codes layout

inc/hgl/graph/VKTextureLoader.h

@@ -0,0 +1,97 @@
+#ifndef HGL_GRAPH_VULKAN_TEXTURE_LOADER_INCLUDE
+#define HGL_GRAPH_VULKAN_TEXTURE_LOADER_INCLUDE
+
+#include<hgl/graph/TextureLoader.h>
+
+VK_NAMESPACE_BEGIN
+template<typename T,typename L>
+class VkTextureLoader:public L
+{
+protected:
+
+    GPUDevice *device;
+    GPUBuffer *buf;
+
+    T *tex;
+
+    bool auto_mipmaps;
+
+public:
+
+    VkTextureLoader(GPUDevice *dev,const bool am)
+    {
+        device      =dev;
+        buf         =nullptr;
+        tex         =nullptr;
+        auto_mipmaps=am;
+    }
+
+    virtual ~VkTextureLoader()
+    {
+        SAFE_CLEAR(buf);
+        SAFE_CLEAR(tex);
+    }
+
+    T *GetTexture()
+    {
+        T *result=tex;
+        tex=nullptr;
+        return result;
+    }
+
+    void *OnBegin(uint32 total_bytes) override
+    {
+        SAFE_CLEAR(buf);
+        SAFE_CLEAR(tex);
+
+        if(!CheckVulkanFormat(format))
+            return(nullptr);
+
+        buf=device->CreateBuffer(VK_BUFFER_USAGE_TRANSFER_SRC_BIT,total_bytes);
+
+        if(!buf)
+            return(nullptr);
+
+        return buf->Map();
+    }
+
+    void OnEnd() override
+    {
+        buf->Unmap();
+
+        TextureCreateInfo *tci=new TextureCreateInfo(format);
+
+        tci->type=type;
+
+        VkExtent3D extent;
+        
+        extent.width    =file_header.width;
+        extent.height   =file_header.height;
+        extent.depth    =file_header.depth;
+
+        tci->SetData(buf,extent);
+
+        if(auto_mipmaps&&file_header.mipmaps<=1)
+        {
+            if(device->CheckFormatSupport(format,VK_FORMAT_FEATURE_BLIT_DST_BIT))
+            {
+                tci->usage|=VK_IMAGE_USAGE_TRANSFER_SRC_BIT;
+                tci->SetAutoMipmaps();
+            }
+        }
+        else
+        {
+            tci->origin_mipmaps=
+            tci->target_mipmaps=file_header.mipmaps;
+        }
+
+        tci->mipmap_zero_total_bytes=mipmap_zero_total_bytes;
+
+        tex=device->CreateTexture2D(tci);
+
+        if(tex)
+            buf=nullptr;
+    }
+};//class VkTextureLoader:public L
+VK_NAMESPACE_END
+#endif//HGL_GRAPH_VULKAN_TEXTURE_LOADER_INCLUDE