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[dxvk] Optimize format lookup for simple formats

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Philip Rebohle 2022-07-15 12:17:46 +02:00
parent cdf22a4086
commit fc525d5b70
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GPG Key ID: C8CC613427A31C99
2 changed files with 31 additions and 7 deletions
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4
src/dxvk/dxvk_format.cpp
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@ -7,7 +7,7 @@ namespace dxvk {
constexpr VkColorComponentFlags RG = VK_COLOR_COMPONENT_R_BIT | VK_COLOR_COMPONENT_G_BIT;
constexpr VkColorComponentFlags R = VK_COLOR_COMPONENT_R_BIT;
const std::array<DxvkFormatInfo, 152> g_formatInfos = {{
const std::array<DxvkFormatInfo, DxvkFormatCount> g_formatInfos = {{
// VK_FORMAT_UNDEFINED
{ },
@ -572,7 +572,7 @@ namespace dxvk {
}};
const DxvkFormatInfo* lookupFormatInfo(VkFormat format) {
const DxvkFormatInfo* lookupFormatInfoSlow(VkFormat format) {
uint32_t indexOffset = 0;
for (const auto& group : g_formatGroups) {

34
src/dxvk/dxvk_format.h
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@ -52,9 +52,33 @@ namespace dxvk {
/// Plane info for multi-planar formats
std::array<DxvkPlaneFormatInfo, 3> planes;
};
const DxvkFormatInfo* lookupFormatInfo(VkFormat format);
/// Number of formats defined in lookup table
constexpr size_t DxvkFormatCount = 152;
/// Format lookup table
extern const std::array<DxvkFormatInfo, DxvkFormatCount> g_formatInfos;
/**
* \brief Looks up format info
*
* \param [in] format Format to look up
* \returns Info for the given format
*/
const DxvkFormatInfo* lookupFormatInfoSlow(VkFormat format);
/**
* \brief Queries image format info
*
* Provides a fast path for the most common base formats.
* \param [in] format Format to look up
* \returns Info for the given format
*/
inline const DxvkFormatInfo* lookupFormatInfo(VkFormat format) {
if (likely(format <= VK_FORMAT_BC7_SRGB_BLOCK))
return &g_formatInfos[uint32_t(format)];
else
return lookupFormatInfo(format);
}
}