63 lines
1.1 KiB
Rust
63 lines
1.1 KiB
Rust
// Trivial wrappers around GLESv2 C functions that should be safe
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use glam::{Mat4, Vec3, Vec4};
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pub fn clear_color (r: f32, g: f32, b: f32, a: f32) {
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unsafe {
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gl::ClearColor (1.0f32, 1.0f32, 1.0f32, 1.0f32);
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}
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}
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pub fn clear (flags: u32) {
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unsafe {
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gl::Clear (flags);
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}
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}
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pub fn disable (constant: u32) {
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unsafe {
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gl::Disable (constant);
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}
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}
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pub fn enable (constant: u32) {
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unsafe {
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gl::Enable (constant);
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}
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}
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pub fn enable_vertex_attrib_array (id: Option <u32>) {
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if let Some (id) = id {
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// Are safety checks really needed here?
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unsafe {
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gl::EnableVertexAttribArray (id);
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}
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}
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}
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pub fn uniform_1i (uni: i32, x: i32) {
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unsafe {
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gl::Uniform1i (uni, x);
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}
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}
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pub fn uniform_3fv (uni: i32, v: &Vec3) {
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unsafe {
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gl::Uniform3fv (uni, 1, v as *const Vec3 as *const f32);
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}
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}
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pub fn uniform_4fv (uni: i32, v: &Vec4) {
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unsafe {
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gl::Uniform4fv (uni, 1, v as *const Vec4 as *const f32);
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}
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}
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pub fn uniform_matrix_4fv (uni: i32, m: &Mat4) {
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const FALSE_U8: u8 = 0;
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unsafe {
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gl::UniformMatrix4fv (uni, 1, FALSE_U8, m as *const Mat4 as *const f32);
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}
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}
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