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kmsdrm: merge GetDisplayDPI implementation by bms20 <brett@mynah-software.com>

Manuel Alfayate Corchete 2020-10-15 17:56:19 +02:00
parent d27238751f
commit cca16c9cb1
1 changed files with 33 additions and 0 deletions
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33
src/video/kmsdrm/SDL_kmsdrmvideo.c
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@ -712,6 +712,38 @@ KMSDRM_DeleteDevice(SDL_VideoDevice * device)
SDL_KMSDRM_UnloadSymbols();
}
static int
KMSDRM_GetDisplayDPI(_THIS, SDL_VideoDisplay * display, float * ddpi, float * hdpi, float * vdpi)
{
int w, h;
uint32_t display_mm_width;
uint32_t display_mm_height;
SDL_DisplayData *dispdata;
dispdata = (SDL_DisplayData *)SDL_GetDisplayDriverData(0); //viddata->devindex);
if (!dispdata) {
return SDL_SetError("No available displays");
}
display_mm_width = dispdata->connector->connector->mmWidth;
display_mm_height = dispdata->connector->connector->mmHeight;
w = dispdata->mode.hdisplay;
h = dispdata->mode.vdisplay;
*hdpi = display_mm_width ? (((float) w) * 25.4f / display_mm_width) : 0.0f;
*vdpi = display_mm_height ? (((float) h) * 25.4f / display_mm_height) : 0.0f;
*ddpi = SDL_ComputeDiagonalDPI(w, h, ((float) display_mm_width) / 25.4f,((float) display_mm_height) / 25.4f);
return 0;
}
static SDL_VideoDevice *
KMSDRM_CreateDevice(int devindex)
{
@ -756,6 +788,7 @@ KMSDRM_CreateDevice(int devindex)
device->VideoQuit = KMSDRM_VideoQuit;
device->GetDisplayModes = KMSDRM_GetDisplayModes;
device->SetDisplayMode = KMSDRM_SetDisplayMode;
device->GetDisplayDPI = KMSDRM_GetDisplayDPI;
device->CreateSDLWindow = KMSDRM_CreateWindow;
device->CreateSDLWindowFrom = KMSDRM_CreateWindowFrom;
device->SetWindowTitle = KMSDRM_SetWindowTitle;