This implements the depth offset factor that you can set through e.g.
OpenGL's `glPolygonOffset`. Without it, triangles might start to Z-
fight amongst each other.
This fixes the floor decals in Quake 3.
If an icon exists and the horizontal scroll value is larger than 0,
translate the TextEditor painter by the icon size and padding.
The text would scroll over the icon when the text was long enough to
trigger a horizontal scroll.
Fixes#13669.
Implement (anti)aliased point drawing and anti-aliased line drawing.
Supported through LibGL's `GL_POINTS`, `GL_LINES`, `GL_LINE_LOOP` and
`GL_LINE_STRIP`.
In order to support this, `LibSoftGPU`s rasterization logic was
reworked. Now, any primitive can be drawn by invoking `rasterize()`
which takes care of the quad loop and fragment testing logic. Three
callbacks need to be passed:
* `set_coverage_mask`: the primitive needs to provide initial coverage
mask information so fragments can be discarded early.
* `set_quad_depth`: fragments survived stencil testing, so depth values
need to be set so depth testing can take place.
* `set_quad_attributes`: fragments survived depth testing, so fragment
shading is going to take place. All attributes like color, tex coords
and fog depth need to be set so alpha testing and eventually,
fragment rasterization can take place.
As of this commit, there are four instantiations of this function:
* Triangle rasterization
* Points - aliased
* Points - anti-aliased
* Lines - anti-aliased
In order to standardize vertex processing for all primitive types,
things like vertex transformation, lighting and tex coord generation
are now taking place before clipping.
This patch fixes a value glitch when changing the slider value via
dragging the knob with the mouse and having a min value smaller than 0.
Before this patch it was not possible to drag the value below 0 and it
just snapped to the configured min value if the mouse was at the most
left position. Now the value is calculated from the value range and
mouse position within the widget.
This patch adds an eye-like button to the PasswordBox
which allows the user to reveal the typed password.
Whether or not the button is shown is controllable via
an additional property within the PasswordBox.
When parsing <ndash-dimension> <signless-integer>, we tried to parse
a new token from the stream instead of using the value we had already
extracted. This caused pages that used the syntax to crash.
This commit adds draw_ellipse() and moves the shared code
for circles and ellipses to draw_ellipse_part().
draw_ellipse_part() can draw an entire circle in one call using
8-way symmetry and an ellipse in two calls using 4-way symmetry.
This method will center a group of window rects, within some
bounds, accounting for the properties of the currently selected theme
(i.e. border width, title height, etc).
This is only enabled for clang right now, because it does not seem to
work on GCC.
Also fixes the types of two intermediate results
Co-authored-by: kleines Filmröllchen <filmroellchen@serenityos.org>
