/// <summary>
/// Prepare the shader specialization state for quick binding lookups.
/// </summary>
/// <param name="stages">The shader stages</param>
public void Prepare(CachedShaderStage[] stages)
{
_allTextures = _textureSpecialization.ToArray();
_textureByBinding = new Box <TextureSpecializationState> [stages.Length][];
_imageByBinding = new Box <TextureSpecializationState> [stages.Length][];
for (int i = 0; i < stages.Length; i++)
{
CachedShaderStage stage = stages[i];
if (stage?.Info != null)
{
var textures = stage.Info.Textures;
var images = stage.Info.Images;
var texBindings = new Box <TextureSpecializationState> [textures.Count];
var imageBindings = new Box <TextureSpecializationState> [images.Count];
int stageIndex = Math.Max(i - 1, 0); // Don't count VertexA for looking up spec state. No-Op for compute.
for (int j = 0; j < textures.Count; j++)
{
var texture = textures[j];
texBindings[j] = GetTextureSpecState(stageIndex, texture.HandleIndex, texture.CbufSlot);
}
for (int j = 0; j < images.Count; j++)
{
var image = images[j];
imageBindings[j] = GetTextureSpecState(stageIndex, image.HandleIndex, image.CbufSlot);
}
_textureByBinding[i] = texBindings;
_imageByBinding[i] = imageBindings;
}
}
}
public TranslatedShaderVertexPair(CachedShaderStage vertexA, CachedShaderStage vertexB, ShaderProgram program)
{
VertexA = vertexA;
VertexB = vertexB;
Program = program;
}
public TranslatedShader(CachedShaderStage shader, ShaderProgram program)
{
Shader = shader;
Program = program;
}
