From: Eero Tamminen <[email protected]> This emulates extra drawing work by usleep().
This is an enhancement to reproduce the problem in the bug report. Bug: https://bugs.freedesktop.org/show_bug.cgi?id=98833 Signed-off-by: Pekka Paalanen <[email protected]> --- clients/simple-egl.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/clients/simple-egl.c b/clients/simple-egl.c index 9b6fa1f..c5ee05d 100644 --- a/clients/simple-egl.c +++ b/clients/simple-egl.c @@ -100,7 +100,7 @@ struct window { struct ivi_surface *ivi_surface; EGLSurface egl_surface; struct wl_callback *callback; - int fullscreen, opaque, buffer_size, frame_sync; + int fullscreen, opaque, buffer_size, frame_sync, delay; bool wait_for_configure; }; @@ -548,6 +548,8 @@ redraw(void *data, struct wl_callback *callback, uint32_t time) glDisableVertexAttribArray(window->gl.pos); glDisableVertexAttribArray(window->gl.col); + usleep(window->delay); + if (window->opaque || window->fullscreen) { region = wl_compositor_create_region(window->display->compositor); wl_region_add(region, 0, 0, @@ -850,6 +852,7 @@ usage(int error_code) " -o\tCreate an opaque surface\n" " -s\tUse a 16 bpp EGL config\n" " -b\tDon't sync to compositor redraw (eglSwapInterval 0)\n" + " -d <us>\tBuffer swap delay in microseconds\n" " -h\tThis help text\n\n"); exit(error_code); @@ -870,9 +873,12 @@ main(int argc, char **argv) window.window_size = window.geometry; window.buffer_size = 32; window.frame_sync = 1; + window.delay = 0; for (i = 1; i < argc; i++) { - if (strcmp("-f", argv[i]) == 0) + if (strcmp("-d", argv[i]) == 0 && i+1 < argc) + window.delay = atoi(argv[++i]); + else if (strcmp("-f", argv[i]) == 0) window.fullscreen = 1; else if (strcmp("-o", argv[i]) == 0) window.opaque = 1; -- 2.10.2 _______________________________________________ wayland-devel mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/wayland-devel
