From 6c3ebed76e7def7b853e21fbf93f6eeb176696f9 Mon Sep 17 00:00:00 2001
From: UjinT34 <41110182+UjinT34@users.noreply.github.com>
Date: Wed, 21 Jan 2026 18:54:14 +0300
Subject: renderer: add surface shader variants with less branching and
 uniforms (#13030)

* shader variant features

* getSurfaceShader variant with feats

* split surface shaders by features

* cleanup old shaders
---
 src/render/OpenGL.hpp | 23 +++++++++++++++++------
 1 file changed, 17 insertions(+), 6 deletions(-)

(limited to 'src/render/OpenGL.hpp')

diff --git a/src/render/OpenGL.hpp b/src/render/OpenGL.hpp
index 4189e32b..a538aa4b 100644
--- a/src/render/OpenGL.hpp
+++ b/src/render/OpenGL.hpp
@@ -89,10 +89,8 @@ enum eMonitorExtraRenderFBs : uint8_t {
 
 enum ePreparedFragmentShader : uint8_t {
     SH_FRAG_QUAD = 0,
-    SH_FRAG_RGBA,
     SH_FRAG_PASSTHRURGBA,
     SH_FRAG_MATTE,
-    SH_FRAG_RGBX,
     SH_FRAG_EXT,
     SH_FRAG_BLUR1,
     SH_FRAG_BLUR2,
@@ -103,14 +101,24 @@ enum ePreparedFragmentShader : uint8_t {
     SH_FRAG_CM_BORDER1,
     SH_FRAG_BORDER1,
     SH_FRAG_GLITCH,
-    SH_FRAG_CM_RGBA,
-    SH_FRAG_CM_RGBA_DISCARD,
-    SH_FRAG_CM_RGBX,
-    SH_FRAG_CM_RGBX_DISCARD,
 
     SH_FRAG_LAST,
 };
 
+enum ePreparedFragmentShaderFeature : uint8_t {
+    SH_FEAT_UNKNOWN = 0, // all features just in case
+
+    SH_FEAT_RGBA     = (1 << 0), // RGBA/RGBX texture sampling
+    SH_FEAT_DISCARD  = (1 << 1), // RGBA/RGBX texture sampling
+    SH_FEAT_TINT     = (1 << 2), // uniforms: tint; condition: applyTint
+    SH_FEAT_ROUNDING = (1 << 3), // uniforms: radius, roundingPower, topLeft, fullSize; condition: radius > 0
+    SH_FEAT_CM       = (1 << 4), // uniforms: srcTFRange, dstTFRange, srcRefLuminance, convertMatrix; condition: !skipCM
+    SH_FEAT_TONEMAP  = (1 << 5), // uniforms: maxLuminance, dstMaxLuminance, dstRefLuminance; condition: maxLuminance < dstMaxLuminance * 1.01
+    SH_FEAT_SDR_MOD  = (1 << 6), // uniforms: sdrSaturation, sdrBrightnessMultiplier; condition: SDR <-> HDR && (sdrSaturation != 1 || sdrBrightnessMultiplier != 1)
+
+    // uniforms: targetPrimariesXYZ; condition: SH_FEAT_TONEMAP || SH_FEAT_SDR_MOD
+};
+
 struct SFragShaderDesc {
     ePreparedFragmentShader id;
     const char*             file;
@@ -126,6 +134,7 @@ struct SPreparedShaders {
     std::string                           TEXVERTSRC;
     std::string                           TEXVERTSRC320;
     std::array<SP<CShader>, SH_FRAG_LAST> frag;
+    std::map<uint8_t, SP<CShader>>        fragVariants;
 };
 
 struct SMonitorRenderData {
@@ -307,9 +316,11 @@ class CHyprOpenGLImpl {
     void                                              ensureLockTexturesRendered(bool load);
 
     bool                                              explicitSyncSupported();
+    WP<CShader>                                       getSurfaceShader(uint8_t features);
 
     bool                                              m_shadersInitialized = false;
     SP<SPreparedShaders>                              m_shaders;
+    std::map<std::string, std::string>                m_includes;
 
     SCurrentRenderData                                m_renderData;
 
-- 
cgit v1.2.3