/// <summary>
/// Ensures that the texture bindings are visible to the host GPU.
/// Note: this actually performs the binding using the host graphics API.
/// </summary>
/// <param name="pool">The current texture pool</param>
/// <param name="stage">The shader stage using the textures to be bound</param>
/// <param name="stageIndex">The stage number of the specified shader stage</param>
private void CommitTextureBindings(TexturePool pool, ShaderStage stage, int stageIndex)
{
if (_textureBindings[stageIndex] == null)
{
return;
}
for (int index = 0; index < _textureBindings[stageIndex].Length; index++)
{
TextureBindingInfo bindingInfo = _textureBindings[stageIndex][index];
int textureBufferIndex = bindingInfo.CbufSlot < 0 ? _textureBufferIndex : bindingInfo.CbufSlot;
int packedId = ReadPackedId(stageIndex, bindingInfo.Handle, textureBufferIndex);
int textureId = UnpackTextureId(packedId);
int samplerId;
if (_samplerIndex == SamplerIndex.ViaHeaderIndex)
{
samplerId = textureId;
}
else
{
samplerId = UnpackSamplerId(packedId);
}
Texture texture = pool.Get(textureId);
ITexture hostTexture = texture?.GetTargetTexture(bindingInfo.Target);
if (_textureState[stageIndex][index].Texture != hostTexture || _rebind)
{
if (UpdateScale(texture, bindingInfo, index, stage))
{
hostTexture = texture?.GetTargetTexture(bindingInfo.Target);
}
_textureState[stageIndex][index].Texture = hostTexture;
_context.Renderer.Pipeline.SetTexture(bindingInfo.Binding, hostTexture);
}
if (hostTexture != null && texture.Target == Target.TextureBuffer)
{
// Ensure that the buffer texture is using the correct buffer as storage.
// Buffers are frequently re-created to accomodate larger data, so we need to re-bind
// to ensure we're not using a old buffer that was already deleted.
_context.Methods.BufferManager.SetBufferTextureStorage(hostTexture, texture.Range.GetSubRange(0).Address, texture.Size, bindingInfo, bindingInfo.Format, false);
}
Sampler sampler = _samplerPool.Get(samplerId);
ISampler hostSampler = sampler?.HostSampler;
if (_textureState[stageIndex][index].Sampler != hostSampler || _rebind)
{
_textureState[stageIndex][index].Sampler = hostSampler;
_context.Renderer.Pipeline.SetSampler(bindingInfo.Binding, hostSampler);
}
}
}
/// <summary>
/// Ensures that the texture bindings are visible to the host GPU.
/// Note: this actually performs the binding using the host graphics API.
/// </summary>
/// <param name="pool">The current texture pool</param>
/// <param name="stage">The shader stage using the textures to be bound</param>
/// <param name="stageIndex">The stage number of the specified shader stage</param>
private void CommitTextureBindings(TexturePool pool, ShaderStage stage, int stageIndex)
{
if (_textureBindings[stageIndex] == null || _textureBindings[stageIndex].Length == 0)
{
return;
}
var samplerPool = _samplerPool;
if (pool == null)
{
Logger.Error?.Print(LogClass.Gpu, $"Shader stage \"{stage}\" uses textures, but texture pool was not set.");
return;
}
if (samplerPool == null)
{
Logger.Error?.Print(LogClass.Gpu, $"Shader stage \"{stage}\" uses textures, but sampler pool was not set.");
return;
}
for (int index = 0; index < _textureBindings[stageIndex].Length; index++)
{
TextureBindingInfo bindingInfo = _textureBindings[stageIndex][index];
int textureBufferIndex;
int samplerBufferIndex;
if (bindingInfo.CbufSlot < 0)
{
textureBufferIndex = _textureBufferIndex;
samplerBufferIndex = textureBufferIndex;
}
else
{
textureBufferIndex = bindingInfo.CbufSlot & SlotMask;
samplerBufferIndex = ((bindingInfo.CbufSlot >> SlotHigh) != 0) ? (bindingInfo.CbufSlot >> SlotHigh) - 1 : textureBufferIndex;
}
int packedId = ReadPackedId(stageIndex, bindingInfo.Handle, textureBufferIndex, samplerBufferIndex);
int textureId = UnpackTextureId(packedId);
int samplerId;
if (_samplerIndex == SamplerIndex.ViaHeaderIndex)
{
samplerId = textureId;
}
else
{
samplerId = UnpackSamplerId(packedId);
}
Texture texture = pool.Get(textureId);
Sampler sampler = _samplerPool.Get(samplerId);
ITexture hostTexture = texture?.GetTargetTexture(bindingInfo.Target);
ISampler hostSampler = sampler?.HostSampler;
if (_textureState[stageIndex][index].Texture != hostTexture ||
_textureState[stageIndex][index].Sampler != hostSampler ||
_rebind)
{
if (UpdateScale(texture, bindingInfo, index, stage))
{
hostTexture = texture?.GetTargetTexture(bindingInfo.Target);
}
_textureState[stageIndex][index].Texture = hostTexture;
_textureState[stageIndex][index].Sampler = hostSampler;
_context.Renderer.Pipeline.SetTextureAndSampler(bindingInfo.Binding, hostTexture, hostSampler);
}
if (hostTexture != null && texture.Target == Target.TextureBuffer)
{
// Ensure that the buffer texture is using the correct buffer as storage.
// Buffers are frequently re-created to accomodate larger data, so we need to re-bind
// to ensure we're not using a old buffer that was already deleted.
_channel.BufferManager.SetBufferTextureStorage(hostTexture, texture.Range.GetSubRange(0).Address, texture.Size, bindingInfo, bindingInfo.Format, false);
}
}
}