1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389
// Copyright (c) 2016 The vulkano developers
// Licensed under the Apache License, Version 2.0
// <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT
// license <LICENSE-MIT or http://opensource.org/licenses/MIT>,
// at your option. All files in the project carrying such
// notice may not be copied, modified, or distributed except
// according to those terms.
//! Allows you to create surfaces that fill a whole display, outside of the windowing system.
//!
//! **As far as the author knows, no existing device supports these features. Therefore the code
//! here is mostly a draft and needs rework in both the API and the implementation.**
//!
//! The purpose of the objects in this module is to let you create a `Surface` object that
//! represents a location on the screen. This is done in four steps:
//!
//! - Choose a `Display` where the surface will be located. A `Display` represents a display
//! display, usually a monitor. The available displays can be enumerated with
//! `Display::enumerate`.
//! - Choose a `DisplayMode`, which is the combination of a display, a resolution and a refresh
//! rate. You can enumerate the modes available on a display with `Display::display_modes`, or
//! attempt to create your own mode with `TODO`.
//! - Choose a `DisplayPlane`. A display can show multiple planes in a stacking fashion.
//! - Create a `Surface` object with `Surface::from_display_mode` and pass the chosen `DisplayMode`
//! and `DisplayPlane`.
#![allow(dead_code)] // TODO: this module isn't finished
#![allow(unused_variables)] // TODO: this module isn't finished
use std::ffi::CStr;
use std::ptr;
use std::sync::Arc;
use std::vec::IntoIter;
use instance::Instance;
use instance::PhysicalDevice;
use swapchain::SupportedSurfaceTransforms;
use swapchain::capabilities;
use OomError;
use VulkanObject;
use check_errors;
use vk;
// TODO: extract this to a `display` module and solve the visibility problems
/// ?
// TODO: plane capabilities
// TODO: store properties in the instance?
pub struct DisplayPlane {
instance: Arc<Instance>,
physical_device: usize,
index: u32,
properties: vk::DisplayPlanePropertiesKHR,
supported_displays: Vec<vk::DisplayKHR>,
}
impl DisplayPlane {
/// See the docs of enumerate().
pub fn enumerate_raw(device: PhysicalDevice) -> Result<IntoIter<DisplayPlane>, OomError> {
let vk = device.instance().pointers();
assert!(device.instance().loaded_extensions().khr_display); // TODO: return error instead
let num = unsafe {
let mut num: u32 = 0;
check_errors(vk.GetPhysicalDeviceDisplayPlanePropertiesKHR(device.internal_object(),
&mut num,
ptr::null_mut()))?;
num
};
let planes: Vec<vk::DisplayPlanePropertiesKHR> = unsafe {
let mut planes = Vec::with_capacity(num as usize);
let mut num = num;
check_errors(vk.GetPhysicalDeviceDisplayPlanePropertiesKHR(device.internal_object(),
&mut num,
planes.as_mut_ptr()))?;
planes.set_len(num as usize);
planes
};
Ok(planes.into_iter().enumerate().map(|(index, prop)| {
let num = unsafe {
let mut num: u32 = 0;
check_errors(vk.GetDisplayPlaneSupportedDisplaysKHR(device.internal_object(), index as u32,
&mut num, ptr::null_mut())).unwrap(); // TODO: shouldn't unwrap
num
};
let supported_displays: Vec<vk::DisplayKHR> = unsafe {
let mut displays = Vec::with_capacity(num as usize);
let mut num = num;
check_errors(vk.GetDisplayPlaneSupportedDisplaysKHR(device.internal_object(),
index as u32, &mut num,
displays.as_mut_ptr())).unwrap(); // TODO: shouldn't unwrap
displays.set_len(num as usize);
displays
};
DisplayPlane {
instance: device.instance().clone(),
physical_device: device.index(),
index: index as u32,
properties: prop,
supported_displays: supported_displays,
}
}).collect::<Vec<_>>().into_iter())
}
/// Enumerates all the display planes that are available on a given physical device.
///
/// # Panic
///
/// - Panics if the device or host ran out of memory.
///
// TODO: move iterator creation here from raw constructor?
#[inline]
pub fn enumerate(device: PhysicalDevice) -> IntoIter<DisplayPlane> {
DisplayPlane::enumerate_raw(device).unwrap()
}
/// Returns the physical device that was used to create this display.
#[inline]
pub fn physical_device(&self) -> PhysicalDevice {
PhysicalDevice::from_index(&self.instance, self.physical_device).unwrap()
}
/// Returns the index of the plane.
#[inline]
pub fn index(&self) -> u32 {
self.index
}
/// Returns true if this plane supports the given display.
#[inline]
pub fn supports(&self, display: &Display) -> bool {
// making sure that the physical device is the same
if self.physical_device().internal_object() != display.physical_device().internal_object() {
return false;
}
self.supported_displays
.iter()
.find(|&&d| d == display.internal_object())
.is_some()
}
}
/// Represents a monitor connected to a physical device.
// TODO: store properties in the instance?
#[derive(Clone)]
pub struct Display {
instance: Arc<Instance>,
physical_device: usize,
properties: Arc<vk::DisplayPropertiesKHR>, // TODO: Arc because struct isn't clone
}
impl Display {
/// See the docs of enumerate().
pub fn enumerate_raw(device: PhysicalDevice) -> Result<IntoIter<Display>, OomError> {
let vk = device.instance().pointers();
assert!(device.instance().loaded_extensions().khr_display); // TODO: return error instead
let num = unsafe {
let mut num = 0;
check_errors(vk.GetPhysicalDeviceDisplayPropertiesKHR(device.internal_object(),
&mut num,
ptr::null_mut()))?;
num
};
let displays: Vec<vk::DisplayPropertiesKHR> = unsafe {
let mut displays = Vec::with_capacity(num as usize);
let mut num = num;
check_errors(vk.GetPhysicalDeviceDisplayPropertiesKHR(device.internal_object(),
&mut num,
displays.as_mut_ptr()))?;
displays.set_len(num as usize);
displays
};
Ok(displays
.into_iter()
.map(|prop| {
Display {
instance: device.instance().clone(),
physical_device: device.index(),
properties: Arc::new(prop),
}
})
.collect::<Vec<_>>()
.into_iter())
}
/// Enumerates all the displays that are available on a given physical device.
///
/// # Panic
///
/// - Panics if the device or host ran out of memory.
///
// TODO: move iterator creation here from raw constructor?
#[inline]
pub fn enumerate(device: PhysicalDevice) -> IntoIter<Display> {
Display::enumerate_raw(device).unwrap()
}
/// Returns the name of the display.
#[inline]
pub fn name(&self) -> &str {
unsafe {
CStr::from_ptr(self.properties.displayName)
.to_str()
.expect("non UTF-8 characters in display name")
}
}
/// Returns the physical device that was used to create this display.
#[inline]
pub fn physical_device(&self) -> PhysicalDevice {
PhysicalDevice::from_index(&self.instance, self.physical_device).unwrap()
}
/// Returns the physical dimensions of the display in millimeters.
#[inline]
pub fn physical_dimensions(&self) -> [u32; 2] {
let ref r = self.properties.physicalDimensions;
[r.width, r.height]
}
/// Returns the physical, native, or preferred resolution of the display.
///
/// > **Note**: The display is usually still capable of displaying other resolutions. This is
/// > only the "best" resolution.
#[inline]
pub fn physical_resolution(&self) -> [u32; 2] {
let ref r = self.properties.physicalResolution;
[r.width, r.height]
}
/// Returns the transforms supported by this display.
#[inline]
pub fn supported_transforms(&self) -> SupportedSurfaceTransforms {
capabilities::surface_transforms_from_bits(self.properties.supportedTransforms)
}
/// Returns true if TODO.
#[inline]
pub fn plane_reorder_possible(&self) -> bool {
self.properties.planeReorderPossible != 0
}
/// Returns true if TODO.
#[inline]
pub fn persistent_content(&self) -> bool {
self.properties.persistentContent != 0
}
/// See the docs of display_modes().
pub fn display_modes_raw(&self) -> Result<IntoIter<DisplayMode>, OomError> {
let vk = self.instance.pointers();
let num = unsafe {
let mut num = 0;
check_errors(vk.GetDisplayModePropertiesKHR(self.physical_device().internal_object(),
self.properties.display,
&mut num,
ptr::null_mut()))?;
num
};
let modes: Vec<vk::DisplayModePropertiesKHR> = unsafe {
let mut modes = Vec::with_capacity(num as usize);
let mut num = num;
check_errors(vk.GetDisplayModePropertiesKHR(self.physical_device().internal_object(),
self.properties.display,
&mut num,
modes.as_mut_ptr()))?;
modes.set_len(num as usize);
modes
};
Ok(modes
.into_iter()
.map(|mode| {
DisplayMode {
display: self.clone(),
display_mode: mode.displayMode,
parameters: mode.parameters,
}
})
.collect::<Vec<_>>()
.into_iter())
}
/// Returns a list of all modes available on this display.
///
/// # Panic
///
/// - Panics if the device or host ran out of memory.
///
// TODO: move iterator creation here from display_modes_raw?
#[inline]
pub fn display_modes(&self) -> IntoIter<DisplayMode> {
self.display_modes_raw().unwrap()
}
}
unsafe impl VulkanObject for Display {
type Object = vk::DisplayKHR;
const TYPE: vk::DebugReportObjectTypeEXT = vk::DEBUG_REPORT_OBJECT_TYPE_DISPLAY_KHR_EXT;
#[inline]
fn internal_object(&self) -> vk::DisplayKHR {
self.properties.display
}
}
/// Represents a mode on a specific display.
pub struct DisplayMode {
display: Display,
display_mode: vk::DisplayModeKHR,
parameters: vk::DisplayModeParametersKHR,
}
impl DisplayMode {
/*pub fn new(display: &Display) -> Result<Arc<DisplayMode>, OomError> {
let vk = instance.pointers();
assert!(device.instance().loaded_extensions().khr_display); // TODO: return error instead
let parameters = vk::DisplayModeParametersKHR {
visibleRegion: vk::Extent2D { width: , height: },
refreshRate: ,
};
let display_mode = {
let infos = vk::DisplayModeCreateInfoKHR {
sType: vk::STRUCTURE_TYPE_DISPLAY_MODE_CREATE_INFO_KHR,
pNext: ptr::null(),
flags: 0, // reserved
parameters: parameters,
};
let mut output = mem::uninitialized();
try!(check_errors(vk.CreateDisplayModeKHR(display.device.internal_object(),
display.display, &infos, ptr::null(),
&mut output)));
output
};
Ok(Arc::new(DisplayMode {
instance: display.device.instance().clone(),
display_mode: display_mode,
parameters: ,
}))
}*/
/// Returns the display corresponding to this mode.
#[inline]
pub fn display(&self) -> &Display {
&self.display
}
/// Returns the dimensions of the region that is visible on the monitor.
#[inline]
pub fn visible_region(&self) -> [u32; 2] {
let ref d = self.parameters.visibleRegion;
[d.width, d.height]
}
/// Returns the refresh rate of this mode.
#[inline]
pub fn refresh_rate(&self) -> u32 {
self.parameters.refreshRate
}
}
unsafe impl VulkanObject for DisplayMode {
type Object = vk::DisplayModeKHR;
const TYPE: vk::DebugReportObjectTypeEXT = vk::DEBUG_REPORT_OBJECT_TYPE_DISPLAY_MODE_KHR_EXT;
#[inline]
fn internal_object(&self) -> vk::DisplayModeKHR {
self.display_mode
}
}