[Vulkan] Basic Vulkan backend

[platform/core/uifw/dali-core.git] / dali / graphics / vulkan / vulkan-buffer.h

diff --git a/dali/graphics/vulkan/vulkan-buffer.h b/dali/graphics/vulkan/vulkan-buffer.h
index 5cdedc6..0b67908 100644 (file)
--- a/dali/graphics/vulkan/vulkan-buffer.h
+++ b/dali/graphics/vulkan/vulkan-buffer.h
@@ -1,9 +1,22 @@
-//
-// Created by adam.b on 06/06/17.
-//
+#ifndef DALI_GRAPHICS_VULKAN_BUFFER_H
+#define DALI_GRAPHICS_VULKAN_BUFFER_H
 
-#ifndef VULKAN_PROJECT_BUFFER_H
-#define VULKAN_PROJECT_BUFFER_H
+/*
+ * Copyright (c) 2017 Samsung Electronics Co., Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
 #include <dali/graphics/vulkan/vulkan-types.h>
 
@@ -13,12 +26,101 @@ namespace Graphics
 {
 namespace Vulkan
 {
+class DeviceMemory;
+class Graphics;
+class GpuMemoryBlock;
+using GpuMemoryBlockHandle = Handle<GpuMemoryBlock>;
 
-class Buffer
+using VertexBuffer = Buffer;
+using UniformBuffer = Buffer;
+using IndexBuffer = Buffer;
+using BufferHandle = Handle<Buffer>;
+
+class Buffer : public VkManaged
 {
+public:
+
+  /**
+   * Type of the buffer
+   */
+  enum class Type
+  {
+    VERTEX,
+    INDEX,
+    UNIFORM,
+    SHADER_STORAGE
+  };
+
+  /**
+   * Destructor
+   */
+  ~Buffer() override;
+
+  /**
+   * Creates logical buffer without allocating any memory
+   * @param graphics
+   * @param size
+   * @param type
+   * @return
+   */
+  static BufferHandle New( Graphics& graphics, size_t size, Type type );
+
+  /**
+   * Returns buffer usage flags
+   * @return
+   */
+  vk::BufferUsageFlags GetUsage() const;
+
+  /**
+   * Returns buffer size in bytes
+   * @return
+   */
+  uint32_t GetSize() const;
+
+  /**
+   * Returns Vulkan VkBuffer object associated with this buffer
+   * @return
+   */
+  vk::Buffer GetVkBuffer() const;
+
+  /**
+   * Returns handle to the allocated memory
+   * @return
+   */
+  const GpuMemoryBlockHandle& GetMemoryHandle() const;
 
+  /**
+   * Binds buffer memory
+   * @param handle
+   */
+  void BindMemory( const GpuMemoryBlockHandle& handle );
+
+public:
+
+  /**
+   *
+   * @return
+   */
+  bool OnDestroy() override;
+
+
+private:
+
+  /**
+   * Creates new VkBuffer with given specification, it doesn't
+   * bind the memory.
+   * @param graphics
+   * @param createInfo
+   */
+  Buffer(Graphics& graphics, const vk::BufferCreateInfo& createInfo);
+
+private:
+
+  class Impl;
+  std::unique_ptr<Buffer::Impl> mImpl;
 };
 
+
 }
 }
 }