qcam: viewfinder_gl: Rename shader files

Rename shader files to prepare for packed YUYV support:

- The NV prefix isn't a good match for packed (or for 3-planar) formats,
  replace it with a YUV prefix
- Use .frag and .vert extensions to differentiate between fragment and
  vertex shaders

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>

1 files changed, 16 insertions, 0 deletions

diff --git a/src/qcam/assets/shader/YUV.vert b/src/qcam/assets/shader/YUV.vert
new file mode 100644
index 00000000..f38e8045
--- /dev/null
+++ b/src/qcam/assets/shader/YUV.vert
@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+/*
+ * Copyright (C) 2020, Linaro
+ *
+ * YUV.vert - Vertex shader for YUV to RGB conversion
+ */
+
+attribute vec4 vertexIn;
+attribute vec2 textureIn;
+varying vec2 textureOut;
+
+void main(void)
+{
+	gl_Position = vertexIn;
+	textureOut = textureIn;
+}