Add vertex buffer

1 files changed, 50 insertions, 0 deletions

diff --git a/src/graphics/VertexBuffer.cpp b/src/graphics/VertexBuffer.cpp
new file mode 100644
index 0000000..2eb06a8
--- /dev/null
+++ b/src/graphics/VertexBuffer.cpp
@@ -0,0 +1,50 @@
+#include "../../include/mglpp/graphics/VertexBuffer.hpp"
+#include "../../include/mglpp/graphics/Texture.hpp"
+
+extern "C" {
+#include <mgl/mgl.h>
+}
+
+namespace mgl {
+    VertexBuffer::VertexBuffer(PrimitiveType primitive_type, Usage usage) : texture(nullptr), primitive_type(primitive_type), usage(usage) {
+        vertex_buffer.id = 0;
+    }
+
+    VertexBuffer::~VertexBuffer() {
+        mgl_vertex_buffer_deinit(&vertex_buffer);
+    }
+
+    void VertexBuffer::set_position(vec2f position) {
+        mgl_vertex_buffer_set_position(&vertex_buffer, {position.x, position.y});
+    }
+
+    void VertexBuffer::set_color(Color color) {
+        // No-op, because the vertex buffer has colors for each vertex
+        (void)color;
+    }
+
+    vec2f VertexBuffer::get_position() const {
+        return { vertex_buffer.position.x, vertex_buffer.position.y };
+    }
+
+    void VertexBuffer::set_texture(Texture *texture) {
+        this->texture = texture;
+    }
+
+    const Texture* VertexBuffer::get_texture() const {
+        return texture;
+    }
+
+    bool VertexBuffer::update(const Vertex *vertices, size_t vertex_count) {
+        if(vertex_buffer.id == 0) {
+            int res = mgl_vertex_buffer_init(&vertex_buffer, (mgl_primitive_type)primitive_type, (mgl_vertex_buffer_usage)usage);
+            if(res != 0)
+                return false;
+        }
+        return mgl_vertex_buffer_update(&vertex_buffer, (const mgl_vertex*)vertices, vertex_count) == 0;
+    }
+
+    void VertexBuffer::draw(Window&) {
+        mgl_vertex_buffer_draw(mgl_get_context(), &vertex_buffer, texture ? texture->internal_texture() : nullptr);
+    }
+}
\ No newline at end of file