qcam: viewfinder_gl: Merge the semi-planar UV and VU shaders

Use macros to select the U and V pattern, to avoid code duplication
between the two semi-planar shaders.

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

1 files changed, 0 insertions, 32 deletions

diff --git a/src/qcam/assets/shader/YUV_2_planes_VU.frag b/src/qcam/assets/shader/YUV_2_planes_VU.frag
deleted file mode 100644
index f4a5a5ac..00000000
--- a/src/qcam/assets/shader/YUV_2_planes_VU.frag
+++ /dev/null
@@ -1,32 +0,0 @@
-/* SPDX-License-Identifier: LGPL-2.1-or-later */
-/*
- * Copyright (C) 2020, Linaro
- *
- * YUV_2_planes_VU.frag - Fragment shader code for NV21, NV61 and NV42 formats
- */
-
-#ifdef GL_ES
-precision mediump float;
-#endif
-
-varying vec2 textureOut;
-uniform sampler2D tex_y;
-uniform sampler2D tex_u;
-
-void main(void)
-{
-	vec3 yuv;
-	vec3 rgb;
-	mat3 yuv2rgb_bt601_mat = mat3(
-		vec3(1.164,  1.164, 1.164),
-		vec3(0.000, -0.392, 2.017),
-		vec3(1.596, -0.813, 0.000)
-	);
-
-	yuv.x = texture2D(tex_y, textureOut).r - 0.063;
-	yuv.y = texture2D(tex_u, textureOut).g - 0.500;
-	yuv.z = texture2D(tex_u, textureOut).r - 0.500;
-
-	rgb = yuv2rgb_bt601_mat * yuv;
-	gl_FragColor = vec4(rgb, 1.0);
-}