From 251ff5ee495039b5f023cbba9191d4e8323da44c Mon Sep 17 00:00:00 2001
From: wheremyfoodat <44909372+wheremyfoodat@users.noreply.github.com>
Date: Thu, 25 Jul 2024 00:19:07 +0300
Subject: [PATCH] Add shader acceleration setting

---
 include/config.hpp    | 6 ++++--
 src/config.cpp        | 2 ++
 src/libretro_core.cpp | 6 +++++-
 3 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/include/config.hpp b/include/config.hpp
index 52be1af7..46d2fec8 100644
--- a/include/config.hpp
+++ b/include/config.hpp
@@ -20,11 +20,13 @@ struct EmulatorConfig {
 #else
 	static constexpr bool ubershaderDefault = true;
 #endif
-
+	static constexpr bool accelerateShadersDefault = false;
+	
 	bool shaderJitEnabled = shaderJitDefault;
-	bool discordRpcEnabled = false;
 	bool useUbershaders = ubershaderDefault;
+	bool accelerateShaders = accelerateShadersDefault;
 	bool accurateShaderMul = false;
+	bool discordRpcEnabled = false;
 
 	// Toggles whether to force shadergen when there's more than N lights active and we're using the ubershader, for better performance
 	bool forceShadergenForLights = true;
diff --git a/src/config.cpp b/src/config.cpp
index dae5a0ab..b774d064 100644
--- a/src/config.cpp
+++ b/src/config.cpp
@@ -64,6 +64,7 @@ void EmulatorConfig::load() {
 			vsyncEnabled = toml::find_or<toml::boolean>(gpu, "EnableVSync", true);
 			useUbershaders = toml::find_or<toml::boolean>(gpu, "UseUbershaders", ubershaderDefault);
 			accurateShaderMul = toml::find_or<toml::boolean>(gpu, "AccurateShaderMultiplication", false);
+			accelerateShaders = toml::find_or<toml::boolean>(gpu, "AccelerateShaders", accelerateShadersDefault);
 
 			forceShadergenForLights = toml::find_or<toml::boolean>(gpu, "ForceShadergenForLighting", true);
 			lightShadergenThreshold = toml::find_or<toml::integer>(gpu, "ShadergenLightThreshold", 1);
@@ -135,6 +136,7 @@ void EmulatorConfig::save() {
 	data["GPU"]["UseUbershaders"] = useUbershaders;
 	data["GPU"]["ForceShadergenForLighting"] = forceShadergenForLights;
 	data["GPU"]["ShadergenLightThreshold"] = lightShadergenThreshold;
+	data["GPU"]["AccelerateShaders"] = accelerateShaders;
 
 	data["Audio"]["DSPEmulation"] = std::string(Audio::DSPCore::typeToString(dspType));
 	data["Audio"]["EnableAudio"] = audioEnabled;
diff --git a/src/libretro_core.cpp b/src/libretro_core.cpp
index 3e0436b8..fa9f6d14 100644
--- a/src/libretro_core.cpp
+++ b/src/libretro_core.cpp
@@ -148,6 +148,8 @@ static bool FetchVariableBool(std::string key, bool def) {
 static void configInit() {
 	static const retro_variable values[] = {
 		{"panda3ds_use_shader_jit", "Enable shader JIT; enabled|disabled"},
+		{"panda3ds_accelerate_shaders",
+		 EmulatorConfig::accelerateShadersDefault ? "Run 3DS shaders on the GPU; enabled|disabled" : "Run 3DS shaders on the GPU; disabled|enabled"},
 		{"panda3ds_accurate_shader_mul", "Enable accurate shader multiplication; disabled|enabled"},
 		{"panda3ds_use_ubershader", EmulatorConfig::ubershaderDefault ? "Use ubershaders (No stutter, maybe slower); enabled|disabled"
 																	  : "Use ubershaders (No stutter, maybe slower); disabled|enabled"},
@@ -179,7 +181,9 @@ static void configUpdate() {
 	config.sdCardInserted = FetchVariableBool("panda3ds_use_virtual_sd", true);
 	config.sdWriteProtected = FetchVariableBool("panda3ds_write_protect_virtual_sd", false);
 	config.accurateShaderMul = FetchVariableBool("panda3ds_accurate_shader_mul", false);
-	config.useUbershaders = FetchVariableBool("panda3ds_use_ubershader", true);
+	config.useUbershaders = FetchVariableBool("panda3ds_use_ubershader", EmulatorConfig::ubershaderDefault);
+	config.accelerateShaders = FetchVariableBool("panda3ds_accelerate_shaders", EmulatorConfig::accelerateShadersDefault);
+
 	config.forceShadergenForLights = FetchVariableBool("panda3ds_ubershader_lighting_override", true);
 	config.lightShadergenThreshold = std::clamp(std::stoi(FetchVariable("panda3ds_ubershader_lighting_override_threshold", "1")), 1, 8);
 	config.discordRpcEnabled = false;