Changelog

[1.8.1] - 2026-01-27

Warning

This version has bugs related to the images; please use version 1.7.2 while waiting for the next version.

UI Pack

Changed

  • Compatible with UI Pack 14.4.1 (Trace management).

Note

This pack fixes the memory leak that occurs when a feature is killed while a BufferedVectorImage, an external RAW image, or a filtered image is open. To avoid potential side effects from the release of objects (images, fonts) retained by a feature during the killing of that feature, ensure that no third-party components (e.g., GPU) are using these objects at the time of the kill. UI packs with versions higher than 14.5.1 provide the blocking API LLUI_DISPLAY_waitAsynchronousDrawingEnd(). This API is stubbed on the VG Pack for backward compatibility issues between VG Pack 1.8.1 and UI Packs [14.4.0, 14.5.1]. However, it is highly recommended to use a UI Pack version greater than 14.5.1.

MicroVG

Changed

  • Harmonize the trace events (SystemView description file SYSVIEW_MicroVG.txt is updated).

Fixed

  • Fix the memory leak when a feature is killed whereas a BufferedVectorImage, an external RAW image or a filtered image is opened.

  • Fix the closing of a font that was opened twice, which caused both fonts (same object) to close simultaneously.

  • Fix the clearing of a BufferedVectorImage when its clip is null: the content was not deleted at all.

Removed

  • Remove the cache of the vector fonts: each call to VectorFont.loadFont() creates a new instance.

Front Panel

Changed

  • Trace the drawing functions like the embedded side.

Fixed

  • Fix the nema image decoder: fill rule was not correctly decoded.

C Module MicroVG

Added

  • Add the implementation of the MicroVG native function LLVG_IMPL_initialize(); the C Module GPU cannot implement this function anymore.

Changed

  • Change the internal format (SNI context) of the Vector images (native methods are not backward compatible).

  • Move the image trace events from native side to library side.

  • Improve traces of drawing functions.

  • Change the type of the parameter glyph_idx in the function VG_HELPER_layout_load_glyph().

  • Change the options configuration to follow the general rule of vg_conguration.h: default values are 0 (means “disabled”):

    • VG_FEATURE_FREETYPE_TTF

    • VG_FEATURE_FREETYPE_OTF

    • VG_FEATURE_FREETYPE_COLORED_EMOJI

    • VG_FEATURE_FONT_COMPLEX_LAYOUT

    • VG_FEATURE_FONT_EXTERNAL

    • VG_FEATURE_BUFFERED_VECTOR_IMAGE

Removed

  • Remove the function VG_HELPER_initialize() (replaced by implementation of the function LLVG_IMPL_initialize()).

  • Remove the weak implementation of the function VG_DRAWING_initialize(): the C Module GPU must initialize its components.

  • Remove the traces “image” (moved in MicroVG library).

C Module VGLite

Changed

  • Move the C Module initialization in the function VG_DRAWING_initialize() (specification of C Module MicroVG 8.0.0).

Fixed

  • Fix the memory leak when a feature is killed whereas a BufferedVectorImage, an external RAW image or a filtered image is opened.

Removed

  • Remove the file LLVG_impl_vglite.c.

  • Remove the traces “image” (moved in MicroVG library).

C Module NemaVG

Changed

  • Move the C Module initialization in the function VG_DRAWING_initialize() (specification of C Module MicroVG 8.0.0).

Fixed

  • Fix the memory leak when a feature is killed whereas a BufferedVectorImage, an external RAW image or a filtered image is opened.

Removed

  • Remove the file LLVG_impl_vglite.c.

  • Remove the traces “image” (moved in MicroVG library).

C Module FreeType

Changed

  • Upgrade FreeType from the version 2.13.3 (2024-08-11) to the version 2.14.1 (2025-09-11).

  • Make the C Module compatible with the new option configuration of C Module MicroVG 8.0.0.

C Module HarfBuzz

Changed

  • Upgrade HarfBuzz from the version 10.0.1 (2024-09-24) to the version 12.3.0 (2025-12-27).

  • Make the C Module compatible with the new option configuration of C Module MicroVG 8.0.0.

[1.7.2] - 2025-09-15

MicroVG

Fixed

  • Include SYSVIEW_MicroVG.txt in the library jar file (similarly to MicroUI library).

Front Panel

Fixed

  • Fix the drawing of gradient in a BufferedVectorImage.

Vector Image Converter

Fixed

  • Fix the generation of RAW vector images when building a feature.

C Module MicroVG

Fixed

  • Fix the usage of LLTRACE_impl.h with the Architecture 8.x.

  • Fix the default options in vg_conguration.h: some options are disabled by default.

C Module VGLite

Fixed

  • Fix the initialization of the BufferedVectorImage support.

  • Fix the drawing of a filtered image with opacity.

C Module NemaVG

Fixed

  • Fix the initialization of the BufferedVectorImage support.

  • Fix the invalid include directive to display.h (now requires the defines RESX and RESY).

  • Fix the drawing of a filtered image with opacity.

  • Fix the rendering of some texts on a BufferedVectorImage (invalid bounding box).

[1.7.1] - 2025-04-09

Front Panel

Fixed

  • Fix the drawing bounds of the BufferedVectorImage’s elements.

  • Fix the drawing of a BufferedVectorImage outside the destination’s clip.

  • Fix the drawing of the BufferedVectorImage’s elements which are outside the BufferedVectorImage’s clip.

  • Fix the drawing of gradient paths with zero or one color.

  • Fix the management of transparent gradients for the NemaVG GPU.

C Module MicroVG

Fixed

  • Fix the dependency to Freetype (MicroUI Font drawings with vector fonts).

C Module VGLite

Fixed

  • Fix the drawing of a BufferedVectorImage when applying a rotation.

  • Fix the drawing bounds of the BufferedVectorImage’s elements.

  • Fix the use of clip when drawing a BufferedVectorImage that contains vector images.

  • Fix the clip when drawing a vector image in a BufferedVectorImage.

  • Fix the drawing of gradient paths with zero or one color.

Removed

  • Remove useless and invalid external field declaration.

  • Remove dependency to a specific version of Freetype: the C Module Freetype must be fetched independently.

C Module NemaVG

Fixed

  • Fix the drawing of a BufferedVectorImage when applying a rotation.

  • Fix the drawing bounds of the BufferedVectorImage’s elements.

  • Fix the use of clip when drawing a BufferedVectorImagee that contains vector images.

  • Fix the clip when drawing a vector image in a BufferedVectorImage.

  • Fix the drawing of gradient paths with zero or one color.

[1.7.0] - 2024-10-09

UI Pack

Changed

  • Compatible with UI Pack 14.1.1 (Font extensibility).

MicroVG

C Module FreeType

Changed

  • Upgrade FreeType from the version 2.11.0 (2021-07-18) to the version 2.13.3 (2024-08-11).

  • Separate the original FreeType files from MicroEJ’s files.

  • Use the original FreeType directory layout.

  • Add a patch file to override FreeType’s memory management without modifying the original file.

C Module HarfBuzz

Changed

  • Upgrade HarfBuzz from the version 4.2.1 (2022-04-24) to the version 10.0.1 (2024-09-24).

  • Separate the original HarfBuzz files from MicroEJ’s files.

[1.6.0] - 2024-07-19

MicroVG

Added

  • Allow the nema value for the MicroVG implementation (see Installation).

Changed

  • Compatible with UI Pack 14.0.1.

Front Panel

Added

  • Support nema image format and limitations (blend modes SCREEN and MULTIPLY are not supported).

LLAPIs

Added

  • Add the LLAPI LLVG_MATRIX_IMPL_transformPoint.

  • Add the new type MICROVG_Image.

Changed

  • Change the semantic of the LLAPI LLVG_GRADIENT_IMPL_initializeGradient: the positions array cannot be NULL.

  • Add const modifiers for parameters of the following functions:

    • LLVG_GRADIENT_IMPL_initializeGradient,

    • LLVG_MATRIX_IMPL_copy,

    • LLVG_MATRIX_IMPL_multiply,

    • LLVG_MATRIX_IMPL_setConcat,

    • LLVG_MATRIX_IMPL_concatenate,

    • LLVG_MATRIX_IMPL_postConcat.

  • Use the new type MICROVG_Image in the signature of the following functions:

    • LLVG_BVI_IMPL_map_context,

    • LLVG_PAINTER_IMPL_drawImage.

[1.5.1] - 2024-04-11

Front Panel

Fixed

  • Fix the drawing of a BufferedVectorImage in a BufferedVectorImage with a clip.

  • Fix the drawing of a glyph with path overlap.

C Module VGLite

Fixed

  • Fix the drawing of a VG RAW image in a BufferedVectorImage with a clip.

[1.5.0] - 2024-02-15

UI Pack

Changed

  • Compatible with UI Pack 14.0.0 (Major version).

MicroVG

Fixed

  • Fix the exception when loading a font or an image with an empty path.

  • Fix the release of the BufferedVectorImage resources.

Front Panel

Fixed

  • Fix the memory leak on images (ResourceVectorImage and BufferedVectorImage).

LLAPIs

Fixed

  • Fix comment in header file LLVG_BVI_impl.h.

C Module MicroVG

Added

  • Add the API freeImageResources that allows to fix the release of the BufferedVectorImage resources.

Fixed

  • Fix traces when debugging the SNI resources with external resource support.

  • Remove an unused include.

  • Do not define Freetype variables if VG_FEATURE_FONT is not defined.

  • Do not call MICROVG_PATH_initialize() if VG_FEATURE_PATH is not defined.

C Module VGLite

Fixed

  • Fix the storing of color matrices in the BufferedVectorImage.

[1.4.2] - 2023-11-13

MicroVG

Added

  • Add some traces when debugging the SNI resources.

Fixed

  • Fix dynamic paths larger than 64 KB.

Front Panel

Fixed

  • Fix dynamic paths larger than 64 KB.

C Module MicroVG

Added

  • Add some traces when debugging the SNI resources (external VectorFont).

Fixed

  • Fix dynamic paths larger than 64 KB.

  • Fix some comments.

C Module VGLite

Fixed

  • Fix some comments.

  • Fix the dynamic path drawing on i.MX RT1170 Evaluation Kit (use the same quality of paths as vector images).

  • Fix the path drawing on i.MX RT1170 Evaluation Kit (disable the color pre-multiplication).

  • Fix the rendering of some blending modes on i.MX RT1170 Evaluation Kit by disabling the GPU pre-multiplication when required.

[1.4.1] - 2023-09-21

MicroVG

Fixed

  • Fix the path command “move relative”.

C Module VGLite

Added

  • Add the compatibility with VGLite 3.0.15_rev7.

Fixed

  • Fix the use of the define VG_BLIT_WORKAROUND (useless).

  • Fix the GPU deactivation when a drawing is not performed for any reason.

[1.4.0] - 2023-07-21

UI Pack

Fixed

  • Fix the UI Pack minimal compatible version (13.5.0).

MicroVG

Added

Changed

Fixed

  • Fix path bounds computation.

C Module MicroVG

Fixed

  • Fix the SystemView trace identifiers.

  • Fix the documentation of MICROVG_HELPER_get_utf().

  • Fix FreeType fonts closing twice.

C Module VGLite

Added

  • Add support for DST_OUT and PLUS blend modes (VG Pack 1.4.0).

Fixed

  • Fix performing drawings when the clip is disabled.

  • Fix the SystemView trace identifiers.

  • Remove the include of the unknown header file trace_vglite.h (require a re-build of FreeType library).

[1.3.0] - 2023-05-10

UI Pack

Changed

  • Compatible with UI Pack 13.5.0 (BufferedImage with custom format).

MicroVG

Changed

Front Panel

Fixed

  • Simplify pixel data conversion after drawing.

C Module MicroVG

Added

  • Add the compatibility with multiple Graphics Context output formats (UI Pack 13.5.0).

  • Add stub implementations for all MicroVG library algorithms.

  • Add LLVG_PAINTER_impl.c to implement all MicroVG drawings and dispatch them to vg_drawing.h (like MicroUI and LLUI_PAINTER_impl.c / ui_drawing.h).

  • Add the MicroVG BufferedVectorImage definition (the functions to implement to draw into it).

Changed

  • C Module MicroVG now depends on C Module MicroUI (to manage the support of multiple Graphics Context output formats).

Fixed

  • Remove an extraneous file.

  • Fix issue when measuring string width in complex layout mode.

Removed

  • Remove the useless implementation of LLVG_PATH_IMPL_mergePaths (useless since VG Pack 1.2).

  • Remove partial Freetype implementation that manipulates the font’s glyphs as bitmaps (not compatible anymore with VG pack 1.3.0).

C Module VGLite

Added

  • Add the implementation of all MicroUI, Drawing and MicroVG drawings in MicroVG BufferedVectorImage.

  • Add incident reporting with drawing log flags (UI Pack 13.5.0).

Changed

  • Merge BufferedVectorImage and RAW formats.

  • Simplify the gradient modification according to the caller translation.

Fixed

  • Fix the path to render during a path data animation.

Removed

  • Remove LLVG_BVI_impl.c: code is merged in LLVG_RAW_impl.c.

  • Remove (move) some utility functions to C Module MicroUI-VGLite.

  • Remove draw String native functions implementation (implemented in C Module MicroVG).

[1.2.1] - 2023-02-06

Front Panel

Fixed

  • Fix the cropped images when using GraphicsContext clip and translation.

C Module VGLite

Fixed

  • Fix the drawing of RAW images with multiple gradients in BufferedVectorImage.

  • Fix a deadlock when drawing an empty BufferedVectorImage.

  • Fix the interface between FreeType and MicroVG (remove useless parameter).

  • Fix the synchronization with the Graphics Engine when a VG drawing is not performed (draw path, draw gradient, draw string).

[1.2.0] - 2022-12-30

MicroVG

Changed

  • Compatible with MicroVG API 1.2.

  • Change the VectorImage internal format: raw format instead of immutables format.

Front Panel

Fixed

  • Fix the redirection of fillEllipseArc to the right software algorithm.

Vector Image Converter

Added

  • Add “fill alpha” animations to gradient elements.

C Module MicroVG

Added

  • Add LLVG_MATRIX_IMPL_multiply(c,a,b) (C = AxB): faster than setConcat when destination and source target the same matrix.

  • Add an entry point to initialize the path engine on startup.

Changed

  • Prevent a copy in a temp matrix when calling postXXX functions.

Fixed

  • Fix A.setConcat(B,A).

C Module VGLite

Added

  • Add the compatibility with VGLite 3.0.15_rev4 (not backward compatible).

  • Add the VectorImage in binary format management (RAW format).

  • Add loading of VectorImage from external resource system.

Changed

  • Reduce the gradient footprint in BufferedVectorImage.

  • Harmonize the use of vg_drawer.h functions (instead of VG_DRAWER_drawer_t functions) in BufferedVectorImage.

  • Use the global fields VGLite paths instead of functions fields (prevent dynamic allocation on task stack).

Fixed

  • Fix the drawing of a text in a BufferedVectorImage: do not wake-up the GPU.

  • Fix the constants used in get_command_parameter_number() function (no side-effect).

[1.1.1] - 2022-09-05

UI Pack

Changed

  • Compatible with UI Pack 13.3.0 (Internal feature).

MicroVG

Changed

  • Compatible with MicroVG API 1.1.

  • Change color animation interpolation (match Android formula).

Fixed

  • Fix NullPointerException while sorting TranslateXY VectorDrawableObjectAnimator in vectorimage-converter.

LLAPIs

Added

  • Add LLAPI to close a font: LLVG_FONT_IMPL_dispose().

Changed

  • Manage the font complex layout.

  • Returns an error code when drawing something.

C Module MicroVG

Added

  • Add microvg_configuration.h versioning.

  • Add an option to load a VectorFont from the external resources.

  • Add an option to select the text layouter between FreeType and Harfbuzz.

  • Add a function to apply an opacity on a color.

  • Add the text layout.

Changed

  • Configure FreeType from microvg_configuration.h header file.

C Module VGLite

Added

  • Add the BufferedVectorImage feature (BVI).

Changed

  • Manage the closed fonts.

  • Move ftvglite.c and ftvglite.h to C Module FreeType.

  • Extract text layout to C Module MicroVG.

  • Get fill rule configuration from each glyph FT_Outline->flags instead of defaulting it to VG_LITE_FILL_EVEN_ODD.

  • Use the MicroUI over VGLite’s Vectorial Drawer mechanism.

  • Join character bboxes at baseline for drawStringOnCircle.

[1.0.1] - 2022-05-16

MicroVG

Fixed

  • Fix incorrect transformation of animated paths while creating a filtered image.

[1.0.0] - 2022-05-13

  • Initial release.

UI Pack

  • Compatible with UI Pack 13.2.0 or higher.

MicroVG

  • Compatible with MicroVG API 1.0.0.