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>
22 #include <dali/integration-api/debug.h>
23 #include <dali/internal/render/common/performance-monitor.h>
24 #include <dali/internal/render/gl-resources/context.h>
25 #include <dali/internal/render/gl-resources/texture-units.h>
33 CompressedBitmapTexture::CompressedBitmapTexture(Internal::BitmapCompressed* const bitmap, Context& context, ResourcePolicy::Discardable discardPolicy)
35 bitmap->GetImageWidth(),
36 bitmap->GetImageHeight(),
37 bitmap->GetImageWidth(),
38 bitmap->GetImageHeight()),
40 mDiscardPolicy(discardPolicy),
41 mPixelFormat( bitmap->GetPixelFormat() )
43 DALI_LOG_TRACE_METHOD(Debug::Filter::gImage);
44 DALI_LOG_SET_OBJECT_STRING(this, DALI_LOG_GET_OBJECT_STRING(bitmap));
47 CompressedBitmapTexture::~CompressedBitmapTexture()
49 DALI_LOG_TRACE_METHOD(Debug::Filter::gImage);
50 // GlCleanup() should already have been called by TextureCache ensuring the resource is destroyed
51 // on the render thread. (And avoiding a potentially problematic virtual call in the destructor)
54 bool CompressedBitmapTexture::HasAlphaChannel() const
56 return Pixel::HasAlpha(mPixelFormat);
59 bool CompressedBitmapTexture::IsFullyOpaque() const
63 return mBitmap->IsFullyOpaque();
67 return ! HasAlphaChannel(); // Todo: amalgamate updated bitmap's IsFullyOpaque()
72 void CompressedBitmapTexture::AssignBitmap( bool generateTexture, const unsigned char* const pixels, const size_t bufferSize )
74 DALI_LOG_TRACE_METHOD(Debug::Filter::gImage);
75 DALI_LOG_INFO(Debug::Filter::gGLResource, Debug::Verbose, "CompressedBitmapTexture::AssignBitmap()\n");
79 mContext.GenTextures(1, &mId);
81 DALI_ASSERT_DEBUG( mId != 0 );
83 mContext.ActiveTexture( TEXTURE_UNIT_UPLOAD );
84 mContext.Bind2dTexture(mId);
86 GLenum pixelFormat = GL_RGBA;
87 GLenum pixelDataType = GL_UNSIGNED_BYTE;
88 Integration::ConvertToGlFormat(mPixelFormat, pixelDataType, pixelFormat);
90 mContext.PixelStorei(GL_UNPACK_ALIGNMENT, 1); // We always use tightly packed data
91 mContext.CompressedTexImage2D(GL_TEXTURE_2D, 0, pixelFormat, mWidth, mHeight, 0, bufferSize, pixels);
92 mContext.TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
93 mContext.TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
97 void CompressedBitmapTexture::Update( Integration::Bitmap* bitmap )
99 DALI_ASSERT_DEBUG(bitmap);
100 DALI_ASSERT_DEBUG(mImageWidth == mWidth && mImageHeight == mHeight);
101 DALI_LOG_INFO(Debug::Filter::gGLResource, Debug::General, "CompressedBitmapTexture::Update(bitmap:%p )\n", bitmap);
105 DALI_LOG_ERROR( "Passed a null bitmap to update this compressed bitmap texture." );
109 Internal::BitmapCompressed * const compressedBitmap = dynamic_cast<Dali::Internal::BitmapCompressed*>( bitmap );
110 if( compressedBitmap == 0 )
112 DALI_LOG_ERROR("CompressedBitmapTexture was passed a non-compressed bitmap to update with.\n");
115 mBitmap = compressedBitmap;
117 const unsigned char * const pixels = mBitmap->GetBuffer();
119 DALI_ASSERT_DEBUG(pixels != NULL);
121 if ( NULL == pixels )
123 DALI_LOG_ERROR("Bitmap has no data\n");
127 mImageWidth = mBitmap->GetImageWidth();
128 mImageHeight = mBitmap->GetImageHeight();
129 mWidth = mImageWidth;
130 mHeight = mImageHeight;
131 mPixelFormat = mBitmap->GetPixelFormat();
133 if ( mId ) // If the texture is already bound
135 AssignBitmap( false, pixels, mBitmap->GetBufferSize() );
140 bool CompressedBitmapTexture::UpdateOnCreate()
145 bool CompressedBitmapTexture::CreateGlTexture()
147 DALI_LOG_TRACE_METHOD(Debug::Filter::gImage);
148 DALI_LOG_INFO(Debug::Filter::gImage, Debug::Verbose, "Bitmap: %s\n", DALI_LOG_GET_OBJECT_C_STR(this));
152 const unsigned char* pixels = mBitmap->GetBuffer();
154 DALI_ASSERT_DEBUG(pixels != NULL);
158 AssignBitmap( true, pixels, mBitmap->GetBufferSize() );
159 mBitmap->DiscardBuffer();
164 AssignBitmap( true, NULL, 0 );
170 bool CompressedBitmapTexture::Init()
172 DALI_LOG_TRACE_METHOD(Debug::Filter::gImage);
173 // mBitmap should be initialized by now
174 return (mBitmap != 0);
177 unsigned int CompressedBitmapTexture::GetWidth() const
179 unsigned int width = mWidth;
182 width = mBitmap->GetImageWidth();
187 unsigned int CompressedBitmapTexture::GetHeight() const
189 unsigned int height = mHeight;
192 height = mBitmap->GetImageHeight();
197 } //namespace Internal