qcam: viewfinder_gl: Store textures in an array

In preparation for RGB formats support, store the three Y, U and V
textures in an array. This makes the code more generic, and will avoid
referring to an RGB texture as textureY_.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Andrey Konovalov <andrey.konovalov@linaro.org>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>

1 files changed, 5 insertions, 4 deletions

diff --git a/src/qcam/viewfinder_gl.h b/src/qcam/viewfinder_gl.h
index b3e36514..150fa4ae 100644
--- a/src/qcam/viewfinder_gl.h
+++ b/src/qcam/viewfinder_gl.h
@@ -8,6 +8,7 @@
 #ifndef __VIEWFINDER_GL_H__
 #define __VIEWFINDER_GL_H__
 
+#include <array>
 #include <memory>
 
 #include <QImage>
@@ -77,14 +78,14 @@ private:
 	/* Vertex buffer */
 	QOpenGLBuffer vertexBuffer_;
 
-	/* YUV texture planars and parameters */
+	/* Textures */
+	std::array<std::unique_ptr<QOpenGLTexture>, 3> textures_;
+
+	/* YUV texture parameters */
 	GLuint textureUniformU_;
 	GLuint textureUniformV_;
 	GLuint textureUniformY_;
 	GLuint textureUniformStepX_;
-	QOpenGLTexture textureU_;
-	QOpenGLTexture textureV_;
-	QOpenGLTexture textureY_;
 	unsigned int horzSubSample_;
 	unsigned int vertSubSample_;