terminal/src/host
Michael Niksa 8ea9b327f3
Adjusts High DPI scaling to enable differential rendering (#5345)
## Summary of the Pull Request
- Adjusts scaling practices in `DxEngine` (and related scaling practices in `TerminalControl`) for pixel-perfect row baselines and spacing at High DPI such that differential row-by-row rendering can be applied at High DPI.

## References
- #5185 

## PR Checklist
* [x] Closes #5320, closes #3515, closes #1064
* [x] I work here.
* [x] Manually tested.
* [x] No doc.
* [x] Am core contributor. Also discussed with some of them already via Teams.

## Detailed Description of the Pull Request / Additional comments

**WAS:**
- We were using implicit DPI scaling on the `ID2D1RenderTarget` and running all of our processing in DIPs (Device-Independent Pixels). That's all well and good for getting things bootstrapped quickly, but it leaves the actual scaling of the draw commands up to the discretion of the rendering target.
- When we don't get to explicitly choose exactly how many pixels tall/wide and our X/Y placement perfectly, the nature of floating point multiplication and division required to do the presentation can cause us to drift off slightly out of our control depending on what the final display resolution actually is.
- Differential drawing cannot work unless we can know the exact integer pixels that need to be copied/moved/preserved/replaced between frames to give to the `IDXGISwapChain1::Present1` method. If things spill into fractional pixels or the sizes of rows/columns vary as they are rounded up and down implicitly, then we cannot do the differential rendering.

**NOW:**
- When deciding on a font, the `DxEngine` will take the scale factor into account and adjust the proposed height of the requested font. Then the remainder of the existing code that adjusts the baseline and integer-ifies each character cell will run naturally from there. That code already works correctly to align the height at normal DPI and scale out the font heights and advances to take an exact integer of pixels.
- `TermControl` has to use the scale now, in some places, and stop scaling in other places. This has to do with how the target's nature used to be implicit and is now explicit. For instance, determining where the cursor click hits must be scaled now. And determining the pixel size of the display canvas must no longer be scaled.
- `DxEngine` will no longer attempt to scale the invalid regions per my attempts in #5185 because the cell size is scaled. So it should work the same as at 96 DPI.
- The block is removed from the `DxEngine` that was causing a full invalidate on every frame at High DPI.
- A TODO was removed from `TermControl` that was invalidating everything when the DPI changed because the underlying renderer will already do that.

## Validation Steps Performed
* [x] Check at 150% DPI. Print text, scroll text down and up, do selection.
* [x] Check at 100% DPI. Print text, scroll text down and up, do selection.
* [x] Span two different DPI monitors and drag between them.
* [x] Giant pile of tests in https://github.com/microsoft/terminal/pull/5345#issuecomment-614127648

Co-authored-by: Dustin Howett <duhowett@microsoft.com>
Co-authored-by: Mike Griese <migrie@microsoft.com>
2020-04-22 14:59:51 -07:00
..
dll Unify and clean up the common build properties (#3429) 2019-11-05 14:29:11 -08:00
exe Add experimental retro terminal effects (#3468) 2019-12-12 13:44:01 +00:00
ft_host Change NULL to nullptr since they are pointers (#4960) 2020-03-20 20:35:12 +00:00
ft_integrity Fix a bunch of spelling errors across the project (#4295) 2020-02-10 20:40:01 +00:00
ft_uia Remove unneeded whitespace (#5162) 2020-03-30 14:33:32 +00:00
lib Migrate Search module as a shared component for Terminal Search (#3279) 2019-11-14 14:36:41 -08:00
ut_host Update the virtual bottom location if the cursor moves below it (#5317) 2020-04-14 13:20:30 -07:00
ut_lib Unify and clean up the common build properties (#3429) 2019-11-05 14:29:11 -08:00
_output.cpp Fix FillConsoleOutputCharacterA crash (#4309) 2020-02-10 14:09:08 -08:00
_output.h Initial release of the Windows Terminal source code 2019-05-02 15:29:04 -07:00
_stream.cpp Correct scrolling invalidation region for tmux in pty w/ bitmap (#5122) 2020-03-27 22:37:23 +00:00
_stream.h Unify UTF-8 handling using til::u8u16 & revise WriteConsoleAImpl (#4422) 2020-02-03 18:06:55 -08:00
alias.cpp Fix a bunch of spelling errors across the project (#4295) 2020-02-10 20:40:01 +00:00
alias.h add clang-format conf to the project, format the c++ code (#1141) 2019-06-11 13:27:09 -07:00
ApiRoutines.h add clang-format conf to the project, format the c++ code (#1141) 2019-06-11 13:27:09 -07:00
cmdline.cpp Replace macros with constexpr part 2 (#3416) 2019-11-04 07:37:47 -06:00
cmdline.h Remove unneeded VT-specific control character handling (#4289) 2020-01-29 19:18:46 +00:00
CommandListPopup.cpp add clang-format conf to the project, format the c++ code (#1141) 2019-06-11 13:27:09 -07:00
CommandListPopup.hpp add clang-format conf to the project, format the c++ code (#1141) 2019-06-11 13:27:09 -07:00
CommandNumberPopup.cpp add clang-format conf to the project, format the c++ code (#1141) 2019-06-11 13:27:09 -07:00
CommandNumberPopup.hpp add clang-format conf to the project, format the c++ code (#1141) 2019-06-11 13:27:09 -07:00
conapi.h Initial release of the Windows Terminal source code 2019-05-02 15:29:04 -07:00
conareainfo.cpp add clang-format conf to the project, format the c++ code (#1141) 2019-06-11 13:27:09 -07:00
conareainfo.h add clang-format conf to the project, format the c++ code (#1141) 2019-06-11 13:27:09 -07:00
conattrs.cpp add clang-format conf to the project, format the c++ code (#1141) 2019-06-11 13:27:09 -07:00
conddkrefs.h add clang-format conf to the project, format the c++ code (#1141) 2019-06-11 13:27:09 -07:00
conhost.rcv Initial release of the Windows Terminal source code 2019-05-02 15:29:04 -07:00
conhostv2_traceviewpp.tvpp Initial release of the Windows Terminal source code 2019-05-02 15:29:04 -07:00
conimeinfo.cpp add clang-format conf to the project, format the c++ code (#1141) 2019-06-11 13:27:09 -07:00
conimeinfo.h Fix a bunch of spelling errors across the project (#4295) 2020-02-10 20:40:01 +00:00
conserv.h add clang-format conf to the project, format the c++ code (#1141) 2019-06-11 13:27:09 -07:00
ConsoleArguments.cpp Add support for "reflow"ing the Terminal buffer (#4741) 2020-03-12 17:43:37 -07:00
ConsoleArguments.hpp Add support for "reflow"ing the Terminal buffer (#4741) 2020-03-12 17:43:37 -07:00
consoleInformation.cpp Move MouseInput from TermAdapter to TermInput (#4848) 2020-03-12 22:25:43 +00:00
conv.h add clang-format conf to the project, format the c++ code (#1141) 2019-06-11 13:27:09 -07:00
convarea.cpp add clang-format conf to the project, format the c++ code (#1141) 2019-06-11 13:27:09 -07:00
conwinuserrefs.h add clang-format conf to the project, format the c++ code (#1141) 2019-06-11 13:27:09 -07:00
CopyFromCharPopup.cpp add clang-format conf to the project, format the c++ code (#1141) 2019-06-11 13:27:09 -07:00
CopyFromCharPopup.hpp add clang-format conf to the project, format the c++ code (#1141) 2019-06-11 13:27:09 -07:00
CopyToCharPopup.cpp add clang-format conf to the project, format the c++ code (#1141) 2019-06-11 13:27:09 -07:00
CopyToCharPopup.hpp add clang-format conf to the project, format the c++ code (#1141) 2019-06-11 13:27:09 -07:00
CursorBlinker.cpp Change NULL to nullptr since they are pointers (#4960) 2020-03-20 20:35:12 +00:00
CursorBlinker.hpp Initial release of the Windows Terminal source code 2019-05-02 15:29:04 -07:00
dbcs.cpp add clang-format conf to the project, format the c++ code (#1141) 2019-06-11 13:27:09 -07:00
dbcs.h add clang-format conf to the project, format the c++ code (#1141) 2019-06-11 13:27:09 -07:00
directio.cpp Replace some macros with constexpr (#3362) 2019-11-01 10:33:09 -07:00
directio.h add clang-format conf to the project, format the c++ code (#1141) 2019-06-11 13:27:09 -07:00
dirs Initial release of the Windows Terminal source code 2019-05-02 15:29:04 -07:00
exemain.cpp Change NULL to nullptr since they are pointers (#4960) 2020-03-20 20:35:12 +00:00
getset.cpp Reimplement the VT tab stop functionality (#5173) 2020-04-01 12:49:27 +00:00
getset.h Reimplement the VT tab stop functionality (#5173) 2020-04-01 12:49:27 +00:00
globals.cpp Add just the test infrastructure bits from #4354 (#4382) 2020-01-29 16:33:06 +00:00
globals.h Add just the test infrastructure bits from #4354 (#4382) 2020-01-29 16:33:06 +00:00
handle.cpp Removed using namespace directive from header files (#955) 2019-05-30 11:14:21 -07:00
handle.h Initial release of the Windows Terminal source code 2019-05-02 15:29:04 -07:00
history.cpp Merged PR 4447792: Fix two bugs with DOSKEY 2020-03-19 18:14:52 +00:00
history.h Replace macros with constexpr part 2 (#3416) 2019-11-04 07:37:47 -06:00
host-common.vcxitems Migrate Search module as a shared component for Terminal Search (#3279) 2019-11-14 14:36:41 -08:00
IIoProvider.hpp Fix a bunch of spelling errors across the project (#4295) 2020-02-10 20:40:01 +00:00
init.cpp add clang-format conf to the project, format the c++ code (#1141) 2019-06-11 13:27:09 -07:00
init.hpp Initial release of the Windows Terminal source code 2019-05-02 15:29:04 -07:00
input.cpp ci: run spell check in CI, fix remaining issues (#4799) 2020-03-25 11:02:53 -07:00
input.h Replace macros with constexpr part 2 (#3416) 2019-11-04 07:37:47 -06:00
inputBuffer.cpp ci: run spell check in CI, fix remaining issues (#4799) 2020-03-25 11:02:53 -07:00
inputBuffer.hpp Move MouseInput from TermAdapter to TermInput (#4848) 2020-03-12 22:25:43 +00:00
inputKeyInfo.cpp Initial release of the Windows Terminal source code 2019-05-02 15:29:04 -07:00
inputReadHandleData.cpp add clang-format conf to the project, format the c++ code (#1141) 2019-06-11 13:27:09 -07:00
inputReadHandleData.h add clang-format conf to the project, format the c++ code (#1141) 2019-06-11 13:27:09 -07:00
misc.cpp add clang-format conf to the project, format the c++ code (#1141) 2019-06-11 13:27:09 -07:00
misc.h add clang-format conf to the project, format the c++ code (#1141) 2019-06-11 13:27:09 -07:00
ntprivapi.cpp Change NULL to nullptr since they are pointers (#4960) 2020-03-20 20:35:12 +00:00
ntprivapi.hpp add clang-format conf to the project, format the c++ code (#1141) 2019-06-11 13:27:09 -07:00
output.cpp Fix a bunch of spelling errors across the project (#4295) 2020-02-10 20:40:01 +00:00
output.h add clang-format conf to the project, format the c++ code (#1141) 2019-06-11 13:27:09 -07:00
outputStream.cpp Reimplement the VT tab stop functionality (#5173) 2020-04-01 12:49:27 +00:00
outputStream.hpp Reimplement the VT tab stop functionality (#5173) 2020-04-01 12:49:27 +00:00
popup.cpp Get rid of the SCREEN_INFORMATION::LineChar array (#3371) 2019-10-31 10:12:41 -05:00
popup.h Replace some macros with constexpr (#3362) 2019-11-01 10:33:09 -07:00
precomp.cpp Initial release of the Windows Terminal source code 2019-05-02 15:29:04 -07:00
precomp.h add clang-format conf to the project, format the c++ code (#1141) 2019-06-11 13:27:09 -07:00
PtySignalInputThread.cpp Fix a bunch of spelling errors across the project (#4295) 2020-02-10 20:40:01 +00:00
PtySignalInputThread.hpp Revert locking changes (#3488) 2019-11-08 13:44:52 -08:00
readData.cpp Initial release of the Windows Terminal source code 2019-05-02 15:29:04 -07:00
readData.hpp add clang-format conf to the project, format the c++ code (#1141) 2019-06-11 13:27:09 -07:00
readDataCooked.cpp add clang-format conf to the project, format the c++ code (#1141) 2019-06-11 13:27:09 -07:00
readDataCooked.hpp add clang-format conf to the project, format the c++ code (#1141) 2019-06-11 13:27:09 -07:00
readDataDirect.cpp add clang-format conf to the project, format the c++ code (#1141) 2019-06-11 13:27:09 -07:00
readDataDirect.hpp add clang-format conf to the project, format the c++ code (#1141) 2019-06-11 13:27:09 -07:00
readDataRaw.cpp add clang-format conf to the project, format the c++ code (#1141) 2019-06-11 13:27:09 -07:00
readDataRaw.hpp Initial release of the Windows Terminal source code 2019-05-02 15:29:04 -07:00
registry.cpp Fix a bunch of spelling errors across the project (#4295) 2020-02-10 20:40:01 +00:00
registry.hpp add clang-format conf to the project, format the c++ code (#1141) 2019-06-11 13:27:09 -07:00
renderData.cpp ci: run spell check in CI, fix remaining issues (#4799) 2020-03-25 11:02:53 -07:00
renderData.hpp Properly represent block selections in UIA (#4991) 2020-03-18 21:03:51 +00:00
renderFontDefaults.cpp Allow FontInfo{,Base,Desired} to store a font name > 32 wch (#3107) 2019-10-14 21:23:45 -07:00
renderFontDefaults.hpp Allow FontInfo{,Base,Desired} to store a font name > 32 wch (#3107) 2019-10-14 21:23:45 -07:00
res.rc Initial release of the Windows Terminal source code 2019-05-02 15:29:04 -07:00
resource.h add clang-format conf to the project, format the c++ code (#1141) 2019-06-11 13:27:09 -07:00
runft.bat Initial release of the Windows Terminal source code 2019-05-02 15:29:04 -07:00
runtests.bat Initial release of the Windows Terminal source code 2019-05-02 15:29:04 -07:00
runut.bat Initial release of the Windows Terminal source code 2019-05-02 15:29:04 -07:00
ScreenBufferRenderTarget.cpp add clang-format conf to the project, format the c++ code (#1141) 2019-06-11 13:27:09 -07:00
ScreenBufferRenderTarget.hpp add clang-format conf to the project, format the c++ code (#1141) 2019-06-11 13:27:09 -07:00
screenInfo.cpp Adjusts High DPI scaling to enable differential rendering (#5345) 2020-04-22 14:59:51 -07:00
screenInfo.hpp Reimplement the VT tab stop functionality (#5173) 2020-04-01 12:49:27 +00:00
scrolling.cpp Accessibility: Set-up UIA Tree (#1691) 2019-07-29 15:21:15 -07:00
scrolling.hpp Initial release of the Windows Terminal source code 2019-05-02 15:29:04 -07:00
selection.cpp Move rect expansion to textbuffer; refactor selection code (#4560) 2020-02-27 16:42:26 -08:00
selection.hpp Move rect expansion to textbuffer; refactor selection code (#4560) 2020-02-27 16:42:26 -08:00
selectionInput.cpp Fix a bunch of spelling errors across the project (#4295) 2020-02-10 20:40:01 +00:00
selectionState.cpp Fix a bunch of spelling errors across the project (#4295) 2020-02-10 20:40:01 +00:00
server.h Move MouseInput from TermAdapter to TermInput (#4848) 2020-03-12 22:25:43 +00:00
settings.cpp Fix a bunch of spelling errors across the project (#4295) 2020-02-10 20:40:01 +00:00
settings.hpp Add support for the DECSCNM screen mode (#3817) 2020-01-22 22:29:50 +00:00
sources.inc Merged PR 4560408: [Git2Git] LKG9 optimizer workaround 2020-04-21 17:44:56 +00:00
sources.test.inc Initial release of the Windows Terminal source code 2019-05-02 15:29:04 -07:00
srvinit.cpp Change NULL to nullptr since they are pointers (#4960) 2020-03-20 20:35:12 +00:00
srvinit.h add clang-format conf to the project, format the c++ code (#1141) 2019-06-11 13:27:09 -07:00
stream.cpp add clang-format conf to the project, format the c++ code (#1141) 2019-06-11 13:27:09 -07:00
stream.h add clang-format conf to the project, format the c++ code (#1141) 2019-06-11 13:27:09 -07:00
telemetry.cpp Fix a bunch of spelling errors across the project (#4295) 2020-02-10 20:40:01 +00:00
telemetry.hpp Fix a bunch of spelling errors across the project (#4295) 2020-02-10 20:40:01 +00:00
tracing.cpp UIA: Fix GetVisibleRanges() and add Tracing (#4495) 2020-02-20 23:50:43 +00:00
tracing.hpp UIA: Fix GetVisibleRanges() and add Tracing (#4495) 2020-02-20 23:50:43 +00:00
utf8ToWideCharParser.cpp Fix a bunch of spelling errors across the project (#4295) 2020-02-10 20:40:01 +00:00
utf8ToWideCharParser.hpp add clang-format conf to the project, format the c++ code (#1141) 2019-06-11 13:27:09 -07:00
utils.cpp add clang-format conf to the project, format the c++ code (#1141) 2019-06-11 13:27:09 -07:00
utils.hpp Fix a bunch of spelling errors across the project (#4295) 2020-02-10 20:40:01 +00:00
VtInputThread.cpp Enable Passthrough for VT Input Mode in ConPty (#4856) 2020-03-10 22:07:14 +00:00
VtInputThread.hpp Unify UTF-8 handling using til::u8u16 & revise WriteConsoleAImpl (#4422) 2020-02-03 18:06:55 -08:00
VtIo.cpp Add support for "reflow"ing the Terminal buffer (#4741) 2020-03-12 17:43:37 -07:00
VtIo.hpp Add support for "reflow"ing the Terminal buffer (#4741) 2020-03-12 17:43:37 -07:00
writeData.cpp Removed using namespace directive from header files (#955) 2019-05-30 11:14:21 -07:00
writeData.hpp Initial release of the Windows Terminal source code 2019-05-02 15:29:04 -07:00