NewN_UAVPlane/Assets/3rdParty/AVProVideo/Scripts/Components/ApplyToMaterial.cs

275 lines
7.3 KiB
C#

#if UNITY_EDITOR || UNITY_STANDALONE_OSX || UNITY_STANDALONE_WIN
#define UNITY_PLATFORM_SUPPORTS_LINEAR
#elif UNITY_IOS || UNITY_ANDROID
#if UNITY_5_5_OR_NEWER || (UNITY_5 && !UNITY_5_0 && !UNITY_5_1 && !UNITY_5_2 && !UNITY_5_3 && !UNITY_5_4)
#define UNITY_PLATFORM_SUPPORTS_LINEAR
#endif
#endif
#if UNITY_5_4_OR_NEWER || (UNITY_5 && !UNITY_5_0)
#define UNITY_HELPATTRIB
#endif
using UnityEngine;
//-----------------------------------------------------------------------------
// Copyright 2015-2018 RenderHeads Ltd. All rights reserverd.
//-----------------------------------------------------------------------------
namespace RenderHeads.Media.AVProVideo
{
/// <summary>
/// Sets up a material to display the video from a MediaPlayer
/// </summary>
[AddComponentMenu("AVPro Video/Apply To Material", 300)]
#if UNITY_HELPATTRIB
[HelpURL("http://renderheads.com/product/avpro-video/")]
#endif
public class ApplyToMaterial : MonoBehaviour
{
public Vector2 _offset = Vector2.zero;
public Vector2 _scale = Vector2.one;
public Material _material;
public string _texturePropertyName;
public MediaPlayer _media;
public Texture2D _defaultTexture;
private Texture _originalTexture;
private Vector2 _originalScale = Vector2.one;
private Vector2 _originalOffset = Vector2.zero;
private static int _propStereo;
private static int _propAlphaPack;
private static int _propApplyGamma;
private static int _propLayout;
private const string PropChromaTexName = "_ChromaTex";
private static int _propChromaTex;
private const string PropUseYpCbCrName = "_UseYpCbCr";
private static int _propUseYpCbCr;
private void Awake()
{
if (_propStereo == 0)
{
_propStereo = Shader.PropertyToID("Stereo");
}
if (_propAlphaPack == 0)
{
_propAlphaPack = Shader.PropertyToID("AlphaPack");
}
if (_propApplyGamma == 0)
{
_propApplyGamma = Shader.PropertyToID("_ApplyGamma");
}
if (_propLayout == 0)
{
_propLayout = Shader.PropertyToID("Layout");
}
if (_propChromaTex == 0)
{
_propChromaTex = Shader.PropertyToID(PropChromaTexName);
}
if (_propUseYpCbCr == 0)
{
_propUseYpCbCr = Shader.PropertyToID(PropUseYpCbCrName);
}
}
// We do a LateUpdate() to allow for any changes in the texture that may have happened in Update()
private void LateUpdate()
{
bool applied = false;
if (_media != null && _media.TextureProducer != null)
{
int planeCount = _media.m_Resample ? 1 : _media.TextureProducer.GetTextureCount();
for (int plane = 0; plane < planeCount; ++plane)
{
Texture resamplerTex = _media.FrameResampler == null || _media.FrameResampler.OutputTexture == null ? null : _media.FrameResampler.OutputTexture[plane];
Texture texture = _media.m_Resample ? resamplerTex : _media.TextureProducer.GetTexture(plane);
if (texture != null)
{
ApplyMapping(texture, _media.TextureProducer.RequiresVerticalFlip(), plane);
applied = true;
}
}
}
if (!applied)
{
if (_material != null && _material.HasProperty(_propUseYpCbCr))
{
_material.DisableKeyword("USE_YPCBCR");
}
ApplyMapping(_defaultTexture, false);
}
}
private void ApplyMapping(Texture texture, bool requiresYFlip, int plane = 0)
{
if (_material != null)
{
if (plane == 0)
{
if (string.IsNullOrEmpty(_texturePropertyName))
{
_material.mainTexture = texture;
if (texture != null)
{
if (requiresYFlip)
{
_material.mainTextureScale = new Vector2(_scale.x, -_scale.y);
_material.mainTextureOffset = Vector2.up + _offset;
}
else
{
_material.mainTextureScale = _scale;
_material.mainTextureOffset = _offset;
}
}
}
else
{
_material.SetTexture(_texturePropertyName, texture);
if (texture != null)
{
if (requiresYFlip)
{
_material.SetTextureScale(_texturePropertyName, new Vector2(_scale.x, -_scale.y));
_material.SetTextureOffset(_texturePropertyName, Vector2.up + _offset);
}
else
{
_material.SetTextureScale(_texturePropertyName, _scale);
_material.SetTextureOffset(_texturePropertyName, _offset);
}
}
}
}
else if (plane == 1)
{
if (_material.HasProperty(_propUseYpCbCr))
{
_material.EnableKeyword("USE_YPCBCR");
}
if (_material.HasProperty(_propChromaTex))
{
_material.SetTexture(_propChromaTex, texture);
if (texture != null)
{
#if UNITY_5_6_OR_NEWER
if (requiresYFlip)
{
_material.SetTextureScale(_propChromaTex, new Vector2(_scale.x, -_scale.y));
_material.SetTextureOffset(_propChromaTex, Vector2.up + _offset);
}
else
{
_material.SetTextureScale(_propChromaTex, _scale);
_material.SetTextureOffset(_propChromaTex, _offset);
}
#else
if (requiresYFlip)
{
_material.SetTextureScale(PropChromaTexName, new Vector2(_scale.x, -_scale.y));
_material.SetTextureOffset(PropChromaTexName, Vector2.up + _offset);
}
else
{
_material.SetTextureScale(PropChromaTexName, _scale);
_material.SetTextureOffset(PropChromaTexName, _offset);
}
#endif
}
}
}
if (_media != null)
{
// Apply changes for layout
if (_material.HasProperty(_propLayout))
{
Helper.SetupLayoutMaterial(_material, _media.VideoLayoutMapping);
}
// Apply changes for stereo videos
if (_material.HasProperty(_propStereo))
{
Helper.SetupStereoMaterial(_material, _media.m_StereoPacking, _media.m_DisplayDebugStereoColorTint);
}
// Apply changes for alpha videos
if (_material.HasProperty(_propAlphaPack))
{
Helper.SetupAlphaPackedMaterial(_material, _media.m_AlphaPacking);
}
#if UNITY_PLATFORM_SUPPORTS_LINEAR
// Apply gamma
if (_material.HasProperty(_propApplyGamma) && _media.Info != null)
{
Helper.SetupGammaMaterial(_material, _media.Info.PlayerSupportsLinearColorSpace());
}
#else
_propApplyGamma |= 0;
#endif
}
}
}
private void Start()
{
SaveProperties();
LateUpdate();
}
private void OnEnable()
{
SaveProperties();
LateUpdate();
}
private void OnDisable()
{
RestoreProperties();
}
private void SaveProperties()
{
if (_material != null)
{
if (string.IsNullOrEmpty(_texturePropertyName))
{
_originalTexture = _material.mainTexture;
_originalScale = _material.mainTextureScale;
_originalOffset = _material.mainTextureOffset;
}
else
{
_originalTexture = _material.GetTexture(_texturePropertyName);
_originalScale = _material.GetTextureScale(_texturePropertyName);
_originalOffset = _material.GetTextureOffset(_texturePropertyName);
}
}
}
private void RestoreProperties()
{
if (_material != null)
{
if (string.IsNullOrEmpty(_texturePropertyName))
{
_material.mainTexture = _originalTexture;
_material.mainTextureScale = _originalScale;
_material.mainTextureOffset = _originalOffset;
}
else
{
_material.SetTexture(_texturePropertyName, _originalTexture);
_material.SetTextureScale(_texturePropertyName, _originalScale);
_material.SetTextureOffset(_texturePropertyName, _originalOffset);
}
}
}
}
}