public static ShaderModule LoadShaderModule(IVulkanAppHost host, VulkanContext ctx, string path)
{
const int defaultBufferSize = 4096;
using (Stream stream = host.Open(path))
using (var ms = new MemoryStream())
{
stream.CopyTo(ms, defaultBufferSize);
return(ctx.Device.CreateShaderModule(new ShaderModuleCreateInfo(ms.ToArray())));
}
}
public static VkShaderModule LoadShaderModule(IVulkanAppHost host, VulkanContext ctx, string path)
{
const int defaultBufferSize = 4096;
using (Stream stream = host.Open(path))
using (var ms = new MemoryStream())
{
stream.CopyTo(ms, defaultBufferSize);
byte[] bytes = ms.ToArray();
// Create a new shader module that will be used for Pipeline creation
VkShaderModule shaderModule;
vkCreateShaderModule(ctx.Device, bytes, null, out shaderModule);
return(shaderModule);
}
}
public static VulkanImage LoadKtxVulkanImage(IVulkanAppHost host, VulkanContext ctx, string path)
{
using (var reader = new BinaryReader(host.Open(path)))
{
byte[] identifier = reader.ReadBytes(12);
if (!identifier.SequenceEqual(KtxIdentifier))
{
throw new InvalidOperationException("File is not in Khronos Texture format.");
}
int endienness = reader.ReadInt32();
int glType = reader.ReadInt32();
int glTypeSize = reader.ReadInt32();
int glFormat = reader.ReadInt32();
int glInternalFormat = reader.ReadInt32();
int glBaseInternalFormat = reader.ReadInt32();
int pixelWidth = reader.ReadInt32();
int pixelHeight = reader.ReadInt32();
int pixelDepth = reader.ReadInt32();
int numberOfArrayElements = reader.ReadInt32();
int numberOfFaces = reader.ReadInt32();
int numberOfMipmapLevels = reader.ReadInt32();
int bytesOfKeyValueData = reader.ReadInt32();
// Skip key-value data.
reader.ReadBytes(bytesOfKeyValueData);
// Some of the values may be 0 - ensure at least 1.
pixelWidth = Math.Max(pixelWidth, 1);
pixelHeight = Math.Max(pixelHeight, 1);
pixelDepth = Math.Max(pixelDepth, 1);
numberOfArrayElements = Math.Max(numberOfArrayElements, 1);
numberOfFaces = Math.Max(numberOfFaces, 1);
numberOfMipmapLevels = Math.Max(numberOfMipmapLevels, 1);
int numberOfSlices = Math.Max(numberOfFaces, numberOfArrayElements);
if (!_glInternalFormatToVkFormat.TryGetValue(glInternalFormat, out Format format))
{
throw new NotImplementedException("glInternalFormat not mapped to VkFormat.");
}
var data = new TextureData
{
Mipmaps = new TextureData.Mipmap[numberOfMipmapLevels],
Format = format
};
for (int i = 0; i < numberOfMipmapLevels; i++)
{
var mipmap = new TextureData.Mipmap();
mipmap.Size = reader.ReadInt32();
mipmap.Extent = new Extent3D(pixelWidth, pixelHeight, pixelDepth);
mipmap.Data = reader.ReadBytes(mipmap.Size);
data.Mipmaps[i] = mipmap;
break; // TODO: impl
//for (int j = 0; j < numberOfArrayElements; j++)
//{
// for (int k = 0; k < numberOfFaces; k++)
// {
// for (int l = 0; l < pixelDepth; l++)
// {
// //for (int row = 0;
// // row < )
// }
// }
//}
}
return(VulkanImage.Texture2D(ctx, data));
}
}
