/*
- * Copyright (c) 2016 Samsung Electronics Co., Ltd.
+ * Copyright (c) 2022 Samsung Electronics Co., Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
// CLASS HEADER
#include <dali/internal/event/images/pixel-data-impl.h>
-// EXTERNAL INCLUDES
-#include <stdlib.h>
-
-// INTERNAL INCLUDES
-#include <dali/internal/event/images/pixel-manipulation.h>
-
namespace Dali
{
-
namespace Internal
{
-
-PixelData::PixelData( unsigned char* buffer,
- unsigned int bufferSize,
- unsigned int width,
- unsigned int height,
- Dali::Pixel::Format pixelFormat,
- Dali::PixelData::ReleaseFunction releaseFunction )
-: mBuffer( buffer ),
- mBufferSize( bufferSize ),
- mWidth( width ),
- mHeight( height ),
- mPixelFormat( pixelFormat ),
- mReleaseFunction( releaseFunction )
+PixelData::PixelData(uint8_t* buffer,
+ uint32_t bufferSize,
+ uint32_t width,
+ uint32_t height,
+ uint32_t stride,
+ Pixel::Format pixelFormat,
+ Dali::PixelData::ReleaseFunction releaseFunction)
+: mBuffer(buffer),
+ mBufferSize(bufferSize),
+ mWidth(width),
+ mHeight(height),
+ mStride(stride),
+ mPixelFormat(pixelFormat),
+ mReleaseFunction(releaseFunction)
{
}
PixelData::~PixelData()
{
- if( mBuffer )
+ if(mBuffer)
{
- ReleaseBuffer();
+ if(mReleaseFunction == Dali::PixelData::FREE)
+ {
+ free(mBuffer);
+ }
+ else
+ {
+ delete[] mBuffer;
+ }
}
}
-PixelDataPtr PixelData::New(unsigned char* buffer,
- unsigned int bufferSize,
- unsigned int width,
- unsigned int height,
- Dali::Pixel::Format pixelFormat,
+PixelDataPtr PixelData::New(uint8_t* buffer,
+ uint32_t bufferSize,
+ uint32_t width,
+ uint32_t height,
+ uint32_t stride,
+ Pixel::Format pixelFormat,
Dali::PixelData::ReleaseFunction releaseFunction)
{
- return new PixelData( buffer, bufferSize, width, height, pixelFormat, releaseFunction );
+ return new PixelData(buffer, bufferSize, width, height, stride, pixelFormat, releaseFunction);
}
-unsigned int PixelData::GetWidth() const
+uint32_t PixelData::GetWidth() const
{
return mWidth;
}
-unsigned int PixelData::GetHeight() const
+uint32_t PixelData::GetHeight() const
{
return mHeight;
}
-Dali::Pixel::Format PixelData::GetPixelFormat() const
+Pixel::Format PixelData::GetPixelFormat() const
{
return mPixelFormat;
}
-unsigned char* PixelData::GetBuffer() const
+uint8_t* PixelData::GetBuffer() const
{
return mBuffer;
}
-unsigned int PixelData::GetBufferSize() const
+uint32_t PixelData::GetBufferSize() const
{
return mBufferSize;
}
-void PixelData::ReleaseBuffer()
-{
- if( mReleaseFunction == Dali::PixelData::FREE)
- {
- free( mBuffer );
- }
- else
- {
- delete[] mBuffer;
- }
-}
-
-void PixelData::ApplyMask( const PixelData& mask )
-{
- int byteOffset=0;
- int bitMask=0;
- Dali::Pixel::GetAlphaOffsetAndMask(mPixelFormat, byteOffset, bitMask);
-
- if( Dali::Pixel::HasAlpha( mPixelFormat ) && bitMask == 255 )
- {
- ApplyMaskToAlphaChannel( mask );
- }
- else
- {
- AddAlphaChannel(mask);
- }
-}
-
-void PixelData::ApplyMaskToAlphaChannel( const PixelData& mask )
-{
- const float rowFactor = float(mask.mHeight) / (1.0f * mHeight);
- const float colFactor = float(mask.mWidth) / (1.0f * mWidth) ;
-
- int numSamples = 1;
- if( mask.mHeight > mHeight || mask.mWidth > mWidth )
- {
- numSamples = 4;
- }
-
- int srcAlphaByteOffset=0;
- int srcAlphaMask=0;
- Dali::Pixel::GetAlphaOffsetAndMask( mask.mPixelFormat, srcAlphaByteOffset, srcAlphaMask );
-
- int destAlphaByteOffset=0;
- int destAlphaMask=0;
- Dali::Pixel::GetAlphaOffsetAndMask( mPixelFormat, destAlphaByteOffset, destAlphaMask );
-
- unsigned int srcBytesPerPixel = Dali::Pixel::GetBytesPerPixel( mask.mPixelFormat );
- unsigned int destBytesPerPixel = Dali::Pixel::GetBytesPerPixel( mPixelFormat );
- int srcStride = mask.mWidth * srcBytesPerPixel;
-
- int srcOffset=0;
- int destOffset=0;
-
- float srcAlphaValue = 1.0f;
-
- for( unsigned int row = 0; row < mHeight; ++row )
- {
- for( unsigned int col = 0; col < mWidth; ++col )
- {
- if( numSamples == 1 )
- {
- srcOffset = floorf(row * rowFactor) * srcStride + floorf(col * colFactor) * srcBytesPerPixel;
- unsigned char alpha = mask.mBuffer[srcOffset + srcAlphaByteOffset] & srcAlphaMask;
- srcAlphaValue = float(alpha)/255.0f;
- }
- else
- {
- srcAlphaValue = mask.ReadWeightedSample( col*colFactor, row*rowFactor );
- }
-
- unsigned char destAlpha = mBuffer[destOffset + destAlphaByteOffset] & destAlphaMask;
- float destAlphaValue = Clamp(float(destAlpha) * srcAlphaValue, 0.0f, 255.0f);
- destAlpha = destAlphaValue;
- mBuffer[destOffset + destAlphaByteOffset] &= ~destAlphaMask;
- mBuffer[destOffset + destAlphaByteOffset] |= ( destAlpha & destAlphaMask );
-
- destOffset += destBytesPerPixel;
- }
- }
-}
-
-void PixelData::AddAlphaChannel( const PixelData& mask )
+DevelPixelData::PixelDataBuffer PixelData::ReleaseBuffer()
{
- const float rowFactor = float(mask.mHeight) / (1.0f * mHeight);
- const float colFactor = float(mask.mWidth) / (1.0f * mWidth) ;
-
- int numSamples = 1;
- if( mask.mHeight > mHeight || mask.mWidth > mWidth )
- {
- numSamples = 4;
- }
-
- // Set up source alpha offsets
- int srcAlphaByteOffset=0;
- int srcAlphaMask=0;
- Dali::Pixel::GetAlphaOffsetAndMask( mask.mPixelFormat, srcAlphaByteOffset, srcAlphaMask );
-
- unsigned int srcAlphaBytesPerPixel = Dali::Pixel::GetBytesPerPixel( mask.mPixelFormat );
- int srcAlphaStride = mask.mWidth * srcAlphaBytesPerPixel;
-
- // Set up source color offsets
- unsigned int srcColorBytesPerPixel = Dali::Pixel::GetBytesPerPixel( mPixelFormat );
-
- // Setup destination offsets
- Dali::Pixel::Format destPixelFormat = Dali::Pixel::RGBA8888;
- unsigned int destBytesPerPixel = Dali::Pixel::GetBytesPerPixel( destPixelFormat );
- int destAlphaByteOffset=0;
- int destAlphaMask=0;
- Dali::Pixel::GetAlphaOffsetAndMask( destPixelFormat, destAlphaByteOffset, destAlphaMask );
-
- int destBufferSize = mWidth * mHeight * destBytesPerPixel;
- unsigned char* destBuffer = static_cast<unsigned char*>( malloc( destBufferSize ) );
-
- int srcAlphaOffset=0;
- int srcColorOffset=0;
- int destOffset=0;
- bool hasAlpha = Dali::Pixel::HasAlpha(mPixelFormat);
-
- float srcAlphaValue = 1.0f;
- unsigned char destAlpha = 0;
-
- for( unsigned int row = 0; row < mHeight; ++row )
- {
- for( unsigned int col = 0; col < mWidth; ++col )
- {
- if( numSamples == 1 )
- {
- srcAlphaOffset = floorf(row * rowFactor) * srcAlphaStride + floorf(col * colFactor) * srcAlphaBytesPerPixel;
- unsigned char alpha = mask.mBuffer[srcAlphaOffset + srcAlphaByteOffset] & srcAlphaMask;
- srcAlphaValue = float(alpha)/255.0f;
- }
- else
- {
- srcAlphaValue = mask.ReadWeightedSample( col*colFactor, row*rowFactor );
- }
-
- Pixel::ConvertColorChannelsToRGBA8888(mBuffer, srcColorOffset, mPixelFormat, destBuffer, destOffset );
-
- if( hasAlpha )
- {
- destAlpha = mBuffer[destOffset + destAlphaByteOffset] & destAlphaMask;
- float destAlphaValue = Clamp(float(destAlpha) * srcAlphaValue, 0.0f, 255.0f);
- destAlpha = destAlphaValue;
- }
- else
- {
- destAlpha = floorf(Clamp(srcAlphaValue * 255.0f, 0.0f, 255.0f));
- }
-
- destBuffer[destOffset + destAlphaByteOffset] &= ~destAlphaMask;
- destBuffer[destOffset + destAlphaByteOffset] |= ( destAlpha & destAlphaMask );
-
- srcColorOffset += srcColorBytesPerPixel;
- destOffset += destBytesPerPixel;
- }
- }
-
- ReleaseBuffer();
-
- mBuffer = destBuffer;
- mBufferSize = destBufferSize;
- mPixelFormat = Dali::Pixel::RGBA8888;
- mReleaseFunction = Dali::PixelData::FREE;
+ DevelPixelData::PixelDataBuffer pixelDataBuffer(mBuffer, mBufferSize, mReleaseFunction);
+ mBuffer = nullptr;
+ return pixelDataBuffer;
}
-float PixelData::ReadWeightedSample( float x, float y ) const
+uint32_t PixelData::GetStride() const
{
- unsigned int srcRow = floorf( y );
- unsigned int srcCol = floorf( x );
-
- int bytesPerPixel = Dali::Pixel::GetBytesPerPixel( mPixelFormat );
- int stride = mWidth * bytesPerPixel;
- int srcOffset = srcRow * stride + srcCol * bytesPerPixel;
- float samples[4];
-
- samples[0] = ReadChannel( mBuffer + srcOffset, mPixelFormat, Pixel::ALPHA );
-
- if( srcCol < mWidth-1 )
- {
- samples[1] = ReadChannel( mBuffer + srcOffset+bytesPerPixel, mPixelFormat, Pixel::ALPHA );
- }
- else
- {
- samples[1] = samples[0];
- }
-
- if( srcRow < mHeight-1 )
- {
- samples[2] = ReadChannel( mBuffer + stride + srcOffset, mPixelFormat, Pixel::ALPHA );
- }
- else
- {
- samples[2] = samples[0];
- }
-
- if( srcRow < mHeight-1 && srcCol < mWidth-1 )
- {
- samples[3] = ReadChannel( mBuffer + stride + srcOffset + bytesPerPixel, mPixelFormat, Pixel::ALPHA );
- }
- else
- {
- samples[3] = samples[2];
- }
-
- // Bilinear interpolation:
- float weight[4];
- weight[0] = float(srcRow+1.0f) - y;
- weight[1] = y - float(srcRow);
- weight[2] = float(srcCol+1.0f) - x;
- weight[3] = x - float(srcCol);
-
- return ( weight[2] * (samples[0] * weight[0] + samples[1] * weight[1]) +
- weight[3] * (samples[2] * weight[0] + samples[3] * weight[1]) ) / 256.0f;
+ return mStride;
}
+} // namespace Internal
-}// namespace Internal
-
-}// namespace Dali
+} // namespace Dali
projects / platform / core / uifw / dali-core.git / blobdiff