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supported uint8_index_type

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This commit is contained in:
hyzboy 2024-04-19 00:40:51 +08:00
parent 2bc6246dc0
commit 8633a18e01
5 changed files with 54 additions and 1 deletions
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8
inc/hgl/graph/VK.h
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@ -138,8 +138,9 @@ inline const uint32_t GetMipLevel(const VkExtent3D &ext)
/**
* 索引类型,等同于VkIndexType
*/
enum IndexType:uint
enum IndexType:int
{
AUTO=-1,
U16=0,
U32,
U8=VK_INDEX_TYPE_UINT8_EXT,
@ -147,6 +148,11 @@ enum IndexType:uint
ERR=VK_INDEX_TYPE_MAX_ENUM
};
inline const bool IsIndexType(const IndexType it)
{
return it>=U16&&it<=U8;
}
//Push Constant max-lengths:
//
// 256 bytes: nvidia,arm

3
inc/hgl/graph/VKDevice.h
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@ -117,6 +117,9 @@ public: //Buffer相关
VBO * CreateVBO (VkFormat format, uint32_t count,const void *data, SharingMode sm=SharingMode::Exclusive);
VBO * CreateVBO (VkFormat format, uint32_t count, SharingMode sm=SharingMode::Exclusive){return CreateVBO(format,count,nullptr,sm);}
const IndexType GetIndexType(const VkDeviceSize &vertex_count)const; ///<求一个合适的索引类型
const bool CheckIndexType(const IndexType,const VkDeviceSize &vertex_count)const; ///<检测一个索引类型是否合适
IndexBuffer * CreateIBO (IndexType type, uint32_t count,const void * data, SharingMode sm=SharingMode::Exclusive);
IndexBuffer * CreateIBO8 ( uint32_t count,const void * data, SharingMode sm=SharingMode::Exclusive){return CreateIBO(IndexType::U8, count,(void *)data,sm);}
IndexBuffer * CreateIBO16 ( uint32_t count,const uint16 *data, SharingMode sm=SharingMode::Exclusive){return CreateIBO(IndexType::U16, count,(void *)data,sm);}

2
inc/hgl/graph/VKDeviceAttribute.h
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@ -39,6 +39,8 @@ struct GPUDeviceAttribute
VkSurfaceTransformFlagBitsKHR preTransform;
VkCompositeAlphaFlagBitsKHR compositeAlpha =VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR;
bool uint8_index_type=false;
VkDevice device =VK_NULL_HANDLE;
VkCommandPool cmd_pool =VK_NULL_HANDLE;

24
src/SceneGraph/Vulkan/VKDeviceBuffer.cpp
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@ -77,6 +77,30 @@ VBO *GPUDevice::CreateVBO(VkFormat format,uint32_t count,const void *data,Sharin
return(new VertexAttribBuffer(attr->device,buf,format,stride,count));
}
const IndexType GPUDevice::GetIndexType(const VkDeviceSize &vertex_count)const
{
if(vertex_count<=0)return(IndexType::ERR);
if(attr->uint8_index_type&& vertex_count<=0xFF )return IndexType::U8; else
if( vertex_count<=0xFFFF)return IndexType::U16; else
if(attr->physical_device->SupportU32Index() )return IndexType::U32; else
return IndexType::ERR;
}
const bool GPUDevice::CheckIndexType(const IndexType it,const VkDeviceSize &vertex_count)const
{
if(vertex_count<=0)return(false);
if(it==IndexType::U16&&vertex_count<=0xFFFF)return(true);
if(it==IndexType::U32&&attr->physical_device->SupportU32Index())return(true);
if(it==IndexType::U8 &&vertex_count<=0xFF&&attr->uint8_index_type)return(true);
return(false);
}
IndexBuffer *GPUDevice::CreateIBO(IndexType index_type,uint32_t count,const void *data,SharingMode sharing_mode)
{
if(count==0)return(nullptr);

18
src/SceneGraph/Vulkan/VKDeviceCreater.cpp
View File

@ -229,6 +229,18 @@ VkDevice VulkanDeviceCreater::CreateDevice(const uint32_t graphics_family)
create_info.ppEnabledLayerNames =nullptr;
create_info.pEnabledFeatures =&features;
VkPhysicalDeviceIndexTypeUint8FeaturesEXT index_type_uint8_features;
if(physical_device->SupportU8Index()
&&require.fullDrawIndexUint8>=VulkanHardwareRequirement::SupportLevel::Want)
{
create_info.pNext=&index_type_uint8_features;
index_type_uint8_features.sType =VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_INDEX_TYPE_UINT8_FEATURES_EXT;
index_type_uint8_features.pNext =nullptr;
index_type_uint8_features.indexTypeUint8=VK_TRUE;
}
VkDevice device;
if(vkCreateDevice(*physical_device,&create_info,nullptr,&device)==VK_SUCCESS)
@ -300,6 +312,12 @@ GPUDevice *VulkanDeviceCreater::CreateRenderDevice()
ChooseSurfaceFormat();
if(physical_device->SupportU8Index()
&&require.fullDrawIndexUint8>=VulkanHardwareRequirement::SupportLevel::Want)
{
device_attr->uint8_index_type=true;
}
device_attr->surface_format=surface_format;
GetDeviceQueue(device_attr);