From 30fcdc54743de640f0250d8528839e2714cd58f9 Mon Sep 17 00:00:00 2001
From: GPUCode <47210458+GPUCode@users.noreply.github.com>
Date: Fri, 15 Sep 2023 00:21:12 +0300
Subject: [PATCH] renderer_vulkan: Misc fixes (#6974)

* vk_platform: Check if library was loaded

* pica_to_vk: Dont crash on unknow blend equation
---
 src/common/dynamic_library/dynamic_library.h   | 2 +-
 src/video_core/renderer_vulkan/pica_to_vk.h    | 7 ++++++-
 src/video_core/renderer_vulkan/vk_platform.cpp | 4 ++++
 3 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/src/common/dynamic_library/dynamic_library.h b/src/common/dynamic_library/dynamic_library.h
index 9a0c2083fb..143b85f1dc 100644
--- a/src/common/dynamic_library/dynamic_library.h
+++ b/src/common/dynamic_library/dynamic_library.h
@@ -16,7 +16,7 @@ public:
     ~DynamicLibrary();
 
     /// Returns true if the library is loaded, otherwise false.
-    [[nodiscard]] bool IsLoaded() {
+    [[nodiscard]] bool IsLoaded() const noexcept {
         return handle != nullptr;
     }
 
diff --git a/src/video_core/renderer_vulkan/pica_to_vk.h b/src/video_core/renderer_vulkan/pica_to_vk.h
index 96776ce707..c591df08ee 100644
--- a/src/video_core/renderer_vulkan/pica_to_vk.h
+++ b/src/video_core/renderer_vulkan/pica_to_vk.h
@@ -77,7 +77,12 @@ inline vk::BlendOp BlendEquation(Pica::FramebufferRegs::BlendEquation equation)
     }};
 
     const auto index = static_cast<std::size_t>(equation);
-    ASSERT_MSG(index < blend_equation_table.size(), "Unknown blend equation {}", index);
+    if (index >= blend_equation_table.size()) {
+        LOG_CRITICAL(Render_Vulkan, "Unknown blend equation {}", index);
+
+        // This return value is hwtested, not just a stub
+        return vk::BlendOp::eAdd;
+    }
     return blend_equation_table[index];
 }
 
diff --git a/src/video_core/renderer_vulkan/vk_platform.cpp b/src/video_core/renderer_vulkan/vk_platform.cpp
index 7b4c6e230d..46390889ad 100644
--- a/src/video_core/renderer_vulkan/vk_platform.cpp
+++ b/src/video_core/renderer_vulkan/vk_platform.cpp
@@ -277,6 +277,10 @@ vk::InstanceCreateFlags GetInstanceFlags() {
 vk::UniqueInstance CreateInstance(const Common::DynamicLibrary& library,
                                   Frontend::WindowSystemType window_type, bool enable_validation,
                                   bool dump_command_buffers) {
+    if (!library.IsLoaded()) {
+        throw std::runtime_error("Failed to load Vulkan driver library");
+    }
+
     const auto vkGetInstanceProcAddr =
         library.GetSymbol<PFN_vkGetInstanceProcAddr>("vkGetInstanceProcAddr");
     if (!vkGetInstanceProcAddr) {