Shader增加UBO binding记录和获取

example/Vulkan/CMakeLists.txt

@@ -26,7 +26,7 @@ SET(VULKAN_TEST_SOURCE_FILES	main.cpp
 								VKSemaphore.cpp
 								VKFramebuffer.cpp
 								VKFence.cpp
-								VKMaterial.cpp
+								#VKMaterial.cpp
 							 )
 
 SET(VULKAN_TEST_HEADER_FILES	VK.h

example/Vulkan/FlatColor.vert

@@ -3,10 +3,10 @@
 layout(location = 0) in vec2 Vertex;
 layout(location = 1) in vec3 Color;
 
-layout(binding = 0) uniform MVPMatrix
+layout(binding = 0) uniform WorldConfig
 {
-    mat4 MVP;
+    mat4 mvp;
-} ubo;
+} world;
 
 layout(location = 0) out vec4 FragmentColor;
 
@@ -14,5 +14,5 @@ void main()
 {
     FragmentColor=vec4(Color,1.0);
 
-    gl_Position=vec4(Vertex,0.0,1.0)*ubo.MVP;
+    gl_Position=vec4(Vertex,0.0,1.0)*world.mvp;
 }

example/Vulkan/VKMaterial.cpp

@@ -5,19 +5,23 @@
 VK_NAMESPACE_BEGIN
 Material::~Material()
 {
-    delete dsl_creater;
     delete shader;
 }
 
 MaterialInstance *Material::CreateInstance()
 {
-    VertexAttributeBinding *vab=shader->CreateVertexAttributeBinding();
+    return(new MaterialInstance(this));
+}
 
-    return(new MaterialInstance(this,vab));
+MaterialInstance::MaterialInstance(Material *m)
+{
+    mat=m;
+    vab=->CreateVertexAttributeBinding();
 }
 
 MaterialInstance::~MaterialInstance()
 {
     delete vab;
+    delete dsl_creater;
 }
 VK_NAMESPACE_END

example/Vulkan/VKMaterial.h

@@ -3,6 +3,7 @@
 
 #include"VK.h"
 VK_NAMESPACE_BEGIN
+class Device;
 class Shader;
 class DescriptorSetLayoutCreater;
 class MaterialInstance;
@@ -14,15 +15,15 @@ class VertexAttributeBinding;
  */
 class Material
 {
+    Device *device;
     Shader *shader;
-    DescriptorSetLayoutCreater *dsl_creater;
 
 public:
 
-    Material(Shader *s,DescriptorSetLayoutCreater *dslc)
+    Material(Device *dev,Shader *s)
     {
+        device=dev;
         shader=s;
-        dsl_creater=dslc;
     }
     ~Material();
 
@@ -36,16 +37,12 @@ public:
 class MaterialInstance
 {
     const Material *mat;                                                                            ///<这里的是对material的完全引用，不做任何修改
-    VertexAttributeBinding *vab;                                                         ///<这里的vis是Material中vis的复制体
+    VertexAttributeBinding *vab;
+    DescriptorSetLayoutCreater *dsl_creater;
 
 public:
 
-    MaterialInstance(Material *m,VertexAttributeBinding *vi)
+    MaterialInstance(Material *m);
-    {
-        mat=m;
-        vab=vi;
-    }
-
     ~MaterialInstance();
 };//class MaterialInstance
 VK_NAMESPACE_END

example/Vulkan/VKShader.cpp

@@ -81,6 +81,14 @@ bool Shader::ParseVertexShader(const void *spv_data,const uint32_t spv_size)
         ++binding_index;
     }
 
+    for(auto &ub:res.uniform_buffers)
+    {
+        const UTF8String &  name    =comp.get_name(ub.id).c_str();        
+        const uint          binding =comp.get_decoration(ub.id,spv::DecorationBinding);
+
+        ubo_list.Add(name,binding);
+    }
+
     return(true);
 }
 

example/Vulkan/VKShader.h

@@ -22,6 +22,7 @@ private:
     VkVertexInputAttributeDescription *attribute_list;
 
     Map<UTF8String,VkVertexInputAttributeDescription *> stage_input_locations;
+    Map<UTF8String,int> ubo_list;
 
     Set<VertexAttributeBinding *> vab_sets;
 
@@ -61,6 +62,8 @@ public: //shader部分
     const uint32_t                          GetStageCount    ()const{return shader_stage_list.GetCount();}
     const VkPipelineShaderStageCreateInfo * GetShaderStages   ()const{return shader_stage_list.GetData();}
 
+    const int                                   GetUBO(const UTF8String &name)const{int binding;if(ubo_list.Get(name,binding))return binding;else return -1;}
+
 public: //Vertex Input部分
 
     VertexAttributeBinding *                    CreateVertexAttributeBinding();

example/Vulkan/main.cpp

@@ -29,10 +29,10 @@ constexpr uint32_t SCREEN_HEIGHT=720;
 VkShaderModule vs=nullptr;
 VkShaderModule fs=nullptr;
 
-struct
+struct WorldConfig
 {
     Matrix4f mvp;    
-}ubo_vs;
+}world;
 
 char *LoadFile(const char *filename,uint32_t &file_length)
 {
@@ -86,16 +86,16 @@ vulkan::Buffer *CreateUBO(vulkan::Device *dev)
     {
         const VkExtent2D extent=dev->GetExtent();
 
-        ubo_vs.mvp=ortho(extent.width,extent.height);
+        world.mvp=ortho(extent.width,extent.height);
     }
 
-    vulkan::Buffer *ubo=dev->CreateUBO(sizeof(ubo_vs));
+    vulkan::Buffer *ubo=dev->CreateUBO(sizeof(WorldConfig));
 
     uint8_t *p=ubo->Map();
 
     if(p)
     {
-        memcpy(p,&ubo_vs,sizeof(ubo_vs));
+        memcpy(p,&world,sizeof(WorldConfig));
         ubo->Unmap();
     }
 
@@ -196,13 +196,13 @@ int main(int,char **)
 
     vulkan::DescriptorSetLayoutCreater dslc(device);
 
-    const int mvp_binding=0;    //shader->GetBinding("MVPMatrix");          实现从材质shader文件中根据名称获取binding的功能
+    const int ubo_world_config=shader->GetUBO("world");
 
-    dslc.BindUBO(mvp_binding,VK_SHADER_STAGE_VERTEX_BIT);
+    dslc.BindUBO(ubo_world_config,VK_SHADER_STAGE_VERTEX_BIT);
 
     vulkan::DescriptorSetLayout *dsl=dslc.Create();
 
-    dsl->UpdateUBO(mvp_binding,*ubo);
+    dsl->UpdateUBO(ubo_world_config,*ubo);
 
     vulkan::PipelineLayout *pl=CreatePipelineLayout(*device,dsl);