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struct VSOut
{
float4 position : SV_Position;
float2 txcoord: TexCoord;
};
cbuffer globalParams
{
float2 screenSize;
float elapsedTime;
int captureState;
float4 tileUV;
}
cbuffer controlBuf
{
float g_sldASPX;
float g_sldASPY;
}
Texture2D texColor;
SamplerState samLinear;
SamplerState samLinearWrap;
#ifndef NV_COMMON
#define NV_COMMON
#define CAPTURE_STATE_NOT_STARTED 0
#define CAPTURE_STATE_REGULAR 1
#define CAPTURE_STATE_REGULARSTEREO 2
#define CAPTURE_STATE_HIGHRES 3
#define CAPTURE_STATE_360 4
#define CAPTURE_STATE_360STEREO 5
#endif
float4 PSMain( VSOut IN ): SV_Target
{
float4 color = texColor.Sample(samLinear, IN.txcoord.xy);
static const float current_aspect = screenSize.x / screenSize.y;
[branch]
if(captureState != CAPTURE_STATE_360 && captureState != CAPTURE_STATE_360STEREO)
{
float g_sldASP = g_sldASPX / g_sldASPY;
//convert current tile texcoord to global image texcoord
float2 ntxcoord = lerp(tileUV.xy, tileUV.zw, IN.txcoord.xy) * 2.0 - 1.0;
[branch]
if(g_sldASP < current_aspect)
{
ntxcoord.x *= current_aspect / g_sldASP;
}
else
{
ntxcoord.y /= current_aspect / g_sldASP;
}
color.rgb *= all(saturate(1.0 - ntxcoord * ntxcoord));
}
return color;
}