migrations/egui
1
0
Fork 0
mirror of https://github.com/emilk/egui.git synced 2026-08-31 13:50:04 -04:00
Code Activity

Fix bugs in glow on web (#1092)

Browse Source 
* Re-add check of WEBGL_debug_renderer_info to avoid OpenGL error

I removed this check in https://github.com/emilk/egui/pull/1020
because it produced a warning on Firefox. Better a warning
than an OpenGL error though.

* Bug fix: don't ask for webgl context and then later for webgl2 context

The browser will only allow the first thing we check, so this will
prevent webgl2 from working.
This commit is contained in:
Emil Ernerfeldt
2022-01-10 23:19:30 +01:00
committed by GitHub
parent d5673412dd
commit 205e04aa18
8 changed files with 83 additions and 81 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
egui_glow/src/painter.rs
View File

@@ -99,16 +99,16 @@ impl Painter {
let shader_version = ShaderVersion::get(gl);
let is_webgl_1 = shader_version == ShaderVersion::Es100;
let header = shader_version.version();
glow_print(format!("Shader header: {:?}", header));
glow_print(format!("Shader header: {:?}.", header));
let srgb_support = gl.supported_extensions().contains("EXT_sRGB");
let (post_process, srgb_support_define) = match (shader_version, srgb_support) {
//WebGL2 support sRGB default
// WebGL2 support sRGB default
(ShaderVersion::Es300, _) | (ShaderVersion::Es100, true) => unsafe {
//Add sRGB support marker for fragment shader
// Add sRGB support marker for fragment shader
if let Some([width, height]) = pp_fb_extent {
glow_print("WebGL with sRGB enabled so turn on post process");
//install post process to correct sRGB color
glow_print("WebGL with sRGB enabled. Turning on post processing for linear framebuffer blending.");
// install post process to correct sRGB color:
(
Some(PostProcess::new(
gl,
@@ -125,9 +125,11 @@ impl Painter {
(None, "")
}
},
//WebGL1 without sRGB support disable postprocess and use fallback shader
// WebGL1 without sRGB support disable postprocess and use fallback shader
(ShaderVersion::Es100, false) => (None, ""),
//OpenGL 2.1 or above always support sRGB so add sRGB support marker
// OpenGL 2.1 or above always support sRGB so add sRGB support marker
_ => (None, "#define SRGB_SUPPORTED"),
};