private static void DeclareSamplers(CodeGenContext context, TextureDescriptor[] descriptors)
{
int arraySize = 0;
foreach (var descriptor in descriptors)
{
if (descriptor.Type.HasFlag(SamplerType.Indexed))
{
if (arraySize == 0)
{
arraySize = ShaderConfig.SamplerArraySize;
}
else if (--arraySize != 0)
{
continue;
}
}
string indexExpr = NumberFormatter.FormatInt(arraySize);
string samplerName = OperandManager.GetSamplerName(
context.Config.Stage,
descriptor.CbufSlot,
descriptor.HandleIndex,
descriptor.Type.HasFlag(SamplerType.Indexed),
indexExpr);
string samplerTypeName = descriptor.Type.ToGlslSamplerType();
context.AppendLine($"layout (binding = {descriptor.Binding}) uniform {samplerTypeName} {samplerName};");
}
}
private static void DeclareImages(CodeGenContext context, StructuredProgramInfo info)
{
Dictionary <string, AstTextureOperation> images = new Dictionary <string, AstTextureOperation>();
foreach (AstTextureOperation texOp in info.Images.OrderBy(x => x.Handle))
{
string indexExpr = NumberFormatter.FormatInt(texOp.ArraySize);
string imageName = OperandManager.GetImageName(context.Config.Stage, texOp, indexExpr);
if (!images.TryAdd(imageName, texOp))
{
// Ensure that all texture operations share the same format.
// This avoid errors like mismatched formats.
texOp.Format = images[imageName].Format;
continue;
}
string layout = texOp.Format.ToGlslFormat();
if (!string.IsNullOrEmpty(layout))
{
layout = "layout(" + layout + ") ";
}
string imageTypeName = GetImageTypeName(texOp.Type, texOp.Format.GetComponentType());
context.AppendLine("uniform " + layout + imageTypeName + " " + imageName + ";");
}
foreach (KeyValuePair <string, AstTextureOperation> kv in images)
{
string imageName = kv.Key;
AstTextureOperation texOp = kv.Value;
if ((texOp.Type & SamplerType.Indexed) != 0)
{
for (int index = 0; index < texOp.ArraySize; index++)
{
string indexExpr = NumberFormatter.FormatInt(index);
string indexedSamplerName = OperandManager.GetSamplerName(context.Config.Stage, texOp, indexExpr);
var desc = new TextureDescriptor(indexedSamplerName, texOp.Type, texOp.Handle + index * 2);
context.TextureDescriptors.Add(desc);
}
}
else
{
var desc = new TextureDescriptor(imageName, texOp.Type, texOp.Handle);
context.ImageDescriptors.Add(desc);
}
}
}
private static void DeclareSamplers(CodeGenContext context, StructuredProgramInfo info)
{
Dictionary <string, AstTextureOperation> samplers = new Dictionary <string, AstTextureOperation>();
foreach (AstTextureOperation texOp in info.Samplers.OrderBy(x => x.Handle))
{
string indexExpr = NumberFormatter.FormatInt(texOp.ArraySize);
string samplerName = OperandManager.GetSamplerName(context.Config.Stage, texOp, indexExpr);
if (!samplers.TryAdd(samplerName, texOp))
{
continue;
}
string samplerTypeName = GetSamplerTypeName(texOp.Type);
context.AppendLine("uniform " + samplerTypeName + " " + samplerName + ";");
}
foreach (KeyValuePair <string, AstTextureOperation> kv in samplers)
{
string samplerName = kv.Key;
AstTextureOperation texOp = kv.Value;
TextureDescriptor desc;
if ((texOp.Flags & TextureFlags.Bindless) != 0)
{
AstOperand operand = texOp.GetSource(0) as AstOperand;
desc = new TextureDescriptor(samplerName, texOp.Type, operand.CbufSlot, operand.CbufOffset);
context.TextureDescriptors.Add(desc);
}
else if ((texOp.Type & SamplerType.Indexed) != 0)
{
for (int index = 0; index < texOp.ArraySize; index++)
{
string indexExpr = NumberFormatter.FormatInt(index);
string indexedSamplerName = OperandManager.GetSamplerName(context.Config.Stage, texOp, indexExpr);
desc = new TextureDescriptor(indexedSamplerName, texOp.Type, texOp.Handle + index * 2);
context.TextureDescriptors.Add(desc);
}
}
else
{
desc = new TextureDescriptor(samplerName, texOp.Type, texOp.Handle);
context.TextureDescriptors.Add(desc);
}
}
}
private static void DeclareSamplers(CodeGenContext context, StructuredProgramInfo info)
{
HashSet <string> samplers = new HashSet <string>();
// Texture instructions other than TextureSample (like TextureSize)
// may have incomplete sampler type information. In those cases,
// we prefer instead the more accurate information from the
// TextureSample instruction, if both are available.
foreach (AstTextureOperation texOp in info.Samplers.OrderBy(x => x.Handle * 2 + (x.Inst == Instruction.TextureSample ? 0 : 1)))
{
string indexExpr = NumberFormatter.FormatInt(texOp.ArraySize);
string samplerName = OperandManager.GetSamplerName(context.Config.Stage, texOp, indexExpr);
if ((texOp.Flags & TextureFlags.Bindless) != 0 || !samplers.Add(samplerName))
{
continue;
}
int firstBinding = -1;
if ((texOp.Type & SamplerType.Indexed) != 0)
{
for (int index = 0; index < texOp.ArraySize; index++)
{
int binding = context.Config.Counts.IncrementTexturesCount();
if (firstBinding < 0)
{
firstBinding = binding;
}
var desc = new TextureDescriptor(binding, texOp.Type, texOp.Format, texOp.CbufSlot, texOp.Handle + index * 2);
context.TextureDescriptors.Add(desc);
}
}
else
{
firstBinding = context.Config.Counts.IncrementTexturesCount();
var desc = new TextureDescriptor(firstBinding, texOp.Type, texOp.Format, texOp.CbufSlot, texOp.Handle);
context.TextureDescriptors.Add(desc);
}
string samplerTypeName = texOp.Type.ToGlslSamplerType();
context.AppendLine($"layout (binding = {firstBinding}) uniform {samplerTypeName} {samplerName};");
}
}
private static void DeclareImages(CodeGenContext context, StructuredProgramInfo info)
{
Dictionary <string, AstTextureOperation> images = new Dictionary <string, AstTextureOperation>();
foreach (AstTextureOperation texOp in info.Images.OrderBy(x => x.Handle))
{
string indexExpr = NumberFormatter.FormatInt(texOp.ArraySize);
string imageName = OperandManager.GetImageName(context.Config.Stage, texOp, indexExpr);
if (!images.TryAdd(imageName, texOp))
{
continue;
}
string imageTypeName = GetImageTypeName(texOp.Type);
context.AppendLine("writeonly uniform " + imageTypeName + " " + imageName + ";");
}
foreach (KeyValuePair <string, AstTextureOperation> kv in images)
{
string imageName = kv.Key;
AstTextureOperation texOp = kv.Value;
if ((texOp.Type & SamplerType.Indexed) != 0)
{
for (int index = 0; index < texOp.ArraySize; index++)
{
string indexExpr = NumberFormatter.FormatInt(index);
string indexedSamplerName = OperandManager.GetSamplerName(context.Config.Stage, texOp, indexExpr);
var desc = new TextureDescriptor(indexedSamplerName, texOp.Type, texOp.Handle + index * 2);
context.TextureDescriptors.Add(desc);
}
}
else
{
var desc = new TextureDescriptor(imageName, texOp.Type, texOp.Handle);
context.ImageDescriptors.Add(desc);
}
}
}
private static void DeclareSamplers(CodeGenContext context, TextureDescriptor[] descriptors)
{
int arraySize = 0;
foreach (var descriptor in descriptors)
{
if (descriptor.Type.HasFlag(SamplerType.Indexed))
{
if (arraySize == 0)
{
arraySize = ShaderConfig.SamplerArraySize;
}
else if (--arraySize != 0)
{
continue;
}
}
string indexExpr = NumberFormatter.FormatInt(arraySize);
string samplerName = OperandManager.GetSamplerName(
context.Config.Stage,
descriptor.CbufSlot,
descriptor.HandleIndex,
descriptor.Type.HasFlag(SamplerType.Indexed),
indexExpr);
string samplerTypeName = descriptor.Type.ToGlslSamplerType();
string layout = string.Empty;
if (context.Config.Options.TargetApi == TargetApi.Vulkan)
{
bool isBuffer = (descriptor.Type & SamplerType.Mask) == SamplerType.TextureBuffer;
int setIndex = isBuffer ? 4 : 2;
layout = $", set = {setIndex}";
}
context.AppendLine($"layout (binding = {descriptor.Binding}{layout}) uniform {samplerTypeName} {samplerName};");
}
}
private static void DeclareSamplers(CodeGenContext context, StructuredProgramInfo info)
{
Dictionary <string, AstTextureOperation> samplers = new Dictionary <string, AstTextureOperation>();
// Texture instructions other than TextureSample (like TextureSize)
// may have incomplete sampler type information. In those cases,
// we prefer instead the more accurate information from the
// TextureSample instruction, if both are available.
foreach (AstTextureOperation texOp in info.Samplers.OrderBy(x => x.Handle * 2 + (x.Inst == Instruction.TextureSample ? 0 : 1)))
{
string indexExpr = NumberFormatter.FormatInt(texOp.ArraySize);
string samplerName = OperandManager.GetSamplerName(context.Config.Stage, texOp, indexExpr);
if (!samplers.TryAdd(samplerName, texOp))
{
continue;
}
string samplerTypeName = GetSamplerTypeName(texOp.Type);
context.AppendLine("uniform " + samplerTypeName + " " + samplerName + ";");
}
foreach (KeyValuePair <string, AstTextureOperation> kv in samplers)
{
string samplerName = kv.Key;
AstTextureOperation texOp = kv.Value;
TextureDescriptor desc;
if ((texOp.Flags & TextureFlags.Bindless) != 0)
{
AstOperand operand = texOp.GetSource(0) as AstOperand;
desc = new TextureDescriptor(samplerName, texOp.Type, operand.CbufSlot, operand.CbufOffset);
context.TextureDescriptors.Add(desc);
}
else if ((texOp.Type & SamplerType.Indexed) != 0)
{
for (int index = 0; index < texOp.ArraySize; index++)
{
string indexExpr = NumberFormatter.FormatInt(index);
string indexedSamplerName = OperandManager.GetSamplerName(context.Config.Stage, texOp, indexExpr);
desc = new TextureDescriptor(indexedSamplerName, texOp.Type, texOp.Handle + index * 2);
context.TextureDescriptors.Add(desc);
}
}
else
{
desc = new TextureDescriptor(samplerName, texOp.Type, texOp.Handle);
context.TextureDescriptors.Add(desc);
}
}
}
