intel: add minimal implementation of view functions

The hardware states are simply zeroed.
diff --git a/icd/intel/view.c b/icd/intel/view.c
new file mode 100644
index 0000000..b2bf100
--- /dev/null
+++ b/icd/intel/view.c
@@ -0,0 +1,178 @@
+/*
+ * XGL
+ *
+ * Copyright (C) 2014 LunarG, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include "dev.h"
+#include "gpu.h"
+#include "img.h"
+#include "mem.h"
+#include "view.h"
+
+void intel_null_view_init(struct intel_null_view *view,
+                          struct intel_dev *dev)
+{
+    memset(view, 0, sizeof(*view));
+}
+
+void intel_mem_view_init(struct intel_mem_view *view,
+                         struct intel_dev *dev,
+                         const XGL_MEMORY_VIEW_ATTACH_INFO *info)
+{
+    memset(view, 0, sizeof(*view));
+
+    view->mem = intel_mem(info->mem);
+}
+
+static void img_view_destroy(struct intel_obj *obj)
+{
+    struct intel_img_view *view = intel_img_view_from_obj(obj);
+
+    intel_img_view_destroy(view);
+}
+
+XGL_RESULT intel_img_view_create(struct intel_dev *dev,
+                                 const XGL_IMAGE_VIEW_CREATE_INFO *info,
+                                 struct intel_img_view **view_ret)
+{
+    struct intel_img *img = intel_img(info->image);
+    struct intel_img_view *view;
+
+    view = (struct intel_img_view *) intel_base_create(dev, sizeof(*view),
+            dev->base.dbg, XGL_DBG_OBJECT_IMAGE_VIEW, info, 0);
+    if (!view)
+        return XGL_ERROR_OUT_OF_MEMORY;
+
+    view->obj.destroy = img_view_destroy;
+
+    view->img = img;
+    view->swizzles = info->channels;
+    view->min_lod = info->minLod;
+
+    *view_ret = view;
+
+    return XGL_SUCCESS;
+}
+
+void intel_img_view_destroy(struct intel_img_view *view)
+{
+    intel_base_destroy(&view->obj.base);
+}
+
+static void rt_view_destroy(struct intel_obj *obj)
+{
+    struct intel_rt_view *view = intel_rt_view_from_obj(obj);
+
+    intel_rt_view_destroy(view);
+}
+
+XGL_RESULT intel_rt_view_create(struct intel_dev *dev,
+                                const XGL_COLOR_ATTACHMENT_VIEW_CREATE_INFO *info,
+                                struct intel_rt_view **view_ret)
+{
+    struct intel_img *img = intel_img(info->image);
+    struct intel_rt_view *view;
+
+    view = (struct intel_rt_view *) intel_base_create(dev, sizeof(*view),
+            dev->base.dbg, XGL_DBG_OBJECT_COLOR_TARGET_VIEW, info, 0);
+    if (!view)
+        return XGL_ERROR_OUT_OF_MEMORY;
+
+    view->obj.destroy = rt_view_destroy;
+
+    view->img = img;
+
+    *view_ret = view;
+
+    return XGL_SUCCESS;
+}
+
+void intel_rt_view_destroy(struct intel_rt_view *view)
+{
+    intel_base_destroy(&view->obj.base);
+}
+
+static void ds_view_destroy(struct intel_obj *obj)
+{
+    struct intel_ds_view *view = intel_ds_view_from_obj(obj);
+
+    intel_ds_view_destroy(view);
+}
+
+XGL_RESULT intel_ds_view_create(struct intel_dev *dev,
+                                const XGL_DEPTH_STENCIL_VIEW_CREATE_INFO *info,
+                                struct intel_ds_view **view_ret)
+{
+    struct intel_img *img = intel_img(info->image);
+    struct intel_ds_view *view;
+
+    view = (struct intel_ds_view *) intel_base_create(dev, sizeof(*view),
+            dev->base.dbg, XGL_DBG_OBJECT_DEPTH_STENCIL_VIEW, info, 0);
+    if (!view)
+        return XGL_ERROR_OUT_OF_MEMORY;
+
+    view->obj.destroy = ds_view_destroy;
+
+    view->img = img;
+
+    *view_ret = view;
+
+    return XGL_SUCCESS;
+}
+
+void intel_ds_view_destroy(struct intel_ds_view *view)
+{
+    intel_base_destroy(&view->obj.base);
+}
+
+XGL_RESULT XGLAPI intelCreateImageView(
+    XGL_DEVICE                                  device,
+    const XGL_IMAGE_VIEW_CREATE_INFO*           pCreateInfo,
+    XGL_IMAGE_VIEW*                             pView)
+{
+    struct intel_dev *dev = intel_dev(device);
+
+    return intel_img_view_create(dev, pCreateInfo,
+            (struct intel_img_view **) pView);
+}
+
+XGL_RESULT XGLAPI intelCreateColorAttachmentView(
+    XGL_DEVICE                                  device,
+    const XGL_COLOR_ATTACHMENT_VIEW_CREATE_INFO* pCreateInfo,
+    XGL_COLOR_ATTACHMENT_VIEW*                  pView)
+{
+    struct intel_dev *dev = intel_dev(device);
+
+    return intel_rt_view_create(dev, pCreateInfo,
+            (struct intel_rt_view **) pView);
+}
+
+XGL_RESULT XGLAPI intelCreateDepthStencilView(
+    XGL_DEVICE                                  device,
+    const XGL_DEPTH_STENCIL_VIEW_CREATE_INFO*   pCreateInfo,
+    XGL_DEPTH_STENCIL_VIEW*                     pView)
+{
+    struct intel_dev *dev = intel_dev(device);
+
+    return intel_ds_view_create(dev, pCreateInfo,
+            (struct intel_ds_view **) pView);
+}