105 lines
4.3 KiB
C++
105 lines
4.3 KiB
C++
#include "GlobalParamsBuffer.h"
|
|
|
|
#include "GlRenderConstants.h"
|
|
#include "Std140Buffer.h"
|
|
|
|
#include <vector>
|
|
|
|
GlobalParamsBuffer::GlobalParamsBuffer(OpenGLRenderer& renderer) :
|
|
mRenderer(renderer)
|
|
{
|
|
}
|
|
|
|
bool GlobalParamsBuffer::Update(const RuntimeRenderState& state, unsigned availableSourceHistoryLength, unsigned availableTemporalHistoryLength, bool feedbackAvailable)
|
|
{
|
|
std::vector<unsigned char>& buffer = mScratchBuffer;
|
|
buffer.clear();
|
|
buffer.reserve(512);
|
|
|
|
AppendStd140Float(buffer, static_cast<float>(state.timeSeconds));
|
|
AppendStd140Vec2(buffer, static_cast<float>(state.inputWidth), static_cast<float>(state.inputHeight));
|
|
AppendStd140Vec2(buffer, static_cast<float>(state.outputWidth), static_cast<float>(state.outputHeight));
|
|
AppendStd140Float(buffer, static_cast<float>(state.utcTimeSeconds));
|
|
AppendStd140Float(buffer, static_cast<float>(state.utcOffsetSeconds));
|
|
AppendStd140Float(buffer, static_cast<float>(state.startupRandom));
|
|
AppendStd140Float(buffer, static_cast<float>(state.frameCount));
|
|
AppendStd140Float(buffer, static_cast<float>(state.mixAmount));
|
|
AppendStd140Float(buffer, static_cast<float>(state.bypass));
|
|
const unsigned effectiveSourceHistoryLength = availableSourceHistoryLength < state.effectiveTemporalHistoryLength
|
|
? availableSourceHistoryLength
|
|
: state.effectiveTemporalHistoryLength;
|
|
const unsigned effectiveTemporalHistoryLength = (state.temporalHistorySource == TemporalHistorySource::PreLayerInput)
|
|
? (availableTemporalHistoryLength < state.effectiveTemporalHistoryLength ? availableTemporalHistoryLength : state.effectiveTemporalHistoryLength)
|
|
: 0u;
|
|
AppendStd140Int(buffer, static_cast<int>(effectiveSourceHistoryLength));
|
|
AppendStd140Int(buffer, static_cast<int>(effectiveTemporalHistoryLength));
|
|
AppendStd140Int(buffer, feedbackAvailable ? 1 : 0);
|
|
|
|
for (const ShaderParameterDefinition& definition : state.parameterDefinitions)
|
|
{
|
|
auto valueIt = state.parameterValues.find(definition.id);
|
|
const ShaderParameterValue value = valueIt != state.parameterValues.end()
|
|
? valueIt->second
|
|
: ShaderParameterValue();
|
|
|
|
switch (definition.type)
|
|
{
|
|
case ShaderParameterType::Float:
|
|
AppendStd140Float(buffer, value.numberValues.empty() ? 0.0f : static_cast<float>(value.numberValues[0]));
|
|
break;
|
|
case ShaderParameterType::Vec2:
|
|
AppendStd140Vec2(buffer,
|
|
value.numberValues.size() > 0 ? static_cast<float>(value.numberValues[0]) : 0.0f,
|
|
value.numberValues.size() > 1 ? static_cast<float>(value.numberValues[1]) : 0.0f);
|
|
break;
|
|
case ShaderParameterType::Color:
|
|
AppendStd140Vec4(buffer,
|
|
value.numberValues.size() > 0 ? static_cast<float>(value.numberValues[0]) : 1.0f,
|
|
value.numberValues.size() > 1 ? static_cast<float>(value.numberValues[1]) : 1.0f,
|
|
value.numberValues.size() > 2 ? static_cast<float>(value.numberValues[2]) : 1.0f,
|
|
value.numberValues.size() > 3 ? static_cast<float>(value.numberValues[3]) : 1.0f);
|
|
break;
|
|
case ShaderParameterType::Boolean:
|
|
AppendStd140Int(buffer, value.booleanValue ? 1 : 0);
|
|
break;
|
|
case ShaderParameterType::Enum:
|
|
{
|
|
int selectedIndex = 0;
|
|
for (std::size_t optionIndex = 0; optionIndex < definition.enumOptions.size(); ++optionIndex)
|
|
{
|
|
if (definition.enumOptions[optionIndex].value == value.enumValue)
|
|
{
|
|
selectedIndex = static_cast<int>(optionIndex);
|
|
break;
|
|
}
|
|
}
|
|
AppendStd140Int(buffer, selectedIndex);
|
|
break;
|
|
}
|
|
case ShaderParameterType::Text:
|
|
break;
|
|
case ShaderParameterType::Trigger:
|
|
AppendStd140Int(buffer, value.numberValues.empty() ? 0 : static_cast<int>(value.numberValues[0]));
|
|
AppendStd140Float(buffer, value.numberValues.size() > 1 ? static_cast<float>(value.numberValues[1]) : -1000000.0f);
|
|
break;
|
|
}
|
|
}
|
|
|
|
buffer.resize(AlignStd140(buffer.size(), 16), 0);
|
|
|
|
glBindBuffer(GL_UNIFORM_BUFFER, mRenderer.GlobalParamsUBO());
|
|
if (mRenderer.GlobalParamsUBOSize() != static_cast<GLsizeiptr>(buffer.size()))
|
|
{
|
|
glBufferData(GL_UNIFORM_BUFFER, static_cast<GLsizeiptr>(buffer.size()), buffer.data(), GL_DYNAMIC_DRAW);
|
|
mRenderer.SetGlobalParamsUBOSize(static_cast<GLsizeiptr>(buffer.size()));
|
|
}
|
|
else
|
|
{
|
|
glBufferSubData(GL_UNIFORM_BUFFER, 0, static_cast<GLsizeiptr>(buffer.size()), buffer.data());
|
|
}
|
|
glBindBufferBase(GL_UNIFORM_BUFFER, kGlobalParamsBindingPoint, mRenderer.GlobalParamsUBO());
|
|
glBindBuffer(GL_UNIFORM_BUFFER, 0);
|
|
|
|
return true;
|
|
}
|