[gtk+/gdk-backend-wayland] wayland: Use wayland-egl

[Kristian Høgsberg <krh src gnome org>]

commit 546069f434f18966f2a82c856519ef938dfd5aa6
Author: Kristian Høgsberg <krh bitplanet net>
Date:   Tue Feb 8 16:02:22 2011 -0500

    wayland: Use wayland-egl

 gdk/wayland/gdkdisplay-wayland.c |   65 +++++++------------------------------
 gdk/wayland/gdkdisplay-wayland.h |   10 ++---
 gdk/wayland/gdkwindow-wayland.c  |   40 ++++++++---------------
 3 files changed, 31 insertions(+), 84 deletions(-)
---
diff --git a/gdk/wayland/gdkdisplay-wayland.c b/gdk/wayland/gdkdisplay-wayland.c
index cb99a38..1b74068 100644
--- a/gdk/wayland/gdkdisplay-wayland.c
+++ b/gdk/wayland/gdkdisplay-wayland.c
@@ -40,7 +40,7 @@
 #include "gdkdevicemanager-wayland.h"
 #include "gdkkeysprivate.h"
 
-#include <xf86drm.h>
+#include <wayland-egl.h>
 
 typedef struct _GdkEventTypeWayland GdkEventTypeWayland;
 
@@ -121,28 +121,6 @@ gdk_input_init (GdkDisplay *display)
 }
 
 static void
-drm_handle_device(void *data, struct wl_drm *compositor, const char *device)
-{
-  GdkDisplayWayland *display_wayland = data;
-
-  fprintf(stderr, "display name: %s\n", device);
-
-  display_wayland->device_name = g_strdup (device);
-}
-
-static void drm_handle_authenticated(void *data, struct wl_drm *drm)
-{
-  GdkDisplayWayland *display_wayland = data;
-
-  display_wayland->authenticated = TRUE;
-}
-
-static const struct wl_drm_listener drm_listener = {
-	drm_handle_device,
-	drm_handle_authenticated
-};
-
-static void
 shell_handle_configure(void *data, struct wl_shell *shell,
 		       uint32_t time, uint32_t edges,
 		       struct wl_surface *surface,
@@ -205,10 +183,6 @@ gdk_display_handle_global(struct wl_display *display, uint32_t id,
 
   if (strcmp(interface, "compositor") == 0) {
     display_wayland->compositor = wl_compositor_create(display, id);
-  } else if (strcmp(interface, "drm") == 0) {
-    display_wayland->drm = wl_drm_create(display, id);
-    wl_drm_add_listener(display_wayland->drm,
-			&drm_listener, display_wayland);
   } else if (strcmp(interface, "shell") == 0) {
     display_wayland->shell = wl_shell_create(display, id);
     wl_shell_add_listener(display_wayland->shell,
@@ -228,36 +202,17 @@ gdk_display_init_egl(GdkDisplay *display)
 {
   GdkDisplayWayland *display_wayland = GDK_DISPLAY_WAYLAND (display);
   EGLint major, minor, i;
-  drm_magic_t magic;
   void *p;
 
   static const struct { const char *f; unsigned int offset; }
   extension_functions[] = {
-    { "eglCreateDRMImageMESA", offsetof(GdkDisplayWayland, create_drm_image) },
     { "glEGLImageTargetTexture2DOES", offsetof(GdkDisplayWayland, image_target_texture_2d) },
-    { "eglExportDRMImageMESA", offsetof(GdkDisplayWayland, export_drm_image) },
+    { "eglCreateImageKHR", offsetof(GdkDisplayWayland, create_image) },
     { "eglDestroyImageKHR", offsetof(GdkDisplayWayland, destroy_image) }
   };
 
-  display_wayland->fd = open(display_wayland->device_name, O_RDWR);
-  if (display_wayland->fd < 0) {
-    fprintf(stderr, "drm open failed: %m\n");
-    return FALSE;
-  }
-
-  if (drmGetMagic(display_wayland->fd, &magic))
-    {
-      fprintf(stderr, "DRI2: failed to get drm magic");
-      return FALSE;
-    }
-
-  /* Authenticate and wait for authenticated event */
-  wl_drm_authenticate(display_wayland->drm, magic);
-  wl_display_iterate(display_wayland->wl_display, WL_DISPLAY_WRITABLE);
-  while (!display_wayland->authenticated)
-    wl_display_iterate(display_wayland->wl_display, WL_DISPLAY_READABLE);
-
-  display_wayland->egl_display = eglGetDRMDisplayMESA(display_wayland->fd);
+  display_wayland->egl_display =
+    eglGetDisplay((EGLNativeDisplayType) display_wayland->native_display);
   if (!eglInitialize(display_wayland->egl_display, &major, &minor)) {
     fprintf(stderr, "failed to initialize display\n");
     return FALSE;
@@ -318,6 +273,12 @@ _gdk_wayland_display_open (const gchar *display_name)
 
   display_wayland->wl_display = wl_display;
 
+  display_wayland->native_display = wl_egl_display_create(wl_display);
+  if (display_wayland->native_display == NULL) {
+    wl_display_destroy(wl_display);
+    return NULL;
+  }
+
   /* initialize the display's screens */
   display_wayland->screens = g_new (GdkScreen *, 1);
   for (i = 0; i < 1; i++)
@@ -332,9 +293,6 @@ _gdk_wayland_display_open (const gchar *display_name)
   wl_display_add_global_listener(display_wayland->wl_display,
 				 gdk_display_handle_global, display_wayland);
 
-  /* Process connection events. */
-  wl_display_iterate(display_wayland->wl_display, WL_DISPLAY_READABLE);
-
   gdk_display_init_egl(display);
 
   display_wayland->event_source = _gdk_wayland_display_event_source_new (display);
@@ -369,6 +327,9 @@ gdk_wayland_display_dispose (GObject *object)
       display_wayland->event_source = NULL;
     }
 
+  eglTerminate(display_wayland->egl_display);
+  wl_egl_display_destroy(display_wayland->native_display);
+
   G_OBJECT_CLASS (_gdk_display_wayland_parent_class)->dispose (object);
 }
 
diff --git a/gdk/wayland/gdkdisplay-wayland.h b/gdk/wayland/gdkdisplay-wayland.h
index d9dceaa..d7de0f0 100644
--- a/gdk/wayland/gdkdisplay-wayland.h
+++ b/gdk/wayland/gdkdisplay-wayland.h
@@ -28,6 +28,8 @@
 #include <wayland-client.h>
 #include <EGL/egl.h>
 #include <EGL/eglext.h>
+#include <GL/gl.h>
+#include <GL/glext.h>
 #include <cairo-gl.h>
 #include <glib.h>
 #include <gdk/gdkkeys.h>
@@ -139,23 +141,19 @@ struct _GdkDisplayWayland
   GdkWindow *active_offscreen_window;
 
   /* Wayland fields below */
-  char *device_name;
   struct wl_display *wl_display;
-  struct wl_drm *drm;
+  struct wl_egl_display *native_display;
   struct wl_compositor *compositor;
   struct wl_shell *shell;
   struct wl_output *output;
   struct wl_input_device *input_device;
   GSource *event_source;
-  int fd;
   EGLDisplay egl_display;
   EGLContext egl_context;
   cairo_device_t *cairo_device;
-  int authenticated;
 
-  PFNEGLCREATEDRMIMAGEMESA create_drm_image;
-  PFNEGLEXPORTDRMIMAGEMESA export_drm_image;
   PFNGLEGLIMAGETARGETTEXTURE2DOESPROC image_target_texture_2d;
+  PFNEGLCREATEIMAGEKHRPROC create_image;
   PFNEGLDESTROYIMAGEKHRPROC destroy_image;
 };
 
diff --git a/gdk/wayland/gdkwindow-wayland.c b/gdk/wayland/gdkwindow-wayland.c
index 7859e3f..419ba04 100644
--- a/gdk/wayland/gdkwindow-wayland.c
+++ b/gdk/wayland/gdkwindow-wayland.c
@@ -40,6 +40,8 @@
 #include <stdio.h>
 #include <string.h>
 
+#include <wayland-egl.h>
+
 #define WINDOW_IS_TOPLEVEL_OR_FOREIGN(window) \
   (GDK_WINDOW_TYPE (window) != GDK_WINDOW_CHILD &&   \
    GDK_WINDOW_TYPE (window) != GDK_WINDOW_OFFSCREEN)
@@ -295,6 +297,7 @@ static const cairo_user_data_key_t gdk_wayland_cairo_key;
 typedef struct _GdkWaylandCairoSurfaceData {
   EGLImageKHR image;
   GLuint texture;
+  struct wl_egl_pixmap *pixmap;
   struct wl_buffer *buffer;
   GdkDisplayWayland *display;
 } GdkWaylandCairoSurfaceData;
@@ -304,24 +307,12 @@ _gdk_wayland_surface_get_buffer (GdkDisplayWayland *display,
 				 cairo_surface_t *surface)
 {
   GdkWaylandCairoSurfaceData *data;
-  EGLint name, stride;
-  struct wl_visual *visual;
-  int width, height;
 
   data = cairo_surface_get_user_data (surface, &gdk_wayland_cairo_key);
 
-  if (data->buffer)
-    return data->buffer;
-
-  visual =
-    wl_display_get_premultiplied_argb_visual(display->wl_display);
-
-  width = cairo_gl_surface_get_width (surface);
-  height = cairo_gl_surface_get_height (surface);
-  display->export_drm_image (display->egl_display,
-			     data->image, &name, NULL, &stride);
-  data->buffer = wl_drm_create_buffer(display->drm,
-				      name, width, height, stride, visual);
+  if (!data->buffer)
+    data->buffer =
+      wl_egl_pixmap_create_buffer(display->native_display, data->pixmap);
 
   return data->buffer;
 }
@@ -387,21 +378,18 @@ gdk_wayland_create_cairo_surface (GdkDisplayWayland *display,
 {
   GdkWaylandCairoSurfaceData *data;
   cairo_surface_t *surface;
-
-  EGLint image_attribs[] = {
-    EGL_WIDTH,			0,
-    EGL_HEIGHT,			0,
-    EGL_DRM_BUFFER_FORMAT_MESA,	EGL_DRM_BUFFER_FORMAT_ARGB32_MESA,
-    EGL_DRM_BUFFER_USE_MESA,	EGL_DRM_BUFFER_USE_SCANOUT_MESA,
-    EGL_NONE
-  };
+  struct wl_visual *visual;
 
   data = g_new (GdkWaylandCairoSurfaceData, 1);
   data->display = display;
   data->buffer = NULL;
-  image_attribs[1] = width;
-  image_attribs[3] = height;
-  data->image = display->create_drm_image(display->egl_display, image_attribs);
+  visual = wl_display_get_premultiplied_argb_visual(display->wl_display);
+  data->pixmap =
+    wl_egl_pixmap_create(display->native_display, width, height, visual, 0);
+  data->image =
+    display->create_image(display->egl_display, NULL, EGL_NATIVE_PIXMAP_KHR,
+			  (EGLClientBuffer) data->pixmap, NULL);
+
   glGenTextures(1, &data->texture);
   glBindTexture(GL_TEXTURE_2D, data->texture);
   display->image_target_texture_2d(GL_TEXTURE_2D, data->image);