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// Copyright 2019 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <algorithm>
#include <tuple>
#include "common/assert.h"
#include "common/common_types.h"
#include "video_core/engines/kepler_compute.h"
#include "video_core/engines/maxwell_3d.h"
#include "video_core/engines/shader_type.h"
#include "video_core/shader/registry.h"
namespace VideoCommon::Shader {
using Tegra::Engines::ConstBufferEngineInterface;
using Tegra::Engines::SamplerDescriptor;
using Tegra::Engines::ShaderType;
namespace {
GraphicsInfo MakeGraphicsInfo(ShaderType shader_stage, ConstBufferEngineInterface& engine) {
if (shader_stage == ShaderType::Compute) {
return {};
}
auto& graphics = static_cast<Tegra::Engines::Maxwell3D&>(engine);
GraphicsInfo info;
info.tfb_layouts = graphics.regs.tfb_layouts;
info.tfb_varying_locs = graphics.regs.tfb_varying_locs;
info.primitive_topology = graphics.regs.draw.topology;
info.tessellation_primitive = graphics.regs.tess_mode.prim;
info.tessellation_spacing = graphics.regs.tess_mode.spacing;
info.tfb_enabled = graphics.regs.tfb_enabled;
info.tessellation_clockwise = graphics.regs.tess_mode.cw;
return info;
}
ComputeInfo MakeComputeInfo(ShaderType shader_stage, ConstBufferEngineInterface& engine) {
if (shader_stage != ShaderType::Compute) {
return {};
}
auto& compute = static_cast<Tegra::Engines::KeplerCompute&>(engine);
const auto& launch = compute.launch_description;
ComputeInfo info;
info.workgroup_size = {launch.block_dim_x, launch.block_dim_y, launch.block_dim_z};
info.local_memory_size_in_words = launch.local_pos_alloc;
info.shared_memory_size_in_words = launch.shared_alloc;
return info;
}
} // Anonymous namespace
Registry::Registry(Tegra::Engines::ShaderType shader_stage, const SerializedRegistryInfo& info)
: stage{shader_stage}, stored_guest_driver_profile{info.guest_driver_profile},
bound_buffer{info.bound_buffer}, graphics_info{info.graphics}, compute_info{info.compute} {}
Registry::Registry(Tegra::Engines::ShaderType shader_stage,
Tegra::Engines::ConstBufferEngineInterface& engine)
: stage{shader_stage}, engine{&engine}, bound_buffer{engine.GetBoundBuffer()},
graphics_info{MakeGraphicsInfo(shader_stage, engine)}, compute_info{MakeComputeInfo(
shader_stage, engine)} {}
Registry::~Registry() = default;
std::optional<u32> Registry::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> Registry::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> Registry::ObtainSeparateSampler(
std::pair<u32, u32> buffers, std::pair<u32, u32> offsets) {
SeparateSamplerKey key;
key.buffers = buffers;
key.offsets = offsets;
const auto iter = separate_samplers.find(key);
if (iter != separate_samplers.end()) {
return iter->second;
}
if (!engine) {
return std::nullopt;
}
const u32 handle_1 = engine->AccessConstBuffer32(stage, key.buffers.first, key.offsets.first);
const u32 handle_2 = engine->AccessConstBuffer32(stage, key.buffers.second, key.offsets.second);
const SamplerDescriptor value = engine->AccessSampler(handle_1 | handle_2);
separate_samplers.emplace(key, value);
return value;
}
std::optional<Tegra::Engines::SamplerDescriptor> Registry::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 Registry::InsertKey(u32 buffer, u32 offset, u32 value) {
keys.insert_or_assign({buffer, offset}, value);
}
void Registry::InsertBoundSampler(u32 offset, SamplerDescriptor sampler) {
bound_samplers.insert_or_assign(offset, sampler);
}
void Registry::InsertBindlessSampler(u32 buffer, u32 offset, SamplerDescriptor sampler) {
bindless_samplers.insert_or_assign({buffer, offset}, sampler);
}
bool Registry::IsConsistent() const {
if (!engine) {
return true;
}
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 Registry::HasEqualKeys(const Registry& rhs) const {
return std::tie(keys, bound_samplers, bindless_samplers) ==
std::tie(rhs.keys, rhs.bound_samplers, rhs.bindless_samplers);
}
const GraphicsInfo& Registry::GetGraphicsInfo() const {
ASSERT(stage != Tegra::Engines::ShaderType::Compute);
return graphics_info;
}
const ComputeInfo& Registry::GetComputeInfo() const {
ASSERT(stage == Tegra::Engines::ShaderType::Compute);
return compute_info;
}
} // namespace VideoCommon::Shader
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