eden-emu/SDL
15
0
Fork 0
mirror of https://github.com/libsdl-org/SDL.git synced 2025-06-02 01:47:41 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 3

testwm2: Fix video modes menu hit detection when highdpi or logical size used (#4936)

Browse source 
* SDLTest_CommonDrawWindowInfo: log SDL_RenderGetScale, SDL_RenderGetLogicalSize

* testwm2: fix video modes menu hit detection in High DPI cases

- also when logical size is specified, e.g.
  `--logical 640x480 --resizable --allow-highdpi`

* add function to determine logical coordinates of renderer point when given window point

* change since to the targeted milestone

* fix typo

* rename for consistency

* Change logical coordinate type to float, since we can render with floating point precision.

* add function to convert logical to window coordinates

* testwm2: use new SDL_RenderWindowToLogical

* SDL_render.c: alternate SDL_RenderWindowToLogical/SDL_RenderLogicalToWindow

Co-authored-by: John Blat <johnblat64@protonmail.com>
Co-authored-by: John Blat <47202511+johnblat64@users.noreply.github.com>
This commit is contained in:
Eric Wasylishen 2021-11-09 22:03:42 -07:00 • committed by GitHub
parent 27ce914463
commit 0d98793693
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
6 changed files with 103 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

42
include/SDL_render.h
View file

@ -979,6 +979,48 @@ extern DECLSPEC int SDLCALL SDL_RenderSetScale(SDL_Renderer * renderer,
extern DECLSPEC void SDLCALL SDL_RenderGetScale(SDL_Renderer * renderer,
float *scaleX, float *scaleY);
/**
* Get logical coordinates of point in renderer when given real coordinates of point in window.
* Logical coordinates will differ from real coordinates when render is scaled and logical renderer size set
*
* \param renderer the renderer from which the logical coordinates should be calcualted
* \param windowX the real X coordinate in the window
* \param windowY the real Y coordinate in the window
* \param logicalX the pointer filled with the logical x coordinate
* \param logicalY the pointer filled with the logical y coordinate
*
* \since This function is available since SDL 2.0.20.
*
* \sa SDL_RenderGetScale
* \sa SDL_RenderSetScale
* \sa SDL_RenderGetLogicalSize
* \sa SDL_RenderSetLogicalSize
*/
extern DECLSPEC void SDLCALL SDL_RenderWindowToLogical(SDL_Renderer * renderer,
int windowX, int windowY,
float *logicalX, float *logicalY);
/**
* Get real coordinates of point in window when given logical coordinates of point in renderer.
* Logical coordinates will differ from real coordinates when render is scaled and logical renderer size set
*
* \param renderer the renderer from which the window coordinates should be calculated
* \param logicalX the logical x coordinate
* \param logicalY the logical y coordinate
* \param windowX the pointer filled with the real X coordinate in the window
* \param windowY the pointer filled with the real Y coordinate in the window
*
* \since This function is available since SDL 2.0.20.
*
* \sa SDL_RenderGetScale
* \sa SDL_RenderSetScale
* \sa SDL_RenderGetLogicalSize
* \sa SDL_RenderSetLogicalSize
*/
extern DECLSPEC void SDLCALL SDL_RenderLogicalToWindow(SDL_Renderer * renderer,
float logicalX, float logicalY,
int *windowX, int *windowY);
/**
* Set the color used for drawing operations (Rect, Line and Clear).
*