Zelda64Recomp/ultramodern/rt64_layer.cpp

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#include <memory>
#include <cstring>
// #include <Windows.h>
#define HLSL_CPU
#include "hle/rt64_application.h"
#include "rt64_layer.h"
#include "rt64_render_hooks.h"
ultramodern::RT64Context::~RT64Context() = default;
static RT64::UserConfiguration::Antialiasing device_max_msaa = RT64::UserConfiguration::Antialiasing::None;
static bool sample_positions_supported = false;
static uint8_t DMEM[0x1000];
static uint8_t IMEM[0x1000];
unsigned int MI_INTR_REG = 0;
unsigned int DPC_START_REG = 0;
unsigned int DPC_END_REG = 0;
unsigned int DPC_CURRENT_REG = 0;
unsigned int DPC_STATUS_REG = 0;
unsigned int DPC_CLOCK_REG = 0;
unsigned int DPC_BUFBUSY_REG = 0;
unsigned int DPC_PIPEBUSY_REG = 0;
unsigned int DPC_TMEM_REG = 0;
unsigned int VI_STATUS_REG = 0;
unsigned int VI_ORIGIN_REG = 0;
unsigned int VI_WIDTH_REG = 0;
unsigned int VI_INTR_REG = 0;
unsigned int VI_V_CURRENT_LINE_REG = 0;
unsigned int VI_TIMING_REG = 0;
unsigned int VI_V_SYNC_REG = 0;
unsigned int VI_H_SYNC_REG = 0;
unsigned int VI_LEAP_REG = 0;
unsigned int VI_H_START_REG = 0;
unsigned int VI_V_START_REG = 0;
unsigned int VI_V_BURST_REG = 0;
unsigned int VI_X_SCALE_REG = 0;
unsigned int VI_Y_SCALE_REG = 0;
void dummy_check_interrupts() {
}
RT64::UserConfiguration::Antialiasing compute_max_supported_aa(RT64::RenderSampleCounts bits) {
if (bits & RT64::RenderSampleCount::Bits::COUNT_2) {
if (bits & RT64::RenderSampleCount::Bits::COUNT_4) {
if (bits & RT64::RenderSampleCount::Bits::COUNT_8) {
return RT64::UserConfiguration::Antialiasing::MSAA8X;
}
return RT64::UserConfiguration::Antialiasing::MSAA4X;
}
return RT64::UserConfiguration::Antialiasing::MSAA2X;
};
return RT64::UserConfiguration::Antialiasing::None;
}
void set_application_user_config(RT64::Application* application, const ultramodern::GraphicsConfig& config) {
switch (config.res_option) {
default:
case ultramodern::Resolution::Auto:
application->userConfig.resolution = RT64::UserConfiguration::Resolution::WindowIntegerScale;
application->userConfig.downsampleMultiplier = 1;
break;
case ultramodern::Resolution::Original:
application->userConfig.resolution = RT64::UserConfiguration::Resolution::Manual;
application->userConfig.resolutionMultiplier = config.ds_option;
application->userConfig.downsampleMultiplier = config.ds_option;
break;
case ultramodern::Resolution::Original2x:
application->userConfig.resolution = RT64::UserConfiguration::Resolution::Manual;
application->userConfig.resolutionMultiplier = 2.0 * config.ds_option;
application->userConfig.downsampleMultiplier = config.ds_option;
break;
}
switch (config.hr_option) {
default:
case ultramodern::HUDRatioMode::Original:
application->userConfig.extAspectRatio = RT64::UserConfiguration::AspectRatio::Original;
break;
case ultramodern::HUDRatioMode::Clamp16x9:
application->userConfig.extAspectRatio = RT64::UserConfiguration::AspectRatio::Manual;
application->userConfig.extAspectTarget = 16.0/9.0;
break;
case ultramodern::HUDRatioMode::Full:
application->userConfig.extAspectRatio = RT64::UserConfiguration::AspectRatio::Expand;
break;
}
application->userConfig.aspectRatio = config.ar_option;
application->userConfig.antialiasing = config.msaa_option;
application->userConfig.refreshRate = config.rr_option;
application->userConfig.refreshRateTarget = config.rr_manual_value;
}
ultramodern::RT64Context::RT64Context(uint8_t* rdram, ultramodern::WindowHandle window_handle, bool debug) {
static unsigned char dummy_rom_header[0x40];
set_rt64_hooks();
// Set up the RT64 application core fields.
RT64::Application::Core appCore{};
#if defined(_WIN32)
appCore.window = window_handle.window;
#elif defined(__ANDROID__)
assert(false && "Unimplemented");
#elif defined(__linux__)
appCore.window.display = window_handle.display;
appCore.window.window = window_handle.window;
#endif
appCore.checkInterrupts = dummy_check_interrupts;
appCore.HEADER = dummy_rom_header;
appCore.RDRAM = rdram;
appCore.DMEM = DMEM;
appCore.IMEM = IMEM;
appCore.MI_INTR_REG = &MI_INTR_REG;
appCore.DPC_START_REG = &DPC_START_REG;
appCore.DPC_END_REG = &DPC_END_REG;
appCore.DPC_CURRENT_REG = &DPC_CURRENT_REG;
appCore.DPC_STATUS_REG = &DPC_STATUS_REG;
appCore.DPC_CLOCK_REG = &DPC_CLOCK_REG;
appCore.DPC_BUFBUSY_REG = &DPC_BUFBUSY_REG;
appCore.DPC_PIPEBUSY_REG = &DPC_PIPEBUSY_REG;
appCore.DPC_TMEM_REG = &DPC_TMEM_REG;
appCore.VI_STATUS_REG = &VI_STATUS_REG;
appCore.VI_ORIGIN_REG = &VI_ORIGIN_REG;
appCore.VI_WIDTH_REG = &VI_WIDTH_REG;
appCore.VI_INTR_REG = &VI_INTR_REG;
appCore.VI_V_CURRENT_LINE_REG = &VI_V_CURRENT_LINE_REG;
appCore.VI_TIMING_REG = &VI_TIMING_REG;
appCore.VI_V_SYNC_REG = &VI_V_SYNC_REG;
appCore.VI_H_SYNC_REG = &VI_H_SYNC_REG;
appCore.VI_LEAP_REG = &VI_LEAP_REG;
appCore.VI_H_START_REG = &VI_H_START_REG;
appCore.VI_V_START_REG = &VI_V_START_REG;
appCore.VI_V_BURST_REG = &VI_V_BURST_REG;
appCore.VI_X_SCALE_REG = &VI_X_SCALE_REG;
appCore.VI_Y_SCALE_REG = &VI_Y_SCALE_REG;
// Set up the RT64 application configuration fields.
RT64::ApplicationConfiguration appConfig;
appConfig.useConfigurationFile = false;
// Create the RT64 application.
app = std::make_unique<RT64::Application>(appCore, appConfig);
// Set initial user config settings based on the current settings.
ultramodern::GraphicsConfig cur_config = ultramodern::get_graphics_config();
set_application_user_config(app.get(), cur_config);
app->userConfig.developerMode = debug;
// Force gbi depth branches to prevent LODs from kicking in.
app->enhancementConfig.f3dex.forceBranch = true;
// Scale LODs based on the output resolution.
app->enhancementConfig.textureLOD.scale = true;
// Pick an API if the user has set an override.
switch (cur_config.api_option) {
case ultramodern::GraphicsApi::D3D12:
app->userConfig.graphicsAPI = RT64::UserConfiguration::GraphicsAPI::D3D12;
break;
case ultramodern::GraphicsApi::Vulkan:
app->userConfig.graphicsAPI = RT64::UserConfiguration::GraphicsAPI::Vulkan;
break;
default:
case ultramodern::GraphicsApi::Auto:
// Don't override if auto is selected.
break;
}
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// Set up the RT64 application.
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uint32_t thread_id = 0;
#ifdef _WIN32
thread_id = window_handle.thread_id;
#endif
if (app->setup(thread_id) != RT64::Application::SetupResult::Success) {
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app = nullptr;
return;
}
// Set the application's fullscreen state.
app->setFullScreen(cur_config.wm_option == ultramodern::WindowMode::Fullscreen);
// Check if the selected device actually supports MSAA sample positions and MSAA for for the formats that will be used
// and downgrade the configuration accordingly.
if (app->device->getCapabilities().sampleLocations) {
RT64::RenderSampleCounts color_sample_counts = app->device->getSampleCountsSupported(RT64::RenderFormat::R8G8B8A8_UNORM);
RT64::RenderSampleCounts depth_sample_counts = app->device->getSampleCountsSupported(RT64::RenderFormat::D32_FLOAT);
RT64::RenderSampleCounts common_sample_counts = color_sample_counts & depth_sample_counts;
device_max_msaa = compute_max_supported_aa(common_sample_counts);
sample_positions_supported = true;
}
else {
device_max_msaa = RT64::UserConfiguration::Antialiasing::None;
sample_positions_supported = false;
}
}
void ultramodern::RT64Context::send_dl(const OSTask* task) {
app->state->rsp->reset();
app->interpreter->loadUCodeGBI(task->t.ucode & 0x3FFFFFF, task->t.ucode_data & 0x3FFFFFF, true);
app->processDisplayLists(app->core.RDRAM, task->t.data_ptr & 0x3FFFFFF, 0, true);
}
void ultramodern::RT64Context::update_screen(uint32_t vi_origin) {
VI_ORIGIN_REG = vi_origin;
app->updateScreen();
}
void ultramodern::RT64Context::shutdown() {
if (app != nullptr) {
app->end();
}
}
void ultramodern::RT64Context::update_config(const ultramodern::GraphicsConfig& old_config, const ultramodern::GraphicsConfig& new_config) {
if (new_config.wm_option != old_config.wm_option) {
app->setFullScreen(new_config.wm_option == ultramodern::WindowMode::Fullscreen);
}
set_application_user_config(app.get(), new_config);
app->updateUserConfig(true);
if (new_config.msaa_option != old_config.msaa_option) {
app->updateMultisampling();
}
}
void ultramodern::RT64Context::enable_instant_present() {
// Enable the present early presentation mode for minimal latency.
app->enhancementConfig.presentation.mode = RT64::EnhancementConfiguration::Presentation::Mode::PresentEarly;
app->updateEnhancementConfig();
}
uint32_t ultramodern::RT64Context::get_display_framerate() {
return app->presentQueue->ext.sharedResources->swapChainRate;
}
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void ultramodern::RT64Context::load_shader_cache(std::span<const char> cache_binary) {
// TODO figure out how to avoid a copy here.
std::istringstream cache_stream{std::string{cache_binary.data(), cache_binary.size()}};
if (!app->rasterShaderCache->loadOfflineList(cache_stream)) {
printf("Failed to preload shader cache!\n");
assert(false);
}
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}
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RT64::UserConfiguration::Antialiasing ultramodern::RT64MaxMSAA() {
return device_max_msaa;
}
bool ultramodern::RT64SamplePositionsSupported() {
return sample_positions_supported;
}