[core] Implement image expression (#15877)

* [core] Bump gl-js version
* [core] Implement image expression
* [core] Use new image expression
* [core] Coerce image expression to / from string
* [core] Serialize evaluated image
* [core] Pass available images to layout
* [core] Pass images to evaluation context
* [core] Set available flag value based on image availability
* [core] Allow image coercion to boolean to indicate image availability
* [core] Coalesce image expression
* [core] Add image expression to next build system
* [core] Align serialization format and evaluated type with gl-js
* [core] Add images to expression evaluation method
* [core] Add support for Image expression to expression test runner
* [core] Unskip image expression tests
* [core] Update unit tests
* [core] Use image expression in annotation manager
* [core] Add string to ImageExpression conversion
* [core] Add image expression to expression dsl
* [core] Convert tokens for implicitly created Image literal
* [core] Fix clang format
* [core] Split generated style code lines that are over 120 characters
* [core] Add unit test for image expression equality
* [core] Add image property expression evaluation unit test
* [core] Unskip image expression render test
* [core] Skip 'in' expression tests
* [core] Ignore fill-pattern/update-feature-state render test
* [core] Rename Image::serialize to Image::toValue

1 files changed, 6 insertions, 0 deletions

diff --git a/src/mbgl/renderer/image_manager.cpp b/src/mbgl/renderer/image_manager.cpp
index 2ea753d8aa..4927ade8e9 100644
--- a/src/mbgl/renderer/image_manager.cpp
+++ b/src/mbgl/renderer/image_manager.cpp
@@ -43,6 +43,7 @@ void ImageManager::addImage(Immutable<style::Image::Impl> image_) {
     if (requestedImages.find(image_->id) != requestedImages.end()) {
         requestedImagesCacheSize += image_->image.bytes();
     }
+    availableImages.emplace(image_->id);
     images.emplace(image_->id, std::move(image_));
 }
 
@@ -81,6 +82,7 @@ void ImageManager::removeImage(const std::string& id) {
         requestedImages.erase(requestedIt);
     }
     images.erase(it);
+    availableImages.erase(id);
     updatedImageVersions.erase(id);
 }
 
@@ -169,6 +171,10 @@ void ImageManager::reduceMemoryUseIfCacheSizeExceedsLimit() {
     }
 }
 
+const std::set<std::string>& ImageManager::getAvailableImages() const {
+    return availableImages;
+}
+
 void ImageManager::checkMissingAndNotify(ImageRequestor& requestor, const ImageRequestPair& pair) {
     ImageDependencies missingDependencies;