Merge "VCPKG - CMakeLists.txt updated to build for vcpkg." into devel/master
[platform/core/uifw/dali-core.git] / dali / public-api / rendering / frame-buffer.cpp
1 /*
2  * Copyright (c) 2019 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
32 namespace
33 {
34 /// Bool operator for FrameBuffer::Attachment::Mask.
35 /// in cpp as only used in this file
36 bool operator&( FrameBuffer::Attachment::Mask lhs, FrameBuffer::Attachment::Mask rhs )
37 {
38   using UnderlyingType = typename std::underlying_type< FrameBuffer::Attachment::Mask >::type;
39   return static_cast<bool>( static_cast<UnderlyingType>( lhs ) & static_cast<UnderlyingType>( rhs ) );
40 }
41
42 } // unnamed namespace
43
44 FrameBuffer FrameBuffer::New( uint32_t width, uint32_t height )
45 {
46   return New( width, height, FrameBuffer::Attachment::COLOR );
47 }
48
49 FrameBuffer FrameBuffer::New( uint32_t width, uint32_t height, Attachment::Mask attachments )
50 {
51   Internal::FrameBufferPtr frameBuffer = Internal::FrameBuffer::New( width, height, attachments );
52   if( attachments & FrameBuffer::Attachment::COLOR )
53   {
54     Internal::TexturePtr texture = Internal::Texture::New( Dali::TextureType::TEXTURE_2D, Pixel::RGB888, width, height );
55     frameBuffer->AttachColorTexture( texture, 0u, 0u );
56   }
57   return FrameBuffer( frameBuffer.Get() );
58 }
59
60 FrameBuffer FrameBuffer::New( uint32_t width, uint32_t height, uint32_t attachments )
61 {
62   DALI_LOG_WARNING_NOFN("DEPRECATION WARNING: FrameBuffer::New(uint32_t,uint32_t,uint32_t) is deprecated and will be removed from next release. use New(uint32_t, uint32_t,Attachment::Mask) instead.\n" );
63   // have to static cast, which according to standard since C++11 is undefined behaviour, hence this variant is deprecated
64   Internal::FrameBufferPtr frameBuffer = Internal::FrameBuffer::New( width, height, static_cast<Attachment::Mask>( attachments ) );
65   return FrameBuffer( frameBuffer.Get() );
66 }
67
68 FrameBuffer::FrameBuffer()
69 {
70 }
71
72 FrameBuffer::~FrameBuffer()
73 {
74 }
75
76 FrameBuffer::FrameBuffer( const FrameBuffer& handle )
77 : BaseHandle( handle )
78 {
79 }
80
81 FrameBuffer FrameBuffer::DownCast( BaseHandle handle )
82 {
83   return FrameBuffer( dynamic_cast<Dali::Internal::FrameBuffer*>(handle.GetObjectPtr()));
84 }
85
86 FrameBuffer& FrameBuffer::operator=( const FrameBuffer& handle )
87 {
88   BaseHandle::operator=( handle );
89   return *this;
90 }
91
92 FrameBuffer::FrameBuffer( Internal::FrameBuffer* pointer )
93 : BaseHandle( pointer )
94 {
95 }
96
97 void FrameBuffer::AttachColorTexture( Texture& texture )
98 {
99   AttachColorTexture( texture, 0u, 0u );
100 }
101
102 void FrameBuffer::AttachColorTexture( Texture& texture, uint32_t mipmapLevel, uint32_t layer )
103 {
104   if( texture )
105   {
106     Internal::TexturePtr texturePtr( &GetImplementation( texture ) );
107     GetImplementation(*this).AttachColorTexture( texturePtr, mipmapLevel, layer );
108   }
109 }
110
111 Texture FrameBuffer::GetColorTexture()
112 {
113   Internal::Texture* texturePtr = GetImplementation(*this).GetColorTexture();
114   return Dali::Texture( texturePtr );
115 }
116
117 } //namespace Dali