From 7587cadd0a4e94c9ba42c00307854052798cf9b2 Mon Sep 17 00:00:00 2001
From: Vaxry <vaxry@vaxry.net>
Date: Mon, 18 Mar 2024 04:15:04 +0000
Subject: [PATCH] renderer: add support for gles3.2 screen shaders

---
 src/render/OpenGL.cpp           |  2 +-
 src/render/shaders/Textures.hpp | 11 +++++++++++
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/src/render/OpenGL.cpp b/src/render/OpenGL.cpp
index 30803885..f79a10d1 100644
--- a/src/render/OpenGL.cpp
+++ b/src/render/OpenGL.cpp
@@ -547,7 +547,7 @@ void CHyprOpenGLImpl::applyScreenShader(const std::string& path) {
 
     std::string fragmentShader((std::istreambuf_iterator<char>(infile)), (std::istreambuf_iterator<char>()));
 
-    m_sFinalScreenShader.program = createProgram(TEXVERTSRC, fragmentShader, true);
+    m_sFinalScreenShader.program = createProgram(fragmentShader.starts_with("#version 320 es") ? TEXVERTSRC320 : TEXVERTSRC, fragmentShader, true);
 
     if (!m_sFinalScreenShader.program) {
         g_pConfigManager->addParseError("Screen shader parser: Screen shader parse failed");
diff --git a/src/render/shaders/Textures.hpp b/src/render/shaders/Textures.hpp
index 5e346c1e..59c7304f 100644
--- a/src/render/shaders/Textures.hpp
+++ b/src/render/shaders/Textures.hpp
@@ -80,6 +80,17 @@ void main() {
     v_texcoord = texcoord;
 })#";
 
+inline const std::string TEXVERTSRC320 = R"#(#version 320 es
+uniform mat3 proj;
+in vec2 pos;
+in vec2 texcoord;
+out vec2 v_texcoord;
+
+void main() {
+    gl_Position = vec4(proj * vec3(pos, 1.0), 1.0);
+    v_texcoord = texcoord;
+})#";
+
 inline const std::string TEXFRAGSRCRGBA = R"#(
 precision highp float;
 varying vec2 v_texcoord; // is in 0-1