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Merge #108

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108: fix overly conservative function pointer retrieval r=kvark a=msiglreith

Addresses some parts of https://github.com/gfx-rs/portability/pull/98
Current implementation rejects too agressively which is not required, in most cases the spec defines the returned pointers as undefined. InstanceProcAddr also doesn't correctly retrieve some device proc addresses.

CTS looks fine 
(9 green, 3 unsupported, `dEQP-VK.api.device_init.create_instance_device_intentional_alloc_fail` crashes but seems unrelated)

cc @grovesNL 

Co-authored-by: msiglreith <m.siglreith@gmail.com>
This commit is contained in:
bors[bot] 2018-06-25 17:29:39 +00:00
parent 0764227271 d77d9609a6
commit 468147d823
1 changed files with 33 additions and 70 deletions
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79
libportability-gfx/src/impls.rs
View file

@ -4,15 +4,15 @@ use hal::{
Surface, Swapchain as HalSwapchain, FrameSync,
};
use hal::buffer::IndexBufferView;
use hal::command::RawCommandBuffer;
use hal::device::WaitFor;
use hal::pool::RawCommandPool;
use hal::command::RawCommandBuffer;
use hal::queue::RawCommandQueue;
use std::ffi::{CStr, CString};
use std::{mem, ptr};
#[cfg(feature = "renderdoc")]
use std::os::raw::c_void;
use std::{mem, ptr};
use super::*;
@ -61,7 +61,9 @@ pub extern "C" fn gfxCreateInstance(
// Compare major and minor parts of version only - patch is ignored
let (supported_major, supported_minor, _) = VERSION;
let requested_major_minor = ai.apiVersion >> 12;
let version_supported = requested_major_minor & (supported_major << 10 | supported_minor) == requested_major_minor;
let version_supported = requested_major_minor
& (supported_major << 10 | supported_minor)
== requested_major_minor;
if !version_supported {
return VkResult::VK_ERROR_INCOMPATIBLE_DRIVER;
}
@ -70,13 +72,16 @@ pub extern "C" fn gfxCreateInstance(
let enabled_extensions = if create_info.enabledExtensionCount == 0 {
Vec::new()
} else {
let extensions = slice::from_raw_parts(create_info.ppEnabledExtensionNames, create_info.enabledExtensionCount as _)
.iter()
.map(|raw| CStr::from_ptr(*raw)
let extensions = slice::from_raw_parts(
create_info.ppEnabledExtensionNames,
create_info.enabledExtensionCount as _,
).iter()
.map(|raw| {
CStr::from_ptr(*raw)
.to_str()
.expect("Invalid extension name")
.to_owned()
)
})
.collect::<Vec<_>>();
for extension in &extensions {
if !INSTANCE_EXTENSION_NAMES.contains(&extension.as_str()) {
@ -366,43 +371,6 @@ pub extern "C" fn gfxGetInstanceProcAddr(
return device_addr;
}
// Required instance
match name {
"vkEnumerateInstanceVersion" |
"vkEnumerateInstanceExtensionProperties" |
"vkEnumerateInstanceLayerProperties" |
"vkCreateInstance" => {
// Instance is not required for these special cases
// See https://www.khronos.org/registry/vulkan/specs/1.1-extensions/man/html/vkGetInstanceProcAddr.html
}
_ => {
if instance.as_ref().is_none() {
return None;
}
}
}
// Required extensions
match name {
"vkGetPhysicalDeviceSurfaceSupportKHR" |
"vkGetPhysicalDeviceSurfaceCapabilitiesKHR" |
"vkGetPhysicalDeviceSurfaceFormatsKHR" |
"vkGetPhysicalDeviceSurfacePresentModesKHR" |
"vkDestroySurfaceKHR"
=> {
let surface_extension_enabled = instance
.as_ref()
.unwrap()
.enabled_extensions
.iter()
.any(|e| e == INSTANCE_EXTENSION_NAME_VK_KHR_SURFACE);
if !surface_extension_enabled {
return None;
}
}
_ => {}
}
proc_addr!{ name,
vkCreateInstance, PFN_vkCreateInstance => gfxCreateInstance,
vkDestroyInstance, PFN_vkDestroyInstance => gfxDestroyInstance,
@ -446,22 +414,16 @@ pub extern "C" fn gfxGetDeviceProcAddr(
Err(_) => return None,
};
// Required device
if device.as_ref().is_none() {
return None;
}
// Required extensions
// Requesting the function pointer to an extensions which is available but not
// enabled with an valid device requires returning NULL.
if let Some(device) = device.as_ref() {
match name {
"vkCreateSwapchainKHR" |
"vkDestroySwapchainKHR" |
"vkGetSwapchainImagesKHR" |
"vkAcquireNextImageKHR" |
"vkQueuePresentKHR"
=> {
"vkCreateSwapchainKHR"
| "vkDestroySwapchainKHR"
| "vkGetSwapchainImagesKHR"
| "vkAcquireNextImageKHR"
| "vkQueuePresentKHR" => {
let swapchain_extension_enabled = device
.as_ref()
.unwrap()
.enabled_extensions
.iter()
.any(|e| e == DEVICE_EXTENSION_NAME_VK_KHR_SWAPCHAIN);
@ -471,6 +433,7 @@ pub extern "C" fn gfxGetDeviceProcAddr(
}
_ => {}
}
}
proc_addr!{ name,
vkGetDeviceProcAddr, PFN_vkGetDeviceProcAddr => gfxGetDeviceProcAddr,