Color.

src/display/mesh/Mesh.cpp

@@ -0,0 +1,73 @@
+// Copyright (c) 2025 Dominic Masters
+// 
+// This software is released under the MIT License.
+// https://opensource.org/licenses/MIT
+
+#include "Mesh.hpp"
+#include "assert/Assert.hpp"
+
+using namespace Dawn;
+
+Mesh::Mesh(
+  const int32_t vertexCount,
+  const PrimitiveType primitiveType,
+  const MeshVertex *vertices
+) :
+  vertexCount(vertexCount),
+  primitiveType(primitiveType),
+  vertices(vertices)
+{
+
+}
+
+void Mesh::draw(
+  int32_t vertexOffset,
+  int32_t vertexCount
+) const {
+  const int32_t offset = vertexOffset == -1 ? 0 : vertexOffset;
+  const int32_t count = vertexCount == -1 ? this->vertexCount : vertexCount;
+
+  assertNotNull(this->vertices, "Mesh cannot be NULL");
+  assertTrue(offset >= 0, "Vertex offset must be non-negative");
+  assertTrue(count >= 0, "Vertex count must be non-negative");
+  assertTrue(
+    offset + count <= this->vertexCount, 
+    "Vertex offset + count must not exceed vertex count"
+  );
+
+  #if DISPLAY_SDL2
+    // PSP style pointer legacy OpenGL
+    const GLsizei stride = sizeof(MeshVertex);
+
+    glColorPointer(
+      MESH_VERTEX_COLOR_SIZE,
+      GL_UNSIGNED_BYTE,
+      stride,
+      (const GLvoid*)&this->vertices[offset].color[0]
+    );
+
+    glTexCoordPointer(
+      MESH_VERTEX_UV_SIZE,
+      GL_FLOAT,
+      stride,
+      (const GLvoid*)&this->vertices[offset].uv[0]
+    );
+
+    glVertexPointer(
+      MESH_VERTEX_POS_SIZE,
+      GL_FLOAT,
+      stride,
+      (const GLvoid*)&this->vertices[offset].pos[0]
+    );
+    
+    glDrawArrays(
+      this->primitiveType,
+      0,
+      count
+    );
+  #endif
+}
+
+Mesh::~Mesh() {
+
+}