revert 8390c7dff7

revert Add rasterizer_accelerated (#79)

Credit: Antique - [Sudachi] Dev (https://sudachi.emuplace.app/)

src/video_core/rasterizer_accelerated.cpp

@@ -1,72 +0,0 @@
-// SPDX-FileCopyrightText: Copyright 2019 yuzu Emulator Project
-// SPDX-License-Identifier: GPL-2.0-or-later
-
-#include <atomic>
-
-#include "common/assert.h"
-#include "common/common_types.h"
-#include "common/div_ceil.h"
-#include "core/memory.h"
-#include "video_core/rasterizer_accelerated.h"
-
-namespace VideoCore {
-
-using namespace Core::Memory;
-
-RasterizerAccelerated::RasterizerAccelerated(Memory& cpu_memory_)
-    : cached_pages(std::make_unique<CachedPages>()), cpu_memory{cpu_memory_} {}
-
-RasterizerAccelerated::~RasterizerAccelerated() = default;
-
-void RasterizerAccelerated::UpdatePagesCachedCount(VAddr addr, u64 size, int delta) {
-    u64 uncache_begin = 0;
-    u64 cache_begin = 0;
-    u64 uncache_bytes = 0;
-    u64 cache_bytes = 0;
-
-    std::atomic_thread_fence(std::memory_order_acquire);
-    const u64 page_end = Common::DivCeil(addr + size, YUZU_PAGESIZE);
-    for (u64 page = addr >> YUZU_PAGEBITS; page != page_end; ++page) {
-        std::atomic_uint16_t& count = cached_pages->at(page >> 2).Count(page);
-
-        if (delta > 0) {
-            ASSERT_MSG(count.load(std::memory_order::relaxed) < UINT16_MAX, "Count may overflow!");
-        } else if (delta < 0) {
-            ASSERT_MSG(count.load(std::memory_order::relaxed) > 0, "Count may underflow!");
-        } else {
-            ASSERT_MSG(false, "Delta must be non-zero!");
-        }
-
-        // Adds or subtracts 1, as count is a unsigned 8-bit value
-        count.fetch_add(static_cast<u16>(delta), std::memory_order_release);
-
-        // Assume delta is either -1 or 1
-        if (count.load(std::memory_order::relaxed) == 0) {
-            if (uncache_bytes == 0) {
-                uncache_begin = page;
-            }
-            uncache_bytes += YUZU_PAGESIZE;
-        } else if (uncache_bytes > 0) {
-            cpu_memory.RasterizerMarkRegionCached(uncache_begin << YUZU_PAGEBITS, uncache_bytes,
-                                                  false);
-            uncache_bytes = 0;
-        }
-        if (count.load(std::memory_order::relaxed) == 1 && delta > 0) {
-            if (cache_bytes == 0) {
-                cache_begin = page;
-            }
-            cache_bytes += YUZU_PAGESIZE;
-        } else if (cache_bytes > 0) {
-            cpu_memory.RasterizerMarkRegionCached(cache_begin << YUZU_PAGEBITS, cache_bytes, true);
-            cache_bytes = 0;
-        }
-    }
-    if (uncache_bytes > 0) {
-        cpu_memory.RasterizerMarkRegionCached(uncache_begin << YUZU_PAGEBITS, uncache_bytes, false);
-    }
-    if (cache_bytes > 0) {
-        cpu_memory.RasterizerMarkRegionCached(cache_begin << YUZU_PAGEBITS, cache_bytes, true);
-    }
-}
-
-} // namespace VideoCore

src/video_core/rasterizer_accelerated.h

@@ -1,49 +0,0 @@
-// SPDX-FileCopyrightText: Copyright 2019 yuzu Emulator Project
-// SPDX-License-Identifier: GPL-2.0-or-later
-
-#pragma once
-
-#include <array>
-#include <atomic>
-
-#include "common/common_types.h"
-#include "video_core/rasterizer_interface.h"
-
-namespace Core::Memory {
-class Memory;
-}
-
-namespace VideoCore {
-
-/// Implements the shared part in GPU accelerated rasterizers in RasterizerInterface.
-class RasterizerAccelerated : public RasterizerInterface {
-public:
-    explicit RasterizerAccelerated(Core::Memory::Memory& cpu_memory_);
-    ~RasterizerAccelerated() override;
-
-    void UpdatePagesCachedCount(VAddr addr, u64 size, int delta) override;
-
-private:
-    class CacheEntry final {
-    public:
-        CacheEntry() = default;
-
-        std::atomic_uint16_t& Count(std::size_t page) {
-            return values[page & 3];
-        }
-
-        const std::atomic_uint16_t& Count(std::size_t page) const {
-            return values[page & 3];
-        }
-
-    private:
-        std::array<std::atomic_uint16_t, 4> values{};
-    };
-    static_assert(sizeof(CacheEntry) == 8, "CacheEntry should be 8 bytes!");
-
-    using CachedPages = std::array<CacheEntry, 0x2000000>;
-    std::unique_ptr<CachedPages> cached_pages;
-    Core::Memory::Memory& cpu_memory;
-};
-
-} // namespace VideoCore