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gl: get version at runtime

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This commit is contained in:
chyyran 2022-11-24 20:00:55 -05:00
parent cb8af115c7
commit e64b2f3300
2 changed files with 34 additions and 2 deletions
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4
librashader-runtime-gl/src/filter_chain.rs
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@ -4,7 +4,7 @@ use crate::framebuffer::{Framebuffer, GlImage, Viewport};
use crate::quad_render::DrawQuad;
use crate::render_target::RenderTarget;
use crate::util;
use crate::util::{InlineRingBuffer, Texture};
use crate::util::{gl_get_version, InlineRingBuffer, Texture};
use crate::error::{FilterChainError, Result};
use gl::types::{GLenum, GLint, GLsizei, GLsizeiptr, GLuint};
@ -368,7 +368,7 @@ impl FilterChain {
// initialize passes
for (index, (config, source, mut reflect)) in passes.into_iter().enumerate() {
let reflection = reflect.reflect(index, semantics)?;
let glsl = reflect.compile(GlVersion::V4_60)?;
let glsl = reflect.compile(gl_get_version())?;
let vertex_resources = glsl.context.compiler.vertex.get_shader_resources()?;

32
librashader-runtime-gl/src/util.rs
View file

@ -1,6 +1,7 @@
use crate::framebuffer::GlImage;
use gl::types::{GLenum, GLuint};
use librashader_common::{FilterMode, Size, WrapMode};
use librashader_reflect::back::cross::GlVersion;
pub fn calc_miplevel(size: Size<u32>) -> u32 {
let mut size = std::cmp::max(size.width, size.height);
@ -87,3 +88,34 @@ pub unsafe fn gl_compile_shader(stage: GLenum, source: &str) -> GLuint {
}
shader
}
pub fn gl_get_version() -> GlVersion {
let mut maj_ver = 0;
let mut min_ver = 0;
unsafe {
gl::GetIntegerv(gl::MAJOR_VERSION, &mut maj_ver);
gl::GetIntegerv(gl::MINOR_VERSION, &mut min_ver);
}
match maj_ver {
3 => match min_ver {
3 => GlVersion::V3_30,
2 => GlVersion::V1_50,
1 => GlVersion::V1_40,
0 => GlVersion::V1_30,
_ => GlVersion::V1_50,
}
4 => match min_ver {
6 => GlVersion::V4_60,
5 => GlVersion::V4_50,
4 => GlVersion::V4_40,
3 => GlVersion::V4_30,
2 => GlVersion::V4_20,
1 => GlVersion::V4_10,
0 => GlVersion::V4_00,
_ => GlVersion::V1_50
}
_ => GlVersion::V1_50
}
}