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Diffstat (limited to 'src/qcam/assets/shader/NV_2_planes_UV_f.glsl')
-rw-r--r--src/qcam/assets/shader/NV_2_planes_UV_f.glsl32
1 files changed, 32 insertions, 0 deletions
diff --git a/src/qcam/assets/shader/NV_2_planes_UV_f.glsl b/src/qcam/assets/shader/NV_2_planes_UV_f.glsl
new file mode 100644
index 00000000..67633a11
--- /dev/null
+++ b/src/qcam/assets/shader/NV_2_planes_UV_f.glsl
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+/*
+ * Copyright (C) 2020, Linaro
+ *
+ * NV_2_planes_UV_f.glsl - Fragment shader code for NV12, NV16 and NV24 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).r - 0.500;
+ yuv.z = texture2D(tex_u, textureOut).g - 0.500;
+
+ rgb = yuv2rgb_bt601_mat * yuv;
+ gl_FragColor = vec4(rgb, 1.0);
+}

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