From c8e2accf557a69d1ccd16f115bcdf19f04870c16 Mon Sep 17 00:00:00 2001 From: JPikachu Date: Sun, 4 May 2025 18:31:32 +0000 Subject: Add rasterizer_accelerated (#79) Credit: Antique - [Sudachi] Dev (https://sudachi.emuplace.app/) Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/79 Co-authored-by: JPikachu Co-committed-by: JPikachu --- src/video_core/rasterizer_accelerated.cpp | 72 +++++++++++++++++++++++++++++++ 1 file changed, 72 insertions(+) create mode 100644 src/video_core/rasterizer_accelerated.cpp (limited to 'src/video_core/rasterizer_accelerated.cpp') diff --git a/src/video_core/rasterizer_accelerated.cpp b/src/video_core/rasterizer_accelerated.cpp new file mode 100644 index 0000000000..9289cae64c --- /dev/null +++ b/src/video_core/rasterizer_accelerated.cpp @@ -0,0 +1,72 @@ +// SPDX-FileCopyrightText: Copyright 2019 yuzu Emulator Project +// SPDX-License-Identifier: GPL-2.0-or-later + +#include + +#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()), 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(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 -- cgit v1.2.3