AVProWindowsMedia_YUV_NV12_709.shader
1.76 KB
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Shader "Hidden/AVProWindowsMedia/CompositeNV12_709"
{
Properties
{
_MainTex ("Luma (Y)", 2D) = "white" {}
_MainUV ("Color (UV)", 2D) = "white" {}
_TextureWidth ("Texure Width", Float) = 256.0
}
SubShader
{
Pass
{
ZTest Always Cull Off ZWrite Off
Fog { Mode off }
CGPROGRAM
#pragma vertex vert
#pragma fragment frag
#pragma fragmentoption ARB_precision_hint_fastest
#pragma multi_compile SWAP_RED_BLUE_ON SWAP_RED_BLUE_OFF
#include "AVProWindowsMedia_Shared.cginc"
#include "UnityCG.cginc"
uniform sampler2D _MainTex;
uniform sampler2D _MainUV;
float _TextureWidth;
#if UNITY_VERSION >= 530
uniform float4 _MainTex_ST2;
#else
uniform float4 _MainTex_ST;
#endif
float4 _MainTex_TexelSize;
struct v2f {
float4 pos : POSITION;
float2 uv : TEXCOORD0;
};
v2f vert( appdata_img v )
{
v2f o;
o.pos = mul (UNITY_MATRIX_MVP, v.vertex);
#if UNITY_VERSION >= 530
o.uv.xy = (v.texcoord.xy * _MainTex_ST2.xy + _MainTex_ST2.zw);
#else
o.uv.xy = TRANSFORM_TEX(v.texcoord, _MainTex);
#endif
// On D3D when AA is used, the main texture & scene depth texture
// will come out in different vertical orientations.
// So flip sampling of the texture when that is the case (main texture
// texel size will have negative Y).
#if SHADER_API_D3D9
if (_MainTex_TexelSize.y < 0)
{
o.uv.y = 1-o.uv.y;
}
#endif
return o;
}
float4 frag (v2f i) : COLOR
{
float yy = i.uv.y * 0.666666;
float2 uv = float2(i.uv.x, yy);
float4 col = tex2D(_MainTex, uv.xy);
float f = (uv.x * _TextureWidth) / 1.0;
float fr = frac(f);
float y = col.r;
if (fr >= 0.25)
y = col.g;
if (fr >= 0.5)
y = col.b;
if (fr >= 0.75)
y = col.a;
//uv = float2(i.uv.x, 0.66666 + yy * 0.5);//0.666666 + i.uv.y*0.666666);
col = tex2D(_MainTex, uv);
return col;
}
ENDCG
}
}
FallBack Off
}