* If the machine idents differ in significant ways that we'd consider
it to be a different platform (currently just OS), and if so mark it
as supported but suggested to be replayed remotely.
* These are some leaks, some mismatched new/deletes and some uninit'd
values. Mostly the leaks are what we care about so that the replay
host can be kept alive for a long time rather than needing to be
constantly restarted.
* Also added a valgrind suppression file to suppress some of the false
positives I ran into while testing.
Notes
======
- Create a (hopefully) cross-backend performance statistics abstraction as part of FetchFrameInfo. This currently collects statistics about constant buffer binds, sampler binds, resource binds, client and server style resource updates (e.g. Map and UpdateSubresource), index & vertex buffer binds, and draws and dispatches. In my captures this covers approximately half of all API traffic. The rest is often shader sets, and then usual RS, OM, etc., that aren't currently tracked. During READING state parsing on the wrapped device context, record statistics about the calls and store them into the current frame info. We inspect objects occasionally to get things like their type for recording. It may be useful to expand this in the future to check bind types, etc. On the GL/Vulkan backends the stats data is never initialized and we display the same statistics data as before.
- Add a new statistics pane in the UI. A variety of shim arbitration/marshalling is provided to get the statistics data across the managed/native boundary. Removed the old statistics menu item. Currently the statistics pane is just a text log of various gathered data, with ASCII art (woo!) histograms. However in the future we would like to have image based historgrams as well as support for gathering statistics on a mask of stages, etc.
- Remove 'diagnostic' events (e.g. push/pop/marker) from the API call count as it distorts the API:draw call ratio.
- Add _First and _Count to ShaderResourceType and ShaderStageType for weak enumeration (weak due to int cast requirement).
- Provide utility functions Log2Floor for 32 and 64 bit types. These require OS specific clz, which are provided for Windows/VS and Linux/gcc/clang.
TODO
======
- UI toolkit based historgram, ability to set stages enabled for statistics, etc.
- Revisit necessity of gathering statistics across frames--apparently there is no multi-frame capture in a single log anymore?
- Revisit min/max/etc. gathering on the data--is there some way to improve this to not be so mechanical? Perhaps with field enumeration? However if moving to C++/Qt in future, possibly not a good time investment.
* Unused formal parameter remains disabled, but we also disable a
warning about being unable to generate an operator=.
* glslang remains compiled on level 3, since most of the new warnings
aren't easily fixable so would be muted anyway.
* The main improvement is that instead of just callstack resolving DB
and frame capture data, some arbtirary number of sections can be
included, for e.g. adding notes or saving the bookmarks or whatever
use the user wants.
* Sections (namely the frame capture data) can now be (de)compressed on
I/O, which leads to much smaller file sizes.
* Also the default internal alignment has changed from 16 to 64 to be
more future proof (I decided not to go with completely arbitrary
alignment).
* A path for loading previous version logs remains and will be removed
at some point in the future, maybe a version or two down the line.
baldurk