2 * Copyright (c) 2019 Samsung Electronics Co., Ltd.
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
19 #include <dali/internal/imaging/ubuntu-x11/native-image-source-impl-x.h>
22 #include <dali/internal/system/linux/dali-ecore-x.h>
23 #include <X11/Xutil.h>
25 #include <dali/integration-api/debug.h>
28 #include <dali/internal/graphics/common/egl-image-extensions.h>
29 #include <dali/internal/graphics/gles/egl-graphics.h>
30 #include <dali/internal/adaptor/common/adaptor-impl.h>
31 #include <dali/devel-api/adaptor-framework/bitmap-saver.h>
32 #include <dali/integration-api/render-surface.h>
43 using Dali::Integration::PixelBuffer;
45 // Pieces needed to save compressed images (temporary location while plumbing):
50 * Free an allocated XImage on destruction.
54 XImageJanitor( XImage* const pXImage ) : mXImage( pXImage )
56 DALI_ASSERT_DEBUG(pXImage != 0 && "Null pointer to XImage.");
63 if( !XDestroyImage(mXImage) )
65 DALI_LOG_ERROR("XImage deallocation failure");
69 XImage* const mXImage;
71 XImageJanitor( const XImageJanitor& rhs );
72 XImageJanitor& operator = ( const XImageJanitor& rhs );
76 NativeImageSourceX* NativeImageSourceX::New( uint32_t width, uint32_t height, Dali::NativeImageSource::ColorDepth depth, Any nativeImageSource )
78 NativeImageSourceX* image = new NativeImageSourceX( width, height, depth, nativeImageSource );
79 DALI_ASSERT_DEBUG( image && "NativeImageSource allocation failed." );
81 // 2nd phase construction
82 if(image) //< Defensive in case we ever compile without exceptions.
90 NativeImageSourceX::NativeImageSourceX( uint32_t width, uint32_t height, Dali::NativeImageSource::ColorDepth depth, Any nativeImageSource )
95 mBlendingRequired( false ),
98 mEglImageExtensions( NULL )
100 DALI_ASSERT_ALWAYS( Adaptor::IsAvailable() );
102 GraphicsInterface* graphics = &( Adaptor::GetImplementation( Adaptor::Get() ).GetGraphicsInterface() );
103 auto eglGraphics = static_cast<EglGraphics *>(graphics);
105 mEglImageExtensions = eglGraphics->GetImageExtensions();
107 DALI_ASSERT_DEBUG( mEglImageExtensions );
110 mPixmap = GetPixmapFromAny(nativeImageSource);
113 void NativeImageSourceX::Initialize()
115 // if pixmap has been created outside of X11 Image we can return
118 // we don't own the pixmap
121 // find out the pixmap width / height and color depth
126 // get the pixel depth
127 int depth = GetPixelDepth(mColorDepth);
129 // set whether blending is required according to pixel format based on the depth
130 /* default pixel format is RGB888
131 If depth = 8, Pixel::A8;
132 If depth = 16, Pixel::RGB565;
133 If depth = 32, Pixel::RGBA8888 */
134 mBlendingRequired = ( depth == 32 || depth == 8 );
136 mPixmap = ecore_x_pixmap_new( 0, mWidth, mHeight, depth );
140 NativeImageSourceX::~NativeImageSourceX()
142 if (mOwnPixmap && mPixmap)
144 ecore_x_pixmap_free(mPixmap);
148 Any NativeImageSourceX::GetNativeImageSource() const
150 // return ecore x11 type
154 bool NativeImageSourceX::GetPixels(std::vector<unsigned char>& pixbuf, unsigned& width, unsigned& height, Pixel::Format& pixelFormat) const
156 DALI_ASSERT_DEBUG(sizeof(unsigned) == 4);
157 bool success = false;
161 // Open a display connection
162 Display* displayConnection = XOpenDisplay( 0 );
164 XImageJanitor xImageJanitor( XGetImage( displayConnection,
166 0, 0, // x,y of subregion to extract.
167 width, height, // of subregion to extract.
170 XImage* const pXImage = xImageJanitor.mXImage;
171 DALI_ASSERT_DEBUG(pXImage && "XImage (from pixmap) could not be retrieved from the server");
174 DALI_LOG_ERROR("Could not retrieve Ximage.\n");
178 switch(pXImage->depth)
180 // Note, depth is a logical value. On target the framebuffer is still 32bpp
181 // (see pXImage->bits_per_pixel) so we go through XGetPixel() and swizzle.
182 // Note, this could be the default, fallback case for all depths if *pXImage
183 // didn't have blank RGB masks (X bug), but we have to hardcode the masks and
187 pixelFormat = Pixel::RGB888;
188 pixbuf.resize(width*height*3);
189 unsigned char* bufPtr = &pixbuf[0];
191 for(unsigned y = height-1; y < height; --y)
193 for(unsigned x = 0; x < width; ++x, bufPtr+=3)
195 const unsigned pixel = XGetPixel(pXImage,x,y);
198 const unsigned blue = pixel & 0xFFU;
199 const unsigned green = (pixel >> 8) & 0xFFU;
200 const unsigned red = (pixel >> 16) & 0xFFU;
214 // Sweep through the image, doing a vertical flip, but handling each scanline as
215 // an inlined intrinsic/builtin memcpy (should be fast):
216 pixbuf.resize(width*height*4);
217 unsigned * bufPtr = reinterpret_cast<unsigned *>(&pixbuf[0]);
218 const unsigned xDataLineSkip = pXImage->bytes_per_line;
219 const size_t copy_count = static_cast< size_t >( width ) * 4;
220 pixelFormat = Pixel::BGRA8888;
222 for(unsigned y = height-1; y < height; --y, bufPtr += width)
224 const char * const in = pXImage->data + xDataLineSkip * y;
226 // Copy a whole scanline at a time:
227 DALI_ASSERT_DEBUG( size_t( bufPtr ) >= size_t( &pixbuf[0] ));
228 DALI_ASSERT_DEBUG( reinterpret_cast<size_t>( bufPtr ) + copy_count <= reinterpret_cast<size_t>( &pixbuf[pixbuf.size()] ) );
229 DALI_ASSERT_DEBUG( in >= pXImage->data );
230 DALI_ASSERT_DEBUG( in + copy_count <= pXImage->data + xDataLineSkip * height );
231 __builtin_memcpy( bufPtr, in, copy_count );
237 DALI_LOG_ERROR("XImage has null data pointer.\n");
241 // Make a case for 16 bit modes especially to remember that the only reason we don't support them is a bug in X:
244 DALI_ASSERT_DEBUG(pXImage->red_mask && pXImage->green_mask && pXImage->blue_mask && "No image masks mean 16 bit modes are not possible.");
245 ///! If the above assert doesn't fail in a debug build, the X bug may have been fixed, so revisit this function.
246 ///! No break, fall through to the general unsupported format warning below.
250 DALI_LOG_WARNING("Pixmap has unsupported bit-depth for getting pixels: %u\n", pXImage->depth);
256 DALI_LOG_ERROR("Failed to get pixels from NativeImageSource.\n");
262 // Close the display connection
263 XCloseDisplay( displayConnection );
268 bool NativeImageSourceX::EncodeToFile(const std::string& filename) const
270 std::vector< unsigned char > pixbuf;
271 unsigned int width(0), height(0);
272 Pixel::Format pixelFormat;
274 if(GetPixels(pixbuf, width, height, pixelFormat))
276 return Dali::EncodeToFile(&pixbuf[0], filename, pixelFormat, width, height);
281 void NativeImageSourceX::SetSource( Any source )
283 mPixmap = GetPixmapFromAny( source );
287 // we don't own the pixmap
290 // find out the pixmap width / height and color depth
295 bool NativeImageSourceX::IsColorDepthSupported( Dali::NativeImageSource::ColorDepth colorDepth )
300 bool NativeImageSourceX::GlExtensionCreate()
302 // if the image existed previously delete it.
303 if (mEglImageKHR != NULL)
305 GlExtensionDestroy();
308 // casting from an unsigned int to a void *, which should then be cast back
309 // to an unsigned int in the driver.
310 EGLClientBuffer eglBuffer = reinterpret_cast< EGLClientBuffer > (mPixmap);
312 mEglImageKHR = mEglImageExtensions->CreateImageKHR( eglBuffer );
314 return mEglImageKHR != NULL;
317 void NativeImageSourceX::GlExtensionDestroy()
319 mEglImageExtensions->DestroyImageKHR(mEglImageKHR);
324 uint32_t NativeImageSourceX::TargetTexture()
326 mEglImageExtensions->TargetTextureKHR(mEglImageKHR);
331 void NativeImageSourceX::PrepareTexture()
335 int NativeImageSourceX::GetPixelDepth(Dali::NativeImageSource::ColorDepth depth) const
339 case Dali::NativeImageSource::COLOR_DEPTH_DEFAULT:
341 // Get the default screen depth
342 return ecore_x_default_depth_get(ecore_x_display_get(), ecore_x_default_screen_get());
344 case Dali::NativeImageSource::COLOR_DEPTH_8:
348 case Dali::NativeImageSource::COLOR_DEPTH_16:
352 case Dali::NativeImageSource::COLOR_DEPTH_24:
356 case Dali::NativeImageSource::COLOR_DEPTH_32:
362 DALI_ASSERT_DEBUG(0 && "unknown color enum");
368 Ecore_X_Pixmap NativeImageSourceX::GetPixmapFromAny(Any pixmap) const
375 // see if it is of type x11 pixmap
376 if (pixmap.GetType() == typeid (Pixmap))
378 // get the x pixmap type
379 Pixmap xpixmap = AnyCast<Pixmap>(pixmap);
381 // cast it to a ecore pixmap type
382 return static_cast<Ecore_X_Pixmap>(xpixmap);
386 return AnyCast<Ecore_X_Pixmap>(pixmap);
390 void NativeImageSourceX::GetPixmapDetails()
394 // get the width, height and depth
395 ecore_x_pixmap_geometry_get( mPixmap, &x, &y, reinterpret_cast< int* >( &mWidth ), reinterpret_cast< int* >( &mHeight ) );
397 // set whether blending is required according to pixel format based on the depth
398 /* default pixel format is RGB888
399 If depth = 8, Pixel::A8;
400 If depth = 16, Pixel::RGB565;
401 If depth = 32, Pixel::RGBA8888 */
402 int depth = ecore_x_pixmap_depth_get(mPixmap);
403 mBlendingRequired = ( depth == 32 || depth == 8 );
406 } // namespace Adaptor
408 } // namespace internal