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[patch] Patch for KMSDRM to support GetDisplayDPI

SDL_kmsdrmvideo_add_getDPI.diff (text/plain), 1.60 KB, created by bms20 on 2020-09-14 01:46:24 UTC

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Description:

Filename:

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Creator: bms20

Created: 2020-09-14 01:46:24 UTC

Size: 1.60 KB

patch

obsolete

>diff -r e0220c4bc306 src/video/kmsdrm/SDL_kmsdrmvideo.c
>--- a/src/video/kmsdrm/SDL_kmsdrmvideo.c	Mon Sep 07 20:10:50 2020 -0700
>+++ b/src/video/kmsdrm/SDL_kmsdrmvideo.c	Sun Sep 13 18:44:11 2020 -0700
>@@ -709,6 +709,38 @@
>     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)
> {
>@@ -753,6 +785,10 @@
>     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;

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Attachments on bug 5286: 4463

We are currently migrating Bugzilla to GitHub issues.Any changes made to the bug tracker now will be lost, so please do not post new bugs or make changes to them.When we're done, all bug URLs will redirect to their equivalent location on the new bug tracker.

We are currently migrating Bugzilla to GitHub issues.
Any changes made to the bug tracker now will be lost, so please do not post new bugs or make changes to them.
When we're done, all bug URLs will redirect to their equivalent location on the new bug tracker.