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

   1 /*
   2  * Copyright (c) 2021 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/internal/imaging/macos/native-image-source-impl-mac.h>
  20
  21 // EXTERNAL INCLUDES
  22 #include <dali/integration-api/debug.h>
  23
  24 // INTERNAL INCLUDES
  25 #include <dali/integration-api/adaptor-framework/render-surface-interface.h>
  26 #include <dali/internal/adaptor/common/adaptor-impl.h>
  27 #include <dali/internal/graphics/common/egl-image-extensions.h>
  28 #include <dali/internal/graphics/gles/egl-graphics.h>
  29
  30 namespace Dali::Internal::Adaptor
  31 {
  32 using Dali::Integration::PixelBuffer;
  33
  34 NativeImageSourceCocoa* NativeImageSourceCocoa::New(
  35   unsigned int                        width,
  36   unsigned int                        height,
  37   Dali::NativeImageSource::ColorDepth depth,
  38   Any                                 nativeImageSource)
  39 {
  40   return new NativeImageSourceCocoa(width, height, depth, nativeImageSource);
  41 }
  42
  43 NativeImageSourceCocoa::NativeImageSourceCocoa(
  44   unsigned int                        width,
  45   unsigned int                        height,
  46   Dali::NativeImageSource::ColorDepth depth,
  47   Any                                 nativeImageSource)
  48 : mImage(MakeRef<CGImageRef>(nullptr))
  49 {
  50   DALI_ASSERT_ALWAYS(Adaptor::IsAvailable());
  51   DALI_ASSERT_ALWAYS(nativeImageSource.Empty());
  52
  53   CFStringRef      colorSpaceName;
  54   CGImageAlphaInfo alphaInfo;
  55   std::size_t      bitsPerPixel;
  56
  57   switch(depth)
  58   {
  59     case Dali::NativeImageSource::COLOR_DEPTH_8:
  60       colorSpaceName = kCGColorSpaceGenericGray;
  61       alphaInfo      = kCGImageAlphaNone;
  62       bitsPerPixel   = 8;
  63       break;
  64     case Dali::NativeImageSource::COLOR_DEPTH_16:
  65       colorSpaceName = kCGColorSpaceSRGB;
  66       alphaInfo      = kCGImageAlphaNone;
  67       bitsPerPixel   = 16;
  68       break;
  69     case Dali::NativeImageSource::COLOR_DEPTH_24:
  70       colorSpaceName = kCGColorSpaceSRGB;
  71       alphaInfo      = kCGImageAlphaNone;
  72       bitsPerPixel   = 24;
  73       break;
  74     case Dali::NativeImageSource::COLOR_DEPTH_32:
  75     default:
  76       colorSpaceName = kCGColorSpaceSRGB;
  77       alphaInfo      = kCGImageAlphaLast;
  78       bitsPerPixel   = 32;
  79       break;
  80   }
  81
  82   // round to next 16 bytes boundary
  83   std::size_t bytesPerRow = width & ~0xf;
  84   bytesPerRow             = bytesPerRow ? bytesPerRow + 16 : width;
  85
  86   auto dataProvider = MakeRef(CGDataProviderCreateWithData(nullptr, nullptr, 0, nullptr));
  87   auto colorSpace   = MakeRef(CGColorSpaceCreateWithName(colorSpaceName));
  88   mImage            = MakeRef(CGImageCreate(
  89     width,
  90     height,
  91     8,
  92     bitsPerPixel,
  93     bytesPerRow,
  94     colorSpace.get(),
  95     alphaInfo,
  96     dataProvider.get(),
  97     nullptr,
  98     true,
  99     kCGRenderingIntentDefault));
 100
 101   if(mImage)
 102   {
 103     colorSpace.release();
 104     dataProvider.release();
 105   }
 106
 107   DALI_ASSERT_ALWAYS(mImage.get());
 108 }
 109
 110 NativeImageSourceCocoa::~NativeImageSourceCocoa()
 111 {
 112 }
 113
 114 Any NativeImageSourceCocoa::GetNativeImageSource() const
 115 {
 116   return Any();
 117 }
 118
 119 bool NativeImageSourceCocoa::GetPixels(
 120   std::vector<uint8_t>& pixbuf,
 121   unsigned&             width,
 122   unsigned&             height,
 123   Pixel::Format&        pixelFormat) const
 124 {
 125   width  = CGImageGetWidth(mImage.get());
 126   height = CGImageGetHeight(mImage.get());
 127   return true;
 128 }
 129
 130 void NativeImageSourceCocoa::SetSource(Any source)
 131 {
 132 }
 133
 134 bool NativeImageSourceCocoa::IsColorDepthSupported(Dali::NativeImageSource::ColorDepth colorDepth)
 135 {
 136   return true;
 137 }
 138
 139 bool NativeImageSourceCocoa::CreateResource()
 140 {
 141   return false;
 142 }
 143
 144 void NativeImageSourceCocoa::DestroyResource()
 145 {
 146 }
 147
 148 unsigned int NativeImageSourceCocoa::TargetTexture()
 149 {
 150   return 0;
 151 }
 152
 153 void NativeImageSourceCocoa::PrepareTexture()
 154 {
 155 }
 156
 157 bool NativeImageSourceCocoa::ApplyNativeFragmentShader(std::string& shader)
 158 {
 159   return false;
 160 }
 161
 162 const char* NativeImageSourceCocoa::GetCustomSamplerTypename() const
 163 {
 164   return nullptr;
 165 }
 166
 167 int NativeImageSourceCocoa::GetTextureTarget() const
 168 {
 169   return GL_TEXTURE_2D;
 170 }
 171
 172 Any NativeImageSourceCocoa::GetNativeImageHandle() const
 173 {
 174   return Any(mImage.get());
 175 }
 176
 177 unsigned int NativeImageSourceCocoa::GetWidth() const
 178 {
 179   return CGImageGetWidth(mImage.get());
 180 }
 181
 182 unsigned int NativeImageSourceCocoa::GetHeight() const
 183 {
 184   return CGImageGetHeight(mImage.get());
 185 }
 186
 187 bool NativeImageSourceCocoa::RequiresBlending() const
 188 {
 189   const auto alphaInfo = CGImageGetAlphaInfo(mImage.get());
 190   return alphaInfo != kCGImageAlphaNone && alphaInfo != kCGImageAlphaNoneSkipFirst && alphaInfo != kCGImageAlphaNoneSkipLast;
 191 }
 192
 193 bool NativeImageSourceCocoa::SourceChanged() const
 194 {
 195   return false;
 196 }
 197
 198 uint8_t* NativeImageSourceCocoa::AcquireBuffer(uint16_t& width, uint16_t& height, uint16_t& stride)
 199 {
 200   return nullptr;
 201 }
 202
 203 bool NativeImageSourceCocoa::ReleaseBuffer()
 204 {
 205   return false;
 206 }
 207
 208 } // namespace Dali::Internal::Adaptor