compositor-drm: Only call drmModeMoveCursor() if hw cursor position changed
Saves an ioctl per frame.
diff --git a/src/compositor-drm.c b/src/compositor-drm.c
index e4afe5f..ada4a03 100644
--- a/src/compositor-drm.c
+++ b/src/compositor-drm.c
@@ -108,7 +108,7 @@
struct gbm_surface *surface;
struct gbm_bo *cursor_bo[2];
- int current_cursor, cursor_free;
+ int current_cursor, cursor_free, cursor_x, cursor_y;
EGLSurface egl_surface;
struct drm_fb *current, *next;
struct backlight *backlight;
@@ -675,7 +675,7 @@
struct gbm_bo *bo;
uint32_t buf[64 * 64];
unsigned char *s;
- int i;
+ int i, x, y;
if (!output->cursor_free)
return;
@@ -702,11 +702,15 @@
return;
}
- if (drmModeMoveCursor(c->drm.fd, output->crtc_id,
- es->geometry.x - output->base.x,
- es->geometry.y - output->base.y)) {
- weston_log("failed to move cursor: %m\n");
- return;
+ x = es->geometry.x - output->base.x;
+ y = es->geometry.y - output->base.y;
+ if (output->cursor_x != x || output->cursor_y != y) {
+ if (drmModeMoveCursor(c->drm.fd, output->crtc_id, x, y)) {
+ weston_log("failed to move cursor: %m\n");
+ return;
+ }
+ output->cursor_x = x;
+ output->cursor_y = y;
}
es->plane = WESTON_PLANE_DRM_CURSOR;