MSVC has a conformance mode (/permissive-) where the C++ standard is more strictly
enforced. This mode is available on MSVC 15.5+ [1]
This patch enables this mode on compilers that support it and cleans up the few violations it threw up in the process.
- Mantaflow was using M_PI without requesting them using the _USE_MATH_DEFINES define to opt in to non default behaviour.
- Collada did not include the right header for std::cerr, this seemingly was fixed for other platforms already but put inside a platform guard.
- Ghost had some scoping issues regarding uninitialized variables and goto behaviour
Second landing of this patch, earlier commit was reverted due to some compiler configurations having slipped though testing
[1] https://docs.microsoft.com/en-us/cpp/build/reference/permissive-standards-conformance
Differential Revision: https://developer.blender.org/D6824
Reviewed By: brecht
MSVC has a conformance mode (/permissive-) where the C++ standard is more strictly
enforced. This mode is available on MSVC 15.5+ [1]
This patch enables this mode on compilers that support it and cleans up the few violations it threw up in the process.
- Mantaflow was using M_PI without requesting them using the _USE_MATH_DEFINES define to opt in to non default behaviour.
- Collada did not include the right header for std::cerr, this seemingly was fixed for other platforms already but put inside a platform guard.
- Ghost had some scoping issues regarding uninitialized variables and goto behaviour
[1] https://docs.microsoft.com/en-us/cpp/build/reference/permissive-standards-conformance
Differential Revision: https://developer.blender.org/D6824
Reviewed By: brecht
Viewport drawing has moved to offscreen buffers, and we no longer need to have
depth, stencil, aa samples, sRGB buffers as part of the window. So all that
code is removed now. The depth buffer was the only one still being allocated,
its removal save a bit of memory.
Code by Germano and Brecht.
Differential Revision: https://developer.blender.org/D4708
BF-admins agree to remove header information that isn't useful,
to reduce noise.
- BEGIN/END license blocks
Developers should add non license comments as separate comment blocks.
No need for separator text.
- Contributors
This is often invalid, outdated or misleading
especially when splitting files.
It's more useful to git-blame to find out who has developed the code.
See P901 for script to perform these edits.
This is no longer needed with the new offscreen draw method, so use whatever
is default and hopefully fastest. Fixes console warnings in some setups that
don't have swap copy.
rBe0c088f8fb5a introduced offline rendering support on windows, sadly it was trying to use the desktop window for getting a context, which given SetPixelFormat can only be called once for any given HDC was an unfortunate choice.
This patch uses a temporary hidden window for getting the opengl context.
Reviewers: mano-wii
Differential Revision: https://developer.blender.org/D3481
When creating an offscreen context we need wglCreatePbufferARB to create
a drawable. In non-background mode wglCreatePbufferARB would have been set
by the main window creation code. But in background mode this is not the
case so we need to create a dummy context using the screen window to init
wglew properly.
Offscreen contexts are not attached to a window and can only be used for rendering to frambuffer objects.
CGL implementation : Brecht Van Lommel (brecht)
GLX implementation : Clément Foucault (fclem)
WGL implementation : Germano Cavalcante (mano-wii)
Other implementation are just place holder for now.
Instead of cloning the window to create dummyHWNDs and dummyHDCs to avoid calling the SetPixelFormat more than once in the same window, use the original window and HDC and do not call the SetPixelFormat again.
In addition to avoiding a lot of unnecessary calls, it simplifies the code and makes it match the others OS
Now computers that support OpenGl3.3 (but not 4.5) can run Blender 2.8.
For any given HDC, you may only call SetPixelFormat *ONCE* any future
calls for the same HDC will fail. And computers that would support only
OpenGL 3.3 wouldn't have a change to get a valid OpenGL context because
the pixelformat was already set while trying to probe the supported
contexts.
We fix this by splitting the final context creation from the query of
supported OpenGL versions.
Patch by Ray Molenkamp (bzzt_ploink/LazyDodo) with code style fixes and
comments by me.
We only keep this as a way to get GPU_stubs to run, in case we want to do a
throughout cleanup in the codebase and want code using legacy calls to
fail to build.
Compatibility profile was working fine, this is mostly to get the highest GL core profile version available.
Our minimum requirement is 3.3 core profile. When we request a specific GL version:
- AMD and Intel give us exactly this version
- NVIDIA gives at least this version <-- desired behavior
so we ask for 4.5, 4.4 ... 3.3 in descending order to get the best version on the user's system.
Accept OpenGL 3.0 on Mesa instead of 3.3+ compatibility profile. (requested by @LazyDodo) This will be removed after we finish moving to core profile.
Part of T49012 and T51164
MX (Multiple conteXt) support was dropped from the GLEW 2.0 library to make core profile support cleaner.
Our WITH_GLEW_MX build option was OFF by default already; this commit removes the inactive code paths.
I'm working on a plan for multiple GPUs, contexts, resource sharing, etc. This commit gives us a cleaner starting point for that upcoming work.
Tested on Mac, will test on Linux & Windows immediately after pushing.
This greatly simplifies the options for context creation. No options for
legacy GL or EGL or ES2. Select CORE or COMPATIBILITY profile at build
time.
OpenGL 3.2 core profile will be our final target on all platforms. Until
all our code is ready we can use 3.2 compatibility profile or "legacy"
GL 2.1 on platforms that don't support compatibility profile.
This patch addresses the following issues in bf_intern_ghost
```
Warning C4312 'type cast': conversion from 'GHOST_TEmbedderWindowID' to 'HWND' of greater size bf_intern_ghost K:\BlenderGit\blender\intern\ghost\intern\GHOST_WindowWin32.cpp 179
Warning C4312 'type cast': conversion from 'GHOST_TEmbedderWindowID' to 'HWND' of greater size bf_intern_ghost K:\BlenderGit\blender\intern\ghost\intern\GHOST_WindowWin32.cpp 198
```
GHOST_TEmbedderWindowID is defined as long, handles are however of pointer size,
so this should have been an issue when we moved to 64 bits, guess we got lucky.
fixed by turning GHOST_TEmbedderWindowID from long into void*
```
Warning C4302 'reinterpret_cast': truncation from 'HKL' to 'LANGID' bf_intern_ghost K:\BlenderGit\blender\intern\ghost\intern\GHOST_ImeWin32.cpp 67
```
reinterpret_cast emits warnings on truncation, LOWORD does the job just
as well with no warnings.
```
Warning C4838 conversion from 'int' to 'DWORD' requires a narrowing conversion bf_intern_ghost K:\BlenderGit\blender\intern\ghost\intern\GHOST_ContextWGL.cpp 734
Warning C4838 conversion from 'int' to 'BYTE' requires a narrowing conversion bf_intern_ghost K:\BlenderGit\blender\intern\ghost\intern\GHOST_ContextWGL.cpp 734
```
Weird warning, it does a really bad job at telling you what parameter is
causing the warning , tuns out there's a bunch of parameters that cause it
but it still only yields a single warning, the problem is that every
(somevar ? a : b) construct results in an integer type. which needs to be
properly cast to get rid of the warning.
```
Warning C4996 'GetVersionExA': was declared deprecated bf_intern_ghost K:\BlenderGit\blender\intern\ghost\intern\GHOST_WindowWin32.cpp 105
Warning C4996 'GetVersionExA': was declared deprecated bf_intern_ghost K:\BlenderGit\blender\intern\ghost\intern\GHOST_WindowWin32.cpp 107
```
The warning was clear, the code not as much. The version check in place
here is quite convoluted and could be replaced by including VersionHelpers.h
and calling IsWindows7OrGreater, However, CreateInstance will just return NULL
in m_Bar if the interface is not supported, so the whole check is useless.
This however did require that the CreateInstance call actually asked for
ITaskbarList3 and not ITaskBarlist . (You're not really allowed to assign
different interface types to each-other, a roundtrip through QueryInterface
is required there, we were violating spec here by asking for ITaskBarlist and
storing it in ITaskbarList3* )
Reviewers: sergey
Reviewed By: sergey
Subscribers: sergey
Differential Revision: https://developer.blender.org/D2094
A new option '-a' can be passed to the blenderplayer. It forces the
framebuffer to have an alpha channel.
This can be used in VideoTexture to return a image with alpha channel
with ImageViewport (provided alpha is set to True on the ImageViewport
object and that the background color alpha channel is 0, which is the
default).
Without the -a option, the frame buffer has no alpha channel and
ImageViewport always returns an opaque image, no matter what.
In Linux, the player window will be rendered transparently over
the desktop.
In Windows, the player window is still rendered opaque because
transparency of the window is only possible using the 'compositing'
functions of Windows. The code is there but not enabled (look for
WIN32_COMPOSITING) because 1) it doesn't work so well 2) it requires
a DLL that is only available on Vista and up.
give precedence to AA over Swap copy:
Certain GPU (intel) will not allow MSAA together with swap copy.
Previously, swap copy had priority over MSAA: fewer AA samples would be
chosen if it was the condition to get swap copy. This patch reverse the
logic: swap copy will be abandonned if another swap method (undefined or
exchange) will provide the number of AA samples requested. If no AA
samples is requested, swap copy still has the priority of course.
* m_hDC was always included after m_hWnd in all the constructors and other functions,
but the order was reversed in the struct, meaning that they would not get initialised
correctly
* Got rid of the gotos for the error handling case in initializeDrawingContext()
This was causing "jump to label ... crosses initialisation" errors for the calls
to get GL version string info (i.e. const char *vendor = ...; etc.) I wasn't sure
if those glGetString calls needed the rest of the context to be defined first, so
I decided to leave them where they are now, and got rid of the gotos (which were
making this particular piece of code a bit confusing) instead.
TODO:
There are still a bunch of warnings about around 660, which I haven't managed to solve
(but at least they won't prevent Blender from compiling)
narrowing conversion of '(stereoVisual ? 1063 : 1061)' from 'int' to
'DWORD {aka long unsigned int}' inside { } is ill-formed in C++11 [-Wnarrowing]
OpenGL is detected:
Hoping to decrease the frequency of by far one of the most frequent bug
reports by windows users.
There is some reorganization of the GHOST API to allow easy addition of
further OpenGL options in the future. The change is not propagated too
deep to keep the size of the patch managable. We might reorganize things
here later.
For OpenGL we do two checks here:
One is a combination of GDI generic renderer or vendor microsoft
corporation and OpenGL version 1.1. This means the system does not
use GPU acceleration at all. We warn user to install a graphics
driver and of cases where this might happen (remote connection, using
blender through virtual machine)
The other one just checks if OpenGL version is less than 1.4 (we can
easily change that in the future of course) and warns that it is
deprecated.
Both cases will still let blender startup correctly but users should now
have a clear idea of the system being unsupported.
A user preference flag is provided to turn the warning off.
Now stop posting those bug reports without installing a driver first -
please?
