IMeshResourceFactory.h

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#pragma once
 
#include "common/Result.h"
 
#include <cstdint>
#include <span>
 
namespace eve::graphics {
 
class Mesh;
 
class IMeshResourceFactory {
public:
    virtual ~IMeshResourceFactory() = default;
 
    [[nodiscard]] virtual Result<Mesh*> uploadMesh(const float* posXYZ, const float* nrmXYZ,
                                                   const float* uvST, int vertexCount,
                                                   const std::uint32_t* indices,
                                                   int indexCount) = 0;
 
    [[nodiscard]] virtual Result<Mesh*> uploadMeshColored(const float*, const float*, const float*, const float*, int,
                                                          const std::uint32_t*, int) {
        return Result<Mesh*>::failure(Diagnostic::error(
            DiagnosticCode::Unsupported, "mesh provider does not support vertex colors"));
    }
 
    [[nodiscard]] virtual Result<void> setMeshTexcoords(Mesh*, std::uint32_t, std::span<const float>) {
        return Result<void>::failure(
            Diagnostic::error(DiagnosticCode::Unsupported, "mesh provider does not support additional UV streams"));
    }
    [[nodiscard]] virtual Result<void> setMeshTangentFrame(Mesh*, std::span<const float>, std::span<const float>) {
        return Result<void>::failure(
            Diagnostic::error(DiagnosticCode::Unsupported, "mesh provider does not support authored tangent frames"));
    }
 
    [[nodiscard]] virtual Result<void> releaseMesh(Mesh* mesh) = 0;
};
 
}  // namespace eve::graphics