[core] Added StaticRasterVertexBuffer

2 files changed, 26 insertions, 9 deletions

diff --git a/src/mbgl/geometry/static_vertex_buffer.cpp b/src/mbgl/geometry/static_vertex_buffer.cpp
index 254b01b6b6..c66b194748 100644
--- a/src/mbgl/geometry/static_vertex_buffer.cpp
+++ b/src/mbgl/geometry/static_vertex_buffer.cpp
@@ -3,11 +3,21 @@
 
 namespace mbgl {
 
-StaticVertexBuffer::StaticVertexBuffer(std::initializer_list<std::pair<int16_t, int16_t>> init) {
+StaticVertexBuffer::StaticVertexBuffer(std::initializer_list<std::array<VertexType, 2>> init) {
     for (const auto& vertex : init) {
-        vertex_type *vertices = static_cast<vertex_type *>(addElement());
-        vertices[0] = vertex.first;
-        vertices[1] = vertex.second;
+        VertexType* vertices = static_cast<VertexType*>(addElement());
+        vertices[0] = std::get<0>(vertex);
+        vertices[1] = std::get<1>(vertex);
+    }
+}
+
+StaticRasterVertexBuffer::StaticRasterVertexBuffer(std::initializer_list<std::array<VertexType, 4>> init) {
+    for (const auto& vertex : init) {
+        VertexType* vertices = static_cast<VertexType*>(addElement());
+        vertices[0] = std::get<0>(vertex);
+        vertices[1] = std::get<1>(vertex);
+        vertices[2] = std::get<2>(vertex);
+        vertices[3] = std::get<3>(vertex);
     }
 }
 
diff --git a/src/mbgl/geometry/static_vertex_buffer.hpp b/src/mbgl/geometry/static_vertex_buffer.hpp
index 79f6117cbc..2e738afc98 100644
--- a/src/mbgl/geometry/static_vertex_buffer.hpp
+++ b/src/mbgl/geometry/static_vertex_buffer.hpp
@@ -2,10 +2,8 @@
 
 #include <mbgl/geometry/buffer.hpp>
 
-#include <vector>
-#include <cstddef>
+#include <array>
 #include <cstdint>
-#include <cmath>
 
 namespace mbgl {
 
@@ -15,9 +13,18 @@ class StaticVertexBuffer : public Buffer<
     32 // default length
 > {
 public:
-    typedef int16_t vertex_type;
+    using VertexType = int16_t;
+    StaticVertexBuffer(std::initializer_list<std::array<VertexType, 2>>);
+};
 
-    StaticVertexBuffer(std::initializer_list<std::pair<int16_t, int16_t>> init);
+class StaticRasterVertexBuffer : public Buffer<
+    8, // bytes per vertex (4 * signed short == 8 bytes)
+    GL_ARRAY_BUFFER,
+    32 // default length
+> {
+public:
+    using VertexType = int16_t;
+    StaticRasterVertexBuffer(std::initializer_list<std::array<VertexType, 4>>);
 };
 
 } // namespace mbgl