dali/public-api/rendering/frame-buffer.cpp

   1 /*
   2  * Copyright (c) 2020 Samsung Electronics Co., Ltd.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use *this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  *
  16  */
  17
  18 // CLASS HEADER
  19 #include <dali/public-api/rendering/frame-buffer.h>
  20
  21 // EXTERNAL INCLUDES
  22 #include <type_traits>
  23
  24 // INTERNAL INCLUDES
  25 #include <dali/integration-api/debug.h>                      // DALI_LOG_WARNING_NOFN
  26 #include <dali/internal/event/rendering/frame-buffer-impl.h> // Dali::Internal::FrameBuffer
  27 #include <dali/internal/event/rendering/texture-impl.h>      // Dali::Internal::Texture
  28
  29 namespace Dali
  30 {
  31 namespace
  32 {
  33 /// Bool operator for FrameBuffer::Attachment::Mask.
  34 /// in cpp as only used in this file
  35 bool operator&(FrameBuffer::Attachment::Mask lhs, FrameBuffer::Attachment::Mask rhs)
  36 {
  37   using UnderlyingType = typename std::underlying_type<FrameBuffer::Attachment::Mask>::type;
  38   return static_cast<bool>(static_cast<UnderlyingType>(lhs) & static_cast<UnderlyingType>(rhs));
  39 }
  40
  41 } // unnamed namespace
  42
  43 FrameBuffer FrameBuffer::New(uint32_t width, uint32_t height)
  44 {
  45   return New(width, height, FrameBuffer::Attachment::COLOR);
  46 }
  47
  48 FrameBuffer FrameBuffer::New(uint32_t width, uint32_t height, Attachment::Mask attachments)
  49 {
  50   Internal::FrameBufferPtr frameBuffer = Internal::FrameBuffer::New(width, height, attachments);
  51   if(attachments & FrameBuffer::Attachment::COLOR)
  52   {
  53     Internal::TexturePtr texture = Internal::Texture::New(Dali::TextureType::TEXTURE_2D, Pixel::RGB888, width, height);
  54     frameBuffer->AttachColorTexture(texture, 0u, 0u);
  55   }
  56   return FrameBuffer(frameBuffer.Get());
  57 }
  58
  59 FrameBuffer::FrameBuffer() = default;
  60
  61 FrameBuffer::~FrameBuffer() = default;
  62
  63 FrameBuffer::FrameBuffer(const FrameBuffer& handle) = default;
  64
  65 FrameBuffer FrameBuffer::DownCast(BaseHandle handle)
  66 {
  67   return FrameBuffer(dynamic_cast<Dali::Internal::FrameBuffer*>(handle.GetObjectPtr()));
  68 }
  69
  70 FrameBuffer& FrameBuffer::operator=(const FrameBuffer& handle) = default;
  71
  72 FrameBuffer::FrameBuffer(Internal::FrameBuffer* pointer)
  73 : BaseHandle(pointer)
  74 {
  75 }
  76
  77 FrameBuffer::FrameBuffer(FrameBuffer&& rhs) = default;
  78
  79 FrameBuffer& FrameBuffer::operator=(FrameBuffer&& rhs) = default;
  80
  81 void FrameBuffer::AttachColorTexture(Texture& texture)
  82 {
  83   AttachColorTexture(texture, 0u, 0u);
  84 }
  85
  86 void FrameBuffer::AttachColorTexture(Texture& texture, uint32_t mipmapLevel, uint32_t layer)
  87 {
  88   if(texture)
  89   {
  90     Internal::TexturePtr texturePtr(&GetImplementation(texture));
  91     GetImplementation(*this).AttachColorTexture(texturePtr, mipmapLevel, layer);
  92   }
  93 }
  94
  95 Texture FrameBuffer::GetColorTexture()
  96 {
  97   Internal::Texture* texturePtr = GetImplementation(*this).GetColorTexture(0);
  98   return Dali::Texture(texturePtr);
  99 }
 100
 101 } //namespace Dali