private Color32[] GetColorDataFromCurrentImage()
{
int width = DevILLoader.ilGetInteger(DevILConstants.IL_IMAGE_WIDTH); // getting image width
int height = DevILLoader.ilGetInteger(DevILConstants.IL_IMAGE_HEIGHT); // and height
Debug.Log("Image resolution: w = " + width + "; h = " + height);
/* how much memory will we need? */
int memoryNeeded = width * height * 4;
/* We multiply by 4 here because we want 4 components per pixel */
byte[] imageColorData = new byte[memoryNeeded];
/* finally get the image data */
DevILLoader.ilCopyPixels(0, 0, 0, (uint)width, (uint)height, 1, DevILConstants.IL_RGBA, DevILConstants.IL_UNSIGNED_BYTE, imageColorData);
if (imageColorData.Length <= 0)
{
return(null);
}
// create colors from color data
Color32[] texColors = new Color32[imageColorData.Length / 4];
for (int i = 0, j = 0; i < imageColorData.Length; i += 4, ++j)
{
texColors[j].r = imageColorData[i];
texColors[j].g = imageColorData[i + 1];
texColors[j].b = imageColorData[i + 2];
texColors[j].a = imageColorData[i + 3];
}
return(texColors);
}
private Texture2D LoadImageFromData(byte[] imageData)
{
const int cNumImages = 1;
uint[] handles = new uint[cNumImages];
Texture2D resTexture = null;
/* First we initialize the library. */
/*Do not forget that... */
DevILLoader.ilInit();
/* We want all images to be loaded in a consistent manner */
DevILLoader.ilEnable(DevILConstants.IL_ORIGIN_SET);
/* In the next section, we load one image */
DevILLoader.ilGenImages(cNumImages, handles);
DevILLoader.ilBindImage(handles[0]);
//
//uint res = PluginLoader.ilLoadL(DevILConstants.IL_PNG, imageData, (uint)imageData.Length);
bool res = DevILLoader.ilLoadL(DevILConstants.IL_TYPE_UNKNOWN, imageData, (uint)imageData.Length);
if (!res)
{
Debug.LogWarning("Error! Cannot load image from data");
return(resTexture);
}
/* Let's spy on it a little bit */
int width = DevILLoader.ilGetInteger(DevILConstants.IL_IMAGE_WIDTH); // getting image width
int height = DevILLoader.ilGetInteger(DevILConstants.IL_IMAGE_HEIGHT); // and height
Debug.Log("Base image resolution: w = " + width + "; h = " + height);
// create result texture
resTexture = new Texture2D(width, height, TextureFormat.RGBA32, true);
//
Color32[] texColors = GetColorDataFromCurrentImage();
// set first mip map
resTexture.SetPixels32(texColors, 0);
// now, try to set another levels of bitmap
{
uint currMipMapLevel = 1;
const uint cMaxMipMapLevel = 15;
while (currMipMapLevel < cMaxMipMapLevel)
{
res = DevILLoader.ilActiveMipmap(currMipMapLevel);
Debug.Log("res = " + res + " currMipMapLevel = " + currMipMapLevel);
if (!res)
{
break;
}
//
texColors = GetColorDataFromCurrentImage();
Debug.Log("currMipMapLevel = " + currMipMapLevel);
// set next mip map
resTexture.SetPixels32(texColors, (int)currMipMapLevel);
++currMipMapLevel;
// restore base image
DevILLoader.ilBindImage(handles[0]);
}
}
resTexture.Apply(true);
//resTexture.Apply(false); // show this to ven!
/* Finally, clean the mess! */
DevILLoader.ilDeleteImages(cNumImages, handles);
return(resTexture);
}
