From e1edfde539557d175f8c48d94996469426da7c47 Mon Sep 17 00:00:00 2001
From: end-4 <97237370+end-4@users.noreply.github.com>
Date: Mon, 12 Jun 2023 00:30:31 +0700
Subject: Allow setting alpha value for ignorezero layer rule (#2477)

* rename ignorezero to ignorealpha

* allow setting ignorealpha value

This commit allows setting a float value (0-1) for the ignorealpha layer rule.
Does not yet have error handling; invalid ignorealpha layer rule will crash Hyprland.

* add brackets i forgot to add

* prevent crash with invalid ignorealpha value

prevents hyprland from immediately crashing with invalid ignorealpha layer rule
does not log

* don't try to set ignoreAlphaValue if alpha value not specified

* add catch to try, reintroduce ignorezero

- added catch after try cuz i was an idiot
- re-add ignorezero as an alternative to ignorealpha to not introduce a breaking change

* add logging for failed ignorealpha layer rule

* fix get ignorealpha's get VALUE

* check npos and use empty()

* rename VALUE cuz no longer const

* format Shader.hpp
---
 src/render/shaders/Textures.hpp | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

(limited to 'src/render/shaders')

diff --git a/src/render/shaders/Textures.hpp b/src/render/shaders/Textures.hpp
index 45068839..e571d662 100644
--- a/src/render/shaders/Textures.hpp
+++ b/src/render/shaders/Textures.hpp
@@ -96,7 +96,8 @@ uniform vec2 fullSize;
 uniform float radius;
 
 uniform int discardOpaque;
-uniform int discardAlphaZero;
+uniform int discardAlpha;
+uniform float discardAlphaValue;
 
 uniform int applyTint;
 uniform vec3 tint;
@@ -110,7 +111,7 @@ void main() {
     if (discardOpaque == 1 && pixColor[3] * alpha == 1.0)
 	    discard;
     
-    if (discardAlphaZero == 1 && pixColor[3] == 0.0)
+    if (discardAlpha == 1 && pixColor[3] <= discardAlphaValue)
         discard;
 
     if (applyTint == 1) {
@@ -145,7 +146,8 @@ uniform vec2 fullSize;
 uniform float radius;
 
 uniform int discardOpaque;
-uniform int discardAlphaZero;
+uniform int discardAlpha;
+uniform int discardAlphaValue;
 
 uniform int applyTint;
 uniform vec3 tint;
@@ -232,7 +234,8 @@ uniform vec2 fullSize;
 uniform float radius;
 
 uniform int discardOpaque;
-uniform int discardAlphaZero;
+uniform int discardAlpha;
+uniform int discardAlphaValue;
 
 uniform int applyTint;
 uniform vec3 tint;
-- 
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