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Use union for ClearValue

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This commit is contained in:
Maik Klein 2018-02-15 19:21:45 +01:00
parent 40ead80681
commit 1b612cb1bf
1 changed files with 9 additions and 109 deletions
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118
ash/src/vk.rs
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@ -2228,7 +2228,6 @@ pub mod types {
pub stencil: uint32_t,
}
#[derive(Debug, Clone, Copy, Hash)]
#[repr(C)]
pub struct ClearAttachment {
pub aspect_mask: ImageAspectFlags,
@ -2597,120 +2596,21 @@ pub mod types {
pub p_view: *const c_void,
}
/// Temporary Hard-Coded union hack; will be automatically generated when actual unions become stable
#[repr(C)]
#[derive(Debug, Clone)]
pub struct ClearColorValue {
data: [u8; 16],
#[derive(Copy, Clone)]
pub union ClearValue {
pub depth: ClearDepthStencilValue,
pub color: ClearColorValue
}
impl ClearColorValue {
pub unsafe fn float32(&self) -> &[c_float; 4] {
use std::mem;
mem::transmute(&self.data)
}
pub unsafe fn int32(&self) -> &[int32_t; 4] {
use std::mem;
mem::transmute(&self.data)
}
pub unsafe fn uint32(&self) -> &[uint32_t; 4] {
use std::mem;
mem::transmute(&self.data)
}
pub unsafe fn float32_mut(&mut self) -> &mut [c_float; 4] {
use std::mem;
mem::transmute(&mut self.data)
}
pub unsafe fn int32_mut(&mut self) -> &mut [int32_t; 4] {
use std::mem;
mem::transmute(&mut self.data)
}
pub unsafe fn uint32_mut(&mut self) -> &mut [uint32_t; 4] {
use std::mem;
mem::transmute(&mut self.data)
}
pub fn new_float32(float32: [c_float; 4]) -> ClearColorValue {
use std::mem;
unsafe {
let mut union: ClearColorValue = mem::zeroed();
union.data = mem::transmute(float32);
union
}
}
pub fn new_int32(int32: [int32_t; 4]) -> ClearColorValue {
use std::mem;
unsafe {
let mut union: ClearColorValue = mem::zeroed();
union.data = mem::transmute(int32);
union
}
}
pub fn new_uint32(uint32: [uint32_t; 4]) -> ClearColorValue {
use std::mem;
unsafe {
let mut union: ClearColorValue = mem::zeroed();
union.data = mem::transmute(uint32);
union
}
}
}
/// Temporary Hard-Coded union hack; will be automatically generated when actual unions become stable
#[repr(C)]
#[derive(Debug, Clone, Copy, Hash)]
pub struct ClearValue {
data: [u8; 16],
#[derive(Copy, Clone)]
pub union ClearColorValue{
pub float32: [f32; 4],
pub int32: [i32; 4],
pub uint32: [u32; 4],
}
impl ClearValue {
pub unsafe fn color(&self) -> &ClearColorValue {
use std::mem;
mem::transmute(&self.data)
}
pub unsafe fn depth_stencil(&self) -> &ClearDepthStencilValue {
use std::mem;
mem::transmute(&self.data)
}
pub unsafe fn color_mut(&mut self) -> &mut ClearColorValue {
use std::mem;
mem::transmute(&mut self.data)
}
pub unsafe fn depth_stencil_mut(&mut self) -> &mut ClearDepthStencilValue {
use std::mem;
mem::transmute(&mut self.data)
}
pub fn new_color(color: ClearColorValue) -> ClearValue {
use std::mem;
unsafe {
let mut union: ClearValue = mem::zeroed();
union.data = mem::transmute(color);
union
}
}
pub fn new_depth_stencil(depth_stencil: ClearDepthStencilValue) -> ClearValue {
use std::mem;
unsafe {
let mut union: ClearValue = mem::zeroed();
union.data = mem::transmute_copy(&depth_stencil);
union
}
}
}
#[repr(C)]
#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
pub enum PipelineCacheHeaderVersion {