1#pragma once
  2
  3#include "ggml.h"
  4#include "gguf.h"
  5#include "clip.h"
  6
  7#include <climits>
  8#include <cstdarg>
  9#include <cinttypes>
 10#include <string>
 11#include <map>
 12#include <sstream>
 13#include <vector>
 14#include <memory>
 15
 16// Internal header for clip.cpp
 17
 18#define MTMD_INTERNAL_HEADER
 19
 20#define KEY_FTYPE               "general.file_type"
 21#define KEY_NAME                "general.name"
 22#define KEY_DESCRIPTION         "general.description"
 23#define KEY_PROJ_TYPE           "clip.projector_type"
 24#define KEY_HAS_AUDIO_ENC       "clip.has_audio_encoder"
 25#define KEY_HAS_VISION_ENC      "clip.has_vision_encoder"
 26#define KEY_USE_GELU            "clip.use_gelu"
 27#define KEY_USE_SILU            "clip.use_silu"
 28
 29#define KEY_N_EMBD              "clip.%s.embedding_length"
 30#define KEY_N_FF                "clip.%s.feed_forward_length"
 31#define KEY_N_BLOCK             "clip.%s.block_count"
 32#define KEY_PROJ_DIM            "clip.%s.projection_dim"
 33#define KEY_N_HEAD              "clip.%s.attention.head_count"
 34#define KEY_LAYER_NORM_EPS      "clip.%s.attention.layer_norm_epsilon"
 35
 36// vision-specific
 37#define KEY_VISION_PROJ_TYPE    "clip.vision.projector_type" // for models with mixed modalities
 38#define KEY_IMAGE_SIZE          "clip.vision.image_size"
 39#define KEY_IMAGE_MIN_PIXELS    "clip.vision.image_min_pixels"
 40#define KEY_IMAGE_MAX_PIXELS    "clip.vision.image_max_pixels"
 41#define KEY_PREPROC_IMAGE_SIZE  "clip.vision.preproc_image_size"
 42#define KEY_PATCH_SIZE          "clip.vision.patch_size"
 43#define KEY_IMAGE_MEAN          "clip.vision.image_mean"
 44#define KEY_IMAGE_STD           "clip.vision.image_std"
 45#define KEY_FEATURE_LAYER       "clip.vision.feature_layer"
 46#define KEY_PROJ_SCALE_FACTOR   "clip.vision.projector.scale_factor"
 47#define KEY_SPATIAL_MERGE_SIZE  "clip.vision.spatial_merge_size"
 48#define KEY_IS_DEEPSTACK_LAYERS "clip.vision.is_deepstack_layers"
 49
 50#define KEY_MM_PATCH_MERGE_TYPE    "clip.vision.mm_patch_merge_type"
 51#define KEY_IMAGE_GRID_PINPOINTS   "clip.vision.image_grid_pinpoints"
 52#define KEY_IMAGE_CROP_RESOLUTION  "clip.vision.image_crop_resolution"
 53#define KEY_WIN_ATTN_PATTERN       "clip.vision.n_wa_pattern"
 54#define KEY_WIN_ATTN_LAYER_INDEXES "clip.vision.wa_layer_indexes"
 55#define KEY_ATTN_WINDOW_SIZE       "clip.vision.window_size"
 56#define KEY_MINICPMV_VERSION       "clip.minicpmv_version"
 57#define KEY_MINICPMV_QUERY_NUM     "clip.minicpmv_query_num"
 58
 59// audio-specific
 60#define KEY_AUDIO_PROJ_TYPE     "clip.audio.projector_type" // for models with mixed modalities
 61#define KEY_A_NUM_MEL_BINS      "clip.audio.num_mel_bins"
 62#define KEY_A_PROJ_STACK_FACTOR "clip.audio.projector.stack_factor"
 63
 64
 65//
 66// tensor name constants
 67//
 68
 69#define TN_POS_EMBD        "%s.position_embd.weight"
 70#define TN_CLASS_EMBD      "v.class_embd"
 71#define TN_PATCH_EMBD      "v.patch_embd.weight"  // not rename tensor with ".0" postfix for backwrad compat
 72#define TN_PATCH_EMBD_1    "v.patch_embd.weight.1"
 73#define TN_PATCH_BIAS      "v.patch_embd.bias"
 74#define TN_NORM_EMBD       "v.norm_embd.%s"
 75#define TN_ATTN_QKV        "%s.blk.%d.attn_qkv.%s"
 76#define TN_ATTN_K          "%s.blk.%d.attn_k.%s"
 77#define TN_ATTN_Q          "%s.blk.%d.attn_q.%s"
 78#define TN_ATTN_V          "%s.blk.%d.attn_v.%s"
 79#define TN_ATTN_OUTPUT     "%s.blk.%d.attn_out.%s"
 80#define TN_ATTN_K_NORM     "%s.blk.%d.attn_k_norm.%s"
 81#define TN_ATTN_Q_NORM     "%s.blk.%d.attn_q_norm.%s"
 82#define TN_FFN_DOWN        "%s.blk.%d.ffn_down.%s"
 83#define TN_FFN_GATE        "%s.blk.%d.ffn_gate.%s"
 84#define TN_FFN_UP          "%s.blk.%d.ffn_up.%s"
 85#define TN_FFN_GATE        "%s.blk.%d.ffn_gate.%s"
 86#define TN_LN_1            "%s.blk.%d.ln1.%s" // layer norm
 87#define TN_LN_2            "%s.blk.%d.ln2.%s" // layer norm
 88#define TN_LS_1            "%s.blk.%d.ls1.%s" // layer scale
 89#define TN_LS_2            "%s.blk.%d.ls2.%s" // layer scale
 90#define TN_LN_PRE          "%s.pre_ln.%s"
 91#define TN_LN_POST         "%s.post_ln.%s"
 92#define TN_LLAVA_PROJ      "mm.%d.%s"
 93#define TN_MM_UP           "mm.up.%s"
 94#define TN_MM_GATE         "mm.gate.%s"
 95#define TN_MM_DOWN         "mm.down.%s"
 96#define TN_MM_POST_NORM    "mm.post_norm.%s"
 97#define TN_MVLM_PROJ_MLP   "mm.model.mlp.%d.%s"
 98#define TN_MVLM_PROJ_BLOCK "mm.model.mb_block.%d.block.%d.%s"
 99#define TN_MVLM_PROJ_PEG   "mm.model.peg.%d.%s"
100#define TN_IMAGE_NEWLINE   "model.image_newline"
101#define TN_MM_INP_NORM     "mm.input_norm.weight"
102#define TN_MM_INP_NORM_B   "mm.input_norm.bias"
103#define TN_MM_INP_PROJ     "mm.input_projection.weight" // gemma3
104#define TN_MM_SOFT_EMB_N   "mm.soft_emb_norm.weight"    // gemma3
105#define TN_MM_PROJECTOR    "mm.model.fc.weight"         // idefics3
106#define TN_MM_PATCH_MERGER "mm.patch_merger.%s"         // mistral small 3.1, glm4v
107#define TN_TOK_IMG_BREAK   "v.token_embd.img_break"     // pixtral
108#define TN_TOK_GLM_BOI     "adapter.boi"                // glm-edge (these embeddings are not in text model)
109#define TN_TOK_GLM_EOI     "adapter.eoi"                // glm-edge (these embeddings are not in text model)
110#define TN_DEEPSTACK_NORM  "v.deepstack.%d.norm.%s"     // qwen3vl deepstack
111#define TN_DEEPSTACK_FC1   "v.deepstack.%d.fc1.%s"      // qwen3vl deepstack
112#define TN_DEEPSTACK_FC2   "v.deepstack.%d.fc2.%s"      // qwen3vl deepstack
113
114// mimicpmv
115#define TN_MINICPMV_POS_EMBD_K "resampler.pos_embed_k"
116#define TN_MINICPMV_QUERY      "resampler.query"
117#define TN_MINICPMV_PROJ       "resampler.proj.weight"
118#define TN_MINICPMV_KV_PROJ    "resampler.kv.weight"
119#define TN_MINICPMV_ATTN       "resampler.attn.%s.%s"
120#define TN_MINICPMV_LN         "resampler.ln_%s.%s"
121
122#define TN_GLM_ADAPER_CONV      "adapter.conv.%s"
123#define TN_GLM_ADAPTER_LINEAR   "adapter.linear.linear.%s"
124#define TN_GLM_ADAPTER_NORM_1   "adapter.linear.norm1.%s"
125#define TN_GLM_ADAPTER_D_H_2_4H "adapter.linear.dense_h_to_4h.%s"
126#define TN_GLM_ADAPTER_GATE     "adapter.linear.gate.%s"
127#define TN_GLM_ADAPTER_D_4H_2_H "adapter.linear.dense_4h_to_h.%s"
128
129// ultravox
130#define TN_CONV1D       "a.conv1d.%d.%s"
131#define TN_MM_AUDIO_MLP "mm.a.mlp.%d.%s"
132#define TN_MM_AUDIO_FC  "mm.a.fc.%s" // fully connected layer
133#define TN_MM_NORM_PRE  "mm.a.norm_pre.%s"
134#define TN_MM_NORM_MID  "mm.a.norm_mid.%s"
135
136// cogvlm
137#define TN_MM_POST_FC_NORM "mm.post_fc_norm.%s"
138#define TN_MM_H_TO_4H      "mm.up.%s"
139#define TN_MM_GATE         "mm.gate.%s"
140#define TN_MM_4H_TO_H      "mm.down.%s"
141#define TN_TOK_BOI         "v.boi"
142#define TN_TOK_EOI         "v.eoi"
143
144// (conformer) lfm2
145#define TN_PRE_ENCODE_OUT  "a.pre_encode.out.%s"
146#define TN_FFN_NORM        "%s.blk.%d.ffn_norm.%s"
147#define TN_FFN_NORM_1      "%s.blk.%d.ffn_norm_1.%s"
148#define TN_FFN_UP_1        "%s.blk.%d.ffn_up_1.%s"
149#define TN_FFN_DOWN_1      "%s.blk.%d.ffn_down_1.%s"
150#define TN_POS_BIAS_U      "%s.blk.%d.pos_bias_u"
151#define TN_POS_BIAS_V      "%s.blk.%d.pos_bias_v"
152#define TN_NORM_CONV       "%s.blk.%d.norm_conv.%s"
153#define TN_LINEAR_POS      "%s.blk.%d.linear_pos.%s"
154#define TN_CONV_DW         "%s.blk.%d.conv_dw.%s"
155#define TN_CONV_NORM       "%s.blk.%d.conv_norm.%s"
156#define TN_CONV_PW1        "%s.blk.%d.conv_pw1.%s"
157#define TN_CONV_PW2        "%s.blk.%d.conv_pw2.%s"
158
159// mobilenetv5 (gemma3n) definitions
160#define TN_MNV5_STEM_CONV        "v.conv_stem.conv.weight"
161#define TN_MNV5_STEM_BIAS        "v.conv_stem.conv.bias"
162#define TN_MNV5_STEM_BN          "v.conv_stem.bn.weight"
163
164// Stage 0 Block (Edge Residual)
165#define TN_MNV5_BLK_S0_EXP_W     "v.blk.%d.%d.conv_exp.weight"
166#define TN_MNV5_BLK_S0_BN1_W     "v.blk.%d.%d.bn1.weight"
167#define TN_MNV5_BLK_S0_PWL_W     "v.blk.%d.%d.conv_pwl.weight"
168#define TN_MNV5_BLK_S0_BN2_W     "v.blk.%d.%d.bn2.weight"
169
170// Stage 1+ Block (Universal Inverted Residual)
171#define TN_MNV5_BLK_DW_START_W   "v.blk.%d.%d.dw_start.conv.weight"
172#define TN_MNV5_BLK_DW_START_BN  "v.blk.%d.%d.dw_start.bn.weight"
173#define TN_MNV5_BLK_DW_MID_W     "v.blk.%d.%d.dw_mid.conv.weight"
174#define TN_MNV5_BLK_DW_MID_BN    "v.blk.%d.%d.dw_mid.bn.weight"
175#define TN_MNV5_BLK_PW_EXP_W     "v.blk.%d.%d.pw_exp.conv.weight"
176#define TN_MNV5_BLK_PW_EXP_BN    "v.blk.%d.%d.pw_exp.bn.weight"
177#define TN_MNV5_BLK_PW_PROJ_W    "v.blk.%d.%d.pw_proj.conv.weight"
178#define TN_MNV5_BLK_PW_PROJ_BN   "v.blk.%d.%d.pw_proj.bn.weight"
179#define TN_MNV5_BLK_LAYER_SCALE  "v.blk.%d.%d.layer_scale.gamma"
180
181// Attention Components
182#define TN_MNV5_ATTN_Q_W         "v.blk.%d.%d.attn.query.proj.weight"
183#define TN_MNV5_ATTN_K_W         "v.blk.%d.%d.attn.key.proj.weight"
184#define TN_MNV5_ATTN_V_W         "v.blk.%d.%d.attn.value.proj.weight"
185#define TN_MNV5_ATTN_O_W         "v.blk.%d.%d.attn.output.proj.weight"
186#define TN_MNV5_ATTN_K_DW        "v.blk.%d.%d.attn.key.down_conv.weight"
187#define TN_MNV5_ATTN_K_NORM      "v.blk.%d.%d.attn.key.norm.weight"
188#define TN_MNV5_ATTN_V_DW        "v.blk.%d.%d.attn.value.down_conv.weight"
189#define TN_MNV5_ATTN_V_NORM      "v.blk.%d.%d.attn.value.norm.weight"
190#define TN_MNV5_ATTN_NORM        "v.blk.%d.%d.norm.weight" // Block norm used in attn blocks
191
192// MSFA
193#define TN_MNV5_MSFA_FFN_EXP_W   "v.msfa.ffn.pw_exp.conv.weight"
194#define TN_MNV5_MSFA_FFN_EXP_BN  "v.msfa.ffn.pw_exp.bn.weight"
195#define TN_MNV5_MSFA_FFN_PROJ_W  "v.msfa.ffn.pw_proj.conv.weight"
196#define TN_MNV5_MSFA_FFN_PROJ_BN "v.msfa.ffn.pw_proj.bn.weight"
197#define TN_MNV5_MSFA_NORM        "v.msfa.norm.weight"
198
199
200// align x to upper multiple of n
201#define CLIP_ALIGN(x, n) ((((x) + (n) - 1) / (n)) * (n))
202
203// forward declaration
204// TODO: improve this later
205struct clip_ctx;
206
207enum projector_type {
208    PROJECTOR_TYPE_MLP,
209    PROJECTOR_TYPE_MLP_NORM,
210    PROJECTOR_TYPE_LDP,
211    PROJECTOR_TYPE_LDPV2,
212    PROJECTOR_TYPE_MINICPMV,
213    PROJECTOR_TYPE_GLM_EDGE,
214    PROJECTOR_TYPE_QWEN2VL,
215    PROJECTOR_TYPE_QWEN3VL,
216    PROJECTOR_TYPE_GEMMA3,
217    PROJECTOR_TYPE_GEMMA3NV,
218    PROJECTOR_TYPE_GEMMA3NA,
219    PROJECTOR_TYPE_IDEFICS3,
220    PROJECTOR_TYPE_PIXTRAL,
221    PROJECTOR_TYPE_QWEN25VL,
222    PROJECTOR_TYPE_ULTRAVOX,
223    PROJECTOR_TYPE_INTERNVL,
224    PROJECTOR_TYPE_LLAMA4,
225    PROJECTOR_TYPE_QWEN2A,
226    PROJECTOR_TYPE_GLMA,
227    PROJECTOR_TYPE_QWEN25O, // will be replaced by QWEN2A or QWEN25VL depending on clip_ctx
228    PROJECTOR_TYPE_VOXTRAL,
229    PROJECTOR_TYPE_MUSIC_FLAMINGO,
230    PROJECTOR_TYPE_LFM2,
231    PROJECTOR_TYPE_KIMIVL,
232    PROJECTOR_TYPE_LIGHTONOCR,
233    PROJECTOR_TYPE_COGVLM,
234    PROJECTOR_TYPE_JANUS_PRO,
235    PROJECTOR_TYPE_LFM2A,
236    PROJECTOR_TYPE_GLM4V,
237    PROJECTOR_TYPE_YOUTUVL,
238    PROJECTOR_TYPE_KIMIK25,
239    PROJECTOR_TYPE_UNKNOWN,
240};
241
242static std::map<projector_type, std::string> PROJECTOR_TYPE_NAMES = {
243    { PROJECTOR_TYPE_MLP,       "mlp" },
244    { PROJECTOR_TYPE_LDP,       "ldp" },
245    { PROJECTOR_TYPE_LDPV2,     "ldpv2"},
246    { PROJECTOR_TYPE_MINICPMV,  "resampler"},
247    { PROJECTOR_TYPE_GLM_EDGE,  "adapter"},
248    { PROJECTOR_TYPE_QWEN2VL,   "qwen2vl_merger"},
249    { PROJECTOR_TYPE_QWEN25VL,  "qwen2.5vl_merger"},
250    { PROJECTOR_TYPE_QWEN3VL,   "qwen3vl_merger"},
251    { PROJECTOR_TYPE_GEMMA3,    "gemma3"},
252    { PROJECTOR_TYPE_GEMMA3NV,  "gemma3nv"},
253    { PROJECTOR_TYPE_GEMMA3NA,  "gemma3na"},
254    { PROJECTOR_TYPE_IDEFICS3,  "idefics3"},
255    { PROJECTOR_TYPE_PIXTRAL,   "pixtral"},
256    { PROJECTOR_TYPE_ULTRAVOX,  "ultravox"},
257    { PROJECTOR_TYPE_INTERNVL,  "internvl"},
258    { PROJECTOR_TYPE_LLAMA4,    "llama4"},
259    { PROJECTOR_TYPE_QWEN2A,    "qwen2a"},
260    { PROJECTOR_TYPE_GLMA,      "glma"},
261    { PROJECTOR_TYPE_QWEN25O,   "qwen2.5o"},
262    { PROJECTOR_TYPE_VOXTRAL,   "voxtral"},
263    { PROJECTOR_TYPE_MUSIC_FLAMINGO, "musicflamingo"},
264    { PROJECTOR_TYPE_LFM2,      "lfm2"},
265    { PROJECTOR_TYPE_KIMIVL,    "kimivl"},
266    { PROJECTOR_TYPE_LIGHTONOCR,"lightonocr"},
267    { PROJECTOR_TYPE_COGVLM,    "cogvlm"},
268    { PROJECTOR_TYPE_JANUS_PRO, "janus_pro"},
269    { PROJECTOR_TYPE_LFM2A,     "lfm2a"},
270    { PROJECTOR_TYPE_GLM4V,     "glm4v"},
271    { PROJECTOR_TYPE_YOUTUVL,   "youtuvl"},
272    { PROJECTOR_TYPE_KIMIK25,   "kimik25"},
273};
274
275static projector_type clip_projector_type_from_string(const std::string & str) {
276    for (const auto & pair : PROJECTOR_TYPE_NAMES) {
277        if (pair.second == str) {
278            return pair.first;
279        }
280    }
281    return PROJECTOR_TYPE_UNKNOWN;
282}
283
284// RGB uint8 image
285struct clip_image_u8 {
286    int nx;
287    int ny;
288
289    std::vector<uint8_t> buf;
290};
291
292// For images, buf.size() == nx*ny*3
293//     Memory layout: RGBRGBRGB...
294// For audio, only one channel is used, buf.size() == nx*ny
295//     nx will be n_frames and ny will be n_mel
296struct clip_image_f32 {
297    int nx;
298    int ny;
299
300    std::vector<float> buf;
301};
302
303//
304// logging
305//
306
307static void clip_log_callback_default(enum ggml_log_level level, const char * text, void * user_data) {
308    (void) level;
309    (void) user_data;
310    fputs(text, stderr);
311    fflush(stderr);
312}
313
314struct clip_logger_state {
315    ggml_log_callback log_callback;
316    void * log_callback_user_data;
317};
318
319extern struct clip_logger_state g_logger_state;
320
321static void clip_log_internal_v(enum ggml_log_level level, const char * format, va_list args) {
322    if (format == NULL) {
323        return;
324    }
325    va_list args_copy;
326    va_copy(args_copy, args);
327    char buffer[128];
328    int len = vsnprintf(buffer, 128, format, args);
329    if (len < 128) {
330        g_logger_state.log_callback(level, buffer, g_logger_state.log_callback_user_data);
331    } else {
332        char * buffer2 = (char *) calloc(len + 1, sizeof(char));
333        vsnprintf(buffer2, len + 1, format, args_copy);
334        buffer2[len] = 0;
335        g_logger_state.log_callback(level, buffer2, g_logger_state.log_callback_user_data);
336        free(buffer2);
337    }
338    va_end(args_copy);
339}
340
341static void clip_log_internal(enum ggml_log_level level, const char * format, ...) {
342    va_list args;
343    va_start(args, format);
344    clip_log_internal_v(level, format, args);
345    va_end(args);
346}
347
348#define LOG_INF(...) clip_log_internal(GGML_LOG_LEVEL_INFO,  __VA_ARGS__)
349#define LOG_WRN(...) clip_log_internal(GGML_LOG_LEVEL_WARN,  __VA_ARGS__)
350#define LOG_ERR(...) clip_log_internal(GGML_LOG_LEVEL_ERROR, __VA_ARGS__)
351#define LOG_DBG(...) clip_log_internal(GGML_LOG_LEVEL_DEBUG, __VA_ARGS__)
352#define LOG_CNT(...) clip_log_internal(GGML_LOG_LEVEL_CONT,  __VA_ARGS__)
353
354//
355// cpp wrappers
356//
357
358// wrapper for clip_image_size
359struct clip_image_size_deleter {
360    void operator()(clip_image_size * val) { clip_image_size_free(val); }
361};
362typedef std::unique_ptr<clip_image_size, clip_image_size_deleter> clip_image_size_ptr;
363
364// wrapper for clip_image_u8
365struct clip_image_u8_deleter {
366    void operator()(clip_image_u8 * val) { clip_image_u8_free(val); }
367};
368typedef std::unique_ptr<clip_image_u8, clip_image_u8_deleter> clip_image_u8_ptr;
369
370// wrapper for clip_image_f32
371struct clip_image_f32_deleter {
372    void operator()(clip_image_f32 * val) { clip_image_f32_free(val); }
373};
374typedef std::unique_ptr<clip_image_f32, clip_image_f32_deleter> clip_image_f32_ptr;
375
376struct clip_image_u8_batch {
377    std::vector<clip_image_u8_ptr> entries;
378};
379
380struct clip_image_f32_batch {
381    std::vector<clip_image_f32_ptr> entries;
382    bool is_audio = false;
383
384    // for llava-uhd style models, we need to know the grid size
385    // note: entries.size() == grid_x * grid_y + 1 (one overview image)
386    int grid_x = 0;
387    int grid_y = 0;
388
389    clip_image_f32_batch clone() const {
390        clip_image_f32_batch new_batch{
391            /* entries  */ {},
392            /* is_audio */ is_audio,
393            /* grid_x   */ grid_x,
394            /* grid_y   */ grid_y,
395        };
396        new_batch.entries.reserve(entries.size());
397        for (const auto & entry : entries) {
398            new_batch.entries.emplace_back(new clip_image_f32(*entry));
399        }
400        return new_batch;
401    }
402};
403
404//
405// common utils
406//
407
408static std::string string_format(const char * fmt, ...) {
409    va_list ap;
410    va_list ap2;
411    va_start(ap, fmt);
412    va_copy(ap2, ap);
413    int size = vsnprintf(NULL, 0, fmt, ap);
414    GGML_ASSERT(size >= 0 && size < INT_MAX); // NOLINT
415    std::vector<char> buf(size + 1);
416    int size2 = vsnprintf(buf.data(), size + 1, fmt, ap2);
417    GGML_ASSERT(size2 == size);
418    va_end(ap2);
419    va_end(ap);
420    return std::string(buf.data(), buf.size());
421}
422
423static void string_replace_all(std::string & s, const std::string & search, const std::string & replace) {
424    if (search.empty()) {
425        return;
426    }
427    std::string builder;
428    builder.reserve(s.length());
429    size_t pos = 0;
430    size_t last_pos = 0;
431    while ((pos = s.find(search, last_pos)) != std::string::npos) {
432        builder.append(s, last_pos, pos - last_pos);
433        builder.append(replace);
434        last_pos = pos + search.length();
435    }
436    builder.append(s, last_pos, std::string::npos);
437    s = std::move(builder);
438}
439
440// split string by a `std::string delim` instead of `char delim`
441static std::vector<std::string> string_split_str(std::string s, const std::string & delimiter) {
442    std::vector<std::string> tokens;
443    size_t pos = 0;
444    std::string token;
445    while ((pos = s.find(delimiter)) != std::string::npos) {
446        token = s.substr(0, pos);
447        tokens.push_back(token);
448        s.erase(0, pos + delimiter.length());
449    }
450    tokens.push_back(s);
451    return tokens;
452}
453
454//
455// gguf utils
456//
457
458static std::string gguf_data_to_str(enum gguf_type type, const void * data, int i) {
459    switch (type) {
460        case GGUF_TYPE_UINT8:   return std::to_string(((const uint8_t  *)data)[i]);
461        case GGUF_TYPE_INT8:    return std::to_string(((const int8_t   *)data)[i]);
462        case GGUF_TYPE_UINT16:  return std::to_string(((const uint16_t *)data)[i]);
463        case GGUF_TYPE_INT16:   return std::to_string(((const int16_t  *)data)[i]);
464        case GGUF_TYPE_UINT32:  return std::to_string(((const uint32_t *)data)[i]);
465        case GGUF_TYPE_INT32:   return std::to_string(((const int32_t  *)data)[i]);
466        case GGUF_TYPE_UINT64:  return std::to_string(((const uint64_t *)data)[i]);
467        case GGUF_TYPE_INT64:   return std::to_string(((const int64_t  *)data)[i]);
468        case GGUF_TYPE_FLOAT32: return std::to_string(((const float    *)data)[i]);
469        case GGUF_TYPE_FLOAT64: return std::to_string(((const double   *)data)[i]);
470        case GGUF_TYPE_BOOL:    return ((const bool *)data)[i] ? "true" : "false";
471        default:                return string_format("unknown type %d", type);
472    }
473}
474
475static std::string gguf_kv_to_str(const struct gguf_context * ctx_gguf, int i) {
476    const enum gguf_type type = gguf_get_kv_type(ctx_gguf, i);
477
478    switch (type) {
479        case GGUF_TYPE_STRING:
480            return gguf_get_val_str(ctx_gguf, i);
481        case GGUF_TYPE_ARRAY:
482            {
483                const enum gguf_type arr_type = gguf_get_arr_type(ctx_gguf, i);
484                int arr_n = gguf_get_arr_n(ctx_gguf, i);
485                const void * data = arr_type == GGUF_TYPE_STRING ? nullptr : gguf_get_arr_data(ctx_gguf, i);
486                std::stringstream ss;
487                ss << "[";
488                for (int j = 0; j < arr_n; j++) {
489                    if (arr_type == GGUF_TYPE_STRING) {
490                        std::string val = gguf_get_arr_str(ctx_gguf, i, j);
491                        // escape quotes
492                        string_replace_all(val, "\\", "\\\\");
493                        string_replace_all(val, "\"", "\\\"");
494                        ss << '"' << val << '"';
495                    } else if (arr_type == GGUF_TYPE_ARRAY) {
496                        ss << "???";
497                    } else {
498                        ss << gguf_data_to_str(arr_type, data, j);
499                    }
500                    if (j < arr_n - 1) {
501                        ss << ", ";
502                    }
503                }
504                ss << "]";
505                return ss.str();
506            }
507        default:
508            return gguf_data_to_str(type, gguf_get_val_data(ctx_gguf, i), 0);
509    }
510}
511
512//
513// debugging
514//
515
516static void print_tensor_shape(ggml_tensor * t) {
517    printf("%s.shape = [", t->name);
518    for (int i = 0; i < ggml_n_dims(t); ++i) {
519        printf("%" PRId64, t->ne[i]);
520        if (i < ggml_n_dims(t) - 1) {
521            printf(", ");
522        }
523    }
524    printf("]\n");
525}
526
527static void print_tensor_data(ggml_tensor * t, uint8_t * data, int64_t n) {
528    ggml_type type = t->type;
529    int64_t * ne = t->ne;
530    size_t * nb = t->nb;
531    for (int64_t i3 = 0; i3 < ne[3]; i3++) {
532        printf("%s.data: [\n", t->name);
533        for (int64_t i2 = 0; i2 < ne[2]; i2++) {
534            if (i2 == n && ne[2] > 2*n) {
535                printf("     ..., \n");
536                i2 = ne[2] - n;
537            }
538            printf("     [\n");
539            for (int64_t i1 = 0; i1 < ne[1]; i1++) {
540                if (i1 == n && ne[1] > 2*n) {
541                    printf("      ..., \n");
542                    i1 = ne[1] - n;
543                }
544                printf("      [");
545                for (int64_t i0 = 0; i0 < ne[0]; i0++) {
546                    if (i0 == n && ne[0] > 2*n) {
547                        printf("..., ");
548                        i0 = ne[0] - n;
549                    }
550                    size_t i = i3 * nb[3] + i2 * nb[2] + i1 * nb[1] + i0 * nb[0];
551                    float v;
552                    if (type == GGML_TYPE_F16) {
553                        v = ggml_fp16_to_fp32(*(ggml_fp16_t *) &data[i]);
554                    } else if (type == GGML_TYPE_F32) {
555                        v = *(float *) &data[i];
556                    } else if (type == GGML_TYPE_I32) {
557                        v = (float) *(int32_t *) &data[i];
558                    } else if (type == GGML_TYPE_I16) {
559                        v = (float) *(int16_t *) &data[i];
560                    } else if (type == GGML_TYPE_I8) {
561                        v = (float) *(int8_t *) &data[i];
562                    } else {
563                        GGML_ABORT("fatal error");
564                    }
565                    printf("%8.4f", v);
566                    if (i0 < ne[0] - 1) printf(", ");
567                }
568                printf("],\n");
569            }
570            printf("     ],\n");
571        }
572        printf("    ]\n");
573    }
574}
575
576void clip_debug_encode(clip_ctx * ctx, int h, int w, float fill_value);
577
578//
579// API used internally with mtmd
580//
581
582projector_type clip_get_projector_type(const struct clip_ctx * ctx);