[Mesa-dev] [PATCH demos 1/2] eglut: Add wayland support
zhiwen.wu at linux.intel.com
zhiwen.wu at linux.intel.com
Tue May 1 23:52:04 PDT 2012
From: Alex Wu <zhiwen.wu at linux.intel.com>
This patch adds wayland support for eglut, so that the demos based
on eglut can run on wayland platform.
---
configure.ac | 14 ++++
src/egl/eglut/Makefile.am | 15 ++++-
src/egl/eglut/eglut_wayland.c | 135 +++++++++++++++++++++++++++++++++++++++++
3 files changed, 163 insertions(+), 1 deletions(-)
create mode 100644 src/egl/eglut/eglut_wayland.c
diff --git a/configure.ac b/configure.ac
index 4f6f16f..be9caa1 100644
--- a/configure.ac
+++ b/configure.ac
@@ -206,6 +206,16 @@ if test "x$x11_enabled" != "xno"; then
PKG_CHECK_MODULES(X11, [x11 xext], [x11_enabled=yes], [x11_enabled=no])
fi
+AC_ARG_ENABLE([wayland],
+ [AS_HELP_STRING([--enable-wayland],
+ [enable support for wayland @<:@default=no@:>@])],
+ [wayland_enabled="$enableval"],
+ [wayland_enabled=no])
+
+if test "x$wayland_enabled" != "xno"; then
+ PKG_CHECK_MODULES(WAYLAND, [wayland-client wayland-egl], [wayland_enabled=yes], [wayland_enabled=no])
+fi
+
dnl GBM is needed for EGL on KMS
AC_ARG_ENABLE([gbm],
[AS_HELP_STRING([--enable-gbm],
@@ -283,6 +293,9 @@ AC_SUBST([OSMESA_LIBS])
AC_SUBST([OSMESA16_LIBS])
AC_SUBST([OSMESA32_LIBS])
AC_SUBST([MESA_GLAPI])
+AC_SUBST([WAYLAND_CFLAGS])
+AC_SUBST([WAYLAND_LIBS])
+
AM_CONDITIONAL(HAVE_EGL, test "x$egl_enabled" = "xyes")
AM_CONDITIONAL(HAVE_GLESV1, test "x$glesv1_enabled" = "xyes")
@@ -296,6 +309,7 @@ AM_CONDITIONAL(HAVE_OSMESA, test "x$osmesa_enabled" = "xyes")
AM_CONDITIONAL(HAVE_DRM, test "x$drm_enabled" = "xyes")
AM_CONDITIONAL(BUILD_GLTRACE, false)
AM_CONDITIONAL(HAVE_MESA_SOURCE, test "x$mesa_source_enabled" = "xyes")
+AM_CONDITIONAL(HAVE_WAYLAND, test "x$wayland_enabled" = "xyes")
AC_OUTPUT([
Makefile
diff --git a/src/egl/eglut/Makefile.am b/src/egl/eglut/Makefile.am
index f0ab283..2d2f2af 100644
--- a/src/egl/eglut/Makefile.am
+++ b/src/egl/eglut/Makefile.am
@@ -29,7 +29,11 @@ if HAVE_EGL
if HAVE_X11
eglut_x11 = libeglut_x11.la
endif
-noinst_LTLIBRARIES = libeglut_screen.la $(eglut_x11)
+if HAVE_WAYLAND
+eglut_wayland = libeglut_wayland.la
+endif
+
+noinst_LTLIBRARIES = libeglut_screen.la $(eglut_x11) $(eglut_wayland)
endif
libeglut_screen_la_SOURCES = \
@@ -44,3 +48,12 @@ libeglut_x11_la_SOURCES = \
eglut_x11.c
libeglut_x11_la_CFLAGS = $(X11_CFLAGS) $(EGL_CFLAGS)
libeglut_x11_la_LIBADD = $(X11_LIBS) $(EGL_LIBS)
+
+
+libeglut_wayland_la_SOURCES = \
+ eglut.c \
+ eglutint.h \
+ eglut_wayland.c
+
+libeglut_wayland_la_CFLAGS = $(WAYLAND_CFLAGS) $(EGL_CFLAGS)
+libeglut_wayland_la_LIBADD = $(WAYLAND_LIBS) $(EGL_LIBS)
diff --git a/src/egl/eglut/eglut_wayland.c b/src/egl/eglut/eglut_wayland.c
new file mode 100644
index 0000000..61207d2
--- /dev/null
+++ b/src/egl/eglut/eglut_wayland.c
@@ -0,0 +1,135 @@
+#include <wayland-client.h>
+#include <wayland-egl.h>
+
+#include "eglutint.h"
+
+struct display {
+ struct wl_display *display;
+ struct wl_compositor *compositor;
+ struct wl_shell *shell;
+ uint32_t mask;
+};
+
+struct window {
+ struct wl_surface *surface;
+ struct wl_shell_surface *shell_surface;
+ struct wl_callback *callback;
+};
+
+static struct display display = {0, };
+static struct window window = {0, };
+
+static void
+display_handle_global(struct wl_display *display, uint32_t id,
+ const char *interface, uint32_t version, void *data)
+{
+ struct display *d = data;
+
+ if (strcmp(interface, "wl_compositor") == 0) {
+ d->compositor =
+ wl_display_bind(display, id, &wl_compositor_interface);
+ } else if (strcmp(interface, "wl_shell") == 0) {
+ d->shell = wl_display_bind(display, id, &wl_shell_interface);
+ }
+}
+
+static int
+event_mask_update(uint32_t mask, void *data)
+{
+ struct display *d = data;
+
+ d->mask = mask;
+
+ return 0;
+}
+
+void
+_eglutNativeInitDisplay(void)
+{
+ _eglut->native_dpy = display.display = wl_display_connect(NULL);
+
+ if (!_eglut->native_dpy)
+ _eglutFatal("failed to initialize native display");
+
+ wl_display_add_global_listener(_eglut->native_dpy,
+ display_handle_global, &display);
+
+ wl_display_get_fd(_eglut->native_dpy, event_mask_update, &display);
+ wl_display_iterate(_eglut->native_dpy, WL_DISPLAY_READABLE);
+
+ _eglut->surface_type = EGL_WINDOW_BIT;
+}
+
+void
+_eglutNativeFiniDisplay(void)
+{
+ wl_display_flush(_eglut->native_dpy);
+ wl_display_disconnect(_eglut->native_dpy);
+}
+
+void
+_eglutNativeInitWindow(struct eglut_window *win, const char *title,
+ int x, int y, int w, int h)
+{
+ struct wl_egl_window *native;
+
+ window.surface = wl_compositor_create_surface(display.compositor);
+ window.shell_surface = wl_shell_get_shell_surface(display.shell,
+ window.surface);
+ native = wl_egl_window_create(window.surface, w, h);
+
+ wl_shell_surface_set_toplevel(window.shell_surface);
+
+ win->native.u.window = native;
+ win->native.width = w;
+ win->native.height = h;
+}
+
+void
+_eglutNativeFiniWindow(struct eglut_window *win)
+{
+ wl_egl_window_destroy(win->native.u.window);
+
+ wl_shell_surface_destroy(window.shell_surface);
+ wl_surface_destroy(window.surface);
+
+ if (window.callback)
+ wl_callback_destroy(window.callback);
+}
+
+static void
+draw(void *data, struct wl_callback *callback, uint32_t time);
+
+static const struct wl_callback_listener frame_listener = {
+ draw
+};
+
+static void
+draw(void *data, struct wl_callback *callback, uint32_t time)
+{
+ struct window *window = (struct window *)data;
+ struct eglut_window *win = _eglut->current;
+
+ if (win->display_cb)
+ win->display_cb();
+ eglSwapBuffers(_eglut->dpy, win->surface);
+
+ if (callback)
+ wl_callback_destroy(callback);
+
+ window->callback = wl_surface_frame(window->surface);
+ wl_callback_add_listener(window->callback, &frame_listener, window);
+}
+
+void
+_eglutNativeEventLoop(void)
+{
+ draw(&window, NULL, 0);
+
+ while (1) {
+ wl_display_iterate(display.display, display.mask);
+
+ if (_eglut->idle_cb)
+ _eglut->idle_cb();
+ }
+}
--
1.7.5.4
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