Previously, the VariableData returned from a DebugTracePlayer contained
values in an int32_t, regardless of the slot's NumberKind. We had a
helper function which could stringize the bits, but otherwise the caller
was responsible for bit-casting the value manually.
Now, the DebugTracePlayer will automatically manage bit-casting for the
caller. The value returned in the VariableData is now a double (so it
is able to store an int32, uint32, or float at full precision).
This change was inspired by the recent Typescript port. (The value in
the Typescript VariableData uses a compound `number | boolean` type, so
it is able to fully represent any slot value natively.)
Change-Id: I5eec414236f76ad0ff51b0b19974e4a0025c4d62
Bug: skia:12666
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/489896
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Since we know the entire flow of execution ahead of time, at any point
during trace playback, we can know if a line will be reached again or
not. We no longer highlight lines as reachable (or allow setting
breakpoints) if the line will not be reached again during trace
playback.
Change-Id: Iff563b13e2f6efb5d4f2ff37215f2ff4fb5945ed
Bug: skia:12666
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/486496
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Line numbers were previously Text. They are now SmallButtons; clicking
them sets and clears breakpoints. The set of active breakpoints is
stored in an unordered_set of line numbers. Breakpoints are visualized
by setting the color of the SmallButton controls to red.
We now also have "Reset" (start over) and "Run to Breakpoint" buttons.
http://screen/8rtenW2vszxDgCp
Change-Id: I30a79bb09811e1d8a4e4e8535cbe62020f20f111
Bug: skia:12747
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/485861
Commit-Queue: John Stiles <johnstiles@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
This is useful to know because breakpoints can only meaningfully be set
on a line of code which is reachable. In other words, we know the
entire execution path ahead of time, so we can tell you that some
branches aren't actually taken without needing to set a breakpoint at
all.
Change-Id: I72b2cddcf92fd6f75ea12d302230bae42b7112bc
Bug: skia:12666
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/485218
Commit-Queue: John Stiles <johnstiles@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
The widget layout shouldn't change when there are no variables.
Change-Id: Iedb48642486944127fa800072c1f4c57a574b513
Bug: skia:12666
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/484836
Reviewed-by: Brian Osman <brianosman@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
Right now it is non-interactible, but it's still useful for keeping
track of the flow of execution.
http://screen/4b6WMGdw6j32AGc
Change-Id: I978d9b441c15674c6cae508b123579021c2ecc46
Bug: skia:12666
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/484076
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
Previously, return values like `[func].result` would stick around in the
Variables table indefinitely. This felt very counterintuitive. Now they
only appear for one step, then vanish.
Change-Id: Iedfc7d2ddf136111005b26aaefb380ffc6281d05
Bug: skia:12666
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/483605
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
The currently-active stack frame is always shown. Values which were
modified during the last step action are highlighted.
http://screen/4E4BLXYJsDR5bhk
Change-Id: I521d92fa6c1eabd64aaeeb188c71f04a79f827f5
Bug: skia:12666
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/483602
Commit-Queue: John Stiles <johnstiles@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Stepping out is extremely similar to stepping-over, so this was mostly
working already.
Change-Id: Ib1c1ba96b45a732500e72b6da4cbfe41a1f75307
Bug: skia:12666
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/483196
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
The raw text has been replaced with a proper table. Stepping through
code now scrolls properly to focus on the current line. The ASCII "->"
arrow has been replaced by a focus highlight. The top controls no longer
scroll away when browsing code.
http://screen/BnTa3thYzUgTTdG
Change-Id: Ieaa3a479099bbd09d9ba2cb5552befdd5307f9c5
Bug: skia:12666
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/483156
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
This is a very rough first draft which provides the bare minimum. Shader
source is dumped to the window as static text, along with an arrow
tracking the current trace line. Two buttons allow for single-step and
step-over. There aren't yet any GUI affordances for the stack or
variables.
http://screen/44WAnxchjy8MPjM
Change-Id: Ifad4a146b54d334113b02132eec2238af4fd8580
Bug: skia:12666
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/481681
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
