v2.1.1

What's Changed

New Features

• Introduce RuntimeEffect::NextProgramID() to prevent programID conflicts between RuntimeEffect subclasses.
• Prioritize larger Tiles over closer ones in DisplayList for improved rendering quality.
• Use nearest-neighbor sampling for textures to address blurriness in path and text drawing.
• Export FilterImage and PictureImage as bitmaps in SVGs, rather than SVG elements.

Performance Improvements

• Implement HardwareBuffer texture support for text atlases.
• Cache viewport, scissor, program, binding states, and blend states to minimize redundant GL calls.
• Exclude layers outside the visible area in Layer::draw for improved rendering efficiency.
• Set the minimum decoded image size to 1/8 of the original to optimize memory usage.
• Avoid drawing layers to the background context when no background blur is needed.
• Add support for drawScale arguments in the Gaussian blur filter to enable rendering at reduced sizes.
• Fix performance issue caused by deleting tile caches before checking for zoom blur reuse.

Bug Fixes

• Fixed a crash by ensuring each atlas cell buffer is aligned to a 4-byte boundary.
• Fixed a memory leak by properly releasing hardware buffer references.
• Fixed an issue where italic text was not rendering correctly.
• Fix drop shadow offset calculation error in PDF export.
• Fix issue where RRect cannot be drawn when DeviceBounds are needed but LocalBounds are not.
• Fix macro definition conflicts caused by Qt5 on Windows.
• Correct shader code generation for blend modes.
• Fix issue where TiledTextureEffect does not add Subset when using ClampToBorderNearest.
• Fix issue where Image::lockTextureProxy may obtain a TextureProxy with inconsistent backingFit.
• Fix dirty region calculation issues when Layer has LayerStyle or Filter.
• Fixed incorrect stroke width by properly applying shape matrix scaling.
• Fix infinite loop in DisplayList::getFallbackDrawTasks().
• Add [NSOpenGLContext clearCurrentContext] to properly release OpenGL context.
• Fix precision errors caused by float calculations for backingSize.
• Fix issue where syncCpu in Context::submit may not work in certain cases.
• Resolve shader compilation failure due to incorrect OES texture extension string with GLES 3.0.
• Fix compilation issue for unused code in Web platform Release build.