`GHOST_SwapWindowBuffers` doesn't fit well when using swapchains. In
that case an approach where swap chain images are acquired and released
would map better. This PR introduces `GHOST_SwapWindowBufferAcquire`
and `GHOST_SwapWindowBufferRelease` to be more in line with vulkan swap
chains.
Previous implementation would first record all GPU commands based on
the last used swap chain. In case a swapchain needed to be recreated
(window resize, move to other monitor) the recorded commands would
not match the swap chain and could lead to artifacts.
OpenGL only implements the release functions as they don't
have a mechanism to acquire a swap chain image. (Need to validate with
the Metal API how this is working and adapt is needed).
Currently when starting blender on a HDR capable display the first frame
would be based on an sRGB surface and presented on an extended RGB
(or other) surface. As these don't match the first frame could be incorrect and
also lead to UBs as another surface is expected.
Pull Request: https://projects.blender.org/blender/blender/pulls/145728
Some mice have an additional horizontal scroll wheel. This patch adds support
for receiving such events. By default it is used to scroll 2D editors left and right.
I originally developed this because I was missing it in the spreadsheet, but it
seems to be useful in many other editors too.
It's supported on Linux (Wayland), Windows and macos.
Pull Request: https://projects.blender.org/blender/blender/pulls/138758
The GHOST_DisplayManager and its implementations are for the most part
unmaintained and almost completely unused in all backends. To clean
things up, and avoid any confusion about how displays are handled in
each respective GHOST backend, this PR completely removes the GHOST
Display Manager, and move the few remaining logic it still held directly
to the corresponding backends.
The backends that were modified (apart from removing the display manager
initialization call from their init) are:
- Win32: `GHOST_SystemWin32::getNumDisplays()` was calling
`m_displayManager->getNumDisplays`, the underlying system metric call
(`GetSystemMetrics(SM_CMONITORS)`) was substituted in place.
- SDL: `GHOST_SystemSDL::createWindow` was calling
`GHOST_DisplayManagerSDL::getCurrentDisplayModeSDL` which returned its
`m_mode` data member by reference. Since none of the
`GHOST_DisplayManagerSDL` member function that modified this data member
were ever called, the variable `memset` initialization call was
substituted in place from the `DisplayManagerSDL` constructor
Pull Request: https://projects.blender.org/blender/blender/pulls/138066
Previously spell checker ignored text in single quotes however this
meant incorrect spelling was ignored in text where it shouldn't have
been.
In cases single quotes were used for literal strings
(such as variables, code & compiler flags),
replace these with back-ticks.
In cases they were used for UI labels,
replace these with double quotes.
In cases they were used to reference symbols,
replace them with doxygens symbol link syntax (leading hash).
Apply some spelling corrections & tweaks (for check_spelling_* targets).
Remove full-screen support from GHOST API's.
Note that this only had back-end implements for X11 and WIN32.
This was last used for the Game Engine to run games full-screen,
removing as it's unused and it doesn't seem likely to be used in the
future.
This doesn't impact making Blender full-screen from the window menu
which uses a window decoration setting.
Ref: !137050
This is because sse2neon.h might be used to emulate SSE intrinsics
on ARM64 architecture, and it uses some preprocessor which is not
available for C language when using MSVC.
The old-style math file math_matrix.c uses this header, so needed
to become C++. Simple rename did not work since there is a new math
utility math_matrix.cc exists. Following some existing convention
the math_matrix.c is renamed to math_matrix_c.cc. Eventually all the
code should switch to use C++ style math, and the C style removed,
so it seems reasonable to not mix old and new style of API in the
same file.
There should be no functional changes.
Pull Request: https://projects.blender.org/blender/blender/pulls/121335
There are some tragic design flaws with the Microsoft STL
implementation of `std::dequeue`. Unless we implement our
own similar data structure or use an implementation from
another library, the change isn't worth it.
This reverts commit b26cd6a4b9.
This reverts commit cc11ba33d9.
This reverts commit c929d75054.
This reverts commit bd3d5a750d.
GSQueue dates back over 21 years, past the initial git commit. Nowadays
we generally prefer to use data structures from the C++ standard library
or our own C++ data structures. Previous commits replaced this container
with `std::queue` in a few areas. Now it is unused and can be removed.
It's possible for there to be no outputs under Wayland
(when unplugging monitors for e.g.) so this must be accounted for.
Also avoid calculating the window position when the GHOST backend
doesn't support window positions (which is the case for Wayland).
Add checks for the SDL backend too, where accessing the
screen & desktop size may fail.
Listing the "Blender Foundation" as copyright holder implied the Blender
Foundation holds copyright to files which may include work from many
developers.
While keeping copyright on headers makes sense for isolated libraries,
Blender's own code may be refactored or moved between files in a way
that makes the per file copyright holders less meaningful.
Copyright references to the "Blender Foundation" have been replaced with
"Blender Authors", with the exception of `./extern/` since these this
contains libraries which are more isolated, any changed to license
headers there can be handled on a case-by-case basis.
Some directories in `./intern/` have also been excluded:
- `./intern/cycles/` it's own `AUTHORS` file is planned.
- `./intern/opensubdiv/`.
An "AUTHORS" file has been added, using the chromium projects authors
file as a template.
Design task: #110784
Ref !110783.
* opengl_context -> system_gpu_context. This is the operating system OpenGL,
Metal or Vulkan context provided by GHOST.
* gpu_context -> blender_gpu_context. This is the GPUContext provided by
the Blender GPU module, which wraps the GHOST context and adds some state.
* Various functions create/destroy/enable/disable both contexts, these have
just gpu_context in the name now.
Pull Request: https://projects.blender.org/blender/blender/pulls/108723
The goal is to solve confusion of the "All rights reserved" for licensing
code under an open-source license.
The phrase "All rights reserved" comes from a historical convention that
required this phrase for the copyright protection to apply. This convention
is no longer relevant.
However, even though the phrase has no meaning in establishing the copyright
it has not lost meaning in terms of licensing.
This change makes it so code under the Blender Foundation copyright does
not use "all rights reserved". This is also how the GPL license itself
states how to apply it to the source code:
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software ...
This change does not change copyright notice in cases when the copyright
is dual (BF and an author), or just an author of the code. It also does
mot change copyright which is inherited from NaN Holding BV as it needs
some further investigation about what is the proper way to handle it.
For example
```
OIIOOutputDriver::~OIIOOutputDriver()
{
}
```
becomes
```
OIIOOutputDriver::~OIIOOutputDriver() {}
```
Saves quite some vertical space, which is especially handy for
constructors.
Pull Request: https://projects.blender.org/blender/blender/pulls/105594
Add command line argument to switch gpu backend. Add `--gpu-backend` option to
override the gpu backend selected by Blender.
Values for this option that will be available in releases for now are:
* opengl: Force blender to select OpenGL backend.
During development and depending on compile options additional values can exist:
* metal: Force Blender to select Metal backend.
When this option isn't provided the internal logic for GPU backend selection will be used.
Note that this is at the time of writing the same as always selecting the opengl backend.
Reviewed By: fclem, brecht, MichaelPW
Differential Revision: https://developer.blender.org/D16297
MTLContext provides functionality for command encoding, binding management and graphics device management. MTLImmediate provides simple draw enablement with dynamically encoded data. These draws utilise temporary scratch buffer memory to provide minimal bandwidth overhead during workload submission.
This patch also contains empty placeholders for MTLBatch and MTLDrawList to enable testing of first pixels on-screen without failure.
The Metal API also requires access to the GHOST_Context to ensure the same pre-initialized Metal GPU device is used by the viewport. Given the explicit nature of Metal, explicit control is also needed over presentation, to ensure correct work scheduling and rendering pipeline state.
Authored by Apple: Michael Parkin-White
Ref T96261
(The diff is based on 043f59cb3b)
Reviewed By: fclem
Differential Revision: https://developer.blender.org/D15953
This cleans up the OpenGL build flags and linking.
It additionally also removes some dead code.
One of these dead code paths is WITH_X11_ALPHA which actually never was
active even with the build flag on. The call to use this was never
called because the default initializer for GHOST was set to have it off
per default. Nothing called this function with a boolean value to enable it.
These cleanups are needed to support true headless OpenGL rendering.
Without these cleanups libepoxy will fail to load the correct OpenGL
Libraries as we have already linked them to the blender binary.
Reviewed By: Brecht, Campbell, Jeroen
Differential Revision: http://developer.blender.org/D15554
With libepoxy we can choose between EGL and GLX at runtime, as well as
dynamically open EGL and GLX libraries without linking to them.
This will make it possible to build with Wayland, EGL, GLVND support while
still running on systems that only have X11, GLX and libGL. It also paves
the way for headless rendering through EGL.
libepoxy is a new library dependency, and is included in the precompiled
libraries. GLEW is no longer a dependency, and WITH_SYSTEM_GLEW was removed.
Includes contributions by Brecht Van Lommel, Ray Molenkamp, Campbell Barton
and Sergey Sharybin.
Ref T76428
Differential Revision: https://developer.blender.org/D15291
The `ascii` member was only kept for historic reason as some platforms
didn't support utf8 when it was first introduced.
Remove the `ascii` struct members since many checks used this as a
fall-back for utf8_buf not being set which isn't needed.
There are a few cases where it's convenient to access the ASCII value
of an event (or nil) so a function has been added to do that.
*Details*
- WM_event_utf8_to_ascii() has been added for the few cases an events
ASCII value needs to be accessed, this just avoids having to do
multi-byte character checks in-line.
- RNA Event.ascii remains, using utf8_buf[0] for single byte characters.
- GHOST_TEventKeyData.ascii has been removed.
- To avoid regressions non-ASCII Latin1 characters from GHOST are
converted into multi-byte UTF8, when building X11 without
XInput & X_HAVE_UTF8_STRING it seems like could still occur.
Use a shorter/simpler license convention, stops the header taking so
much space.
Follow the SPDX license specification: https://spdx.org/licenses
- C/C++/objc/objc++
- Python
- Shell Scripts
- CMake, GNUmakefile
While most of the source tree has been included
- `./extern/` was left out.
- `./intern/cycles` & `./intern/atomic` are also excluded because they
use different header conventions.
doc/license/SPDX-license-identifiers.txt has been added to list SPDX all
used identifiers.
See P2788 for the script that automated these edits.
Reviewed By: brecht, mont29, sergey
Ref D14069
This reverts commit 086f191169.
There was apparently a problem using APPEND which wasn't referenced
in the commit log.
Added comment noting the reason for the discrepancy.
This was already done for APPLE & WIN32, which would
reference these libraries twice.
Now append BROTLI_LIBRARIES to FREETYPE_LIBRARIES when they're
required for linking.
No functional changes as all references to FREETYPE_LIBRARIES also
used BROTLI_LIBRARIES.
