84f2ff1084
This moves the LineAtlas from a shared texture that contained SDF dash patterns to use individual textures. Previously, the texture space was limited to a texture of 512 pixels height. Dash patterns were never removed (and are still never removed as of this patch), which means that this texture could fill up for styles that use a lot of different dash patterns. In particular, dash patterns for lines with a round line cap take up 15 pixels of texture height, limiting the amount of unique dash patterns to 34. While this was probably enough for rendering a single style, we quickly exhausted this number when reusing the Map object to render different styles. Instead of a global shared texture, we're now creating individual textures for every dash pattern. These textures are still cached so that we don't need to re-upload the texture on every frame.
Mapbox GL Native
A library for embedding interactive, customizable vector maps into native applications on multiple platforms. It takes stylesheets that conform to the Mapbox Style Specification, applies them to vector tiles that conform to the Mapbox Vector Tile Specification, and renders them using OpenGL. Mapbox GL JS is the WebGL-based counterpart, designed for use on the Web.
The Mapbox GL ecosystem
This repository hosts the cross-platform Mapbox GL Native library, plus convenient SDKs for several platforms. The cross-platform library comes with a GLFW-based demo application for Ubuntu Linux and macOS. The SDKs target the usual languages on their respective platforms:
| SDK | Languages | Build status |
|---|---|---|
| Mapbox GL Native | C++14 |   |
| Mapbox Maps SDK for Android | Java | |
| Mapbox Maps SDK for iOS | Objective-C or Swift | |
| Mapbox Maps SDK for macOS | Objective-C, Swift, or AppleScript | |
| node-mapbox-gl-native | Node.js | |
| Mapbox Maps SDK for Qt | C++03 | |
Additional Mapbox GL Native–based libraries for hybrid applications are developed outside of this repository. If your platform or hybrid application framework isn’t listed there, consider embedding Mapbox GL JS using the standard Web capabilities on your platform.
License
Mapbox GL Native is licensed under the 2-Clause BSD license. The licenses of its dependencies are tracked via FOSSA:
