gl_buffer_cache: Rework to support internalized buffers
This commit is contained in:
ReinUsesLisp
parent
f8ba72d491
commit
8155b12d3d
@ -7,90 +7,165 @@
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#include <utility>
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#include "common/alignment.h"
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#include "common/assert.h"
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#include "core/core.h"
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#include "video_core/memory_manager.h"
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#include "video_core/renderer_opengl/gl_buffer_cache.h"
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#include "video_core/renderer_opengl/gl_rasterizer.h"
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#include "video_core/renderer_opengl/gl_resource_manager.h"
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namespace OpenGL {
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CachedBufferEntry::CachedBufferEntry(VAddr cpu_addr, u8* host_ptr, std::size_t size,
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std::size_t alignment, GLuint buffer, GLintptr offset)
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: RasterizerCacheObject{host_ptr}, cpu_addr{cpu_addr}, size{size}, alignment{alignment},
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buffer{buffer}, offset{offset} {}
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namespace {
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constexpr GLuint EmptyBuffer = 0;
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constexpr GLintptr CachedBufferOffset = 0;
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OGLBuffer CreateBuffer(std::size_t size, GLenum usage) {
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OGLBuffer buffer;
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buffer.Create();
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glNamedBufferData(buffer.handle, size, nullptr, usage);
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return buffer;
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}
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} // Anonymous namespace
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CachedBufferEntry::CachedBufferEntry(VAddr cpu_addr, u8* host_ptr)
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: RasterizerCacheObject{host_ptr}, cpu_addr{cpu_addr} {}
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OGLBufferCache::OGLBufferCache(RasterizerOpenGL& rasterizer, std::size_t size)
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: RasterizerCache{rasterizer}, stream_buffer(size, true) {}
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std::pair<GLuint, GLintptr> OGLBufferCache::UploadMemory(GPUVAddr gpu_addr, std::size_t size,
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std::size_t alignment, bool cache) {
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OGLBufferCache::~OGLBufferCache() = default;
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void OGLBufferCache::Unregister(const std::shared_ptr<CachedBufferEntry>& entry) {
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std::lock_guard lock{mutex};
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if (entry->IsInternalized()) {
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internalized_entries.erase(entry->GetCacheAddr());
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}
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ReserveBuffer(entry);
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RasterizerCache<std::shared_ptr<CachedBufferEntry>>::Unregister(entry);
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}
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OGLBufferCache::BufferInfo OGLBufferCache::UploadMemory(GPUVAddr gpu_addr, std::size_t size,
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std::size_t alignment, bool internalize) {
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std::lock_guard lock{mutex};
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auto& memory_manager = Core::System::GetInstance().GPU().MemoryManager();
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const auto& host_ptr{memory_manager.GetPointer(gpu_addr)};
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const auto host_ptr{memory_manager.GetPointer(gpu_addr)};
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const auto cache_addr{ToCacheAddr(host_ptr)};
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if (!host_ptr) {
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// Return a dummy buffer when host_ptr is invalid.
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return {0, 0};
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return {EmptyBuffer, 0};
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}
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// Cache management is a big overhead, so only cache entries with a given size.
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// TODO: Figure out which size is the best for given games.
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cache &= size >= 2048;
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if (cache) {
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if (auto entry = TryGet(host_ptr); entry) {
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if (entry->GetSize() >= size && entry->GetAlignment() == alignment) {
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return {entry->GetBuffer(), entry->GetOffset()};
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}
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Unregister(entry);
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}
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if (!internalize && size < 0x800 &&
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internalized_entries.find(cache_addr) == internalized_entries.end()) {
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return StreamBufferUpload(host_ptr, size, alignment);
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}
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AlignBuffer(alignment);
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const GLintptr uploaded_offset = buffer_offset;
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std::memcpy(buffer_ptr, host_ptr, size);
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buffer_ptr += size;
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buffer_offset += size;
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const GLuint buffer = stream_buffer.GetHandle();
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if (cache) {
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const VAddr cpu_addr = *memory_manager.GpuToCpuAddress(gpu_addr);
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Register(std::make_shared<CachedBufferEntry>(cpu_addr, host_ptr, size, alignment, buffer,
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uploaded_offset));
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auto entry = TryGet(host_ptr);
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if (!entry) {
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return FixedBufferUpload(gpu_addr, host_ptr, size, internalize);
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}
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return {buffer, uploaded_offset};
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if (entry->GetSize() < size) {
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GrowBuffer(entry, size);
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}
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return {entry->GetBuffer(), CachedBufferOffset};
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}
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std::pair<GLuint, GLintptr> OGLBufferCache::UploadHostMemory(const void* raw_pointer,
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std::size_t size,
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std::size_t alignment) {
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std::lock_guard lock{mutex};
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OGLBufferCache::BufferInfo OGLBufferCache::UploadHostMemory(const void* raw_pointer,
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std::size_t size,
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std::size_t alignment) {
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return StreamBufferUpload(raw_pointer, size, alignment);
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}
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bool OGLBufferCache::Map(std::size_t max_size) {
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const auto max_size_ = static_cast<GLsizeiptr>(max_size);
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bool invalidate;
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std::tie(buffer_ptr, buffer_offset_base, invalidate) = stream_buffer.Map(max_size_, 4);
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buffer_offset = buffer_offset_base;
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return invalidate;
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}
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void OGLBufferCache::Unmap() {
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stream_buffer.Unmap(buffer_offset - buffer_offset_base);
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}
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OGLBufferCache::BufferInfo OGLBufferCache::StreamBufferUpload(const void* raw_pointer,
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std::size_t size,
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std::size_t alignment) {
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AlignBuffer(alignment);
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std::memcpy(buffer_ptr, raw_pointer, size);
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const GLintptr uploaded_offset = buffer_offset;
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std::memcpy(buffer_ptr, raw_pointer, size);
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buffer_ptr += size;
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buffer_offset += size;
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return {stream_buffer.GetHandle(), uploaded_offset};
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}
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bool OGLBufferCache::Map(std::size_t max_size) {
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bool invalidate;
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std::tie(buffer_ptr, buffer_offset_base, invalidate) =
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stream_buffer.Map(static_cast<GLsizeiptr>(max_size), 4);
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buffer_offset = buffer_offset_base;
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if (invalidate) {
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InvalidateAll();
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OGLBufferCache::BufferInfo OGLBufferCache::FixedBufferUpload(GPUVAddr gpu_addr, u8* host_ptr,
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std::size_t size, bool internalize) {
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if (internalize) {
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internalized_entries.emplace(ToCacheAddr(host_ptr));
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}
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return invalidate;
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auto& memory_manager = Core::System::GetInstance().GPU().MemoryManager();
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const auto cpu_addr = *memory_manager.GpuToCpuAddress(gpu_addr);
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auto entry = GetUncachedBuffer(cpu_addr, host_ptr);
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entry->SetSize(size);
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entry->SetInternalState(internalize);
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Register(entry);
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if (entry->GetCapacity() < size) {
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entry->SetCapacity(CreateBuffer(size, GL_STATIC_DRAW), size);
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}
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glNamedBufferSubData(entry->GetBuffer(), 0, static_cast<GLintptr>(size), host_ptr);
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return {entry->GetBuffer(), CachedBufferOffset};
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}
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void OGLBufferCache::Unmap() {
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stream_buffer.Unmap(buffer_offset - buffer_offset_base);
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void OGLBufferCache::GrowBuffer(std::shared_ptr<CachedBufferEntry>& entry, std::size_t new_size) {
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const auto old_size = static_cast<GLintptr>(entry->GetSize());
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if (entry->GetCapacity() < new_size) {
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const auto old_buffer = entry->GetBuffer();
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OGLBuffer new_buffer = CreateBuffer(new_size, GL_STATIC_COPY);
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// Copy bits from the old buffer to the new buffer.
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glCopyNamedBufferSubData(old_buffer, new_buffer.handle, 0, 0, old_size);
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entry->SetCapacity(std::move(new_buffer), new_size);
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}
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// Upload the new bits.
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const auto size_diff = static_cast<GLintptr>(new_size - old_size);
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glNamedBufferSubData(entry->GetBuffer(), old_size, size_diff, entry->GetHostPtr() + old_size);
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// Update entry's size in the object and in the cache.
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entry->SetSize(new_size);
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Unregister(entry);
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Register(entry);
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}
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std::shared_ptr<CachedBufferEntry> OGLBufferCache::GetUncachedBuffer(VAddr cpu_addr, u8* host_ptr) {
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if (auto entry = TryGetReservedBuffer(host_ptr); entry) {
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return entry;
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}
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return std::make_shared<CachedBufferEntry>(cpu_addr, host_ptr);
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}
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std::shared_ptr<CachedBufferEntry> OGLBufferCache::TryGetReservedBuffer(u8* host_ptr) {
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const auto it = buffer_reserve.find(ToCacheAddr(host_ptr));
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if (it == buffer_reserve.end()) {
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return {};
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}
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auto& reserve = it->second;
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auto entry = reserve.back();
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reserve.pop_back();
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return entry;
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}
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void OGLBufferCache::ReserveBuffer(std::shared_ptr<CachedBufferEntry> entry) {
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buffer_reserve[entry->GetCacheAddr()].push_back(std::move(entry));
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}
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void OGLBufferCache::AlignBuffer(std::size_t alignment) {
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@ -5,9 +5,12 @@
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#pragma once
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#include <cstddef>
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#include <map>
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#include <memory>
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#include <tuple>
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#include <unordered_set>
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#include <utility>
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#include <vector>
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#include "common/common_types.h"
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#include "video_core/rasterizer_cache.h"
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@ -20,8 +23,7 @@ class RasterizerOpenGL;
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class CachedBufferEntry final : public RasterizerCacheObject {
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public:
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explicit CachedBufferEntry(VAddr cpu_addr, u8* host_ptr, std::size_t size,
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std::size_t alignment, GLuint buffer, GLintptr offset);
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explicit CachedBufferEntry(VAddr cpu_addr, u8* host_ptr);
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VAddr GetCpuAddr() const override {
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return cpu_addr;
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@ -35,55 +37,87 @@ public:
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return size;
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}
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std::size_t GetAlignment() const {
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return alignment;
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std::size_t GetCapacity() const {
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return capacity;
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}
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bool IsInternalized() const {
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return is_internal;
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}
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GLuint GetBuffer() const {
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return buffer;
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return buffer.handle;
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}
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GLintptr GetOffset() const {
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return offset;
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void SetSize(std::size_t new_size) {
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size = new_size;
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}
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void SetInternalState(bool is_internal_) {
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is_internal = is_internal_;
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}
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void SetCapacity(OGLBuffer&& new_buffer, std::size_t new_capacity) {
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capacity = new_capacity;
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buffer = std::move(new_buffer);
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}
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private:
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VAddr cpu_addr{};
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std::size_t size{};
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std::size_t alignment{};
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GLuint buffer{};
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GLintptr offset{};
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std::size_t capacity{};
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bool is_internal{};
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OGLBuffer buffer;
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};
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class OGLBufferCache final : public RasterizerCache<std::shared_ptr<CachedBufferEntry>> {
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using BufferInfo = std::pair<GLuint, GLintptr>;
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public:
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explicit OGLBufferCache(RasterizerOpenGL& rasterizer, std::size_t size);
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~OGLBufferCache();
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void Unregister(const std::shared_ptr<CachedBufferEntry>& entry) override;
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/// Uploads data from a guest GPU address. Returns the OpenGL buffer where it's located and its
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/// offset.
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std::pair<GLuint, GLintptr> UploadMemory(GPUVAddr gpu_addr, std::size_t size,
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std::size_t alignment = 4, bool cache = true);
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BufferInfo UploadMemory(GPUVAddr gpu_addr, std::size_t size, std::size_t alignment = 4,
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bool internalize = false);
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/// Uploads from a host memory. Returns the OpenGL buffer where it's located and its offset.
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std::pair<GLuint, GLintptr> UploadHostMemory(const void* raw_pointer, std::size_t size,
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std::size_t alignment = 4);
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BufferInfo UploadHostMemory(const void* raw_pointer, std::size_t size,
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std::size_t alignment = 4);
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bool Map(std::size_t max_size);
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void Unmap();
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protected:
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void AlignBuffer(std::size_t alignment);
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// We do not have to flush this cache as things in it are never modified by us.
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void FlushObjectInner(const std::shared_ptr<CachedBufferEntry>& object) override {}
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private:
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OGLStreamBuffer stream_buffer;
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BufferInfo StreamBufferUpload(const void* raw_pointer, std::size_t size, std::size_t alignment);
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BufferInfo FixedBufferUpload(GPUVAddr gpu_addr, u8* host_ptr, std::size_t size,
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bool internalize);
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void GrowBuffer(std::shared_ptr<CachedBufferEntry>& entry, std::size_t new_size);
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std::shared_ptr<CachedBufferEntry> GetUncachedBuffer(VAddr cpu_addr, u8* host_ptr);
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std::shared_ptr<CachedBufferEntry> TryGetReservedBuffer(u8* host_ptr);
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void ReserveBuffer(std::shared_ptr<CachedBufferEntry> entry);
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void AlignBuffer(std::size_t alignment);
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u8* buffer_ptr = nullptr;
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GLintptr buffer_offset = 0;
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GLintptr buffer_offset_base = 0;
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OGLStreamBuffer stream_buffer;
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std::unordered_set<CacheAddr> internalized_entries;
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std::unordered_map<CacheAddr, std::vector<std::shared_ptr<CachedBufferEntry>>> buffer_reserve;
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};
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} // namespace OpenGL
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@ -790,7 +790,7 @@ void RasterizerOpenGL::SetupConstBuffer(const Tegra::Engines::ConstBufferInfo& b
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size = Common::AlignUp(size, sizeof(GLvec4));
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ASSERT_MSG(size <= MaxConstbufferSize, "Constant buffer is too big");
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const std::size_t alignment = device.GetUniformBufferAlignment();
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const auto alignment = device.GetUniformBufferAlignment();
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const auto [cbuf, offset] = buffer_cache.UploadMemory(buffer.address, size, alignment);
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bind_ubo_pushbuffer.Push(cbuf, offset, size);
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}
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