alphard/stable-diffusion.cpp
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fix: support more SDXL LoRA names (#216)

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* apply pmid lora only once for multiple txt2img calls

* add better support for SDXL LoRA

* fix for some sdxl lora, like lcm-lora-xl

---------

Co-authored-by: bssrdf <bssrdf@gmail.com>
Co-authored-by: leejet <leejet714@gmail.com>
This commit is contained in:
bssrdf 2024-04-06 05:12:03 -04:00 committed by GitHub
parent 646e77638e
commit afea457eda
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GPG Key ID: B5690EEEBB952194
4 changed files with 33 additions and 20 deletions
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3
examples/cli/main.cpp
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@ -699,8 +699,7 @@ int main(int argc, const char* argv[]) {
3 /*RGB channel*/, STBIR_ALPHA_CHANNEL_NONE, 0,
STBIR_EDGE_CLAMP, STBIR_EDGE_CLAMP,
STBIR_FILTER_BOX, STBIR_FILTER_BOX,
STBIR_COLORSPACE_SRGB, nullptr
);
STBIR_COLORSPACE_SRGB, nullptr);
// Save resized result
free(input_image_buffer);

11
lora.hpp
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@ -91,10 +91,15 @@ struct LoraModel : public GGMLModule {
k_tensor = k_tensor.substr(0, k_pos);
replace_all_chars(k_tensor, '.', '_');
// LOG_DEBUG("k_tensor %s", k_tensor.c_str());
if (k_tensor == "model_diffusion_model_output_blocks_2_2_conv") { // fix for SDXL
k_tensor = "model_diffusion_model_output_blocks_2_1_conv";
}
std::string lora_up_name = "lora." + k_tensor + ".lora_up.weight";
if (lora_tensors.find(lora_up_name) == lora_tensors.end()) {
if (k_tensor == "model_diffusion_model_output_blocks_2_2_conv") {
// fix for some sdxl lora, like lcm-lora-xl
k_tensor = "model_diffusion_model_output_blocks_2_1_conv";
lora_up_name = "lora." + k_tensor + ".lora_up.weight";
}
}
std::string lora_down_name = "lora." + k_tensor + ".lora_down.weight";
std::string alpha_name = "lora." + k_tensor + ".alpha";
std::string scale_name = "lora." + k_tensor + ".scale";

17
model.cpp
View File

@ -211,6 +211,8 @@ std::string convert_sdxl_lora_name(std::string tensor_name) {
{"unet", "model_diffusion_model"},
{"te2", "cond_stage_model_1_transformer"},
{"te1", "cond_stage_model_transformer"},
{"text_encoder_2", "cond_stage_model_1_transformer"},
{"text_encoder", "cond_stage_model_transformer"},
};
for (auto& pair_i : sdxl_lora_name_lookup) {
if (tensor_name.compare(0, pair_i.first.length(), pair_i.first) == 0) {
@ -446,18 +448,25 @@ std::string convert_tensor_name(const std::string& name) {
} else {
new_name = name;
}
} else if (contains(name, "lora_up") || contains(name, "lora_down") || contains(name, "lora.up") || contains(name, "lora.down")) {
} else if (contains(name, "lora_up") || contains(name, "lora_down") ||
contains(name, "lora.up") || contains(name, "lora.down") ||
contains(name, "lora_linear")) {
size_t pos = new_name.find(".processor");
if (pos != std::string::npos) {
new_name.replace(pos, strlen(".processor"), "");
}
pos = new_name.find_last_of('_');
pos = new_name.rfind("lora");
if (pos != std::string::npos) {
std::string name_without_network_parts = new_name.substr(0, pos);
std::string network_part = new_name.substr(pos + 1);
std::string name_without_network_parts = new_name.substr(0, pos - 1);
std::string network_part = new_name.substr(pos);
// LOG_DEBUG("%s %s", name_without_network_parts.c_str(), network_part.c_str());
std::string new_key = convert_diffusers_name_to_compvis(name_without_network_parts, '.');
new_key = convert_sdxl_lora_name(new_key);
replace_all_chars(new_key, '.', '_');
size_t npos = network_part.rfind("_linear_layer");
if (npos != std::string::npos) {
network_part.replace(npos, strlen("_linear_layer"), "");
}
if (starts_with(network_part, "lora.")) {
network_part = "lora_" + network_part.substr(5);
}