49 lines
1.3 KiB
Rust
49 lines
1.3 KiB
Rust
use crate::{
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agnostic_interface::raylib_impl::RaylibShader,
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faux_quicksilver::{Transform, Vector},
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};
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use std::ffi::CStr;
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extern "C" {
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pub fn glVertexAttrib2f(index: ::std::os::raw::c_uint, x: f32, y: f32);
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}
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extern "C" {
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pub fn glVertexAttrib3f(index: ::std::os::raw::c_uint, x: f32, y: f32, z: f32);
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}
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#[allow(dead_code)]
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extern "C" {
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pub fn glVertexAttrib4f(index: ::std::os::raw::c_uint, x: f32, y: f32, z: f32, w: f32);
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}
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extern "C" {
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pub fn glGetAttribLocation(
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program: ::std::os::raw::c_uint,
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name: *const ::std::os::raw::c_char,
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) -> ::std::os::raw::c_int;
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}
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pub fn get_attrib_location(raylib_shader: &RaylibShader, name: &CStr) -> ::std::os::raw::c_uint {
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unsafe {
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glGetAttribLocation(raylib_shader.get_shader_id(), name.as_ptr()) as ::std::os::raw::c_uint
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}
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}
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pub fn set_transform_3f(index: ::std::os::raw::c_uint, transform: Transform) {
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// OpenGL stores matrix indices in column major order.
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for (i, idx) in (index..(index + 3)).enumerate() {
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unsafe {
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glVertexAttrib3f(
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idx,
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transform.mat[i],
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transform.mat[3 + i],
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transform.mat[6 + i],
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);
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}
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}
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}
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pub fn set_attr_2f(index: ::std::os::raw::c_uint, origin: Vector) {
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unsafe {
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glVertexAttrib2f(index, origin.x, origin.y);
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}
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}
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