bevy/crates/bevy_render/src/pipeline/vertex_format.rs
2020-07-16 17:11:52 -07:00

136 lines
3.3 KiB
Rust

use crate::Color;
use bevy_math::{Mat4, Vec2, Vec3, Vec4};
#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq)]
pub enum VertexFormat {
Uchar2 = 1,
Uchar4 = 3,
Char2 = 5,
Char4 = 7,
Uchar2Norm = 9,
Uchar4Norm = 11,
Char2Norm = 14,
Char4Norm = 16,
Ushort2 = 18,
Ushort4 = 20,
Short2 = 22,
Short4 = 24,
Ushort2Norm = 26,
Ushort4Norm = 28,
Short2Norm = 30,
Short4Norm = 32,
Half2 = 34,
Half4 = 36,
Float = 37,
Float2 = 38,
Float3 = 39,
Float4 = 40,
Uint = 41,
Uint2 = 42,
Uint3 = 43,
Uint4 = 44,
Int = 45,
Int2 = 46,
Int3 = 47,
Int4 = 48,
}
impl VertexFormat {
pub fn get_size(&self) -> u64 {
match *self {
VertexFormat::Uchar2 => 2,
VertexFormat::Uchar4 => 4,
VertexFormat::Char2 => 2,
VertexFormat::Char4 => 4,
VertexFormat::Uchar2Norm => 2,
VertexFormat::Uchar4Norm => 4,
VertexFormat::Char2Norm => 2,
VertexFormat::Char4Norm => 4,
VertexFormat::Ushort2 => 2 * 2,
VertexFormat::Ushort4 => 2 * 4,
VertexFormat::Short2 => 2 * 2,
VertexFormat::Short4 => 2 * 4,
VertexFormat::Ushort2Norm => 2 * 2,
VertexFormat::Ushort4Norm => 2 * 4,
VertexFormat::Short2Norm => 2 * 2,
VertexFormat::Short4Norm => 2 * 4,
VertexFormat::Half2 => 2 * 2,
VertexFormat::Half4 => 2 * 4,
VertexFormat::Float => 4,
VertexFormat::Float2 => 4 * 2,
VertexFormat::Float3 => 4 * 3,
VertexFormat::Float4 => 4 * 4,
VertexFormat::Uint => 4,
VertexFormat::Uint2 => 4 * 2,
VertexFormat::Uint3 => 4 * 3,
VertexFormat::Uint4 => 4 * 4,
VertexFormat::Int => 4,
VertexFormat::Int2 => 4 * 2,
VertexFormat::Int3 => 4 * 3,
VertexFormat::Int4 => 4 * 4,
}
}
}
pub trait AsVertexFormats {
fn as_vertex_formats() -> &'static [VertexFormat];
}
impl AsVertexFormats for f32 {
fn as_vertex_formats() -> &'static [VertexFormat] {
&[VertexFormat::Float]
}
}
impl AsVertexFormats for Vec2 {
fn as_vertex_formats() -> &'static [VertexFormat] {
&[VertexFormat::Float2]
}
}
impl AsVertexFormats for Vec3 {
fn as_vertex_formats() -> &'static [VertexFormat] {
&[VertexFormat::Float3]
}
}
impl AsVertexFormats for Vec4 {
fn as_vertex_formats() -> &'static [VertexFormat] {
&[VertexFormat::Float4]
}
}
impl AsVertexFormats for Mat4 {
fn as_vertex_formats() -> &'static [VertexFormat] {
&[
VertexFormat::Float4,
VertexFormat::Float4,
VertexFormat::Float4,
VertexFormat::Float4,
]
}
}
impl AsVertexFormats for Color {
fn as_vertex_formats() -> &'static [VertexFormat] {
&[VertexFormat::Float4]
}
}
impl AsVertexFormats for [f32; 2] {
fn as_vertex_formats() -> &'static [VertexFormat] {
&[VertexFormat::Float2]
}
}
impl AsVertexFormats for [f32; 3] {
fn as_vertex_formats() -> &'static [VertexFormat] {
&[VertexFormat::Float3]
}
}
impl AsVertexFormats for [f32; 4] {
fn as_vertex_formats() -> &'static [VertexFormat] {
&[VertexFormat::Float4]
}
}