x11/window.rs index d39e701b..0a9189a0 100644 --- a/src/api/x11/window.rs +++ b/src/api/x11/window.rs @@ -349,6 +349,7 @@ impl Window { Egl(::api::egl::ContextPrototype<'a>), } let builder_clone = builder.clone(); + let builder_clone_opengl = builder_clone.opengl.clone().map_sharing(|_| unimplemented!()); let context = match builder.opengl.version { GlRequest::Latest | GlRequest::Specific(Api::OpenGl, _) | GlRequest::GlThenGles { .. } => { // GLX should be preferred over EGL, otherwise crashes may occur @@ -356,14 +357,14 @@ impl Window { if let Some(ref glx) = display.glx { Prototype::Glx(try!(GlxContext::new(glx.clone(), &display.xlib, &builder_clone, display.display))) } else if let Some(ref egl) = display.egl { - Prototype::Egl(try!(EglContext::new(egl.clone(), &builder_clone, egl::NativeDisplay::X11(Some(display.display as *const _))))) + Prototype::Egl(try!(EglContext::new(egl.clone(), &builder_clone.pf_reqs, &builder_clone_opengl, egl::NativeDisplay::X11(Some(display.display as *const _))))) } else { return Err(CreationError::NotSupported); } }, GlRequest::Specific(Api::OpenGlEs, _) => { if let Some(ref egl) = display.egl { - Prototype::Egl(try!(EglContext::new(egl.clone(), &builder_clone, egl::NativeDisplay::X11(Some(display.display as *const _))))) + Prototype::Egl(try!(EglContext::new(egl.clone(), &builder_clone.pf_reqs, &builder_clone_opengl, egl::NativeDisplay::X11(Some(display.display as *const _))))) } else { return Err(CreationError::NotSupported); } diff --git a/src/lib.rs b/src/lib.rs index a5155f9c..8c930362 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -411,32 +411,53 @@ impl<'a> BuilderAttribs<'a> { (new_attribs, sharing) } + fn choose_pixel_format(&self, iter: I) -> Result<(T, PixelFormat), CreationError> + where I: IntoIterator, T: Clone + { + self.pf_reqs.choose_pixel_format(iter) + } +} + +/// VERY UNSTABLE! Describes how the backend should choose a pixel format. +#[derive(Clone, Debug)] +#[allow(missing_docs)] +pub struct PixelFormatRequirements { + pub multisampling: Option, + pub depth_bits: Option, + pub stencil_bits: Option, + pub color_bits: Option, + pub alpha_bits: Option, + pub stereoscopy: bool, + pub srgb: Option, +} + +impl PixelFormatRequirements { fn choose_pixel_format(&self, iter: I) -> Result<(T, PixelFormat), CreationError> where I: IntoIterator, T: Clone { // filtering formats that don't match the requirements let iter = iter.into_iter().filter(|&(_, ref format)| { - if format.color_bits < self.pf_reqs.color_bits.unwrap_or(0) { + if format.color_bits < self.color_bits.unwrap_or(0) { return false; } - if format.alpha_bits < self.pf_reqs.alpha_bits.unwrap_or(0) { + if format.alpha_bits < self.alpha_bits.unwrap_or(0) { return false; } - if format.depth_bits < self.pf_reqs.depth_bits.unwrap_or(0) { + if format.depth_bits < self.depth_bits.unwrap_or(0) { return false; } - if format.stencil_bits < self.pf_reqs.stencil_bits.unwrap_or(0) { + if format.stencil_bits < self.stencil_bits.unwrap_or(0) { return false; } - if !format.stereoscopy && self.pf_reqs.stereoscopy { + if !format.stereoscopy && self.stereoscopy { return false; } - if let Some(req_ms) = self.pf_reqs.multisampling { + if let Some(req_ms) = self.multisampling { match format.multisampling { Some(val) if val >= req_ms => (), _ => return false @@ -447,7 +468,7 @@ impl<'a> BuilderAttribs<'a> { } } - if let Some(srgb) = self.pf_reqs.srgb { + if let Some(srgb) = self.srgb { if srgb != format.srgb { return false; } @@ -511,19 +532,6 @@ impl<'a> BuilderAttribs<'a> { } } -/// VERY UNSTABLE! Describes how the backend should choose a pixel format. -#[derive(Clone, Debug)] -#[allow(missing_docs)] -pub struct PixelFormatRequirements { - pub multisampling: Option, - pub depth_bits: Option, - pub stencil_bits: Option, - pub color_bits: Option, - pub alpha_bits: Option, - pub stereoscopy: bool, - pub srgb: Option, -} - impl Default for PixelFormatRequirements { fn default() -> PixelFormatRequirements { PixelFormatRequirements { diff --git a/src/platform/windows/mod.rs b/src/platform/windows/mod.rs index 521939c7..918b779e 100644 --- a/src/platform/windows/mod.rs +++ b/src/platform/windows/mod.rs @@ -91,8 +91,9 @@ impl HeadlessContext { // if EGL is available, we try using EGL first // if EGL returns an error, we try the hidden window method if let &Some(ref egl) = &*EGL { - let context = EglContext::new(egl.0.clone(), &builder, egl::NativeDisplay::Other(None)) - .and_then(|prototype| prototype.finish_pbuffer()) + let context = EglContext::new(egl.0.clone(), &builder.pf_reqs, &builder.opengl.clone().map_sharing(|_| unimplemented!()), // TODO: + egl::NativeDisplay::Other(None)) + .and_then(|prototype| prototype.finish_pbuffer(builder.window.dimensions.unwrap_or((800, 600)))) // TODO: .map(|ctxt| HeadlessContext::EglPbuffer(ctxt)); if let Ok(context) = context {