/// <summary>
/// create host visible linear image without command from data pointed by IntPtr pointer containing full image file (jpg, png,...)
/// </summary>
public static Image Load(Device dev,
IntPtr bitmap, ulong bitmapByteCount, VkImageUsageFlags usage = VkImageUsageFlags.TransferSrc,
VkFormat format = VkFormat.Undefined,
VkMemoryPropertyFlags memoryProps = VkMemoryPropertyFlags.HostVisible | VkMemoryPropertyFlags.HostCoherent,
VkImageTiling tiling = VkImageTiling.Linear, bool generateMipmaps = false,
VkImageType imageType = VkImageType.Image2D)
{
if (format == VkFormat.Undefined)
{
format = DefaultTextureFormat;
}
if (generateMipmaps)
{
usage |= (VkImageUsageFlags.TransferSrc | VkImageUsageFlags.TransferDst);
}
using (StbImage stbi = new StbImage(bitmap, bitmapByteCount)) {
uint mipLevels = generateMipmaps ? ComputeMipLevels(stbi.Width, stbi.Height) : 1;
Image img = new Image(dev, format, usage, memoryProps, (uint)stbi.Width, (uint)stbi.Height, imageType,
VkSampleCountFlags.SampleCount1, tiling, mipLevels);
img.Map();
stbi.CoptyTo(img.MappedData);
img.Unmap();
return(img);
}
}
void initUISurface()
{
iFace.surf?.Dispose();
uiImage?.Dispose();
uiImage = new Image(dev, VkFormat.B8g8r8a8Unorm, VkImageUsageFlags.Sampled,
VkMemoryPropertyFlags.HostVisible | VkMemoryPropertyFlags.HostCoherent, Width, Height, VkImageType.Image2D,
VkSampleCountFlags.SampleCount1, VkImageTiling.Linear);
uiImage.CreateView(VkImageViewType.ImageView2D, VkImageAspectFlags.Color);
uiImage.CreateSampler(VkFilter.Nearest, VkFilter.Nearest, VkSamplerMipmapMode.Nearest, VkSamplerAddressMode.ClampToBorder);
uiImage.Descriptor.imageLayout = VkImageLayout.ShaderReadOnlyOptimal;
uiImage.Map();
CommandBuffer cmd = cmdPool.AllocateAndStart(VkCommandBufferUsageFlags.OneTimeSubmit);
uiImage.SetLayout(cmd, VkImageAspectFlags.Color,
VkImageLayout.Undefined, VkImageLayout.ShaderReadOnlyOptimal);
presentQueue.EndSubmitAndWait(cmd, true);
NotifyValueChanged("uiImage", uiImage);
uiImageUpdate?.Write(dev, uiImage.Descriptor);
iFace.surf = new Crow.Cairo.ImageSurface(uiImage.MappedData, Crow.Cairo.Format.ARGB32,
(int)Width, (int)Height, (int)uiImage.GetSubresourceLayout().rowPitch);
}
/// <summary>
/// create host visible linear image without command from path
/// </summary>
public static Image Load(Device dev,
string path, VkImageUsageFlags usage = VkImageUsageFlags.Sampled, bool reserveSpaceForMipmaps = true, VkFormat format = VkFormat.Undefined,
VkMemoryPropertyFlags memoryProps = VkMemoryPropertyFlags.HostVisible | VkMemoryPropertyFlags.HostCoherent,
VkImageTiling tiling = VkImageTiling.Linear, VkImageType imageType = VkImageType.Image2D)
{
if (format == VkFormat.Undefined)
{
format = DefaultTextureFormat;
}
using (StbImage stbi = new StbImage(path)) {
uint mipLevels = reserveSpaceForMipmaps ? ComputeMipLevels(stbi.Width, stbi.Height) : 1;
Image img = new Image(dev, format, usage, memoryProps, (uint)stbi.Width, (uint)stbi.Height, imageType,
VkSampleCountFlags.SampleCount1, tiling, mipLevels);
img.Map();
stbi.CoptyTo(img.MappedData);
img.Unmap();
return(img);
}
}