Attachment 128981 Details for Bug 98833 – Patch to add frame swap delay option to weston-simple-egl

Patch to add frame swap delay option to weston-simple-egl

simple-egl-delay.patch (text/plain), 1.51 KB, created by Eero Tamminen on 2017-01-16 12:45:27 UTC

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Creator: Eero Tamminen

Created: 2017-01-16 12:45:27 UTC

Size: 1.51 KB

patch

obsolete

>Add "-d" option to emulate extra delay for drawing
>
>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;

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Attachments on bug 98833: 128240 | 128981

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