public void Shape(Buffer buffer, IReadOnlyList <Feature> features, IReadOnlyList <string> shapers)
{
if (buffer == null)
{
throw new ArgumentNullException(nameof(buffer));
}
var featuresPtr = features == null || features.Count == 0 ? IntPtr.Zero : StructureArrayToPtr(features);
var shapersPtr = shapers == null || shapers.Count == 0 ? IntPtr.Zero : StructureArrayToPtr(shapers);
HarfBuzzApi.hb_shape_full(
Handle,
buffer.Handle,
featuresPtr,
featuresPtr != IntPtr.Zero ? features.Count : 0,
shapersPtr);
if (featuresPtr != IntPtr.Zero)
{
Marshal.FreeCoTaskMem(featuresPtr);
}
if (shapersPtr != IntPtr.Zero)
{
Marshal.FreeCoTaskMem(shapersPtr);
}
}
public void Shape(Buffer buffer, IReadOnlyList <Feature> features, IReadOnlyList <string> shapers)
{
if (buffer == null)
{
throw new ArgumentNullException(nameof(buffer));
}
if (buffer.Direction == Direction.Invalid)
{
throw new InvalidOperationException("Buffer's Direction must be valid.");
}
if (buffer.ContentType != ContentType.Unicode)
{
throw new InvalidOperationException("Buffer's ContentType must of type Unicode.");
}
void *[] shapersPtrs = null;
if (shapers?.Count > 0)
{
shapersPtrs = new void *[shapers.Count + 1];
int i;
for (i = 0; i < shapers.Count; i++)
{
shapersPtrs[i] = (void *)Marshal.StringToHGlobalAnsi(shapers[i]);
}
shapersPtrs[i] = null;
}
var featuresArray = features?.ToArray();
fixed(Feature *fPtr = featuresArray)
fixed(void **sPtr = shapersPtrs)
{
HarfBuzzApi.hb_shape_full(
Handle,
buffer.Handle,
fPtr,
(uint)(features?.Count ?? 0),
sPtr);
}
if (shapersPtrs != null)
{
for (var i = 0; i < shapersPtrs.Length; i++)
{
if (shapersPtrs[i] != null)
{
Marshal.FreeHGlobal((IntPtr)shapersPtrs[i]);
}
}
}
}
public void Shape(Buffer buffer, IReadOnlyList <Feature> features, IReadOnlyList <string> shapers)
{
if (buffer == null)
{
throw new ArgumentNullException(nameof(buffer));
}
if (buffer.Direction == Direction.Invalid)
{
throw new InvalidOperationException("Buffer's Direction must be valid.");
}
if (buffer.ContentType != ContentType.Unicode)
{
throw new InvalidOperationException("Buffer's ContentType must of type Unicode.");
}
var featuresPtr = features == null || features.Count == 0 ? IntPtr.Zero : StructureArrayToPtr(features);
var shapersPtr = shapers == null || shapers.Count == 0 ? IntPtr.Zero : StructureArrayToPtr(shapers);
HarfBuzzApi.hb_shape_full(
Handle,
buffer.Handle,
featuresPtr,
features?.Count ?? 0,
shapersPtr);
if (featuresPtr != IntPtr.Zero)
{
Marshal.FreeCoTaskMem(featuresPtr);
}
if (shapersPtr != IntPtr.Zero)
{
Marshal.FreeCoTaskMem(shapersPtr);
}
}
