[shader_recompiler, vulkan] Virtual buffer pages with multi-range + sparse buffers binding (#4362)

Storage buffers can span GPU pages that aren't contiguous in host memory, but the buffer cache assumed one contiguous buffer per binding, so anything crossing a mapping boundary read the wrong bytes. Multi-range binding resolves the real segments and presents them to the shader as one buffer, aliasing their memory into a sparse VkBuffer or gathering them into a copy, all of this was mostly fixed by making a path to use sparse on buffers (the same way as texture cache has it) and retrieve properly the mapping ranges to the virtual pages, including the actual structure on the use of binding sparse.

Meanwhile this fixes Monster Hunter Sunbreak z-fighting, bad performance and mostly vertex explosions (coming from the contiguous buffer read from the shader's game) it's only the basis for a further investigation towards how are we gonna treat phi calculations, optimized them and mostly eradicate the currently excess of exposure on the textures where the lightning trace should not being reflected.

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4362
Reviewed-by: lizzie <lizzie@eden-emu.dev>
Reviewed-by: Maufeat <sahyno1996@gmail.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/src/video_core/vulkan_common/vulkan_device.h b/src/video_core/vulkan_common/vulkan_device.h
index c53bd6443e..077b1c3e23 100644
--- a/src/video_core/vulkan_common/vulkan_device.h
+++ b/src/video_core/vulkan_common/vulkan_device.h
@@ -317,6 +317,10 @@ public:
         return properties.driver.driverID;
     }
 
+    bool IsSparseBindingSupported() const {
+        return features.features.sparseBinding && graphics_family_sparse_binding;
+    }
+
     /// Returns true for tile-based deferred renderers.
     bool IsTiler() const {
         switch (GetDriverID()) {
@@ -1147,6 +1151,7 @@ private:
     u32 instance_version{};      ///< Vulkan instance version.
     u32 graphics_family{};       ///< Main graphics queue family index.
     u32 present_family{};        ///< Main present queue family index.
+    bool graphics_family_sparse_binding{};
 
     struct Extensions {
 #define EXTENSION(prefix, macro_name, var_name) bool var_name{};