onExit is called whenever the application exits, i.e.
when the app canvas should no longer be displayed and
the loader/embedder code should take some action.
Emscripten provides two callbacks which can be used
here:
- onExit, called when the app exits (but see EXIT_RUNTIME)
- onAbort, called on abort errors.
These map to the two cases Qt's onExit supports. onExit
is not called when EXIT_RUNTIME is disabled, which means
we don't need the special case for exit code 0.
In addition call onExit on any exception. The second
call to showUi() in html_shell.html is then not needed
any more and we avoid duplicating the UI state handling
in user code.
Update the qtloader_integration test to handle changes in
behavior (we no longer set the error text on exit). Use
emscripten_force_exit() to simulate application exit -
using this function makes Emscripten call onExit even
when EXIT_RUNTIME is disabled.
Pick-to: 6.6
Change-Id: I72b5463c1836e8d5054e594abbd304fbc67032b7
Reviewed-by: Piotr Wierciński <piotr.wiercinski@qt.io>
Reviewed-by: Mikołaj Boc <Mikolaj.Boc@qt.io>
Add support for downloading files from the web server
to the in-memory file system at application load time.
See included documentation for usage.
This preload functionality is different from Emscripten's
--preload-file and --embed-file in that the files are
not packed to a single data file or embedded in the
JavaScript runtime. Instead, the files are downloaded
individually from the web server, which means that they
can be cached individually, and also updated individually
without rebuilding the application.
Any file type can be preloaded. The primary use case
(at the moment) is preloading Qt plugins and QML imports.
Pick-to: 6.6
Task-number: QTBUG-63925
Change-Id: I2b71b0d6a2c12ecd3ec58e319c679cd3f6b16631
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
After fixing the data type for D24S8, we can now implement attaching
depth and stencil (with the same texture).
For Metal we need to set a stencil flag correctly.
This allows using D24S8 in the manual test, which is likely the format
that is going to be commonly used when setting up multiview with
Qt Quick.
Fixes: QTBUG-114904
Change-Id: Ife425c6cb3e09bfe40092c841b78f7a93bb6a4cd
Reviewed-by: Andy Nichols <andy.nichols@qt.io>
Cannot just do like with other APIs and expose a view of multiple
array layers. The only option is to use the multiview-specific API
and specify layers 0..view_count-1 in the depth texture.
This allows having depth in a multiview render pass with OpenGL.
Note that this does not cover stencil. D24S8 does not work, so
we may need to explore having a dedicated, separate stencil
texture.
Task-number: QTBUG-114896
Change-Id: I06ede1d77fef199148d595a55d144c96dc3cbc9d
Reviewed-by: Andy Nichols <andy.nichols@qt.io>
...and expand the docs a bit.
Task-number: QTBUG-114896
Change-Id: I969c3aa2fa72a242e275e4b6dd996df20d1cd2ab
Reviewed-by: Andy Nichols <andy.nichols@qt.io>
Just to make sure instanced drawing does not regress. Relevant
particularly with Metal.
Fixes: QTBUG-114885
Change-Id: Ib39066d32985bf25ca02d5aa54d9cf654772be9a
Reviewed-by: Andy Nichols <andy.nichols@qt.io>
Some shortcomings and unexpected problems are not unlikely.
The basic feature, with 2 views going to a texture array's
0 and 1 elements, seems to be working with macOS, also with
MSAA. Instanced drawing has not been verified. (relevant
because layered rendering works via instancing in Metal
and the QRhi backend has to adjust the instance count
in every draw call)
Fixes: QTBUG-114774
Change-Id: I3655e0d2c658b88c4cd6b52a32f94134324e4ac9
Reviewed-by: Andy Nichols <andy.nichols@qt.io>
This should not be there because 'u' is passed to beginPass().
Change-Id: I95ba8ed400baa06948b4d4c6bbf7ca2d07a5480f
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
This relies on qsb being able to invoke dxc instead of fxc when the
request HLSL (shader model) version is 6.1. (6.1 is required for
SV_ViewID) This currently works only when conditioning offline with
qsb (or via CMake), because qsb can easily invoke dxc instead of
fxc. When shipping HLSL inside the .qsb package (so when -c is not
specified or running the external tool fails), this won't work since
the D3D12 backend still uses D3DCompile(), not IDxcCompiler. Support
for that will be investigated separately.
We also need to bump to ID3D12Device2 and ID3D12GraphicsCommandList1.
With Windows 10 version 1703 being quite old now, this should not be a
problem at run time.
There are however issues at build time, namely that MinGW and
MinGW/LLVM and similar seems to have ancient Windows SDK headers
according to the CI test runs. None of the MSVC configurations have
this in the CI, they have reasonable versions of d3d12.h and similar.
Therefore, one important aspect of this change is that the D3D12
backend of QRhi will only be available from now on when the SDK
headers are new enough (meaning ID3D12Device2 is declared, which is a
several years old type now). Otherwise, QRhi::create() will simply
fail when asking for D3D12 with a helpful warning message about the Qt
build being crippled.
Implementation-wise, there are surprises in store as well:
The way the PSO is created needs to be revamped to follow the
extensible approach that uses a pipeline state stream
description. Both the graphics and compute pipeline creation is
changed to use CreatePipelineState() and the associated
machinery. This is only really essential for graphics pipelines since
we know have to include data for view instancing (multiview). For
compute the result is the same as before.
Additionally, the view count must now be baked into the
QRhiGraphicsPipeline. This means that applications must call
setMultiViewCount() with the same value (typically 2) *both* on the
render target's color attachment and on the pipeline. Backends that do
not care about the pipeline's view count (GL, Vulkan) will of course
ignore it, but if it's not set correctly D3D12 will fail. The manual
test is updated accordingly.
Fixes: QTBUG-114772
Change-Id: I93db7313377e711c2faeb956815899b12132d23b
Reviewed-by: Andy Nichols <andy.nichols@qt.io>
The export name is now ${TARGET_NAME}Entry. This can also be overridden
by using QT_WASM_EXPORT_NAME, both in CMake and qmake
Change-Id: I59c97ae6e22f0b2720716e9d7eff7b6b13d37ab5
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
This property can take a either a WebAssembly.Module
or a promise to a module, and we don't have to specify
the exact type in the property name.
Pick-to: 6.6
Change-Id: Iebaf52178253afe8c93cf78bbe0853461bf48b67
Reviewed-by: Mikołaj Boc <Mikolaj.Boc@qt.io>
