建档

source/EngineFrame/Render/Texture.cpp

@@ -0,0 +1,83 @@
+#include "EngineFrame/Render/Texture.h"
+#include "Asset/Asset_ImagePack.h"
+#include "EngineCore/Game.h"
+#include "Texture.h"
+
+Texture::Texture()
+{
+}
+
+Texture::Texture(std::string PngPath)
+{
+    SDL_Surface *surface = IMG_Load(PngPath.c_str());
+    if (!surface)
+    {
+        SDL_Log("无法加载图片: %s", SDL_GetError());
+        return;
+    }
+
+    m_texture = SDL_CreateTextureFromSurface(Game::GetInstance().GetRenderer(), surface);
+    if (!m_texture)
+    {
+        SDL_Log("无法创建纹理: %s", SDL_GetError());
+        SDL_FreeSurface(surface); // 记得释放surface
+        return;
+    }
+
+    this->TextureSize.width = surface->w;
+    this->TextureSize.height = surface->h;
+    this->TextureFramepos.width = surface->w;
+    this->TextureFramepos.height = surface->h;
+    SDL_FreeSurface(surface);
+}
+
+Texture::Texture(std::string imgPath, int Index)
+{
+    Asset_ImagePack::IMG *Info = Asset_ImagePack::GetInstance().GetIMG(imgPath);
+    if (Info->lpImgName == "sprite/interface/base.img")
+        return;
+    Asset_ImagePack::ImgInfo &Buf = Info->lp_lplist[Index];
+
+    m_texture = SDL_CreateTexture(
+        Game::GetInstance().GetRenderer(),
+        SDL_PIXELFORMAT_ARGB8888, // 匹配RGBA数据格式
+        SDL_TEXTUREACCESS_STREAMING,
+        Buf.Width, Buf.Height);
+    if (!m_texture)
+    {
+        SDL_Log("纹理创建失败: %s", SDL_GetError());
+    }
+    int pitch = Buf.Width * 4;
+    SDL_UpdateTexture(m_texture, NULL, Buf.PNGdata, pitch);
+    SDL_SetTextureBlendMode(m_texture, SDL_BLENDMODE_BLEND);
+    SDL_SetTextureScaleMode(m_texture, SDL_ScaleModeBest);
+
+    this->TexturePos.x = Buf.Xpos;
+    this->TexturePos.y = Buf.Ypos;
+    this->TextureSize.width = Buf.Width;
+    this->TextureSize.height = Buf.Height;
+    this->TextureFramepos.width = Buf.FrameXpos;
+    this->TextureFramepos.height = Buf.FrameYpos;
+}
+
+Texture::~Texture()
+{
+    SDL_DestroyTexture(m_texture);
+}
+
+SDL_Texture *Texture::GetTexture()
+{
+    return m_texture;
+}
+
+void Texture::SetBlendMode(SDL_BlendMode blendMode)
+{
+    SDL_SetTextureBlendMode(m_texture, blendMode);
+}
+
+SDL_BlendMode Texture::GetBlendMode()
+{
+    SDL_BlendMode blendMode;
+    SDL_GetTextureBlendMode(m_texture, &blendMode);
+    return blendMode;
+}

source/EngineFrame/Render/Texture.h

@@ -0,0 +1,29 @@
+#pragma once
+
+#include <SDL.h>
+#include <string>
+#include "Tool/RefPtr.h"
+#include "Tool/RefObject.h"
+
+class Texture : public RefObject
+{
+private:
+    SDL_Texture *m_texture = nullptr;
+
+public:
+    VecSize TextureSize = {0, 0};     // 纹理大小
+    VecPos TexturePos = {0, 0};       // 纹理位置
+    VecSize TextureFramepos = {0, 0}; // 帧域宽高
+
+public:
+    Texture(/* args */);
+    Texture(std::string PngPath);
+    Texture(std::string imgPath, int Index);
+    ~Texture();
+
+public:
+    void SetBlendMode(SDL_BlendMode blendMode);
+    // 获取混合模式
+    SDL_BlendMode GetBlendMode();
+    SDL_Texture *GetTexture(); // 获取纹理
+};