Archiwum taga: mac

Dolphin Progress Report: September, October, and November 2022

As we hit the holiday season, our Progress Report might be considered a bit late. A two month report became a three month report as we realized just how much work we had to catch up on. While the usual summer burst of activity didn't come, it seems instead everyone poured their time in throughout the autumn months! There's so many features, performance improvements, quality of life updates, and more that had to be considered.

We're going to have to skip out on some of the smaller updates this time around because there are so many big hitters. For instance, if you hate shader stuttering, Dolphin's Ubershaders have gotten a new tool that helps smooth out issues on Vulkan, D3D12, and Metal thanks to Dynamic Vertex Loaders that help reduce/remove pipeline compiles during gameplay.

If you're on a weaker device that stays away from Ubershaders... maybe after these optimizations you might finally be able to make the leap. Raw performance in Dolphin is up across the board thanks to many optimizations to the GPU emulation thread (which is emulated on CPU). Because this optimization affects the very core of Dolphin, pretty much every game should be faster, with a few select games seeing improvements of roughly 50%!

If you're looking to play with friends, we have some good news on that front as well. Dolphin's "experimental" Wii Remote Netplay support has finally received some much needed attention that may help it break free of that experimental moniker in the coming months.

And, for our Android users, a lot of the performance improvements also affect tablets and phones, but we also have a special treat only for you. The Android GUI has also seen a huge overhaul that should make it easier to use and easier on the eyes. And for those having problems with particular games using features Dolphin can't reasonably emulate, we have a few presents from an old friend to patch them up.

We could go on and on, but you know what time it is. Please enjoy these Notable Changes!

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Dolphin Progress Report: November and December 2021, January 2022

This year, we've hit an important milestone that's been in the works for nearly a decade. In late 2012, Sonicadvance1 began work on Dolphin's ARM JIT. Back then, there weren't any devices that had even a sliver of hope of running Dolphin close to full speed, but that wasn't really the goal. All he wanted to do was see if it could be done; it sounded like a fun, challenging project. However, as time passed the idea turned into more than just a passing curiosity. Users were more than happy to donate to cover the hardware cost of staying on the bleeding edge of a rapidly evolving ecosystem, allowing ARM development to flourish. By 2015, Sonicadvance1 astounded developers and the community alike with footage of Mario Kart: Double Dash!!'s time trial mode running close to full speed.

We've come a long way.

On that note, we're happy to announce that Dolphin's AArch64 JIT has finally reached feature parity with Dolphin's x86-64 JIT. This means that every PowerPC instruction that the x86-64 JIT supports along with every major JIT feature are now supported in the AArch64 JIT! And this is a great time for ARM in general, with each generation of processor pushing the boundaries and companies like Apple adopting the architecture for larger and higher power devices like their M1 Mac line. For those on mobile phones and tablets, Adreno powered devices provide decent enough graphics drivers to get a reasonable experience at this point. And with a critical bottleneck getting fixed just days ago, performance on Adreno GPUs has skyrocketed. You won't have to scroll far for that news, we promise.

But that's only the tip of the iceberg; we've had three months worth of changes pile up and some other important infrastructure news. We've improved the user experience on macOS significantly and restored support for older devices. In fact, enough has happened that we'll be detailing the status of Dolphin's macOS support near the end of the report.

And... we haven't even talked about any emulation fixes yet. The past three months have had tons of changes that would have normally been the highlight of a Progress Report. The three month gap between reports was not because of a lack of changes. Want to take Riivolution games on netplay? You can. Hate the EA VP6 bugs? Make them a thing of the past with a new option. Wish your favorite LogicOp game worked on GLES or MoltenVK? Odds are, it does now! The list goes on, but outlining everything would take way too long, so let's just dive in. Please enjoy the November, December, and January Progress Report!

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Dolphin Progress Report: September and October 2021

It's the beginning of the month and time for another Dolphin Progress Report! ...That line doesn't exactly work when it's midway through the month, huh? This Progress Report ended up being a very technically challenging report to write with several huge rabbit holes that go through the history of Dolphin and the games themselves. The first rabbit hole showcases TMEM, the GameCube and Wii's texture cache. Dolphin's approach to emulating this bit of the hardware has been to effectively ignore it exists. Trying to even begin to rectify the problems with this approach and explain the reasoning behind why it sort of wasn't emulated go very, very deep. This Progress Report also contains collaboration with the PCSX2 development team as they helped us understand some of the behaviors of Floating Point Math on the PlayStation 2. The fact that the PlayStation 2's floating point behaviors mattered to us for this Progress Report should tell you the kinds of things we were up against when writing up the changes.

If that wasn't enough, Dolphin also welcomed support for a wealth of mods through support for Riivolution. An easy to use GUI for launching Riivolution mods was added both to desktop Dolphin builds and Android. Speaking of Android, users may have noticed we pushed out an early beta last month. This beta was mostly to showcase and let users on the Play Store try out the newly finished Cheat GUI! We'll finally showcase that after a lengthy delay between when that extra beta was pushed and this Progress Report. While it's not related to Dolphin directly, Apple released the new M1 Max and we got our hands on one to see how it stacks up against the M1 with some rather interesting performance numbers at the end of the report.

With that out of the way, there's no point in delaying things any further. Please enjoy these rather lengthy Notable Changes!

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Dolphin Progress Report: June and July 2021

Emulation is often seen as this suspect gray area of gaming that is tolerated but always on the edge. There's a lot of negativity and questions around the merit and purpose of emulation. In contrast to that narrative, the overwhelmingly positive reaction to some of the features added the last few months, including heartfelt reactions from users, make all of the challenges and struggles so much easier.

As we drift further from the heyday of the GameCube and Wii, we've been seeing a greater impact not only on the past generations of gamers, but the current one. It was heartwarming to see long-time users able to play Four Swords Adventures with their kids or friends across the world. The gratitude we received from users finally able to try previously hard-to-access features in their favorite games was so appreciated. We love these games and consoles the same as you, and we want to make sure that they live on.

Sometimes with all the negativity in emulation, it's refreshing to have something that makes both the developers and the users happy. And while we'd love to revel in past accomplishments, there's still so much more work to be done. We graciously thank everyone for their kind words over the past few months, and hope you continue to enjoy using Dolphin Emulator. With that said, it is about time that we get started with the June and July Progress Report.

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Temptation of the Apple: Dolphin on macOS M1

From the announcement made on November 10th, 2020, users have had high hopes for the new Apple M1 devices. With its powerful Apple Silicon processor smashing benchmarks all over the place, users and developers were both asking if a native Dolphin build would be possible. Now we have the answer.

Apple's M1 hardware is incredibly powerful and excels at running Dolphin. This announcement has been in the works for some time, eagle eyed users may have noticed that earlier this month macOS builds were now being designated as "Intel". That's because …

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Dolphin Progress Report: February and March 2020

We understand that the past few months have been trying for many of us across the world. Something like this can make what you do feel so very small in the grand scheme of things. Everyone has their ways of coping with isolation, using the internet, games, emulation, and much more as forms of entertainment to keep spirits up. To those of you relying on Dolphin Emulator, we hope that Dolphin Emulator makes your day a little brighter in these trying times.

In this Progress Report, you'll find that we've got a lot of changes affecting things outside of core emulation. For instance, Dolphin on Android and macOS see the return of Dark Mode, perfect for late night gaming without straining your eyes. But if we're going to talk about the main event, we have a new way to use your Wii Remotes that brings tremendous flexibility. People that were disappointed by the removal of Hybrid Wii Remotes, forced Wii Remote disconnections on Save/Loadstates, and other limitations of Real Wii Remotes should be very excited. With two months of changes to get through, it's about time we just dived in. Please enjoy the February and March Progress Report!

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Dolphin Progress Report: February and March and April 2019

The last few months have been absolutely hectic, with several long-awaited features hitting the emulator all at once. In order to keep users up to date with these major changes, the blog staff has been busy with feature article after feature article. It has been exciting, but also pretty exhausting! With us burning the candle at both ends to keep up with development, the Progress Reports have fallen a bit behind.

So here were are, bleary eyed and with three months worth of changes to go through. So without further delay, let's go through February, March, and April's Notable Changes! Please enjoy while we go collapse in the corner.

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Dolphin Progress Report: November 2018

Even though the Wii's official library is mostly set, both the GameCube and Wii are entering a new golden age as a popular environment for randomizers, full-game mods, incredible cheat codes, and much more. Stalwarts like the Super Smash Bros. Brawl Mod, Project M have been around for years, but now there are many other communities around various games breathing new life into them. You can find codes to help balance games like Mario Party 5, content mods for Kirby Air Ride that add tons of new rides and hundreds of songs, and trackpacks for Mario Kart Wii that add hundreds of custom tracks to the game. Wiimmfi's also provides their own backup Wi-Fi servers for many unmodified games and their Mario Kart mods!

While most of these mods can be enjoyed on a hacked Wii, many users rely on Dolphin in order to play them. Emulating these mods can be quite the challenge, as they often will do things in ways that game developers would not. Assumptions that Dolphin makes can often be broken and certain features that mod developers use can be extremely slow or downright unreasonable to emulate. In the case of Wiimmfi's Mario Kart Fun Packs, the mod creators have put in work over the years to improve their experience in Dolphin and even support emulated users playing alongside console users online... so long as you're willing to dump and use your Wii's NAND. Earlier this month, a slight change to Wiimmfi's online networking broke Dolphin support without affecting real Wii Consoles. Not wanting to leave their emulated users high and dry, they reported the bug to us.

delroth quickly took up the mantle of investigating the bug with assistance from the Wiimmfi team. Within a few hours, the cooperation paid off as the list of probable causes was narrowed down to one annoying feature: The Instruction Cache. Dolphin pretty much has no ability to emulate the GC/Wii CPU data cache and likely never will due to the performance implications, but Dolphin does have some ability to emulate the instruction cache, though it's best to avoid testing the emulator. This is normally not a problem with retail games because it's rather bad form for a game to rely excessively on cache quirks, unless they were intentionally trying to break an emulator. There are occasionally games that inadvertently rely on cache behavior, that's something to tackle on another day. Dolphin's emulation of the instruction cache is normally good enough and almost nothing relies on data cache.

Mods are different; developers are usually working on a blackbox and don't have the same level of familiarity with the hardware. Unless they specifically tested codes on both Dolphin and Wii, there's a chance they wouldn't even know something was broken. There have been many issues reported around mods that, while Dolphin is at fault, we really don't have any recourse for the users afflicted. If a mod doesn't care about running on Dolphin and uses dcache or perhaps another annoying feature, there isn't much we can do but shrug it off.

In the case of Wiimmfi's server, through cooperation from both sides, we were able to find the cache coherency issue and fix it serverside! Users who already have the latest version of the mod don't have to do anything except try to connect. If you're looking for a more detailed explanation of what was going wrong (as it's rather interesting,) you can find delroth's full writeup on the issue tracker.

In order to track down behavior like this in the future, delroth also added game quirk reporting to Dolphin's data collection service, so Dolphin will now automatically let us know what games are instruction cache sensitive in the manner that broke this particular mod. With that, we also have a lot of other exciting changes this month, so now it's time to dive into this month's notable changes!

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