2 * Copyright (c) 2014 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/render/gl-resources/bitmap-texture.h>
26 #include <dali/public-api/math/rect.h>
27 #include <dali/public-api/math/math-utils.h>
28 #include <dali/integration-api/debug.h>
29 #include <dali/internal/render/common/vertex.h>
30 #include <dali/internal/render/common/performance-monitor.h>
31 #include <dali/internal/render/gl-resources/context.h>
39 BitmapTexture::BitmapTexture(Integration::Bitmap* const bitmap, const Integration::Bitmap::PackedPixelsProfile * const bitmapPackedPixelsProfile, Context& context)
41 bitmapPackedPixelsProfile->GetBufferWidth(),
42 bitmapPackedPixelsProfile->GetBufferHeight(),
43 bitmap->GetImageWidth(),
44 bitmap->GetImageHeight(),
45 bitmap->GetPixelFormat()),
49 DALI_LOG_TRACE_METHOD(Debug::Filter::gImage);
50 DALI_LOG_SET_OBJECT_STRING(this, DALI_LOG_GET_OBJECT_STRING(bitmap));
53 BitmapTexture::BitmapTexture(
56 Pixel::Format pixelFormat,
64 mClearPixels(clearPixels)
66 DALI_LOG_TRACE_METHOD(Debug::Filter::gImage);
69 BitmapTexture::~BitmapTexture()
71 DALI_LOG_TRACE_METHOD(Debug::Filter::gImage);
72 // GlCleanup() should already have been called by TextureCache ensuring the resource is destroyed
73 // on the render thread. (And avoiding a potentially problematic virtual call in the destructor)
76 void BitmapTexture::UploadBitmapArray( const BitmapUploadArray& bitmapArray )
83 mContext.ActiveTexture(GL_TEXTURE7); // bind in unused unit so rebind works the first time
84 mContext.Bind2dTexture(mId);
85 mContext.PixelStorei(GL_UNPACK_ALIGNMENT, 1); // We always use tightly packed data
87 GLenum pixelFormat = GL_RGBA;
88 GLenum pixelDataType = GL_UNSIGNED_BYTE;
90 Integration::ConvertToGlFormat(mPixelFormat, pixelDataType, pixelFormat);
92 // go through each bitmap uploading it
94 for( BitmapUploadArray::const_iterator iter = bitmapArray.begin(), endIter = bitmapArray.end(); iter != endIter ; ++iter)
96 const BitmapUpload& bitmapItem((*iter));
98 DALI_ASSERT_ALWAYS(bitmapItem.mPixelData);
100 const unsigned char* pixels = bitmapItem.mPixelData;
102 DALI_ASSERT_DEBUG( (pixels!=NULL) && "bitmap has no data \n");
104 unsigned int bitmapWidth(bitmapItem.mWidth);
105 unsigned int bitmapHeight(bitmapItem.mHeight);
107 DALI_LOG_INFO(Debug::Filter::gImage, Debug::General, "upload bitmap to texture :%d y:%d w:%d h:%d\n",
113 mContext.TexSubImage2D(GL_TEXTURE_2D,
114 0, /* mip map level */
115 bitmapItem.mXpos, /* X pos */
116 bitmapItem.mYpos, /* Y pos */
117 bitmapWidth, /* width */
118 bitmapHeight, /* height */
119 pixelFormat, /* our bitmap format (should match internal format) */
120 pixelDataType, /* pixel data type */
121 pixels); /* texture data */
123 if( BitmapUpload::DISCARD_PIXEL_DATA == bitmapItem.mDiscard)
125 delete [] bitmapItem.mPixelData;
130 bool BitmapTexture::HasAlphaChannel() const
132 return Pixel::HasAlpha(mPixelFormat);
135 bool BitmapTexture::IsFullyOpaque() const
139 return mBitmap->IsFullyOpaque();
143 return ! HasAlphaChannel(); // Todo: amalgamate updated bitmap's IsFullyOpaque()
147 // Bitmap buffer has been changed. Upload changes to GPU.
148 void BitmapTexture::AreaUpdated( const RectArea& updateArea, const unsigned char* pixels )
150 DALI_LOG_TRACE_METHOD(Debug::Filter::gImage);
151 DALI_LOG_INFO(Debug::Filter::gGLResource, Debug::Verbose, "BitmapTexture::AreaUpdated()\n");
153 GLenum pixelFormat = GL_RGBA;
154 GLenum pixelDataType = GL_UNSIGNED_BYTE;
155 Integration::ConvertToGlFormat(mPixelFormat, pixelDataType, pixelFormat);
157 mContext.ActiveTexture(GL_TEXTURE7); // bind in unused unit so rebind works the first time
159 mContext.Bind2dTexture(mId);
161 if( ! updateArea.IsEmpty() )
163 mContext.PixelStorei( GL_UNPACK_ALIGNMENT, 1 ); // We always use tightly packed data
164 DALI_LOG_INFO( Debug::Filter::gImage, Debug::General, "Update x:%d y:%d w:%d h:%d\n",
165 updateArea.x, updateArea.y, updateArea.width ,updateArea.height );
167 // TODO: obtain pitch of source image, obtain pixel depth of source image.
168 const unsigned int pitchPixels = mImageWidth;
169 const unsigned int pixelDepth = sizeof(unsigned int);
171 // If the width of the source update area is the same as the pitch, then can
172 // copy the contents in a single contiguous TexSubImage call.
173 if(updateArea.x == 0 && updateArea.width == pitchPixels)
175 pixels += updateArea.y * pitchPixels * pixelDepth;
176 mContext.TexSubImage2D( GL_TEXTURE_2D,0, updateArea.x, updateArea.y,
177 updateArea.width, updateArea.height,
178 pixelFormat, pixelDataType, pixels );
182 // Otherwise the source buffer needs to be copied line at a time, as OpenGL ES
183 // does not support source strides. (no GL_UNPACK_ROW_LENGTH supported)
184 unsigned int yBottom = updateArea.y + updateArea.height;
185 pixels += (updateArea.y * pitchPixels + updateArea.x) * pixelDepth;
187 for(unsigned int y = updateArea.y; y < yBottom; y++)
189 mContext.TexSubImage2D( GL_TEXTURE_2D,0, updateArea.x, y,
191 pixelFormat, pixelDataType, pixels );
192 pixels += pitchPixels * pixelDepth;
196 INCREASE_BY( PerformanceMonitor::TEXTURE_DATA_UPLOADED,
197 updateArea.Area()* GetBytesPerPixel( mPixelFormat ));
202 void BitmapTexture::AssignBitmap( bool generateTexture, const unsigned char* pixels )
204 DALI_LOG_TRACE_METHOD(Debug::Filter::gImage);
205 DALI_LOG_INFO(Debug::Filter::gGLResource, Debug::Verbose, "BitmapTexture::AssignBitmap()\n");
207 GLenum pixelFormat = GL_RGBA;
208 GLenum pixelDataType = GL_UNSIGNED_BYTE;
210 if( generateTexture )
212 mContext.GenTextures(1, &mId);
214 DALI_ASSERT_DEBUG( mId != 0 );
216 mContext.ActiveTexture(GL_TEXTURE7); // bind in unused unit so rebind works the first time
217 mContext.Bind2dTexture(mId);
218 Integration::ConvertToGlFormat(mPixelFormat, pixelDataType, pixelFormat);
220 mContext.PixelStorei(GL_UNPACK_ALIGNMENT, 1); // We always use tightly packed data
221 mContext.TexImage2D(GL_TEXTURE_2D, 0, pixelFormat, mWidth, mHeight, 0, pixelFormat, pixelDataType, pixels);
222 mContext.TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
223 mContext.TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
225 INCREASE_BY( PerformanceMonitor::TEXTURE_DATA_UPLOADED, GetBytesPerPixel(mPixelFormat) * mWidth * mHeight );
228 void BitmapTexture::Update( Integration::Bitmap* bitmap )
230 DALI_LOG_INFO( Debug::Filter::gGLResource, Debug::General, "BitmapTexture::Update(bitmap:%p )\n", bitmap );
231 DALI_ASSERT_DEBUG( bitmap != 0 );
234 DALI_LOG_ERROR( "Passed a null bitmap to update this bitmap texture." );
238 // Only Packed-pixel bitmaps are ever associated with BitmapTextures, so we should never be passed any other kind:
239 const Integration::Bitmap::PackedPixelsProfile * const bitmapPackedPixels = bitmap->GetPackedPixelsProfile();
240 DALI_ASSERT_DEBUG(bitmapPackedPixels);
241 if( !bitmapPackedPixels )
243 ///! This should never happen.
244 DALI_LOG_ERROR("Passed an incompatible bitmap type to update this bitmap texture.");
249 const unsigned char* pixels = mBitmap->GetBuffer();
251 DALI_ASSERT_DEBUG( pixels != NULL );
253 if ( NULL == pixels )
255 DALI_LOG_ERROR("bitmap has no data\n");
256 GlCleanup(); // Note, We suicide here in the case of bad input.
260 if( mImageWidth == mBitmap->GetImageWidth() &&
261 mImageHeight == mBitmap->GetImageHeight() &&
262 mWidth == bitmapPackedPixels->GetBufferWidth() &&
263 mHeight == bitmapPackedPixels->GetBufferHeight() &&
264 mPixelFormat == mBitmap->GetPixelFormat() ) // and size hasn't changed
266 if ( mId ) // If the texture is already bound
268 RectArea area(0, 0, mImageWidth, mImageHeight); // just update whole texture
269 AreaUpdated( area, pixels );
270 mBitmap->DiscardBuffer();
274 { // Otherwise, reload the pixel data
275 mImageWidth = mBitmap->GetImageWidth();
276 mImageHeight = mBitmap->GetImageHeight();
277 mWidth = bitmapPackedPixels->GetBufferWidth();
278 mHeight = bitmapPackedPixels->GetBufferHeight();
279 mPixelFormat = mBitmap->GetPixelFormat();
281 if ( mId ) // If the texture is already bound
283 AssignBitmap( false, pixels );
284 mBitmap->DiscardBuffer();
290 void BitmapTexture::UpdateArea( const RectArea& updateArea )
292 DALI_LOG_INFO(Debug::Filter::gGLResource, Debug::General, "BitmapTexture::UpdateArea()\n");
296 const unsigned char* pixels = mBitmap->GetBuffer();
297 if ( NULL == pixels )
299 DALI_LOG_ERROR("bitmap has no data\n");
300 GlCleanup(); ///!ToDo: Why do we suicide in the case of bad input?
304 if ( mId ) // If the texture is already bound
306 if( updateArea.IsEmpty() )
311 area.width = mImageWidth;
312 area.height = mImageHeight;
313 AreaUpdated( area, pixels );
317 AreaUpdated( updateArea, pixels );
324 void BitmapTexture::ClearAreas( const BitmapClearArray& areaArray, std::size_t blockSize, uint32_t color )
328 DALI_LOG_TRACE_METHOD(Debug::Filter::gImage);
329 DALI_LOG_INFO(Debug::Filter::gGLResource, Debug::Verbose, "BitmapTexture::AreaUpdated()\n");
331 GLenum pixelFormat = GL_RGBA;
332 GLenum pixelDataType = GL_UNSIGNED_BYTE;
333 Integration::ConvertToGlFormat(mPixelFormat, pixelDataType, pixelFormat);
335 mContext.ActiveTexture(GL_TEXTURE7); // bind in unused unit so rebind works the first time
336 mContext.Bind2dTexture(mId);
338 size_t numPixels = blockSize*blockSize;
339 size_t bytesPerPixel = Pixel::GetBytesPerPixel(mPixelFormat);
340 char* clearPixels = (char*)malloc(numPixels * bytesPerPixel);
342 for(size_t i=0; i<numPixels; i++)
344 memcpy(&clearPixels[i*bytesPerPixel], &color, bytesPerPixel);
347 for( BitmapClearArray::const_iterator iter = areaArray.begin(), endIter = areaArray.end(); iter != endIter ; ++iter)
349 const Vector2& clearPos((*iter));
351 mContext.PixelStorei( GL_UNPACK_ALIGNMENT, 1 ); // We always use tightly packed data
352 DALI_LOG_INFO( Debug::Filter::gImage, Debug::General, "Update x:%0.2f y:%0.2f w:%d h:%d\n",
353 clearPos.x, clearPos.y, blockSize, blockSize );
355 mContext.TexSubImage2D(GL_TEXTURE_2D,
361 pixelFormat, /* our bitmap format (should match internal format) */
362 pixelDataType, /* pixel data type */
363 clearPixels); /* texture data */
365 INCREASE_BY( PerformanceMonitor::TEXTURE_DATA_UPLOADED, numPixels * bytesPerPixel );
371 bool BitmapTexture::UpdateOnCreate()
376 bool BitmapTexture::CreateGlTexture()
378 DALI_LOG_TRACE_METHOD(Debug::Filter::gImage);
379 DALI_LOG_INFO(Debug::Filter::gImage, Debug::Verbose, "Bitmap: %s\n", DALI_LOG_GET_OBJECT_C_STR(this));
383 const unsigned char* pixels = mBitmap->GetBuffer();
385 DALI_ASSERT_DEBUG(pixels != NULL);
389 AssignBitmap( true, pixels );
390 mBitmap->DiscardBuffer();
395 const unsigned char* pixels = NULL;
396 std::vector<unsigned char> pixelData;
397 if( ( NULL == pixels ) && ( true == mClearPixels ) )
399 unsigned int size = mWidth * mHeight * Pixel::GetBytesPerPixel(mPixelFormat);
400 pixelData.resize(size, 0);
401 pixels = &pixelData[0];
403 AssignBitmap( true, pixels );
409 bool BitmapTexture::Init()
411 DALI_LOG_TRACE_METHOD(Debug::Filter::gImage);
412 // mBitmap should be initialized by now
413 return (mBitmap != 0);
416 unsigned int BitmapTexture::GetWidth() const
418 unsigned int width = mWidth;
421 width = mBitmap->GetImageWidth();
426 unsigned int BitmapTexture::GetHeight() const
428 unsigned int height = mHeight;
431 height = mBitmap->GetImageHeight();
436 } //namespace Internal