dali/internal/imaging/ubuntu-x11/native-image-source-impl-x.h

   1 #ifndef DALI_INTERNAL_NATIVE_IMAGE_SOURCE_H
   2 #define DALI_INTERNAL_NATIVE_IMAGE_SOURCE_H
   3
   4 /*
   5  * Copyright (c) 2021 Samsung Electronics Co., Ltd.
   6  *
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  * http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  *
  19  */
  20
  21 // EXTERNAL INCLUDES
  22 #include <dali/internal/system/linux/dali-ecore-x.h>
  23
  24 // INTERNAL INCLUDES
  25 #include <dali/internal/graphics/common/graphics-interface.h>
  26
  27 #include <dali/public-api/adaptor-framework/native-image-source.h>
  28
  29 #include <dali/internal/imaging/common/native-image-source-impl.h>
  30
  31 namespace Dali
  32 {
  33 namespace Internal
  34 {
  35 namespace Adaptor
  36 {
  37 class EglImageExtensions;
  38
  39 /**
  40  * Dali internal NativeImageSource.
  41  */
  42 class NativeImageSourceX : public Internal::Adaptor::NativeImageSource
  43 {
  44 public:
  45   /**
  46    * Create a new NativeImageSource internally.
  47    * Depending on hardware the width and height may have to be a power of two.
  48    * @param[in] width The width of the image.
  49    * @param[in] height The height of the image.
  50    * @param[in] depth color depth of the image.
  51    * @param[in] nativeImageSource contains either: pixmap of type X11 Pixmap , a Ecore_X_Pixmap or is empty
  52    * @return A smart-pointer to a newly allocated image.
  53    */
  54   static NativeImageSourceX* New(uint32_t                            width,
  55                                  uint32_t                            height,
  56                                  Dali::NativeImageSource::ColorDepth depth,
  57                                  Any                                 nativeImageSource);
  58   /**
  59    * @copydoc Dali::NativeImageSource::GetNativeImageSource()
  60    */
  61   Any GetNativeImageSource() const override;
  62
  63   /**
  64    * @copydoc Dali::NativeImageSource::GetPixels()
  65    */
  66   bool GetPixels(std::vector<unsigned char>& pixbuf, uint32_t& width, uint32_t& height, Pixel::Format& pixelFormat) const override;
  67
  68   /**
  69    * @copydoc Dali::NativeImageSource::SetSource( Any source )
  70    */
  71   void SetSource(Any source) override;
  72
  73   /**
  74    * @copydoc Dali::NativeImageSource::IsColorDepthSupported( ColorDepth colorDepth )
  75    */
  76   bool IsColorDepthSupported(Dali::NativeImageSource::ColorDepth colorDepth) override;
  77
  78   /**
  79    * destructor
  80    */
  81   ~NativeImageSourceX() override;
  82
  83   /**
  84    * @copydoc Dali::NativeImageSource::CreateResource()
  85    */
  86   bool CreateResource() override;
  87
  88   /**
  89    * @copydoc Dali::NativeImageSource::DestroyResource()
  90    */
  91   void DestroyResource() override;
  92
  93   /**
  94    * @copydoc Dali::NativeImageSource::TargetTexture()
  95    */
  96   uint32_t TargetTexture() override;
  97
  98   /**
  99    * @copydoc Dali::NativeImageSource::PrepareTexture()
 100    */
 101   void PrepareTexture() override;
 102
 103   /**
 104    * @copydoc Dali::NativeImageSource::GetWidth()
 105    */
 106   uint32_t GetWidth() const override
 107   {
 108     return mWidth;
 109   }
 110
 111   /**
 112    * @copydoc Dali::NativeImageSource::GetHeight()
 113    */
 114   uint32_t GetHeight() const override
 115   {
 116     return mHeight;
 117   }
 118
 119   /**
 120    * @copydoc Dali::NativeImageSource::RequiresBlending()
 121    */
 122   bool RequiresBlending() const override
 123   {
 124     return mBlendingRequired;
 125   }
 126
 127   /**
 128    * @copydoc Dali::NativeImageSource::GetTextureTarget()
 129    */
 130   int GetTextureTarget() const override;
 131
 132   /**
 133    * @copydoc Dali::NativeImageSource::GetCustomFragmentPrefix()
 134    */
 135   const char* GetCustomFragmentPrefix() const override;
 136
 137   /**
 138    * @copydoc Dali::NativeImageSource::ApplyNativeFragmentShader()
 139    */
 140   bool ApplyNativeFragmentShader(std::string& shader) override;
 141
 142   /**
 143    * @copydoc Dali::NativeImageSource::GetCustomSamplerTypename()
 144    */
 145   const char* GetCustomSamplerTypename() const override;
 146
 147   /**
 148    * @copydoc Dali::NativeImageSource::GetNativeImageHandle()
 149    */
 150   Any GetNativeImageHandle() const override;
 151
 152   /**
 153    * @copydoc Dali::NativeImageSource::SourceChanged()
 154    */
 155   bool SourceChanged() const override;
 156
 157   /**
 158    * @copydoc Dali::NativeImageInterface::GetExtension()
 159    */
 160   NativeImageInterface::Extension* GetNativeImageInterfaceExtension() override
 161   {
 162     return nullptr;
 163   }
 164
 165   /**
 166    * @copydoc Dali::Internal::Adaptor::NativeImageSource::AcquireBuffer()
 167    */
 168   uint8_t* AcquireBuffer(uint16_t& width, uint16_t& height, uint16_t& stride) override;
 169
 170   /**
 171    * @copydoc Dali::Internal::Adaptor::NativeImageSource::ReleaseBuffer()
 172    */
 173   bool ReleaseBuffer() override;
 174
 175 private:
 176   /**
 177    * Private constructor; @see NativeImageSource::New()
 178    * @param[in] width The width of the image.
 179    * @param[in] height The height of the image.
 180    * @param[in] colour depth of the image.
 181    * @param[in] nativeImageSource contains either: pixmap of type X11 Pixmap , a Ecore_X_Pixmap or is empty
 182    */
 183   NativeImageSourceX(uint32_t                            width,
 184                      uint32_t                            height,
 185                      Dali::NativeImageSource::ColorDepth depth,
 186                      Any                                 nativeImageSource);
 187
 188   /**
 189    * 2nd phase construction.
 190    */
 191   void Initialize();
 192
 193   /**
 194    * Uses X11 to get the default depth.
 195    * @param depth the PixelImage depth enum
 196    * @return default x11 pixel depth
 197    */
 198   int GetPixelDepth(Dali::NativeImageSource::ColorDepth depth) const;
 199
 200   /**
 201    * Gets the pixmap from the Any parameter
 202    * @param pixmap contains either: pixmap of type X11 Pixmap , a Ecore_X_Pixmap or is empty
 203    * @return pixmap x11 pixmap
 204    */
 205   Ecore_X_Pixmap GetPixmapFromAny(Any pixmap) const;
 206
 207   /**
 208    * Given an existing pixmap, the function uses X to find out
 209    * the width, heigth and depth of that pixmap.
 210    */
 211   void GetPixmapDetails();
 212
 213 private:
 214   uint32_t                            mWidth;              ///< image width
 215   uint32_t                            mHeight;             ///< image heights
 216   bool                                mOwnPixmap;          ///< Whether we created pixmap or not
 217   Ecore_X_Pixmap                      mPixmap;             ///< From Xlib
 218   bool                                mBlendingRequired;   ///< Whether blending is required
 219   Dali::NativeImageSource::ColorDepth mColorDepth;         ///< color depth of image
 220   void*                               mEglImageKHR;        ///< From EGL extension
 221   EglImageExtensions*                 mEglImageExtensions; ///< The EGL Image Extensions
 222 };
 223
 224 } // namespace Adaptor
 225
 226 } // namespace Internal
 227
 228 } // namespace Dali
 229
 230 #endif // DALI_INTERNAL_NATIVE_IMAGE_SOURCE_H