#include "bindless_structs.hlsli"

struct FS_Input
{
    float4 inPosition : POSITION;
    float4 inColor : COLOR0;
    float2 inUV : TEXCOORD0;
};

struct FS_Output
{
    float4 outColor : SV_Target0;
};

float4 ArrayToVector(float arr[4])
{
    return float4(arr[0], arr[1], arr[2], arr[3]);
}

float4 ArrayToVector(float4 arr)
{
    return arr;
}

float4 GetAlbedo(uint materialBufferId, int materialId, float2 uv)
{
    uint albedoTexId = materialsBuffer[materialBufferId][materialId].m_AlbedoTex;
    if (albedoTexId == INVALID_HANDLE)
    {
        return (float4) materialsBuffer[materialBufferId][materialId].m_AlbedoFactor;
    }
    else
    {
        return textures[albedoTexId].Sample(immutableSamplers[albedoTexId], uv);
    }
}

FS_Output main(FS_Input stage_input)
{
    FS_Output output;
    output.outColor = pcb.m_MaterialIdx < 0 ? stage_input.inColor : GetAlbedo(pcb.materialBufferHandle, pcb.m_MaterialIdx, stage_input.inUV);
    return output;
}