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workaround for libmali gbm_device_get_fd() 

gbm_device_get_fd() in at least some libmali versions duplicates handle.
Other implementations do not do duplication. To prevent handle leak save
drm_fd in SDL_DisplayData.
This commit is contained in:
Davis Mosenkovs 2021-12-01 01:33:57 +02:00 committed by Sam Lantinga
parent 0c7c4bfcf9
commit 66b0a6ee15
4 changed files with 7 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
src/video/kmsdrm/SDL_kmsdrmmouse.c
View File

@ -73,6 +73,7 @@ KMSDRM_DestroyCursorBO (_THIS, SDL_VideoDisplay *display)
if (dispdata->cursor_bo) {
KMSDRM_gbm_bo_destroy(dispdata->cursor_bo);
dispdata->cursor_bo = NULL;
dispdata->cursor_bo_drm_fd = -1;
}
}
@ -116,6 +117,8 @@ KMSDRM_CreateCursorBO (SDL_VideoDisplay *display) {
SDL_SetError("Could not create GBM cursor BO");
return;
}
dispdata->cursor_bo_drm_fd = viddata->drm_fd;
}
/* Remove a cursor buffer from a display's DRM cursor BO. */
@ -384,11 +387,9 @@ KMSDRM_WarpMouseGlobal(int x, int y)
/* And now update the cursor graphic position on screen. */
if (dispdata->cursor_bo) {
int drm_fd;
int ret = 0;
drm_fd = KMSDRM_gbm_device_get_fd(KMSDRM_gbm_bo_get_device(dispdata->cursor_bo));
ret = KMSDRM_drmModeMoveCursor(drm_fd, dispdata->crtc->crtc_id, x, y);
ret = KMSDRM_drmModeMoveCursor(dispdata->cursor_bo_drm_fd, dispdata->crtc->crtc_id, x, y);
if (ret) {
SDL_SetError("drmModeMoveCursor() failed.");
@ -437,7 +438,6 @@ static void
KMSDRM_MoveCursor(SDL_Cursor * cursor)
{
SDL_Mouse *mouse = SDL_GetMouse();
int drm_fd;
int ret = 0;
/* We must NOT call SDL_SendMouseMotion() here or we will enter recursivity!
@ -452,9 +452,7 @@ KMSDRM_MoveCursor(SDL_Cursor * cursor)
return;
}
drm_fd = KMSDRM_gbm_device_get_fd(KMSDRM_gbm_bo_get_device(dispdata->cursor_bo));
ret = KMSDRM_drmModeMoveCursor(drm_fd, dispdata->crtc->crtc_id, mouse->x, mouse->y);
ret = KMSDRM_drmModeMoveCursor(dispdata->cursor_bo_drm_fd, dispdata->crtc->crtc_id, mouse->x, mouse->y);
if (ret) {
SDL_SetError("drmModeMoveCursor() failed.");

1
src/video/kmsdrm/SDL_kmsdrmsym.h
View File

@ -95,7 +95,6 @@ SDL_KMSDRM_SYM(int,drmModeSetPlane,(int fd, uint32_t plane_id, uint32_t crtc_id,
/* Planes stuff ends. */
SDL_KMSDRM_MODULE(GBM)
SDL_KMSDRM_SYM(int,gbm_device_get_fd,(struct gbm_device *gbm))
SDL_KMSDRM_SYM(int,gbm_device_is_format_supported,(struct gbm_device *gbm,
uint32_t format, uint32_t usage))
SDL_KMSDRM_SYM(void,gbm_device_destroy,(struct gbm_device *gbm))

1
src/video/kmsdrm/SDL_kmsdrmvideo.c
View File

@ -555,6 +555,7 @@ KMSDRM_AddDisplay (_THIS, drmModeConnector *connector, drmModeRes *resources) {
/* Initialize some of the members of the new display's driverdata
to sane values. */
dispdata->cursor_bo = NULL;
dispdata->cursor_bo_drm_fd = -1;
/* Since we create and show the default cursor on KMSDRM_InitMouse(),
and we call KMSDRM_InitMouse() when we create a window, we have to know

1
src/video/kmsdrm/SDL_kmsdrmvideo.h
View File

@ -77,6 +77,7 @@ typedef struct SDL_DisplayData
where we may not have an SDL_Cursor at all (so no SDL_Cursor driverdata).
There's only one cursor GBM BO because we only support one cursor. */
struct gbm_bo *cursor_bo;
int cursor_bo_drm_fd;
uint64_t cursor_w, cursor_h;
SDL_bool default_cursor_init;