skyline/app/src/main/cpp/skyline/gpu/presentation_engine.cpp
PixelyIon 8ceed74371 Vulkan Instance + Validation Layer + Debug Report Initialization
The GPU class has been extended in this for Vulkan initialization, this is done to the point of initializing the instance alongside loading in `VK_LAYER_KHRONOS_validation` which is also now packed into all Debug APKs for Skyline. In addition, `VK_EXT_debug_report` is also initialized and it's output is piped directly into the Logger. 

A minor change regarding the type of the `Fps` and `Frametime` globals was changed to `skyline::i32`s which is a more suitable type due to those having a smaller chance of overflowing while being signed as Java doesn't have unsigned integral types.
2021-07-12 21:27:49 +05:30

91 lines
3.6 KiB
C++

// SPDX-License-Identifier: MPL-2.0
// Copyright © 2020 Skyline Team and Contributors (https://github.com/skyline-emu/)
#include <android/native_window_jni.h>
#include "jvm.h"
#include "presentation_engine.h"
extern skyline::i32 Fps;
extern skyline::i32 FrameTime;
namespace skyline::gpu {
PresentationEngine::PresentationEngine(const DeviceState &state) : state(state), vsyncEvent(std::make_shared<kernel::type::KEvent>(state, true)), bufferEvent(std::make_shared<kernel::type::KEvent>(state, true)), presentationTrack(static_cast<u64>(trace::TrackIds::Presentation), perfetto::ProcessTrack::Current()) {
auto desc{presentationTrack.Serialize()};
desc.set_name("Presentation");
perfetto::TrackEvent::SetTrackDescriptor(presentationTrack, desc);
}
PresentationEngine::~PresentationEngine() {
if (window)
ANativeWindow_release(window);
auto env{state.jvm->GetEnv()};
if (!env->IsSameObject(surface, nullptr))
env->DeleteGlobalRef(surface);
}
void PresentationEngine::UpdateSurface(jobject newSurface) {
std::lock_guard lock(windowMutex);
auto env{state.jvm->GetEnv()};
if (!env->IsSameObject(surface, nullptr)) {
env->DeleteGlobalRef(surface);
surface = nullptr;
}
if (!env->IsSameObject(newSurface, nullptr))
surface = env->NewGlobalRef(newSurface);
if (surface) {
window = ANativeWindow_fromSurface(env, surface);
ANativeWindow_acquire(window);
resolution.width = static_cast<u32>(ANativeWindow_getWidth(window));
resolution.height = static_cast<u32>(ANativeWindow_getHeight(window));
format = ANativeWindow_getFormat(window);
windowConditional.notify_all();
} else {
window = nullptr;
}
}
void PresentationEngine::Present(const std::shared_ptr<Texture> &texture) {
std::unique_lock lock(windowMutex);
if (!window)
windowConditional.wait(lock, [this]() { return window; });
auto textureFormat{[&texture]() {
switch (texture->format.vkFormat) {
case vk::Format::eR8G8B8A8Unorm:
return WINDOW_FORMAT_RGBA_8888;
case vk::Format::eR5G6B5UnormPack16:
return WINDOW_FORMAT_RGB_565;
default:
throw exception("Cannot find corresponding Android surface format");
}
}()};
if (resolution != texture->dimensions || textureFormat != format) {
ANativeWindow_setBuffersGeometry(window, texture->dimensions.width, texture->dimensions.height, textureFormat);
resolution = texture->dimensions;
format = textureFormat;
}
ANativeWindow_Buffer buffer;
ARect rect;
ANativeWindow_lock(window, &buffer, &rect);
std::memcpy(buffer.bits, texture->backing.data(), texture->backing.size());
ANativeWindow_unlockAndPost(window);
vsyncEvent->Signal();
if (frameTimestamp) {
auto now{util::GetTimeNs()};
FrameTime = static_cast<u32>((now - frameTimestamp) / 10000); // frametime / 100 is the real ms value, this is to retain the first two decimals
Fps = static_cast<u16>(constant::NsInSecond / (now - frameTimestamp));
TRACE_EVENT_INSTANT("gpu", "Present", presentationTrack, "FrameTimeNs", now - frameTimestamp, "Fps", Fps);
frameTimestamp = now;
} else {
frameTimestamp = util::GetTimeNs();
}
}
}