1 files changed, 0 insertions, 83 deletions
diff --git a/src/qcam/assets/shader/YUV_packed.frag b/src/qcam/assets/shader/YUV_packed.frag
deleted file mode 100644
index b9ef9d41..00000000
--- a/src/qcam/assets/shader/YUV_packed.frag
+++ /dev/null
@@ -1,83 +0,0 @@
-/* SPDX-License-Identifier: LGPL-2.1-or-later */
-/*
- * Copyright (C) 2020, Laurent Pinchart <laurent.pinchart@ideasonboard.com>
- *
- * YUV_packed.frag - Fragment shader code for YUYV packed formats
- */
-
-#ifdef GL_ES
-precision mediump float;
-#endif
-
-varying vec2 textureOut;
-
-uniform sampler2D tex_y;
-uniform vec2 tex_step;
-
-const mat3 yuv2rgb_matrix = mat3(
-	YUV2RGB_MATRIX
-);
-
-const vec3 yuv2rgb_offset = vec3(
-	YUV2RGB_Y_OFFSET / 255.0, 128.0 / 255.0, 128.0 / 255.0
-);
-
-void main(void)
-{
-	/*
-	 * The sampler won't interpolate the texture correctly along the X axis,
-	 * as each RGBA pixel effectively stores two pixels. We thus need to
-	 * interpolate manually.
-	 *
-	 * In integer texture coordinates, the Y values are layed out in the
-	 * texture memory as follows:
-	 *
-	 * ...| Y  U  Y  V | Y  U  Y  V | Y  U  Y  V |...
-	 * ...| R  G  B  A | R  G  B  A | R  G  B  A |...
-	 *      ^     ^      ^     ^      ^     ^
-	 *      |     |      |     |      |     |
-	 *     n-1  n-0.5    n   n+0.5   n+1  n+1.5
-	 *
-	 * For a texture location x in the interval [n, n+1[, sample the left
-	 * and right pixels at n and n+1, and interpolate them with
-	 *
-	 * left.r * (1 - a) + left.b * a	if fract(x) < 0.5
-	 * left.b * (1 - a) + right.r * a	if fract(x) >= 0.5
-	 *
-	 * with a = fract(x * 2) which can also be written
-	 *
-	 * a = fract(x) * 2			if fract(x) < 0.5
-	 * a = fract(x) * 2 - 1			if fract(x) >= 0.5
-	 */
-	vec2 pos = textureOut;
-	float f_x = fract(pos.x / tex_step.x);
-
-	vec4 left = texture2D(tex_y, vec2(pos.x - f_x * tex_step.x, pos.y));
-	vec4 right = texture2D(tex_y, vec2(pos.x + (1.0 - f_x) * tex_step.x , pos.y));
-
-#if defined(YUV_PATTERN_UYVY)
-	float y_left = mix(left.g, left.a, f_x * 2.0);
-	float y_right = mix(left.a, right.g, f_x * 2.0 - 1.0);
-	vec2 uv = mix(left.rb, right.rb, f_x);
-#elif defined(YUV_PATTERN_VYUY)
-	float y_left = mix(left.g, left.a, f_x * 2.0);
-	float y_right = mix(left.a, right.g, f_x * 2.0 - 1.0);
-	vec2 uv = mix(left.br, right.br, f_x);
-#elif defined(YUV_PATTERN_YUYV)
-	float y_left = mix(left.r, left.b, f_x * 2.0);
-	float y_right = mix(left.b, right.r, f_x * 2.0 - 1.0);
-	vec2 uv = mix(left.ga, right.ga, f_x);
-#elif defined(YUV_PATTERN_YVYU)
-	float y_left = mix(left.r, left.b, f_x * 2.0);
-	float y_right = mix(left.b, right.r, f_x * 2.0 - 1.0);
-	vec2 uv = mix(left.ag, right.ag, f_x);
-#else
-#error Invalid pattern
-#endif
-
-	float y = mix(y_left, y_right, step(0.5, f_x));
-
-	vec3 rgb = yuv2rgb_matrix * (vec3(y, uv) - yuv2rgb_offset);
-
-	gl_FragColor = vec4(rgb, 1.0);
-}