Had to add some logic to avoid touch and mouse cross-talk, because
(at least on my laptop), the touch screen generates both kinds of
events.
This seems really useful [1] for the many [2] Skia developers with
touch-enabled Windows devices.
----------
1: No, not really.
2: N = 1?
Bug: skia:
Change-Id: Ib888bf4198f2cc0a29a31581ec4b64d3d9008c33
Reviewed-on: https://skia-review.googlesource.com/18920
Reviewed-by: Yuqian Li <liyuqian@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
The content rect was always identical to the window rect,
so most of the related code did nothing. The translation
limit code is always useful (to avoid dragging the slide
way off-screen with the mouse), so always include it.
The auto-scaling to fit the screen is also still useful,
but just base it on the window rect.
The zoom code has four state variables, only used two of
them, and one was a trivially derived computation. Fold
most of that work into computeMatrix. (The translation
was always zero -- we never changed the zoom center.)
Include fDefaultMatrix in the matrix from computeMatrix,
rather than needing to apply it specially to the canvas.
Don't apply the inverse default matrix to touch or mouse
points. The absolute positions of those touch points is
not important, but because that matrix includes scale
(and sometimes very large or very small scale), it just
had the effect of greatly amplifying or damping the drag
speed. Without it, the slide always pans at the speed of
the touch/mouse drag -- which seems more desirable.
The use of the inverse default matrix was a clever trick,
but it caused the translation (applied to the global mtx)
to be scaled, so the slide was always pinned incorrectly.
Instead, supply the unmodified window rect and the default
matrix, so the trans limit code can do the obvious correct
thing: xform the slide bounds completely, then limit the
translation that will be applied after that. Slides are
now correctly pinned to screen edge regardless of how
much zoom is present in the default matrix.
Note: There are still several bugs related to all of this
code, but given the web of xform state, it's hard to
unravel. The touch gesture still doesn't know about
viewer's zoom, so that's ignored when doing the pinning.
Beyond that, it doesn't even know about window resize -
it only configures the translation limit when setting up
a slide. I had a fix for all of this (doing the
translation limiting in computeMatrix), but then the touch
gesture doesn't know about it, and can accumulate drag
motion that needs to be un-dragged to get back on-screen,
even though the slide is never really translated that far.
SkTouchGesture is in include. No one uses it except viewer:
TBR=bsalomon@google.com
Bug: skia:
Change-Id: I460cc07c3de6d36e63826f57d359faf1facf5ab3
Reviewed-on: https://skia-review.googlesource.com/18524
Reviewed-by: Brian Osman <brianosman@google.com>
Reviewed-by: Yuqian Li <liyuqian@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Also enables mouse support in Viewer.
Change-Id: Iaed08d42a64f591f0cd9b24684b3aee43404ed94
Reviewed-on: https://skia-review.googlesource.com/15313
Commit-Queue: Jim Van Verth <jvanverth@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
BUG=skia:6242
Change-Id: I696de8eac61aebaf5cb07d8874bde3c7bd470277
Reviewed-on: https://skia-review.googlesource.com/9299
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Mike Klein <mtklein@chromium.org>
BUG=skia:
Change-Id: I3314013538792c2aa82cc49f3f072aab2cdc4a55
Reviewed-on: https://skia-review.googlesource.com/9079
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Jim Van Verth <jvanverth@google.com>
Also removes fWidth and fHeight from Window and instead
calls into WindowContent to get these values.
BUG=skia:
Change-Id: I72ee506004b7da73db9abb607a3bc82edfcf7d43
Reviewed-on: https://skia-review.googlesource.com/8795
Commit-Queue: Chris Dalton <csmartdalton@google.com>
Reviewed-by: Jim Van Verth <jvanverth@google.com>
Reviewed-by: Yuqian Li <liyuqian@google.com>
The whole idea of immediate mode GUIs is to put your GUI code and the
resulting action close together. Unfortunately, for actions that tear
down the backend (possibly freeing the surfaces we're drawing to), we
can't do that. So defer that action until the next frame (really, the
next idle). Only required when an action might call setDisplayParams.
BUG=skia:
Change-Id: I3eb95fdb462526cb6d95819612ad2725c6f1050b
Reviewed-on: https://skia-review.googlesource.com/8953
Reviewed-by: Jim Van Verth <jvanverth@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Adds radio buttons for switching among legacy, sRGB and F16.
Also adds a list of primaries you can pick from, as well as
a gamut diagram showing the primaries. The primaries can be
dragged around to alter the working space.
BUG=skia:
Change-Id: Ibd8c67dfe085594c0d7462f0efe4d79d73999919
Reviewed-on: https://skia-review.googlesource.com/8311
Reviewed-by: Matt Sarett <msarett@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Fixes loading a Sample as first slide.
Adds char input.
Adds --slide and --list options.
Change-Id: I34b66818e3673fcfdc649443e7d9dfb74b478062
Reviewed-on: https://skia-review.googlesource.com/8445
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Jim Van Verth <jvanverth@google.com>
Made it a separate ImGui window (rather than part of the debug window).
Bring it up with 'z'. Draggable/resizable. Variable zoom scale. Enjoy.
BUG=skia:
Change-Id: I949ab398126c892c8d353aaebcc8403765f42841
Reviewed-on: https://skia-review.googlesource.com/8357
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Code and docs are at: https://github.com/ocornut/imgui
ImGui is an open source immediate mode GUI library that's
lightweight and fairly simply to integrate. Widget functions
return their state, and the library emits vertex and index
data to render everything. It's got a huge set of built-in
widgets and really robust layout control.
For the initial integration, I had to fix up event handling
in the viewer's app framework (to get mouse wheel and more
keys, etc...).
The new viewer 'Debug' window is toggled with the space bar.
For this change, I've added one feature to that window: the
slide picker. It's got a list of all slides, with filtering
support, and the ability to click to switch slides.
I also included the ImGui 'Demo' window (toggled with 'g').
This is nicely laid out, and includes examples of pretty
much everything the library can do. It also serves as good
documentation - find something that looks like what you want,
and then go look at the corresponding code (all of it is in
imgui_demo.cpp).
I have other CLs with other features (like directly editing
the primaries of the working color space), but I wanted to
land this chunk first, then start adding more features.
Other than adding new debugging features, there are few
more outstanding work items:
1) Raster doesn't render the GUI correctly, due to non-
invertible pos -> UV matrices. Florin is working on that.
2) Touch inputs aren't being routed yet, so the GUI isn't
usable on Android yet. Might also be tough to work with,
given the size.
3) ImGui has clipboard integration (that's why it wants
the C, X, and V keys), but we need to wire it up to the
OS' clipboard functions.
4) Draw commands can carry a void* payload to support
drawing images (using whatever mechanism the engine has).
I'd like to set that up (probably using SkImage*), which
makes it really easy to add visualization of off-screen
images in GMs, etc...
BUG=skia:
Change-Id: Iac2a63e37228d33141cb55b7e4d60bf11b7e9ae1
Reviewed-on: https://skia-review.googlesource.com/7702
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Measure the time taken for animation and flush. Exclude UI and stats logic
from the timing. Use stacked bars to visualize the breakdown of time
within a frame.
BUG=skia:
Change-Id: I7ef84442a68147f02f65b6aa4452768fd3314de2
Reviewed-on: https://skia-review.googlesource.com/8227
Reviewed-by: Jim Van Verth <jvanverth@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
WindowContext still supports color spaces, but not other color
types. Any off-screen rendering is the app's responsibility.
This change also adds (working) F16 support to viewer. Note that
the previous 10-bit and FP16 support in WindowContext was broken.
There was no code to push the off-screen canvas to the window.
If you ever made it to the unreachable off-screen code path in
createSurface, it would have simply stopped drawing.
The decision to limit the window's gamut to sRGB is mostly driven
by my desire to add real-time editing of gamut. This design lets
us do that, without tearing down and rebuilding the window for
every change. An application could still supply a different gamut
via setDisplayParams and render directly to the back buffer with
proper color correction.
BUG=skia:
Change-Id: I94df35c7a42faee396009acc83683e40bb3c284d
Reviewed-on: https://skia-review.googlesource.com/8153
Reviewed-by: Jim Van Verth <jvanverth@google.com>
Reviewed-by: Matt Sarett <msarett@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
