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It’s questionable that the SDL backend code is trying so hard to
maintain forbidden symbols at all since backend code is exactly
where such things are allowed, and it is a game of whack-a-mole
to keep system API changes from breaking this fragile system of
symbol redefinitions. Probably this should all just get replaced
with a FORBIDDEN_SYMBOL_ALLOW_ALL, but for the time being this at
least gets builds working again on up-to-date msys2/mingw-w64
compilers.
Fixes Trac#10405.
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Can change option to 'true' manually in scummvm.ini to force front
panel into indirect touchpad mode where the pointer doesn't jump
to finger.
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VKEYBD: Fallback to SearchMan when loading keyboard packs
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This is based on a patch supplied by dam-soft. A new graphics mode is
added to the PSP port. The graphics mode is called '4:3 Aspect Ratio'
and fixes the incorrect AR. The older modes are also still present and
behave as before.
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DATA_PATH is now search when loading virtual keyboard files, the
overrides are no longer required.
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Fixes #9714.
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Symbian was the only user of that code.
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If the call used to open the browser does not return until the
browser is closed, this would previously cause ScummVM to hang.
Since we are using waitpid now, we can avoid hanging by telling
waitpid to not block on a child which has not exited.
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The register keyword was deprecated from the C++11 standard,
<http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4193.html#809>,
and removed from the C++17 standard,
<http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4340>, so
cannot exist in a well-formed C++17 program.
It has never done anything in GCC
<https://gcc.gnu.org/ml/gcc/2010-05/msg00113.html>
and because of the way it is specified in the standard, it is “as
meaningful as whitespace”
<http://www.drdobbs.com/keywords-that-arent-or-comments-by-anoth/184403859>.
The one remaining use of the register keyword is in the DS backend,
where it is used to create a local register variable using the
non-standard GCC Extended Asm feature.
Closes gh-1079.
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This reverts commit 6b4195a542083c97f696c843b9823d578b018996.
There seemed to be no clear benefit in using RLE for transparent
surfaces, and there were a few reports that it might cause crashes
on Windows. So to be on the safe side I prefer to revert this
commit.
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SDL2: Improve handling of keyboard repeat events
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General consensus on the ML was that people wanted to do this.
http://lists.scummvm.org/pipermail/scummvm-devel/2017-November/012008.html
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- Flag them as repeat events
- Disable ScummVM's own repeat event generation
This fixes keyboard repeat events not being flagged as such with SDL2,
and complies with the user's operating system preferences regarding key
repeat timings.
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We were already doing it for SDL1.2, but with SDL2 the SDL_RLEACCEL
is not passed to SDL and instead we need to call SDL_SetSurfaceRLE.
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Folks are confused about the new behaviour where the mouse is not
restricted to the game area in fullscreen, which is understandable.
This changes mouseIsGrabbed to use SDL directly in order to avoid
making changes to the user preference in the _inputGrabState.
Otherwise we'd either clobber the user's previous windowed mouse
grab preference, or require maintaining a second variable just to
track the original state, when we can have SDL do that for us.
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Normally with SDL, a mouse motion event will be sent after the
system mouse cursor has been moved by a call to
SDL_WarpMouseInWindow, but if the system cursor cannot be moved
(e.g. because the window does not have mouse focus), games still
need to receive these mouse events so they can successfully update
the mouse position internally. Otherwise, games continue to think
the mouse is still in the original position and will continue to
try to perform whatever action is associated with that mouse
position.
Refs Trac#9689.
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This patch refactors the OpenGL and SDL graphics backends,
primarily to unify window scaling and mouse handling, and to
fix coordinate mapping between the ScummVM window and the
virtual game screen when they have different aspect ratios.
Unified code for these two backends has been moved to a new
header-only WindowedGraphicsManager class, so named because it
contains code for managing graphics managers that interact with
a windowing system and render virtual screens within a larger
physical content window.
The biggest behavioral change here is with the coordinate
system mapping:
Previously, mouse offsets were converted by mapping the whole
space within the window as input to the virtual game screen
without maintaining aspect ratio. This was done to prevent
'stickiness' when the mouse cursor was within the window but
outside of the virtual game screen, but it caused noticeable
distortion of mouse movement speed on the axis with blank
space.
Instead of introducing mouse speed distortion to prevent
stickiness, this patch changes coordinate transformation to
show the system cursor when the mouse moves outside of the virtual
game screen when mouse grab is off, or by holding the mouse inside
the virtual game screen (instead of the entire window) when mouse
grab is on.
This patch also improves some other properties of the
GraphicsManager/PaletteManager interfaces:
* Nullipotent operations (getWidth, getHeight, etc.) of the
PaletteManager/GraphicsManager interfaces are now const
* Methods marked `virtual` but not inherited by any subclass have
been de-virtualized
* Extra unnecessary calculations of hardware height in
SurfaceSdlGraphicsManager have been removed
* Methods have been renamed where appropriate for clarity
(setWindowSize -> handleResize, etc.)
* C++11 support improved with `override` specifier added on
overridden virtual methods in subclasses (primarily to avoid
myself accidentally creating new methods in the subclasses
by changing types/names during refactoring)
Additional refactoring can and should be done at some point to
continue to deduplicate code between the OpenGL and SDL backends.
Since the primary goal here was to improve the coordinate mapping,
full refactoring of these backends was not completed here.
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This matches the other ScummVM and SDL APIs for mouse warp.
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This change allows:
* Engines to update their target rendering surface/size and pixel
format with the backend multiple times during gameplay;
* Users to resize the ScummVM window without having it reset
size/position every time an engine updates its target surface
format;
* Conversions/scaling to continue to run efficiently in hardware,
instead of requiring engines to pick their maximum possible
output format once and upscale inefficiently in software;
* The window to reset size once when an engine calls to set its
initial output size, and to reset again once ScummVM returns to
the launcher.
This is relevant for at least SCI32 and DreamWeb engines, which
perform graphics mode switches during games.
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