/// <summary>
/// Extract the specified sprite from the atlas texture.
/// </summary>
static SpriteEntry ExtractSprite(UISpriteData es, Color32[] oldPixels, Color32[] oldAlphaPixels, int oldWidth, int oldHeight)
{
int xmin = Mathf.Clamp(es.x, 0, oldWidth);
int ymin = Mathf.Clamp(es.y, 0, oldHeight);
int xmax = Mathf.Min(xmin + es.width, oldWidth - 1);
int ymax = Mathf.Min(ymin + es.height, oldHeight - 1);
int newWidth = Mathf.Clamp(es.width, 0, oldWidth);
int newHeight = Mathf.Clamp(es.height, 0, oldHeight);
if (newWidth == 0 || newHeight == 0)
{
return(null);
}
Color32[] newPixels = new Color32[newWidth * newHeight];
for (int y = 0; y < newHeight; ++y)
{
int cy = ymin + y;
if (cy > ymax)
{
cy = ymax;
}
for (int x = 0; x < newWidth; ++x)
{
int cx = xmin + x;
if (cx > xmax)
{
cx = xmax;
}
int newIndex = (newHeight - 1 - y) * newWidth + x;
int oldIndex = (oldHeight - 1 - cy) * oldWidth + cx;
if (oldAlphaPixels == null)
{
newPixels[newIndex] = oldPixels[oldIndex];
}
else
{
Color32 color = oldPixels[oldIndex];
color.a = oldAlphaPixels[oldIndex].r;
newPixels[newIndex] = color;
}
}
}
// Create a new sprite
SpriteEntry sprite = new SpriteEntry();
sprite.CopyFrom(es);
sprite.SetRect(0, 0, newWidth, newHeight);
sprite.SetTexture(newPixels, newWidth, newHeight);
return(sprite);
}
private SpriteEntry ExtractSprite(SpriteData es, Color32[] oldPixels, int oldWidth, int oldHeight)
{
var xmin = Mathf.Clamp(es.x, 0, oldWidth);
var ymin = Mathf.Clamp(es.y, 0, oldHeight);
var xmax = Mathf.Min(xmin + es.width, oldWidth - 1);
var ymax = Mathf.Min(ymin + es.height, oldHeight - 1);
var newWidth = Mathf.Clamp(es.width, 0, oldWidth);
var newHeight = Mathf.Clamp(es.height, 0, oldHeight);
if (newWidth == 0 || newHeight == 0)
{
return(null);
}
var newPixels = new Color32[newWidth * newHeight];
for (int y = 0; y < newHeight; ++y)
{
int cy = ymin + y;
if (cy > ymax)
{
cy = ymax;
}
for (int x = 0; x < newWidth; ++x)
{
int cx = xmin + x;
if (cx > xmax)
{
cx = xmax;
}
int newIndex = (newHeight - 1 - y) * newWidth + x;
int oldIndex = (oldHeight - 1 - cy) * oldWidth + cx;
newPixels[newIndex] = oldPixels[oldIndex];
}
}
var sprite = new SpriteEntry();
sprite.CopyFrom(es);
sprite.SetRect(0, 0, newWidth, newHeight);
sprite.SetTexture(newPixels, newWidth, newHeight);
return(sprite);
}
/// <summary>
/// Create a list of sprites using the specified list of textures.
/// </summary>
static public List <SpriteEntry> CreateSprites(List <Texture> textures)
{
List <SpriteEntry> list = new List <SpriteEntry>();
foreach (Texture tex in textures)
{
// 太慢，加速
//Texture2D oldTex = NGUIEditorTools.ImportTexture(tex, true, false, true);
Texture2D oldTex = tex as Texture2D;
if (oldTex == null)
{
oldTex = tex as Texture2D;
}
if (oldTex == null)
{
continue;
}
// If we aren't doing trimming, just use the texture as-is
if (!NGUISettings.atlasTrimming && !NGUISettings.atlasPMA)
{
SpriteEntry sprite = new SpriteEntry();
sprite.SetRect(0, 0, oldTex.width, oldTex.height);
sprite.tex = oldTex;
sprite.name = oldTex.name;
sprite.temporaryTexture = false;
list.Add(sprite);
continue;
}
// If we want to trim transparent pixels, there is more work to be done
Color32[] pixels = oldTex.GetPixels32();
int xmin = oldTex.width;
int xmax = 0;
int ymin = oldTex.height;
int ymax = 0;
int oldWidth = oldTex.width;
int oldHeight = oldTex.height;
// Find solid pixels
if (NGUISettings.atlasTrimming)
{
for (int y = 0, yw = oldHeight; y < yw; ++y)
{
for (int x = 0, xw = oldWidth; x < xw; ++x)
{
Color32 c = pixels[y * xw + x];
if (c.a != 0)
{
if (y < ymin)
{
ymin = y;
}
if (y > ymax)
{
ymax = y;
}
if (x < xmin)
{
xmin = x;
}
if (x > xmax)
{
xmax = x;
}
}
}
}
}
else
{
xmin = 0;
xmax = oldWidth - 1;
ymin = 0;
ymax = oldHeight - 1;
}
int newWidth = (xmax - xmin) + 1;
int newHeight = (ymax - ymin) + 1;
if (newWidth > 0 && newHeight > 0)
{
SpriteEntry sprite = new SpriteEntry();
sprite.x = 0;
sprite.y = 0;
sprite.width = oldTex.width;
sprite.height = oldTex.height;
// If the dimensions match, then nothing was actually trimmed
if (!NGUISettings.atlasPMA && (newWidth == oldWidth && newHeight == oldHeight))
{
sprite.tex = oldTex;
sprite.name = oldTex.name;
sprite.temporaryTexture = false;
}
else
{
// Copy the non-trimmed texture data into a temporary buffer
Color32[] newPixels = new Color32[newWidth * newHeight];
for (int y = 0; y < newHeight; ++y)
{
for (int x = 0; x < newWidth; ++x)
{
int newIndex = y * newWidth + x;
int oldIndex = (ymin + y) * oldWidth + (xmin + x);
if (NGUISettings.atlasPMA)
{
newPixels[newIndex] = NGUITools.ApplyPMA(pixels[oldIndex]);
}
else
{
newPixels[newIndex] = pixels[oldIndex];
}
}
}
// Create a new texture
sprite.name = oldTex.name;
sprite.SetTexture(newPixels, newWidth, newHeight);
// Remember the padding offset
sprite.SetPadding(xmin, ymin, oldWidth - newWidth - xmin, oldHeight - newHeight - ymin);
}
list.Add(sprite);
}
}
return(list);
}
/// <summary>
/// Extract the specified sprite from the atlas texture.
/// </summary>
static SpriteEntry ExtractSprite (UISpriteData es, Color32[] oldPixels, int oldWidth, int oldHeight)
{
int xmin = Mathf.Clamp(es.x, 0, oldWidth);
int ymin = Mathf.Clamp(es.y, 0, oldHeight);
int xmax = Mathf.Min(xmin + es.width, oldWidth - 1);
int ymax = Mathf.Min(ymin + es.height, oldHeight - 1);
int newWidth = Mathf.Clamp(es.width, 0, oldWidth);
int newHeight = Mathf.Clamp(es.height, 0, oldHeight);
if (newWidth == 0 || newHeight == 0) return null;
Color32[] newPixels = new Color32[newWidth * newHeight];
for (int y = 0; y < newHeight; ++y)
{
int cy = ymin + y;
if (cy > ymax) cy = ymax;
for (int x = 0; x < newWidth; ++x)
{
int cx = xmin + x;
if (cx > xmax) cx = xmax;
int newIndex = (newHeight - 1 - y) * newWidth + x;
int oldIndex = (oldHeight - 1 - cy) * oldWidth + cx;
newPixels[newIndex] = oldPixels[oldIndex];
}
}
// Create a new sprite
SpriteEntry sprite = new SpriteEntry();
sprite.CopyFrom(es);
sprite.SetRect(0, 0, newWidth, newHeight);
sprite.SetTexture(newPixels, newWidth, newHeight);
return sprite;
}
/// <summary>
/// Create a list of sprites using the specified list of textures.
/// </summary>
static public List<SpriteEntry> CreateSprites (List<Texture> textures)
{
List<SpriteEntry> list = new List<SpriteEntry>();
foreach (Texture tex in textures)
{
Texture2D oldTex = NGUIEditorTools.ImportTexture(tex, true, false, true);
if (oldTex == null) oldTex = tex as Texture2D;
if (oldTex == null) continue;
// If we aren't doing trimming, just use the texture as-is
if (!NGUISettings.atlasTrimming && !NGUISettings.atlasPMA)
{
SpriteEntry sprite = new SpriteEntry();
sprite.SetRect(0, 0, oldTex.width, oldTex.height);
sprite.tex = oldTex;
sprite.name = oldTex.name;
sprite.temporaryTexture = false;
list.Add(sprite);
continue;
}
// If we want to trim transparent pixels, there is more work to be done
Color32[] pixels = oldTex.GetPixels32();
int xmin = oldTex.width;
int xmax = 0;
int ymin = oldTex.height;
int ymax = 0;
int oldWidth = oldTex.width;
int oldHeight = oldTex.height;
// Find solid pixels
if (NGUISettings.atlasTrimming)
{
for (int y = 0, yw = oldHeight; y < yw; ++y)
{
for (int x = 0, xw = oldWidth; x < xw; ++x)
{
Color32 c = pixels[y * xw + x];
if (c.a != 0)
{
if (y < ymin) ymin = y;
if (y > ymax) ymax = y;
if (x < xmin) xmin = x;
if (x > xmax) xmax = x;
}
}
}
}
else
{
xmin = 0;
xmax = oldWidth - 1;
ymin = 0;
ymax = oldHeight - 1;
}
int newWidth = (xmax - xmin) + 1;
int newHeight = (ymax - ymin) + 1;
if (newWidth > 0 && newHeight > 0)
{
SpriteEntry sprite = new SpriteEntry();
sprite.x = 0;
sprite.y = 0;
sprite.width = oldTex.width;
sprite.height = oldTex.height;
// If the dimensions match, then nothing was actually trimmed
if (!NGUISettings.atlasPMA && (newWidth == oldWidth && newHeight == oldHeight))
{
sprite.tex = oldTex;
sprite.name = oldTex.name;
sprite.temporaryTexture = false;
}
else
{
// Copy the non-trimmed texture data into a temporary buffer
Color32[] newPixels = new Color32[newWidth * newHeight];
for (int y = 0; y < newHeight; ++y)
{
for (int x = 0; x < newWidth; ++x)
{
int newIndex = y * newWidth + x;
int oldIndex = (ymin + y) * oldWidth + (xmin + x);
if (NGUISettings.atlasPMA) newPixels[newIndex] = NGUITools.ApplyPMA(pixels[oldIndex]);
else newPixels[newIndex] = pixels[oldIndex];
}
}
// Create a new texture
sprite.name = oldTex.name;
sprite.SetTexture(newPixels, newWidth, newHeight);
// Remember the padding offset
sprite.SetPadding(xmin, ymin, oldWidth - newWidth - xmin, oldHeight - newHeight - ymin);
}
list.Add(sprite);
}
}
return list;
}