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graphics: compact shader keys and hash packed pipeline state

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This commit is contained in:
nmzik
2026-09-29 03:40:03 +04:00
parent 5e4f6afc30
commit 0fbeac6d3f
4 changed files with 49 additions and 47 deletions
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src/graphics/host_gpu/renderer/pipeline/pipelineCache.cpp
+28 -2
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@@ -165,6 +165,32 @@ bool ValidateShaderSpirv(const char* label, uint64_t shader_hash,
} // namespace
std::size_t PipelineCache::GraphicsPipelineKeyHash::operator()(const GraphicsPipelineKey& key) const {
std::size_t hash = 0;
PipelineKeyHash::Mix(hash, key.rendering.color_count);
for (uint32_t i = 0; i < key.rendering.color_count; i++) {
PipelineKeyHash::Mix(hash, static_cast<uint32_t>(key.rendering.color_formats[i]));
}
PipelineKeyHash::Mix(hash, static_cast<uint32_t>(key.rendering.depth_format));
PipelineKeyHash::Mix(hash, static_cast<uint32_t>(key.rendering.stencil_format));
for (const auto id: key.vertex_shader_ids) {
PipelineKeyHash::Mix(hash, id);
}
PipelineKeyHash::Mix(hash, key.ps_shader_id);
PipelineKeyHash::Mix(hash, key.vertex_input.binding_count);
for (uint32_t i = 0; i < key.vertex_input.binding_count; i++) {
PipelineKeyHash::Mix(hash, key.vertex_input.bindings[i].stride);
PipelineKeyHash::Mix(hash, key.vertex_input.bindings[i].instance);
}
PipelineKeyHash::Mix(hash, key.vertex_input.attribute_count);
for (uint32_t i = 0; i < key.vertex_input.attribute_count; i++) {
PipelineKeyHash::Mix(hash, key.vertex_input.attributes[i].offset);
PipelineKeyHash::Mix(hash, key.vertex_input.attributes[i].binding);
}
PipelineKeyHash::Mix(hash, XXH3_64bits(&key.static_params, sizeof(key.static_params)));
return hash;
}
struct PipelineCache::ProgramCache {
struct ProgramKey {
ShaderType stage = ShaderType::Unknown;
@@ -206,12 +232,12 @@ struct PipelineCache::ProgramCache {
PipelineKeyHash::Mix(hash, key.code_size);
PipelineKeyHash::Mix(hash, key.static_state.size());
// Bucket same-shape static variants by source. ProgramKey equality performs the one
// exact state comparison needed on a stable hit without hashing up to 429 words first.
// exact state comparison needed on a stable hit without hashing the full state first.
return hash;
}
};
static constexpr std::size_t MaxStaticKeyWords = 13 + ShaderVertexInputInfo::RES_MAX * 13;
static constexpr std::size_t MaxStaticKeyWords = 32 + ShaderVertexInputInfo::RES_MAX * 6;
Permutation CompilePermutation(const char* stage_name,
const ShaderRecompiler::CompileOptions& options,