Arquivos da etiqueta: technical

_{Stars BG Image Credit: NASA, ESA, and D. Gouliermis (University of Heidelberg). Acknowledgement: Luca Limatola. Edited by MayImilae.}

In the early 1990s, the world found itself at a crossroads of technological change. Electronic entertainment was blowing up just about everywhere, with Nintendo at the forefront of the home video game markets with their Super Nintendo Entertainment System console and Game Boy handheld. But if you were forced into an extended stay at the hospital, you might not have access to any of it. Due to a wave of concerns surrounding electromagnetic interference (EMI) from electronics, many consumer devices were banned from hospitals. If you were lucky enough to have a cell phone at the time, you'd have to go outside of the hospital to make calls.

In 1992, the Starlight Children's Foundation partnered with Nintendo to bring video games into hospitals in a way that complied with stringent hospital regulations. Instead of subjecting children to magazines, books, and daytime television (if they were lucky), the foundation wanted to bring premiere entertainment right into their rooms by creating a hospital approved all-in-one media and gaming station. Their belief was that giving kids a well-needed break from the hardships of treatment, injury, and illness would promote recovery.

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The Dolphin Blog is full of stories surrounding games, their development, and the challenges they present to emulate them. And in these stories, we sometimes have some recurring characters that we gain a better understanding of over time. Factor 5 and their Star Wars: Rogue Squadron games continue to amaze us time and time again as we find different ways that they push the hardware to its limits. The Legend of Zelda: The Wind Waker uses many graphical tricks to create a timeless style, that surprises again and again with just how much care was put into every detail. And, of course the Metroid Prime series shows up often given its sensitivity to even subtle changes to emulation.

However, as with every story, there have to be villains as well. One such villain is the The Disney Trio of Destruction™. For years, users have awaited the final showdown with these games. And guess what? They're finally playable right now. But are these games truly villains? Or were they just misunderstood? In this report, we dive into The Disney Trio of Destruction™ once and for all to determine their true nature.

Not every returning character is a game. Sometimes we also have to deal with our own issues, such as Dual Core mode. It is constantly breaking games, disabled in many popular games by default, and the source of most crashes in Dolphin. But is Dual Core really a hack? Or is Dolphin simply doing something wrong. In this report, we'll dive into the history of Dual Core and make a change that was long overdue.

On top of all of this, several longstanding features in Dolphin also saw some major upgrades, and we'll also get to those throughout the Dolphin Progress Report. With that, let us begin.

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Dolphin 2412 is here and we've got the details for what's new in the latest release. The biggest thing to note is that there's a lot of polishing to help make playing games a little more pleasant. Several key fixes to Dolphin's HLE audio helps bring a few more games toward audio perfection, and adjustments to Dolphin's CPU <-> GPU syncing reduces the number of harmless, but annoying, popup errors that happen in certain games.

That isn't to say there aren't any titles seeing significant improvements. LIT (School of Darkness) had a unique problem that exposed yet another unemulated hardware behavior. And if you're looking for a deep dive into problematic behavior in a game? We have one of those as well. Eternal Darkness has been a thorn in our side the past couple of months and required some special attention to get working again in time for this release.

For details on all that and more, join us for Release 2412's Notable Changes!

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After an exciting round of feature articles, it's Progress Report time once again! However, a lot has changed. Dolphin has finally left the 5.0 era behind, and has entered the Release Era. Not only did we get our first release in eight years, but we also established a commitment to continuous releases going forward.

For the Reports, things will be more or less the same, but with a few changes.

Progress Reports are now also release changelogs. We'll be going over the notable additions and changes between each release in every Progress Report going forward, rather than within a range of dates. As such, the name of the Reports will reflect the release accompanying it - if you want the new features, just update to the version at the top or higher and you'll have them! (However, since 2407 had a release article without a changelog, this Report will be covering the changes in both Release 2407 and Release 2409.)

That also means that the next release is happening right now! Accompanying this report is Dolphin 2409. It is now rolling out via our updater, and is available for download here on our website.

But there was also another feature article since our last Report. Dolphin now has RetroAchievements support!

For those waiting for it to show up in a release build, the wait is now over. Throughout the past couple of months, we've ironed out one major issue alongside many smaller issues with RetroAchievements. The first iteration of RetroAchievements in a release build is stable, but not all that flashy. The groundwork is there for future improvements, but many features and options are yet to be finished. As well, Android support is still deadlocked with a few issues. Please pardon our progress!

We have a bunch of cool statistics from the RetroAchievements team regarding the launch, however, we need to get on with the Report! So just click this handy link to be taken to the bottom of the Report if you'd like to read more!

But before we get to the Notable Changes, we have a couple of things to cover.

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In late 2012, Dolphin moved to a brand new website - dolphin-emu.org. With complete control of our own home and infrastructure for the first time, we noticed the accessibility to users that it gave us. Not only did we get a new home, but we also got a platform, one that allowed us to communicate directly to our users! We used it to great effect, explaining big changes to the emulator such as tev_fixes_new, getting ahead of controversy when we removed the popular D3D9 graphics backend, calling out broken drivers, and more! The Dolphin Blog was born!

However, we quickly realized that while single dedicated articles were great for big changes, Dolphin was improving all the time and tons of important and/or interesting changes were being overlooked simply because they weren't "big enough" to warrant a feature article. We needed something that would let us cover the continuing development of the emulator. Something like, a periodical article filled with a collection of notable changes, so we could report on the progress of Dolphin within a set window of time. And after much experimentation, we built a format to fulfill this role, and released the first of its kind to the world on the 30th of April, 2014.

Ten years ago today, the first Dolphin Progress Report was launched! Since then, our blog has exploded in popularity, and tens of thousands of people read every Report! And in that time, we've made 79 Dolphin Progress Reports, with 797 Notable Changes, 54 special sections, and 301,807 words! Thanks for reading!

As the writers of the Dolphin blog, we are proud of what we have accomplished here. We've highlighted tons of cool changes, educated our users (and ourselves!) on how Dolphin works, we've helped reel in fresh talent for the emulator, we've helped people get into universities and launch their careers, and even helped a few people meet their life partners! Progress Reports have been so impactful, that they have reached far beyond Dolphin. The once novel concept of emulator Progress Reports has become a standard means of user communication throughout emulation!

But of course, ten years is a long time, and we've changed along the way and will continue to change over time. The Reports may grow or shrink, become more or less frequent, structure and style may change, and writers may come and go. And truth be told, this is hard, and we nearly reached the breaking point a few times along the way. But no matter what happens, as the writers of the Dolphin Blog, it is our goal and our hope that for as long there are Notable Changes being made to Dolphin, there will be Progress Reports to feature them!

Speaking of which, anniversary or not, this is a Progress Report. We have Notable Changes to cover! So without further ado, please enjoy the Tenth Anniversary Dolphin Progress Report, and the last Dolphin Progress Report of the 5.0 era.

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With the conclusion of the holiday season, it's time for us at the blog to get back to work. And this time around, we have a smattering of changes covering just about everything you could imagine. For those looking to enjoy some of the latest homebrew with DSP-HLE, Dolphin now has support for the latest homebrew microcodes! For retail games, we also have a minor update to the Zelda-HLE microcode to fix a missing effect that's long overdue.

In some more important news, for those of you having disk space issues when running Dolphin on Windows since the last beta, a fix is now available. And for those looking for the clearest picture possible, Dolphin's mipmap heuristic has been backed down to allow for higher resolution mipmaps across more textures. And of course, if you're wanting that perfect image, Custom Aspect Ratios will allow for easier use of ultra-widescreen hacks and more!

Add to all of that a huge bugfix for older revision Steam Decks, another chapter in the Bounding Box saga, seeing a classic in an all new way, and yet another chapter in broken GPU drivers, and you've got yourself a Dolphin Progress Report.

Enjoy.

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After a long wait, the Progress Report is back! This time it wasn't so much from a lack of content, but from a lack of content creators. The past three months had illnesses hit one of our writers and the other had a very challenging move. Even with these major hurdles jumped, we're not even close to 100% yet. It's been a battle to get caught up with all of the big changes to Dolphin the past couple of months and because of that this report is a tad late.

Needless to say, there's only one way to start catching up, and that's to get to digging through the past three months of Notable Changes. Enjoy!

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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.

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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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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Many gaming communities over the years have reached out to thank emulator developers for their efforts. Emulators are an important part of many classic game communities and give players access to features like netplay multiplayer, modding, and savestates, while also opening up the doors to enhancements not possible on console. Sometimes it's simply more convenient to use an emulator that runs on your desktop, tablet, or phone rather than to dig out and hook up the original console every time you want to play one of your favorite games. However, it's important to state that our relationship with gaming communities is mutual, and without the help of players and fans, there's no way we could handle maintaining a library of thousands of games.

In this Progress Report, the gaming communities were the direct catalyst to many of the changes. They went on difficult debugging adventures, caught small issues that would be invisible to anyone who wasn't extremely familiar with the game, and even came up with patches to make games friendlier to emulator enhancements. All of these contributions, even if it's not code, are appreciated and help make Dolphin what it is today.

So, without further delay, let's get started with the August Progress Report! Enjoy.

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