From d2b25575426b9b52049b88d8d6d9ae83c81da312 Mon Sep 17 00:00:00 2001
From: ReinUsesLisp <reinuseslisp@airmail.cc>
Date: Wed, 27 May 2020 17:31:12 -0300
Subject: [PATCH] texture_cache: Use small vector for surface vectors
This avoids most heap allocations when collecting surfaces into a
vector.
---
src/video_core/texture_cache/texture_cache.h | 19 ++++++++++---------
1 file changed, 10 insertions(+), 9 deletions(-)
diff --git a/src/video_core/texture_cache/texture_cache.h b/src/video_core/texture_cache/texture_cache.h
index d6efc34b2..d7e42697d 100644
--- a/src/video_core/texture_cache/texture_cache.h
+++ b/src/video_core/texture_cache/texture_cache.h
@@ -14,6 +14,7 @@
#include <unordered_map>
#include <vector>
+#include <boost/container/small_vector.hpp>
#include <boost/icl/interval_map.hpp>
#include <boost/range/iterator_range.hpp>
@@ -53,6 +54,7 @@ using RenderTargetConfig = Tegra::Engines::Maxwell3D::Regs::RenderTargetConfig;
template <typename TSurface, typename TView>
class TextureCache {
+ using VectorSurface = boost::container::small_vector<TSurface, 1>;
public:
void InvalidateRegion(VAddr addr, std::size_t size) {
@@ -498,7 +500,7 @@ private:
* @param untopological Indicates to the recycler that the texture has no way
* to match the overlaps due to topological reasons.
**/
- RecycleStrategy PickStrategy(std::vector<TSurface>& overlaps, const SurfaceParams& params,
+ RecycleStrategy PickStrategy(VectorSurface& overlaps, const SurfaceParams& params,
const GPUVAddr gpu_addr, const MatchTopologyResult untopological) {
if (Settings::IsGPULevelExtreme()) {
return RecycleStrategy::Flush;
@@ -538,9 +540,8 @@ private:
* @param untopological Indicates to the recycler that the texture has no way to match the
* overlaps due to topological reasons.
**/
- std::pair<TSurface, TView> RecycleSurface(std::vector<TSurface>& overlaps,
- const SurfaceParams& params, const GPUVAddr gpu_addr,
- const bool preserve_contents,
+ std::pair<TSurface, TView> RecycleSurface(VectorSurface& overlaps, const SurfaceParams& params,
+ const GPUVAddr gpu_addr, const bool preserve_contents,
const MatchTopologyResult untopological) {
const bool do_load = preserve_contents && Settings::IsGPULevelExtreme();
for (auto& surface : overlaps) {
@@ -650,7 +651,7 @@ private:
* @param params The parameters on the new surface.
* @param gpu_addr The starting address of the new surface.
**/
- std::optional<std::pair<TSurface, TView>> TryReconstructSurface(std::vector<TSurface>& overlaps,
+ std::optional<std::pair<TSurface, TView>> TryReconstructSurface(VectorSurface& overlaps,
const SurfaceParams& params,
const GPUVAddr gpu_addr) {
if (params.target == SurfaceTarget::Texture3D) {
@@ -708,7 +709,7 @@ private:
* @param preserve_contents Indicates that the new surface should be loaded from memory or
* left blank.
*/
- std::optional<std::pair<TSurface, TView>> Manage3DSurfaces(std::vector<TSurface>& overlaps,
+ std::optional<std::pair<TSurface, TView>> Manage3DSurfaces(VectorSurface& overlaps,
const SurfaceParams& params,
const GPUVAddr gpu_addr,
const VAddr cpu_addr,
@@ -810,7 +811,7 @@ private:
TSurface& current_surface = iter->second;
const auto topological_result = current_surface->MatchesTopology(params);
if (topological_result != MatchTopologyResult::FullMatch) {
- std::vector<TSurface> overlaps{current_surface};
+ VectorSurface overlaps{current_surface};
return RecycleSurface(overlaps, params, gpu_addr, preserve_contents,
topological_result);
}
@@ -1124,14 +1125,14 @@ private:
}
}
- std::vector<TSurface> GetSurfacesInRegion(const VAddr cpu_addr, const std::size_t size) {
+ VectorSurface GetSurfacesInRegion(const VAddr cpu_addr, const std::size_t size) {
if (size == 0) {
return {};
}
const VAddr cpu_addr_end = cpu_addr + size;
VAddr start = cpu_addr >> registry_page_bits;
const VAddr end = (cpu_addr_end - 1) >> registry_page_bits;
- std::vector<TSurface> surfaces;
+ VectorSurface surfaces;
while (start <= end) {
std::vector<TSurface>& list = registry[start];
for (auto& surface : list) {