We should make good use of in-place member initialization. Many
new classes have constructors that effectively do nothing but
default-initialize POD members, and when adding new members,
it is very easy to miss initializing them. With in-place
initialization, the code is more compact, the diffs are nicer,
and it's harder to miss them.
This commit only converts render/ and platform/ to use in-place
member initialization, since there was a bug in CairoRenderer,
but we should convert the entire codebase.
This changes the assertion failure behavior to be the same in debug
and release builds: to show the complete failure message, and
to offer to restart the application or defer to Windows Error
Reporting to generate a backtrace. Contrary to popular belief,
WER is not useless, and since SolveSpace publishes pdb files,
WER-generated reports can be symbolized.
This commit also addresses the long-standing problem where showing
a dialog on fatal error would re-enter the application code, thus
causing another error or a crash that is more fatal than the current
one.
According to the C standard all preprocessor definitions starting
with an underscore are reserved for standard and implementation use,
so don't use those. Also, sort and unique include directives.
windowBits of 16 means "decode gzip header" and "use window size
from zlib header". For some reason, this results in a window size
that is too small on OpenBSD. Instead, use maximum window size
explicitly, since there is no downside for doing so.
Since font sizes in SolveSpace are specified in terms of cap height,
we need U+0041 to determine cap height. Some fonts lack it; in
that case, we assume that cap height is the same as the size we've
requested. This avoids a crash, at the cost of completely wrong
(although consistent) metrics; I do not really know of a better way.
There was a copy rule that copied the locale from the source
to the binary directory, and also a regeneration rule that used
the locale in the binary directory as a temporary file.
Rename the target for the latter.
To reproduce:
* New sketch;
* Create two redundant constraints, with second being automatically
marked as reference;
* Switch one of these to non-reference;
* Allow redundant constraints;
* All new constraints with labels created as reference, even
if that specific degree of freedom is not constrained yet.
Before this commit, if the source group of a step rotate/translate
group is forced to triangle mesh, the UI would show that the step
rotate/translate group is also forced to triangle mesh, but the group
would in fact contain NURBS surfaces.
glibc defines a CHAR_WIDTH macro in limits.h since about 6.3.*.
This is apparently added as a part of ISO TS 18661-1:2014, which
I cannot read because it is not publicly available, and which covers
some sort of floating-point extensions. This is one of those changes
that should never have been done yet here we are.
This commit updates a *lot* of rather questionable path handling
logic to be robust. Specifically:
* All path operations go through Platform::Path.
* All ad-hoc path handling functions are removed, together with
PATH_SEP. This removes code that was in platform-independent
parts, but had platform-dependent behavior.
* Group::linkFileRel is removed; only an absolute path is stored
in Group::linkFile. However, only Group::linkFileRel is saved,
with the relative path calculated on the fly, from the filename
passed into SaveToFile. This eliminates dependence on global
state, and makes it unnecessary to have separare code paths
for saved and not yet saved files.
* In a departure from previous practice, functions with
platform-independent code but platform-dependent behavior
are all grouped under platform/. This makes it easy to grep
for functions with platform-dependent behavior.
* Similarly, new (GUI-independent) code for all platforms is added
in the same platform.cpp file, guarded with #ifs. It turns out
that implementations for different platforms had a lot of shared
code that tended to go out of sync.
Extrustion top and bottom faces require a normal to be present.
Before this commit, the normal is always taken from the assembled
loop; if the loop could not be assembled (i.e. the loop is broken
or not coplanar) the normal will be (0,0,0), which breaks the sketch.
Also, loops are not generated when generating the sketch
to determine its bounding box.
This may result in spuriously broken sketches when e.g. undoing
a change that has broken a loop.
After this commit, loops are generated when generating for bounding
box, and if the loop could not be assembled, then the workplane
normal is used. This still results in failures when there is
no workplane, but those cases should be quite pathological.
Before this commit, a same orientation constraint created with
a workplane selected would only remove 2 of 3 DOFs. After
this commit, it properly removes all 3 DOFs.
Before this commit, lathe groups had three DOFs, which of course
could not actually move. After this commit, lathe groups have
zero DOFs, as expected.
This bug was introduced in commit 6dced80.
Before this commit, DoLater would be run as an idle callback,
which (depending on system performance) could either result in
a half-regenerated sketch being displayed, with only the dragged
entity updated, or no regeneration whatsoever during the drag.
After this commit, the GTK behavior matches macOS and Win32 ones.
Hiding the menu bar was only supported on macOS, and it is inherently
troublesome to port because keyboard accelerators on Win32 and GTK
are inherently dependent on the menu bar being visible.
On top of that, it's not clear how to bring it back if it's hidden
by accident.
Before this commit, when a point is constrained to an entity (point,
circle, arc of circle or line segment) by clicking on it,
the resulting constraint is not necessarily satisfied, and the next
regeneration may place the newly constrained point somewhere other
than the intended position. After this commit, the parameters
are modified to satisfy the constraint.
Commit f5485cb and its ancestors add a parameter to some constraints.
This parameter must be materialized and assigned a non-zero value via
ModifyToSatisfy for the solver library to not make unnecessary
changes to the sketch during the initial generation. For this, we
represent it explicitly instead of using hc.param(0), such that
the materialized constraint does not conflict with any user-defined
ones.
This commit follows 41365c5, which enabled export of Z coordinate
by using POLYLINE instead of LWPOLYLINE. After this commit, only
the AcDb2dPolyline/AcDb2dVertex are used when exporting flat views,
which may improve compatibility with 2d design packages.
The existing code is horrible and needlessly platform-dependent.
Even worse, it causes a freeze on GTK. Instead of propping that up
with a few more crutches, just fix the root cause.
The somewhat confusingly named set_has_alpha() function does not
affect whether alpha can be used during rendering to the area.
Rather, it affects whether alpha will be used when composing
the contents of the area with the window underneath it.
Before this commit, if any rendering mode except "show all occluded"
is enabled, points can be highlighted for corresponding to a DOF
after "Analyze → Degrees of Freedom" but then promptly occluded,
which is confusing.
We want to suppress accelerators but still get input to (at least)
the window where the editor is opened. It's no harm to permit input
to other windows, but it is bad to route all of it to the editor,
since color chooser depends on being able to receive input.
So, what we do is add modal grab to the *overlay*, which has
the editor and the underlay widget, route all events as usual
to children, and just force the key events to go to the editor,
since otherwise they would still propagate up for some reason.
Before this commit, the first time NewFrame() is called,
the background color would not be filled, leading to interference
with whatever the GUI toolkit decided to put there.
This is a fairly standard CAD feature; it conveys the same
information and has the same recovery path, without erroring out,
so seems like an obvious win.
Before this commit, updates to the bitmap font in the graphics window
cause missing characters in the text window and vice versa. This is
because BitmapFont contains a texture that's mutated, and sharing it
would also require sharing display lists between GL contexts, which
is not done (and overly complicated for this case anyway).
Before this commit, dragging a new rect would result in one
of the lines lagging behind, because it is drawn in the middle
of regeneration. After this commit, the rectangle stays rectangular.
For a reason I do not understand, this only fixes Win32; GTK
continues to exhibit the bug, whereas Cocoa has never exhibited it
but the render latency seems to have lowered slightly.
It's a deprecated platform that has weird OpenGL-related bugs and
is incompatible with using EGL anyway. It was clear we're going
to drop it, the only question was when. Answer: now.
Before this commit, when an entity is clicked at or dragged, and it
shares a place with other entities, which of them is selected is
decided more or less at random. This is particularly annoying when
dragging.
After this commit, when clicking, an entity from the current group
is given preference, and when dragging, an entity from a request
is given preference. This allows e.g. dragging points of a sketch
even when an extrusion of that sketch is active.
Before this commit, it was possible to add some redundant constraints
(e.g. vertical, horizontal or midpoint) without failing the sketch,
because SolveBySubstitution() removed the redundant equations.
However, this could result in the solve failing later because
the system didn't converge, without any pointers as to the true
cause of the failure.
After this commit, any transparent triangles are drawn last, which
causes them to not clobber the depth buffer, and so if they overlap
some opaque triangles, then these opaque triangles will be visible.
There are still issues with overlapping transparent triangles,
and with transparent triangles overlapping outlines and entities.
It was broken because of three bugs:
* Uninitialized variables in RunCommand;
* Trying to use (OEM-encoded) main() argc/argv arguments instead
of GetCommandLineW();
* Trying to pass relative paths directly into ssfopen.
Before this commit, if constraints with newly introduced params were
loaded from a file that linked other files, the upgrade code would
attempt to look up a non-existent entity.
All of our executables need resources; e.g. the vector font is
a resource and it is necessary for generation. Before this commit,
the GUI executable loaded the resources in a nice way, and everything
else did it in a very ad-hoc, fragile way.
After this commit, all executables are placed in <build>/bin and
follow the same algorithm:
* On Windows, resources are compiled and linked into every
executable.
* On Linux, resources are copied into <build>/res (which is
tried first) and <prefix>/share/solvespace (which is tried
second).
* On macOS, resources are copied into <build>/res (which is
tried first) and <build>/bin/solvespace.app/Contents/Resources
(which is tried second).
In practice this means that we can add as many executables as we want
without duplicating lots of code. In addition, on macOS, we can
place supplementary executables into the bundle, and they can use
resources from the bundle transparently.
Before this commit, inserting into BSP tree could easily overflow
the stack because we allocate very large stack frames and, on
convex geometries (e.g. a sphere), the BSP tree degenerates into
a "BSP list", thus requiring one large stack frame per triangle.
This can be reproduced by exporting a 2d shaded view of sphere.
After this commit, the stack frames only contan a pointer to
a supplementary data structure, and moreover it only allocates
its fields on demand, conserving heap memory as well.
As a side effect, an arbitrary classifier limit of 50 vertices
is removed.
This commit implements two improvements. First, it rewrites
SMesh::FirstIntersectionWith() to use an optimal (as currently known)
ray tracing algorithm. Second, it rejects triangles without
an associated face entity outright.
This partially reverts commit 3a585ea.
We no longer need this because the VectorsParallel() is gone, and
there is no chance of pivoting wrong when solving.
Before this commit, parallel constraints in 3d are fragile:
constraints that are geometrically fine can end up singular anyway
because VectorsParallel() pivots wrong but converges anyway.
After this commit, much like in cc07058, the constraints are written
in a different form: instead of trying to remove two degrees of
freedom out of three, all three are removed, and one added; namely,
the constraint introduces a free parameter, signed length ratio.
Before this commit, pt-on-line constraints are buggy. To reproduce,
extrude a circle, then add a datum point and constrain it to the
axis of the circle, then move it. The cylinder will collapse.
To quote Jonathan:
> On investigation, I (a) confirm that the problem is
> the unconstrained extrusion depth going to zero, and (b) retract
> my earlier statement blaming extrude and other similar non-entity
> parameter treatment for this problem; you can easily reproduce it
> with a point in 3d constrained to lie on any line whose length
> is free.
>
> PT_ON_LINE is written using VectorsParallel, for no obvious reason.
> Rewriting that constraint to work on two projected distances (using
> any two basis vectors perpendicular to the line) should fix that
> problem, since replacing the "point on line in 3d" constraint with
> two "point on line in 2d" constraints works. That still has
> the hairy ball problem of choosing the basis vectors, which you
> can't do with a continuous function; you'd need Vector::Normal()
> or equivalent.
>
> You could write three equations and make the constraint itself
> introduce one new parameter for t. I don't know how well that
> would work numerically, but it would avoid the hairy ball problem,
> perhaps elegant at the cost of speed.
Indeed, this commit implements the latter solution: it introduces
an additional free parameter. The point being coincident with
the start of the line corresponds to the parameter being zero, and
point being coincident with the end corresponds to one).
In effect, instead of constraining two of three degrees of freedom
(for which the equations do not exist because of the hairy ball
theorem), it constrains three and adds one more.
Before this commit, polylines got flattened but all other entities
got exported with the proper Z coordinate. After this commit, all
entities are exported with proper Z coordinate.
Also, instead of exporting LWPOLYLINE (2d only), POLYLINE (2d/3d)
is exported; as a bonus it is more compatible with 3rd party
software, since it is older.
The only thing we need it anymore is the package version and platform
configuration, so only include it for that. As a result, less files
are rebuilt when the git commit changes and config.h is regenerated.
Before this commit, any visibility toggle would cause a regeneration.
After this commit, toggling visibility of normals and points never
causes a regeneration, and toggling visibility of edges and outlines
only causes a regeneration when they weren't already generated.
FromTransformationOf is called with an identity rotation or
translation for translation and rotation groups, and for every
group that doesn't produce a solid model. This commit omits any
calculations from it when the relevant part of transformation
would change nothing.
This commit results in a ~10% improvement on testcase
woodworking/big-big-big-woodworking-asm, and splitting the condition
into three parts results in a ~5% improvement on testcase
stress/rotate_groups_0.
SSurface::TriangulateInto first populates the mesh with triangles
that have no color, and then paints them, which confused the code
that detects if a mesh is transparent into thinking that all of them
are; and that broke the "draw back faces in red" feature, since it
is disabled for transparent meshes.
The configuration option "draw back faces in red" aids debugging,
in that it allows to visually identify a non-watertight mesh.
When it is disabled, or when the mesh is transparent, we used to not
draw them at all before this commit; after, they are drawn just like
the front faces.
This has two consequences:
1. Inner surfaces of non-watertight meshes are not see-through
anymore. That used to be the behavior in version 2.0, and it
was accidentally broken in 2.1.
2. Transparent meshes look *much* better.
3. Solids made from a union of a non-transparent and a transparent
one look sensibly at all.
This commit also updates the OpenGL 1 renderer to let it render
such meshes correctly.
This commit performs two main changes:
* Alters the shaders to use only strictly conformant GLSL 2.0.
* Alters the Windows UI to use ANGLE via GL ES 2.0 and EGL 1.4.
This commit also drops official support for Windows XP, since ANGLE
requires a non-XP toolset to build. It is still possible to build
SolveSpace for Windows XP using:
cmake -T v120_xp -DOPENGL=1
This commit does three things:
* Recognizes that BeginFrame()/EndFrame() are badly named, since
BeginFrame() sets up framebuffer, and EndFrame() flushes a frame,
and they do not have to be called in pairs; and so renames them
to NewFrame()/FlushFrame().
* Reduces the amount of frame flushes in GraphicsWindow::Paint()
to two, which is the minimum since we use two different cameras
for geometry and UI;
* Changes the FPS measurement code to only take into account
the time spent rendering our main geometry, and not the UI
rendering or window system interaction time.
Before this commit, tooltips in the text window are drawn under
the red "X" indicating a disabled button. After this commit, they
are moved on top of that.
This commit also alters the OpenGL renderers' SetCamera() method
to clear the depth buffer, as that would interfere with drawing
the UI; the toolbar would get occluded by geometry.
To actually achieve improved performance with the OpenGL 2 renderer,
we have to cache geometry that doesn't change when the viewport does
(note that the rendered pixels can change quite dramatically because
we can reconfigure shaders; e.g. stippling can be drawn in screen
coordinates).
This commit adds a BatchCanvas interface that can be implemented
by renderers, and uses it for drawing entities such as lines and
points.
There are two main reasons to desire an OpenGL 2 renderer:
1. Compatibility. The compatibility profile, ironically, does not
offer a lot of compatibility, and our OpenGL 1 renderer will not
run on Android, iOS, or WebGL.
2. Performance. The immediate mode does not scale, and in fact
becomes very slow with only a moderate amount of lines on screen,
and only a somewhat large amount of triangles.
This commit implements a basic OpenGL 2 renderer that uses only
features from the (OpenGL 3.2) core profile. It is not yet faster
than the OpenGL 1 renderer, primarily because it uses a lot of small
draw calls.
This commit uses OpenGL 2 on Linux and Mac OS X directly (i.e. links
to the GL symbols from version 2+); on Windows this is impossible
with the default drivers, so for now OpenGL 1 is still used there.
OpenGL 2 and newer do not have the glPolygonMode(..., GL_LINES) API,
so produce the wireframe on our side. It's somewhat slow, and draws
every line three times, but it is cached when the OpenGL 2 renderer
is used, and this should do for a debugging feature.
This specific implementation seems to have lingered from the days
before IdList was stored sorted. This commit has resulted in a ~5%
improvement in Generate::DIRTY time for modelisation.slvs on a GCC 6
release build.
gcc 6 displays these when compiling in release mode; all of these
warnings except the rankOk one were benign because there would have
been an error about the incomplete switch statement.
The rankOk warning highlighted a real problem: bailing early to
didnt_converge would have branched on an uninitialized variable.
This is a common and convenient behavior; the basename is
pre-selected, so exporting multiple views requires just one keystroke
to put the cursor after the basename.
This is useful in case one wants to create a workplane based on
one of the reference ones, to be explicit, or to avoid fishing out
again the line segments used to create a workplane at an angle.
If a generated mesh is non-watertight, and this is not noticed for
some reason (e.g. the markers are dismissed), and the mesh is
exported for further processing, it could cause problems down
the line.
Before this commit, every debug message was correctly printed
to stdout, but they were all concatenated onto a single line in
the Visual Studio "Output" pane.
GroupsInOrder is an extremely hot function, especially during object
picking: before this commit, it was easy to get second plus latencies
on picking, and after this commit picking is almost real-time.
Abstract the exact details of the OpenGL renderer in the render.h
header; this allows us to use GL-specific types in the renderer
class and functions without including OpenGL (and Windows, where
applicable) headers in every source file.
These points can be used for constraining the width of the text
(or to the width of the text).
The main parts of the commit are:
* TtfFont is restructured to be able to return the aspect ratio
for a given string.
* This aspect ratio is written to the savefile, such that even if
the font is missing, the sketch would still be solved correctly.
* The two additional points are constrained via perpendicularly
to the two main points (which form a v vector).
The compatibility features are as follows:
* When the font is missing in old files, 1:1 aspect ratio is used,
which works for the replacement symbol anyhow.
* When the two additional points are missing in old files, their
would-be positions are calculated and they are moved there,
avoiding 'jumping' of underconstrained sketches.
SolveSpace 2.0 used the height of 'A' (i.e. cap height) to determine
the reference height.
SolveSpace 2.1 completely broke that during transition to Freetype,
and used something more or less random, by using FT_Set_Char_Size
with units_per_EM.
SolveSpace 2.2 attempted to fix that, but also used something more
or less random, by using FT_Request_Size with "unit" values.
Turns out that Freetype actually doesn't have a concept of cap height
at all. It is possible to extract it from the TT_OS2 table that is
present in some TrueType fonts, but it is not present in Microsoft
fonts (the msttcorefonts ones), and for those Linux fonts in which
it is present it doesn't appear very reliable.
So instead, use the height of 'A' instead, like version 2.0 did.
This has the advantage that it is quite bulletproof, and also matches
exactly what the old files are measured against.
One downside is that fonts without an 'A' glyph would not render.
We can deal with that when it becomes a problem.
Apitrace uses swapping buffers to determine frame boundaries; before
this commit, everything solvespace renders gets put into a single
frame. Since we don't use double-buffered rendering, the call does
nothing (and is legal to perform), but apitrace output becomes
readable.
Sometimes, after a large change in a sketch, constraints that are
geometrically fine may still cause the rank test to fail. One way
this can happen is VectorsParallel() pivoting wrong due to the big
move, converging anyways but ending up singular. It would then
re-pivot correctly on the new solution when you re-solve, making
this a transient error. This is visible when dragging the arm in
the jansen-asm.slvs example.
After this commit, if the rank test fails, equations are regenerated
the Jacobian is rewritten, and the rank test is retried, which
prevents these transient errors from interfering with dragging.
The problem described above was invisible before c011444, as rank
test was only performed before solving.
A system solved as REDUNDANT_OKAY is still solved correctly,
even if the UI would consider this an error, in case that
g->allowRedundant==false. So there's no reason to discard this
solution; we might find it useful if a system loses a degree of
freedom while dragging, or to avoid regeneration after redundant
constraints are allowed.
This commit also reverts commit 3ff236c, as that is not necessary
anymore.
Before this commit, the outlines are generated in an arbitrary order
from the kd-tree. This worked just fine for continuous lines, but
for stippling, especially on curves, this meant that most of
the piecewise linear edges would have the stippling phase restart
from zero, leading to a very poor appearance.
