1 files changed, 44 insertions, 0 deletions
diff --git a/src/mbgl/renderer/terrain_bucket.cpp b/src/mbgl/renderer/terrain_bucket.cpp
new file mode 100644
index 000000000..5dc3ddf36
--- /dev/null
+++ b/src/mbgl/renderer/terrain_bucket.cpp
@@ -0,0 +1,44 @@
+#include <mbgl/renderer/terrain_bucket.hpp>
+#include <mbgl/style/layers/terrain_layer.hpp>
+#include <mbgl/shader/terrain_shader.hpp>
+#include <mbgl/shader/terrain_prepare_shader.hpp>
+#include <mbgl/renderer/painter.hpp>
+#include <mbgl/gl/gl.hpp>
+#include <mbgl/gl/context.hpp>
+
+namespace mbgl {
+
+using namespace style;
+
+TerrainBucket::TerrainBucket(PremultipliedImage&&) {
+    // TODO
+}
+
+TerrainBucket::TerrainBucket(DEMPyramid&& pyramid_) : pyramid(std::move(pyramid_)) {
+}
+
+void TerrainBucket::upload(gl::Context& context) {
+    if (!pyramid.levels.empty()) {
+        dem = context.createTexture(pyramid.levels.front().image);
+        for (size_t l = 1; l < pyramid.levels.size(); l++) {
+            auto& image = pyramid.levels[l].image;
+            MBGL_CHECK_ERROR(glTexImage2D(GL_TEXTURE_2D, l, GL_RGBA, image.size.width, image.size.height, 0,
+                                          GL_RGBA, GL_UNSIGNED_BYTE, image.data.get()));
+        }
+    }
+
+    uploaded = true;
+}
+
+void TerrainBucket::render(Painter& painter,
+                           PaintParameters& parameters,
+                           const Layer& layer,
+                           const RenderTile& tile) {
+    painter.renderTerrain(parameters, *this, *layer.as<TerrainLayer>(), tile);
+}
+
+bool TerrainBucket::hasData() const {
+    return true;
+}
+
+} // namespace mbgl