Remove RenderSurface from Core

[platform/core/uifw/dali-core.git] / dali / internal / render / renderers / render-frame-buffer.h

diff --git a/dali/internal/render/renderers/render-frame-buffer.h b/dali/internal/render/renderers/render-frame-buffer.h
index 16d2a73..bbd2bf0 100644 (file)
--- a/dali/internal/render/renderers/render-frame-buffer.h
+++ b/dali/internal/render/renderers/render-frame-buffer.h
@@ -2,7 +2,7 @@
 #define DALI_INTERNAL_RENDER_FRAME_BUFFER_H
 
 /*
- * Copyright (c) 2019 Samsung Electronics Co., Ltd.
+ * Copyright (c) 2020 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.
@@ -19,16 +19,20 @@
 
 // INTERNAL INCLUDES
 #include <dali/public-api/rendering/frame-buffer.h>
+#include <dali/devel-api/rendering/frame-buffer-devel.h>
 #include <dali/internal/render/gl-resources/context.h>
 #include <dali/internal/render/renderers/render-sampler.h>
 #include <dali/integration-api/gl-defines.h>
 
 namespace Dali
 {
+using Mask = Dali::FrameBuffer::Attachment::Mask;
+
 namespace Internal
 {
 namespace Render
 {
+class Texture;
 
 class FrameBuffer
 {
@@ -37,53 +41,69 @@ public:
   /**
    * Constructor
    */
-  FrameBuffer() {};
+  FrameBuffer( uint32_t width, uint32_t height, Mask attachments );
 
   /**
    * Destructor
    */
-  virtual ~FrameBuffer() {};
+  virtual ~FrameBuffer();
 
   /**
    * Creates a FrameBuffer object in the GPU.
    * @param[in] context The GL context
    */
-  virtual void Initialize( Context& context ) = 0;
+  virtual void Initialize( Context& context );
 
   /**
    * Deletes the framebuffer object from the GPU
    * @param[in] context The GL context
    */
-  virtual void Destroy( Context& context ) = 0;
+  virtual void Destroy( Context& context );
 
   /**
    * Called by RenderManager to inform the framebuffer that the context has been destroyed
    */
-  virtual void GlContextDestroyed() = 0;
+  virtual void GlContextDestroyed();
 
   /**
    * @brief Bind the framebuffer
    * @param[in] context The GL context
    */
-  virtual void Bind( Context& context ) = 0;
+  virtual void Bind( Context& context );
 
   /**
    * @brief Get the width of the FrameBuffer
    * @return The width of the framebuffer
    */
-  virtual uint32_t GetWidth() const = 0;
+  virtual uint32_t GetWidth() const;
 
   /**
    * @brief Get the height of the FrameBuffer
    * @return The height of the framebuffer
    */
-  virtual uint32_t GetHeight() const = 0;
+  virtual uint32_t GetHeight() const;
+
+  /**
+   * @brief Attach a texture for color rendering. Valid only for Framebuffers with COLOR attachments.
+   * @param[in] context The GL context
+   * @param[in] texture The texture that will be used as output when rendering
+   * @param[in] mipmapLevel The mipmap of the texture to be attached
+   * @param[in] layer Indicates which layer of a cube map or array texture to attach. Unused for 2D textures
+   * @note A maximum of Dali::FrameBuffer::MAX_COLOR_ATTACHMENTS are supported.
+   */
+  void AttachColorTexture( Context& context, Render::Texture* texture, uint32_t mipmapLevel, uint32_t layer );
 
   /**
-   * @brief Check whether the FrameBuffer is backed by a render surface
-   * @return True if the FrameBuffer is backed by a render surface
+   * @brief Get the number of textures bound to this frame buffer as color attachments.
+   * @return The number of color attachments.
    */
-  virtual bool IsSurfaceBacked() = 0;
+  uint8_t GetColorAttachmentCount() const { return mColorAttachmentCount; }
+
+  /**
+   * @brief Get the id (OpenGL handle) of the texture bound to this frame buffer as color attachment @a index.
+   * @return The texture id.
+   */
+  GLuint GetTextureId(uint8_t index) { return mTextureId[index]; };
 
 private:
 
@@ -97,6 +117,15 @@ private:
    */
   FrameBuffer& operator=( const FrameBuffer& rhs ) = delete;
 
+private:
+
+  GLuint mId;
+  GLuint mTextureId[ Dali::DevelFrameBuffer::MAX_COLOR_ATTACHMENTS ];
+  GLuint mDepthBuffer;
+  GLuint mStencilBuffer;
+  uint32_t mWidth;
+  uint32_t mHeight;
+  uint8_t mColorAttachmentCount;
 };
 
 } // namespace Render