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/compressed-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 CompressedBitmapTexture::CompressedBitmapTexture(Internal::BitmapCompressed* const bitmap, Context& context, ResourcePolicy::Discardable discardPolicy)
41 bitmap->GetImageWidth(),
42 bitmap->GetImageHeight(),
43 bitmap->GetImageWidth(),
44 bitmap->GetImageHeight(),
45 bitmap->GetPixelFormat()),
47 mDiscardPolicy(discardPolicy)
49 DALI_LOG_TRACE_METHOD(Debug::Filter::gImage);
50 DALI_LOG_SET_OBJECT_STRING(this, DALI_LOG_GET_OBJECT_STRING(bitmap));
53 CompressedBitmapTexture::~CompressedBitmapTexture()
55 DALI_LOG_TRACE_METHOD(Debug::Filter::gImage);
56 // GlCleanup() should already have been called by TextureCache ensuring the resource is destroyed
57 // on the render thread. (And avoiding a potentially problematic virtual call in the destructor)
60 bool CompressedBitmapTexture::HasAlphaChannel() const
62 return Pixel::HasAlpha(mPixelFormat);
65 bool CompressedBitmapTexture::IsFullyOpaque() const
69 return mBitmap->IsFullyOpaque();
73 return ! HasAlphaChannel(); // Todo: amalgamate updated bitmap's IsFullyOpaque()
78 void CompressedBitmapTexture::AssignBitmap( bool generateTexture, const unsigned char* const pixels, const size_t bufferSize )
80 DALI_LOG_TRACE_METHOD(Debug::Filter::gImage);
81 DALI_LOG_INFO(Debug::Filter::gGLResource, Debug::Verbose, "CompressedBitmapTexture::AssignBitmap()\n");
85 mContext.GenTextures(1, &mId);
87 DALI_ASSERT_DEBUG( mId != 0 );
89 mContext.ActiveTexture(GL_TEXTURE7); // bind in unused unit so rebind works the first time
90 mContext.Bind2dTexture(mId);
92 GLenum pixelFormat = GL_RGBA;
93 GLenum pixelDataType = GL_UNSIGNED_BYTE;
94 Integration::ConvertToGlFormat(mPixelFormat, pixelDataType, pixelFormat);
96 mContext.PixelStorei(GL_UNPACK_ALIGNMENT, 1); // We always use tightly packed data
97 mContext.CompressedTexImage2D(GL_TEXTURE_2D, 0, pixelFormat, mWidth, mHeight, 0, bufferSize, pixels);
98 mContext.TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
99 mContext.TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
101 INCREASE_BY( PerformanceMonitor::TEXTURE_DATA_UPLOADED, bufferSize );
104 void CompressedBitmapTexture::Update( Integration::Bitmap* bitmap )
106 DALI_ASSERT_DEBUG(bitmap);
107 DALI_ASSERT_DEBUG(mImageWidth == mWidth && mImageHeight == mHeight);
108 DALI_LOG_INFO(Debug::Filter::gGLResource, Debug::General, "CompressedBitmapTexture::Update(bitmap:%p )\n", bitmap);
112 DALI_LOG_ERROR( "Passed a null bitmap to update this compressed bitmap texture." );
116 Internal::BitmapCompressed * const compressedBitmap = dynamic_cast<Dali::Internal::BitmapCompressed*>( bitmap );
117 if( compressedBitmap == 0 )
119 DALI_LOG_ERROR("CompressedBitmapTexture was passed a non-compressed bitmap to update with.\n");
122 mBitmap = compressedBitmap;
124 const unsigned char * const pixels = mBitmap->GetBuffer();
126 DALI_ASSERT_DEBUG(pixels != NULL);
128 if ( NULL == pixels )
130 DALI_LOG_ERROR("Bitmap has no data\n");
134 mImageWidth = mBitmap->GetImageWidth();
135 mImageHeight = mBitmap->GetImageHeight();
136 mWidth = mImageWidth;
137 mHeight = mImageHeight;
138 mPixelFormat = mBitmap->GetPixelFormat();
140 if ( mId ) // If the texture is already bound
142 AssignBitmap( false, pixels, mBitmap->GetBufferSize() );
144 if( mDiscardPolicy == ResourcePolicy::DISCARD )
146 mBitmap->DiscardBuffer();
152 bool CompressedBitmapTexture::UpdateOnCreate()
157 bool CompressedBitmapTexture::CreateGlTexture()
159 DALI_LOG_TRACE_METHOD(Debug::Filter::gImage);
160 DALI_LOG_INFO(Debug::Filter::gImage, Debug::Verbose, "Bitmap: %s\n", DALI_LOG_GET_OBJECT_C_STR(this));
164 const unsigned char* pixels = mBitmap->GetBuffer();
166 DALI_ASSERT_DEBUG(pixels != NULL);
170 AssignBitmap( true, pixels, mBitmap->GetBufferSize() );
171 mBitmap->DiscardBuffer();
176 AssignBitmap( true, NULL, 0 );
182 bool CompressedBitmapTexture::Init()
184 DALI_LOG_TRACE_METHOD(Debug::Filter::gImage);
185 // mBitmap should be initialized by now
186 return (mBitmap != 0);
189 unsigned int CompressedBitmapTexture::GetWidth() const
191 unsigned int width = mWidth;
194 width = mBitmap->GetImageWidth();
199 unsigned int CompressedBitmapTexture::GetHeight() const
201 unsigned int height = mHeight;
204 height = mBitmap->GetImageHeight();
209 } //namespace Internal