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gl_rasterizer_cache: Implement caching for texture and framebuffer surfaces.

gl_rasterizer_cache: Improved cache management based on Citra's implementation.

gl_surface_cache: Add some docstrings.
This commit is contained in:
bunnei 2018-06-26 16:14:14 -04:00
parent 8af1ae46aa
commit 1dd754590f
3 changed files with 168 additions and 16 deletions

View file

@ -435,22 +435,35 @@ void RasterizerOpenGL::DrawArrays() {
// Mark framebuffer surfaces as dirty
if (color_surface != nullptr && write_color_fb) {
res_cache.FlushSurface(color_surface);
res_cache.MarkSurfaceAsDirty(color_surface);
}
if (depth_surface != nullptr && write_depth_fb) {
res_cache.FlushSurface(depth_surface);
res_cache.MarkSurfaceAsDirty(depth_surface);
}
}
void RasterizerOpenGL::NotifyMaxwellRegisterChanged(u32 method) {}
void RasterizerOpenGL::FlushAll() {}
void RasterizerOpenGL::FlushAll() {
MICROPROFILE_SCOPE(OpenGL_CacheManagement);
res_cache.FlushRegion(0, Kernel::VMManager::MAX_ADDRESS);
}
void RasterizerOpenGL::FlushRegion(Tegra::GPUVAddr addr, u64 size) {}
void RasterizerOpenGL::FlushRegion(Tegra::GPUVAddr addr, u64 size) {
MICROPROFILE_SCOPE(OpenGL_CacheManagement);
res_cache.FlushRegion(addr, size);
}
void RasterizerOpenGL::InvalidateRegion(Tegra::GPUVAddr addr, u64 size) {}
void RasterizerOpenGL::InvalidateRegion(Tegra::GPUVAddr addr, u64 size) {
MICROPROFILE_SCOPE(OpenGL_CacheManagement);
res_cache.InvalidateRegion(addr, size);
}
void RasterizerOpenGL::FlushAndInvalidateRegion(Tegra::GPUVAddr addr, u64 size) {}
void RasterizerOpenGL::FlushAndInvalidateRegion(Tegra::GPUVAddr addr, u64 size) {
MICROPROFILE_SCOPE(OpenGL_CacheManagement);
res_cache.FlushRegion(addr, size);
res_cache.InvalidateRegion(addr, size);
}
bool RasterizerOpenGL::AccelerateDisplayTransfer(const void* config) {
MICROPROFILE_SCOPE(OpenGL_Blits);

View file

@ -12,6 +12,7 @@
#include "core/core.h"
#include "core/hle/kernel/process.h"
#include "core/memory.h"
#include "core/settings.h"
#include "video_core/engines/maxwell_3d.h"
#include "video_core/renderer_opengl/gl_rasterizer_cache.h"
#include "video_core/textures/astc.h"
@ -215,7 +216,7 @@ static void AllocateSurfaceTexture(GLuint texture, const FormatTuple& format_tup
cur_state.Apply();
}
CachedSurface::CachedSurface(const SurfaceParams& params) : params(params), gl_buffer_size(0) {
CachedSurface::CachedSurface(const SurfaceParams& params) : params(params) {
texture.Create();
const auto& rect{params.GetRect()};
AllocateSurfaceTexture(texture.handle,
@ -370,6 +371,12 @@ RasterizerCacheOpenGL::RasterizerCacheOpenGL() {
draw_framebuffer.Create();
}
RasterizerCacheOpenGL::~RasterizerCacheOpenGL() {
while (!surface_cache.empty()) {
UnregisterSurface(surface_cache.begin()->second);
}
}
Surface RasterizerCacheOpenGL::GetTextureSurface(const Tegra::Texture::FullTextureInfo& config) {
return GetSurface(SurfaceParams::CreateForTexture(config));
}
@ -425,9 +432,17 @@ void RasterizerCacheOpenGL::LoadSurface(const Surface& surface) {
surface->UploadGLTexture(read_framebuffer.handle, draw_framebuffer.handle);
}
void RasterizerCacheOpenGL::FlushSurface(const Surface& surface) {
void RasterizerCacheOpenGL::MarkSurfaceAsDirty(const Surface& surface) {
if (Settings::values.use_accurate_framebuffers) {
// If enabled, always flush dirty surfaces
surface->DownloadGLTexture(read_framebuffer.handle, draw_framebuffer.handle);
surface->FlushGLBuffer();
} else {
// Otherwise, don't mark surfaces that we write to as cached, because the resulting loads
// and flushes are very slow and do not seem to improve accuracy
const auto& params{surface->GetSurfaceParams()};
Memory::RasterizerMarkRegionCached(params.addr, params.size_in_bytes, false);
}
}
Surface RasterizerCacheOpenGL::GetSurface(const SurfaceParams& params) {
@ -441,12 +456,15 @@ Surface RasterizerCacheOpenGL::GetSurface(const SurfaceParams& params) {
Surface surface;
if (search != surface_cache.end()) {
surface = search->second;
if (Settings::values.use_accurate_framebuffers) {
// Reload the surface from Switch memory
LoadSurface(surface);
}
} else {
surface = std::make_shared<CachedSurface>(params);
surface_cache[surface_key] = surface;
}
RegisterSurface(surface);
LoadSurface(surface);
}
return surface;
}
@ -476,3 +494,87 @@ Surface RasterizerCacheOpenGL::TryFindFramebufferSurface(VAddr cpu_addr) const {
return surfaces[0];
}
void RasterizerCacheOpenGL::FlushRegion(Tegra::GPUVAddr /*addr*/, size_t /*size*/) {
// TODO(bunnei): This is unused in the current implementation of the rasterizer cache. We should
// probably implement this in the future, but for now, the `use_accurate_framebufers` setting
// can be used to always flush.
}
void RasterizerCacheOpenGL::InvalidateRegion(Tegra::GPUVAddr addr, size_t size) {
for (const auto& pair : surface_cache) {
const auto& surface{pair.second};
const auto& params{surface->GetSurfaceParams()};
if (params.IsOverlappingRegion(addr, size)) {
UnregisterSurface(surface);
}
}
}
void RasterizerCacheOpenGL::RegisterSurface(const Surface& surface) {
const auto& params{surface->GetSurfaceParams()};
const auto& surface_key{SurfaceKey::Create(params)};
const auto& search{surface_cache.find(surface_key)};
if (search != surface_cache.end()) {
// Registered already
return;
}
surface_cache[surface_key] = surface;
UpdatePagesCachedCount(params.addr, params.size_in_bytes, 1);
}
void RasterizerCacheOpenGL::UnregisterSurface(const Surface& surface) {
const auto& params{surface->GetSurfaceParams()};
const auto& surface_key{SurfaceKey::Create(params)};
const auto& search{surface_cache.find(surface_key)};
if (search == surface_cache.end()) {
// Unregistered already
return;
}
UpdatePagesCachedCount(params.addr, params.size_in_bytes, -1);
surface_cache.erase(search);
}
template <typename Map, typename Interval>
constexpr auto RangeFromInterval(Map& map, const Interval& interval) {
return boost::make_iterator_range(map.equal_range(interval));
}
void RasterizerCacheOpenGL::UpdatePagesCachedCount(Tegra::GPUVAddr addr, u64 size, int delta) {
const u64 num_pages = ((addr + size - 1) >> Tegra::MemoryManager::PAGE_BITS) -
(addr >> Tegra::MemoryManager::PAGE_BITS) + 1;
const u64 page_start = addr >> Tegra::MemoryManager::PAGE_BITS;
const u64 page_end = page_start + num_pages;
// Interval maps will erase segments if count reaches 0, so if delta is negative we have to
// subtract after iterating
const auto pages_interval = PageMap::interval_type::right_open(page_start, page_end);
if (delta > 0)
cached_pages.add({pages_interval, delta});
for (const auto& pair : RangeFromInterval(cached_pages, pages_interval)) {
const auto interval = pair.first & pages_interval;
const int count = pair.second;
const Tegra::GPUVAddr interval_start_addr = boost::icl::first(interval)
<< Tegra::MemoryManager::PAGE_BITS;
const Tegra::GPUVAddr interval_end_addr = boost::icl::last_next(interval)
<< Tegra::MemoryManager::PAGE_BITS;
const u64 interval_size = interval_end_addr - interval_start_addr;
if (delta > 0 && count == delta)
Memory::RasterizerMarkRegionCached(interval_start_addr, interval_size, true);
else if (delta < 0 && count == -delta)
Memory::RasterizerMarkRegionCached(interval_start_addr, interval_size, false);
else
ASSERT(count >= 0);
}
if (delta < 0)
cached_pages.add({pages_interval, delta});
}

View file

@ -8,7 +8,7 @@
#include <map>
#include <memory>
#include <vector>
#include <boost/icl/interval_map.hpp>
#include "common/common_types.h"
#include "common/hash.h"
#include "common/math_util.h"
@ -19,6 +19,7 @@
class CachedSurface;
using Surface = std::shared_ptr<CachedSurface>;
using SurfaceSurfaceRect_Tuple = std::tuple<Surface, Surface, MathUtil::Rectangle<u32>>;
using PageMap = boost::icl::interval_map<u64, int>;
struct SurfaceParams {
enum class PixelFormat {
@ -243,8 +244,10 @@ struct SurfaceParams {
return SurfaceType::Invalid;
}
/// Returns the rectangle corresponding to this surface
MathUtil::Rectangle<u32> GetRect() const;
/// Returns the size of this surface in bytes, adjusted for compression
size_t SizeInBytes() const {
const u32 compression_factor{GetCompressionFactor(pixel_format)};
ASSERT(width % compression_factor == 0);
@ -253,10 +256,18 @@ struct SurfaceParams {
GetFormatBpp(pixel_format) / CHAR_BIT;
}
/// Returns the CPU virtual address for this surface
VAddr GetCpuAddr() const;
/// Returns true if the specified region overlaps with this surface's region in Switch memory
bool IsOverlappingRegion(Tegra::GPUVAddr region_addr, size_t region_size) const {
return addr <= (region_addr + region_size) && region_addr <= (addr + size_in_bytes);
}
/// Creates SurfaceParams from a texture configation
static SurfaceParams CreateForTexture(const Tegra::Texture::FullTextureInfo& config);
/// Creates SurfaceParams from a framebuffer configation
static SurfaceParams CreateForFramebuffer(
const Tegra::Engines::Maxwell3D::Regs::RenderTargetConfig& config);
@ -272,6 +283,7 @@ struct SurfaceParams {
size_t size_in_bytes;
};
/// Hashable variation of SurfaceParams, used for a key in the surface cache
struct SurfaceKey : Common::HashableStruct<SurfaceParams> {
static SurfaceKey Create(const SurfaceParams& params) {
SurfaceKey res;
@ -325,18 +337,43 @@ private:
class RasterizerCacheOpenGL final : NonCopyable {
public:
RasterizerCacheOpenGL();
~RasterizerCacheOpenGL();
/// Get a surface based on the texture configuration
Surface GetTextureSurface(const Tegra::Texture::FullTextureInfo& config);
/// Get the color and depth surfaces based on the framebuffer configuration
SurfaceSurfaceRect_Tuple GetFramebufferSurfaces(bool using_color_fb, bool using_depth_fb,
const MathUtil::Rectangle<s32>& viewport);
void LoadSurface(const Surface& surface);
void FlushSurface(const Surface& surface);
/// Marks the specified surface as "dirty", in that it is out of sync with Switch memory
void MarkSurfaceAsDirty(const Surface& surface);
/// Tries to find a framebuffer GPU address based on the provided CPU address
Surface TryFindFramebufferSurface(VAddr cpu_addr) const;
/// Write any cached resources overlapping the region back to memory (if dirty)
void FlushRegion(Tegra::GPUVAddr addr, size_t size);
/// Mark the specified region as being invalidated
void InvalidateRegion(Tegra::GPUVAddr addr, size_t size);
private:
void LoadSurface(const Surface& surface);
Surface GetSurface(const SurfaceParams& params);
/// Register surface into the cache
void RegisterSurface(const Surface& surface);
/// Remove surface from the cache
void UnregisterSurface(const Surface& surface);
/// Increase/decrease the number of surface in pages touching the specified region
void UpdatePagesCachedCount(Tegra::GPUVAddr addr, u64 size, int delta);
std::unordered_map<SurfaceKey, Surface> surface_cache;
PageMap cached_pages;
OGLFramebuffer read_framebuffer;
OGLFramebuffer draw_framebuffer;
};