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Vulkan: Support native compressed textures

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This commit is contained in:
Stenzek
2017-04-16 22:23:33 +10:00
parent 3f18c5e0f1
commit c53a60f3c3
6 changed files with 145 additions and 67 deletions
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80
Source/Core/VideoBackends/Vulkan/Util.cpp
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@ -53,6 +53,20 @@ bool IsDepthFormat(VkFormat format)
}
}
bool IsCompressedFormat(VkFormat format)
{
switch (format)
{
case VK_FORMAT_BC1_RGBA_UNORM_BLOCK:
case VK_FORMAT_BC2_UNORM_BLOCK:
case VK_FORMAT_BC3_UNORM_BLOCK:
return true;
default:
return false;
}
}
VkFormat GetLinearFormat(VkFormat format)
{
switch (format)
@ -74,6 +88,25 @@ VkFormat GetLinearFormat(VkFormat format)
}
}
VkFormat GetVkFormatForHostTextureFormat(HostTextureFormat format)
{
switch (format)
{
case HostTextureFormat::DXT1:
return VK_FORMAT_BC1_RGBA_UNORM_BLOCK;
case HostTextureFormat::DXT3:
return VK_FORMAT_BC2_UNORM_BLOCK;
case HostTextureFormat::DXT5:
return VK_FORMAT_BC3_UNORM_BLOCK;
case HostTextureFormat::RGBA8:
default:
return VK_FORMAT_R8G8B8A8_UNORM;
}
}
u32 GetTexelSize(VkFormat format)
{
// Only contains pixel formats we use.
@ -91,12 +124,59 @@ u32 GetTexelSize(VkFormat format)
case VK_FORMAT_B8G8R8A8_UNORM:
return 4;
case VK_FORMAT_BC1_RGBA_UNORM_BLOCK:
return 8;
case VK_FORMAT_BC2_UNORM_BLOCK:
case VK_FORMAT_BC3_UNORM_BLOCK:
return 16;
default:
PanicAlert("Unhandled pixel format");
return 1;
}
}
u32 GetBlockSize(VkFormat format)
{
switch (format)
{
case VK_FORMAT_BC1_RGBA_UNORM_BLOCK:
case VK_FORMAT_BC2_UNORM_BLOCK:
case VK_FORMAT_BC3_UNORM_BLOCK:
return 4;
default:
return 1;
}
}
size_t GetPitchForTexture(VkFormat format, u32 row_length)
{
switch (format)
{
case VK_FORMAT_BC1_RGBA_UNORM_BLOCK:
return static_cast<size_t>(std::max(1u, row_length / 4)) * 8;
case VK_FORMAT_BC2_UNORM_BLOCK:
return static_cast<size_t>(std::max(1u, row_length / 4)) * 16;
case VK_FORMAT_BC3_UNORM_BLOCK:
return static_cast<size_t>(std::max(1u, row_length / 4)) * 16;
case VK_FORMAT_R8G8B8A8_UNORM:
case VK_FORMAT_B8G8R8A8_UNORM:
case VK_FORMAT_R32_SFLOAT:
case VK_FORMAT_D32_SFLOAT:
return static_cast<size_t>(row_length) * 4;
default:
PanicAlert("Unhandled pixel format");
return row_length;
}
}
VkRect2D ClampRect2D(const VkRect2D& rect, u32 width, u32 height)
{
VkRect2D out;