feat: start of a basic rendering backend

1 files changed, 34 insertions, 0 deletions

diff --git a/src/platform/opengl/opengl_vertex_buffer.cpp b/src/platform/opengl/opengl_vertex_buffer.cpp
new file mode 100644
index 0000000..76b620a
--- /dev/null
+++ b/src/platform/opengl/opengl_vertex_buffer.cpp
@@ -0,0 +1,34 @@
+#include "opengl_vertex_buffer.h"
+#include "rendering/vertex_buffer.h"
+#include <glad/glad.h>
+
+namespace Donut 
+{
+    OpenGLVertexBuffer::OpenGLVertexBuffer(const void* data, uint32_t size)
+    {
+        glCreateBuffers(1, &m_renderer_id);
+        glBindBuffer(GL_ARRAY_BUFFER, m_renderer_id);
+        glBufferData(GL_ARRAY_BUFFER, size, data, GL_STATIC_DRAW);
+    }
+
+    OpenGLVertexBuffer::~OpenGLVertexBuffer()
+    {
+        glDeleteBuffers(1, &m_renderer_id);
+    }
+
+    void OpenGLVertexBuffer::bind() const
+    {
+        glBindBuffer(GL_ARRAY_BUFFER, m_renderer_id);
+    }
+
+    void OpenGLVertexBuffer::unbind() const
+    {
+        glBindBuffer(GL_ARRAY_BUFFER, 0);
+    }
+
+    void OpenGLVertexBuffer::set_data(const void* data, uint32_t size)
+    {
+        glBindBuffer(GL_ARRAY_BUFFER, m_renderer_id);
+        glBufferSubData(GL_ARRAY_BUFFER, 0, size, data);
+    }
+};