[core] Split style image collection from SpriteAtlas

4 files changed, 229 insertions, 207 deletions

diff --git a/test/sprite/sprite_atlas.test.cpp b/test/sprite/sprite_atlas.test.cpp
index 08388f0a93..0cbd211de8 100644
--- a/test/sprite/sprite_atlas.test.cpp
+++ b/test/sprite/sprite_atlas.test.cpp
@@ -4,7 +4,6 @@
 #include <mbgl/test/stub_style_observer.hpp>
 
 #include <mbgl/sprite/sprite_atlas.hpp>
-#include <mbgl/sprite/sprite_atlas.hpp>
 #include <mbgl/sprite/sprite_parser.hpp>
 #include <mbgl/util/io.hpp>
 #include <mbgl/util/image.hpp>
@@ -185,189 +184,3 @@ TEST(SpriteAtlas, RemoveReleasesBinPackRect) {
     EXPECT_TRUE(atlas.getIcon("big"));
     EXPECT_TRUE(log.empty());
 }
-
-TEST(SpriteAtlas, OtherPixelRatio) {
-    FixtureLog log;
-    SpriteAtlas atlas({ 32, 32 }, 1);
-
-    // Adding mismatched sprite image
-    atlas.addImage("one", std::make_unique<style::Image>(PremultipliedImage({ 8, 8 }), 2));
-}
-
-TEST(SpriteAtlas, Replace) {
-    FixtureLog log;
-    SpriteAtlas atlas({ 32, 32 }, 1);
-
-    atlas.addImage("sprite", std::make_unique<style::Image>(PremultipliedImage({ 16, 16 }), 2));
-    auto image = atlas.getImage("sprite");
-    atlas.addImage("sprite", std::make_unique<style::Image>(PremultipliedImage({ 16, 16 }), 2));
-    EXPECT_NE(image, atlas.getImage("sprite"));
-}
-
-TEST(SpriteAtlas, ReplaceWithDifferentDimensions) {
-    FixtureLog log;
-    SpriteAtlas atlas({ 32, 32 }, 1);
-
-    atlas.addImage("sprite", std::make_unique<style::Image>(PremultipliedImage({ 16, 16 }), 2));
-    atlas.addImage("sprite", std::make_unique<style::Image>(PremultipliedImage({ 18, 18 }), 2));
-
-    EXPECT_EQ(1u, log.count({
-                      EventSeverity::Warning,
-                      Event::Sprite,
-                      int64_t(-1),
-                      "Can't change sprite dimensions for 'sprite'",
-                  }));
-}
-
-class SpriteAtlasTest {
-public:
-    SpriteAtlasTest() = default;
-
-    util::RunLoop loop;
-    StubFileSource fileSource;
-    StubStyleObserver observer;
-    ThreadPool threadPool { 1 };
-    SpriteAtlas spriteAtlas{ { 32, 32 }, 1 };
-
-    void run() {
-        // Squelch logging.
-        Log::setObserver(std::make_unique<Log::NullObserver>());
-
-        spriteAtlas.setObserver(&observer);
-        spriteAtlas.load("test/fixtures/resources/sprite", threadPool, fileSource);
-
-        loop.run();
-    }
-
-    void end() {
-        loop.stop();
-    }
-};
-
-Response successfulSpriteImageResponse(const Resource& resource) {
-    EXPECT_EQ("test/fixtures/resources/sprite.png", resource.url);
-    Response response;
-    response.data = std::make_unique<std::string>(util::read_file(resource.url));
-    return response;
-}
-
-Response successfulSpriteJSONResponse(const Resource& resource) {
-    EXPECT_EQ("test/fixtures/resources/sprite.json", resource.url);
-    Response response;
-    response.data = std::make_unique<std::string>(util::read_file(resource.url));
-    return response;
-}
-
-Response failedSpriteResponse(const Resource&) {
-    Response response;
-    response.error = std::make_unique<Response::Error>(
-        Response::Error::Reason::Other,
-        "Failed by the test case");
-    return response;
-}
-
-Response corruptSpriteResponse(const Resource&) {
-    Response response;
-    response.data = std::make_unique<std::string>("CORRUPT");
-    return response;
-}
-
-TEST(SpriteAtlas, LoadingSuccess) {
-    SpriteAtlasTest test;
-
-    test.fileSource.spriteImageResponse = successfulSpriteImageResponse;
-    test.fileSource.spriteJSONResponse = successfulSpriteJSONResponse;
-
-    test.observer.spriteError = [&] (std::exception_ptr error) {
-        FAIL() << util::toString(error);
-        test.end();
-    };
-
-    test.observer.spriteLoaded = [&] () {
-        EXPECT_EQ(1.0, test.spriteAtlas.getPixelRatio());
-        EXPECT_TRUE(test.spriteAtlas.isLoaded());
-        test.end();
-    };
-
-    test.run();
-}
-
-TEST(SpriteAtlas, JSONLoadingFail) {
-    SpriteAtlasTest test;
-
-    test.fileSource.spriteImageResponse = successfulSpriteImageResponse;
-    test.fileSource.spriteJSONResponse = failedSpriteResponse;
-
-    test.observer.spriteError = [&] (std::exception_ptr error) {
-        EXPECT_TRUE(error != nullptr);
-        EXPECT_EQ("Failed by the test case", util::toString(error));
-        EXPECT_FALSE(test.spriteAtlas.isLoaded());
-        test.end();
-    };
-
-    test.run();
-}
-
-TEST(SpriteAtlas, ImageLoadingFail) {
-    SpriteAtlasTest test;
-
-    test.fileSource.spriteImageResponse = failedSpriteResponse;
-    test.fileSource.spriteJSONResponse = successfulSpriteJSONResponse;
-
-    test.observer.spriteError = [&] (std::exception_ptr error) {
-        EXPECT_TRUE(error != nullptr);
-        EXPECT_EQ("Failed by the test case", util::toString(error));
-        EXPECT_FALSE(test.spriteAtlas.isLoaded());
-        test.end();
-    };
-
-    test.run();
-}
-
-TEST(SpriteAtlas, JSONLoadingCorrupted) {
-    SpriteAtlasTest test;
-
-    test.fileSource.spriteImageResponse = successfulSpriteImageResponse;
-    test.fileSource.spriteJSONResponse = corruptSpriteResponse;
-
-    test.observer.spriteError = [&] (std::exception_ptr error) {
-        EXPECT_TRUE(error != nullptr);
-        EXPECT_EQ("Failed to parse JSON: Invalid value. at offset 0", util::toString(error));
-        EXPECT_FALSE(test.spriteAtlas.isLoaded());
-        test.end();
-    };
-
-    test.run();
-}
-
-TEST(SpriteAtlas, ImageLoadingCorrupted) {
-    SpriteAtlasTest test;
-
-    test.fileSource.spriteImageResponse = corruptSpriteResponse;
-    test.fileSource.spriteJSONResponse = successfulSpriteJSONResponse;
-
-    test.observer.spriteError = [&] (std::exception_ptr error) {
-        EXPECT_TRUE(error != nullptr);
-        // Not asserting on platform-specific error text.
-        EXPECT_FALSE(test.spriteAtlas.isLoaded());
-        test.end();
-    };
-
-    test.run();
-}
-
-TEST(SpriteAtlas, LoadingCancel) {
-    SpriteAtlasTest test;
-
-    test.fileSource.spriteImageResponse =
-    test.fileSource.spriteJSONResponse = [&] (const Resource&) {
-        test.end();
-        return optional<Response>();
-    };
-
-    test.observer.spriteLoaded = [&] () {
-        FAIL() << "Should never be called";
-    };
-
-    test.run();
-}
diff --git a/test/sprite/sprite_image_collection.test.cpp b/test/sprite/sprite_image_collection.test.cpp
new file mode 100644
index 0000000000..51ea20fdf3
--- /dev/null
+++ b/test/sprite/sprite_image_collection.test.cpp
@@ -0,0 +1,45 @@
+#include <mbgl/test/util.hpp>
+#include <mbgl/test/fixture_log_observer.hpp>
+
+#include <mbgl/sprite/sprite_image_collection.hpp>
+#include <mbgl/util/image.hpp>
+#include <mbgl/util/string.hpp>
+
+#include <utility>
+
+using namespace mbgl;
+
+TEST(SpriteImageCollection, OtherPixelRatio) {
+    FixtureLog log;
+    Images images;
+
+    // Adding mismatched sprite image
+    addSpriteImage(images, "one", std::make_unique<style::Image>(PremultipliedImage({ 8, 8 }), 2));
+}
+
+TEST(SpriteImageCollection, Replace) {
+    FixtureLog log;
+    Images images;
+
+    addSpriteImage(images, "sprite", std::make_unique<style::Image>(PremultipliedImage({ 16, 16 }), 2));
+    auto image = images.find("sprite")->second.get();
+    addSpriteImage(images, "sprite", std::make_unique<style::Image>(PremultipliedImage({ 16, 16 }), 2));
+    EXPECT_NE(image, images.find("sprite")->second.get());
+}
+
+TEST(SpriteImageCollection, ReplaceWithDifferentDimensions) {
+    FixtureLog log;
+    Images images;
+
+    addSpriteImage(images, "sprite", std::make_unique<style::Image>(PremultipliedImage({ 16, 16 }), 2));
+    addSpriteImage(images, "sprite", std::make_unique<style::Image>(PremultipliedImage({ 18, 18 }), 2));
+
+    EXPECT_EQ(1u, log.count({
+                                    EventSeverity::Warning,
+                                    Event::Sprite,
+                                    int64_t(-1),
+                                    "Can't change sprite dimensions for 'sprite'",
+                            }));
+}
+
+
diff --git a/test/sprite/sprite_loader.test.cpp b/test/sprite/sprite_loader.test.cpp
new file mode 100644
index 0000000000..06018cc390
--- /dev/null
+++ b/test/sprite/sprite_loader.test.cpp
@@ -0,0 +1,164 @@
+#include <mbgl/test/util.hpp>
+#include <mbgl/test/fixture_log_observer.hpp>
+#include <mbgl/test/stub_file_source.hpp>
+#include <mbgl/test/stub_style_observer.hpp>
+
+#include <mbgl/sprite/sprite_loader.hpp>
+#include <mbgl/sprite/sprite_parser.hpp>
+#include <mbgl/util/io.hpp>
+#include <mbgl/util/image.hpp>
+#include <mbgl/util/run_loop.hpp>
+#include <mbgl/util/default_thread_pool.hpp>
+#include <mbgl/util/string.hpp>
+
+#include <utility>
+
+using namespace mbgl;
+
+class SpriteLoaderTest {
+public:
+    SpriteLoaderTest() = default;
+
+    util::RunLoop loop;
+    StubFileSource fileSource;
+    StubStyleObserver observer;
+    ThreadPool threadPool { 1 };
+    SpriteLoader spriteLoader{ 1 };
+
+    void run() {
+        // Squelch logging.
+        Log::setObserver(std::make_unique<Log::NullObserver>());
+
+        spriteLoader.setObserver(&observer);
+        spriteLoader.load("test/fixtures/resources/sprite", threadPool, fileSource);
+
+        loop.run();
+    }
+
+    void end() {
+        loop.stop();
+    }
+};
+
+Response successfulSpriteImageResponse(const Resource& resource) {
+    EXPECT_EQ("test/fixtures/resources/sprite.png", resource.url);
+    Response response;
+    response.data = std::make_unique<std::string>(util::read_file(resource.url));
+    return response;
+}
+
+Response successfulSpriteJSONResponse(const Resource& resource) {
+    EXPECT_EQ("test/fixtures/resources/sprite.json", resource.url);
+    Response response;
+    response.data = std::make_unique<std::string>(util::read_file(resource.url));
+    return response;
+}
+
+Response failedSpriteResponse(const Resource&) {
+    Response response;
+    response.error = std::make_unique<Response::Error>(
+        Response::Error::Reason::Other,
+        "Failed by the test case");
+    return response;
+}
+
+Response corruptSpriteResponse(const Resource&) {
+    Response response;
+    response.data = std::make_unique<std::string>("CORRUPT");
+    return response;
+}
+
+TEST(SpriteLoader, LoadingSuccess) {
+    SpriteLoaderTest test;
+
+    test.fileSource.spriteImageResponse = successfulSpriteImageResponse;
+    test.fileSource.spriteJSONResponse = successfulSpriteJSONResponse;
+
+    test.observer.spriteError = [&] (std::exception_ptr error) {
+        FAIL() << util::toString(error);
+        test.end();
+    };
+
+    test.observer.spriteLoaded = [&] (SpriteLoaderObserver::Images&& images) {
+        EXPECT_EQ(images.size(), Images::size_type(367));
+        test.end();
+    };
+
+    test.run();
+}
+
+TEST(SpriteLoader, JSONLoadingFail) {
+    SpriteLoaderTest test;
+
+    test.fileSource.spriteImageResponse = successfulSpriteImageResponse;
+    test.fileSource.spriteJSONResponse = failedSpriteResponse;
+
+    test.observer.spriteError = [&] (std::exception_ptr error) {
+        EXPECT_TRUE(error != nullptr);
+        EXPECT_EQ("Failed by the test case", util::toString(error));
+        test.end();
+    };
+
+    test.run();
+}
+
+TEST(SpriteLoader, ImageLoadingFail) {
+    SpriteLoaderTest test;
+
+    test.fileSource.spriteImageResponse = failedSpriteResponse;
+    test.fileSource.spriteJSONResponse = successfulSpriteJSONResponse;
+
+    test.observer.spriteError = [&] (std::exception_ptr error) {
+        EXPECT_TRUE(error != nullptr);
+        EXPECT_EQ("Failed by the test case", util::toString(error));
+        test.end();
+    };
+
+    test.run();
+}
+
+TEST(SpriteLoader, JSONLoadingCorrupted) {
+    SpriteLoaderTest test;
+
+    test.fileSource.spriteImageResponse = successfulSpriteImageResponse;
+    test.fileSource.spriteJSONResponse = corruptSpriteResponse;
+
+    test.observer.spriteError = [&] (std::exception_ptr error) {
+        EXPECT_TRUE(error != nullptr);
+        EXPECT_EQ("Failed to parse JSON: Invalid value. at offset 0", util::toString(error));
+        test.end();
+    };
+
+    test.run();
+}
+
+TEST(SpriteLoader, ImageLoadingCorrupted) {
+    SpriteLoaderTest test;
+
+    test.fileSource.spriteImageResponse = corruptSpriteResponse;
+    test.fileSource.spriteJSONResponse = successfulSpriteJSONResponse;
+
+    test.observer.spriteError = [&] (std::exception_ptr error) {
+        EXPECT_TRUE(error != nullptr);
+        // Not asserting on platform-specific error text.
+        test.end();
+    };
+
+    test.run();
+}
+
+TEST(SpriteLoader, LoadingCancel) {
+    SpriteLoaderTest test;
+
+    test.fileSource.spriteImageResponse =
+    test.fileSource.spriteJSONResponse = [&] (const Resource&) {
+        test.end();
+        return optional<Response>();
+    };
+
+    test.observer.spriteLoaded = [&] (const SpriteLoaderObserver::Images&) {
+        FAIL() << "Should never be called";
+    };
+
+    test.run();
+}
diff --git a/test/sprite/sprite_parser.test.cpp b/test/sprite/sprite_parser.test.cpp
index bb8e71db95..19c6b914a8 100644
--- a/test/sprite/sprite_parser.test.cpp
+++ b/test/sprite/sprite_parser.test.cpp
@@ -145,11 +145,11 @@ TEST(Sprite, SpriteImageCreation1x) {
         ASSERT_TRUE(sprite.get());
         EXPECT_EQ(18, sprite->getWidth());
         EXPECT_EQ(18, sprite->getHeight());
-        EXPECT_EQ(18u, sprite->image.size.width);
-        EXPECT_EQ(18u, sprite->image.size.height);
-        EXPECT_EQ(1, sprite->pixelRatio);
+        EXPECT_EQ(18u, sprite->getImage().size.width);
+        EXPECT_EQ(18u, sprite->getImage().size.height);
+        EXPECT_EQ(1, sprite->getPixelRatio());
         EXPECT_EQ(readImage("test/fixtures/annotations/result-spriteimagecreation1x-museum.png"),
-                  sprite->image);
+                  sprite->getImage());
     }
 }
 
@@ -161,11 +161,11 @@ TEST(Sprite, SpriteImageCreation2x) {
     ASSERT_TRUE(sprite.get());
     EXPECT_EQ(18, sprite->getWidth());
     EXPECT_EQ(18, sprite->getHeight());
-    EXPECT_EQ(36u, sprite->image.size.width);
-    EXPECT_EQ(36u, sprite->image.size.height);
-    EXPECT_EQ(2, sprite->pixelRatio);
+    EXPECT_EQ(36u, sprite->getImage().size.width);
+    EXPECT_EQ(36u, sprite->getImage().size.height);
+    EXPECT_EQ(2, sprite->getPixelRatio());
     EXPECT_EQ(readImage("test/fixtures/annotations/result-spriteimagecreation2x.png"),
-              sprite->image);
+              sprite->getImage());
 }
 
 TEST(Sprite, SpriteImageCreation1_5x) {
@@ -176,22 +176,22 @@ TEST(Sprite, SpriteImageCreation1_5x) {
     ASSERT_TRUE(sprite.get());
     EXPECT_EQ(24, sprite->getWidth());
     EXPECT_EQ(24, sprite->getHeight());
-    EXPECT_EQ(36u, sprite->image.size.width);
-    EXPECT_EQ(36u, sprite->image.size.height);
-    EXPECT_EQ(1.5, sprite->pixelRatio);
+    EXPECT_EQ(36u, sprite->getImage().size.width);
+    EXPECT_EQ(36u, sprite->getImage().size.height);
+    EXPECT_EQ(1.5, sprite->getPixelRatio());
     EXPECT_EQ(readImage("test/fixtures/annotations/result-spriteimagecreation1_5x-museum.png"),
-              sprite->image);
+              sprite->getImage());
 
     // "hospital_icon":{"x":314,"y":518,"width":36,"height":36,"pixelRatio":2,"sdf":false}
     const auto sprite2 = createStyleImage(image_2x, 314, 518, 35, 35, 1.5, false);
     ASSERT_TRUE(sprite2.get());
     EXPECT_EQ(float(35 / 1.5), sprite2->getWidth());
     EXPECT_EQ(float(35 / 1.5), sprite2->getHeight());
-    EXPECT_EQ(35u, sprite2->image.size.width);
-    EXPECT_EQ(35u, sprite2->image.size.height);
-    EXPECT_EQ(1.5, sprite2->pixelRatio);
+    EXPECT_EQ(35u, sprite2->getImage().size.width);
+    EXPECT_EQ(35u, sprite2->getImage().size.height);
+    EXPECT_EQ(1.5, sprite2->getPixelRatio());
     EXPECT_EQ(readImage("test/fixtures/annotations/result-spriteimagecreation1_5x-hospital.png"),
-              sprite2->image);
+              sprite2->getImage());
 }
 
 TEST(Sprite, SpriteParsing) {
@@ -283,10 +283,10 @@ TEST(Sprite, SpriteParsing) {
         auto& sprite = images.find("generic-metro")->second;
         EXPECT_EQ(18, sprite->getWidth());
         EXPECT_EQ(18, sprite->getHeight());
-        EXPECT_EQ(18u, sprite->image.size.width);
-        EXPECT_EQ(18u, sprite->image.size.height);
-        EXPECT_EQ(1, sprite->pixelRatio);
-        EXPECT_EQ(readImage("test/fixtures/annotations/result-spriteparsing.png"), sprite->image);
+        EXPECT_EQ(18u, sprite->getImage().size.width);
+        EXPECT_EQ(18u, sprite->getImage().size.height);
+        EXPECT_EQ(1, sprite->getPixelRatio());
+        EXPECT_EQ(readImage("test/fixtures/annotations/result-spriteparsing.png"), sprite->getImage());
     }
 }