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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "common-vs.hlsl"
#include "clear-common.hlsl"
struct VS_CLEAR_IN
{
float2 vPos : POSITION;
int4 vRect : TEXCOORD0;
};
// Note: we use slot 2 so we don't have to rebind the layer slot (1) to run
// this shader.
cbuffer ClearConstants : register(b2) {
int sDepth : packoffset(c0.x);
};
VS_CLEAR_OUT ClearVS(const VS_CLEAR_IN aInput)
{
float4 rect = float4(aInput.vRect.x, aInput.vRect.y, aInput.vRect.z, aInput.vRect.w);
float4 screenPos = float4(UnitQuadToRect(aInput.vPos, rect), 0, 1);
float4 worldPos = mul(WorldTransform, screenPos);
worldPos.z = ComputeDepth(worldPos, sDepth);
VS_CLEAR_OUT output;
output.vPosition = worldPos;
return output;
}
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