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// SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include <array>
#include <vector>
#include "common/scope_exit.h"
#include "video_core/dirty_flags.h"
#include "video_core/engines/maxwell_3d.h"
#include "video_core/macro/macro.h"
#include "video_core/macro/macro_hle.h"
#include "video_core/rasterizer_interface.h"
namespace Tegra {
namespace {
using HLEFunction = void (*)(Engines::Maxwell3D& maxwell3d, const std::vector<u32>& parameters);
// HLE'd functions
void HLE_771BB18C62444DA0(Engines::Maxwell3D& maxwell3d, const std::vector<u32>& parameters) {
const u32 instance_count = parameters[2] & maxwell3d.GetRegisterValue(0xD1B);
maxwell3d.regs.draw.topology.Assign(
static_cast<Tegra::Engines::Maxwell3D::Regs::PrimitiveTopology>(parameters[0] & 0x3ffffff));
maxwell3d.regs.global_base_instance_index = parameters[5];
maxwell3d.regs.global_base_vertex_index = parameters[3];
maxwell3d.regs.index_buffer.count = parameters[1];
maxwell3d.regs.index_buffer.first = parameters[4];
if (maxwell3d.ShouldExecute()) {
maxwell3d.Rasterizer().Draw(true, instance_count);
}
maxwell3d.regs.index_buffer.count = 0;
}
void HLE_0D61FC9FAAC9FCAD(Engines::Maxwell3D& maxwell3d, const std::vector<u32>& parameters) {
const u32 instance_count = (maxwell3d.GetRegisterValue(0xD1B) & parameters[2]);
maxwell3d.regs.vertex_buffer.first = parameters[3];
maxwell3d.regs.vertex_buffer.count = parameters[1];
maxwell3d.regs.global_base_instance_index = parameters[4];
maxwell3d.regs.draw.topology.Assign(
static_cast<Tegra::Engines::Maxwell3D::Regs::PrimitiveTopology>(parameters[0]));
if (maxwell3d.ShouldExecute()) {
maxwell3d.Rasterizer().Draw(false, instance_count);
}
maxwell3d.regs.vertex_buffer.count = 0;
}
void HLE_0217920100488FF7(Engines::Maxwell3D& maxwell3d, const std::vector<u32>& parameters) {
const u32 instance_count = (maxwell3d.GetRegisterValue(0xD1B) & parameters[2]);
const u32 element_base = parameters[4];
const u32 base_instance = parameters[5];
maxwell3d.regs.index_buffer.first = parameters[3];
maxwell3d.regs.vertex_id_base = element_base;
maxwell3d.regs.index_buffer.count = parameters[1];
maxwell3d.dirty.flags[VideoCommon::Dirty::IndexBuffer] = true;
maxwell3d.regs.global_base_vertex_index = element_base;
maxwell3d.regs.global_base_instance_index = base_instance;
maxwell3d.CallMethod(0x8e3, 0x640, true);
maxwell3d.CallMethod(0x8e4, element_base, true);
maxwell3d.CallMethod(0x8e5, base_instance, true);
maxwell3d.regs.draw.topology.Assign(
static_cast<Tegra::Engines::Maxwell3D::Regs::PrimitiveTopology>(parameters[0]));
if (maxwell3d.ShouldExecute()) {
maxwell3d.Rasterizer().Draw(true, instance_count);
}
maxwell3d.regs.vertex_id_base = 0x0;
maxwell3d.regs.index_buffer.count = 0;
maxwell3d.regs.global_base_vertex_index = 0x0;
maxwell3d.regs.global_base_instance_index = 0x0;
maxwell3d.CallMethod(0x8e3, 0x640, true);
maxwell3d.CallMethod(0x8e4, 0x0, true);
maxwell3d.CallMethod(0x8e5, 0x0, true);
}
// Multidraw Indirect
void HLE_3F5E74B9C9A50164(Engines::Maxwell3D& maxwell3d, const std::vector<u32>& parameters) {
SCOPE_EXIT({
// Clean everything.
maxwell3d.regs.vertex_id_base = 0x0;
maxwell3d.regs.index_buffer.count = 0;
maxwell3d.regs.global_base_vertex_index = 0x0;
maxwell3d.regs.global_base_instance_index = 0x0;
maxwell3d.CallMethod(0x8e3, 0x640, true);
maxwell3d.CallMethod(0x8e4, 0x0, true);
maxwell3d.CallMethod(0x8e5, 0x0, true);
maxwell3d.dirty.flags[VideoCommon::Dirty::IndexBuffer] = true;
});
const u32 start_indirect = parameters[0];
const u32 end_indirect = parameters[1];
if (start_indirect >= end_indirect) {
// Nothing to do.
return;
}
const auto topology =
static_cast<Tegra::Engines::Maxwell3D::Regs::PrimitiveTopology>(parameters[2]);
maxwell3d.regs.draw.topology.Assign(topology);
const u32 padding = parameters[3];
const std::size_t max_draws = parameters[4];
const u32 indirect_words = 5 + padding;
const std::size_t first_draw = start_indirect;
const std::size_t effective_draws = end_indirect - start_indirect;
const std::size_t last_draw = start_indirect + std::min(effective_draws, max_draws);
for (std::size_t index = first_draw; index < last_draw; index++) {
const std::size_t base = index * indirect_words + 5;
const u32 num_vertices = parameters[base];
const u32 instance_count = parameters[base + 1];
const u32 first_index = parameters[base + 2];
const u32 base_vertex = parameters[base + 3];
const u32 base_instance = parameters[base + 4];
maxwell3d.regs.index_buffer.first = first_index;
maxwell3d.regs.vertex_id_base = base_vertex;
maxwell3d.regs.index_buffer.count = num_vertices;
maxwell3d.regs.global_base_vertex_index = base_vertex;
maxwell3d.regs.global_base_instance_index = base_instance;
maxwell3d.CallMethod(0x8e3, 0x640, true);
maxwell3d.CallMethod(0x8e4, base_vertex, true);
maxwell3d.CallMethod(0x8e5, base_instance, true);
maxwell3d.dirty.flags[VideoCommon::Dirty::IndexBuffer] = true;
if (maxwell3d.ShouldExecute()) {
maxwell3d.Rasterizer().Draw(true, instance_count);
}
}
}
constexpr std::array<std::pair<u64, HLEFunction>, 4> hle_funcs{{
{0x771BB18C62444DA0, &HLE_771BB18C62444DA0},
{0x0D61FC9FAAC9FCAD, &HLE_0D61FC9FAAC9FCAD},
{0x0217920100488FF7, &HLE_0217920100488FF7},
{0x3F5E74B9C9A50164, &HLE_3F5E74B9C9A50164},
}};
class HLEMacroImpl final : public CachedMacro {
public:
explicit HLEMacroImpl(Engines::Maxwell3D& maxwell3d_, HLEFunction func_)
: maxwell3d{maxwell3d_}, func{func_} {}
void Execute(const std::vector<u32>& parameters, u32 method) override {
func(maxwell3d, parameters);
}
private:
Engines::Maxwell3D& maxwell3d;
HLEFunction func;
};
} // Anonymous namespace
HLEMacro::HLEMacro(Engines::Maxwell3D& maxwell3d_) : maxwell3d{maxwell3d_} {}
HLEMacro::~HLEMacro() = default;
std::unique_ptr<CachedMacro> HLEMacro::GetHLEProgram(u64 hash) const {
const auto it = std::find_if(hle_funcs.cbegin(), hle_funcs.cend(),
[hash](const auto& pair) { return pair.first == hash; });
if (it == hle_funcs.end()) {
return nullptr;
}
return std::make_unique<HLEMacroImpl>(maxwell3d, it->second);
}
} // namespace Tegra
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