#version 140
#pragma optionNV(fastmath on)
#pragma optionNV(ifcvt none)
#pragma optionNV(inline all)
#pragma optionNV(strict on)
#pragma optionNV(unroll all)
in vec4 POSITION;
in vec2 TEXCOORD0;
in vec2 TEXCOORD1;
in vec2 TEXCOORD2;
in vec2 TEXCOORD3;
out vec2 frag_TEXCOORD0;
out vec2 frag_TEXCOORD1;
out vec2 frag_TEXCOORD2;
out vec2 frag_TEXCOORD3;

//
// Structure definitions
//

struct VS_OUTPUT {
    vec4 position;
    vec2 uvr;
    vec2 uvg;
    vec2 uvb;
    vec2 uvn;
};


//
// Global variable definitions
//

layout (std140) uniform cBuffer {
	mat4 reproj;
	mat4 proj;
	mat4 invProj;
	vec4 colorMask;
	float vignette;
	float blackLevel;
	float gamma;
};

//
// Function declarations
//

VS_OUTPUT VS_REPROJECT( in vec4 position, in vec2 uvr, in vec2 uvg, in vec2 uvb, in vec2 uvn );
vec2 Reproject( in vec2 uv );

//
// Function definitions
//

VS_OUTPUT VS_REPROJECT( in vec4 position, in vec2 uvr, in vec2 uvg, in vec2 uvb, in vec2 uvn ) {
    VS_OUTPUT o;

    o.position = position;
    o.uvr = Reproject( uvr);
    o.uvg = Reproject( uvg);
    o.uvb = Reproject( uvb);
    o.uvn = Reproject( uvn);
    return o;
}


vec2 Reproject( in vec2 uv ) {
    vec4 ndc;

    ndc = vec4( ((2.00000 * uv.x ) - 1.00000), ((2.00000 * uv.y ) - 1.00000), 0.000000, 1.00000);
    ndc = ( invProj * ndc );
    ndc /= ndc.w ;
    ndc = ( reproj * ndc );
    ndc = ( proj * ndc );
    ndc /= ndc.w ;
    return ((ndc.xy  * 0.500000) + 0.500000);
}


//
// User varying
//
out vec4 xlat_varying_SV_POSITION;

//
// Translator's entry point
//
void main() {
    VS_OUTPUT xlat_retVal;

    xlat_retVal = VS_REPROJECT( POSITION, TEXCOORD0, TEXCOORD1, TEXCOORD2, TEXCOORD3);

    xlat_varying_SV_POSITION = xlat_retVal.position;
    frag_TEXCOORD0 = xlat_retVal.uvr;
    frag_TEXCOORD1 = xlat_retVal.uvg;
    frag_TEXCOORD2 = xlat_retVal.uvb;
    frag_TEXCOORD3 = xlat_retVal.uvn;
    gl_Position = xlat_varying_SV_POSITION;
}


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