--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/mesh.c Fri Apr 18 20:13:01 2025 +0200
@@ -0,0 +1,65 @@
+/*
+* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ * Copyright 2025 Mike Becker. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "ascension/mesh.h"
+#include "ascension/error.h"
+
+#include <GL/glew.h>
+
+void asc_mesh_allocate_buffers(AscMesh *mesh, unsigned count) {
+ asc_dprintf("Allocate mesh buffers for %u meshes.", count);
+ GLuint buffers[count];
+ GLuint arrays[count];
+ glGenBuffers(count, buffers);
+ glGenVertexArrays(count, arrays);
+ for (unsigned i = 0; i < count; i++) {
+ mesh[i].vbo = buffers[i];
+ mesh[i].vao = arrays[i];
+ }
+ asc_error_catch_all_gl();
+}
+
+void asc_mesh_free_buffers(AscMesh *mesh, unsigned count) {
+ asc_dprintf("Free mesh buffers for %u meshes.", count);
+ if (count > 32) {
+ asc_error("Trying to free more than 32 mesh buffers at once.");
+ count = 32;
+ }
+ GLuint buffers[count];
+ GLuint arrays[count];
+
+ for (unsigned i = 0; i < count; i++) {
+ buffers[i] = mesh[i].vbo;
+ arrays[i] = mesh[i].vao;
+ mesh[i].vbo = 0;
+ mesh[i].vao = 0;
+ }
+
+ glDeleteBuffers(count, buffers);
+ glDeleteVertexArrays(count, arrays);
+ asc_error_catch_all_gl();
+}
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