dali/internal/imaging/macos/native-image-source-impl-mac.h

   1 #pragma once
   2
   3 /*
   4  * Copyright (c) 2021 Samsung Electronics Co., Ltd.
   5  *
   6  * Licensed under the Apache License, Version 2.0 (the "License");
   7  * you may not use this file except in compliance with the License.
   8  * You may obtain a copy of the License at
   9  *
  10  * http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software
  13  * distributed under the License is distributed on an "AS IS" BASIS,
  14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  * See the License for the specific language governing permissions and
  16  * limitations under the License.
  17  *
  18  */
  19
  20 // INTERNAL INCLUDES
  21 #include <dali/public-api/adaptor-framework/native-image-source.h>
  22
  23 #include <CoreGraphics/CoreGraphics.h>
  24 #include <dali/internal/imaging/common/native-image-source-impl.h>
  25 #include <extern-definitions.h>
  26
  27 namespace Dali::Internal::Adaptor
  28 {
  29 class EglImageExtensions;
  30
  31 /**
  32  * Dali internal NativeImageSource.
  33  */
  34 class NativeImageSourceCocoa : public Internal::Adaptor::NativeImageSource
  35 {
  36 public:
  37   /**
  38    * Create a new NativeImageSource internally.
  39    * Depending on hardware the width and height may have to be a power of two.
  40    * @param[in] width The width of the image.
  41    * @param[in] height The height of the image.
  42    * @param[in] depth color depth of the image.
  43    * @param[in] nativeImageSource contains either: pixmap of type Win32 Pixmap , a WinPixmap or is empty
  44    * @return A smart-pointer to a newly allocated image.
  45    */
  46   static NativeImageSourceCocoa* New(
  47     unsigned int                        width,
  48     unsigned int                        height,
  49     Dali::NativeImageSource::ColorDepth depth,
  50     Any                                 nativeImageSource);
  51
  52   /**
  53    * @copydoc Dali::NativeImageSource::GetNativeImageSource()
  54    */
  55   Any GetNativeImageSource() const override;
  56
  57   /**
  58    * @copydoc Dali::NativeImageSource::GetPixels()
  59    */
  60   bool GetPixels(
  61     std::vector<unsigned char>& pixbuf,
  62     unsigned int&               width,
  63     unsigned int&               height,
  64     Pixel::Format&              pixelFormat) const override;
  65
  66   /**
  67    * @copydoc Dali::NativeImageSource::SetSource( Any source )
  68    */
  69   void SetSource(Any source) override;
  70
  71   /**
  72    * @copydoc Dali::NativeImageSource::IsColorDepthSupported( ColorDepth colorDepth )
  73    */
  74   bool IsColorDepthSupported(Dali::NativeImageSource::ColorDepth colorDepth) override;
  75
  76   /**
  77    * destructor
  78    */
  79   ~NativeImageSourceCocoa() override;
  80
  81   /**
  82    * @copydoc Dali::NativeImageSource::CreateResource()
  83    */
  84   bool CreateResource() override;
  85
  86   /**
  87    * @copydoc Dali::NativeImageSource::DestroyResource()
  88    */
  89   void DestroyResource() override;
  90
  91   /**
  92    * @copydoc Dali::NativeImageSource::TargetTexture()
  93    */
  94   unsigned int TargetTexture() override;
  95
  96   /**
  97    * @copydoc Dali::NativeImageSource::PrepareTexture()
  98    */
  99   void PrepareTexture() override;
 100
 101   /**
 102    * @copydoc Dali::NativeImageSource::GetWidth()
 103    */
 104   unsigned int GetWidth() const override;
 105
 106   /**
 107    * @copydoc Dali::NativeImageSource::GetHeight()
 108    */
 109   unsigned int GetHeight() const override;
 110
 111   /**
 112    * @copydoc Dali::NativeImageSource::RequiresBlending()
 113    */
 114   bool RequiresBlending() const override;
 115
 116   /**
 117    * @copydoc Dali::NativeImageInterface::ApplyNativeFragmentShader()
 118    */
 119   bool ApplyNativeFragmentShader(std::string& shader) override;
 120
 121   /**
 122    * @copydoc Dali::NativeImageInterface::GetCustomSamplerTypename()
 123    */
 124   const char* GetCustomSamplerTypename() const override;
 125
 126   /**
 127    * @copydoc Dali::NativeImageInterface::GetTextureTarget()
 128    */
 129   int GetTextureTarget() const override;
 130
 131   /**
 132    * @copydoc Dali::NativeImageInterface::GetNativeImageHandle()
 133    */
 134   Any GetNativeImageHandle() const override;
 135
 136   /**
 137    * @copydoc Dali::NativeImageInterface::SourceChanged()
 138    */
 139   bool SourceChanged() const override;
 140
 141   /**
 142    * @copydoc Dali::NativeImageInterface::GetExtension()
 143    */
 144   NativeImageInterface::Extension* GetNativeImageInterfaceExtension() override
 145   {
 146     return nullptr;
 147   }
 148
 149   /**
 150    * @copydoc Dali::Internal::Adaptor::NativeImageSource::AcquireBuffer()
 151    */
 152   uint8_t* AcquireBuffer(uint16_t& width, uint16_t& height, uint16_t& stride) override;
 153
 154   /**
 155    * @copydoc Dali::Internal::Adaptor::NativeImageSource::ReleaseBuffer()
 156    */
 157   bool ReleaseBuffer() override;
 158
 159   /**
 160    * @copydoc Dali::NativeImageSource::SetResourceDestructionCallback()
 161    */
 162   void SetResourceDestructionCallback(EventThreadCallback* callback) override;
 163
 164 private:
 165   /**
 166    * Private constructor; @see NativeImageSource::New()
 167    * @param[in] width The width of the image.
 168    * @param[in] height The height of the image.
 169    * @param[in] colour depth of the image.
 170    * @param[in] nativeImageSource contains either: pixmap of type Win32 Pixmap , a WinPixmap or is empty
 171    */
 172   NativeImageSourceCocoa(
 173     unsigned int                        width,
 174     unsigned int                        height,
 175     Dali::NativeImageSource::ColorDepth depth,
 176     Any                                 nativeImageSource);
 177
 178 private:
 179   CFRef<CGImageRef> mImage;
 180   std::unique_ptr<EventThreadCallback> mResourceDestructionCallback;  ///< The Resource Destruction Callback
 181 };
 182
 183 } // namespace Dali::Internal::Adaptor