#include "image-renderer.h"
// EXTERNAL HEADER
+#include <cstring> // for strncasecmp
#include <dali/public-api/images/resource-image.h>
#include <dali/integration-api/debug.h>
namespace
{
+const char HTTP_URL[] = "http://";
+const char HTTPS_URL[] = "https://";
+
const char * const RENDERER_TYPE("rendererType");
const char * const RENDERER_TYPE_VALUE("imageRenderer");
const char * const DONT_CARE("dontCare");
const std::string TEXTURE_UNIFORM_NAME = "sTexture";
-const std::string TEXTURE_RECT_UNIFORM_NAME = "uTextureRect";
+const std::string ATLAS_RECT_UNIFORM_NAME = "uAtlasRect";
+const std::string PIXEL_AREA_UNIFORM_NAME = "pixelArea";
+
+// Set this uniform to 1.0 for conventional alpha blending; if pre-multiplied alpha blending, set this uniform to 0.0
+const std::string ALPHA_BLENDING_UNIFORM_NAME = "uAlphaBlending";
+
const Vector4 FULL_TEXTURE_RECT(0.f, 0.f, 1.f, 1.f);
const char* VERTEX_SHADER = DALI_COMPOSE_SHADER(
attribute mediump vec2 aPosition;\n
- varying mediump vec2 vTexCoord;\n
uniform mediump mat4 uMvpMatrix;\n
uniform mediump vec3 uSize;\n
- uniform mediump vec4 uTextureRect;\n
+ uniform mediump vec4 uAtlasRect;\n
+ uniform mediump vec4 pixelArea;
+ varying mediump vec2 vTexCoord;\n
\n
void main()\n
{\n
vertexPosition.xyz *= uSize;\n
vertexPosition = uMvpMatrix * vertexPosition;\n
\n
- vTexCoord = mix( uTextureRect.xy, uTextureRect.zw, aPosition + vec2(0.5));\n
+ vTexCoord = mix( uAtlasRect.xy, uAtlasRect.zw, pixelArea.xy+pixelArea.zw*(aPosition + vec2(0.5) ) );\n
gl_Position = vertexPosition;\n
}\n
);
varying mediump vec2 vTexCoord;\n
uniform sampler2D sTexture;\n
uniform lowp vec4 uColor;\n
+ uniform lowp float uAlphaBlending; // Set to 1.0 for conventional alpha blending; if pre-multiplied alpha blending, set to 0.0
\n
void main()\n
{\n
- gl_FragColor = texture2D( sTexture, vTexCoord ) * uColor;\n
+ gl_FragColor = texture2D( sTexture, vTexCoord ) * vec4( uColor.rgb*max( uAlphaBlending, uColor.a ), uColor.a );\n
}\n
);
ImageRenderer::ImageRenderer( RendererFactoryCache& factoryCache, ImageAtlasManager& atlasManager )
: ControlRenderer( factoryCache ),
mAtlasManager( atlasManager ),
- mTextureRect( FULL_TEXTURE_RECT ),
mDesiredSize(),
mFittingMode( FittingMode::DEFAULT ),
- mSamplingMode( SamplingMode::DEFAULT )
+ mSamplingMode( SamplingMode::DEFAULT ),
+ mIsAlphaPreMultiplied( false )
{
}
mDesiredSize = ImageDimensions( desiredWidth, desiredHeight );
}
+ // remove old renderer if exit
if( mImpl->mRenderer )
{
- //remove old renderer
- if( actor )
+ if( actor ) //remove old renderer from actor
{
actor.RemoveRenderer( mImpl->mRenderer );
}
-
- //clean the cache
- if( !oldImageUrl.empty() )
+ if( !oldImageUrl.empty() ) //clean old renderer from cache
{
CleanCache( oldImageUrl );
}
+ }
- //Initialize the renderer
- if( !mImageUrl.empty() )
- {
- InitializeRenderer( mImageUrl );
- }
- else if( mImage )
- {
- InitializeRenderer( mImage );
- }
-
- //add the new renderer to the actor
- if( actor && mImpl->mRenderer )
- {
- actor.AddRenderer( mImpl->mRenderer );
- }
+ // if actor is on stage, create new renderer and apply to actor
+ if( actor && actor.OnStage() )
+ {
+ SetOnStage( actor );
}
}
shader = Shader::New( mImpl->mCustomShader->mVertexShader.empty() ? VERTEX_SHADER : mImpl->mCustomShader->mVertexShader,
mImpl->mCustomShader->mFragmentShader.empty() ? FRAGMENT_SHADER : mImpl->mCustomShader->mFragmentShader,
mImpl->mCustomShader->mHints );
+ if( mImpl->mCustomShader->mVertexShader.empty() )
+ {
+ shader.RegisterProperty( ATLAS_RECT_UNIFORM_NAME, FULL_TEXTURE_RECT );
+ shader.RegisterProperty( PIXEL_AREA_UNIFORM_NAME, FULL_TEXTURE_RECT );
+ shader.RegisterProperty( ALPHA_BLENDING_UNIFORM_NAME, 1.f );
+ }
}
}
void ImageRenderer::InitializeRenderer( const std::string& imageUrl )
{
- if( mImageUrl.empty() )
+ if( imageUrl.empty() )
{
- mImpl->mFlags &= ~Impl::IS_FROM_CACHE;
return;
}
+ mImageUrl = imageUrl;
mImpl->mRenderer.Reset();
- if( !mImpl->mCustomShader )
+
+ if( !mImpl->mCustomShader &&
+ ( strncasecmp( imageUrl.c_str(), HTTP_URL, sizeof(HTTP_URL) -1 ) != 0 ) && // ignore remote images
+ ( strncasecmp( imageUrl.c_str(), HTTPS_URL, sizeof(HTTPS_URL) -1 ) != 0 ) )
{
mImpl->mRenderer = mFactoryCache.GetRenderer( imageUrl );
if( !mImpl->mRenderer )
{
- Material material = mAtlasManager.Add(mTextureRect, imageUrl, mDesiredSize, mFittingMode, mSamplingMode );
- if( material )
- {
- Geometry geometry = CreateGeometry( mFactoryCache, ImageDimensions( 1, 1 ) );
- mImpl->mRenderer = Renderer::New( geometry, material );
- SetTextureRectUniform(mTextureRect);
- }
- else // big image, atlasing is not applied
- {
- mImpl->mRenderer = CreateRenderer();
+ Vector4 atlasRect;
+ Material material = mAtlasManager.Add(atlasRect, imageUrl, mDesiredSize, mFittingMode, mSamplingMode );
+ if( material )
+ {
+ Geometry geometry = CreateGeometry( mFactoryCache, ImageDimensions( 1, 1 ) );
+ mImpl->mRenderer = Renderer::New( geometry, material );
+ mImpl->mRenderer.RegisterProperty( ATLAS_RECT_UNIFORM_NAME, atlasRect );
+ }
+ else // big image, atlasing is not applied
+ {
+ mImpl->mRenderer = CreateRenderer();
- ResourceImage image = Dali::ResourceImage::New( imageUrl );
- image.LoadingFinishedSignal().Connect( this, &ImageRenderer::OnImageLoaded );
- Material material = mImpl->mRenderer.GetMaterial();
- material.AddTexture( image, TEXTURE_UNIFORM_NAME );
- }
+ ResourceImage image = Dali::ResourceImage::New( imageUrl, mDesiredSize, mFittingMode, mSamplingMode );
+ image.LoadingFinishedSignal().Connect( this, &ImageRenderer::OnImageLoaded );
+ Material material = mImpl->mRenderer.GetMaterial();
+ material.AddTexture( image, TEXTURE_UNIFORM_NAME );
+ }
- mFactoryCache.SaveRenderer( imageUrl, mImpl->mRenderer );
- }
- else
- {
- Property::Value textureRect = mImpl->mRenderer.GetProperty( mImpl->mRenderer.GetPropertyIndex(TEXTURE_RECT_UNIFORM_NAME) );
- textureRect.Get( mTextureRect );
+ mFactoryCache.SaveRenderer( imageUrl, mImpl->mRenderer );
}
+
mImpl->mFlags |= Impl::IS_FROM_CACHE;
}
else
{
+ // for custom shader or remote image, renderer is not cached and atlas is not applied
+
mImpl->mFlags &= ~Impl::IS_FROM_CACHE;
mImpl->mRenderer = CreateRenderer();
- ResourceImage image = Dali::ResourceImage::New( imageUrl, mDesiredSize, mFittingMode, mSamplingMode );
- image.LoadingFinishedSignal().Connect( this, &ImageRenderer::OnImageLoaded );
- ApplyImageToSampler( image );
+ ResourceImage resourceImage = Dali::ResourceImage::New( imageUrl, mDesiredSize, mFittingMode, mSamplingMode );
+ resourceImage.LoadingFinishedSignal().Connect( this, &ImageRenderer::OnImageLoaded );
+ ApplyImageToSampler( resourceImage );
}
}
{
mImpl->mFlags &= ~Impl::IS_FROM_CACHE;
- if( !image )
+ mImpl->mRenderer = CreateRenderer();
+
+ if( image )
{
- return;
+ ApplyImageToSampler( image );
}
-
- mImpl->mRenderer = CreateRenderer();
- ApplyImageToSampler( image );
- SetTextureRectUniform( FULL_TEXTURE_RECT );
}
{
InitializeRenderer( mImageUrl );
}
- else if( mImage )
+ else
{
InitializeRenderer( mImage );
}
- if( !GetIsFromCache() )
- {
- Image image = mImage;
- if( !mImageUrl.empty() )
- {
- ResourceImage resourceImage = Dali::ResourceImage::New( mImageUrl, mDesiredSize, mFittingMode, mSamplingMode );
- resourceImage.LoadingFinishedSignal().Connect( this, &ImageRenderer::OnImageLoaded );
- image = resourceImage;
-
- // Set value to the uTextureRect uniform
- SetTextureRectUniform( FULL_TEXTURE_RECT );
- }
-
- ApplyImageToSampler( image );
- }
+ EnablePreMultipliedAlpha( mIsAlphaPreMultiplied );
}
void ImageRenderer::DoSetOffStage( Actor& actor )
{
shader = Shader::New( VERTEX_SHADER, FRAGMENT_SHADER );
factoryCache.SaveShader( RendererFactoryCache::IMAGE_SHADER, shader );
+ shader.RegisterProperty( ATLAS_RECT_UNIFORM_NAME, FULL_TEXTURE_RECT );
+ shader.RegisterProperty( PIXEL_AREA_UNIFORM_NAME, FULL_TEXTURE_RECT );
+ shader.RegisterProperty( ALPHA_BLENDING_UNIFORM_NAME, 1.f );
}
return shader;
}
void ImageRenderer::SetImage( Actor& actor, const std::string& imageUrl, ImageDimensions size, Dali::FittingMode::Type fittingMode, Dali::SamplingMode::Type samplingMode )
{
- mDesiredSize = size;
- mFittingMode = fittingMode;
- mSamplingMode = samplingMode;
-
if( mImageUrl != imageUrl )
{
+ std::string oldImageUrl = mImageUrl;
+ mImageUrl = imageUrl;
+ mDesiredSize = size;
+ mFittingMode = fittingMode;
+ mSamplingMode = samplingMode;
+ mImage.Reset();
+
if( mImpl->mRenderer )
{
- if( GetIsFromCache() )
+ if( GetIsFromCache() ) // if renderer is from cache, remove the old one
{
//remove old renderer
if( actor )
}
//clean the cache
- if( !mImageUrl.empty() )
+ if( !oldImageUrl.empty() )
{
- CleanCache(mImageUrl);
+ CleanCache(oldImageUrl);
}
- //Initialize the renderer
- InitializeRenderer( imageUrl );
-
- //add the new renderer to the actor
- if( actor && mImpl->mRenderer )
+ if( actor && actor.OnStage() ) // if actor on stage, create a new renderer and apply to actor
{
- actor.AddRenderer( mImpl->mRenderer );
+ SetOnStage(actor);
}
}
- else
+ else // if renderer is not from cache, reuse the same renderer and only change the texture
{
ResourceImage image = Dali::ResourceImage::New( imageUrl, mDesiredSize, mFittingMode, mSamplingMode );
image.LoadingFinishedSignal().Connect( this, &ImageRenderer::OnImageLoaded );
ApplyImageToSampler( image );
}
}
-
- mImageUrl = imageUrl;
-
- mImage.Reset();
}
}
{
if( mImage != image )
{
+ mImage = image;
+
if( mImpl->mRenderer )
{
- if( GetIsFromCache() )
+ if( GetIsFromCache() ) // if renderer is from cache, remove the old one
{
//remove old renderer
if( actor )
{
CleanCache(mImageUrl);
}
+ mImageUrl.clear();
- //Initialize the renderer
- InitializeRenderer( image );
-
- //add the new renderer to the actor
- if( actor && mImpl->mRenderer )
+ if( actor && actor.OnStage() ) // if actor on stage, create a new renderer and apply to actor
{
- actor.AddRenderer( mImpl->mRenderer );
+ SetOnStage(actor);
}
}
- else
+ else // if renderer is not from cache, reuse the same renderer and only change the texture
{
ApplyImageToSampler( image );
}
}
- SetTextureRectUniform( FULL_TEXTURE_RECT );
- mImage = image;
mImageUrl.clear();
mDesiredSize = ImageDimensions();
mFittingMode = FittingMode::DEFAULT;
}
}
+void ImageRenderer::EnablePreMultipliedAlpha( bool preMultipled )
+{
+ mIsAlphaPreMultiplied = preMultipled;
+ if( mImpl->mRenderer )
+ {
+ Material material = mImpl->mRenderer.GetMaterial();
+
+ if( preMultipled )
+ {
+ material.SetBlendFunc( BlendingFactor::ONE, BlendingFactor::ONE_MINUS_SRC_ALPHA,
+ BlendingFactor::ONE, BlendingFactor::ONE );
+ if( !mImpl->mCustomShader || mImpl->mCustomShader->mVertexShader.empty())
+ {
+ material.RegisterProperty( ALPHA_BLENDING_UNIFORM_NAME, 0.f );
+ }
+ }
+ else
+ {
+ // using default blend func
+ material.SetBlendFunc( BlendingFactor::SRC_ALPHA, BlendingFactor::ONE_MINUS_SRC_ALPHA,
+ BlendingFactor::ONE, BlendingFactor::ONE_MINUS_SRC_ALPHA );
+
+ Property::Index index = material.GetPropertyIndex( ALPHA_BLENDING_UNIFORM_NAME );
+ if( index != Property::INVALID_INDEX ) // only set value when the property already exist on the Material
+ {
+ material.SetProperty( index, 1.f );
+ }
+ }
+ }
+}
+
void ImageRenderer::ApplyImageToSampler( const Image& image )
{
if( image )
}
}
-void ImageRenderer::SetTextureRectUniform( const Vector4& textureRect )
+void ImageRenderer::CleanCache(const std::string& url)
{
- if( mImpl->mRenderer )
+ Material material = mImpl->mRenderer.GetMaterial();
+
+ Vector4 atlasRect( 0.f, 0.f, 1.f, 1.f );
+ Property::Index index = mImpl->mRenderer.GetPropertyIndex( ATLAS_RECT_UNIFORM_NAME );
+ if( index != Property::INVALID_INDEX )
{
- Property::Index index = mImpl->mRenderer.GetPropertyIndex( TEXTURE_RECT_UNIFORM_NAME );
- if( index == Property::INVALID_INDEX )
- {
- index = mImpl->mRenderer.RegisterProperty( TEXTURE_RECT_UNIFORM_NAME, textureRect );
- }
- else
- {
- mImpl->mRenderer.SetProperty( index, textureRect );
- }
+ Property::Value atlasRectValue = mImpl->mRenderer.GetProperty( index );
+ atlasRectValue.Get( atlasRect );
}
-}
-void ImageRenderer::CleanCache(const std::string& url)
-{
- Material material = mImpl->mRenderer.GetMaterial();
mImpl->mRenderer.Reset();
- if( mFactoryCache.CleanRendererCache( url ) )
+ if( mFactoryCache.CleanRendererCache( url ) && index != Property::INVALID_INDEX )
{
- mAtlasManager.Remove( material, mTextureRect );
+ mAtlasManager.Remove( material, atlasRect );
}
}
projects / platform / core / uifw / dali-toolkit.git / blobdiff