egl_dri2: Hookup gbm as drm platform

1 files changed, 72 insertions, 27 deletions

diff --git a/src/egl/drivers/dri2/platform_drm.c b/src/egl/drivers/dri2/platform_drm.c
index 27846de39d2..579baf9f9d2 100644
--- a/src/egl/drivers/dri2/platform_drm.c
+++ b/src/egl/drivers/dri2/platform_drm.c
@@ -33,6 +33,50 @@
 
 #include "egl_dri2.h"
 
+static _EGLImage *
+dri2_create_image_khr_pixmap(_EGLDisplay *disp, _EGLContext *ctx,
+			     EGLClientBuffer buffer, const EGLint *attr_list)
+{
+   struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
+   struct gbm_dri_bo *dri_bo = gbm_dri_bo((struct gbm_bo *) buffer);
+   struct dri2_egl_image *dri2_img;
+
+   dri2_img = malloc(sizeof *dri2_img);
+   if (!dri2_img) {
+      _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr_pixmap");
+      return NULL;
+   }
+
+   if (!_eglInitImage(&dri2_img->base, disp)) {
+      free(dri2_img);
+      return NULL;
+   }
+
+   dri2_img->dri_image = dri2_dpy->image->dupImage(dri_bo->image, dri2_img);
+   if (dri2_img->dri_image == NULL) {
+      free(dri2_img);
+      _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr_pixmap");
+      return NULL;
+   }
+
+   return &dri2_img->base;
+}
+
+static _EGLImage *
+dri2_drm_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
+                          _EGLContext *ctx, EGLenum target,
+                          EGLClientBuffer buffer, const EGLint *attr_list)
+{
+   (void) drv;
+
+   switch (target) {
+   case EGL_NATIVE_PIXMAP_KHR:
+      return dri2_create_image_khr_pixmap(disp, ctx, buffer, attr_list);
+   default:
+      return dri2_create_image_khr(drv, disp, ctx, target, buffer, attr_list);
+   }
+}
+
 static int
 dri2_drm_authenticate(_EGLDisplay *disp, uint32_t id)
 {
@@ -45,57 +89,58 @@ EGLBoolean
 dri2_initialize_drm(_EGLDriver *drv, _EGLDisplay *disp)
 {
    struct dri2_egl_display *dri2_dpy;
+   struct gbm_device *gbm;
    int i;
 
    dri2_dpy = malloc(sizeof *dri2_dpy);
    if (!dri2_dpy)
       return _eglError(EGL_BAD_ALLOC, "eglInitialize");
-   
+
    memset(dri2_dpy, 0, sizeof *dri2_dpy);
 
    disp->DriverData = (void *) dri2_dpy;
-   dri2_dpy->fd = (int) (intptr_t) disp->PlatformDisplay;
 
-   dri2_dpy->driver_name = dri2_get_driver_for_fd(dri2_dpy->fd);
-   if (dri2_dpy->driver_name == NULL)
-      return _eglError(EGL_BAD_ALLOC, "DRI2: failed to get driver name");
+   gbm = (struct gbm_device *) disp->PlatformDisplay;
+   if (strcmp(gbm_device_get_backend_name(gbm), "drm") != 0) {
+      free(dri2_dpy);
+      return EGL_FALSE;
+   }
 
-   dri2_dpy->device_name = dri2_get_device_name_for_fd(dri2_dpy->fd);
-   if (dri2_dpy->device_name == NULL) {
-      _eglError(EGL_BAD_ALLOC, "DRI2: failed to get device name");
-      goto cleanup_driver_name;
+   dri2_dpy->gbm_dri = gbm_dri_device(gbm);
+   if (dri2_dpy->gbm_dri->base.type != GBM_DRM_DRIVER_TYPE_DRI) {
+      free(dri2_dpy);
+      return EGL_FALSE;
    }
 
-   if (!dri2_load_driver(disp))
-      goto cleanup_device_name;
+   dri2_dpy->fd = gbm_device_get_fd(gbm);
+   dri2_dpy->device_name = dri2_get_device_name_for_fd(dri2_dpy->fd);
+   dri2_dpy->driver_name = dri2_dpy->gbm_dri->base.driver_name;
+
+   dri2_dpy->dri_screen = dri2_dpy->gbm_dri->screen;
+   dri2_dpy->core = dri2_dpy->gbm_dri->core;
+   dri2_dpy->dri2 = dri2_dpy->gbm_dri->dri2;
+   dri2_dpy->image = dri2_dpy->gbm_dri->image;
+   dri2_dpy->driver_configs = dri2_dpy->gbm_dri->driver_configs;
 
-   dri2_dpy->extensions[0] = &image_lookup_extension.base;
-   dri2_dpy->extensions[1] = &use_invalidate.base;
-   dri2_dpy->extensions[2] = NULL;
+   dri2_dpy->gbm_dri->lookup_image = dri2_lookup_egl_image;
+   dri2_dpy->gbm_dri->lookup_user_data = disp;
 
-   if (!dri2_create_screen(disp))
-      goto cleanup_driver;
+   dri2_setup_screen(disp);
 
    for (i = 0; dri2_dpy->driver_configs[i]; i++)
-      dri2_add_config(disp, dri2_dpy->driver_configs[i], i + 1, 0, 0, NULL);
+      dri2_add_config(disp, dri2_dpy->driver_configs[i],
+                      i + 1, 0, 0, NULL);
+
+   drv->API.CreateImageKHR = dri2_drm_create_image_khr;
 
 #ifdef HAVE_WAYLAND_PLATFORM
    disp->Extensions.WL_bind_wayland_display = EGL_TRUE;
 #endif
    dri2_dpy->authenticate = dri2_drm_authenticate;
-   
+
    /* we're supporting EGL 1.4 */
    disp->VersionMajor = 1;
    disp->VersionMinor = 4;
 
    return EGL_TRUE;
-
- cleanup_driver:
-   dlclose(dri2_dpy->driver);
- cleanup_device_name:
-   free(dri2_dpy->device_name);
- cleanup_driver_name:
-   free(dri2_dpy->driver_name);
-
-   return EGL_FALSE;
 }