add example program LoadStaticMesh

CMSceneGraph

@@ -1 +1 @@
-Subproject commit bf7152aee5cffa219c6675c03d1e075b9c98c3bf
+Subproject commit 7c4583fa5b670c67f45d457f3ea2696a29f3819f

example/Vulkan/CMakeLists.txt

@@ -18,6 +18,7 @@ CreateProject(05.HQFilterTexture HQFilterTexture.cpp)
 CreateProject(06.Geometry2D Geometry2D.cpp)
 CreateProject(07.Geometry3D Geometry3D.cpp)
 CreateProject(08.SceneTree SceneTree.cpp)
+CreateProject(09.LoadStaticMesh LoadStaticMesh.cpp LoadScene.cpp)
 CreateProject(10.InlineGeometryScene InlineGeometryScene.cpp)
 CreateProject(11.Atomsphere Atomsphere.cpp)
 #CreateProject(12.PBRBasic PBRBasic.cpp)

example/Vulkan/LoadScene.cpp

@@ -0,0 +1,224 @@
+#include<hgl/graph/data/SceneNodeData.h>
+#include<hgl/graph/NTB.h>
+#include<hgl/filesystem/FileSystem.h>
+#include<hgl/log/LogInfo.h>
+
+namespace hgl
+{
+    namespace graph
+    {
+        namespace
+        {
+            constexpr char FILE_HEADER_STRING[]="StaticMesh\x1A";
+            constexpr uint FILE_HEADER_STRLEN=sizeof(FILE_HEADER_STRING)-1;
+        }//namespace
+
+        namespace
+        {
+            struct LoadModelData
+            {
+                const uint8 *sp;
+                ModelData *md;
+
+            private:
+
+                bool CheckFileHeader()
+                {
+                    if(memcmp(sp,FILE_HEADER_STRING,FILE_HEADER_STRLEN))     //比较文件头
+                        return(false);
+
+                    sp+=FILE_HEADER_STRLEN;
+
+                    md->version=*sp++;
+
+                    if(md->version!=1)
+                        return(false);
+
+                    LOG_INFO(OS_TEXT("Load StaticMesh file begin, ver:")+OSString::valueOf(version));
+                    return(true);
+                }
+
+                bool LoadMeshNames(const uint32 mesh_count)
+                {
+                    uint8 len;
+                    UTF8String str;
+
+                    const uint32 total_bytes=*(uint32 *)sp;
+                    sp+=sizeof(uint32);
+
+                    for(uint32 i=0;i<mesh_count;i++)
+                    {
+                        len=*sp++;
+
+                        str.SetString((char *)sp,len);
+
+                        md->mesh_name.Add(str);
+
+                        LOG_INFO(U8_TEXT("\tMesh ")+UTF8String::valueOf(i)+U8_TEXT(" : ")+str);
+
+                        sp+=len;
+                    }
+
+                    return(true);
+                }
+
+                void Load(AABB &box)
+                {
+                    box.minPoint.x=*(float *)sp;sp+=sizeof(float);
+                    box.minPoint.y=*(float *)sp;sp+=sizeof(float);
+                    box.minPoint.z=*(float *)sp;sp+=sizeof(float);
+                    box.maxPoint.x=*(float *)sp;sp+=sizeof(float);
+                    box.maxPoint.y=*(float *)sp;sp+=sizeof(float);
+                    box.maxPoint.z=*(float *)sp;sp+=sizeof(float);
+                }
+
+                bool LoadMesh(MeshData *mesh)
+                {
+                    LOG_INFO(U8_TEXT("Load Mesh ")+UTF8String::valueOf(mesh->index)+U8_TEXT(" : ")+md->mesh_name[mesh->index]);
+
+                    mesh->ntb=*sp++;
+
+                    mesh->vertex_count=*(uint32 *)sp;
+                    sp+=sizeof(uint32);
+                    
+                    LOG_INFO(OS_TEXT("\tVertex: ")+OSString::valueOf(mesh->vertex_count));
+
+                    mesh->position=(float *)sp;
+                    sp+=sizeof(float)*mesh->vertex_count;
+
+                    if(mesh->ntb&NTB_BIT_NORMAL)
+                    {
+                        mesh->normal=(float *)sp;
+                        sp+=sizeof(float)*mesh->vertex_count;
+
+                        LOG_INFO(OS_TEXT("\thas normal"));
+                    }
+
+                    if(mesh->ntb&NTB_BIT_TANGENT)
+                    {
+                        mesh->tangent=(float *)sp;
+                        sp+=sizeof(float)*mesh->vertex_count;
+
+                        LOG_INFO(OS_TEXT("\thas tangent"));
+                    }
+
+                    if(mesh->ntb&NTB_BIT_BINORMAL)
+                    {
+                        mesh->binormal=(float *)sp;
+                        sp+=sizeof(float)*mesh->vertex_count;
+
+                        LOG_INFO(OS_TEXT("\thas bitangent/binormal"));
+                    }
+
+                    {
+                        mesh->color_count=*sp++;
+                        LOG_INFO(OS_TEXT("\tColor: ")+OSString::valueOf(mesh->vertex_count));
+
+                        mesh->colors=new uint8 *[mesh->color_count];
+                        for(uint i=0;i<mesh->color_count;i++)
+                        {
+                            mesh->colors[i]=(uint8 *)sp;
+                            sp+=4*mesh->vertex_count;
+                        }
+                    }
+
+                    {
+                        mesh->uv_count=*sp++;
+                        LOG_INFO(OS_TEXT("\tUV: ")+OSString::valueOf(mesh->uv_count));
+                        mesh->uv_component=sp;
+                        sp+=mesh->uv_count;
+
+                        mesh->uv=new float *[mesh->uv_count];
+                        for(uint i=0;i<mesh->uv_count;i++)
+                        {
+                            mesh->uv[i]=(float *)sp;
+                            sp+=sizeof(float)*mesh->uv_component[i]*mesh->vertex_count;
+
+                            LOG_INFO(OS_TEXT("\t\tUV ")+OSString::valueOf(i)+OS_TEXT(" : ")+OSString::valueOf(mesh->uv_component[i]));
+                        }
+                    }
+
+                    {
+                        mesh->indices_count=*(uint32 *)sp;
+                        sp+=sizeof(uint32);
+
+                        LOG_INFO(OS_TEXT("\tFaces: ")+OSString::valueOf(mesh->indices_count/3));
+
+                        mesh->indices=(void *)sp;
+                        
+                        if(mesh->vertex_count>0xFFFF)
+                            sp+=sizeof(uint32)*mesh->indices_count;
+                        else
+                            sp+=sizeof(uint16)*mesh->indices_count;
+                    }
+
+                    Load(mesh->bounding_box);
+                    return(true);
+                }
+
+            public:
+
+                LoadModelData(uint8 *source,const uint8 *s)
+                {
+                    sp=s;
+                    md=new ModelData;
+                    md->source_filedata=(uint8 *)source;
+                }
+
+                bool Load()
+                {
+                    if(!CheckFileHeader())
+                        return(false);
+
+                    const uint32 mesh_count=*(uint32 *)sp;
+                    sp+=sizeof(uint32);
+
+                    LOG_INFO(OS_TEXT("Mesh Count: ")+OSString::valueOf(mesh_count));
+
+                    if(!LoadMeshNames(mesh_count))
+                        return(false);
+
+                    for(uint32 i=0;i<mesh_count;i++)
+                    {
+                        MeshData *mesh=new MeshData;
+
+                        mesh->index=i;
+
+                        if(!LoadMesh(mesh))
+                        {
+                            delete mesh;
+                            return(false);
+                        }
+
+                        md->mesh_list.Add(mesh);
+                    }
+
+                    return(true);
+                }
+            };//struct LoadModelData
+        }//namespace
+
+        ModelData *LoadModelFromFile(const OSString &filename)
+        {
+            if(filename.IsEmpty())
+                return(nullptr);
+
+            int64 filelength;
+            uint8 *filedata=(uint8 *)filesystem::LoadFileToMemory(filename,filelength);
+            const uint8 *sp=filedata;
+
+            if(!filedata)
+                return(nullptr);
+
+            LoadModelData lmd(filedata,sp);
+
+            if(!lmd.Load())
+            {
+                delete lmd.md;
+                return nullptr;
+            }
+
+            return(lmd.md);
+        }
+    }//namespace graph
+}//namespace hgl

example/Vulkan/LoadStaticMesh.cpp

@@ -5,17 +5,25 @@
 #include<hgl/filesystem/FileSystem.h>
 #include<hgl/graph/InlineGeometry.h>
 #include<hgl/graph/RenderableInstance.h>
-
-#include"AssimpLoaderMesh.h"
 #include<hgl/graph/VertexBuffer.h>
 
+#include<hgl/graph/data/SceneNodeData.h>
+
+namespace hgl
+{
+    namespace graph
+    {
+        ModelData *LoadModelFromFile(const OSString &filename);
+    }
+}
+
 using namespace hgl;
 using namespace hgl::graph;
 
 constexpr uint32_t SCREEN_WIDTH=128;
 constexpr uint32_t SCREEN_HEIGHT=128;
 
-vulkan::Renderable *CreateMeshRenderable(SceneDB *db,vulkan::Material *mtl,const MeshData *mesh)
+/*vulkan::Renderable *CreateMeshRenderable(SceneDB *db,vulkan::Material *mtl,const MeshData *mesh)
 {
     const vulkan::VertexShaderModule *vsm=mtl->GetVertexShaderModule();
 
@@ -243,22 +251,19 @@ public:
         return(true);
     }
 };//class TestApp:public ViewModelFramework
+*/
 
-#ifdef _WIN32
-int wmain(int argc,wchar_t **argv)
-#else
-int main(int argc,char **argv)
-#endif//
+int os_main(const int argc,const os_char **argv)
 {
-    TestApp app;
+    //TestApp app;
 
-    ModelData *model_data=AssimpLoadModel(argv[1]);
+    ModelData *model_data=LoadModelFromFile(argv[1]);
 
     if(!model_data)
         return -1;
 
-    if(app.Init(model_data))
-        while(app.Run());
+    //if(app.Init(model_data))
+    //    while(app.Run());
 
     if(model_data)
         delete model_data;

inc/hgl/graph/data/MeshData.h

@@ -0,0 +1,66 @@
+#ifndef HGL_GRAPH_MESH_DATA_INCLUDE
+#define HGL_GRAPH_MESH_DATA_INCLUDE
+
+#include<hgl/type/DataType.h>
+#include<hgl/math/Math.h>
+
+namespace hgl
+{
+    namespace graph
+    {        
+        struct MeshData
+        {
+            int index;
+            uint32 vertex_count;            ///<顶点数量
+
+            uint8 ntb;
+
+            float *position;
+            float *normal;
+            float *tangent;
+
+            union
+            {
+                float *bitangent;
+                float *binormal;
+            };
+
+            uint32 color_count;
+            uint8 **colors;
+
+            uint32 uv_count;
+            const uint8 *uv_component;
+            float **uv;
+
+            uint32 indices_count;
+
+            union
+            {
+                void *indices;
+                uint16 *indices16;
+                uint32 *indices32;
+            };
+            
+            AABB bounding_box;
+
+        public:
+
+            MeshData()
+            {
+                hgl_zero(this,sizeof(MeshData));
+
+                index=-1;
+            }
+
+            ~MeshData()
+            {
+                if(colors)
+                    delete[] colors;
+
+                if(uv)
+                    delete[] uv;
+            }
+        };//struct MeshData
+    }//namespace graph
+}//namespace hgl
+#endif//HGL_GRAPH_MESH_DATA_INCLUDE

inc/hgl/graph/data/SceneNodeData.h

@@ -0,0 +1,45 @@
+#ifndef HGL_GRAPH_SCENE_NODE_DATA_INCLUDE
+#define HGL_GRAPH_SCENE_NODE_DATA_INCLUDE
+
+#include<hgl/graph/data/MeshData.h>
+#include<hgl/type/StringList.h>
+
+namespace hgl
+{
+    namespace graph
+    {        
+        struct SceneNodeData
+        {
+            UTF8String name;
+
+            Matrix4f local_matrix;
+
+            List<uint32> mesh_index;
+
+            ObjectList<SceneNodeData> sub_nodes;
+        };//struct SceneNodeData
+
+        struct ModelData
+        {
+            uint8 *source_filedata=nullptr;
+
+            uint8 version=0;
+
+            UTF8StringList mesh_name;
+            ObjectList<MeshData> mesh_list;
+            
+            SceneNodeData *root_node=nullptr;
+
+            AABB bounding_box;
+
+        public:
+
+            ~ModelData()
+            {
+                SAFE_CLEAR(root_node);
+                delete[] source_filedata;
+            }
+        };//struct ModelData
+    }//namespace graph
+}//namespace hgl
+#endif//HGL_GRAPH_SCENE_NODE_DATA_INCLUDE