2 * Copyright (c) 2020 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/integration-api/adaptor-framework/render-surface-interface.h>
41 using Dali::Integration::PixelBuffer;
43 // Pieces needed to save compressed images (temporary location while plumbing):
48 * Free an allocated XImage on destruction.
52 XImageJanitor( XImage* const pXImage ) : mXImage( pXImage )
54 DALI_ASSERT_DEBUG(pXImage != 0 && "Null pointer to XImage.");
61 if( !XDestroyImage(mXImage) )
63 DALI_LOG_ERROR("XImage deallocation failure");
67 XImage* const mXImage;
69 XImageJanitor( const XImageJanitor& rhs );
70 XImageJanitor& operator = ( const XImageJanitor& rhs );
74 NativeImageSourceX* NativeImageSourceX::New( uint32_t width, uint32_t height, Dali::NativeImageSource::ColorDepth depth, Any nativeImageSource )
76 NativeImageSourceX* image = new NativeImageSourceX( width, height, depth, nativeImageSource );
77 DALI_ASSERT_DEBUG( image && "NativeImageSource allocation failed." );
79 // 2nd phase construction
80 if(image) //< Defensive in case we ever compile without exceptions.
88 NativeImageSourceX::NativeImageSourceX( uint32_t width, uint32_t height, Dali::NativeImageSource::ColorDepth depth, Any nativeImageSource )
93 mBlendingRequired( false ),
96 mEglImageExtensions( NULL )
98 DALI_ASSERT_ALWAYS( Adaptor::IsAvailable() );
100 GraphicsInterface* graphics = &( Adaptor::GetImplementation( Adaptor::Get() ).GetGraphicsInterface() );
101 auto eglGraphics = static_cast<EglGraphics *>(graphics);
103 mEglImageExtensions = eglGraphics->GetImageExtensions();
105 DALI_ASSERT_DEBUG( mEglImageExtensions );
108 mPixmap = GetPixmapFromAny(nativeImageSource);
111 void NativeImageSourceX::Initialize()
113 // if pixmap has been created outside of X11 Image we can return
116 // we don't own the pixmap
119 // find out the pixmap width / height and color depth
124 // get the pixel depth
125 int depth = GetPixelDepth(mColorDepth);
127 // set whether blending is required according to pixel format based on the depth
128 /* default pixel format is RGB888
129 If depth = 8, Pixel::A8;
130 If depth = 16, Pixel::RGB565;
131 If depth = 32, Pixel::RGBA8888 */
132 mBlendingRequired = ( depth == 32 || depth == 8 );
134 mPixmap = ecore_x_pixmap_new( 0, mWidth, mHeight, depth );
138 NativeImageSourceX::~NativeImageSourceX()
140 if (mOwnPixmap && mPixmap)
142 ecore_x_pixmap_free(mPixmap);
146 Any NativeImageSourceX::GetNativeImageSource() const
148 // return ecore x11 type
152 bool NativeImageSourceX::GetPixels(std::vector<unsigned char>& pixbuf, unsigned& width, unsigned& height, Pixel::Format& pixelFormat) const
154 DALI_ASSERT_DEBUG(sizeof(unsigned) == 4);
155 bool success = false;
159 // Open a display connection
160 Display* displayConnection = XOpenDisplay( 0 );
162 XImageJanitor xImageJanitor( XGetImage( displayConnection,
164 0, 0, // x,y of subregion to extract.
165 width, height, // of subregion to extract.
168 XImage* const pXImage = xImageJanitor.mXImage;
169 DALI_ASSERT_DEBUG(pXImage && "XImage (from pixmap) could not be retrieved from the server");
172 DALI_LOG_ERROR("Could not retrieve Ximage.\n");
176 switch(pXImage->depth)
178 // Note, depth is a logical value. On target the framebuffer is still 32bpp
179 // (see pXImage->bits_per_pixel) so we go through XGetPixel() and swizzle.
180 // Note, this could be the default, fallback case for all depths if *pXImage
181 // didn't have blank RGB masks (X bug), but we have to hardcode the masks and
185 pixelFormat = Pixel::RGB888;
186 pixbuf.resize(width*height*3);
187 unsigned char* bufPtr = &pixbuf[0];
189 for(unsigned y = height-1; y < height; --y)
191 for(unsigned x = 0; x < width; ++x, bufPtr+=3)
193 const unsigned pixel = XGetPixel(pXImage,x,y);
196 const unsigned blue = pixel & 0xFFU;
197 const unsigned green = (pixel >> 8) & 0xFFU;
198 const unsigned red = (pixel >> 16) & 0xFFU;
212 // Sweep through the image, doing a vertical flip, but handling each scanline as
213 // an inlined intrinsic/builtin memcpy (should be fast):
214 pixbuf.resize(width*height*4);
215 unsigned * bufPtr = reinterpret_cast<unsigned *>(&pixbuf[0]);
216 const unsigned xDataLineSkip = pXImage->bytes_per_line;
217 const size_t copy_count = static_cast< size_t >( width ) * 4;
218 pixelFormat = Pixel::BGRA8888;
220 for(unsigned y = height-1; y < height; --y, bufPtr += width)
222 const char * const in = pXImage->data + xDataLineSkip * y;
224 // Copy a whole scanline at a time:
225 DALI_ASSERT_DEBUG( size_t( bufPtr ) >= size_t( &pixbuf[0] ));
226 DALI_ASSERT_DEBUG( reinterpret_cast<size_t>( bufPtr ) + copy_count <= reinterpret_cast<size_t>( &pixbuf[pixbuf.size()] ) );
227 DALI_ASSERT_DEBUG( in >= pXImage->data );
228 DALI_ASSERT_DEBUG( in + copy_count <= pXImage->data + xDataLineSkip * height );
229 __builtin_memcpy( bufPtr, in, copy_count );
235 DALI_LOG_ERROR("XImage has null data pointer.\n");
239 // Make a case for 16 bit modes especially to remember that the only reason we don't support them is a bug in X:
242 DALI_ASSERT_DEBUG(pXImage->red_mask && pXImage->green_mask && pXImage->blue_mask && "No image masks mean 16 bit modes are not possible.");
243 ///! If the above assert doesn't fail in a debug build, the X bug may have been fixed, so revisit this function.
244 ///! No break, fall through to the general unsupported format warning below.
248 DALI_LOG_WARNING("Pixmap has unsupported bit-depth for getting pixels: %u\n", pXImage->depth);
254 DALI_LOG_ERROR("Failed to get pixels from NativeImageSource.\n");
260 // Close the display connection
261 XCloseDisplay( displayConnection );
266 void NativeImageSourceX::SetSource( Any source )
268 mPixmap = GetPixmapFromAny( source );
272 // we don't own the pixmap
275 // find out the pixmap width / height and color depth
280 bool NativeImageSourceX::IsColorDepthSupported( Dali::NativeImageSource::ColorDepth colorDepth )
285 bool NativeImageSourceX::CreateResource()
287 // if the image existed previously delete it.
288 if (mEglImageKHR != NULL)
293 // casting from an unsigned int to a void *, which should then be cast back
294 // to an unsigned int in the driver.
295 EGLClientBuffer eglBuffer = reinterpret_cast< EGLClientBuffer > (mPixmap);
297 mEglImageKHR = mEglImageExtensions->CreateImageKHR( eglBuffer );
299 return mEglImageKHR != NULL;
302 void NativeImageSourceX::DestroyResource()
304 mEglImageExtensions->DestroyImageKHR(mEglImageKHR);
309 uint32_t NativeImageSourceX::TargetTexture()
311 mEglImageExtensions->TargetTextureKHR(mEglImageKHR);
316 void NativeImageSourceX::PrepareTexture()
320 int NativeImageSourceX::GetPixelDepth(Dali::NativeImageSource::ColorDepth depth) const
324 case Dali::NativeImageSource::COLOR_DEPTH_DEFAULT:
326 // Get the default screen depth
327 return ecore_x_default_depth_get(ecore_x_display_get(), ecore_x_default_screen_get());
329 case Dali::NativeImageSource::COLOR_DEPTH_8:
333 case Dali::NativeImageSource::COLOR_DEPTH_16:
337 case Dali::NativeImageSource::COLOR_DEPTH_24:
341 case Dali::NativeImageSource::COLOR_DEPTH_32:
347 DALI_ASSERT_DEBUG(0 && "unknown color enum");
353 int NativeImageSourceX::GetTextureTarget() const
355 return GL_TEXTURE_2D;
358 const char* NativeImageSourceX::GetCustomFragmentPrefix() const
363 const char* NativeImageSourceX::GetCustomSamplerTypename() const
368 Any NativeImageSourceX::GetNativeImageHandle() const
373 bool NativeImageSourceX::SourceChanged() const
378 Ecore_X_Pixmap NativeImageSourceX::GetPixmapFromAny(Any pixmap) const
385 // see if it is of type x11 pixmap
386 if (pixmap.GetType() == typeid (Pixmap))
388 // get the x pixmap type
389 Pixmap xpixmap = AnyCast<Pixmap>(pixmap);
391 // cast it to a ecore pixmap type
392 return static_cast<Ecore_X_Pixmap>(xpixmap);
396 return AnyCast<Ecore_X_Pixmap>(pixmap);
400 void NativeImageSourceX::GetPixmapDetails()
404 // get the width, height and depth
405 ecore_x_pixmap_geometry_get( mPixmap, &x, &y, reinterpret_cast< int* >( &mWidth ), reinterpret_cast< int* >( &mHeight ) );
407 // set whether blending is required according to pixel format based on the depth
408 /* default pixel format is RGB888
409 If depth = 8, Pixel::A8;
410 If depth = 16, Pixel::RGB565;
411 If depth = 32, Pixel::RGBA8888 */
412 int depth = ecore_x_pixmap_depth_get(mPixmap);
413 mBlendingRequired = ( depth == 32 || depth == 8 );
416 uint8_t* NativeImageSourceX::AcquireBuffer( uint16_t& width, uint16_t& height, uint16_t& stride )
422 bool NativeImageSourceX::ReleaseBuffer()
427 } // namespace Adaptor
429 } // namespace internal