GTexture.h

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#pragma once
 
#include "RE/G/GAtomic.h"
#include "RE/G/GImage.h"
#include "RE/G/GNewOverrideBase.h"
#include "RE/G/GPoint.h"
#include "RE/G/GRect.h"
 
namespace RE
{
    class GImageBase;
    class GRenderer;
 
    class GTexture : public GNewOverrideBase<GStatRenderer::kMem>
    {
    public:
        using Handle = void*;
 
        enum class MapFlags
        {
            kNone = 0,
            kKeepOld = 1
        };
 
        enum class ImageTexUsage
        {
            kWrap = 1 << 0,
            kUpdate = 1 << 4,
            kMap = 1 << 5,
            kRenderTarget = 1 << 6
        };
 
        struct UpdateRect
        {
        public:
            // members
            GPoint<std::int32_t> dest;  // 00
            GRect<std::int32_t>  src;   // 08
        };
        static_assert(sizeof(UpdateRect) == 0x18);
 
        struct MapRect
        {
        public:
            // members
            std::uint32_t width;   // 00
            std::uint32_t height;  // 04
            std::uint8_t* data;    // 08
            std::uint32_t pitch;   // 10
            std::uint32_t pad14;   // 14
        };
        static_assert(sizeof(MapRect) == 0x18);
 
        class ChangeHandler
        {
        public:
            enum class EventType
            {
                kDataChange,
                kDataLost,
                kRendererReleased
            };
 
            virtual ~ChangeHandler() = default;  // 00
 
            // add
            virtual void OnChange(GRenderer* a_renderer, EventType a_changeType);  // 01
            virtual bool Recreate(GRenderer* a_renderer);                          // 02
        };
        static_assert(sizeof(ChangeHandler) == 0x8);
 
        virtual ~GTexture() = default;  // 00
 
        // add
        virtual bool                     InitTexture(GImageBase* a_im, ImageTexUsage a_usage = ImageTexUsage::kWrap) = 0;                                                                   // 01
        virtual bool                     InitDynamicTexture(std::int32_t a_width, std::int32_t a_height, GImage::ImageFormat a_format, std::int32_t a_mipmaps, ImageTexUsage a_usage) = 0;  // 02
        virtual void                     Update(std::int32_t a_level, std::int32_t a_num, const UpdateRect* a_rects, const GImageBase* a_im) = 0;                                           // 03
        virtual std::int32_t             Map(std::int32_t a_level, std::int32_t a_num, MapRect* a_maps, MapFlags a_flags = MapFlags::kNone) = 0;                                            // 04
        virtual bool                     Unmap(std::int32_t a_level, std::int32_t a_num, MapRect* a_maps, MapFlags a_flags = MapFlags::kNone) = 0;                                          // 05
        [[nodiscard]] virtual GRenderer* GetRenderer() const = 0;                                                                                                                           // 06
        [[nodiscard]] virtual bool       IsDataValid() const = 0;                                                                                                                           // 07
        [[nodiscard]] virtual Handle     GetUserData() const = 0;                                                                                                                           // 08
        virtual void                     SetUserData(Handle a_data) = 0;                                                                                                                    // 09
        virtual void                     AddChangeHandler(ChangeHandler* a_handler) = 0;                                                                                                    // 0A
        virtual void                     RemoveChangeHandler(ChangeHandler* a_handler) = 0;                                                                                                 // 0B
 
        // members
        GAtomicInt<std::int32_t> refCount;  // 08
    };
}