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mod errors;
mod texture_1d;
pub use self::texture_1d::*;
mod texture_2d;
pub use self::texture_2d::*;
mod texture_3d;
pub use self::texture_3d::*;
mod texture_cubemap;
pub use self::texture_cubemap::*;
mod texture_buffer;
pub use self::texture_buffer::*;
use std;
use std::cell::Cell;
use raw::*;
use self::errors::*;
pub trait Texture {
fn get_id(&self) -> TextureId;
fn get_bindless_texture_id(&self) -> TextureBindlessId;
fn make_resident_texture(&self) -> ResidentTexture;
fn get_target(&self) -> TextureTarget;
}
pub trait TextureDataPrimitive {}
impl TextureDataPrimitive for i8 {}
impl TextureDataPrimitive for i16 {}
impl TextureDataPrimitive for i32 {}
impl TextureDataPrimitive for u8 {}
impl TextureDataPrimitive for u16 {}
impl TextureDataPrimitive for u32 {}
impl TextureDataPrimitive for f32 {}
#[derive(Debug)]
pub struct ResidentTexture<'a> {
bindless_id: TextureBindlessId,
bindless_counter: &'a Cell<usize>,
}
impl<'a> ResidentTexture<'a> {
#[allow(unused_must_use)]
pub fn new(
bindless_id: TextureBindlessId,
bindless_counter: &'a Cell<usize>,
) -> ResidentTexture<'a> {
let counter = bindless_counter.get();
if counter == 0 {
unsafe {
make_texture_handle_resident(bindless_id.into());
}
}
bindless_counter.set(counter + 1);
ResidentTexture {
bindless_id: bindless_id,
bindless_counter: bindless_counter,
}
}
pub fn get_id(&self) -> TextureBindlessId {
self.bindless_id
}
}
impl<'a> Drop for ResidentTexture<'a> {
#[allow(unused_must_use)]
fn drop(&mut self) {
let counter = self.bindless_counter.get();
if counter == 1 {
unsafe {
make_texture_handle_non_resident(self.bindless_id.into());
}
}
self.bindless_counter.set(counter - 1);
}
}
#[derive(Debug)]
pub struct ResidentImage {
bindless_id: ImageBindlessId,
}
impl ResidentImage {
#[allow(unused_must_use)]
pub fn new(bindless_id: ImageBindlessId, access: ImageAccess) -> Result<ResidentImage> {
use raw::get_error;
unsafe {
make_image_handle_resident(bindless_id.into(), access);
}
match get_error(()) {
Ok(_) => {}
Err(e) => Err(e).chain_err(|| "Could not make image handle resident")?,
}
Ok(ResidentImage {
bindless_id: bindless_id,
})
}
pub fn get_id(&self) -> ImageBindlessId {
self.bindless_id
}
}
impl Drop for ResidentImage {
#[allow(unused_must_use)]
fn drop(&mut self) {
unsafe {
make_image_handle_non_resident(self.bindless_id.into());
}
}
}
fn discrete_floored_log2(mut n: usize) -> usize {
let mut ret = 0;
while n > 1 {
n /= 2;
ret += 1;
}
ret
}
fn texture_size_mipmap(size: usize, level: usize) -> usize {
std::cmp::max(1, size / 2u32.pow(level as u32) as usize)
}