28fb0fdfc8
Must follow VertexBufferDescriptorName_AttributeName format I_VertexBufferDescriptorName_AttributeName indicates that an attribute is instanced Currently all attributes must be defined in shaders or offsets will be incorrect.
93 lines
2.4 KiB
Rust
93 lines
2.4 KiB
Rust
#[derive(Clone, Debug, Eq, PartialEq)]
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pub struct VertexBufferDescriptor {
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pub name: String,
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pub stride: u64,
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pub step_mode: InputStepMode,
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pub attributes: Vec<VertexAttributeDescriptor>,
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}
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#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq)]
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pub enum VertexFormat {
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Uchar2 = 1,
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Uchar4 = 3,
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Char2 = 5,
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Char4 = 7,
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Uchar2Norm = 9,
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Uchar4Norm = 11,
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Char2Norm = 14,
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Char4Norm = 16,
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Ushort2 = 18,
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Ushort4 = 20,
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Short2 = 22,
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Short4 = 24,
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Ushort2Norm = 26,
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Ushort4Norm = 28,
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Short2Norm = 30,
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Short4Norm = 32,
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Half2 = 34,
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Half4 = 36,
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Float = 37,
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Float2 = 38,
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Float3 = 39,
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Float4 = 40,
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Uint = 41,
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Uint2 = 42,
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Uint3 = 43,
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Uint4 = 44,
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Int = 45,
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Int2 = 46,
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Int3 = 47,
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Int4 = 48,
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}
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impl VertexFormat {
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pub fn get_size(&self) -> u64 {
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match *self {
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VertexFormat::Uchar2 => 2,
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VertexFormat::Uchar4 => 4,
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VertexFormat::Char2 => 2,
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VertexFormat::Char4 => 4,
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VertexFormat::Uchar2Norm => 2,
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VertexFormat::Uchar4Norm => 4,
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VertexFormat::Char2Norm => 2,
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VertexFormat::Char4Norm => 4,
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VertexFormat::Ushort2 => 2 * 2,
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VertexFormat::Ushort4 => 2 * 4,
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VertexFormat::Short2 => 2 * 2,
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VertexFormat::Short4 => 2 * 4,
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VertexFormat::Ushort2Norm => 2 * 2,
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VertexFormat::Ushort4Norm => 2 * 4,
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VertexFormat::Short2Norm => 2 * 2,
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VertexFormat::Short4Norm => 2 * 4,
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VertexFormat::Half2 => 2 * 2,
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VertexFormat::Half4 => 2 * 4,
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VertexFormat::Float => 4,
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VertexFormat::Float2 => 4 * 2,
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VertexFormat::Float3 => 4 * 3,
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VertexFormat::Float4 => 4 * 4,
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VertexFormat::Uint => 4,
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VertexFormat::Uint2 => 4 * 2,
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VertexFormat::Uint3 => 4 * 3,
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VertexFormat::Uint4 => 4 * 4,
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VertexFormat::Int => 4,
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VertexFormat::Int2 => 4 * 2,
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VertexFormat::Int3 => 4 * 3,
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VertexFormat::Int4 => 4 * 4,
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}
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}
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}
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#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq)]
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pub enum InputStepMode {
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Vertex = 0,
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Instance = 1,
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}
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#[derive(Clone, Debug, Hash, Eq, PartialEq)]
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pub struct VertexAttributeDescriptor {
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pub name: String,
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pub offset: u64,
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pub format: VertexFormat,
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pub shader_location: u32,
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}
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