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authorFernando Sahmkow <fsahmkow27@gmail.com>2019-09-23 20:02:02 +0200
committerFernandoS27 <fsahmkow27@gmail.com>2019-10-25 15:01:29 +0200
commit1a58f45d76fe7756dd365e099d1536da769c1eab (patch)
tree668a61e870c57249edf94ba2e2002d3ace18b118 /src/video_core/shader
parentShader_IR: Implement BRX tracking. (diff)
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Diffstat (limited to 'src/video_core/shader')
-rw-r--r--src/video_core/shader/const_buffer_locker.cpp72
-rw-r--r--src/video_core/shader/const_buffer_locker.h50
-rw-r--r--src/video_core/shader/shader_ir.h1
3 files changed, 123 insertions, 0 deletions
diff --git a/src/video_core/shader/const_buffer_locker.cpp b/src/video_core/shader/const_buffer_locker.cpp
new file mode 100644
index 000000000..6a9e0ed5e
--- /dev/null
+++ b/src/video_core/shader/const_buffer_locker.cpp
@@ -0,0 +1,72 @@
+// Copyright 2019 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "common/assert.h"
+#include "common/common_types.h"
+#include "video_core/engines/maxwell_3d.h"
+#include "video_core/shader/const_buffer_locker.h"
+
+namespace VideoCommon::Shader {
+
+ConstBufferLocker::ConstBufferLocker(Tegra::Engines::ShaderType shader_stage)
+ : engine{nullptr}, shader_stage{shader_stage} {}
+
+ConstBufferLocker::ConstBufferLocker(Tegra::Engines::ShaderType shader_stage,
+ Tegra::Engines::ConstBufferEngineInterface* engine)
+ : engine{engine}, shader_stage{shader_stage} {}
+
+bool ConstBufferLocker::IsEngineSet() const {
+ return engine != nullptr;
+}
+
+void ConstBufferLocker::SetEngine(Tegra::Engines::ConstBufferEngineInterface* engine_) {
+ engine = engine_;
+}
+
+std::optional<u32> ConstBufferLocker::ObtainKey(u32 buffer, u32 offset) {
+ const std::pair<u32, u32> key = {buffer, offset};
+ const auto iter = keys.find(key);
+ if (iter != keys.end()) {
+ return {iter->second};
+ }
+ if (!IsEngineSet()) {
+ return {};
+ }
+ const u32 value = engine->AccessConstBuffer32(shader_stage, buffer, offset);
+ keys.emplace(key, value);
+ return {value};
+}
+
+void ConstBufferLocker::InsertKey(u32 buffer, u32 offset, u32 value) {
+ const std::pair<u32, u32> key = {buffer, offset};
+ keys[key] = value;
+}
+
+u32 ConstBufferLocker::NumKeys() const {
+ return keys.size();
+}
+
+const std::unordered_map<std::pair<u32, u32>, u32, Common::PairHash>&
+ConstBufferLocker::AccessKeys() const {
+ return keys;
+}
+
+bool ConstBufferLocker::AreKeysConsistant() const {
+ if (!IsEngineSet()) {
+ return false;
+ }
+ for (const auto& key_val : keys) {
+ const std::pair<u32, u32> key = key_val.first;
+ const u32 value = key_val.second;
+ const u32 other_value = engine->AccessConstBuffer32(shader_stage, key.first, key.second);
+ if (other_value != value) {
+ return false;
+ }
+ }
+ return true;
+}
+
+} // namespace VideoCommon::Shader
diff --git a/src/video_core/shader/const_buffer_locker.h b/src/video_core/shader/const_buffer_locker.h
new file mode 100644
index 000000000..39e62584d
--- /dev/null
+++ b/src/video_core/shader/const_buffer_locker.h
@@ -0,0 +1,50 @@
+// Copyright 2019 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <unordered_map>
+#include "common/common_types.h"
+#include "common/hash.h"
+#include "video_core/engines/const_buffer_engine_interface.h"
+
+namespace VideoCommon::Shader {
+
+class ConstBufferLocker {
+public:
+ explicit ConstBufferLocker(Tegra::Engines::ShaderType shader_stage);
+
+ explicit ConstBufferLocker(Tegra::Engines::ShaderType shader_stage,
+ Tegra::Engines::ConstBufferEngineInterface* engine);
+
+ // Checks if an engine is setup, it may be possible that during disk shader
+ // cache run, the engines have not been created yet.
+ bool IsEngineSet() const;
+
+ // Use this to set/change the engine used for this shader.
+ void SetEngine(Tegra::Engines::ConstBufferEngineInterface* engine);
+
+ // Retrieves a key from the locker, if it's registered, it will give the
+ // registered value, if not it will obtain it from maxwell3d and register it.
+ std::optional<u32> ObtainKey(u32 buffer, u32 offset);
+
+ // Manually inserts a key.
+ void InsertKey(u32 buffer, u32 offset, u32 value);
+
+ // Retrieves the number of keys registered.
+ u32 NumKeys() const;
+
+ // Gives an accessor to the key's database.
+ const std::unordered_map<std::pair<u32, u32>, u32, Common::PairHash>& AccessKeys() const;
+
+ // Checks keys against maxwell3d's current const buffers. Returns true if they
+ // are the same value, false otherwise;
+ bool AreKeysConsistant() const;
+
+private:
+ Tegra::Engines::ConstBufferEngineInterface* engine;
+ Tegra::Engines::ShaderType shader_stage;
+ std::unordered_map<std::pair<u32, u32>, u32, Common::PairHash> keys{};
+};
+} // namespace VideoCommon::Shader
diff --git a/src/video_core/shader/shader_ir.h b/src/video_core/shader/shader_ir.h
index 91cd0a534..68818643c 100644
--- a/src/video_core/shader/shader_ir.h
+++ b/src/video_core/shader/shader_ir.h
@@ -17,6 +17,7 @@
#include "video_core/engines/shader_header.h"
#include "video_core/shader/ast.h"
#include "video_core/shader/compiler_settings.h"
+#include "video_core/shader/const_buffer_locker.h"
#include "video_core/shader/node.h"
namespace VideoCommon::Shader {