qcam: viewfinder_gl: Set the vertex shader file name in selectFormat()

In preparation to extend the supported formats, make it possible
to use different vertex fragment files depending on the format.
Make "identity.vert" the default choice.

Signed-off-by: Andrey Konovalov <andrey.konovalov@linaro.org>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/src/qcam/viewfinder_gl.h b/src/qcam/viewfinder_gl.h
index 508155b1..bce94c87 100644
--- a/src/qcam/viewfinder_gl.h
+++ b/src/qcam/viewfinder_gl.h
@@ -73,6 +73,7 @@ private:
 	QOpenGLShaderProgram shaderProgram_;
 	std::unique_ptr<QOpenGLShader> vertexShader_;
 	std::unique_ptr<QOpenGLShader> fragmentShader_;
+	QString vertexShaderFile_;
 	QString fragmentShaderFile_;
 	QStringList fragmentShaderDefines_;