upstream-archive/stable-diffusion.cpp
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feat: add Krea2OstrisEdit support (#1775)

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stduhpf
2026-07-11 11:37:01 +02:00
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parent 1b042838d9
commit c79d24bdbd
3 changed files with 161 additions and 27 deletions
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35
src/conditioning/conditioner.hpp
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@@ -2141,6 +2141,41 @@ struct LLMEmbedder : public Conditioner {
out_layers = {2, 5, 8, 11, 14, 17, 20, 23, 26, 29, 32, 35};
prompt = "<|im_start|>system\nDescribe the image by detailing the color, shape, size, texture, quantity, text, spatial relationships of the objects and background:<|im_end|>\n<|im_start|>user\n";
if (llm->enable_vision && conditioner_params.ref_images != nullptr && !conditioner_params.ref_images->empty()) {
std::string img_prompt = "";
const std::string placeholder = "<|image_pad|>";
for (int i = 0; i < conditioner_params.ref_images->size(); i++) {
const auto& image = (*conditioner_params.ref_images)[i];
double factor = llm->config.vision.patch_size * llm->config.vision.spatial_merge_size;
int height = static_cast<int>(image.shape()[1]);
int width = static_cast<int>(image.shape()[0]);
double beta = std::sqrt((384.0 * 384.0) / (static_cast<double>(height) * static_cast<double>(width)));
int h_bar = std::max(static_cast<int>(factor),
static_cast<int>(std::round(height * beta / factor)) * static_cast<int>(factor));
int w_bar = std::max(static_cast<int>(factor),
static_cast<int>(std::round(width * beta / factor)) * static_cast<int>(factor));
LOG_DEBUG("resize conditioner ref image %d from %dx%d to %dx%d", i, height, width, h_bar, w_bar);
auto resized_image = clip_preprocess(image, w_bar, h_bar);
auto image_embed = llm->encode_image(n_threads, resized_image, false, true, true);
GGML_ASSERT(!image_embed.empty());
std::string image_prefix = prompt + img_prompt + "Picture " + std::to_string(i + 1) + ": <|vision_start|>";
int image_embed_idx = static_cast<int>(tokenizer->encode(image_prefix, nullptr).size());
image_embeds.emplace_back(image_embed_idx, image_embed);
img_prompt += "Picture " + std::to_string(i + 1) + ": <|vision_start|>";
int64_t num_image_tokens = image_embed.shape()[1];
img_prompt.reserve(img_prompt.size() + static_cast<size_t>(num_image_tokens) * placeholder.size() + 32);
for (int j = 0; j < num_image_tokens; j++) {
img_prompt += placeholder;
}
img_prompt += "<|vision_end|>";
}
prompt += img_prompt;
}
prompt_attn_range.first = static_cast<int>(prompt.size());
prompt += conditioner_params.text;