private void LoadHeightMap(System.IO.FileInfo _FileName)
{
try {
tabControlGenerators.Enabled = false;
// Dispose of existing resources
if (m_imageSourceHeightMap != null)
{
m_imageSourceHeightMap.Dispose();
}
m_imageSourceHeightMap = null;
if (m_textureTarget_CPU != null)
{
m_textureTarget_CPU.Dispose();
}
m_textureTarget_CPU = null;
if (m_textureTarget0 != null)
{
m_textureTarget0.Dispose();
}
m_textureTarget0 = null;
if (m_textureTarget1 != null)
{
m_textureTarget1.Dispose();
}
m_textureTarget1 = null;
if (m_textureSourceHeightMap != null)
{
m_textureSourceHeightMap.Dispose();
}
m_textureSourceHeightMap = null;
// Load the source image
m_SourceFileName = _FileName;
m_imageSourceHeightMap = new ImageUtility.ImageFile(_FileName);
outputPanelInputHeightMap.Image = m_imageSourceHeightMap;
W = m_imageSourceHeightMap.Width;
H = m_imageSourceHeightMap.Height;
// Build the source texture assuming the image is in linear space
float4[] scanline = new float4[W];
PixelsBuffer SourceHeightMap = new PixelsBuffer(W * H * 4);
// using ( System.IO.BinaryWriter Wr = SourceHeightMap.OpenStreamWrite() )
// for ( uint Y=0; Y < H; Y++ ) {
// m_imageSourceHeightMap.ReadScanline( Y, scanline );
// for ( int X=0; X < W; X++ )
// Wr.Write( scanline[X].x );
// }
using (System.IO.BinaryWriter Wr = SourceHeightMap.OpenStreamWrite()) {
m_imageSourceHeightMap.ReadPixels((uint X, uint Y, ref float4 _color) => {
Wr.Write(_color.x);
});
}
m_textureSourceHeightMap = new Texture2D(m_device, W, H, 1, 1, ImageUtility.PIXEL_FORMAT.R32F, ImageUtility.COMPONENT_FORMAT.AUTO, false, false, new PixelsBuffer[] { SourceHeightMap });
// Build the target UAV & staging texture for readback
m_textureTarget0 = new Texture2D(m_device, W, H, 1, 1, ImageUtility.PIXEL_FORMAT.R32F, ImageUtility.COMPONENT_FORMAT.AUTO, false, true, null);
m_textureTarget1 = new Texture2D(m_device, W, H, 1, 1, ImageUtility.PIXEL_FORMAT.RGBA32F, ImageUtility.COMPONENT_FORMAT.AUTO, false, true, null);
m_textureTarget_CPU = new Texture2D(m_device, W, H, 1, 1, ImageUtility.PIXEL_FORMAT.RGBA32F, ImageUtility.COMPONENT_FORMAT.AUTO, true, false, null);
tabControlGenerators.Enabled = true;
buttonGenerate.Focus();
} catch (Exception _e) {
MessageBox("An error occurred while opening the image:\n\n", _e);
}
}
