added VKIndirectCommandBuffer.cpp and other codes.

src/SceneGraph/Vulkan/VKIndirectCommandBuffer.cpp

@@ -0,0 +1,45 @@
+#include<hgl/graph/VKIndirectCommandBuffer.h>
+#include<hgl/graph/VKDevice.h>
+
+VK_NAMESPACE_BEGIN
+
+bool GPUDevice::CreateIndirectCommandBuffer(DeviceBufferData *buf,const uint32_t cmd_count,const uint32_t cmd_size,SharingMode sharing_mode)
+{
+    const uint32_t size=cmd_count*cmd_size;
+
+    if(size<=0)return(false);
+
+    return CreateBuffer(buf,VK_BUFFER_USAGE_INDIRECT_BUFFER_BIT,size,size,nullptr,sharing_mode);
+}
+
+IndirectDrawBuffer *GPUDevice::CreateIndirectDrawBuffer(const uint32_t cmd_count,SharingMode sm)
+{
+    DeviceBufferData buf;
+        
+    if(!CreateIndirectCommandBuffer(&buf,cmd_count,sizeof(VkDrawIndirectCommand),sm))
+        return(nullptr);
+
+    return(new IndirectDrawBuffer(attr->device,buf,cmd_count));
+}
+
+IndirectDrawIndexedBuffer *GPUDevice::CreateIndirectDrawIndexedBuffer(const uint32_t cmd_count,SharingMode sm)
+{
+    DeviceBufferData buf;
+        
+    if(!CreateIndirectCommandBuffer(&buf,cmd_count,sizeof(VkDrawIndexedIndirectCommand),sm))
+        return(nullptr);
+
+    return(new IndirectDrawIndexedBuffer(attr->device,buf,cmd_count));
+}
+
+IndirectDispatchBuffer *GPUDevice::CreateIndirectDispatchBuffer(const uint32_t cmd_count,SharingMode sm)
+{
+    DeviceBufferData buf;
+        
+    if(!CreateIndirectCommandBuffer(&buf,cmd_count,sizeof(VkDispatchIndirectCommand),sm))
+        return(nullptr);
+
+    return(new IndirectDispatchBuffer(attr->device,buf,cmd_count));
+}
+
+VK_NAMESPACE_END