public OpenGLESShaderConstantBindingSlots(
ShaderSet shaderSet,
ShaderResourceDescription[] constants)
{
var programID = ((OpenGLESShaderSet)shaderSet).ProgramID;
int bindingIndex = 0;
int constantsCount = constants.Length;
_bindings = new UniformBinding[constantsCount];
for (int i = 0; i < constantsCount; i++)
{
ShaderResourceDescription description = constants[i];
int blockIndex = GL.GetUniformBlockIndex(programID, description.Name);
if (blockIndex != -1)
{
ValidateBlockSize(programID, blockIndex, description.DataSizeInBytes, description.Name);
_bindings[i] = new UniformBlockBinding(
programID,
blockIndex,
bindingIndex,
description.DataSizeInBytes);
bindingIndex += 1;
}
else
{
int uniformLocation = GL.GetUniformLocation(programID, description.Name);
if (uniformLocation == -1)
{
throw new VeldridException($"No uniform or uniform block with name {description.Name} was found.");
}
_bindings[i] = new UniformLocationBinding(
programID,
uniformLocation);
}
}
}
public OpenGLShaderConstantBindings(
RenderContext rc,
ShaderSet shaderSet,
MaterialInputs <MaterialGlobalInputElement> globalInputs,
MaterialInputs <MaterialPerObjectInputElement> perObjectInputs)
{
var programID = ((OpenGLShaderSet)shaderSet).ProgramID;
int globalInputsCount = globalInputs.Elements.Length;
int bindingIndex = 0;
_globalUniformBindings = new GlobalBindingPair[globalInputsCount];
for (int i = 0; i < globalInputsCount; i++)
{
var element = globalInputs.Elements[i];
ConstantBufferDataProvider dataProvider = element.UseGlobalNamedBuffer
? rc.GetNamedGlobalBufferProviderPair(element.GlobalProviderName).DataProvider
: element.DataProvider;
int blockIndex = GL.GetUniformBlockIndex(programID, element.Name);
if (blockIndex != -1)
{
ValidateBlockSize(programID, blockIndex, dataProvider.DataSizeInBytes, element.Name);
_globalUniformBindings[i] = new GlobalBindingPair(
new UniformBlockBinding(
programID,
blockIndex,
bindingIndex,
new OpenGLConstantBuffer(dataProvider),
dataProvider.DataSizeInBytes),
dataProvider);
bindingIndex += 1;
}
else
{
int uniformLocation = GL.GetUniformLocation(programID, element.Name);
if (uniformLocation == -1)
{
throw new InvalidOperationException($"No uniform or uniform block with name {element.Name} was found.");
}
_globalUniformBindings[i] = new GlobalBindingPair(
new UniformLocationBinding(
programID,
uniformLocation),
dataProvider);
}
}
int perObjectInputsCount = perObjectInputs.Elements.Length;
_perObjectBindings = new UniformBinding[perObjectInputsCount];
for (int i = 0; i < perObjectInputsCount; i++)
{
var element = perObjectInputs.Elements[i];
int blockIndex = GL.GetUniformBlockIndex(programID, element.Name);
if (blockIndex != -1)
{
_perObjectBindings[i] = new UniformBlockBinding(
programID,
blockIndex,
bindingIndex,
new OpenGLConstantBuffer(),
element.BufferSizeInBytes);
bindingIndex += 1;
}
else
{
int uniformLocation = GL.GetUniformLocation(programID, element.Name);
if (uniformLocation == -1)
{
throw new InvalidOperationException($"No uniform or uniform block with name {element.Name} was found.");
}
_perObjectBindings[i] = new UniformLocationBinding(
programID,
uniformLocation);
}
}
}
