Fix Disk shader cache when accurate multiplication is off (#5711)

* renderer_opengl.cpp: fix sanitize_mul check for disk shader cache

* Partially revert "Band-aid solution for 'Disk Shader Cache' (#5188)"

This reverts commit 2e0ce86c9e.

* Disable `disk_shader_cache` checkbox when `hw_renderer` is off

src/citra_qt/configuration/configure_graphics.cpp

@@ -23,25 +23,19 @@ ConfigureGraphics::ConfigureGraphics(QWidget* parent)
     connect(ui->toggle_hw_renderer, &QCheckBox::toggled, this, [this] {
         auto checked = ui->toggle_hw_renderer->isChecked();
         ui->hw_renderer_group->setEnabled(checked);
+        ui->toggle_disk_shader_cache->setEnabled(checked && ui->toggle_hw_shader->isChecked());
     });
 
     ui->hw_shader_group->setEnabled(ui->toggle_hw_shader->isChecked());
-    connect(ui->toggle_hw_shader, &QCheckBox::toggled, ui->hw_shader_group, &QWidget::setEnabled);
+    ui->toggle_disk_shader_cache->setEnabled(ui->toggle_hw_renderer->isChecked() &&
+                                             ui->toggle_hw_shader->isChecked());
 
-    ui->toggle_disk_shader_cache->setEnabled(ui->toggle_hw_shader->isChecked() &&
-                                             ui->toggle_accurate_mul->isChecked());
     connect(ui->toggle_hw_shader, &QCheckBox::toggled, this, [this] {
-        ui->toggle_disk_shader_cache->setEnabled(ui->toggle_hw_shader->isChecked() &&
-                                                 ui->toggle_accurate_mul->isChecked());
-        if (!ui->toggle_disk_shader_cache->isEnabled())
-            ui->toggle_disk_shader_cache->setChecked(false);
+        auto checked = ui->toggle_hw_shader->isChecked();
+        ui->hw_shader_group->setEnabled(checked);
+        ui->toggle_disk_shader_cache->setEnabled(checked);
     });
 
-    connect(ui->toggle_accurate_mul, &QCheckBox::toggled, this, [this] {
-        ui->toggle_disk_shader_cache->setEnabled(ui->toggle_accurate_mul->isChecked());
-        if (!ui->toggle_disk_shader_cache->isEnabled())
-            ui->toggle_disk_shader_cache->setChecked(false);
-    });
 #ifdef __APPLE__
     connect(ui->toggle_hw_shader, &QCheckBox::stateChanged, this, [this](int state) {
         if (state == Qt::Checked) {

src/citra_qt/configuration/configure_graphics.ui

@@ -121,7 +121,7 @@
        <item>
          <widget class="QCheckBox" name="toggle_disk_shader_cache">
            <property name="toolTip">
-             <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Reduce stuttering by storing and loading generated shaders to disk.&lt;/p&gt;&lt;p&gt;It cannot be used without Enable Hardware Shader or Accurate Multiplication.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+             <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Reduce stuttering by storing and loading generated shaders to disk.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
            </property>
            <property name="text">
              <string>Use Disk Shader Cache</string>

src/video_core/renderer_opengl/gl_shader_disk_cache.cpp

@@ -106,8 +106,8 @@ ShaderDiskCache::ShaderDiskCache(bool separable) : separable{separable} {}
 
 std::optional<std::vector<ShaderDiskCacheRaw>> ShaderDiskCache::LoadTransferable() {
     const bool has_title_id = GetProgramID() != 0;
-    if (!Settings::values.use_hw_shader || !Settings::values.shaders_accurate_mul ||
-        !Settings::values.use_disk_shader_cache || !has_title_id) {
+    if (!Settings::values.use_hw_shader || !Settings::values.use_disk_shader_cache ||
+        !has_title_id) {
         return std::nullopt;
     }
     tried_to_load = true;

src/video_core/renderer_opengl/gl_shader_manager.cpp

@@ -496,7 +496,8 @@ void ShaderProgramManager::LoadDiskCache(const std::atomic_bool& stop_loading,
 
                 if (dump != dump_map.end() && decomp != decompiled_map.end()) {
                     // Only load this shader if its sanitize_mul setting matches
-                    if (decomp->second.sanitize_mul == VideoCore::g_hw_shader_accurate_mul) {
+                    if (raw.GetProgramType() == ProgramType::VS &&
+                        decomp->second.sanitize_mul != VideoCore::g_hw_shader_accurate_mul) {
                         continue;
                     }
 
@@ -617,6 +618,6 @@ void ShaderProgramManager::LoadDiskCache(const std::atomic_bool& stop_loading,
     if (precompiled_cache_altered) {
         disk_cache.SaveVirtualPrecompiledFile();
     }
-} // namespace OpenGL
+}
 
 } // namespace OpenGL