From c5047540c9c3f807ed2164b938898ffff27f53bc Mon Sep 17 00:00:00 2001
From: ReinUsesLisp <reinuseslisp@airmail.cc>
Date: Tue, 2 Apr 2019 15:54:11 -0300
Subject: video_core: Abstract vk_sampler_cache into a templated class

---
 .../renderer_vulkan/vk_sampler_cache.cpp           | 40 +++++++---------------
 1 file changed, 12 insertions(+), 28 deletions(-)

(limited to 'src/video_core/renderer_vulkan/vk_sampler_cache.cpp')

diff --git a/src/video_core/renderer_vulkan/vk_sampler_cache.cpp b/src/video_core/renderer_vulkan/vk_sampler_cache.cpp
index ed3178f09..801826d3d 100644
--- a/src/video_core/renderer_vulkan/vk_sampler_cache.cpp
+++ b/src/video_core/renderer_vulkan/vk_sampler_cache.cpp
@@ -7,7 +7,6 @@
 #include <unordered_map>
 
 #include "common/assert.h"
-#include "common/cityhash.h"
 #include "video_core/renderer_vulkan/declarations.h"
 #include "video_core/renderer_vulkan/maxwell_to_vk.h"
 #include "video_core/renderer_vulkan/vk_sampler_cache.h"
@@ -28,39 +27,20 @@ static std::optional<vk::BorderColor> TryConvertBorderColor(std::array<float, 4>
     }
 }
 
-std::size_t SamplerCacheKey::Hash() const {
-    static_assert(sizeof(raw) % sizeof(u64) == 0);
-    return static_cast<std::size_t>(
-        Common::CityHash64(reinterpret_cast<const char*>(raw.data()), sizeof(raw) / sizeof(u64)));
-}
-
-bool SamplerCacheKey::operator==(const SamplerCacheKey& rhs) const {
-    return raw == rhs.raw;
-}
-
 VKSamplerCache::VKSamplerCache(const VKDevice& device) : device{device} {}
 
 VKSamplerCache::~VKSamplerCache() = default;
 
-vk::Sampler VKSamplerCache::GetSampler(const Tegra::Texture::TSCEntry& tsc) {
-    const auto [entry, is_cache_miss] = cache.try_emplace(SamplerCacheKey{tsc});
-    auto& sampler = entry->second;
-    if (is_cache_miss) {
-        sampler = CreateSampler(tsc);
-    }
-    return *sampler;
-}
-
-UniqueSampler VKSamplerCache::CreateSampler(const Tegra::Texture::TSCEntry& tsc) {
-    const float max_anisotropy = tsc.GetMaxAnisotropy();
-    const bool has_anisotropy = max_anisotropy > 1.0f;
+UniqueSampler VKSamplerCache::CreateSampler(const Tegra::Texture::TSCEntry& tsc) const {
+    const float max_anisotropy{tsc.GetMaxAnisotropy()};
+    const bool has_anisotropy{max_anisotropy > 1.0f};
 
-    const auto border_color = tsc.GetBorderColor();
-    const auto vk_border_color = TryConvertBorderColor(border_color);
+    const auto border_color{tsc.GetBorderColor()};
+    const auto vk_border_color{TryConvertBorderColor(border_color)};
     UNIMPLEMENTED_IF_MSG(!vk_border_color, "Unimplemented border color {} {} {} {}",
                          border_color[0], border_color[1], border_color[2], border_color[3]);
 
-    constexpr bool unnormalized_coords = false;
+    constexpr bool unnormalized_coords{false};
 
     const vk::SamplerCreateInfo sampler_ci(
         {}, MaxwellToVK::Sampler::Filter(tsc.mag_filter),
@@ -73,9 +53,13 @@ UniqueSampler VKSamplerCache::CreateSampler(const Tegra::Texture::TSCEntry& tsc)
         tsc.GetMaxLod(), vk_border_color.value_or(vk::BorderColor::eFloatTransparentBlack),
         unnormalized_coords);
 
-    const auto& dld = device.GetDispatchLoader();
-    const auto dev = device.GetLogical();
+    const auto& dld{device.GetDispatchLoader()};
+    const auto dev{device.GetLogical()};
     return dev.createSamplerUnique(sampler_ci, nullptr, dld);
 }
 
+vk::Sampler VKSamplerCache::ToSamplerType(const UniqueSampler& sampler) const {
+    return *sampler;
+}
+
 } // namespace Vulkan
-- 
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