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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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16
src/common/vulkan/shader_cache.cpp
View File

@ -105,11 +105,11 @@ bool ShaderCache::CacheIndexKey::operator!=(const CacheIndexKey& key) const
source_length != key.source_length || shader_type != key.shader_type);
}
void ShaderCache::Create(std::string_view base_path, bool debug)
void ShaderCache::Create(std::string_view base_path, u32 version, bool debug)
{
Assert(!g_vulkan_shader_cache);
g_vulkan_shader_cache.reset(new ShaderCache());
g_vulkan_shader_cache->Open(base_path, debug);
g_vulkan_shader_cache->Open(base_path, debug, version);
}
void ShaderCache::Destroy()
@ -117,8 +117,9 @@ void ShaderCache::Destroy()
g_vulkan_shader_cache.reset();
}
void ShaderCache::Open(std::string_view base_path, bool debug)
void ShaderCache::Open(std::string_view base_path, u32 version, bool debug)
{
m_version = version;
m_debug = debug;
if (!base_path.empty())
@ -175,6 +176,7 @@ bool ShaderCache::CreateNewShaderCache(const std::string& index_filename, const
FillPipelineCacheHeader(&header);
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 ||
std::fwrite(&header, sizeof(header), 1, m_index_file) != 1)
{
Log_ErrorPrintf("Failed to write header to index file '%s'", index_filename.c_str());
@ -203,10 +205,12 @@ bool ShaderCache::ReadExistingShaderCache(const std::string& index_filename, con
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;

7
src/common/vulkan/shader_cache.h
View File

@ -18,7 +18,7 @@ class ShaderCache
public:
~ShaderCache();
static void Create(std::string_view base_path, bool debug);
static void Create(std::string_view base_path, u32 version, bool debug);
static void Destroy();
/// Returns a handle to the pipeline cache. Set set_dirty to true if you are planning on writing to it externally.
@ -36,7 +36,7 @@ public:
VkShaderModule GetComputeShader(std::string_view shader_code);
private:
static constexpr u32 FILE_VERSION = 1;
static constexpr u32 FILE_VERSION = 2;
struct CacheIndexKey
{
@ -73,7 +73,7 @@ private:
static std::string GetPipelineCacheBaseFileName(const std::string_view& base_path, bool debug);
static CacheIndexKey GetCacheKey(ShaderCompiler::Type type, const std::string_view& shader_code);
void Open(std::string_view base_path, bool debug);
void Open(std::string_view base_path, u32 version, bool debug);
bool CreateNewShaderCache(const std::string& index_filename, const std::string& blob_filename);
bool ReadExistingShaderCache(const std::string& index_filename, const std::string& blob_filename);
@ -93,6 +93,7 @@ private:
CacheIndex m_index;
VkPipelineCache m_pipeline_cache = VK_NULL_HANDLE;
u32 m_version = 0;
bool m_debug = false;
bool m_pipeline_cache_dirty = false;
};