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// Copyright 2019 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <algorithm>
#include <memory>
#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 {
using Tegra::Engines::SamplerDescriptor;
ConstBufferLocker::ConstBufferLocker(Tegra::Engines::ShaderType shader_stage)
: stage{shader_stage} {}
ConstBufferLocker::ConstBufferLocker(Tegra::Engines::ShaderType shader_stage,
Tegra::Engines::ConstBufferEngineInterface& engine)
: stage{shader_stage}, engine{&engine} {}
ConstBufferLocker::~ConstBufferLocker() = default;
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 (!engine) {
return std::nullopt;
}
const u32 value = engine->AccessConstBuffer32(stage, buffer, offset);
keys.emplace(key, value);
return value;
}
std::optional<SamplerDescriptor> ConstBufferLocker::ObtainBoundSampler(u32 offset) {
const u32 key = offset;
const auto iter = bound_samplers.find(key);
if (iter != bound_samplers.end()) {
return iter->second;
}
if (!engine) {
return std::nullopt;
}
const SamplerDescriptor value = engine->AccessBoundSampler(stage, offset);
bound_samplers.emplace(key, value);
return value;
}
std::optional<Tegra::Engines::SamplerDescriptor> ConstBufferLocker::ObtainBindlessSampler(
u32 buffer, u32 offset) {
const std::pair key = {buffer, offset};
const auto iter = bindless_samplers.find(key);
if (iter != bindless_samplers.end()) {
return iter->second;
}
if (!engine) {
return std::nullopt;
}
const SamplerDescriptor value = engine->AccessBindlessSampler(stage, buffer, offset);
bindless_samplers.emplace(key, value);
return value;
}
void ConstBufferLocker::InsertKey(u32 buffer, u32 offset, u32 value) {
keys.insert_or_assign({buffer, offset}, value);
}
void ConstBufferLocker::InsertBoundSampler(u32 offset, SamplerDescriptor sampler) {
bound_samplers.insert_or_assign(offset, sampler);
}
void ConstBufferLocker::InsertBindlessSampler(u32 buffer, u32 offset, SamplerDescriptor sampler) {
bindless_samplers.insert_or_assign({buffer, offset}, sampler);
}
bool ConstBufferLocker::IsConsistent() const {
if (!engine) {
return false;
}
return std::all_of(keys.begin(), keys.end(),
[this](const auto& pair) {
const auto [cbuf, offset] = pair.first;
const auto value = pair.second;
return value == engine->AccessConstBuffer32(stage, cbuf, offset);
}) &&
std::all_of(bound_samplers.begin(), bound_samplers.end(),
[this](const auto& sampler) {
const auto [key, value] = sampler;
return value == engine->AccessBoundSampler(stage, key);
}) &&
std::all_of(bindless_samplers.begin(), bindless_samplers.end(),
[this](const auto& sampler) {
const auto [cbuf, offset] = sampler.first;
const auto value = sampler.second;
return value == engine->AccessBindlessSampler(stage, cbuf, offset);
});
}
bool ConstBufferLocker::HasEqualKeys(const ConstBufferLocker& rhs) const {
return keys == rhs.keys && bound_samplers == rhs.bound_samplers &&
bindless_samplers == rhs.bindless_samplers;
}
} // namespace VideoCommon::Shader
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