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ShaderCache: Add a data version field

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We can increment this to prevent people's shader caches from growing too
large with shader changes.
This commit is contained in:
Connor McLaughlin
2021-01-11 14:50:25 +10:00
parent 97971464d1
commit fd166a4485
14 changed files with 56 additions and 29 deletions
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14
src/common/d3d11/shader_cache.cpp
View File

@ -42,9 +42,10 @@ bool ShaderCache::CacheIndexKey::operator!=(const CacheIndexKey& key) const
source_length != key.source_length || shader_type != key.shader_type);
}
void ShaderCache::Open(std::string_view base_path, D3D_FEATURE_LEVEL feature_level, bool debug)
void ShaderCache::Open(std::string_view base_path, D3D_FEATURE_LEVEL feature_level, u32 version, bool debug)
{
m_feature_level = feature_level;
m_version = version;
m_debug = debug;
if (!base_path.empty())
@ -79,7 +80,8 @@ bool ShaderCache::CreateNew(const std::string& index_filename, const std::string
}
const u32 index_version = FILE_VERSION;
if (std::fwrite(&index_version, sizeof(index_version), 1, m_index_file) != 1)
if (std::fwrite(&index_version, sizeof(index_version), 1, m_index_file) != 1 ||
std::fwrite(&m_version, sizeof(m_version), 1, m_index_file) != 1)
{
Log_ErrorPrintf("Failed to write version to index file '%s'", index_filename.c_str());
std::fclose(m_index_file);
@ -107,10 +109,12 @@ bool ShaderCache::ReadExisting(const std::string& index_filename, const std::str
if (!m_index_file)
return false;
u32 file_version;
if (std::fread(&file_version, sizeof(file_version), 1, m_index_file) != 1 || file_version != FILE_VERSION)
u32 file_version = 0;
u32 data_version = 0;
if (std::fread(&file_version, sizeof(file_version), 1, m_index_file) != 1 || file_version != FILE_VERSION ||
std::fread(&data_version, sizeof(data_version), 1, m_index_file) != 1 || data_version != m_version)
{
Log_ErrorPrintf("Bad file version in '%s'", index_filename.c_str());
Log_ErrorPrintf("Bad file/data version in '%s'", index_filename.c_str());
std::fclose(m_index_file);
m_index_file = nullptr;
return false;

8
src/common/d3d11/shader_cache.h
View File

@ -21,7 +21,7 @@ public:
ShaderCache();
~ShaderCache();
void Open(std::string_view base_path, D3D_FEATURE_LEVEL feature_level, bool debug);
void Open(std::string_view base_path, D3D_FEATURE_LEVEL feature_level, u32 version, bool debug);
ComPtr<ID3DBlob> GetShaderBlob(ShaderCompiler::Type type, std::string_view shader_code);
@ -31,7 +31,7 @@ public:
ComPtr<ID3D11ComputeShader> GetComputeShader(ID3D11Device* device, std::string_view shader_code);
private:
static constexpr u32 FILE_VERSION = 1;
static constexpr u32 FILE_VERSION = 2;
struct CacheIndexKey
{
@ -62,7 +62,8 @@ private:
using CacheIndex = std::unordered_map<CacheIndexKey, CacheIndexData, CacheIndexEntryHasher>;
static std::string GetCacheBaseFileName(const std::string_view& base_path, D3D_FEATURE_LEVEL feature_level, bool debug);
static std::string GetCacheBaseFileName(const std::string_view& base_path, D3D_FEATURE_LEVEL feature_level,
bool debug);
static CacheIndexKey GetCacheKey(ShaderCompiler::Type type, const std::string_view& shader_code);
bool CreateNew(const std::string& index_filename, const std::string& blob_filename);
@ -77,6 +78,7 @@ private:
CacheIndex m_index;
D3D_FEATURE_LEVEL m_feature_level = D3D_FEATURE_LEVEL_11_0;
u32 m_version = 0;
bool m_debug = false;
};