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improved GenerateMipmaps function.

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This commit is contained in:
hyzboy 2021-12-14 11:08:33 +08:00
parent 7c2af6788d
commit b2b625ef92
2 changed files with 15 additions and 11 deletions
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2
inc/hgl/graph/TextureLoader.h
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@ -45,7 +45,7 @@ namespace hgl
union
{
uint32 length; ///<长(1D纹理用)
uint32 width; ///<宽(2D/Cube纹理用)
uint32 width; ///<宽(2D/3D/Cube纹理用)
};
uint32 height; ///<高(2D/3D/Cube纹理用)

24
src/SceneGraph/Vulkan/VKDeviceTexture.cpp
View File

@ -56,7 +56,7 @@ namespace
}
};//
void GenerateMipmaps(TextureCmdBuffer *texture_cmd_buf,VkImage image,VkImageAspectFlags aspect_mask,const int32_t width,const int32_t height,const uint32_t mipLevels)
void GenerateMipmaps(TextureCmdBuffer *texture_cmd_buf,VkImage image,VkImageAspectFlags aspect_mask,VkExtent3D extent,const uint32_t mipLevels)
{
//VkImage image, VkFormat imageFormat, int32_t texWidth, int32_t texHeight, uint32_t mipLevels) {
// Check if image format supports linear blitting
@ -71,8 +71,11 @@ namespace
barrier.subresourceRange.layerCount = 1;
barrier.subresourceRange.levelCount = 1;
int32_t mipWidth = width;
int32_t mipHeight = height;
VkImageBlit blit;
int32_t width =extent.width;
int32_t height =extent.height;
int32_t depth =extent.depth;
for (uint32_t i = 1; i < mipLevels; i++)
{
@ -88,15 +91,19 @@ namespace
0, nullptr,
1, &barrier);
VkImageBlit blit{};
blit.srcOffsets[0] = {0, 0, 0};
blit.srcOffsets[1] = {mipWidth, mipHeight, 1};
blit.srcOffsets[1] = {width,height,depth};
blit.srcSubresource.aspectMask = aspect_mask;
blit.srcSubresource.mipLevel = i - 1;
blit.srcSubresource.baseArrayLayer = 0;
blit.srcSubresource.layerCount = 1;
if(width >1)width >>=1;
if(height>1)height>>=1;
if(depth >1)depth >>=1;
blit.dstOffsets[0] = {0, 0, 0};
blit.dstOffsets[1] = { mipWidth > 1 ? mipWidth / 2 : 1, mipHeight > 1 ? mipHeight / 2 : 1, 1 };
blit.dstOffsets[1] = {width,height,depth};
blit.dstSubresource.aspectMask = aspect_mask;
blit.dstSubresource.mipLevel = i;
blit.dstSubresource.baseArrayLayer = 0;
@ -118,9 +125,6 @@ namespace
0, nullptr,
0, nullptr,
1, &barrier);
if (mipWidth > 1) mipWidth /= 2;
if (mipHeight > 1) mipHeight /= 2;
}
barrier.subresourceRange.baseMipLevel = mipLevels - 1;
@ -223,7 +227,7 @@ Texture2D *GPUDevice::CreateTexture2D(TextureCreateInfo *tci)
if(tci->origin_mipmaps<=1) //本身不含mipmaps数据,又想要mipmaps
{
CommitTexture2D(tex,tci->buffer,tci->extent.width,tci->extent.height,tex_data->miplevel,VK_PIPELINE_STAGE_TRANSFER_BIT);
GenerateMipmaps(texture_cmd_buf,tex->GetImage(),tex->GetAspect(),tex->GetWidth(),tex->GetHeight(),tex_data->miplevel);
GenerateMipmaps(texture_cmd_buf,tex->GetImage(),tex->GetAspect(),tci->extent,tex_data->miplevel);
}
texture_cmd_buf->End();