Commit graph

33 commits

Author SHA1 Message Date
Lioncash
7b070bbf62 nvflinger: Mark interface functions with return values as [[nodiscard]]
Not using the return value of these functions are undeniably the source
of a bug. This way we allow compilers to loudly make any future misuses
evident.
2020-07-25 19:42:45 -04:00
Lioncash
5dab23e017 nvflinger: Use return value of Lock()
comex reported in #4424 that we were incorrectly discarding the return
value of Lock() which is correct.
2020-07-25 19:04:53 -04:00
Fernando Sahmkow
e486c66850 NvFlinger: Clang Format. 2020-06-27 11:36:30 -04:00
Fernando Sahmkow
272a87127a Services/NvFlinger: Do vSync in a sepparate thread on Multicore. 2020-06-27 11:36:20 -04:00
Fernando Sahmkow
cc3aa95926 NVFlinger: Lock race condition between CPU, Host Timing, VSync. 2020-06-27 11:35:18 -04:00
bunnei
64c5631579 service: vi: Implement CloseLayer.
- Needed for Undertale.
2020-01-04 00:45:06 -05:00
bunnei
ec0ce96c56
core_timing: Use better reference tracking for EventType. (#3159)
* core_timing: Use better reference tracking for EventType.

- Moves ownership of the event to the caller, ensuring we don't fire events for destroyed objects.
- Removes need for unique names - we won't be using this for save states anyways.
2019-11-26 21:48:56 -05:00
bunnei
9046d4a548
kernel: Replace usage of boost::intrusive_ptr with std::shared_ptr for kernel objects. (#3154)
* kernel: Replace usage of boost::intrusive_ptr with std::shared_ptr for kernel objects.

- See https://github.com/citra-emu/citra/pull/4710 for details.
2019-11-24 20:15:51 -05:00
David Marcec
bd1c4ec9a0 Rebase 2019-09-22 16:41:34 +10:00
David Marcec
d6e830d877 Deglobalize System: NvFlinger 2019-09-22 16:35:51 +10:00
Fernando Sahmkow
d20ede40b1 NVServices: Styling, define constructors as explicit and corrections 2019-07-05 15:49:32 -04:00
Fernando Sahmkow
ceb5f5079c nvflinger: Implement swap intervals 2019-07-05 15:49:08 -04:00
Lioncash
90528f1326 service/nvflinger: Store BufferQueue instances as regular data members
The NVFlinger service is already passed into services that need to
guarantee its lifetime, so the BufferQueue instances will already live
as long as they're needed. Making them std::shared_ptr instances in this
case is unnecessary.
2019-02-21 22:09:46 -05:00
Lioncash
fd15730767 service/vi/vi_layer: Convert Layer struct into a class
Like the previous changes made to the Display struct, this prepares the
Layer struct for changes to its interface. Given Layer will be given
more invariants in the future, we convert it into a class to better
signify that.
2019-02-21 12:13:09 -05:00
Lioncash
fa4dc2cf42 service/nvflinger: Move display specifics over to vi_display
With the display and layer structures relocated to the vi service, we
can begin giving these a proper interface before beginning to properly
support the display types.

This converts the display struct into a class and provides it with the
necessary functions to preserve behavior within the NVFlinger class.
2019-02-21 12:13:04 -05:00
Lioncash
8d5d369b54 service/nvflinger: Relocate definitions of Layer and Display to the vi service
These are more closely related to the vi service as opposed to the
intermediary nvflinger.

This also places them in their relevant subfolder, as future changes to
these will likely result in subclassing to represent various displays
and services, as they're done within the service itself on hardware.

The reasoning for prefixing the display and layer source files is to
avoid potential clashing if two files with the same name are compiled
(e.g. if 'display.cpp/.h' or 'layer.cpp/.h' is added to another service
at any point), which MSVC will actually warn against. This prevents that
case from occurring.

This also presently coverts the std::array introduced within
f45c25aaba back to a std::vector to allow
the forward declaration of the Display type. Forward declaring a type
within a std::vector is allowed since the introduction of N4510
(http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4510.html) by
Zhihao Yuan.
2019-02-19 18:27:16 -05:00
Lioncash
bd983414f6 core_timing: Convert core timing into a class
Gets rid of the largest set of mutable global state within the core.
This also paves a way for eliminating usages of GetInstance() on the
System class as a follow-up.

Note that no behavioral changes have been made, and this simply extracts
the functionality into a class. This also has the benefit of making
dependencies on the core timing functionality explicit within the
relevant interfaces.
2019-02-15 21:50:25 -05:00
Lioncash
48d9d66dc5 core_timing: Rename CoreTiming namespace to Core::Timing
Places all of the timing-related functionality under the existing Core
namespace to keep things consistent, rather than having the timing
utilities sitting in its own completely separate namespace.
2019-02-12 12:42:17 -05:00
Lioncash
ef073ff117 service/nvflinger,service/vi: Handle failure cases with exposed API
Converts many of the Find* functions to return a std::optional<T> as
opposed to returning the raw return values directly. This allows
removing a few assertions and handles error cases like the service
itself does.
2019-02-05 18:03:28 -05:00
Lioncash
7320c667df service/nvflinger: Mark FindVsyncEvent() as a const member function
This member function doesn't actually modify instance state, so it can
be marked as a const member function.
2019-02-05 15:57:29 -05:00
Lioncash
3c02cdcc57 service/nvflinger: Rename GetVsyncEvent() to FindVsyncEvent()
This was missed within #2075. Renames the member function to make it
consistent with the rest of the Find* functions.
2019-02-05 15:55:18 -05:00
Lioncash
ba14fb42e4 service/nvflinger: Make FindBufferQueueId() a const member function
This member function doesn't actually modify instance state, so it can
be const-qualified.
2019-01-30 11:14:08 -05:00
Lioncash
1d11def9c4 service/nvflinger: Rename Get prefix on function to Find
This more accurately describes what the function is actually attempting
to do (it's not a simple trivial getter).
2019-01-30 11:11:32 -05:00
Lioncash
7e92497402 nvflinger: Add the Null display
In addition to the default, external, EDID, and internal displays,
there's also a null display provided as well, which as the name
suggests, does nothing but discard all commands given to it. This is
provided for completeness.
2019-01-29 21:13:33 -05:00
Lioncash
f45c25aaba nvflinger: Use a std::array for the available displays instead of std::vector
The built-in set of displays is fixed, so we can utilize an array
instead of a vector here.
2019-01-29 21:13:33 -05:00
Zach Hilman
a342bcc9b1 kernel/event: Reference ReadableEvent from WritableEvent 2018-11-29 08:48:40 -05:00
Zach Hilman
ff610103b5 core: Port all current usages of Event to Readable/WritableEvent 2018-11-29 08:45:41 -05:00
Lioncash
6ac955a0b4 hle/service: Default constructors and destructors in the cpp file where applicable
When a destructor isn't defaulted into a cpp file, it can cause the use
of forward declarations to seemingly fail to compile for non-obvious
reasons. It also allows inlining of the construction/destruction logic
all over the place where a constructor or destructor is invoked, which
can lead to code bloat. This isn't so much a worry here, given the
services won't be created and destroyed frequently.

The cause of the above mentioned non-obvious errors can be demonstrated
as follows:

------- Demonstrative example, if you know how the described error happens, skip forwards -------

Assume we have the following in the header, which we'll call "thing.h":

\#include <memory>

// Forward declaration. For example purposes, assume the definition
// of Object is in some header named "object.h"
class Object;

class Thing {
public:
    // assume no constructors or destructors are specified here,
    // or the constructors/destructors are defined as:
    //
    // Thing() = default;
    // ~Thing() = default;
    //

    // ... Some interface member functions would be defined here

private:
    std::shared_ptr<Object> obj;
};

If this header is included in a cpp file, (which we'll call "main.cpp"),
this will result in a compilation error, because even though no
destructor is specified, the destructor will still need to be generated by
the compiler because std::shared_ptr's destructor is *not* trivial (in
other words, it does something other than nothing), as std::shared_ptr's
destructor needs to do two things:

1. Decrement the shared reference count of the object being pointed to,
   and if the reference count decrements to zero,

2. Free the Object instance's memory (aka deallocate the memory it's
   pointing to).

And so the compiler generates the code for the destructor doing this inside main.cpp.

Now, keep in mind, the Object forward declaration is not a complete type. All it
does is tell the compiler "a type named Object exists" and allows us to
use the name in certain situations to avoid a header dependency. So the
compiler needs to generate destruction code for Object, but the compiler
doesn't know *how* to destruct it. A forward declaration doesn't tell
the compiler anything about Object's constructor or destructor. So, the
compiler will issue an error in this case because it's undefined
behavior to try and deallocate (or construct) an incomplete type and
std::shared_ptr and std::unique_ptr make sure this isn't the case
internally.

Now, if we had defaulted the destructor in "thing.cpp", where we also
include "object.h", this would never be an issue, as the destructor
would only have its code generated in one place, and it would be in a
place where the full class definition of Object would be visible to the
compiler.

---------------------- End example ----------------------------

Given these service classes are more than certainly going to change in
the future, this defaults the constructors and destructors into the
relevant cpp files to make the construction and destruction of all of
the services consistent and unlikely to run into cases where forward
declarations are indirectly causing compilation errors. It also has the
plus of avoiding the need to rebuild several services if destruction
logic changes, since it would only be necessary to recompile the single
cpp file.
2018-09-10 23:55:31 -04:00
Lioncash
d378d98e26 nvdrv: Get rid of global std::weak_ptr
Rather than use global state, we can simply pass the instance into the
NVFlinger instance directly.
2018-08-07 21:53:05 -04:00
Lioncash
e40b0cf437 nvflinger: Get rid of indirect inclusions 2018-08-07 08:32:05 -04:00
Lioncash
7e49881b7f nvflinger: Use std::string_view in OpenDisplay()
We don't need to use a std::string here, given all that's done is
comparing the character sequence against another. This allows passing
regular const char* without needing to heap allocate.
2018-08-07 08:32:06 -04:00
Lioncash
ccca5e7c28 service: Use nested namespace specifiers where applicable
Tidies up namespace declarations
2018-04-19 22:20:28 -04:00
Subv
8d7686ff8e VI: Move BufferQueue and NVFlinger to their own folder/namespace. 2018-01-22 11:54:58 -05:00