d3d_tools.h

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/*
 * Dune D3D library - Tobias Alexander Franke 2011
 * For copyright and license see LICENSE
 * http://www.tobias-franke.eu
 */

#ifndef DUNE_D3D_TOOLS
#define DUNE_D3D_TOOLS

#include <D3D11.h>
#include <DirectXMath.h>

namespace dune
{
    class profile_query
    {
    protected:
        ID3D11Query* frequency_;
        ID3D11Query* start_;
        ID3D11Query* stop_;

        ID3D11DeviceContext* context_;

    public:
        profile_query();
        virtual ~profile_query() {}

        void create(ID3D11Device* device);

        void destroy();

        void begin(ID3D11DeviceContext* context);

        void end();

        float result();
    };

    template<typename T>
    void set_debug_name(T* obj, const CHAR* name)
    {
        if (obj)
            obj->SetPrivateData(WKPDID_D3DDebugObjectName, lstrlenA(name), name);
    }

    template<typename T>
    void safe_release(T& obj)
    {
        if (obj)
        {
            obj->Release();
            obj = nullptr;
        }
    }

    template<typename T>
    void exchange(T** oldv, T* newv)
    {
        if (!oldv)
            return;

        if (*oldv == newv)
            return;

        if (newv)
        {
            safe_release(*oldv);
            newv->AddRef();
            *oldv = newv;
        }
    }

    void set_viewport(ID3D11DeviceContext* context, size_t w, size_t h);

    /* \brief Create a new XMFLOAT3 containing only maximum values of a and b. */
    DirectX::XMFLOAT3 max(const DirectX::XMFLOAT3& a, const DirectX::XMFLOAT3& b);

    /* \brief Create a new XMFLOAT3 containing only minimum values of a and b. */
    DirectX::XMFLOAT3 min(const DirectX::XMFLOAT3& a, const DirectX::XMFLOAT3& b);

    /* \brief Returns true of a and b contain equal elements. */
    bool equal(const DirectX::XMFLOAT4& a, const DirectX::XMFLOAT4& b);

    void clear_rtvs(ID3D11DeviceContext* context,
                    ID3D11RenderTargetView** rtvs,
                    size_t num_rtvs,
                    FLOAT* clear_color);

    bool is_srgb(ID3D11ShaderResourceView* rtv);

    bool is_srgb(DXGI_FORMAT f);

    void assert_hr_detail(const HRESULT& hr, const char* file, DWORD line, const char* msg);

    #define assert_hr(x) assert_hr_detail(x, __FILE__, __LINE__, #x)
}

#endif