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// Copyright 2015 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <atomic>
#include <cmath>
#include <cstring>
#include <unordered_map>
#include <utility>
#include <boost/range/algorithm/fill.hpp>
#include "common/bit_field.h"
#include "common/hash.h"
#include "common/logging/log.h"
#include "common/microprofile.h"
#include "video_core/pica.h"
#include "video_core/pica_state.h"
#include "video_core/shader/shader.h"
#include "video_core/shader/shader_interpreter.h"
#ifdef ARCHITECTURE_x86_64
#include "video_core/shader/shader_jit_x64.h"
#endif // ARCHITECTURE_x86_64
#include "video_core/video_core.h"
namespace Pica {
namespace Shader {
OutputVertex OutputRegisters::ToVertex(const Regs::ShaderConfig& config) const {
// Setup output data
OutputVertex ret;
// TODO(neobrain): Under some circumstances, up to 16 attributes may be output. We need to
// figure out what those circumstances are and enable the remaining outputs then.
unsigned index = 0;
for (unsigned i = 0; i < 7; ++i) {
if (index >= g_state.regs.vs_output_total)
break;
if ((config.output_mask & (1 << i)) == 0)
continue;
const auto& output_register_map = g_state.regs.vs_output_attributes[index];
u32 semantics[4] = {output_register_map.map_x, output_register_map.map_y,
output_register_map.map_z, output_register_map.map_w};
for (unsigned comp = 0; comp < 4; ++comp) {
float24* out = ((float24*)&ret) + semantics[comp];
if (semantics[comp] != Regs::VSOutputAttributes::INVALID) {
*out = value[i][comp];
} else {
// Zero output so that attributes which aren't output won't have denormals in them,
// which would slow us down later.
memset(out, 0, sizeof(*out));
}
}
index++;
}
// The hardware takes the absolute and saturates vertex colors like this, *before* doing
// interpolation
for (unsigned i = 0; i < 4; ++i) {
ret.color[i] = float24::FromFloat32(std::fmin(std::fabs(ret.color[i].ToFloat32()), 1.0f));
}
LOG_TRACE(HW_GPU, "Output vertex: pos(%.2f, %.2f, %.2f, %.2f), quat(%.2f, %.2f, %.2f, %.2f), "
"col(%.2f, %.2f, %.2f, %.2f), tc0(%.2f, %.2f), view(%.2f, %.2f, %.2f)",
ret.pos.x.ToFloat32(), ret.pos.y.ToFloat32(), ret.pos.z.ToFloat32(),
ret.pos.w.ToFloat32(), ret.quat.x.ToFloat32(), ret.quat.y.ToFloat32(),
ret.quat.z.ToFloat32(), ret.quat.w.ToFloat32(), ret.color.x.ToFloat32(),
ret.color.y.ToFloat32(), ret.color.z.ToFloat32(), ret.color.w.ToFloat32(),
ret.tc0.u().ToFloat32(), ret.tc0.v().ToFloat32(), ret.view.x.ToFloat32(),
ret.view.y.ToFloat32(), ret.view.z.ToFloat32());
return ret;
}
#ifdef ARCHITECTURE_x86_64
static std::unordered_map<u64, std::unique_ptr<JitShader>> shader_map;
static const JitShader* jit_shader;
#endif // ARCHITECTURE_x86_64
void ClearCache() {
#ifdef ARCHITECTURE_x86_64
shader_map.clear();
#endif // ARCHITECTURE_x86_64
}
void ShaderSetup::Setup() {
#ifdef ARCHITECTURE_x86_64
if (VideoCore::g_shader_jit_enabled) {
u64 cache_key =
Common::ComputeHash64(&g_state.vs.program_code, sizeof(g_state.vs.program_code)) ^
Common::ComputeHash64(&g_state.vs.swizzle_data, sizeof(g_state.vs.swizzle_data));
auto iter = shader_map.find(cache_key);
if (iter != shader_map.end()) {
jit_shader = iter->second.get();
} else {
auto shader = std::make_unique<JitShader>();
shader->Compile();
jit_shader = shader.get();
shader_map[cache_key] = std::move(shader);
}
}
#endif // ARCHITECTURE_x86_64
}
MICROPROFILE_DEFINE(GPU_Shader, "GPU", "Shader", MP_RGB(50, 50, 240));
void ShaderSetup::Run(UnitState& state, const InputVertex& input, int num_attributes) {
auto& config = g_state.regs.vs;
auto& setup = g_state.vs;
MICROPROFILE_SCOPE(GPU_Shader);
// Setup input register table
const auto& attribute_register_map = config.input_register_map;
for (int i = 0; i < num_attributes; i++)
state.registers.input[attribute_register_map.GetRegisterForAttribute(i)] = input.attr[i];
state.conditional_code[0] = false;
state.conditional_code[1] = false;
#ifdef ARCHITECTURE_x86_64
if (VideoCore::g_shader_jit_enabled) {
jit_shader->Run(setup, state, config.main_offset);
} else {
DebugData<false> dummy_debug_data;
RunInterpreter(setup, state, dummy_debug_data, config.main_offset);
}
#else
DebugData<false> dummy_debug_data;
RunInterpreter(setup, state, dummy_debug_data, config.main_offset);
#endif // ARCHITECTURE_x86_64
}
DebugData<true> ShaderSetup::ProduceDebugInfo(const InputVertex& input, int num_attributes,
const Regs::ShaderConfig& config,
const ShaderSetup& setup) {
UnitState state;
DebugData<true> debug_data;
// Setup input register table
boost::fill(state.registers.input, Math::Vec4<float24>::AssignToAll(float24::Zero()));
const auto& attribute_register_map = config.input_register_map;
for (int i = 0; i < num_attributes; i++)
state.registers.input[attribute_register_map.GetRegisterForAttribute(i)] = input.attr[i];
state.conditional_code[0] = false;
state.conditional_code[1] = false;
RunInterpreter(setup, state, debug_data, config.main_offset);
return debug_data;
}
} // namespace Shader
} // namespace Pica
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