diff options
| author | JPikachu <jpikachu@noreply.localhost> | 2025-05-04 18:31:32 +0000 |
|---|---|---|
| committer | edendev <eden-dev@proton.me> | 2025-05-06 17:58:48 -0700 |
| commit | c8e2accf557a69d1ccd16f115bcdf19f04870c16 (patch) | |
| tree | f4a3865a15ab747abebbde432d6c781a40e95afe /src/video_core/rasterizer_accelerated.cpp | |
| parent | b01e20414fdb338fd3ccbb4e709ce38d33c944c2 (diff) | |
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 <jpikachu@noreply.localhost>
Co-committed-by: JPikachu <jpikachu@noreply.localhost>
Diffstat (limited to 'src/video_core/rasterizer_accelerated.cpp')
| -rw-r--r-- | src/video_core/rasterizer_accelerated.cpp | 72 |
1 files changed, 72 insertions, 0 deletions
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 <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
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