pve, pygl

pve/mesh.py

@@ -0,0 +1,61 @@
+# People's Video Editor: high quality, GPU accelerated mp4 editor
+# Copyright (C) 2025 Roz K <roz@rozk.net>
+#
+# This file is part of People's Video Editor.
+#
+# People's Video Editor is free software: you can redistribute it and/or modify it under the terms of the
+# GNU General Public License as published by the Free Software Foundation, either version 3 of the License,
+# or (at your option) any later version.
+#
+# People's Video Editor is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+# without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along with People's Video Editor.
+# If not, see <https://www.gnu.org/licenses/>.
+
+#TODO: split channels
+
+from shape import Vertex, Shape
+
+from array import array
+
+class Mesh:
+    __slots__ = '_array', '_view', '_size'
+
+    def __init__(self, shape):
+        #TODO: cpp
+        if shape.cutouts:
+            raise NotImplementedError
+        if shape.size > 4:
+            raise NotImplementedError
+
+        self._array = array(Vertex.Type, 2 * 3 * Vertex.Channels)
+        self._view = memoryview(self._array)
+        self._size = self.view.nbytes
+        tl = shape[0]
+        tr = shape[1]
+        br = shape[2]
+        bl = shape[3]
+        self.set(0, 0, tl)
+        self.set(0, 1, tr)
+        self.set(0, 2, br)
+        self.set(1, 0, br)
+        self.set(1, 1, bl)
+        self.set(1, 2, tl)
+
+    def __del__(self):
+        del self._view
+        del self._array
+
+    def set(self, triangle, index, vertex):
+        index = (triangle * 3 + index) * Vertex.Channels
+        self._view[index:(index + Vertex.Channels)] = vertex
+
+    @property
+    def size(self):
+        return self._size
+
+    @property
+    def view(self):
+        return self._view