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llama.cpp/tools/mtmd/clip.cpp
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2026-06-21 13:40:52 +02:00

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#include "clip.h"
#include "clip-impl.h"
#include "clip-model.h"
#include "clip-graph.h"
#include "models/models.h"
#include "ggml.h"
#include "ggml-cpp.h"
#include "ggml-alloc.h"
#include "ggml-backend.h"
#include "gguf.h"
#include <algorithm>
#include <cassert>
#include <cmath>
#include <cstdlib>
#include <cstring>
#include <fstream>
#include <map>
#include <stdexcept>
#include <unordered_set>
#include <vector>
#include <cinttypes>
#include <limits>
#include <array>
#include <functional>
#include <float.h>
struct clip_logger_state g_logger_state = {clip_log_callback_default, NULL};
//#define CLIP_DEBUG_FUNCTIONS
#ifdef CLIP_DEBUG_FUNCTIONS
static void clip_image_write_image_to_ppm(const clip_image_u8& img, const std::string& filename) {
std::ofstream file(filename, std::ios::binary);
if (!file.is_open()) {
LOG_ERR("Failed to open file for writing: %s\n", filename.c_str());
return;
}
// PPM header: P6 format, width, height, and max color value
const auto ppm_size = img.get_size();
file << "P6\n" << ppm_size.width << " " << ppm_size.height << "\n255\n";
// Write pixel data
const auto & ppm_buf = img.get_ro_buf();
for (size_t i = 0; i < ppm_buf.size(); i += 3) {
// PPM expects binary data in RGB format, which matches our image buffer
file.write(reinterpret_cast<const char*>(&ppm_buf[i]), 3);
}
file.close();
}
static void clip_image_save_to_bmp(const clip_image_u8& img, const std::string& filename) {
std::ofstream file(filename, std::ios::binary);
if (!file.is_open()) {
LOG_ERR("Failed to open file for writing: %s\n", filename.c_str());
return;
}
const auto bmp_size = img.get_size();
int fileSize = 54 + 3 * bmp_size.width * bmp_size.height; // File header + info header + pixel data
int bytesPerPixel = 3;
int widthInBytes = bmp_size.width * bytesPerPixel;
int paddingAmount = (4 - (widthInBytes % 4)) % 4;
int stride = widthInBytes + paddingAmount;
// Bitmap file header
unsigned char fileHeader[14] = {
'B','M', // Signature
0,0,0,0, // Image file size in bytes
0,0,0,0, // Reserved
54,0,0,0 // Start of pixel array
};
// Total file size
fileSize = 54 + (stride * bmp_size.height);
fileHeader[2] = (unsigned char)(fileSize);
fileHeader[3] = (unsigned char)(fileSize >> 8);
fileHeader[4] = (unsigned char)(fileSize >> 16);
fileHeader[5] = (unsigned char)(fileSize >> 24);
// Bitmap information header (BITMAPINFOHEADER)
unsigned char infoHeader[40] = {
40,0,0,0, // Size of this header (40 bytes)
0,0,0,0, // Image width
0,0,0,0, // Image height
1,0, // Number of color planes
24,0, // Bits per pixel
0,0,0,0, // No compression
0,0,0,0, // Image size (can be 0 for no compression)
0,0,0,0, // X pixels per meter (not specified)
0,0,0,0, // Y pixels per meter (not specified)
0,0,0,0, // Total colors (color table not used)
0,0,0,0 // Important colors (all are important)
};
// Width and height in the information header
infoHeader[4] = (unsigned char)(bmp_size.width);
infoHeader[5] = (unsigned char)(bmp_size.width >> 8);
infoHeader[6] = (unsigned char)(bmp_size.width >> 16);
infoHeader[7] = (unsigned char)(bmp_size.width >> 24);
infoHeader[8] = (unsigned char)(bmp_size.height);
infoHeader[9] = (unsigned char)(bmp_size.height >> 8);
infoHeader[10] = (unsigned char)(bmp_size.height >> 16);
infoHeader[11] = (unsigned char)(bmp_size.height >> 24);
// Write file headers
file.write(reinterpret_cast<char*>(fileHeader), sizeof(fileHeader));
file.write(reinterpret_cast<char*>(infoHeader), sizeof(infoHeader));
// Pixel data
std::vector<unsigned char> padding(3, 0); // Max padding size to be added to each row
for (int y = bmp_size.height - 1; y >= 0; --y) { // BMP files are stored bottom-to-top
for (int x = 0; x < bmp_size.width; ++x) {
// Each pixel
const auto px = img.get_pixel(x, y);
unsigned char pixel[3] = {
px[2], // BMP stores pixels in BGR format
px[1],
px[0]
};
file.write(reinterpret_cast<char*>(pixel), 3);
}
// Write padding for the row
file.write(reinterpret_cast<char*>(padding.data()), paddingAmount);
}
file.close();
}
// debug function to convert f32 to u8
static void clip_image_convert_f32_to_u8(const clip_image_f32& src, clip_image_u8& dst) {
dst.set_size(src.get_size(), false);
const auto & src_buf = src.get_ro_buf();
std::vector<uint8_t> dst_buf(src.n_elements());
for (size_t i = 0; i < src.n_elements(); ++i) {
dst_buf[i] = static_cast<uint8_t>(std::min(std::max(int(src_buf[i] * 255.0f), 0), 255));
}
dst.cpy_buf(dst_buf);
}
#endif
struct clip_ctx {
clip_model model;
gguf_context_ptr ctx_gguf;
ggml_context_ptr ctx_data;
std::vector<uint8_t> buf_compute_meta;
std::vector<ggml_backend_t> backend_ptrs;
std::vector<ggml_backend_buffer_type_t> backend_buft;
ggml_backend_t backend = nullptr;
ggml_backend_t backend_cpu = nullptr;
ggml_backend_buffer_ptr buf;
int max_nodes = 8192;
ggml_backend_sched_ptr sched;
clip_flash_attn_type flash_attn_type = CLIP_FLASH_ATTN_TYPE_AUTO;
bool is_allocated = false;
bool debug_output_embeddings = false;
// for measuring memory usage
bool no_alloc = false;
std::map<ggml_backend_dev_t, size_t> mem_usage;
std::map<ggml_backend_dev_t, size_t> mem_compute;
bool support_batch = false;
clip_ctx(clip_context_params & ctx_params) {
flash_attn_type = ctx_params.flash_attn_type;
no_alloc = ctx_params.no_alloc;
backend_cpu = ggml_backend_init_by_type(GGML_BACKEND_DEVICE_TYPE_CPU, nullptr);
if (!backend_cpu) {
throw std::runtime_error("failed to initialize CPU backend");
}
if (ctx_params.use_gpu) {
auto * backend_name = std::getenv("MTMD_BACKEND_DEVICE");
if (backend_name != nullptr) {
backend = ggml_backend_init_by_name(backend_name, nullptr);
if (!backend) {
LOG_WRN("%s: Warning: Failed to initialize \"%s\" backend, falling back to default GPU backend\n", __func__, backend_name);
}
}
if (!backend) {
backend = ggml_backend_init_by_type(GGML_BACKEND_DEVICE_TYPE_GPU, nullptr);
backend = backend ? backend : ggml_backend_init_by_type(GGML_BACKEND_DEVICE_TYPE_IGPU, nullptr);
}
}
if (backend) {
LOG_INF("%s: CLIP using %s backend\n", __func__, ggml_backend_name(backend));
backend_ptrs.push_back(backend);
backend_buft.push_back(ggml_backend_get_default_buffer_type(backend));
} else {
backend = backend_cpu;
LOG_INF("%s: CLIP using CPU backend\n", __func__);
}
if (ctx_params.image_min_tokens > 0) {
model.hparams.custom_image_min_tokens = ctx_params.image_min_tokens;
}
if (ctx_params.image_max_tokens > 0) {
model.hparams.custom_image_max_tokens = ctx_params.image_max_tokens;
}
backend_ptrs.push_back(backend_cpu);
backend_buft.push_back(ggml_backend_get_default_buffer_type(backend_cpu));
sched.reset(
ggml_backend_sched_new(backend_ptrs.data(), backend_buft.data(), backend_ptrs.size(), 8192, false, true)
);
if (ctx_params.cb_eval != nullptr) {
ggml_backend_sched_set_eval_callback(sched.get(), ctx_params.cb_eval, ctx_params.cb_eval_user_data);
}
debug_output_embeddings = std::getenv("MTMD_DEBUG_EMBEDDINGS") != nullptr;
}
~clip_ctx() {
ggml_backend_free(backend);
if (backend != backend_cpu) {
ggml_backend_free(backend_cpu);
}
}
// this function is added so that we don't change too much of the existing code
projector_type proj_type() const {
return model.proj_type;
}
};
//
// clip_graph
//
clip_graph::clip_graph(clip_ctx * ctx, const clip_image_f32 & img) :
model(ctx->model),
hparams(model.hparams),
proj_type(ctx->proj_type()),
img(img),
patch_size(hparams.patch_size),
n_patches_x(img.nx() / patch_size),
n_patches_y(img.ny() / patch_size),
n_patches(n_patches_x * n_patches_y),
n_embd(hparams.n_embd),
n_head(hparams.n_head),
n_head_kv(hparams.n_head_kv),
d_head(n_head > 0 ? n_embd / n_head : 0),
n_layer(hparams.n_layer),
n_mmproj_embd(clip_n_mmproj_embd(ctx)),
eps(hparams.eps),
kq_scale(d_head > 0 ? 1.0f / sqrtf((float)d_head) : 0.0f),
flash_attn_type(ctx->flash_attn_type) {
struct ggml_init_params params = {
/*.mem_size =*/ ctx->buf_compute_meta.size(),
/*.mem_buffer =*/ ctx->buf_compute_meta.data(),
/*.no_alloc =*/ true,
};
ctx0_ptr.reset(ggml_init(params));
ctx0 = ctx0_ptr.get();
gf = ggml_new_graph_custom(ctx0, ctx->max_nodes, false);
}
ggml_tensor * clip_graph::build_mm(ggml_tensor * w, ggml_tensor * x) const {
return ggml_mul_mat(ctx0, w, x);
}
void clip_graph::cb(ggml_tensor * cur, const char * name, int il) const {
if (il >= 0) {
ggml_format_name(cur, "%s-%d", name, il);
} else {
ggml_set_name(cur, name);
}
}
// siglip2 naflex
ggml_tensor * clip_graph::resize_position_embeddings(uint32_t interpolation_mode) {
ggml_tensor * pos_embd = model.position_embeddings;
const int height = img.ny() / patch_size;
const int width = img.nx() / patch_size;
const uint32_t mode = interpolation_mode;
const int n_per_side = (int)std::sqrt(pos_embd->ne[1]);
GGML_ASSERT(pos_embd);
if (height == n_per_side && width == n_per_side) {
return pos_embd;
}
pos_embd = ggml_reshape_3d(ctx0, pos_embd, n_embd, n_per_side, n_per_side); // -> (n_embd, n_per_side, n_per_side)
pos_embd = ggml_permute(ctx0, pos_embd, 2, 0, 1, 3); // -> (n_per_side, n_per_side, n_embd)
pos_embd = ggml_interpolate(ctx0, pos_embd, width, height, n_embd, 1, mode); // -> (width, height, n_embd)
pos_embd = ggml_permute(ctx0, pos_embd, 1, 2, 0, 3); // -> (n_embd, width, height)
pos_embd = ggml_cont_2d(ctx0, pos_embd, n_embd, width * height); // -> (n_embd, width * height)
return pos_embd;
}
// build vision transformer (ViT) cgraph
// this function should cover most of the models
// if your model has specific features, you should probably duplicate this function
ggml_tensor * clip_graph::build_vit(
ggml_tensor * inp,
int64_t n_pos,
norm_type norm_t,
ffn_op_type ffn_t,
ggml_tensor * learned_pos_embd,
std::function<ggml_tensor *(ggml_tensor *, const clip_layer &)> add_pos,
const build_vit_opts & opts
) {
// batch dim: inp is [n_embd, n_pos, B]
const int64_t B = inp->ne[2];
if (learned_pos_embd) {
inp = ggml_add(ctx0, inp, learned_pos_embd);
cb(inp, "pos_embed", -1);
}
// flatten batch; unflatten again in attention
inp = ggml_reshape_2d(ctx0, inp, n_embd, n_pos * B);
ggml_tensor * inpL = inp;
// pre-layernorm
if (model.pre_ln_w) {
inpL = build_norm(inpL, model.pre_ln_w, model.pre_ln_b, norm_t, eps, -1);
cb(inpL, "pre_ln", -1);
}
// loop over layers
for (int il = 0; il < n_layer; il++) {
auto & layer = model.layers[il];
ggml_tensor * cur = inpL; // inpL = residual, cur = hidden_states
// layernorm1
cur = build_norm(cur, layer.ln_1_w, layer.ln_1_b, norm_t, eps, il);
cb(cur, "layer_inp_normed", il);
// self-attention
{
ggml_tensor * Qcur = nullptr;
ggml_tensor * Kcur = nullptr;
ggml_tensor * Vcur = nullptr;
if (layer.qkv_w != nullptr) {
// fused qkv
cur = build_mm(layer.qkv_w, cur);
if (layer.qkv_b != nullptr) {
cur = ggml_add(ctx0, cur, layer.qkv_b);
}
// Q/K/V as [d_head, n_head, n_pos, B], the batch stride is cur->nb[1]*n_pos.
Qcur = ggml_view_4d(ctx0, cur, d_head, n_head, n_pos, B,
/* nb1 */ ggml_row_size(cur->type, d_head),
/* nb2 */ cur->nb[1],
/* nb3 */ cur->nb[1] * n_pos,
/* offset */ 0);
Kcur = ggml_view_4d(ctx0, cur, d_head, n_head, n_pos, B,
/* nb1 */ ggml_row_size(cur->type, d_head),
/* nb2 */ cur->nb[1],
/* nb3 */ cur->nb[1] * n_pos,
/* offset */ ggml_row_size(cur->type, n_embd));
Vcur = ggml_view_4d(ctx0, cur, d_head, n_head, n_pos, B,
/* nb1 */ ggml_row_size(cur->type, d_head),
/* nb2 */ cur->nb[1],
/* nb3 */ cur->nb[1] * n_pos,
/* offset */ ggml_row_size(cur->type, 2 * n_embd));
if (layer.q_norm) {
GGML_ASSERT(layer.q_norm->ne[0] == Qcur->ne[0]);
Qcur = build_norm(Qcur, layer.q_norm, NULL, norm_t, eps, il);
cb(Qcur, "Qcur_norm", il);
}
if (layer.k_norm) {
GGML_ASSERT(layer.k_norm->ne[0] == Kcur->ne[0]);
Kcur = build_norm(Kcur, layer.k_norm, NULL, norm_t, eps, il);
cb(Kcur, "Kcur_norm", il);
}
} else {
// separate q, k, v
Qcur = build_mm(layer.q_w, cur);
if (layer.q_b) {
Qcur = ggml_add(ctx0, Qcur, layer.q_b);
}
Kcur = build_mm(layer.k_w, cur);
if (layer.k_b) {
Kcur = ggml_add(ctx0, Kcur, layer.k_b);
}
Vcur = build_mm(layer.v_w, cur);
if (layer.v_b) {
Vcur = ggml_add(ctx0, Vcur, layer.v_b);
}
// if true, norm must be applied after reshaping to (d_head, n_head, n_pos)
bool norm_per_head = layer.q_norm && layer.q_norm->ne[0] == d_head;
if (!norm_per_head) {
if (layer.q_norm) {
Qcur = build_norm(Qcur, layer.q_norm, NULL, norm_t, eps, il);
cb(Qcur, "Qcur_norm", il);
}
if (layer.k_norm) {
Kcur = build_norm(Kcur, layer.k_norm, NULL, norm_t, eps, il);
cb(Kcur, "Kcur_norm", il);
}
}
Qcur = ggml_reshape_4d(ctx0, Qcur, d_head, n_head, n_pos, B);
Kcur = ggml_reshape_4d(ctx0, Kcur, d_head, n_head_kv, n_pos, B);
Vcur = ggml_reshape_4d(ctx0, Vcur, d_head, n_head_kv, n_pos, B);
if (norm_per_head) {
if (layer.q_norm) {
Qcur = build_norm(Qcur, layer.q_norm, NULL, norm_t, eps, il);
cb(Qcur, "Qcur_norm_per_head", il);
}
if (layer.k_norm) {
Kcur = build_norm(Kcur, layer.k_norm, NULL, norm_t, eps, il);
cb(Kcur, "Kcur_norm_per_head", il);
}
}
}
cb(Qcur, "Qcur", il);
cb(Kcur, "Kcur", il);
cb(Vcur, "Vcur", il);
if (add_pos) {
Qcur = add_pos(Qcur, layer);
Kcur = add_pos(Kcur, layer);
cb(Qcur, "Qcur_pos", il);
cb(Kcur, "Kcur_pos", il);
}
if (proj_type == PROJECTOR_TYPE_GEMMA4V) {
Vcur = ggml_rms_norm(ctx0, Vcur, eps);
cb(Vcur, "Vcur_normed", il);
}
// build_attn returns a flat 2D [n_embd, n_pos*B]
cur = build_attn(layer.o_w, layer.o_b,
Qcur, Kcur, Vcur, opts.attn_mask, kq_scale, il);
cb(cur, "attn_out", il);
}
if (layer.ls_1_w) {
cur = ggml_mul(ctx0, cur, layer.ls_1_w);
cb(cur, "attn_out_scaled", il);
}
if (layer.attn_post_norm_w) {
cur = build_norm(cur, layer.attn_post_norm_w, nullptr, norm_t, eps, il);
cb(cur, "attn_post_normed", il);
}
// re-add the layer input, e.g., residual
cur = ggml_add(ctx0, cur, inpL);
inpL = cur; // inpL = residual, cur = hidden_states
cb(cur, "ffn_inp", il);
// layernorm2 (pre-ffn norm)
cur = build_norm(cur, layer.ln_2_w, layer.ln_2_b, norm_t, eps, il);
cb(cur, "ffn_inp_normed", il);
// ffn
cur = build_ffn(cur,
layer.ff_up_w, layer.ff_up_b,
layer.ff_gate_w, layer.ff_gate_b,
layer.ff_down_w, layer.ff_down_b,
ffn_t, il);
cb(cur, "ffn_out", il);
if (layer.ff_post_norm_w) {
cur = build_norm(cur, layer.ff_post_norm_w, nullptr, norm_t, eps, il);
cb(cur, "ffn_post_normed", il);
}
if (layer.ls_2_w) {
cur = ggml_mul(ctx0, cur, layer.ls_2_w);
cb(cur, "ffn_out_scaled", il);
}
// residual 2
cur = ggml_add(ctx0, inpL, cur);
cb(cur, "layer_out", il);
if (layer.ls_out_w) {
cur = ggml_mul(ctx0, cur, layer.ls_out_w);
cb(cur, "layer_out_scaled", il);
}
inpL = cur;
}
if (model.audio_has_avgpool()) {
ggml_tensor * cur = inpL;
cur = ggml_transpose(ctx0, cur);
cur = ggml_cont(ctx0, cur);
cur = ggml_pool_1d(ctx0, cur, GGML_OP_POOL_AVG, 2, 2, 0);
cur = ggml_transpose(ctx0, cur);
cur = ggml_cont(ctx0, cur);
inpL = cur;
}
// post-layernorm
if (model.post_ln_w) {
inpL = build_norm(inpL, model.post_ln_w, model.post_ln_b, norm_t, eps, -1);
}
// restore the batch dim
GGML_ASSERT(inpL->ne[1] % B == 0);
inpL = ggml_reshape_3d(ctx0, inpL, n_embd, inpL->ne[1] / B, B);
return inpL;
}
// build the input after conv2d (inp_raw --> patches)
// returns tensor with shape [n_embd, n_patches]
ggml_tensor * clip_graph::build_inp() {
ggml_tensor * inp_raw = build_inp_raw();
ggml_tensor * inp = ggml_conv_2d(ctx0, model.patch_embeddings_0, inp_raw, patch_size, patch_size, 0, 0, 1, 1);
inp = ggml_reshape_3d(ctx0, inp, n_patches, n_embd, n_batch);
inp = ggml_cont(ctx0, ggml_transpose(ctx0, inp));
if (model.patch_bias) {
inp = ggml_add(ctx0, inp, model.patch_bias);
cb(inp, "patch_bias", -1);
}
return inp;
}
ggml_tensor * clip_graph::build_inp_raw(int channels) {
ggml_tensor * inp_raw = ggml_new_tensor_4d(ctx0, GGML_TYPE_F32, img.nx(), img.ny(), channels, n_batch);
ggml_set_name(inp_raw, "inp_raw");
ggml_set_input(inp_raw);
return inp_raw;
}
ggml_tensor * clip_graph::build_norm(
ggml_tensor * cur,
ggml_tensor * mw,
ggml_tensor * mb,
norm_type type,
float norm_eps,
int il) const {
cur = type == NORM_TYPE_RMS
? ggml_rms_norm(ctx0, cur, norm_eps)
: ggml_norm(ctx0, cur, norm_eps);
if (mw) {
cur = ggml_mul(ctx0, cur, mw);
cb(cur, "norm_w", il);
}
if (mb) {
cur = ggml_add(ctx0, cur, mb);
cb(cur, "norm_b", il);
}
return cur;
}
ggml_tensor * clip_graph::build_ffn(
ggml_tensor * cur,
ggml_tensor * up,
ggml_tensor * up_b,
ggml_tensor * gate,
ggml_tensor * gate_b,
ggml_tensor * down,
ggml_tensor * down_b,
ffn_op_type type_op,
int il) const {
ggml_tensor * tmp = up ? build_mm(up, cur) : cur;
cb(tmp, "ffn_up", il);
if (up_b) {
tmp = ggml_add(ctx0, tmp, up_b);
cb(tmp, "ffn_up_b", il);
}
if (gate) {
cur = build_mm(gate, cur);
cb(cur, "ffn_gate", il);
if (gate_b) {
cur = ggml_add(ctx0, cur, gate_b);
cb(cur, "ffn_gate_b", il);
}
} else {
cur = tmp;
}
// we only support parallel ffn for now
switch (type_op) {
case FFN_SILU:
if (gate) {
cur = ggml_swiglu_split(ctx0, cur, tmp);
cb(cur, "ffn_swiglu", il);
} else {
cur = ggml_silu(ctx0, cur);
cb(cur, "ffn_silu", il);
} break;
case FFN_GELU:
if (gate) {
cur = ggml_geglu_split(ctx0, cur, tmp);
cb(cur, "ffn_geglu", il);
} else {
cur = ggml_gelu(ctx0, cur);
cb(cur, "ffn_gelu", il);
} break;
case FFN_GELU_ERF:
if (gate) {
cur = ggml_geglu_erf_split(ctx0, cur, tmp);
cb(cur, "ffn_geglu_erf", il);
} else {
cur = ggml_gelu_erf(ctx0, cur);
cb(cur, "ffn_gelu_erf", il);
} break;
case FFN_GELU_QUICK:
if (gate) {
cur = ggml_geglu_quick_split(ctx0, cur, tmp);
cb(cur, "ffn_geglu_quick", il);
} else {
cur = ggml_gelu_quick(ctx0, cur);
cb(cur, "ffn_gelu_quick", il);
} break;
case FFN_RELU_SQR:
{
cur = ggml_relu(ctx0, cur);
cur = ggml_sqr(ctx0, cur);
cb(cur, "ffn_relu_sqr", il);
} break;
}
if (down) {
cur = build_mm(down, cur);
}
if (down_b) {
cb(cur, "ffn_down", il);
}
if (down_b) {
cur = ggml_add(ctx0, cur, down_b);
}
return cur;
}
ggml_tensor * clip_graph::build_attn(
ggml_tensor * wo,
ggml_tensor * wo_b,
ggml_tensor * q_cur,
ggml_tensor * k_cur,
ggml_tensor * v_cur,
ggml_tensor * kq_mask,
float kq_scale,
int il,
ggml_tensor * sinks) const {
// these nodes are added to the graph together so that they are not reordered
// by doing so, the number of splits in the graph is reduced
ggml_build_forward_expand(gf, q_cur);
ggml_build_forward_expand(gf, k_cur);
ggml_build_forward_expand(gf, v_cur);
ggml_tensor * q = ggml_permute(ctx0, q_cur, 0, 2, 1, 3);
//cb(q, "q", il);
ggml_tensor * k = ggml_permute(ctx0, k_cur, 0, 2, 1, 3);
//cb(k, "k", il);
ggml_tensor * cur;
if (flash_attn_type == CLIP_FLASH_ATTN_TYPE_ENABLED) {
ggml_tensor * v = ggml_permute(ctx0, v_cur, 0, 2, 1, 3);
k = ggml_cast(ctx0, k, GGML_TYPE_F16);
v = ggml_cast(ctx0, v, GGML_TYPE_F16);
if (kq_mask) {
kq_mask = ggml_cast(ctx0, kq_mask, GGML_TYPE_F16);
}
cur = ggml_flash_attn_ext(ctx0, q, k, v, kq_mask, kq_scale, 0.0f, 0.0f);
ggml_flash_attn_ext_set_prec(cur, GGML_PREC_F32);
if (sinks != nullptr) {
ggml_flash_attn_ext_add_sinks(cur, sinks);
}
cur = ggml_reshape_2d(ctx0, cur, cur->ne[0]*cur->ne[1], cur->ne[2]*cur->ne[3]);
} else {
ggml_tensor * v = ggml_permute(ctx0, v_cur, 1, 2, 0, 3);
v = ggml_cont(ctx0, v);
ggml_tensor * kq = ggml_mul_mat(ctx0, k, q);
// F32 may not needed for vision encoders?
// ggml_mul_mat_set_prec(kq, GGML_PREC_F32);
kq = ggml_soft_max_ext(ctx0, kq, kq_mask, kq_scale, 0.0f);
if (sinks != nullptr) {
ggml_soft_max_add_sinks(kq, sinks);
}
ggml_tensor * kqv = ggml_mul_mat(ctx0, v, kq);
cur = ggml_permute(ctx0, kqv, 0, 2, 1, 3);
cur = ggml_cont_2d(ctx0, cur, cur->ne[0] * cur->ne[1], cur->ne[2] * cur->ne[3]);
}
cb(cur, "kqv_out", il);
if (wo) {
cur = build_mm(wo, cur);
}
if (wo_b) {
cur = ggml_add(ctx0, cur, wo_b);
}
return cur;
}
// implementation of the 2D RoPE without adding a new op in ggml
// this is not efficient (use double the memory), but works on all backends
// TODO: there was a more efficient which relies on ggml_view and ggml_rope_ext_inplace, but the rope inplace does not work well with non-contiguous tensors ; we should fix that and revert back to the original implementation in https://github.com/ggml-org/llama.cpp/pull/13065
ggml_tensor * clip_graph::build_rope_2d(
ggml_context * ctx0,
ggml_tensor * cur,
ggml_tensor * pos_a, // first half
ggml_tensor * pos_b, // second half
const float freq_base,
const bool interleave_freq
) {
const int64_t n_dim = cur->ne[0];
const int64_t n_head = cur->ne[1];
const int64_t n_pos = cur->ne[2];
// for example, if we have cur tensor of shape (n_dim=8, n_head, n_pos)
// we will have a list of 4 inv_freq: 1e-0, 1e-1, 1e-2, 1e-3
// first half of cur will use 1e-0, 1e-2 (even)
// second half of cur will use 1e-1, 1e-3 (odd)
// the trick here is to rotate just half of n_dim, so inv_freq will automatically be even
// ^ don't ask me why, it's math! -2(2i) / n_dim == -2i / (n_dim/2)
// then for the second half, we use freq_scale to shift the inv_freq
// ^ why? replace (2i) with (2i+1) in the above equation
const float freq_scale_odd = interleave_freq
? std::pow(freq_base, (float)-2/n_dim)
: 1.0;
// first half
ggml_tensor * first;
{
first = ggml_view_3d(ctx0, cur,
n_dim/2, n_head, n_pos,
cur->nb[1],
cur->nb[2],
0);
first = ggml_rope_ext(
ctx0,
first,
pos_a, // positions
nullptr, // freq factors
n_dim/2, // n_dims
0, 0, freq_base,
1.0f, 0.0f, 1.0f, 0.0f, 0.0f
);
}
// second half
ggml_tensor * second;
{
second = ggml_view_3d(ctx0, cur,
n_dim/2, n_head, n_pos,
cur->nb[1],
cur->nb[2],
n_dim/2 * ggml_element_size(cur));
second = ggml_rope_ext(
ctx0,
second,
pos_b, // positions
nullptr, // freq factors
n_dim/2, // n_dims
0, 0, freq_base,
freq_scale_odd,
0.0f, 1.0f, 0.0f, 0.0f
);
}
cur = ggml_concat(ctx0, first, second, 0);
return cur;
}
// Generic function to stack frames for audio processing
// Abstracts out the StackAudioFrames logic used by ultravox
ggml_tensor * clip_graph::build_stack(ggml_tensor * cur, int32_t stack_factor, int32_t n_embed) {
if (stack_factor <= 1) {
return cur;
}
int64_t total_elements = ggml_nelements(cur);
int64_t stride = n_embed * stack_factor;
// Calculate padded length
int64_t padded_len = GGML_PAD(total_elements, stride);
int64_t pad = padded_len - total_elements;
if (pad > 0) {
// Pad the tensor to make it divisible by stride
cur = ggml_view_1d(ctx0, cur, total_elements, 0);
cur = ggml_pad(ctx0, cur, pad, 0, 0, 0);
}
// Reshape to [stride, padded_len / stride]
cur = ggml_view_2d(ctx0, cur, stride, padded_len / stride,
ggml_row_size(cur->type, stride), 0);
return cur;
}
// aka pixel_shuffle / pixel_unshuffle / patch_merger (Kimi-VL)
// support dynamic resolution
ggml_tensor * clip_graph::build_patch_merge_permute(ggml_tensor * cur, int scale_factor) {
GGML_ASSERT(scale_factor > 1);
const int n_embd = cur->ne[0];
int width = img.nx() / patch_size;
int height = img.ny() / patch_size;
// pad width and height to factor
const int64_t pad_width = CLIP_ALIGN(width, scale_factor) - width;
const int64_t pad_height = CLIP_ALIGN(height, scale_factor) - height;
cur = ggml_reshape_3d(ctx0, cur, n_embd, width, height);
if (pad_width || pad_height) {
cur = ggml_pad(ctx0, cur, 0, pad_width, pad_height, 0);
width += pad_width;
height += pad_height;
}
// unshuffle h
cur = ggml_reshape_3d(ctx0, cur, n_embd * scale_factor, width / scale_factor, height);
cur = ggml_permute(ctx0, cur, 0, 2, 1, 3);
// unshuffle w
cur = ggml_cont_3d(ctx0, cur, n_embd * scale_factor * scale_factor, height / scale_factor, width / scale_factor);
cur = ggml_permute(ctx0, cur, 0, 2, 1, 3);
cur = ggml_cont_2d(ctx0, cur, cur->ne[0], cur->ne[1] * cur->ne[2]);
cb(cur, "pixel_shuffle", -1);
return cur;
}
static std::unique_ptr<clip_graph> clip_get_graph_builder(clip_ctx * ctx, const clip_image_f32_batch & imgs) {
const clip_image_f32 & img = imgs.entries[0];
std::unique_ptr<clip_graph> builder;
switch (ctx->proj_type()) {
case PROJECTOR_TYPE_GEMMA3:
case PROJECTOR_TYPE_IDEFICS3:
case PROJECTOR_TYPE_LFM2:
case PROJECTOR_TYPE_JANUS_PRO:
case PROJECTOR_TYPE_PHI4:
{
builder = std::make_unique<clip_graph_siglip>(ctx, img);
} break;
case PROJECTOR_TYPE_GEMMA3NV:
{
builder = std::make_unique<clip_graph_mobilenetv5>(ctx, img);
} break;
case PROJECTOR_TYPE_GEMMA4V:
{
builder = std::make_unique<clip_graph_gemma4v>(ctx, img);
} break;
case PROJECTOR_TYPE_GEMMA4UV:
{
builder = std::make_unique<clip_graph_gemma4uv>(ctx, img);
} break;
case PROJECTOR_TYPE_PIXTRAL:
case PROJECTOR_TYPE_LIGHTONOCR:
{
builder = std::make_unique<clip_graph_pixtral>(ctx, img);
} break;
case PROJECTOR_TYPE_DOTS_OCR:
{
builder = std::make_unique<clip_graph_dotsocr>(ctx, img);
} break;
case PROJECTOR_TYPE_QWEN2VL:
case PROJECTOR_TYPE_QWEN25VL:
{
builder = std::make_unique<clip_graph_qwen2vl>(ctx, img);
} break;
case PROJECTOR_TYPE_QWEN3VL:
{
builder = std::make_unique<clip_graph_qwen3vl>(ctx, img);
} break;
case PROJECTOR_TYPE_EXAONE4_5:
{
builder = std::make_unique<clip_graph_exaone4_5>(ctx, img);
} break;
case PROJECTOR_TYPE_MIMOVL:
{
builder = std::make_unique<clip_graph_mimovl>(ctx, img);
} break;
case PROJECTOR_TYPE_STEP3VL:
{
builder = std::make_unique<clip_graph_step3vl>(ctx, img);
} break;
case PROJECTOR_TYPE_MINICPMV:
{
builder = std::make_unique<clip_graph_minicpmv>(ctx, img);
} break;
case PROJECTOR_TYPE_MINICPMV4_6:
{
builder = std::make_unique<clip_graph_minicpmv4_6>(ctx, img);
} break;
case PROJECTOR_TYPE_INTERNVL:
{
builder = std::make_unique<clip_graph_internvl>(ctx, img);
} break;
case PROJECTOR_TYPE_NEMOTRON_V2_VL:
{
builder = std::make_unique<clip_graph_nemotron_v2_vl>(ctx, img);
} break;
case PROJECTOR_TYPE_LLAMA4:
{
builder = std::make_unique<clip_graph_llama4>(ctx, img);
} break;
case PROJECTOR_TYPE_ULTRAVOX:
case PROJECTOR_TYPE_VOXTRAL:
case PROJECTOR_TYPE_QWEN2A:
case PROJECTOR_TYPE_GLMA:
case PROJECTOR_TYPE_MERALION:
case PROJECTOR_TYPE_MUSIC_FLAMINGO:
{
builder = std::make_unique<clip_graph_whisper_enc>(ctx, img);
} break;
case PROJECTOR_TYPE_KIMIVL:
{
builder = std::make_unique<clip_graph_kimivl>(ctx, img);
} break;
case PROJECTOR_TYPE_PADDLEOCR:
{
builder = std::make_unique<clip_graph_paddleocr>(ctx, img);
} break;
case PROJECTOR_TYPE_KIMIK25:
{
builder = std::make_unique<clip_graph_kimik25>(ctx, img);
} break;
case PROJECTOR_TYPE_COGVLM:
{
builder = std::make_unique<clip_graph_cogvlm>(ctx, img);
} break;
case PROJECTOR_TYPE_HUNYUANVL:
{
builder = std::make_unique<clip_graph_hunyuanvl>(ctx, img);
} break;
case PROJECTOR_TYPE_MLP:
case PROJECTOR_TYPE_MLP_NORM:
case PROJECTOR_TYPE_LDP:
case PROJECTOR_TYPE_LDPV2:
case PROJECTOR_TYPE_GLM_EDGE:
{
builder = std::make_unique<clip_graph_llava>(ctx, img);
} break;
case PROJECTOR_TYPE_DEEPSEEKOCR:
{
builder = std::make_unique<clip_graph_deepseekocr>(ctx, img);
} break;
case PROJECTOR_TYPE_DEEPSEEKOCR2:
{
builder = std::make_unique<clip_graph_deepseekocr2>(ctx, img);
} break;
case PROJECTOR_TYPE_LFM2A:
{
builder = std::make_unique<clip_graph_conformer>(ctx, img);
} break;
case PROJECTOR_TYPE_GEMMA4A:
{
builder = std::make_unique<clip_graph_gemma4a>(ctx, img);
} break;
case PROJECTOR_TYPE_GEMMA4UA:
{
builder = std::make_unique<clip_graph_gemma4ua>(ctx, img);
} break;
case PROJECTOR_TYPE_GRANITE_SPEECH:
{
builder = std::make_unique<clip_graph_granite_speech>(ctx, img);
} break;
case PROJECTOR_TYPE_GLM4V:
{
builder = std::make_unique<clip_graph_glm4v>(ctx, img);
} break;
case PROJECTOR_TYPE_QWEN3A:
{
builder = std::make_unique<clip_graph_qwen3a>(ctx, img);
} break;
case PROJECTOR_TYPE_YOUTUVL:
{
builder = std::make_unique<clip_graph_youtuvl>(ctx, img);
} break;
case PROJECTOR_TYPE_YASA2:
{
builder = std::make_unique<clip_graph_yasa2>(ctx, img);
} break;
case PROJECTOR_TYPE_GRANITE4_VISION:
{
builder = std::make_unique<clip_graph_granite4_vision>(ctx, img);
} break;
default:
GGML_ABORT("missing cgraph builder");
}
// TODO [QWEN_VIDEO]: improve this in the future
builder->n_batch = imgs.entries.size();
return builder;
}
//
// clip_model_loader
//
struct clip_model_loader {
ggml_context_ptr ctx_meta;
gguf_context_ptr ctx_gguf;
std::string fname;
size_t model_size = 0; // in bytes
bool has_vision = false;
bool has_audio = false;
mtmd_progress_callback progress_callback = nullptr;
void * progress_callback_user_data = nullptr;
// TODO @ngxson : we should not pass clip_ctx here, it should be clip_model
clip_model_loader(const char * fname,
bool skip_tensors = false,
mtmd_progress_callback progress_cb = nullptr,
void * progress_user_data = nullptr)
: fname(fname),
progress_callback(progress_cb),
progress_callback_user_data(progress_user_data) {
struct ggml_context * meta = nullptr;
struct gguf_init_params params = {
/*.no_alloc = */ true,
/*.ctx = */ &meta,
};
ctx_gguf = gguf_context_ptr(gguf_init_from_file(fname, params));
if (!ctx_gguf.get()) {
throw std::runtime_error(string_format("%s: failed to load CLIP model from %s. Does this file exist?\n", __func__, fname));
}
ctx_meta.reset(meta);
const int n_tensors = gguf_get_n_tensors(ctx_gguf.get());
// print gguf info
{
std::string name;
get_string(KEY_NAME, name, false);
std::string description;
get_string(KEY_DESCRIPTION, description, false);
LOG_INF("%s: model name: %s\n", __func__, name.c_str());
LOG_INF("%s: description: %s\n", __func__, description.c_str());
LOG_INF("%s: GGUF version: %d\n", __func__, gguf_get_version(ctx_gguf.get()));
LOG_INF("%s: alignment: %zu\n", __func__, gguf_get_alignment(ctx_gguf.get()));
LOG_INF("%s: n_tensors: %d\n", __func__, n_tensors);
LOG_INF("%s: n_kv: %d\n", __func__, (int)gguf_get_n_kv(ctx_gguf.get()));
LOG_INF("\n");
}
// modalities
{
get_bool(KEY_HAS_VISION_ENC, has_vision, false);
get_bool(KEY_HAS_AUDIO_ENC, has_audio, false);
if (has_vision) {
LOG_INF("%s: has vision encoder\n", __func__);
}
if (has_audio) {
LOG_INF("%s: has audio encoder\n", __func__);
}
}
// tensors
if (!skip_tensors) {
for (int i = 0; i < n_tensors; ++i) {
const char * name = gguf_get_tensor_name(ctx_gguf.get(), i);
const size_t offset = gguf_get_tensor_offset(ctx_gguf.get(), i);
enum ggml_type type = gguf_get_tensor_type(ctx_gguf.get(), i);
ggml_tensor * cur = ggml_get_tensor(meta, name);
size_t tensor_size = ggml_nbytes(cur);
model_size += tensor_size;
LOG_DBG("%s: tensor[%d]: n_dims = %d, name = %s, tensor_size=%zu, offset=%zu, shape:[%" PRIu64 ", %" PRIu64 ", %" PRIu64 ", %" PRIu64 "], type = %s\n",
__func__, i, ggml_n_dims(cur), cur->name, tensor_size, offset, cur->ne[0], cur->ne[1], cur->ne[2], cur->ne[3], ggml_type_name(type));
}
}
}
void load_hparams(clip_model & model, clip_modality modality) {
auto & hparams = model.hparams;
std::string log_ffn_op; // for logging
// sanity check
if (modality == CLIP_MODALITY_VISION) {
GGML_ASSERT(has_vision);
} else if (modality == CLIP_MODALITY_AUDIO) {
GGML_ASSERT(has_audio);
}
model.modality = modality;
// projector type
std::string proj_type;
{
// default key
get_string(KEY_PROJ_TYPE, proj_type, false);
// for models with mixed modalities
if (proj_type.empty()) {
if (modality == CLIP_MODALITY_VISION) {
get_string(KEY_VISION_PROJ_TYPE, proj_type, false);
} else if (modality == CLIP_MODALITY_AUDIO) {
get_string(KEY_AUDIO_PROJ_TYPE, proj_type, false);
} else {
GGML_ABORT("unknown modality");
}
}
model.proj_type = clip_projector_type_from_string(proj_type);
if (model.proj_type == PROJECTOR_TYPE_UNKNOWN) {
throw std::runtime_error(string_format("%s: unknown projector type: %s\n", __func__, proj_type.c_str()));
}
// correct arch for multimodal models (legacy method)
if (model.proj_type == PROJECTOR_TYPE_QWEN25O) {
model.proj_type = modality == CLIP_MODALITY_VISION
? PROJECTOR_TYPE_QWEN25VL
: PROJECTOR_TYPE_QWEN2A;
}
}
const bool is_vision = model.modality == CLIP_MODALITY_VISION;
const bool is_audio = model.modality == CLIP_MODALITY_AUDIO;
// other hparams
{
const char * prefix = is_vision ? "vision" : "audio";
get_u32(string_format(KEY_N_EMBD, prefix), hparams.n_embd);
get_u32(string_format(KEY_N_HEAD, prefix), hparams.n_head);
get_u32(string_format(KEY_N_FF, prefix), hparams.n_ff);
get_u32(string_format(KEY_N_BLOCK, prefix), hparams.n_layer);
get_u32(string_format(KEY_PROJ_DIM, prefix), hparams.projection_dim);
get_f32(string_format(KEY_LAYER_NORM_EPS, prefix), hparams.eps);
// n_head_kv is optional (for GQA), default to n_head
hparams.n_head_kv = hparams.n_head;
if (is_vision) {
get_u32(KEY_IMAGE_SIZE, hparams.image_size);
get_u32(KEY_PATCH_SIZE, hparams.patch_size);
get_i32(KEY_MINICPMV_VERSION, hparams.minicpmv_version, false); // legacy
get_u32(KEY_MINICPMV_QUERY_NUM, hparams.minicpmv_query_num, false);
if (hparams.minicpmv_query_num == 0) {
// Fallback to hardcoded values for legacy models
if (hparams.minicpmv_version == 3) {
hparams.minicpmv_query_num = 64;
} else if (hparams.minicpmv_version == 4) {
hparams.minicpmv_query_num = 64;
} else if (hparams.minicpmv_version == 5) {
hparams.minicpmv_query_num = 64;
} else if (hparams.minicpmv_version == 6) {
hparams.minicpmv_query_num = 64;
} else if (hparams.minicpmv_version == 100045) {
hparams.minicpmv_query_num = 64;
} else {
hparams.minicpmv_query_num = 96;
}
}
} else if (is_audio) {
get_u32(KEY_A_NUM_MEL_BINS, hparams.n_mel_bins);
// some hparams are unused, but still need to set to avoid issues
hparams.image_size = 0;
hparams.patch_size = 1;
} else {
GGML_ASSERT(false && "unknown modality");
}
// for pinpoints, we need to convert it into a list of resolution candidates
{
std::vector<int> pinpoints;
get_arr_int(KEY_IMAGE_GRID_PINPOINTS, pinpoints, false);
if (!pinpoints.empty()) {
for (size_t i = 0; i < pinpoints.size(); i += 2) {
hparams.image_res_candidates.push_back({
pinpoints[i],
pinpoints[i+1],
});
}
}
}
// default warmup value
hparams.warmup_image_size = hparams.image_size;
{
bool use_gelu = false;
bool use_silu = false;
get_bool(KEY_USE_GELU, use_gelu, false);
get_bool(KEY_USE_SILU, use_silu, false);
if (use_gelu && use_silu) {
throw std::runtime_error(string_format("%s: both use_gelu and use_silu are set to true\n", __func__));
}
if (use_gelu) {
hparams.ffn_op = FFN_GELU;
log_ffn_op = "gelu";
} else if (use_silu) {
hparams.ffn_op = FFN_SILU;
log_ffn_op = "silu";
} else {
hparams.ffn_op = FFN_GELU_QUICK;
log_ffn_op = "gelu_quick";
}
}
{
std::string mm_patch_merge_type;
get_string(KEY_MM_PATCH_MERGE_TYPE, mm_patch_merge_type, false);
if (mm_patch_merge_type == "spatial_unpad") {
hparams.mm_patch_merge_type = PATCH_MERGE_SPATIAL_UNPAD;
}
}
if (is_vision) {
int idx_mean = gguf_find_key(ctx_gguf.get(), KEY_IMAGE_MEAN);
int idx_std = gguf_find_key(ctx_gguf.get(), KEY_IMAGE_STD);
GGML_ASSERT(idx_mean >= 0 && "image_mean not found");
GGML_ASSERT(idx_std >= 0 && "image_std not found");
const float * mean_data = (const float *) gguf_get_arr_data(ctx_gguf.get(), idx_mean);
const float * std_data = (const float *) gguf_get_arr_data(ctx_gguf.get(), idx_std);
for (int i = 0; i < 3; ++i) {
hparams.image_mean[i] = mean_data[i];
hparams.image_std[i] = std_data[i];
}
}
// Load the vision feature layer indices if they are explicitly provided;
// if multiple vision feature layers are present, the values will be concatenated
// to form the final visual features.
// NOTE: gguf conversions should standardize the values of the vision feature layer to
// be non-negative, since we use -1 to mark values as unset here.
get_arr_int(KEY_FEATURE_LAYER, hparams.vision_feature_layer, false);
// model-specific params
switch (model.proj_type) {
case PROJECTOR_TYPE_MLP:
case PROJECTOR_TYPE_MLP_NORM:
case PROJECTOR_TYPE_LDP:
case PROJECTOR_TYPE_LDPV2:
case PROJECTOR_TYPE_COGVLM:
{
hparams.has_llava_projector = model.proj_type != PROJECTOR_TYPE_COGVLM;
hparams.image_pad_color = {122, 116, 104};
if (!hparams.image_res_candidates.empty()) {
hparams.image_resize_pad = PAD_CEIL;
hparams.image_resize_algo = RESIZE_ALGO_BILINEAR;
} else {
// llava-1.6 default params
hparams.image_pad_ov = PAD_NONE;
hparams.image_pad_rf = PAD_CEIL;
hparams.image_pad_color_rf = {122, 116, 104};
hparams.image_resize_algo_rf = RESIZE_ALGO_BICUBIC;
hparams.image_resize_algo_ov = RESIZE_ALGO_BILINEAR;
}
} break;
case PROJECTOR_TYPE_GLM_EDGE:
{
hparams.image_resize_pad = PAD_CEIL;
hparams.image_resize_algo = RESIZE_ALGO_BILINEAR;
} break;
case PROJECTOR_TYPE_MINICPMV:
{
// use default llava-uhd preprocessing params
if (hparams.minicpmv_version == 0) {
hparams.minicpmv_version = 2; // default to 2 if not set
}
} break;
case PROJECTOR_TYPE_MINICPMV4_6:
{
// MiniCPM-V 4.6 unified merger projector
// ViT merger 2x2 + final merger 2x2 = 4x spatial merge per dimension
hparams.n_merge = 4;
get_u32(KEY_PROJ_SCALE_FACTOR, hparams.n_merge, false);
// borrow wa_layer_indexes for vit_merger insertion point
std::vector<int> wa_layer_indexes_vec;
get_arr_int(KEY_WIN_ATTN_LAYER_INDEXES, wa_layer_indexes_vec, false);
if (!wa_layer_indexes_vec.empty()) {
hparams.insert_layer_id = wa_layer_indexes_vec[0];
}
} break;
case PROJECTOR_TYPE_INTERNVL:
{
// use default llava-uhd preprocessing params
// older version of internvl doesn't have min/max tiles, we need to provide default values for them to avoid issues
hparams.preproc_min_tiles = 1;
hparams.preproc_max_tiles = 12;
get_u32(KEY_PROJ_SCALE_FACTOR, hparams.n_merge, false);
get_u32(KEY_PREPROC_MIN_TILES, hparams.preproc_min_tiles, false);
get_u32(KEY_PREPROC_MAX_TILES, hparams.preproc_max_tiles, false);
GGML_ASSERT(hparams.preproc_min_tiles <= hparams.preproc_max_tiles && hparams.preproc_max_tiles < INT32_MAX);
set_internvl_dhr_res_candidates(model);
} break;
case PROJECTOR_TYPE_NEMOTRON_V2_VL:
{
get_u32(KEY_PROJ_SCALE_FACTOR, hparams.n_merge, false);
} break;
case PROJECTOR_TYPE_IDEFICS3:
{
// use default llava-uhd preprocessing params
get_u32(KEY_PROJ_SCALE_FACTOR, hparams.n_merge, false);
get_u32(KEY_PREPROC_IMAGE_SIZE, hparams.image_longest_edge, false);
} break;
case PROJECTOR_TYPE_LFM2:
{
hparams.image_resize_algo = RESIZE_ALGO_BILINEAR;
hparams.image_resize_algo_rf = RESIZE_ALGO_BILINEAR;
hparams.image_resize_algo_ov = RESIZE_ALGO_BILINEAR;
get_u32(KEY_PROJ_SCALE_FACTOR, hparams.n_merge, false);
// ref: https://huggingface.co/LiquidAI/LFM2.5-VL-1.6B/blob/main/processor_config.json
hparams.set_limit_image_tokens(64, 256);
} break;
case PROJECTOR_TYPE_PHI4:
{
hparams.n_merge = 1;
hparams.image_resize_algo = RESIZE_ALGO_BILINEAR;
get_u32(KEY_IMAGE_MIN_PIXELS, hparams.image_min_pixels);
get_u32(KEY_IMAGE_MAX_PIXELS, hparams.image_max_pixels);
hparams.set_warmup_n_tokens(16*16);
} break;
case PROJECTOR_TYPE_PIXTRAL:
{
// ref: https://huggingface.co/mistral-community/pixtral-12b/blob/main/preprocessor_config.json
// TODO: verify the image_min_tokens
hparams.n_merge = 1; // the original pixtral does not use patch merging
hparams.image_resize_algo = RESIZE_ALGO_BILINEAR;
hparams.rope_theta = 10000.0f;
get_u32(KEY_SPATIAL_MERGE_SIZE, hparams.n_merge, false);
hparams.set_limit_image_tokens(8, 1024);
hparams.set_warmup_n_tokens(256); // avoid OOM on warmup
} break;
case PROJECTOR_TYPE_LIGHTONOCR:
{
hparams.n_merge = 1;
hparams.image_resize_algo = RESIZE_ALGO_BICUBIC;
hparams.rope_theta = 10000.0f;
get_u32(KEY_SPATIAL_MERGE_SIZE, hparams.n_merge, false);
hparams.image_longest_edge = hparams.image_size;
get_u32(KEY_PREPROC_IMAGE_SIZE, hparams.image_longest_edge, false);
hparams.set_warmup_n_tokens(256); // avoid OOM on warmup
} break;
case PROJECTOR_TYPE_DOTS_OCR:
{
hparams.rope_theta = 10000.0f;
get_u32(KEY_PROJ_SCALE_FACTOR, hparams.n_merge);
get_u32(KEY_IMAGE_MIN_PIXELS, hparams.image_min_pixels);
get_u32(KEY_IMAGE_MAX_PIXELS, hparams.image_max_pixels);
hparams.set_warmup_n_tokens(46*46); // avoid OOM on warmup
} break;
case PROJECTOR_TYPE_KIMIVL:
{
hparams.image_resize_algo = RESIZE_ALGO_BILINEAR;
hparams.rope_theta = 10000.0f;
get_u32(KEY_PROJ_SCALE_FACTOR, hparams.n_merge, false);
// TODO: check kimivl preprocessor for exact values
hparams.set_limit_image_tokens(8, 1024);
hparams.set_warmup_n_tokens(256); // avoid OOM on warmup
} break;
case PROJECTOR_TYPE_KIMIK25:
{
hparams.image_resize_algo = RESIZE_ALGO_BICUBIC;
hparams.rope_theta = 10000.0f;
get_u32(KEY_PROJ_SCALE_FACTOR, hparams.n_merge, false);
int min_pixels = 0, max_pixels = 0;
get_u32(KEY_IMAGE_MIN_PIXELS, min_pixels, false);
get_u32(KEY_IMAGE_MAX_PIXELS, max_pixels, false);
if (min_pixels > 0 && max_pixels > 0) {
hparams.image_min_pixels = min_pixels;
hparams.image_max_pixels = max_pixels;
hparams.warmup_image_size = static_cast<int>(std::sqrt(max_pixels));
} else {
hparams.set_limit_image_tokens(2, 4096);
}
} break;
case PROJECTOR_TYPE_GEMMA3:
{
// default value (used by all model sizes in gemma 3 family)
// number of patches for each **side** is reduced by a factor of 4
hparams.n_merge = 4;
hparams.image_resize_algo = RESIZE_ALGO_BILINEAR;
// test model (tinygemma3) has a different value, we optionally read it
get_u32(KEY_PROJ_SCALE_FACTOR, hparams.n_merge, false);
} break;
case PROJECTOR_TYPE_GEMMA4V:
case PROJECTOR_TYPE_GEMMA4UV:
{
hparams.rope_theta = 100.0f;
hparams.n_merge = 3; // pooling_kernel_size
hparams.image_resize_algo = RESIZE_ALGO_BILINEAR;
get_u32(KEY_PROJ_SCALE_FACTOR, hparams.n_merge, false);
if (model.proj_type == PROJECTOR_TYPE_GEMMA4UV) {
// for "unified" variant, we directly use a bigger patch size, because the "token merging" is done directly on conv layer
hparams.patch_size = hparams.patch_size * hparams.n_merge;
hparams.n_merge = 1;
}
// @ngxson : the model performs quite poor with small images, we need to bump minimum image tokens to 40 to avoid that
hparams.set_limit_image_tokens(40, 280);
hparams.set_warmup_n_tokens(256); // avoid OOM on warmup
} break;
case PROJECTOR_TYPE_GEMMA3NV:
{
// Gemma3n uses MobileNetV5 which produces 256 tokens (16x16)
// Similar configuration to Gemma3
hparams.n_merge = 1; // MobileNetV5 handles resizing internally
get_u32(KEY_PROJ_SCALE_FACTOR, hparams.n_merge, false);
} break;
case PROJECTOR_TYPE_QWEN2VL:
case PROJECTOR_TYPE_QWEN25VL:
case PROJECTOR_TYPE_QWEN3VL:
{
hparams.n_merge = 2; // default value for Qwen 2 and 2.5
hparams.image_resize_algo = RESIZE_ALGO_BILINEAR;
get_u32(KEY_SPATIAL_MERGE_SIZE, hparams.n_merge, false);
get_u32(KEY_WIN_ATTN_PATTERN, hparams.n_wa_pattern, model.proj_type == PROJECTOR_TYPE_QWEN25VL); // only 2.5 requires it
// ref: https://huggingface.co/Qwen/Qwen2.5-VL-7B-Instruct/blob/main/preprocessor_config.json
hparams.set_limit_image_tokens(8, 4096);
hparams.set_warmup_n_tokens(46*46); // avoid OOM on warmup
const int warn_min_pixels = 1024 * hparams.n_merge * hparams.n_merge * hparams.patch_size * hparams.patch_size;
if (hparams.image_min_pixels < warn_min_pixels) {
LOG_WRN("%s: Qwen-VL models require at minimum 1024 image tokens to function correctly on grounding tasks\n", __func__);
LOG_WRN("%s: if you encounter problems with accuracy, try adding --image-min-tokens 1024\n", __func__);
LOG_WRN("%s: more info: https://github.com/ggml-org/llama.cpp/issues/16842\n\n", __func__);
}
} break;
case PROJECTOR_TYPE_MIMOVL:
{
hparams.n_merge = 2; // spatial_merge_size
hparams.image_resize_algo = RESIZE_ALGO_BICUBIC_PILLOW;
get_u32(KEY_SPATIAL_MERGE_SIZE, hparams.n_merge, false);
get_u32(string_format(KEY_N_HEAD_KV, "vision"), hparams.n_head_kv);
// 1D banded sliding-window radius (visual_token_window_size); required
get_u32(KEY_ATTN_WINDOW_SIZE, hparams.attn_window_size);
std::vector<int> pat;
get_arr_int(KEY_WA_PATTERN_MODE, pat, true);
GGML_ASSERT((int) pat.size() == hparams.n_layer && "mimovl wa_pattern_mode length must equal n_layer");
hparams.wa_pattern_mode.assign(pat.begin(), pat.end());
get_u32(KEY_IMAGE_MIN_PIXELS, hparams.image_min_pixels);
get_u32(KEY_IMAGE_MAX_PIXELS, hparams.image_max_pixels);
hparams.set_warmup_n_tokens(46*46); // avoid OOM on warmup
} break;
case PROJECTOR_TYPE_STEP3VL:
{
hparams.n_merge = 4; // two stride-2 downsamplers after patching
get_u32(KEY_PROJ_SCALE_FACTOR, hparams.n_merge, false);
hparams.rope_theta = 10000.0f;
get_u32(KEY_PREPROC_IMAGE_SIZE, hparams.image_longest_edge, false);
if (hparams.image_longest_edge == 0) {
hparams.image_longest_edge = 3024;
}
hparams.warmup_image_size = hparams.image_size;
} break;
case PROJECTOR_TYPE_YOUTUVL:
{
hparams.n_merge = 2;
hparams.image_resize_algo = RESIZE_ALGO_BILINEAR;
hparams.image_resize_pad = PAD_NONE;
get_u32(KEY_SPATIAL_MERGE_SIZE, hparams.n_merge, false);
get_u32(KEY_ATTN_WINDOW_SIZE, hparams.attn_window_size, true);
std::vector<int> wa_layer_indexes_vec;
get_arr_int(KEY_WIN_ATTN_LAYER_INDEXES, wa_layer_indexes_vec, true);
for (auto & layer : wa_layer_indexes_vec) {
hparams.wa_layer_indexes.insert(layer);
}
// support max_height * max_width = 8000 * 8000. 8000/16/2 = 250 image tokens
hparams.set_limit_image_tokens(1, 62500);
hparams.set_warmup_n_tokens(16*16); // avoid OOM on warmup
} break;
case PROJECTOR_TYPE_YASA2:
{
hparams.ffn_op = FFN_GELU_ERF;
log_ffn_op = "gelu_erf";
hparams.image_resize_algo = RESIZE_ALGO_BICUBIC;
// reka model performs better when using resize_bicubic, which stretches
// the image to fit fixed square size
hparams.image_resize_pad = PAD_NONE;
} break;
case PROJECTOR_TYPE_GLM4V:
{
hparams.rope_theta = 10000.0f;
hparams.n_merge = 2; // default value for GLM4-V
hparams.image_resize_algo = RESIZE_ALGO_BILINEAR;
get_u32(KEY_SPATIAL_MERGE_SIZE, hparams.n_merge, false);
hparams.set_limit_image_tokens(8, 4096);
hparams.set_warmup_n_tokens(46*46); // avoid OOM on warmup
} break;
case PROJECTOR_TYPE_LLAMA4:
{
hparams.rope_theta = 10000.0f;
get_u32(KEY_PROJ_SCALE_FACTOR, hparams.n_merge, false);
set_llava_uhd_res_candidates(model, 3);
} break;
case PROJECTOR_TYPE_ULTRAVOX:
case PROJECTOR_TYPE_QWEN2A:
case PROJECTOR_TYPE_QWEN3A:
case PROJECTOR_TYPE_GLMA:
case PROJECTOR_TYPE_VOXTRAL:
case PROJECTOR_TYPE_MERALION:
case PROJECTOR_TYPE_MUSIC_FLAMINGO:
{
bool require_stack = model.proj_type == PROJECTOR_TYPE_ULTRAVOX ||
model.proj_type == PROJECTOR_TYPE_VOXTRAL ||
model.proj_type == PROJECTOR_TYPE_MERALION ||
model.proj_type == PROJECTOR_TYPE_GLMA;
get_u32(KEY_A_PROJ_STACK_FACTOR, hparams.proj_stack_factor, require_stack);
hparams.ffn_op = FFN_GELU_ERF;
log_ffn_op = "gelu_erf"; // temporary solution for logging
// audio preprocessing params
hparams.audio_chunk_len = 30; // in seconds
hparams.audio_sample_rate = 16000;
hparams.audio_n_fft = 400;
hparams.audio_window_len = 400;
hparams.audio_hop_len = 160;
} break;
case PROJECTOR_TYPE_PADDLEOCR:
{
hparams.n_merge = 2;
hparams.image_resize_algo = RESIZE_ALGO_BILINEAR;
get_u32(KEY_IMAGE_MIN_PIXELS, hparams.image_min_pixels);
get_u32(KEY_IMAGE_MAX_PIXELS, hparams.image_max_pixels);
hparams.set_warmup_n_tokens(28*28); // avoid OOM on warmup
} break;
case PROJECTOR_TYPE_DEEPSEEKOCR:
case PROJECTOR_TYPE_DEEPSEEKOCR2:
{
hparams.patch_size = 16;
hparams.image_size = 1024;
hparams.warmup_image_size = 1024;
hparams.image_resize_algo = RESIZE_ALGO_BICUBIC_PILLOW;
hparams.image_pad_color = {127, 127, 127};
get_u32(KEY_SAM_N_BLOCK, hparams.sam_n_layer, true);
get_u32(KEY_SAM_N_HEAD, hparams.sam_n_head, true);
get_u32(KEY_SAM_N_EMBD, hparams.sam_n_embd, true);
get_u32(KEY_ATTN_WINDOW_SIZE, hparams.attn_window_size, true);
if (model.proj_type == PROJECTOR_TYPE_DEEPSEEKOCR2) {
// qwen2 encoder is GQA, requires KEY_N_HEAD_KV
get_u32(string_format(KEY_N_HEAD_KV, "vision"), hparams.n_head_kv);
}
} break;
case PROJECTOR_TYPE_HUNYUANVL:
{
hparams.n_merge = 2;
hparams.image_resize_algo = RESIZE_ALGO_BICUBIC_PILLOW;
hparams.image_resize_pad = PAD_NONE;
hparams.ffn_op = FFN_GELU;
hparams.set_limit_image_tokens(256, 16384);
get_u32(KEY_SPATIAL_MERGE_SIZE, hparams.n_merge, false);
get_u32(KEY_IMAGE_MIN_PIXELS, hparams.image_min_pixels, false);
get_u32(KEY_IMAGE_MAX_PIXELS, hparams.image_max_pixels, false);
hparams.set_warmup_n_tokens(32*32);
} break;
case PROJECTOR_TYPE_LFM2A:
{
// audio preprocessing params
hparams.audio_chunk_len = 1; // in seconds
hparams.audio_sample_rate = 16000;
hparams.audio_n_fft = 512;
hparams.audio_window_len = 400;
hparams.audio_hop_len = 160;
} break;
case PROJECTOR_TYPE_EXAONE4_5:
{
hparams.n_merge = 2;
get_u32(KEY_SPATIAL_MERGE_SIZE, hparams.n_merge, false);
get_u32(KEY_WIN_ATTN_PATTERN, hparams.n_wa_pattern, false);
get_u32(KEY_IMAGE_MIN_PIXELS, hparams.image_min_pixels);
get_u32(KEY_IMAGE_MAX_PIXELS, hparams.image_max_pixels);
hparams.set_warmup_n_tokens(46 * 46);
if (hparams.rope_theta <= 0.0f) {
hparams.rope_theta = 10000.0f;
}
get_u32(string_format(KEY_N_HEAD_KV, "vision"), hparams.n_head_kv);
} break;
case PROJECTOR_TYPE_GEMMA4A:
{
// Gemma4 feature_extraction_gemma4.py:
// frame_length_ms=20 -> 320 samples, n_fft=512, hop=10ms -> 160
hparams.audio_chunk_len = 0; // no fixed-length padding
hparams.audio_sample_rate = 16000;
hparams.audio_n_fft = 512;
hparams.audio_window_len = 320; // 20ms frame (NOT 25ms/400)
hparams.audio_hop_len = 160;
// due to a mistake in the original conversion code, rms_norm_eps is set to a wrong value
// since all gemma4a models use 1e-6, we just hardcode it here to avoid re-conversion
hparams.eps = 1e-6f;
} break;
case PROJECTOR_TYPE_GEMMA4UA:
{
// Encoder-free: raw 16 kHz waveform chunked into 640-sample frames.
hparams.audio_chunk_len = 0;
hparams.audio_sample_rate = 16000;
hparams.eps = 1e-6f;
hparams.n_mel_bins = 640;
} break;
case PROJECTOR_TYPE_GRANITE_SPEECH:
{
hparams.audio_chunk_len = 0;
hparams.audio_sample_rate = 16000;
hparams.audio_n_fft = 512;
hparams.audio_window_len = 400;
hparams.audio_hop_len = 160;
get_u32(KEY_A_CHUNK_SIZE, hparams.audio_chunk_size);
get_u32(KEY_A_CONV_KERNEL_SIZE, hparams.audio_conv_kernel_size);
get_u32(KEY_A_MAX_POS_EMB, hparams.audio_max_pos_emb);
get_u32(KEY_A_PROJ_WINDOW_SIZE, hparams.audio_proj_window_size);
get_u32(KEY_A_PROJ_DOWNSAMPLE_RATE, hparams.audio_proj_downsample_rate);
get_u32(KEY_A_PROJ_HEAD_COUNT, hparams.audio_proj_head_count);
} break;
case PROJECTOR_TYPE_JANUS_PRO:
{
hparams.image_pad_color = {127, 127, 127};
hparams.image_resize_algo = RESIZE_ALGO_BILINEAR;
} break;
case PROJECTOR_TYPE_GRANITE4_VISION:
{
// SigLIP tower.
hparams.image_resize_algo = RESIZE_ALGO_BICUBIC_PILLOW;
hparams.image_resize_pad = PAD_CEIL;
get_arr_int(KEY_FEATURE_LAYER, hparams.vision_feature_layer);
get_arr_int(KEY_PROJ_SPATIAL_OFFSETS, hparams.proj_spatial_offsets);
if (hparams.vision_feature_layer.size() != hparams.proj_spatial_offsets.size()) {
throw std::runtime_error(string_format("%s: vision_feature_layer.size() %d != proj_spatial_offsets.size() %d",
hparams.vision_feature_layer.size(), hparams.proj_spatial_offsets.size()));
}
get_u32(KEY_PROJ_SAMPLE_QUERY_SIDE, hparams.downsample_query_side);
get_u32(KEY_PROJ_SAMPLE_WINDOW_SIDE, hparams.downsample_window_side);
hparams.warmup_image_size = hparams.image_size;
} break;
default:
throw std::runtime_error(string_format("%s: unknown vision projector type %s\n", __func__, proj_type.c_str()));
}
// sanity check
{
if (hparams.image_size < 0) {
// note: some models having hparams.image_size == 0, which means the image size is dynamic
throw std::runtime_error(string_format("%s: image_size (%d) cannot be negative\n", __func__, hparams.image_size));
}
if (hparams.image_size > 65536) {
throw std::runtime_error(string_format("%s: image_size (%d) is too large (max 65536)\n", __func__, hparams.image_size));
}
if (hparams.patch_size <= 0) {
throw std::runtime_error(string_format("%s: patch_size (%d) must be greater than 0\n", __func__, hparams.patch_size));
}
if (hparams.n_embd <= 0) {
throw std::runtime_error(string_format("%s: n_embd (%d) must be greater than 0\n", __func__, hparams.n_embd));
}
if (hparams.image_max_pixels < hparams.image_min_pixels) {
throw std::runtime_error(string_format("%s: image_max_pixels (%d) is less than image_min_pixels (%d)\n", __func__, hparams.image_max_pixels, hparams.image_min_pixels));
}
}
LOG_INF("%s: projector: %s\n", __func__, proj_type.c_str());
LOG_INF("%s: n_embd: %d\n", __func__, hparams.n_embd);
LOG_INF("%s: n_head: %d\n", __func__, hparams.n_head);
LOG_INF("%s: n_ff: %d\n", __func__, hparams.n_ff);
LOG_INF("%s: n_layer: %d\n", __func__, hparams.n_layer);
LOG_INF("%s: ffn_op: %s\n", __func__, log_ffn_op.c_str());
LOG_INF("%s: projection_dim: %d\n", __func__, hparams.projection_dim);
if (is_vision) {
LOG_INF("\n--- vision hparams ---\n");
LOG_INF("%s: image_size: %d\n", __func__, hparams.image_size);
LOG_INF("%s: patch_size: %d\n", __func__, hparams.patch_size);
LOG_INF("%s: has_llava_proj: %d\n", __func__, hparams.has_llava_projector);
LOG_INF("%s: minicpmv_version: %d\n", __func__, hparams.minicpmv_version);
LOG_INF("%s: n_merge: %d\n", __func__, hparams.n_merge);
LOG_INF("%s: n_wa_pattern: %d\n", __func__, hparams.n_wa_pattern);
if (!hparams.wa_layer_indexes.empty()) {
LOG_INF("%s: wa_layer_indexes: ", __func__);
for (auto & layer : hparams.wa_layer_indexes) {
LOG_INF("%d ", layer);
}
LOG_INF("\n");
}
if (hparams.image_min_pixels > 0) {
LOG_INF("%s: image_min_pixels: %d%s\n", __func__, hparams.image_min_pixels, hparams.custom_image_min_tokens > 0 ? " (custom value)" : "");
}
if (hparams.image_max_pixels > 0) {
LOG_INF("%s: image_max_pixels: %d%s\n", __func__, hparams.image_max_pixels, hparams.custom_image_max_tokens > 0 ? " (custom value)" : "");
}
} else if (is_audio) {
LOG_INF("\n--- audio hparams ---\n");
LOG_INF("%s: n_mel_bins: %d\n", __func__, hparams.n_mel_bins);
LOG_INF("%s: proj_stack_factor: %d\n", __func__, hparams.proj_stack_factor);
LOG_INF("%s: audio_chunk_len: %d\n", __func__, hparams.audio_chunk_len);
LOG_INF("%s: audio_sample_rate: %d\n", __func__, hparams.audio_sample_rate);
LOG_INF("%s: audio_n_fft: %d\n", __func__, hparams.audio_n_fft);
LOG_INF("%s: audio_window_len: %d\n", __func__, hparams.audio_window_len);
LOG_INF("%s: audio_hop_len: %d\n", __func__, hparams.audio_hop_len);
// GEMMA4UA is encoder-free: it uses n_mel_bins as a raw-waveform frame size (640) and has no FFT/filterbank, so the mel-range and FFT
// checks below do not apply to it.
const bool fft_based = model.proj_type != PROJECTOR_TYPE_GEMMA4UA;
// Validate audio hparams loaded from GGUF metadata
if (hparams.n_mel_bins <= 0 || (fft_based && hparams.n_mel_bins > 256)) {
throw std::runtime_error(string_format("%s: n_mel_bins (%d) must be in range [1, 256]\n", __func__, hparams.n_mel_bins));
}
if (fft_based && (hparams.audio_sample_rate <= 0 || hparams.audio_n_fft <= 0 || hparams.audio_hop_len <= 0 || hparams.audio_window_len <= 0)) {
throw std::runtime_error(string_format("%s: audio hparams invalid: sample_rate=%d n_fft=%d window_len=%d hop_len=%d\n",
__func__, hparams.audio_sample_rate, hparams.audio_n_fft, hparams.audio_window_len, hparams.audio_hop_len));
}
}
LOG_INF("\n");
LOG_INF("%s: model size: %.2f MiB\n", __func__, model_size / 1024.0 / 1024.0);
LOG_INF("%s: metadata size: %.2f MiB\n", __func__, ggml_get_mem_size(ctx_meta.get()) / 1024.0 / 1024.0);
}
}
void load_tensors(clip_ctx & ctx_clip) {
auto & model = ctx_clip.model;
auto & hparams = model.hparams;
std::map<std::string, size_t> tensor_offset;
std::vector<ggml_tensor *> tensors_to_load;
auto fin = open_ifstream_binary(fname);
if (!fin) {
throw std::runtime_error(string_format("%s: failed to open %s\n", __func__, fname.c_str()));
}
// TODO @ngxson : support both audio and video in the future
const char * prefix = model.modality == CLIP_MODALITY_AUDIO ? "a" : "v";
// get offsets
for (int64_t i = 0; i < gguf_get_n_tensors(ctx_gguf.get()); ++i) {
const char * name = gguf_get_tensor_name(ctx_gguf.get(), i);
tensor_offset[name] = gguf_get_data_offset(ctx_gguf.get()) + gguf_get_tensor_offset(ctx_gguf.get(), i);
}
// create data context
struct ggml_init_params params = {
/*.mem_size =*/ static_cast<size_t>(gguf_get_n_tensors(ctx_gguf.get()) + 1) * ggml_tensor_overhead(),
/*.mem_buffer =*/ NULL,
/*.no_alloc =*/ true,
};
ctx_clip.ctx_data.reset(ggml_init(params));
if (!ctx_clip.ctx_data) {
throw std::runtime_error(string_format("%s: failed to init ggml context\n", __func__));
}
// helper function
std::unordered_set<std::string> loaded_tensor_names;
auto get_tensor = [&](const std::string & name, bool required = true) {
// Each tensor should only be loaded once; duplicates indicate a bug
if (loaded_tensor_names.count(name)) {
throw std::runtime_error(string_format("%s: tensor already loaded: %s\n", __func__, name.c_str()));
}
ggml_tensor * cur = ggml_get_tensor(ctx_meta.get(), name.c_str());
if (!cur && required) {
throw std::runtime_error(string_format("%s: unable to find tensor %s\n", __func__, name.c_str()));
}
if (cur) {
tensors_to_load.push_back(cur);
ggml_tensor * data_tensor = ggml_dup_tensor(ctx_clip.ctx_data.get(), cur);
ggml_set_name(data_tensor, cur->name);
loaded_tensor_names.insert(name);
cur = data_tensor;
// add to weight memory counter
ctx_clip.mem_usage[ggml_backend_get_device(ctx_clip.backend)] += ggml_nbytes(cur);
}
return cur;
};
auto get_scalar = [&](const std::string & name, float default_val) {
auto it = tensor_offset.find(name);
if (it == tensor_offset.end()) {
return default_val;
}
size_t offset = it->second;
fin.seekg(offset, std::ios::beg);
float value;
fin.read(reinterpret_cast<char*>(&value), sizeof(float));
return value;
};
model.class_embedding = get_tensor(TN_CLASS_EMBD, false);
model.pre_ln_w = get_tensor(string_format(TN_LN_PRE, prefix, "weight"), false);
model.pre_ln_b = get_tensor(string_format(TN_LN_PRE, prefix, "bias"), false);
model.post_ln_w = get_tensor(string_format(TN_LN_POST, prefix, "weight"), false);
model.post_ln_b = get_tensor(string_format(TN_LN_POST, prefix, "bias"), false);
model.patch_bias = get_tensor(TN_PATCH_BIAS, false);
model.patch_embeddings_0 = get_tensor(TN_PATCH_EMBD, false);
model.patch_embeddings_1 = get_tensor(TN_PATCH_EMBD_1, false);
model.norm_embd_w = get_tensor(string_format(TN_NORM_EMBD, "weight"), false);
model.norm_embd_b = get_tensor(string_format(TN_NORM_EMBD, "bias"), false);
model.position_embeddings = get_tensor(string_format(TN_POS_EMBD, prefix), false);
const bool has_standard_layers = (
model.proj_type != PROJECTOR_TYPE_GEMMA3NV);
// layers
const int n_layers_to_load = has_standard_layers ? hparams.n_layer : 0;
model.layers.resize(n_layers_to_load);
for (int il = 0; il < n_layers_to_load; ++il) {
auto & layer = model.layers[il];
layer.k_w = get_tensor(string_format(TN_ATTN_K, prefix, il, "weight"), false);
layer.q_w = get_tensor(string_format(TN_ATTN_Q, prefix, il, "weight"), false);
layer.v_w = get_tensor(string_format(TN_ATTN_V, prefix, il, "weight"), false);
layer.o_w = get_tensor(string_format(TN_ATTN_OUTPUT, prefix, il, "weight"));
layer.qkv_w = get_tensor(string_format(TN_ATTN_QKV, prefix, il, "weight"), false);
layer.k_norm = get_tensor(string_format(TN_ATTN_K_NORM, prefix, il, "weight"), false);
layer.q_norm = get_tensor(string_format(TN_ATTN_Q_NORM, prefix, il, "weight"), false);
layer.ln_1_w = get_tensor(string_format(TN_LN_1, prefix, il, "weight"), false);
layer.ln_2_w = get_tensor(string_format(TN_LN_2, prefix, il, "weight"), false);
layer.ls_1_w = get_tensor(string_format(TN_LS_1, prefix, il, "weight"), false); // no bias
layer.ls_2_w = get_tensor(string_format(TN_LS_2, prefix, il, "weight"), false); // no bias
layer.ls_out_w = get_tensor(string_format(TN_LS_OUT, prefix, il, "weight"), false); // no bias
layer.attn_post_norm_w = get_tensor(string_format(TN_ATTN_POST_NORM, prefix, il, "weight"), false); // no bias
layer.ff_post_norm_w = get_tensor(string_format(TN_FFN_POST_NORM, prefix, il, "weight"), false); // no bias
layer.k_b = get_tensor(string_format(TN_ATTN_K, prefix, il, "bias"), false);
layer.q_b = get_tensor(string_format(TN_ATTN_Q, prefix, il, "bias"), false);
layer.v_b = get_tensor(string_format(TN_ATTN_V, prefix, il, "bias"), false);
layer.o_b = get_tensor(string_format(TN_ATTN_OUTPUT, prefix, il, "bias"), false);
layer.qkv_b = get_tensor(string_format(TN_ATTN_QKV, prefix, il, "bias"), false);
layer.ln_1_b = get_tensor(string_format(TN_LN_1, prefix, il, "bias"), false);
layer.ln_2_b = get_tensor(string_format(TN_LN_2, prefix, il, "bias"), false);
// ffn
layer.ff_up_w = get_tensor(string_format(TN_FFN_UP, prefix, il, "weight"));
layer.ff_up_b = get_tensor(string_format(TN_FFN_UP, prefix, il, "bias"), false);
layer.ff_gate_w = get_tensor(string_format(TN_FFN_GATE, prefix, il, "weight"), false);
layer.ff_gate_b = get_tensor(string_format(TN_FFN_GATE, prefix, il, "bias"), false);
layer.ff_down_w = get_tensor(string_format(TN_FFN_DOWN, prefix, il, "weight"));
layer.ff_down_b = get_tensor(string_format(TN_FFN_DOWN, prefix, il, "bias"), false);
// mimovl per-head attention sink bias
layer.attn_sinks = get_tensor(string_format(TN_ATTN_SINKS, prefix, il), false);
// qwen3vl deepstack layer
layer.deepstack_norm_w = get_tensor(string_format(TN_DEEPSTACK_NORM, il, "weight"), false);
layer.deepstack_norm_b = get_tensor(string_format(TN_DEEPSTACK_NORM, il, "bias"), false);
layer.deepstack_fc1_w = get_tensor(string_format(TN_DEEPSTACK_FC1, il, "weight"), false);
layer.deepstack_fc1_b = get_tensor(string_format(TN_DEEPSTACK_FC1, il, "bias"), false);
layer.deepstack_fc2_w = get_tensor(string_format(TN_DEEPSTACK_FC2, il, "weight"), false);
layer.deepstack_fc2_b = get_tensor(string_format(TN_DEEPSTACK_FC2, il, "bias"), false);
if (layer.has_deepstack()) {
model.n_deepstack_layers++;
}
// some models already exported with legacy (incorrect) naming which is quite messy, let's fix it here
// note: Qwen model converted from the old surgery script has n_ff = 0, so we cannot use n_ff to check!
bool is_ffn_swapped = (
// only old models need this fix
model.proj_type == PROJECTOR_TYPE_MLP
|| model.proj_type == PROJECTOR_TYPE_MLP_NORM
|| model.proj_type == PROJECTOR_TYPE_LDP
|| model.proj_type == PROJECTOR_TYPE_LDPV2
|| model.proj_type == PROJECTOR_TYPE_QWEN2VL
|| model.proj_type == PROJECTOR_TYPE_QWEN25VL
|| model.proj_type == PROJECTOR_TYPE_EXAONE4_5
|| model.proj_type == PROJECTOR_TYPE_GLM_EDGE
|| model.proj_type == PROJECTOR_TYPE_GEMMA3
|| model.proj_type == PROJECTOR_TYPE_IDEFICS3
|| model.proj_type == PROJECTOR_TYPE_MINICPMV
|| model.proj_type == PROJECTOR_TYPE_MINICPMV4_6
) && layer.ff_up_w && layer.ff_down_w && layer.ff_down_w->ne[0] == hparams.n_embd;
if (is_ffn_swapped) {
// swap up and down weights
ggml_tensor * tmp = layer.ff_up_w;
layer.ff_up_w = layer.ff_down_w;
layer.ff_down_w = tmp;
// swap up and down biases
tmp = layer.ff_up_b;
layer.ff_up_b = layer.ff_down_b;
layer.ff_down_b = tmp;
if (il == 0) {
LOG_WRN("%s: ffn up/down are swapped\n", __func__);
}
}
}
switch (model.proj_type) {
case PROJECTOR_TYPE_MLP:
case PROJECTOR_TYPE_MLP_NORM:
{
// LLaVA projection
model.mm_0_w = get_tensor(string_format(TN_LLAVA_PROJ, 0, "weight"), false);
model.mm_0_b = get_tensor(string_format(TN_LLAVA_PROJ, 0, "bias"), false);
// Yi-type llava
model.mm_1_w = get_tensor(string_format(TN_LLAVA_PROJ, 1, "weight"), false);
model.mm_1_b = get_tensor(string_format(TN_LLAVA_PROJ, 1, "bias"), false);
// missing in Yi-type llava
model.mm_2_w = get_tensor(string_format(TN_LLAVA_PROJ, 2, "weight"), false);
model.mm_2_b = get_tensor(string_format(TN_LLAVA_PROJ, 2, "bias"), false);
// Yi-type llava
model.mm_3_w = get_tensor(string_format(TN_LLAVA_PROJ, 3, "weight"), false);
model.mm_3_b = get_tensor(string_format(TN_LLAVA_PROJ, 3, "bias"), false);
model.mm_4_w = get_tensor(string_format(TN_LLAVA_PROJ, 4, "weight"), false);
model.mm_4_b = get_tensor(string_format(TN_LLAVA_PROJ, 4, "bias"), false);
if (model.mm_3_w) {
// TODO: this is a hack to support Yi-type llava
model.proj_type = PROJECTOR_TYPE_MLP_NORM;
}
model.image_newline = get_tensor(TN_IMAGE_NEWLINE, false);
} break;
case PROJECTOR_TYPE_LDP:
{
// MobileVLM projection
model.mm_model_mlp_1_w = get_tensor(string_format(TN_MVLM_PROJ_MLP, 1, "weight"));
model.mm_model_mlp_1_b = get_tensor(string_format(TN_MVLM_PROJ_MLP, 1, "bias"));
model.mm_model_mlp_3_w = get_tensor(string_format(TN_MVLM_PROJ_MLP, 3, "weight"));
model.mm_model_mlp_3_b = get_tensor(string_format(TN_MVLM_PROJ_MLP, 3, "bias"));
model.mm_model_block_1_block_0_0_w = get_tensor(string_format(TN_MVLM_PROJ_BLOCK, 1, 0, "0.weight"));
model.mm_model_block_1_block_0_1_w = get_tensor(string_format(TN_MVLM_PROJ_BLOCK, 1, 0, "1.weight"));
model.mm_model_block_1_block_0_1_b = get_tensor(string_format(TN_MVLM_PROJ_BLOCK, 1, 0, "1.bias"));
model.mm_model_block_1_block_1_fc1_w = get_tensor(string_format(TN_MVLM_PROJ_BLOCK, 1, 1, "fc1.weight"));
model.mm_model_block_1_block_1_fc1_b = get_tensor(string_format(TN_MVLM_PROJ_BLOCK, 1, 1, "fc1.bias"));
model.mm_model_block_1_block_1_fc2_w = get_tensor(string_format(TN_MVLM_PROJ_BLOCK, 1, 1, "fc2.weight"));
model.mm_model_block_1_block_1_fc2_b = get_tensor(string_format(TN_MVLM_PROJ_BLOCK, 1, 1, "fc2.bias"));
model.mm_model_block_1_block_2_0_w = get_tensor(string_format(TN_MVLM_PROJ_BLOCK, 1, 2, "0.weight"));
model.mm_model_block_1_block_2_1_w = get_tensor(string_format(TN_MVLM_PROJ_BLOCK, 1, 2, "1.weight"));
model.mm_model_block_1_block_2_1_b = get_tensor(string_format(TN_MVLM_PROJ_BLOCK, 1, 2, "1.bias"));
model.mm_model_block_2_block_0_0_w = get_tensor(string_format(TN_MVLM_PROJ_BLOCK, 2, 0, "0.weight"));
model.mm_model_block_2_block_0_1_w = get_tensor(string_format(TN_MVLM_PROJ_BLOCK, 2, 0, "1.weight"));
model.mm_model_block_2_block_0_1_b = get_tensor(string_format(TN_MVLM_PROJ_BLOCK, 2, 0, "1.bias"));
model.mm_model_block_2_block_1_fc1_w = get_tensor(string_format(TN_MVLM_PROJ_BLOCK, 2, 1, "fc1.weight"));
model.mm_model_block_2_block_1_fc1_b = get_tensor(string_format(TN_MVLM_PROJ_BLOCK, 2, 1, "fc1.bias"));
model.mm_model_block_2_block_1_fc2_w = get_tensor(string_format(TN_MVLM_PROJ_BLOCK, 2, 1, "fc2.weight"));
model.mm_model_block_2_block_1_fc2_b = get_tensor(string_format(TN_MVLM_PROJ_BLOCK, 2, 1, "fc2.bias"));
model.mm_model_block_2_block_2_0_w = get_tensor(string_format(TN_MVLM_PROJ_BLOCK, 2, 2, "0.weight"));
model.mm_model_block_2_block_2_1_w = get_tensor(string_format(TN_MVLM_PROJ_BLOCK, 2, 2, "1.weight"));
model.mm_model_block_2_block_2_1_b = get_tensor(string_format(TN_MVLM_PROJ_BLOCK, 2, 2, "1.bias"));
} break;
case PROJECTOR_TYPE_LDPV2:
{
// MobilVLM_V2 projection
model.mm_model_mlp_0_w = get_tensor(string_format(TN_MVLM_PROJ_MLP, 0, "weight"));
model.mm_model_mlp_0_b = get_tensor(string_format(TN_MVLM_PROJ_MLP, 0, "bias"));
model.mm_model_mlp_2_w = get_tensor(string_format(TN_MVLM_PROJ_MLP, 2, "weight"));
model.mm_model_mlp_2_b = get_tensor(string_format(TN_MVLM_PROJ_MLP, 2, "bias"));
model.mm_model_peg_0_w = get_tensor(string_format(TN_MVLM_PROJ_PEG, 0, "weight"));
model.mm_model_peg_0_b = get_tensor(string_format(TN_MVLM_PROJ_PEG, 0, "bias"));
} break;
case PROJECTOR_TYPE_MINICPMV:
{
// model.mm_model_pos_embed = get_tensor(new_clip->ctx_data, TN_MINICPMV_POS_EMBD);
model.mm_model_pos_embed_k = get_tensor(TN_MINICPMV_POS_EMBD_K);
model.mm_model_query = get_tensor(TN_MINICPMV_QUERY);
model.mm_model_proj = get_tensor(TN_MINICPMV_PROJ);
model.mm_model_kv_proj = get_tensor(TN_MINICPMV_KV_PROJ);
model.mm_model_attn_q_w = get_tensor(string_format(TN_MINICPMV_ATTN, "q", "weight"));
model.mm_model_attn_k_w = get_tensor(string_format(TN_MINICPMV_ATTN, "k", "weight"));
model.mm_model_attn_v_w = get_tensor(string_format(TN_MINICPMV_ATTN, "v", "weight"));
model.mm_model_attn_q_b = get_tensor(string_format(TN_MINICPMV_ATTN, "q", "bias"));
model.mm_model_attn_k_b = get_tensor(string_format(TN_MINICPMV_ATTN, "k", "bias"));
model.mm_model_attn_v_b = get_tensor(string_format(TN_MINICPMV_ATTN, "v", "bias"));
model.mm_model_attn_o_w = get_tensor(string_format(TN_MINICPMV_ATTN, "out", "weight"));
model.mm_model_attn_o_b = get_tensor(string_format(TN_MINICPMV_ATTN, "out", "bias"));
model.mm_model_ln_q_w = get_tensor(string_format(TN_MINICPMV_LN, "q", "weight"));
model.mm_model_ln_q_b = get_tensor(string_format(TN_MINICPMV_LN, "q", "bias"));
model.mm_model_ln_kv_w = get_tensor(string_format(TN_MINICPMV_LN, "kv", "weight"));
model.mm_model_ln_kv_b = get_tensor(string_format(TN_MINICPMV_LN, "kv", "bias"));
model.mm_model_ln_post_w = get_tensor(string_format(TN_MINICPMV_LN, "post", "weight"));
model.mm_model_ln_post_b = get_tensor(string_format(TN_MINICPMV_LN, "post", "bias"));
} break;
case PROJECTOR_TYPE_MINICPMV4_6:
{
// ViT merger: window self-attention
model.vit_merger_ln1_w = get_tensor(string_format(TN_VIT_MERGER_LN1, "weight"));
model.vit_merger_ln1_b = get_tensor(string_format(TN_VIT_MERGER_LN1, "bias"));
model.vit_merger_attn_q_w = get_tensor(string_format(TN_VIT_MERGER_ATTN_Q, "weight"));
model.vit_merger_attn_q_b = get_tensor(string_format(TN_VIT_MERGER_ATTN_Q, "bias"), false);
model.vit_merger_attn_k_w = get_tensor(string_format(TN_VIT_MERGER_ATTN_K, "weight"));
model.vit_merger_attn_k_b = get_tensor(string_format(TN_VIT_MERGER_ATTN_K, "bias"), false);
model.vit_merger_attn_v_w = get_tensor(string_format(TN_VIT_MERGER_ATTN_V, "weight"));
model.vit_merger_attn_v_b = get_tensor(string_format(TN_VIT_MERGER_ATTN_V, "bias"), false);
model.vit_merger_attn_o_w = get_tensor(string_format(TN_VIT_MERGER_ATTN_O, "weight"));
model.vit_merger_attn_o_b = get_tensor(string_format(TN_VIT_MERGER_ATTN_O, "bias"), false);
// ViT merger: MLP downsample
model.vit_merger_ds_ln_w = get_tensor(string_format(TN_VIT_MERGER_DS_LN, "weight"));
model.vit_merger_ds_ln_b = get_tensor(string_format(TN_VIT_MERGER_DS_LN, "bias"));
model.vit_merger_ds_up_w = get_tensor(string_format(TN_VIT_MERGER_DS_UP, "weight"));
model.vit_merger_ds_up_b = get_tensor(string_format(TN_VIT_MERGER_DS_UP, "bias"), false);
model.vit_merger_ds_down_w = get_tensor(string_format(TN_VIT_MERGER_DS_DOWN, "weight"));
model.vit_merger_ds_down_b = get_tensor(string_format(TN_VIT_MERGER_DS_DOWN, "bias"), false);
// Final Merger (DownsampleMLP)
model.mm_input_norm_w = get_tensor(TN_MM_INP_NORM);
model.mm_input_norm_b = get_tensor(TN_MM_INP_NORM_B, false);
model.mm_ffn_up_w = get_tensor(string_format(TN_MM_UP, "weight"));
model.mm_ffn_up_b = get_tensor(string_format(TN_MM_UP, "bias"), false);
model.mm_ffn_down_w = get_tensor(string_format(TN_MM_DOWN, "weight"));
model.mm_ffn_down_b = get_tensor(string_format(TN_MM_DOWN, "bias"), false);
} break;
case PROJECTOR_TYPE_GLM_EDGE:
{
model.mm_model_adapter_conv_w = get_tensor(string_format(TN_GLM_ADAPER_CONV, "weight"));
model.mm_model_adapter_conv_b = get_tensor(string_format(TN_GLM_ADAPER_CONV, "bias"));
model.mm_model_mlp_0_w = get_tensor(string_format(TN_GLM_ADAPTER_LINEAR, "weight"));
model.mm_model_ln_q_w = get_tensor(string_format(TN_GLM_ADAPTER_NORM_1, "weight"));
model.mm_model_ln_q_b = get_tensor(string_format(TN_GLM_ADAPTER_NORM_1, "bias"));
model.mm_model_mlp_1_w = get_tensor(string_format(TN_GLM_ADAPTER_D_H_2_4H, "weight"));
model.mm_model_mlp_2_w = get_tensor(string_format(TN_GLM_ADAPTER_GATE, "weight"));
model.mm_model_mlp_3_w = get_tensor(string_format(TN_GLM_ADAPTER_D_4H_2_H, "weight"));
model.mm_boi = get_tensor(string_format(TN_TOK_GLM_BOI));
model.mm_eoi = get_tensor(string_format(TN_TOK_GLM_EOI));
} break;
case PROJECTOR_TYPE_QWEN2VL:
case PROJECTOR_TYPE_QWEN25VL:
case PROJECTOR_TYPE_EXAONE4_5:
{
model.mm_0_w = get_tensor(string_format(TN_LLAVA_PROJ, 0, "weight"));
model.mm_0_b = get_tensor(string_format(TN_LLAVA_PROJ, 0, "bias"));
model.mm_1_w = get_tensor(string_format(TN_LLAVA_PROJ, 2, "weight"));
model.mm_1_b = get_tensor(string_format(TN_LLAVA_PROJ, 2, "bias"));
} break;
case PROJECTOR_TYPE_QWEN3VL:
{
model.mm_0_w = get_tensor(string_format(TN_LLAVA_PROJ, 0, "weight"));
model.mm_0_b = get_tensor(string_format(TN_LLAVA_PROJ, 0, "bias"));
model.mm_1_w = get_tensor(string_format(TN_LLAVA_PROJ, 2, "weight"));
model.mm_1_b = get_tensor(string_format(TN_LLAVA_PROJ, 2, "bias"));
} break;
case PROJECTOR_TYPE_MIMOVL:
{
model.mm_0_w = get_tensor(string_format(TN_LLAVA_PROJ, 0, "weight"));
model.mm_0_b = get_tensor(string_format(TN_LLAVA_PROJ, 0, "bias"), false);
model.mm_1_w = get_tensor(string_format(TN_LLAVA_PROJ, 2, "weight"));
model.mm_1_b = get_tensor(string_format(TN_LLAVA_PROJ, 2, "bias"), false);
} break;
case PROJECTOR_TYPE_STEP3VL:
{
model.mm_0_w = get_tensor(string_format(TN_LLAVA_PROJ, 0, "weight"));
model.mm_0_b = get_tensor(string_format(TN_LLAVA_PROJ, 0, "bias"), false);
model.mm_1_w = get_tensor(string_format(TN_LLAVA_PROJ, 1, "weight"));
model.mm_1_b = get_tensor(string_format(TN_LLAVA_PROJ, 1, "bias"), false);
model.mm_model_proj = get_tensor(string_format(TN_MM_PROJECTOR, "weight"));
} break;
case PROJECTOR_TYPE_YOUTUVL:
{
model.mm_input_norm_w = get_tensor(TN_MM_INP_NORM); // merger.ln_q (RMS norm)
model.mm_0_w = get_tensor(string_format(TN_LLAVA_PROJ, 0, "weight")); // merger.mlp.0
model.mm_0_b = get_tensor(string_format(TN_LLAVA_PROJ, 0, "bias"));
model.mm_1_w = get_tensor(string_format(TN_LLAVA_PROJ, 2, "weight")); // merger.mlp.2
model.mm_1_b = get_tensor(string_format(TN_LLAVA_PROJ, 2, "bias"));
} break;
case PROJECTOR_TYPE_YASA2:
{
// reuse tensors already loaded by the common section
// (TN_PATCH_EMBD and TN_PATCH_BIAS have the same tensor names)
GGML_ASSERT(model.patch_embeddings_0 && "yasa2 requires v.patch_embd.weight");
model.yasa_patch_w = model.patch_embeddings_0;
model.yasa_patch_b = model.patch_bias;
model.yasa_patch_ln_w = get_tensor(TN_YASA_PATCH_LN_W, false);
model.yasa_patch_ln_b = get_tensor(TN_YASA_PATCH_LN_B, false);
model.yasa_backbone_ln_w = get_tensor(TN_YASA_BACKBONE_LN_W, false);
model.yasa_backbone_ln_b = get_tensor(TN_YASA_BACKBONE_LN_B, false);
model.yasa_vision_pos_embed = get_tensor(TN_YASA_POS_EMBD, false);
model.mm_0_w = get_tensor(string_format(TN_LLAVA_PROJ, 0, "weight"));
model.mm_0_b = get_tensor(string_format(TN_LLAVA_PROJ, 0, "bias"), false);
model.mm_2_w = get_tensor(string_format(TN_LLAVA_PROJ, 2, "weight"));
model.mm_2_b = get_tensor(string_format(TN_LLAVA_PROJ, 2, "bias"), false);
model.yasa_stages.clear();
for (int s = 0; ; ++s) {
yasa2_stage stage;
stage.down_ln_w = get_tensor(string_format(TN_YASA_STAGE_DOWN_LN, s, "weight"), false);
stage.down_ln_b = get_tensor(string_format(TN_YASA_STAGE_DOWN_LN, s, "bias"), false);
stage.down_conv_w = get_tensor(string_format(TN_YASA_STAGE_DOWN_CONV, s, "weight"), false);
stage.down_conv_b = get_tensor(string_format(TN_YASA_STAGE_DOWN_CONV, s, "bias"), false);
for (int bi = 0; ; ++bi) {
yasa2_block blk;
blk.dw_w = get_tensor(string_format(TN_YASA_STAGE_BLK, s, bi, "dw", "weight"), false);
if (!blk.dw_w) {
break;
}
blk.dw_b = get_tensor(string_format(TN_YASA_STAGE_BLK, s, bi, "dw", "bias"), false);
blk.ln_w = get_tensor(string_format(TN_YASA_STAGE_BLK, s, bi, "ln", "weight"), false);
blk.ln_b = get_tensor(string_format(TN_YASA_STAGE_BLK, s, bi, "ln", "bias"), false);
blk.pw1_w = get_tensor(string_format(TN_YASA_STAGE_BLK, s, bi, "pw1", "weight"), false);
blk.pw1_b = get_tensor(string_format(TN_YASA_STAGE_BLK, s, bi, "pw1", "bias"), false);
blk.grn_w = get_tensor(string_format(TN_YASA_STAGE_BLK, s, bi, "grn", "weight"), false);
blk.grn_b = get_tensor(string_format(TN_YASA_STAGE_BLK, s, bi, "grn", "bias"), false);
blk.pw2_w = get_tensor(string_format(TN_YASA_STAGE_BLK, s, bi, "pw2", "weight"), false);
blk.pw2_b = get_tensor(string_format(TN_YASA_STAGE_BLK, s, bi, "pw2", "bias"), false);
stage.blocks.push_back(blk);
}
if (!stage.down_conv_w && stage.blocks.empty()) {
break;
}
model.yasa_stages.push_back(std::move(stage));
}
} break;
case PROJECTOR_TYPE_GLM4V:
{
model.mm_fc_w = get_tensor(string_format(TN_MM_PROJECTOR, "weight"));
model.mm_ffn_up_w = get_tensor(string_format(TN_MM_UP, "weight"));
model.mm_ffn_up_b = get_tensor(string_format(TN_MM_UP, "bias"), false);
model.mm_ffn_gate_w = get_tensor(string_format(TN_MM_GATE, "weight"));
model.mm_ffn_gate_b = get_tensor(string_format(TN_MM_GATE, "bias"), false);
model.mm_ffn_down_w = get_tensor(string_format(TN_MM_DOWN, "weight"));
model.mm_ffn_down_b = get_tensor(string_format(TN_MM_DOWN, "bias"), false);
model.mm_post_norm_w = get_tensor(string_format(TN_MM_POST_NORM, "weight"));
model.mm_post_norm_b = get_tensor(string_format(TN_MM_POST_NORM, "bias"), false);
model.mm_patch_merger_w = get_tensor(string_format(TN_MM_PATCH_MERGER, "weight"));
model.mm_patch_merger_b = get_tensor(string_format(TN_MM_PATCH_MERGER, "bias"));
} break;
case PROJECTOR_TYPE_GEMMA3:
{
model.mm_input_proj_w = get_tensor(TN_MM_INP_PROJ);
model.mm_soft_emb_norm_w = get_tensor(TN_MM_SOFT_EMB_N);
} break;
case PROJECTOR_TYPE_GEMMA4V:
{
model.mm_input_proj_w = get_tensor(TN_MM_INP_PROJ);
model.std_bias = get_tensor(TN_STD_BIAS, false);
model.std_scale = get_tensor(TN_STD_SCALE, false);
// load scalar for Gemma4ClippableLinear
for (auto * tensor : tensors_to_load) {
std::string name = tensor->name;
if (string_ends_with(name, ".weight")) {
std::string name_inp_max = name;
std::string name_inp_min = name;
std::string name_out_max = name;
std::string name_out_min = name;
string_replace_all(name_inp_max, ".weight", ".input_max");
string_replace_all(name_inp_min, ".weight", ".input_min");
string_replace_all(name_out_max, ".weight", ".output_max");
string_replace_all(name_out_min, ".weight", ".output_min");
model.clamp_info_map[name] = {
get_scalar(name_inp_max, FLT_MAX),
get_scalar(name_inp_min, -FLT_MAX),
get_scalar(name_out_max, FLT_MAX),
get_scalar(name_out_min, -FLT_MAX)
};
}
}
} break;
case PROJECTOR_TYPE_GEMMA4UV:
{
model.mm_input_proj_w = get_tensor(TN_MM_INP_PROJ);
model.patch_norm_1_w = get_tensor(string_format(TN_PATCH_NORM, 1, "weight"));
model.patch_norm_1_b = get_tensor(string_format(TN_PATCH_NORM, 1, "bias"));
model.patch_norm_2_w = get_tensor(string_format(TN_PATCH_NORM, 2, "weight"));
model.patch_norm_2_b = get_tensor(string_format(TN_PATCH_NORM, 2, "bias"));
model.patch_norm_3_w = get_tensor(string_format(TN_PATCH_NORM, 3, "weight")); // pos_norm
model.patch_norm_3_b = get_tensor(string_format(TN_PATCH_NORM, 3, "bias")); // pos_norm
} break;
case PROJECTOR_TYPE_GEMMA3NV:
{
model.mobilenet_stem_conv_w = get_tensor(TN_MNV5_STEM_CONV, false);
model.mobilenet_stem_conv_b = get_tensor(TN_MNV5_STEM_BIAS, false);
model.mobilenet_stem_norm_w = get_tensor(TN_MNV5_STEM_BN, false);
model.msfa_ffn_expand_w = get_tensor(TN_MNV5_MSFA_FFN_EXP_W, false);
model.msfa_ffn_expand_bn = get_tensor(TN_MNV5_MSFA_FFN_EXP_BN, false); // Consume BN if present but likely folded
model.msfa_ffn_project_w = get_tensor(TN_MNV5_MSFA_FFN_PROJ_W, false);
model.msfa_ffn_project_bn = get_tensor(TN_MNV5_MSFA_FFN_PROJ_BN, false);
model.msfa_concat_norm_w = get_tensor(TN_MNV5_MSFA_NORM, false);
// Dynamically load blocks stage by stage
for (int stage = 0; stage < 4; ++stage) {
int blocks_found_in_stage = 0;
for (int blk_idx = 0; ; ++blk_idx) {
bool found_block = false;
mobilenetv5_block block;
// 1. Check for Edge Residual (S0)
block.s0_conv_exp_w = get_tensor(string_format(TN_MNV5_BLK_S0_EXP_W, stage, blk_idx), false);
if (block.s0_conv_exp_w) {
found_block = true;
block.s0_bn1_w = get_tensor(string_format(TN_MNV5_BLK_S0_BN1_W, stage, blk_idx), false);
block.s0_conv_pwl_w = get_tensor(string_format(TN_MNV5_BLK_S0_PWL_W, stage, blk_idx), false);
block.s0_bn2_w = get_tensor(string_format(TN_MNV5_BLK_S0_BN2_W, stage, blk_idx), false);
}
// 2. Check for UIR (Universal Inverted Residual)
else {
// Check for dw_start OR pw_exp (some UIR blocks skip dw_start)
block.dw_start_w = get_tensor(string_format(TN_MNV5_BLK_DW_START_W, stage, blk_idx), false);
block.pw_exp_w = get_tensor(string_format(TN_MNV5_BLK_PW_EXP_W, stage, blk_idx), false);
if (block.dw_start_w || block.pw_exp_w) {
found_block = true;
if (block.dw_start_w) {
block.dw_start_bn_w = get_tensor(string_format(TN_MNV5_BLK_DW_START_BN, stage, blk_idx), false);
}
if (block.pw_exp_w) {
block.pw_exp_bn_w = get_tensor(string_format(TN_MNV5_BLK_PW_EXP_BN, stage, blk_idx), false);
}
block.dw_mid_w = get_tensor(string_format(TN_MNV5_BLK_DW_MID_W, stage, blk_idx), false);
if (block.dw_mid_w) {
block.dw_mid_bn_w = get_tensor(string_format(TN_MNV5_BLK_DW_MID_BN, stage, blk_idx), false);
}
block.pw_proj_w = get_tensor(string_format(TN_MNV5_BLK_PW_PROJ_W, stage, blk_idx), false);
if (block.pw_proj_w) {
block.pw_proj_bn_w = get_tensor(string_format(TN_MNV5_BLK_PW_PROJ_BN, stage, blk_idx), false);
}
block.layer_scale_w = get_tensor(string_format(TN_MNV5_BLK_LAYER_SCALE, stage, blk_idx), false);
}
}
// 3. Check for Attention (MQA)
// Even if UIR/Edge check failed, this might be a pure attention block
ggml_tensor* attn_q_check = get_tensor(string_format(TN_MNV5_ATTN_Q_W, stage, blk_idx), false);
if (attn_q_check) {
found_block = true;
block.attn_q_w = attn_q_check;
block.attn_k_w = get_tensor(string_format(TN_MNV5_ATTN_K_W, stage, blk_idx), false);
block.attn_v_w = get_tensor(string_format(TN_MNV5_ATTN_V_W, stage, blk_idx), false);
block.attn_o_w = get_tensor(string_format(TN_MNV5_ATTN_O_W, stage, blk_idx), false);
block.attn_k_dw_w = get_tensor(string_format(TN_MNV5_ATTN_K_DW, stage, blk_idx), false);
block.attn_k_norm_w = get_tensor(string_format(TN_MNV5_ATTN_K_NORM, stage, blk_idx), false);
block.attn_v_dw_w = get_tensor(string_format(TN_MNV5_ATTN_V_DW, stage, blk_idx), false);
block.attn_v_norm_w = get_tensor(string_format(TN_MNV5_ATTN_V_NORM, stage, blk_idx), false);
block.attn_norm_w = get_tensor(string_format(TN_MNV5_ATTN_NORM, stage, blk_idx), false);
// Note: Attention blocks also have layer_scale, load it if not already loaded by UIR check
if (!block.layer_scale_w) {
block.layer_scale_w = get_tensor(string_format(TN_MNV5_BLK_LAYER_SCALE, stage, blk_idx), false);
}
}
if (found_block) {
model.mobilenet_blocks.push_back(block);
blocks_found_in_stage++;
} else {
// End of blocks for this stage
break;
}
}
// Track where this stage ends in the flat vector
if (blocks_found_in_stage > 0) {
model.mobilenet_stage_ends.push_back(model.mobilenet_blocks.size() - 1);
LOG_INF("%s: Stage %d ended at global block index %zu\n", __func__, stage, model.mobilenet_blocks.size() - 1);
}
}
model.mm_input_proj_w = get_tensor(TN_MM_INP_PROJ);
model.mm_soft_emb_norm_w = get_tensor(TN_MM_SOFT_EMB_N);
} break;
case PROJECTOR_TYPE_IDEFICS3:
{
model.mm_fc_w = get_tensor(string_format(TN_MM_PROJECTOR, "weight"));
} break;
case PROJECTOR_TYPE_LFM2:
{
model.mm_input_norm_w = get_tensor(TN_MM_INP_NORM, false);
model.mm_input_norm_b = get_tensor(TN_MM_INP_NORM_B, false);
model.mm_1_w = get_tensor(string_format(TN_LLAVA_PROJ, 1, "weight"));
model.mm_1_b = get_tensor(string_format(TN_LLAVA_PROJ, 1, "bias"));
model.mm_2_w = get_tensor(string_format(TN_LLAVA_PROJ, 2, "weight"));
model.mm_2_b = get_tensor(string_format(TN_LLAVA_PROJ, 2, "bias"));
} break;
case PROJECTOR_TYPE_KIMIVL:
case PROJECTOR_TYPE_PADDLEOCR:
case PROJECTOR_TYPE_KIMIK25:
{
model.mm_input_norm_w = get_tensor(TN_MM_INP_NORM);
model.mm_input_norm_b = get_tensor(TN_MM_INP_NORM_B);
model.mm_1_w = get_tensor(string_format(TN_LLAVA_PROJ, 1, "weight"));
model.mm_1_b = get_tensor(string_format(TN_LLAVA_PROJ, 1, "bias"));
model.mm_2_w = get_tensor(string_format(TN_LLAVA_PROJ, 2, "weight"));
model.mm_2_b = get_tensor(string_format(TN_LLAVA_PROJ, 2, "bias"));
} break;
case PROJECTOR_TYPE_PIXTRAL:
{
model.mm_1_w = get_tensor(string_format(TN_LLAVA_PROJ, 1, "weight"));
model.mm_1_b = get_tensor(string_format(TN_LLAVA_PROJ, 1, "bias"), false);
model.mm_2_w = get_tensor(string_format(TN_LLAVA_PROJ, 2, "weight"));
model.mm_2_b = get_tensor(string_format(TN_LLAVA_PROJ, 2, "bias"), false);
// [IMG_BREAK] token embedding
model.token_embd_img_break = get_tensor(TN_TOK_IMG_BREAK);
// for mistral small 3.1
model.mm_input_norm_w = get_tensor(TN_MM_INP_NORM, false);
model.mm_patch_merger_w = get_tensor(string_format(TN_MM_PATCH_MERGER, "weight"), false);
} break;
case PROJECTOR_TYPE_LIGHTONOCR:
{
model.mm_1_w = get_tensor(string_format(TN_LLAVA_PROJ, 1, "weight"));
model.mm_1_b = get_tensor(string_format(TN_LLAVA_PROJ, 1, "bias"), false);
model.mm_2_w = get_tensor(string_format(TN_LLAVA_PROJ, 2, "weight"));
model.mm_2_b = get_tensor(string_format(TN_LLAVA_PROJ, 2, "bias"), false);
model.mm_input_norm_w = get_tensor(TN_MM_INP_NORM, false);
model.mm_patch_merger_w = get_tensor(string_format(TN_MM_PATCH_MERGER, "weight"), false);
} break;
case PROJECTOR_TYPE_DOTS_OCR:
{
model.mm_0_w = get_tensor(string_format(TN_LLAVA_PROJ, 0, "weight"));
model.mm_0_b = get_tensor(string_format(TN_LLAVA_PROJ, 0, "bias"));
model.mm_2_w = get_tensor(string_format(TN_LLAVA_PROJ, 2, "weight"));
model.mm_2_b = get_tensor(string_format(TN_LLAVA_PROJ, 2, "bias"));
model.mm_input_norm_w = get_tensor(TN_MM_INP_NORM);
model.mm_input_norm_b = get_tensor(TN_MM_INP_NORM_B);
// post_trunk_norm: applied after all ViT blocks, before the merger
model.post_ln_w = get_tensor(string_format(TN_MM_POST_NORM, "weight"));
} break;
case PROJECTOR_TYPE_ULTRAVOX:
{
model.conv1d_1_w = get_tensor(string_format(TN_CONV1D, 1, "weight"));
model.conv1d_1_b = get_tensor(string_format(TN_CONV1D, 1, "bias"));
model.conv1d_2_w = get_tensor(string_format(TN_CONV1D, 2, "weight"));
model.conv1d_2_b = get_tensor(string_format(TN_CONV1D, 2, "bias"));
model.mm_1_w = get_tensor(string_format(TN_MM_AUDIO_MLP, 1, "weight"));
model.mm_2_w = get_tensor(string_format(TN_MM_AUDIO_MLP, 2, "weight"));
model.mm_norm_pre_w = get_tensor(string_format(TN_MM_NORM_PRE, "weight"));
model.mm_norm_mid_w = get_tensor(string_format(TN_MM_NORM_MID, "weight"));
} break;
case PROJECTOR_TYPE_MERALION:
{
// Whisper encoder conv layers
model.conv1d_1_w = get_tensor(string_format(TN_CONV1D, 1, "weight"));
model.conv1d_1_b = get_tensor(string_format(TN_CONV1D, 1, "bias"));
model.conv1d_2_w = get_tensor(string_format(TN_CONV1D, 2, "weight"));
model.conv1d_2_b = get_tensor(string_format(TN_CONV1D, 2, "bias"));
// MERaLiON adaptor: 4 linear layers + ln_pre
// linear_0 = frame compression (19200->6400) + SiLU
// linear_1 = gate_proj (6400->6400) for GLU
// linear_2 = pool_proj (6400->6400) for GLU
// linear_3 = out_proj (6400->3584)
model.mm_0_w = get_tensor(string_format(TN_MM_AUDIO_MLP, 0, "weight"));
model.mm_0_b = get_tensor(string_format(TN_MM_AUDIO_MLP, 0, "bias"));
model.mm_1_w = get_tensor(string_format(TN_MM_AUDIO_MLP, 1, "weight"));
model.mm_1_b = get_tensor(string_format(TN_MM_AUDIO_MLP, 1, "bias"));
model.mm_2_w = get_tensor(string_format(TN_MM_AUDIO_MLP, 2, "weight"));
model.mm_2_b = get_tensor(string_format(TN_MM_AUDIO_MLP, 2, "bias"));
model.mm_3_w = get_tensor(string_format(TN_MM_AUDIO_MLP, 3, "weight"));
model.mm_3_b = get_tensor(string_format(TN_MM_AUDIO_MLP, 3, "bias"));
// ln_speech (LayerNorm before adaptor)
model.mm_norm_pre_w = get_tensor(string_format(TN_MM_NORM_PRE, "weight"));
model.mm_norm_pre_b = get_tensor(string_format(TN_MM_NORM_PRE, "bias"));
} break;
case PROJECTOR_TYPE_QWEN2A:
{
model.conv1d_1_w = get_tensor(string_format(TN_CONV1D, 1, "weight"));
model.conv1d_1_b = get_tensor(string_format(TN_CONV1D, 1, "bias"));
model.conv1d_2_w = get_tensor(string_format(TN_CONV1D, 2, "weight"));
model.conv1d_2_b = get_tensor(string_format(TN_CONV1D, 2, "bias"));
model.mm_fc_w = get_tensor(string_format(TN_MM_AUDIO_FC, "weight"));
model.mm_fc_b = get_tensor(string_format(TN_MM_AUDIO_FC, "bias"));
} break;
case PROJECTOR_TYPE_QWEN3A:
{
model.conv2d_1_w = get_tensor(string_format(TN_CONV2D, 1, "weight"));
model.conv2d_1_b = get_tensor(string_format(TN_CONV2D, 1, "bias"));
model.conv2d_2_w = get_tensor(string_format(TN_CONV2D, 2, "weight"));
model.conv2d_2_b = get_tensor(string_format(TN_CONV2D, 2, "bias"));
model.conv2d_3_w = get_tensor(string_format(TN_CONV2D, 3, "weight"));
model.conv2d_3_b = get_tensor(string_format(TN_CONV2D, 3, "bias"));
model.conv_out_w = get_tensor(string_format(TN_CONV_OUT, "weight")); // no bias
model.mm_1_w = get_tensor(string_format(TN_MM_AUDIO_MLP, 1, "weight"));
model.mm_1_b = get_tensor(string_format(TN_MM_AUDIO_MLP, 1, "bias"));
model.mm_2_w = get_tensor(string_format(TN_MM_AUDIO_MLP, 2, "weight"));
model.mm_2_b = get_tensor(string_format(TN_MM_AUDIO_MLP, 2, "bias"));
} break;
case PROJECTOR_TYPE_VOXTRAL:
{
model.conv1d_1_w = get_tensor(string_format(TN_CONV1D, 1, "weight"));
model.conv1d_1_b = get_tensor(string_format(TN_CONV1D, 1, "bias"));
model.conv1d_2_w = get_tensor(string_format(TN_CONV1D, 2, "weight"));
model.conv1d_2_b = get_tensor(string_format(TN_CONV1D, 2, "bias"));
model.mm_1_w = get_tensor(string_format(TN_MM_AUDIO_MLP, 1, "weight"));
model.mm_2_w = get_tensor(string_format(TN_MM_AUDIO_MLP, 2, "weight"));
} break;
case PROJECTOR_TYPE_MUSIC_FLAMINGO:
{
model.conv1d_1_w = get_tensor(string_format(TN_CONV1D, 1, "weight"));
model.conv1d_1_b = get_tensor(string_format(TN_CONV1D, 1, "bias"));
model.conv1d_2_w = get_tensor(string_format(TN_CONV1D, 2, "weight"));
model.conv1d_2_b = get_tensor(string_format(TN_CONV1D, 2, "bias"));
model.mm_1_w = get_tensor(string_format(TN_MM_AUDIO_MLP, 1, "weight"));
model.mm_1_b = get_tensor(string_format(TN_MM_AUDIO_MLP, 1, "bias"));
model.mm_2_w = get_tensor(string_format(TN_MM_AUDIO_MLP, 2, "weight"));
model.mm_2_b = get_tensor(string_format(TN_MM_AUDIO_MLP, 2, "bias"));
} break;
case PROJECTOR_TYPE_INTERNVL:
{
model.mm_0_w = get_tensor(string_format(TN_MVLM_PROJ_MLP, 0, "weight"));
model.mm_0_b = get_tensor(string_format(TN_MVLM_PROJ_MLP, 0, "bias"));
model.mm_1_w = get_tensor(string_format(TN_MVLM_PROJ_MLP, 1, "weight"));
model.mm_1_b = get_tensor(string_format(TN_MVLM_PROJ_MLP, 1, "bias"));
model.mm_3_w = get_tensor(string_format(TN_MVLM_PROJ_MLP, 3, "weight"));
model.mm_3_b = get_tensor(string_format(TN_MVLM_PROJ_MLP, 3, "bias"));
} break;
case PROJECTOR_TYPE_NEMOTRON_V2_VL:
{
model.mm_0_w = get_tensor(string_format(TN_MVLM_PROJ_MLP, 0, "weight"));
model.mm_1_w = get_tensor(string_format(TN_MVLM_PROJ_MLP, 1, "weight"));
model.mm_3_w = get_tensor(string_format(TN_MVLM_PROJ_MLP, 3, "weight"));
} break;
case PROJECTOR_TYPE_GLMA:
{
model.conv1d_1_w = get_tensor(string_format(TN_CONV1D, 1, "weight"));
model.conv1d_1_b = get_tensor(string_format(TN_CONV1D, 1, "bias"));
model.conv1d_2_w = get_tensor(string_format(TN_CONV1D, 2, "weight"));
model.conv1d_2_b = get_tensor(string_format(TN_CONV1D, 2, "bias"));
model.mm_1_w = get_tensor(string_format(TN_MM_AUDIO_MLP, 1, "weight"));
model.mm_1_b = get_tensor(string_format(TN_MM_AUDIO_MLP, 1, "bias"));
model.mm_2_w = get_tensor(string_format(TN_MM_AUDIO_MLP, 2, "weight"));
model.mm_2_b = get_tensor(string_format(TN_MM_AUDIO_MLP, 2, "bias"));
model.mm_norm_pre_w = get_tensor(string_format(TN_MM_NORM_PRE, "weight"));
model.mm_norm_pre_b = get_tensor(string_format(TN_MM_NORM_PRE, "bias"));
model.mm_boi = get_tensor(string_format(TN_TOK_BOI));
model.mm_eoi = get_tensor(string_format(TN_TOK_EOI));
} break;
case PROJECTOR_TYPE_LLAMA4:
{
model.mm_model_proj = get_tensor(string_format(TN_MM_PROJECTOR, "weight"));
model.mm_model_mlp_1_w = get_tensor(string_format(TN_MVLM_PROJ_MLP, 1, "weight"));
model.mm_model_mlp_2_w = get_tensor(string_format(TN_MVLM_PROJ_MLP, 2, "weight"));
} break;
case PROJECTOR_TYPE_COGVLM:
{
model.mm_model_proj = get_tensor(string_format(TN_MM_PROJECTOR, "weight"));
model.mm_post_fc_norm_w = get_tensor(string_format(TN_MM_POST_FC_NORM, "weight"));
model.mm_post_fc_norm_b = get_tensor(string_format(TN_MM_POST_FC_NORM, "bias"));
model.mm_h_to_4h_w = get_tensor(string_format(TN_MM_H_TO_4H, "weight"));
model.mm_gate_w = get_tensor(string_format(TN_MM_GATE, "weight"));
model.mm_4h_to_h_w = get_tensor(string_format(TN_MM_4H_TO_H, "weight"));
model.mm_boi = get_tensor(TN_TOK_BOI);
model.mm_eoi = get_tensor(TN_TOK_EOI);
} break;
case PROJECTOR_TYPE_HUNYUANVL:
{
// proj.0 -> mm.0 (conv1), proj.2 -> mm.2 (conv2), mlp -> mm.model.fc (linear)
model.mm_0_w = get_tensor(string_format(TN_LLAVA_PROJ, 0, "weight"));
model.mm_0_b = get_tensor(string_format(TN_LLAVA_PROJ, 0, "bias"));
model.mm_1_w = get_tensor(string_format(TN_LLAVA_PROJ, 2, "weight"));
model.mm_1_b = get_tensor(string_format(TN_LLAVA_PROJ, 2, "bias"));
model.mm_model_proj = get_tensor(string_format(TN_MM_PROJECTOR, "weight"));
model.mm_model_proj_b = get_tensor(string_format(TN_MM_PROJECTOR, "bias"));
model.mm_pre_norm_w = get_tensor(string_format(TN_MM_PRE_NORM, "weight"));
model.mm_post_norm_w = get_tensor(string_format(TN_MM_POST_NORM, "weight"));
model.mm_img_begin = get_tensor(TN_TOK_IMG_BEGIN);
model.mm_img_end = get_tensor(TN_TOK_IMG_END);
model.image_newline = get_tensor(TN_IMAGE_NEWLINE);
model.view_seperator = get_tensor(TN_IMAGE_SEPERATOR, false);
} break;
case PROJECTOR_TYPE_JANUS_PRO:
{
model.mm_0_w = get_tensor(string_format(TN_LLAVA_PROJ, 0, "weight"));
model.mm_0_b = get_tensor(string_format(TN_LLAVA_PROJ, 0, "bias"));
model.mm_1_w = get_tensor(string_format(TN_LLAVA_PROJ, 1, "weight"));
model.mm_1_b = get_tensor(string_format(TN_LLAVA_PROJ, 1, "bias"));
} break;
case PROJECTOR_TYPE_PHI4:
{
model.mm_0_w = get_tensor(string_format(TN_LLAVA_PROJ, 0, "weight"));
model.mm_0_b = get_tensor(string_format(TN_LLAVA_PROJ, 0, "bias"));
model.mm_2_w = get_tensor(string_format(TN_LLAVA_PROJ, 2, "weight"));
model.mm_2_b = get_tensor(string_format(TN_LLAVA_PROJ, 2, "bias"));
} break;
case PROJECTOR_TYPE_DEEPSEEKOCR:
case PROJECTOR_TYPE_DEEPSEEKOCR2:
{
model.pos_embed = get_tensor(string_format(TN_SAM_POS_EMBD, "weight"));
model.patch_embed_proj_w = get_tensor(string_format(TN_SAM_PATCH_EMBD, "weight"));
model.patch_embed_proj_b = get_tensor(string_format(TN_SAM_PATCH_EMBD, "bias"));
model.sam_layers.resize(model.n_sam_layers);
for (int il = 0; il < model.n_sam_layers; ++il) {
auto & layer = model.sam_layers[il];
layer.qkv_w = get_tensor(string_format(TN_SAM_ATTN_QKV, il, "weight"));
layer.qkv_b = get_tensor(string_format(TN_SAM_ATTN_QKV, il, "bias"));
layer.o_w = get_tensor(string_format(TN_SAM_ATTN_OUT, il, "weight"));
layer.o_b = get_tensor(string_format(TN_SAM_ATTN_OUT, il, "bias"));
layer.ln_1_w = get_tensor(string_format(TN_SAM_PRE_NORM, il, "weight"));
layer.ln_1_b = get_tensor(string_format(TN_SAM_PRE_NORM, il, "bias"));
layer.ln_2_w = get_tensor(string_format(TN_SAM_POST_NORM, il, "weight"));
layer.ln_2_b = get_tensor(string_format(TN_SAM_POST_NORM, il, "bias"));
layer.rel_pos_h = get_tensor(string_format(TN_SAM_ATTN_POS_H, il, "weight"));
layer.rel_pos_w = get_tensor(string_format(TN_SAM_ATTN_POS_W, il, "weight"));
layer.ff_up_w = get_tensor(string_format(TN_SAM_FFN_UP, il, "weight"));
layer.ff_up_b = get_tensor(string_format(TN_SAM_FFN_UP, il, "bias"));
layer.ff_down_w = get_tensor(string_format(TN_SAM_FFN_DOWN, il, "weight"));
layer.ff_down_b = get_tensor(string_format(TN_SAM_FFN_DOWN, il, "bias"));
}
model.neck_0_w = get_tensor(string_format(TN_SAM_NECK, 0, "weight"));
model.neck_1_b = get_tensor(string_format(TN_SAM_NECK, 1, "bias"));
model.neck_1_w = get_tensor(string_format(TN_SAM_NECK, 1, "weight"));
model.neck_2_w = get_tensor(string_format(TN_SAM_NECK, 2, "weight"));
model.neck_3_b = get_tensor(string_format(TN_SAM_NECK, 3, "bias"));
model.neck_3_w = get_tensor(string_format(TN_SAM_NECK, 3, "weight"));
model.net_2 = get_tensor(string_format(TN_SAM_NET, 2, "weight"));
model.net_3 = get_tensor(string_format(TN_SAM_NET, 3, "weight"));
model.image_newline = get_tensor(TN_IMAGE_NEWLINE, false);
model.view_seperator = get_tensor(TN_IMAGE_SEPERATOR);
model.mm_fc_w = get_tensor(string_format(TN_MM_PROJECTOR, "weight"));
model.mm_fc_b = get_tensor(string_format(TN_MM_PROJECTOR, "bias"));
model.resample_query_768 = get_tensor(string_format(TN_RESMPL_QUERY, 768, "weight"), false);
model.resample_query_1024 = get_tensor(string_format(TN_RESMPL_QUERY, 1024, "weight"), false);
} break;
case PROJECTOR_TYPE_GEMMA4A:
{
for (int i = 0; i < 2; i++) {
model.sscp_conv_w[i] = get_tensor(string_format(TN_A_CONV1D, i, "weight"));
model.sscp_conv_b[i] = get_tensor(string_format(TN_A_CONV1D, i, "bias"), false);
model.sscp_norm_w[i] = get_tensor(string_format(TN_A_CONV1D_NORM, i, "weight"), false);
}
model.sscp_inp_proj_w = get_tensor(string_format(TN_A_INP_PROJ, "weight"));
model.sscp_inp_proj_b = get_tensor(string_format(TN_A_INP_PROJ, "bias"), false);
model.audio_out_proj_w = get_tensor(string_format(TN_A_OUT_PROJ, "weight"), false);
model.audio_out_proj_b = get_tensor(string_format(TN_A_OUT_PROJ, "bias"), false);
// audio multimodal embedder (mm.a.* namespace, not mm.*)
model.mm_soft_emb_norm_w = get_tensor(string_format(TN_A_MM_SOFT_EMB_N, "weight"), false);
model.mm_input_proj_w = get_tensor(string_format(TN_A_MM_INP_PROJ, "weight"), false);
// Per-layer tensors NOT loaded by the generic loop above
for (int il = 0; il < hparams.n_layer; ++il) {
auto & layer = model.layers[il];
// Gemma4 audio conformer-specific tensors
layer.ff_norm_w = get_tensor(string_format(TN_FFN_NORM, prefix, il, "weight"));
layer.attn_pre_norm_w = get_tensor(string_format(TN_A_ATTN_PRE_NORM, prefix, il, "weight"), false);
layer.per_dim_scale_w = get_tensor(string_format(TN_A_PER_DIM_SCALE, prefix, il, "weight"), false);
layer.per_dim_k_scale_w = get_tensor(string_format(TN_A_PER_DIM_K_SCALE, prefix, il, "weight"), false);
layer.attn_k_rel_w = get_tensor(string_format(TN_A_ATTN_K_REL, prefix, il, "weight"), false);
// Convolution module
// Note: conv_norm / norm_conv are swapped in GGUF due to
// upstream tensor_mapping.py, so we load them in reverse order
layer.norm_conv_w = get_tensor(string_format(TN_CONV_NORM, prefix, il, "weight"), false);
layer.norm_conv_b = get_tensor(string_format(TN_CONV_NORM, prefix, il, "bias"), false);
layer.conv_pw1_w = get_tensor(string_format(TN_CONV_PW1, prefix, il, "weight"));
layer.conv_pw1_b = get_tensor(string_format(TN_CONV_PW1, prefix, il, "bias"), false);
layer.conv_dw_w = get_tensor(string_format(TN_CONV_DW, prefix, il, "weight"));
layer.conv_dw_b = get_tensor(string_format(TN_CONV_DW, prefix, il, "bias"), false);
layer.conv_norm_w = get_tensor(string_format(TN_NORM_CONV, prefix, il, "weight"), false);
layer.conv_norm_b = get_tensor(string_format(TN_NORM_CONV, prefix, il, "bias"), false);
layer.conv_pw2_w = get_tensor(string_format(TN_CONV_PW2, prefix, il, "weight"));
layer.conv_pw2_b = get_tensor(string_format(TN_CONV_PW2, prefix, il, "bias"), false);
// FFN2 (second half-step)
layer.ff_norm_1_w = get_tensor(string_format(TN_FFN_NORM_1, prefix, il, "weight"));
layer.ff_up_1_w = get_tensor(string_format(TN_FFN_UP_1, prefix, il, "weight"));
layer.ff_up_1_b = get_tensor(string_format(TN_FFN_UP_1, prefix, il, "bias"), false);
layer.ff_down_1_w = get_tensor(string_format(TN_FFN_DOWN_1, prefix, il, "weight"));
layer.ff_down_1_b = get_tensor(string_format(TN_FFN_DOWN_1, prefix, il, "bias"), false);
layer.ff_post_norm_1_w = get_tensor(string_format(TN_A_FFN_POST_NORM_1, prefix, il, "weight"), false);
}
// Load clamp info for ClippableLinear AFTER all tensors are loaded
for (auto * tensor : tensors_to_load) {
std::string name = tensor->name;
if (string_ends_with(name, ".weight")) {
std::string name_inp_max = name;
std::string name_inp_min = name;
std::string name_out_max = name;
std::string name_out_min = name;
string_replace_all(name_inp_max, ".weight", ".input_max");
string_replace_all(name_inp_min, ".weight", ".input_min");
string_replace_all(name_out_max, ".weight", ".output_max");
string_replace_all(name_out_min, ".weight", ".output_min");
model.clamp_info_map[name] = {
get_scalar(name_inp_max, FLT_MAX),
get_scalar(name_inp_min, -FLT_MAX),
get_scalar(name_out_max, FLT_MAX),
get_scalar(name_out_min, -FLT_MAX)
};
}
}
} break;
case PROJECTOR_TYPE_GEMMA4UA:
{
model.mm_input_proj_w = get_tensor(string_format(TN_A_MM_INP_PROJ, "weight"));
} break;
case PROJECTOR_TYPE_LFM2A:
{
for (int i : {0, 2, 3, 5, 6}) {
model.pre_encode_conv_X_w[i] = get_tensor(string_format(TN_CONV1D, i, "weight"));
model.pre_encode_conv_X_b[i] = get_tensor(string_format(TN_CONV1D, i, "bias"));
}
model.pre_encode_out_w = get_tensor(string_format(TN_PRE_ENCODE_OUT, "weight"));
model.pre_encode_out_b = get_tensor(string_format(TN_PRE_ENCODE_OUT, "bias"));
model.mm_0_w = get_tensor(string_format(TN_MM_AUDIO_MLP, 0, "weight"));
model.mm_0_b = get_tensor(string_format(TN_MM_AUDIO_MLP, 0, "bias"));
model.mm_1_w = get_tensor(string_format(TN_MM_AUDIO_MLP, 1, "weight"));
model.mm_1_b = get_tensor(string_format(TN_MM_AUDIO_MLP, 1, "bias"));
model.mm_3_w = get_tensor(string_format(TN_MM_AUDIO_MLP, 3, "weight"));
model.mm_3_b = get_tensor(string_format(TN_MM_AUDIO_MLP, 3, "bias"));
for (int il = 0; il < hparams.n_layer; ++il) {
auto & layer = model.layers[il];
layer.ff_norm_w = get_tensor(string_format(TN_FFN_NORM, prefix, il, "weight"));
layer.ff_norm_b = get_tensor(string_format(TN_FFN_NORM, prefix, il, "bias"));
layer.ff_norm_1_w = get_tensor(string_format(TN_FFN_NORM_1, prefix, il, "weight"));
layer.ff_norm_1_b = get_tensor(string_format(TN_FFN_NORM_1, prefix, il, "bias"));
layer.ff_up_1_w = get_tensor(string_format(TN_FFN_UP_1, prefix, il, "weight"));
layer.ff_up_1_b = get_tensor(string_format(TN_FFN_UP_1, prefix, il, "bias"));
layer.ff_down_1_w = get_tensor(string_format(TN_FFN_DOWN_1, prefix, il, "weight"));
layer.ff_down_1_b = get_tensor(string_format(TN_FFN_DOWN_1, prefix, il, "bias"));
layer.pos_bias_u = get_tensor(string_format(TN_POS_BIAS_U, prefix, il));
layer.pos_bias_v = get_tensor(string_format(TN_POS_BIAS_V, prefix, il));
layer.norm_conv_w = get_tensor(string_format(TN_NORM_CONV, prefix, il, "weight"));
layer.norm_conv_b = get_tensor(string_format(TN_NORM_CONV, prefix, il, "bias"));
layer.linear_pos_w = get_tensor(string_format(TN_LINEAR_POS, prefix, il, "weight"));
layer.conv_norm_w = get_tensor(string_format(TN_CONV_NORM, prefix, il, "weight"));
layer.conv_norm_b = get_tensor(string_format(TN_CONV_NORM, prefix, il, "bias"));
layer.conv_dw_w = get_tensor(string_format(TN_CONV_DW, prefix, il, "weight"));
layer.conv_dw_b = get_tensor(string_format(TN_CONV_DW, prefix, il, "bias"));
layer.conv_pw1_w = get_tensor(string_format(TN_CONV_PW1, prefix, il, "weight"));
layer.conv_pw1_b = get_tensor(string_format(TN_CONV_PW1, prefix, il, "bias"));
layer.conv_pw2_w = get_tensor(string_format(TN_CONV_PW2, prefix, il, "weight"));
layer.conv_pw2_b = get_tensor(string_format(TN_CONV_PW2, prefix, il, "bias"));
}
} break;
case PROJECTOR_TYPE_GRANITE_SPEECH:
{
model.inp_proj_w = get_tensor(string_format(TN_INP_PROJ, "weight"));
model.inp_proj_b = get_tensor(string_format(TN_INP_PROJ, "bias"));
model.ctc_out_w = get_tensor(string_format(TN_CTC_OUT, "weight"));
model.ctc_out_b = get_tensor(string_format(TN_CTC_OUT, "bias"));
model.ctc_out_mid_w = get_tensor(string_format(TN_CTC_OUT_MID, "weight"));
model.ctc_out_mid_b = get_tensor(string_format(TN_CTC_OUT_MID, "bias"));
// per-layer tensors not loaded by the generic loop above
for (int il = 0; il < hparams.n_layer; ++il) {
auto & layer = model.layers[il];
layer.attn_rel_pos_emb = get_tensor(string_format(TN_ATTN_REL_POS_EMB, prefix, il));
layer.ff_norm_w = get_tensor(string_format(TN_FFN_NORM, prefix, il, "weight"));
layer.ff_norm_b = get_tensor(string_format(TN_FFN_NORM, prefix, il, "bias"));
layer.ff_norm_1_w = get_tensor(string_format(TN_FFN_NORM_1, prefix, il, "weight"));
layer.ff_norm_1_b = get_tensor(string_format(TN_FFN_NORM_1, prefix, il, "bias"));
layer.ff_up_1_w = get_tensor(string_format(TN_FFN_UP_1, prefix, il, "weight"));
layer.ff_up_1_b = get_tensor(string_format(TN_FFN_UP_1, prefix, il, "bias"));
layer.ff_down_1_w = get_tensor(string_format(TN_FFN_DOWN_1, prefix, il, "weight"));
layer.ff_down_1_b = get_tensor(string_format(TN_FFN_DOWN_1, prefix, il, "bias"));
layer.norm_conv_w = get_tensor(string_format(TN_NORM_CONV, prefix, il, "weight"));
layer.norm_conv_b = get_tensor(string_format(TN_NORM_CONV, prefix, il, "bias"));
layer.conv_norm_w = get_tensor(string_format(TN_CONV_NORM, prefix, il, "weight"));
layer.conv_norm_b = get_tensor(string_format(TN_CONV_NORM, prefix, il, "bias"));
layer.conv_dw_w = get_tensor(string_format(TN_CONV_DW, prefix, il, "weight"));
layer.conv_pw1_w = get_tensor(string_format(TN_CONV_PW1, prefix, il, "weight"));
layer.conv_pw1_b = get_tensor(string_format(TN_CONV_PW1, prefix, il, "bias"));
layer.conv_pw2_w = get_tensor(string_format(TN_CONV_PW2, prefix, il, "weight"));
layer.conv_pw2_b = get_tensor(string_format(TN_CONV_PW2, prefix, il, "bias"));
}
model.qf_proj_blocks.resize(1);
auto & qf = model.qf_proj_blocks[0];
qf.qf_proj_query = get_tensor(string_format(TN_QF_PROJ_QUERY, prefix));
qf.qf_proj_norm_w = get_tensor(string_format(TN_QF_PROJ_NORM, prefix, "weight"));
qf.qf_proj_norm_b = get_tensor(string_format(TN_QF_PROJ_NORM, prefix, "bias"));
qf.qf_proj_linear_w = get_tensor(string_format(TN_QF_PROJ_LINEAR, prefix, "weight"));
qf.qf_proj_linear_b = get_tensor(string_format(TN_QF_PROJ_LINEAR, prefix, "bias"));
const int n_proj_layers = 2;
qf.qf_proj_layers.resize(n_proj_layers);
for (int il = 0; il < n_proj_layers; ++il) {
auto & pl = qf.qf_proj_layers[il];
pl.q_w = get_tensor(string_format(TN_QF_SELF_ATTN_Q, prefix, il, "weight"));
pl.q_b = get_tensor(string_format(TN_QF_SELF_ATTN_Q, prefix, il, "bias"));
pl.k_w = get_tensor(string_format(TN_QF_SELF_ATTN_K, prefix, il, "weight"));
pl.k_b = get_tensor(string_format(TN_QF_SELF_ATTN_K, prefix, il, "bias"));
pl.v_w = get_tensor(string_format(TN_QF_SELF_ATTN_V, prefix, il, "weight"));
pl.v_b = get_tensor(string_format(TN_QF_SELF_ATTN_V, prefix, il, "bias"));
pl.o_w = get_tensor(string_format(TN_QF_SELF_ATTN_O, prefix, il, "weight"));
pl.o_b = get_tensor(string_format(TN_QF_SELF_ATTN_O, prefix, il, "bias"));
pl.ln_1_w = get_tensor(string_format(TN_QF_SELF_ATTN_N, prefix, il, "weight"));
pl.ln_1_b = get_tensor(string_format(TN_QF_SELF_ATTN_N, prefix, il, "bias"));
pl.cross_attn_q_w = get_tensor(string_format(TN_QF_CROSS_ATTN_Q, prefix, il, "weight"));
pl.cross_attn_q_b = get_tensor(string_format(TN_QF_CROSS_ATTN_Q, prefix, il, "bias"));
pl.cross_attn_k_w = get_tensor(string_format(TN_QF_CROSS_ATTN_K, prefix, il, "weight"));
pl.cross_attn_k_b = get_tensor(string_format(TN_QF_CROSS_ATTN_K, prefix, il, "bias"));
pl.cross_attn_v_w = get_tensor(string_format(TN_QF_CROSS_ATTN_V, prefix, il, "weight"));
pl.cross_attn_v_b = get_tensor(string_format(TN_QF_CROSS_ATTN_V, prefix, il, "bias"));
pl.cross_attn_o_w = get_tensor(string_format(TN_QF_CROSS_ATTN_O, prefix, il, "weight"));
pl.cross_attn_o_b = get_tensor(string_format(TN_QF_CROSS_ATTN_O, prefix, il, "bias"));
pl.cross_attn_norm_w = get_tensor(string_format(TN_QF_CROSS_ATTN_N, prefix, il, "weight"));
pl.cross_attn_norm_b = get_tensor(string_format(TN_QF_CROSS_ATTN_N, prefix, il, "bias"));
pl.ff_up_w = get_tensor(string_format(TN_QF_FFN_UP, prefix, il, "weight"));
pl.ff_up_b = get_tensor(string_format(TN_QF_FFN_UP, prefix, il, "bias"));
pl.ff_down_w = get_tensor(string_format(TN_QF_FFN_DOWN, prefix, il, "weight"));
pl.ff_down_b = get_tensor(string_format(TN_QF_FFN_DOWN, prefix, il, "bias"));
pl.ln_2_w = get_tensor(string_format(TN_QF_FFN_NORM, prefix, il, "weight"));
pl.ln_2_b = get_tensor(string_format(TN_QF_FFN_NORM, prefix, il, "bias"));
}
} break;
case PROJECTOR_TYPE_GRANITE4_VISION:
{
// image_newline lives at the top-level.
model.image_newline = get_tensor(TN_IMAGE_NEWLINE);
// Load separate layerwise and spatial projector tensors
const auto projector_count = hparams.vision_feature_layer.size();
model.qf_proj_blocks.resize(projector_count);
for (size_t bid = 0; bid < projector_count; ++bid) {
auto & b = model.qf_proj_blocks[bid];
// non-layerwise tensors
b.qf_proj_img_pos = get_tensor(string_format(TN_MULTI_PROJ_IMG_POS, bid));
b.qf_proj_query = get_tensor(string_format(TN_MULTI_PROJ_QUERY, prefix, bid));
b.qf_proj_linear_w = get_tensor(string_format(TN_MULTI_PROJ_LINEAR, prefix, bid, "weight"));
b.qf_proj_linear_b = get_tensor(string_format(TN_MULTI_PROJ_LINEAR, prefix, bid, "bias"));
b.qf_proj_norm_w = get_tensor(string_format(TN_MULTI_PROJ_NORM, prefix, bid, "weight"));
b.qf_proj_norm_b = get_tensor(string_format(TN_MULTI_PROJ_NORM, prefix, bid, "bias"));
b.qf_proj_post_norm_w = get_tensor(string_format(TN_MULTI_PROJ_POST_NORM, prefix, bid, "weight"));
b.qf_proj_post_norm_b = get_tensor(string_format(TN_MULTI_PROJ_POST_NORM, prefix, bid, "bias"));
// laywerwise tensors
// NOTE: If any model uses multi-layer qformers, this will need to change
b.qf_proj_layers.resize(1);
auto & pl = b.qf_proj_layers[0];
pl.q_w = get_tensor(string_format(TN_QF_SELF_ATTN_Q, prefix, bid, "weight"));
pl.q_b = get_tensor(string_format(TN_QF_SELF_ATTN_Q, prefix, bid, "bias"));
pl.k_w = get_tensor(string_format(TN_QF_SELF_ATTN_K, prefix, bid, "weight"));
pl.k_b = get_tensor(string_format(TN_QF_SELF_ATTN_K, prefix, bid, "bias"));
pl.v_w = get_tensor(string_format(TN_QF_SELF_ATTN_V, prefix, bid, "weight"));
pl.v_b = get_tensor(string_format(TN_QF_SELF_ATTN_V, prefix, bid, "bias"));
pl.o_w = get_tensor(string_format(TN_QF_SELF_ATTN_O, prefix, bid, "weight"));
pl.o_b = get_tensor(string_format(TN_QF_SELF_ATTN_O, prefix, bid, "bias"));
pl.ln_1_w = get_tensor(string_format(TN_QF_SELF_ATTN_N, prefix, bid, "weight"));
pl.ln_1_b = get_tensor(string_format(TN_QF_SELF_ATTN_N, prefix, bid, "bias"));
pl.cross_attn_q_w = get_tensor(string_format(TN_QF_CROSS_ATTN_Q, prefix, bid, "weight"));
pl.cross_attn_q_b = get_tensor(string_format(TN_QF_CROSS_ATTN_Q, prefix, bid, "bias"));
pl.cross_attn_k_w = get_tensor(string_format(TN_QF_CROSS_ATTN_K, prefix, bid, "weight"));
pl.cross_attn_k_b = get_tensor(string_format(TN_QF_CROSS_ATTN_K, prefix, bid, "bias"));
pl.cross_attn_v_w = get_tensor(string_format(TN_QF_CROSS_ATTN_V, prefix, bid, "weight"));
pl.cross_attn_v_b = get_tensor(string_format(TN_QF_CROSS_ATTN_V, prefix, bid, "bias"));
pl.cross_attn_o_w = get_tensor(string_format(TN_QF_CROSS_ATTN_O, prefix, bid, "weight"));
pl.cross_attn_o_b = get_tensor(string_format(TN_QF_CROSS_ATTN_O, prefix, bid, "bias"));
pl.cross_attn_norm_w = get_tensor(string_format(TN_QF_CROSS_ATTN_N, prefix, bid, "weight"));
pl.cross_attn_norm_b = get_tensor(string_format(TN_QF_CROSS_ATTN_N, prefix, bid, "bias"));
pl.ff_up_w = get_tensor(string_format(TN_QF_FFN_UP, prefix, bid, "weight"));
pl.ff_up_b = get_tensor(string_format(TN_QF_FFN_UP, prefix, bid, "bias"));
pl.ff_down_w = get_tensor(string_format(TN_QF_FFN_DOWN, prefix, bid, "weight"));
pl.ff_down_b = get_tensor(string_format(TN_QF_FFN_DOWN, prefix, bid, "bias"));
pl.ln_2_w = get_tensor(string_format(TN_QF_FFN_NORM, prefix, bid, "weight"));
pl.ln_2_b = get_tensor(string_format(TN_QF_FFN_NORM, prefix, bid, "bias"));
}
} break;
default:
GGML_ASSERT(false && "unknown projector type");
}
// load data
if (!ctx_clip.no_alloc) {
std::vector<uint8_t> read_buf;
// start loading event
if (progress_callback){
progress_callback(0.0, progress_callback_user_data);
}
// compute total tensor data size for progress reporting
size_t total_data_size = 0;
for (auto & t : tensors_to_load) {
total_data_size += ggml_nbytes(t);
}
// alloc memory and offload data
ggml_backend_buffer_type_t buft = ggml_backend_get_default_buffer_type(ctx_clip.backend);
ctx_clip.buf.reset(ggml_backend_alloc_ctx_tensors_from_buft(ctx_clip.ctx_data.get(), buft));
ggml_backend_buffer_set_usage(ctx_clip.buf.get(), GGML_BACKEND_BUFFER_USAGE_WEIGHTS);
size_t data_loaded = 0;
for (auto & t : tensors_to_load) {
ggml_tensor * cur = ggml_get_tensor(ctx_clip.ctx_data.get(), t->name);
GGML_ASSERT(cur && "tensor not found in ctx_data");
auto it_off = tensor_offset.find(t->name);
GGML_ASSERT(it_off != tensor_offset.end() && "no offset for tensor");
const size_t offset = it_off->second;
fin.seekg(offset, std::ios::beg);
if (!fin) {
throw std::runtime_error(string_format("%s: failed to seek for tensor %s\n", __func__, t->name));
}
size_t num_bytes = ggml_nbytes(cur);
if (ggml_backend_buft_is_host(buft)) {
// for the CPU and Metal backend, we can read directly into the tensor
fin.read(reinterpret_cast<char *>(cur->data), num_bytes);
} else {
// read into a temporary buffer first, then copy to device memory
read_buf.resize(num_bytes);
fin.read(reinterpret_cast<char *>(read_buf.data()), num_bytes);
ggml_backend_tensor_set(cur, read_buf.data(), 0, num_bytes);
}
data_loaded += num_bytes;
if (progress_callback && total_data_size > 0) {
const float progress = (float)data_loaded / (float)total_data_size;
if (!progress_callback(progress, progress_callback_user_data)) {
throw std::runtime_error(string_format("%s: model loading cancelled by progress_callback\n", __func__));
}
}
}
fin.close();
LOG_DBG("%s: loaded %zu tensors from %s\n", __func__, tensors_to_load.size(), fname.c_str());
}
}
struct support_info_op {
ggml_tensor * op;
// true if the op runs on the accelerated ctx_clip.backend
bool is_accel = true;
};
struct support_info_graph {
// whether the clip_ctx.backend supports flash attention
bool fattn = true;
ggml_tensor * fattn_op = nullptr; // for debugging
std::vector<support_info_op> ops;
};
static clip_image_f32_batch get_dummy_batch(clip_ctx & ctx_clip) {
// create a fake batch
const auto & hparams = ctx_clip.model.hparams;
clip_image_f32_batch batch;
clip_image_f32 img;
if (ctx_clip.model.modality == CLIP_MODALITY_VISION) {
const int sz = hparams.warmup_image_size;
img.set_size({sz, sz}, false, false);
LOG_INF("%s: warmup with image size = %d x %d\n", __func__, sz, sz);
} else {
// GEMMA4UA uses n_mel_bins as a raw-waveform frame size (640), not a mel-bin count,
// so the [1, 256] bound only applies to FFT-based models.
const bool fft_based = ctx_clip.model.proj_type != PROJECTOR_TYPE_GEMMA4UA;
if (hparams.n_mel_bins <= 0 || (fft_based && hparams.n_mel_bins > 256)) {
throw std::runtime_error(string_format("%s: invalid n_mel_bins (%d), must be in [1, 256]\n", __func__, hparams.n_mel_bins));
}
img.set_size({hparams.warmup_audio_size, hparams.n_mel_bins}, false, false);
LOG_INF("%s: warmup with audio size = %d\n", __func__, hparams.warmup_audio_size);
}
batch.entries.push_back(img);
return batch;
}
static void init_ctx(clip_ctx & ctx_clip) {
ctx_clip.buf_compute_meta.resize(ctx_clip.max_nodes * ggml_tensor_overhead() + ggml_graph_overhead());
// check batching support
auto batch = get_dummy_batch(ctx_clip);
auto builder = clip_get_graph_builder(&ctx_clip, batch);
ctx_clip.support_batch = builder->support_batch();
}
static void warmup(clip_ctx & ctx_clip) {
auto batch = get_dummy_batch(ctx_clip);
warmup(ctx_clip, batch);
}
static void warmup(clip_ctx & ctx_clip, const clip_image_f32_batch & batch) {
support_info_graph info;
if (ctx_clip.flash_attn_type == CLIP_FLASH_ATTN_TYPE_AUTO) {
// try to enable flash attention to see if it's supported
ctx_clip.flash_attn_type = CLIP_FLASH_ATTN_TYPE_ENABLED;
info = reserve_compute_meta(ctx_clip, batch);
if (!info.fattn && info.fattn_op) {
auto op = info.fattn_op;
LOG_WRN("%s: *****************************************************************\n", __func__);
LOG_WRN("%s: WARNING: flash attention not supported by %s, memory usage will increase\n", __func__, ggml_backend_name(ctx_clip.backend));
LOG_WRN("%s: op params: \n", __func__);
static auto print_shape = [](const char * fn, const char * name, ggml_tensor * t) {
LOG_WRN("%s: %s: type = %s, ne = [%d %d %d %d], nb = [%d %d %d %d]\n", fn,
name, ggml_type_name(t->type),
t->ne[0], t->ne[1], t->ne[2], t->ne[3],
t->nb[0], t->nb[1], t->nb[2], t->nb[3]);
};
print_shape(__func__, " dst", op);
print_shape(__func__, "src0", op->src[0]);
print_shape(__func__, "src1", op->src[1]);
print_shape(__func__, "src2", op->src[2]);
LOG_WRN("%s: please report this on github as an issue\n", __func__);
LOG_WRN("%s: *****************************************************************\n", __func__);
ctx_clip.flash_attn_type = CLIP_FLASH_ATTN_TYPE_DISABLED;
reserve_compute_meta(ctx_clip, batch);
}
} else {
info = reserve_compute_meta(ctx_clip, batch);
if (!info.fattn && ctx_clip.flash_attn_type == CLIP_FLASH_ATTN_TYPE_ENABLED) {
LOG_WRN("%s: flash attention is not supported by the current backend; falling back to CPU (performance will be degraded)\n", __func__);
}
}
ctx_clip.is_allocated = true; // mark buffers as allocated
LOG_INF("%s: flash attention is %s\n", __func__,
(ctx_clip.flash_attn_type == CLIP_FLASH_ATTN_TYPE_ENABLED) ? "enabled" : "disabled");
// print ops that are not supported by the GPU backend (if there is one)
if (ctx_clip.backend && ctx_clip.backend != ctx_clip.backend_cpu) {
std::vector<support_info_op> unsupported_ops;
for (const auto & op : info.ops) {
if (!op.is_accel) {
unsupported_ops.push_back(op);
}
}
if (!unsupported_ops.empty()) {
LOG_WRN("%s: *****************************************************************\n", __func__);
LOG_WRN("%s: WARNING: the CLIP graph uses unsupported operators by the backend\n", __func__);
LOG_WRN("%s: the performance will be suboptimal \n", __func__);
LOG_WRN("%s: list of unsupported ops (backend=%s):\n", __func__, ggml_backend_name(ctx_clip.backend));
for (const auto & op : unsupported_ops) {
LOG_WRN("%s: %16s: type = %s, ne = [%d %d %d %d]\n", __func__,
ggml_op_name(op.op->op),
ggml_type_name(op.op->type),
op.op->ne[0], op.op->ne[1], op.op->ne[2], op.op->ne[3]);
}
LOG_WRN("%s: flash attention is %s\n", __func__,
(ctx_clip.flash_attn_type == CLIP_FLASH_ATTN_TYPE_ENABLED) ? "enabled" : "disabled");
LOG_WRN("%s: please report this on github as an issue\n", __func__);
LOG_WRN("%s: ref: https://github.com/ggml-org/llama.cpp/pull/16837#issuecomment-3461676118\n", __func__);
LOG_WRN("%s: *****************************************************************\n", __func__);
}
}
}
// only initialize backend buffers, but do not allocate them yet
static support_info_graph reserve_compute_meta(clip_ctx & ctx_clip, const clip_image_f32_batch & batch) {
ggml_cgraph * gf = clip_get_graph_builder(&ctx_clip, batch)->build();
ggml_backend_sched_reserve(ctx_clip.sched.get(), gf);
ctx_clip.mem_compute.clear();
for (size_t i = 0; i < ctx_clip.backend_ptrs.size(); ++i) {
ggml_backend_t backend = ctx_clip.backend_ptrs[i];
ggml_backend_buffer_type_t buft = ctx_clip.backend_buft[i];
size_t size = ggml_backend_sched_get_buffer_size(ctx_clip.sched.get(), backend);
if (size > 1) {
LOG_INF("%s: %10s compute buffer size = %8.2f MiB\n", __func__,
ggml_backend_buft_name(buft),
size / 1024.0 / 1024.0);
}
ctx_clip.mem_compute[ggml_backend_get_device(backend)] += size;
}
const int n_splits = ggml_backend_sched_get_n_splits(ctx_clip.sched.get());
const int n_nodes = ggml_graph_n_nodes(gf);
LOG_INF("%s: graph splits = %d, nodes = %d\n", __func__, n_splits, n_nodes);
support_info_graph res {
/*.fattn = */ true,
/*.fattn_op = */ nullptr,
/*.ops = */ {},
};
// check op support
for (int i = 0; i < ggml_graph_n_nodes(gf); i++) {
ggml_tensor * node = ggml_graph_node(gf, i);
res.ops.push_back({node, true});
if (!ggml_backend_supports_op(ctx_clip.backend, node)) {
res.ops.back().is_accel = false;
if (node->op == GGML_OP_FLASH_ATTN_EXT) {
res.fattn = false;
res.fattn_op = node;
}
}
}
return res;
}
void get_bool(const std::string & key, bool & output, bool required = true) const {
const int i = gguf_find_key(ctx_gguf.get(), key.c_str());
if (i < 0) {
if (required) {
throw std::runtime_error("Key not found: " + key);
}
return;
}
output = gguf_get_val_bool(ctx_gguf.get(), i);
}
void get_i32(const std::string & key, int & output, bool required = true) const {
const int i = gguf_find_key(ctx_gguf.get(), key.c_str());
if (i < 0) {
if (required) {
throw std::runtime_error("Key not found: " + key);
}
return;
}
output = gguf_get_val_i32(ctx_gguf.get(), i);
}
void get_u32(const std::string & key, int & output, bool required = true) const {
const int i = gguf_find_key(ctx_gguf.get(), key.c_str());
if (i < 0) {
if (required) {
throw std::runtime_error("Key not found: " + key);
}
return;
}
const uint32_t val = gguf_get_val_u32(ctx_gguf.get(), i);
// sanity check
if (val > (uint32_t) INT32_MAX) {
throw std::runtime_error(string_format("%s: value %u for key '%s' exceeds INT32_MAX\n",
__func__, val, key.c_str()));
}
output = (int) val;
}
void get_f32(const std::string & key, float & output, bool required = true) const {
const int i = gguf_find_key(ctx_gguf.get(), key.c_str());
if (i < 0) {
if (required) {
throw std::runtime_error("Key not found: " + key);
}
return;
}
output = gguf_get_val_f32(ctx_gguf.get(), i);
}
void get_string(const std::string & key, std::string & output, bool required = true) const {
const int i = gguf_find_key(ctx_gguf.get(), key.c_str());
if (i < 0) {
if (required) {
throw std::runtime_error("Key not found: " + key);
}
return;
}
output = std::string(gguf_get_val_str(ctx_gguf.get(), i));
}
void get_arr_int(const std::string & key, std::vector<int> & output, bool required = true) const {
const int i = gguf_find_key(ctx_gguf.get(), key.c_str());
if (i < 0) {
if (required) {
throw std::runtime_error("Key not found: " + key);
}
return;
}
int n = gguf_get_arr_n(ctx_gguf.get(), i);
output.resize(n);
const int32_t * values = (const int32_t *)gguf_get_arr_data(ctx_gguf.get(), i);
for (int i = 0; i < n; ++i) {
output[i] = values[i];
}
}
static void set_llava_uhd_res_candidates(clip_model & model, const int max_patches_per_side) {
auto & hparams = model.hparams;
for (int x = 1; x <= max_patches_per_side; x++) {
for (int y = 1; y <= max_patches_per_side; y++) {
if (x == 1 && y == 1) {
continue; // skip the first point
}
hparams.image_res_candidates.push_back(clip_image_size{
x*hparams.image_size,
y*hparams.image_size,
});
}
}
}
static void set_internvl_dhr_res_candidates(clip_model & model) {
auto & hparams = model.hparams;
int min_num = hparams.preproc_min_tiles;
int max_num = hparams.preproc_max_tiles;
if (min_num < 1) {
return; // avoid divide by 0
}
for (int a = min_num; a <= max_num; ++a) {
int b_lo = (min_num + a - 1) / a;
int b_hi = max_num / a;
b_lo = std::max(b_lo, min_num);
b_hi = std::min(b_hi, max_num);
for (int b = b_lo; b <= b_hi; ++b) {
hparams.image_res_candidates.push_back(clip_image_size {
a*hparams.image_size,
b*hparams.image_size,
});
}
}
}
};
struct clip_init_result clip_init(const char * fname, struct clip_context_params ctx_params) {
clip_ctx * ctx_vision = nullptr;
clip_ctx * ctx_audio = nullptr;
try {
clip_model_loader loader(fname,
/* skip_tensors */ false,
ctx_params.progress_callback,
ctx_params.progress_callback_user_data);
bool skip_audio = false;
if (loader.has_vision) {
ctx_vision = new clip_ctx(ctx_params);
loader.load_hparams(ctx_vision->model, CLIP_MODALITY_VISION);
loader.load_tensors(*ctx_vision);
loader.init_ctx(*ctx_vision);
if (ctx_params.warmup) {
loader.warmup(*ctx_vision);
}
// TODO: we don't support audio for Gemma 3N, but GGUF contains audio tensors
// we can remove this check when we implement audio support for Gemma 3N
skip_audio = ctx_vision->model.proj_type == PROJECTOR_TYPE_GEMMA3NV;
}
if (loader.has_audio && !skip_audio) {
ctx_audio = new clip_ctx(ctx_params);
loader.load_hparams(ctx_audio->model, CLIP_MODALITY_AUDIO);
loader.load_tensors(*ctx_audio);
loader.init_ctx(*ctx_audio);
if (ctx_params.warmup) {
loader.warmup(*ctx_audio);
}
}
} catch (const std::exception & e) {
LOG_ERR("%s: failed to load model '%s': %s\n", __func__, fname, e.what());
delete ctx_vision;
delete ctx_audio;
return {nullptr, nullptr};
}
return {ctx_vision, ctx_audio};
}
struct clip_cap clip_get_cap(const char * fname) {
clip_cap res;
clip_model_loader loader(fname, /* skip_tensors= */ true);
res.has_vision = loader.has_vision;
res.has_audio = loader.has_audio;
return res;
}
void clip_free(clip_ctx * ctx) {
if (ctx == nullptr) {
return;
}
delete ctx;
}
const char * clip_patch_merge_type(const struct clip_ctx * ctx) {
return ctx->model.hparams.mm_patch_merge_type == PATCH_MERGE_SPATIAL_UNPAD ? "spatial_unpad" : "flat";
}
int clip_n_output_tokens_x(const clip_ctx * ctx, const clip_image_f32 * img) {
const auto & params = ctx->model.hparams;
const int n_total = clip_n_output_tokens(ctx, img);
const auto & proj = ctx->proj_type();
switch (proj) {
case PROJECTOR_TYPE_QWEN2VL:
case PROJECTOR_TYPE_QWEN25VL:
case PROJECTOR_TYPE_QWEN3VL:
case PROJECTOR_TYPE_EXAONE4_5:
case PROJECTOR_TYPE_MIMOVL:
case PROJECTOR_TYPE_GLM4V:
case PROJECTOR_TYPE_PADDLEOCR:
case PROJECTOR_TYPE_HUNYUANVL:
case PROJECTOR_TYPE_YOUTUVL:
return (img->nx() / params.patch_size) / 2;
case PROJECTOR_TYPE_STEP3VL:
return img->nx() / (params.patch_size * params.n_merge);
default:
break;
}
return n_total;
}
int clip_n_output_tokens_y(const clip_ctx * ctx, const clip_image_f32 * img) {
const auto & params = ctx->model.hparams;
const auto & proj = ctx->proj_type();
switch (proj) {
case PROJECTOR_TYPE_QWEN2VL:
case PROJECTOR_TYPE_QWEN25VL:
case PROJECTOR_TYPE_QWEN3VL:
case PROJECTOR_TYPE_EXAONE4_5:
case PROJECTOR_TYPE_MIMOVL:
case PROJECTOR_TYPE_GLM4V:
case PROJECTOR_TYPE_PADDLEOCR:
case PROJECTOR_TYPE_HUNYUANVL:
case PROJECTOR_TYPE_YOUTUVL:
return (img->ny() / params.patch_size) / 2;
case PROJECTOR_TYPE_STEP3VL:
return img->ny() / (params.patch_size * params.n_merge);
default:
break;
}
return 1;
}
int clip_n_output_tokens(const clip_ctx * ctx, const clip_image_f32 * img) {
const auto & params = ctx->model.hparams;
// for models with fixed size image, the input image is already pre-processed and resized to square
int patch_size = params.patch_size;
int n_patches = (img->nx() / patch_size) * (img->ny() / patch_size);
projector_type proj = ctx->proj_type();
switch (proj) {
case PROJECTOR_TYPE_MLP:
case PROJECTOR_TYPE_MLP_NORM:
case PROJECTOR_TYPE_JANUS_PRO:
case PROJECTOR_TYPE_PHI4:
{
// do nothing
} break;
case PROJECTOR_TYPE_YASA2:
{
n_patches = 64; // adaptive average pooling to 8x8 tokens
} break;
case PROJECTOR_TYPE_LDP:
case PROJECTOR_TYPE_LDPV2:
case PROJECTOR_TYPE_GLM_EDGE:
{
n_patches /= 4;
if (ctx->model.mm_boi) {
n_patches += 2; // for BOI and EOI token embeddings
}
} break;
case PROJECTOR_TYPE_MINICPMV:
{
// Use actual config value if available, otherwise fall back to hardcoded values
if (params.minicpmv_query_num > 0) {
n_patches = params.minicpmv_query_num;
} else {
// Fallback to hardcoded values for legacy models
if (params.minicpmv_version == 2) {
n_patches = 96;
} else if (params.minicpmv_version == 3) {
n_patches = 64;
} else if (params.minicpmv_version == 4) {
n_patches = 64;
} else if (params.minicpmv_version == 5) {
// MiniCPM-V 4.0
n_patches = 64;
} else if (params.minicpmv_version == 6) {
// MiniCPM-V 4.5
n_patches = 64;
} else if (params.minicpmv_version == 100045) {
// MiniCPM-o 4.5
n_patches = 64;
} else {
GGML_ABORT("Unknown minicpmv version");
}
}
} break;
case PROJECTOR_TYPE_MINICPMV4_6:
{
// ViT merger 4x + final merger 4x = 16x total spatial downsample
n_patches = n_patches / 16;
} break;
case PROJECTOR_TYPE_QWEN2VL:
case PROJECTOR_TYPE_QWEN25VL:
case PROJECTOR_TYPE_QWEN3VL:
case PROJECTOR_TYPE_EXAONE4_5:
case PROJECTOR_TYPE_MIMOVL:
case PROJECTOR_TYPE_GLM4V:
case PROJECTOR_TYPE_YOUTUVL:
{
// dynamic size (2 conv, so double patch size)
int x_patch = img->nx() / (params.patch_size * 2);
int y_patch = img->ny() / (params.patch_size * 2);
n_patches = x_patch * y_patch;
} break;
case PROJECTOR_TYPE_STEP3VL:
{
int x_patch = img->nx() / (params.patch_size * params.n_merge);
int y_patch = img->ny() / (params.patch_size * params.n_merge);
n_patches = x_patch * y_patch;
} break;
case PROJECTOR_TYPE_GEMMA3:
case PROJECTOR_TYPE_GEMMA4V:
case PROJECTOR_TYPE_GEMMA4UV:
case PROJECTOR_TYPE_IDEFICS3:
case PROJECTOR_TYPE_INTERNVL:
case PROJECTOR_TYPE_NEMOTRON_V2_VL:
case PROJECTOR_TYPE_LLAMA4:
{
// both X and Y are downscaled by the scale factor
int scale_factor = ctx->model.hparams.n_merge;
n_patches /= (scale_factor * scale_factor);
} break;
case PROJECTOR_TYPE_GEMMA3NV:
{
// MobileNetV5 MSFA adapter always outputs fixed 16x16 resolution
// regardless of input size (see architecture description)
n_patches = ctx->model.hparams.image_size / ctx->model.hparams.patch_size;
} break;
case PROJECTOR_TYPE_LFM2:
case PROJECTOR_TYPE_KIMIVL:
case PROJECTOR_TYPE_KIMIK25:
{
// dynamic size
int out_patch_size = params.patch_size * ctx->model.hparams.n_merge;
int x_patch = CLIP_ALIGN(img->nx(), out_patch_size) / out_patch_size;
int y_patch = CLIP_ALIGN(img->ny(), out_patch_size) / out_patch_size;
n_patches = x_patch * y_patch;
} break;
case PROJECTOR_TYPE_PADDLEOCR:
case PROJECTOR_TYPE_DOTS_OCR:
{
// dynamic size
int n_merge = ctx->model.hparams.n_merge;
int stride = n_merge * n_merge;
n_patches = CLIP_ALIGN(n_patches, stride) / stride;
} break;
case PROJECTOR_TYPE_PIXTRAL:
case PROJECTOR_TYPE_LIGHTONOCR:
{
// dynamic size
int n_merge = ctx->model.hparams.n_merge;
int n_patches_x = img->nx() / patch_size / (n_merge > 0 ? n_merge : 1);
int n_patches_y = img->ny() / patch_size / (n_merge > 0 ? n_merge : 1);
if (ctx->model.token_embd_img_break) {
n_patches = n_patches_y * n_patches_x + n_patches_y - 1; // + one [IMG_BREAK] per row, except the last row
} else {
n_patches = n_patches_y * n_patches_x;
}
} break;
case PROJECTOR_TYPE_VOXTRAL:
case PROJECTOR_TYPE_ULTRAVOX:
case PROJECTOR_TYPE_QWEN2A:
case PROJECTOR_TYPE_MERALION:
case PROJECTOR_TYPE_MUSIC_FLAMINGO:
{
n_patches = img->nx();
const int proj_stack_factor = ctx->model.hparams.proj_stack_factor;
if (ctx->model.audio_has_stack_frames()) {
GGML_ASSERT(proj_stack_factor > 0);
const int n_len = CLIP_ALIGN(n_patches, proj_stack_factor);
n_patches = n_len / proj_stack_factor;
}
// whisper downscales input token by half after conv1d
n_patches /= 2;
if (ctx->model.audio_has_avgpool()) {
// divide by 2 because of nn.AvgPool1d(2, stride=2)
n_patches /= 2;
}
} break;
case PROJECTOR_TYPE_QWEN3A:
{
// chunk_size=100 frames --> 3x stride-2 conv2d --> 13 tokens per chunk
const int chunk_size = 100;
const int tokens_per_chunk = 13;
n_patches = (img->nx() / chunk_size) * tokens_per_chunk;
} break;
case PROJECTOR_TYPE_GLMA:
{
n_patches = img->nx();
// whisper downscales input token by half after conv1d
n_patches /= 2;
// reshape by merge_factor
n_patches /= ctx->model.hparams.proj_stack_factor;
// for BOI and EOI token embeddings
n_patches += 2;
} break;
case PROJECTOR_TYPE_COGVLM:
{
n_patches += 2; // for BOI and EOI token embeddings
} break;
case PROJECTOR_TYPE_DEEPSEEKOCR:
{
// SAM encoder applies two stride-2 convolutions (net_2 and net_3)
// that reduce spatial dimensions by 4x in each direction (16x total)
// E.g., 64x64 -> 16x16 patches
n_patches /= 16;
// build_global_local_features adds image newlines and view separator
// Formula: h*(w+1) + 1 where h = w = sqrt(n_patches)
int h = static_cast<int>(std::sqrt(static_cast<float>(n_patches)));
n_patches = h * (h + 1) + 1;
} break;
case PROJECTOR_TYPE_HUNYUANVL:
{
int merge = ctx->model.hparams.n_merge;
int ow = (img->nx() / patch_size) / merge;
int oh = (img->ny() / patch_size) / merge;
n_patches = (ow + 1) * oh + 2;
} break;
case PROJECTOR_TYPE_DEEPSEEKOCR2:
{
// 1024 global view -> 256 query tokens + 1 view separator = 257;
// 768 local tile -> 144 query tokens, no separator.
n_patches /= 16;
if (img->add_viewsep) {
n_patches += 1; // view separator, appended only after the global view
}
} break;
case PROJECTOR_TYPE_LFM2A:
{
n_patches = ((((img->nx() + 1) / 2) + 1) / 2 + 1) / 2;
} break;
case PROJECTOR_TYPE_GEMMA4A:
{
// Two Conv2D stride-2: O = floor((I + 2p - k) / s) + 1, p=1, k=3, s=2
// O = floor((I - 1) / 2) + 1
int n = img->nx();
for (int i = 0; i < 2; i++) {
n = (n - 1) / 2 + 1;
}
n_patches = n;
} break;
case PROJECTOR_TYPE_GEMMA4UA:
{
n_patches = img->nx(); // no downsampling: one token per raw waveform frame
} break;
case PROJECTOR_TYPE_GRANITE_SPEECH:
{
const int ws = ctx->model.hparams.audio_proj_window_size;
const int ds = ctx->model.hparams.audio_proj_downsample_rate;
n_patches = ((img->nx() + ws - 1) / ws) * (ws / ds);
} break;
case PROJECTOR_TYPE_GRANITE4_VISION:
{
// Per-tile output token count: each projector block outputs
// query_side^2 tokens per window × n^2 windows.
// For 384×384 input: n = 24/8 = 3, query_side = 4 → 144.
const int window_side = ctx->model.hparams.downsample_window_side;
const int query_side = ctx->model.hparams.downsample_query_side;
const int side = img->nx() / params.patch_size;
const int n = side / window_side;
n_patches = (query_side * n) * (query_side * n);
if (img->add_newline) {
// For single-tile case: append 1 newline row.
// For multi-tile rowwise: handled by caller, but here we
// report the per-tile count including one trailing newline.
n_patches += 1;
}
} break;
default:
GGML_ABORT("unsupported projector type");
}
return n_patches;
}
bool clip_image_encode(struct clip_ctx * ctx, int n_threads, const clip_image_f32 * img, std::vector<float> & out_vec) {
clip_image_f32_batch imgs;
clip_image_f32 img_copy = *img;
imgs.entries.push_back(std::move(img_copy));
return clip_image_batch_encode(ctx, n_threads, &imgs, out_vec);
}
bool clip_image_batch_encode(clip_ctx * ctx, int n_threads, const clip_image_f32_batch * imgs_c_ptr, std::vector<float> & out_batch_embd) {
const clip_image_f32_batch & imgs = *imgs_c_ptr;
int n_batch_cur = imgs.entries.size();
// [QWEN_VIDEO] for video models, the batch dimension is used as temporal dimension for merged frames
if (!ctx->support_batch && n_batch_cur > clip_model_n_temporal_merge(ctx)) {
LOG_ERR("%s: batch size %d exceeds maximum supported batch/temporal-merge size %d\n", __func__, n_batch_cur, clip_model_n_temporal_merge(ctx));
return false;
}
// if buffers are not allocated, we need to do a warmup run to allocate them
if (!ctx->is_allocated) {
clip_model_loader::warmup(*ctx, *imgs_c_ptr);
}
// build the inference graph
ggml_backend_sched_reset(ctx->sched.get());
ggml_cgraph * gf = clip_get_graph_builder(ctx, imgs)->build();
ggml_backend_sched_alloc_graph(ctx->sched.get(), gf);
// set inputs
const auto & model = ctx->model;
const auto & hparams = model.hparams;
const int image_size_width = imgs.entries[0].nx();
const int image_size_height = imgs.entries[0].ny();
const int patch_size = hparams.patch_size;
const int num_patches = ((image_size_width / patch_size) * (image_size_height / patch_size));
const int n_pos = num_patches + (model.class_embedding ? 1 : 0);
const int pos_w = image_size_width / patch_size;
const int pos_h = image_size_height / patch_size;
auto get_inp_tensor = [&gf](const char * name) {
ggml_tensor * inp = ggml_graph_get_tensor(gf, name);
if (inp == nullptr) {
GGML_ABORT("Failed to get tensor %s", name);
}
if (!(inp->flags & GGML_TENSOR_FLAG_INPUT)) {
GGML_ABORT("Tensor %s is not an input tensor", name);
}
return inp;
};
auto set_input_f32 = [&get_inp_tensor](const char * name, const std::vector<float> & values) {
ggml_tensor * cur = get_inp_tensor(name);
GGML_ASSERT(cur->type == GGML_TYPE_F32);
GGML_ASSERT(ggml_nelements(cur) == (int64_t)values.size());
ggml_backend_tensor_set(cur, values.data(), 0, ggml_nbytes(cur));
};
auto set_input_i32 = [&get_inp_tensor](const char * name, std::vector<int32_t> & values) {
ggml_tensor * cur = get_inp_tensor(name);
GGML_ASSERT(cur->type == GGML_TYPE_I32);
GGML_ASSERT(ggml_nelements(cur) == (int64_t)values.size());
ggml_backend_tensor_set(cur, values.data(), 0, ggml_nbytes(cur));
};
// set input pixel values
if (!imgs.is_audio) {
size_t nelem = 0;
for (const auto & img : imgs.entries) {
nelem += img.nx() * img.ny() * 3;
}
std::vector<float> inp_raw(nelem);
// layout of data (note: the channel dim is unrolled to better visualize the layout):
//
// ┌──W──┐
// │ H │ channel = R
// ├─────┤ │
// │ H │ channel = G
// ├─────┤ │
// │ H │ channel = B
// └─────┘ │
// ──────┘ x B
// IMPORTANT: [QWEN_VIDEO] the batch dim is currently used for temporal dim in Qwen-VL models
// All entries must have the same spatial size (enforced by can_batch_with() during merging)
{
const int nx = imgs.entries[0].nx();
const int ny = imgs.entries[0].ny();
const int n = nx * ny;
for (int b = 0; b < n_batch_cur; b++) {
LOG_DBG("%s: copying image %d/%d to input buffer (nx=%d, ny=%d)\n", __func__, b+1, n_batch_cur, nx, ny);
const auto & buf = imgs.entries[b].get_ro_buf();
float * batch_entry = inp_raw.data() + b * (3*n);
for (int y = 0; y < ny; y++) {
for (int x = 0; x < nx; x++) {
size_t base_src = 3*(y * nx + x);
size_t base_dst = y * nx + x;
batch_entry[ base_dst] = buf[base_src ];
batch_entry[1*n + base_dst] = buf[base_src + 1];
batch_entry[2*n + base_dst] = buf[base_src + 2];
}
}
}
}
set_input_f32("inp_raw", inp_raw);
} else {
// audio input
GGML_ASSERT(imgs.entries.size() == 1);
const auto & mel_inp = imgs.entries[0];
const auto & buf = mel_inp.get_ro_buf();
const int n_step = mel_inp.nx();
const int n_mel = mel_inp.ny();
GGML_ASSERT((size_t)n_step * n_mel == buf.size());
set_input_f32("inp_raw", buf);
}
// set input per projector
switch (ctx->model.proj_type) {
case PROJECTOR_TYPE_MINICPMV:
{
// inspired from siglip:
// -> https://huggingface.co/HuggingFaceM4/siglip-so400m-14-980-flash-attn2-navit
// -> https://huggingface.co/HuggingFaceM4/siglip-so400m-14-980-flash-attn2-navit/blob/d66538faeba44480d0bfaa42145eef26f9423199/modeling_siglip.py#L316
std::vector<int32_t> positions(pos_h * pos_w);
int bucket_coords_h[1024];
int bucket_coords_w[1024];
for (int i = 0; i < pos_h; i++){
bucket_coords_h[i] = std::floor(70.0*i/pos_h);
}
for (int i = 0; i < pos_w; i++){
bucket_coords_w[i] = std::floor(70.0*i/pos_w);
}
for (int i = 0, id = 0; i < pos_h; i++){
for (int j = 0; j < pos_w; j++){
positions[id++] = bucket_coords_h[i]*70 + bucket_coords_w[j];
}
}
set_input_i32("positions", positions);
// inputs for resampler projector
// set the 2D positions (using float for sinusoidal embedding)
int n_patches_per_col = image_size_width / patch_size;
std::vector<float> pos_data(n_pos);
// dimension H
for (int i = 0; i < n_pos; i++) {
pos_data[i] = static_cast<float>(i / n_patches_per_col);
}
set_input_f32("pos_h", pos_data);
// dimension W
for (int i = 0; i < n_pos; i++) {
pos_data[i] = static_cast<float>(i % n_patches_per_col);
}
set_input_f32("pos_w", pos_data);
// base frequency omega
const float base_freq = 10000.0f;
const int n_embd_proj = clip_n_mmproj_embd(ctx);
std::vector<float> omega(n_embd_proj / 4);
for (int i = 0; i < n_embd_proj / 4; ++i) {
omega[i] = 1.0f / std::pow(base_freq, static_cast<float>(i) / (n_embd_proj / 4));
}
set_input_f32("omega", omega);
} break;
case PROJECTOR_TYPE_MINICPMV4_6:
{
// SigLIP position buckets (same as resampler path)
std::vector<int32_t> positions(pos_h * pos_w);
int bucket_coords_h[1024];
int bucket_coords_w[1024];
for (int i = 0; i < pos_h; i++){
bucket_coords_h[i] = std::floor(70.0*i/pos_h);
}
for (int i = 0; i < pos_w; i++){
bucket_coords_w[i] = std::floor(70.0*i/pos_w);
}
for (int i = 0, id = 0; i < pos_h; i++){
for (int j = 0; j < pos_w; j++){
positions[id++] = bucket_coords_h[i]*70 + bucket_coords_w[j];
}
}
set_input_i32("positions", positions);
const int half_h = pos_h / 2;
const int half_w = pos_w / 2;
// window reorder indices for 2x2 windows
std::vector<int32_t> window_idx(n_pos);
std::vector<int32_t> inv_window_idx(n_pos);
{
int k = 0;
for (int wi = 0; wi < half_h; wi++) {
for (int wj = 0; wj < half_w; wj++) {
window_idx[k++] = (2*wi ) * pos_w + (2*wj );
window_idx[k++] = (2*wi ) * pos_w + (2*wj + 1);
window_idx[k++] = (2*wi + 1) * pos_w + (2*wj );
window_idx[k++] = (2*wi + 1) * pos_w + (2*wj + 1);
}
}
for (int i = 0; i < n_pos; i++) {
inv_window_idx[window_idx[i]] = i;
}
}
set_input_i32("vit_merger_window_idx", window_idx);
set_input_i32("vit_merger_inv_window_idx", inv_window_idx);
// block-diagonal attention mask: tokens in the same 4-token
// window attend to each other (mask = 0), all other positions
// are masked out (-inf). matches the window-major reorder above.
std::vector<float> window_mask_data(n_pos * n_pos, std::numeric_limits<float>::lowest());
for (int wi = 0; wi < n_pos / 4; wi++) {
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 4; j++) {
window_mask_data[(wi*4 + i) * n_pos + (wi*4 + j)] = 0.0f;
}
}
}
set_input_f32("vit_merger_window_mask", window_mask_data);
// ViT merger 2x2 downsample indices
auto make_ds_idx = [](int off_r, int off_c, int ds_h, int ds_w, int stride_w) {
std::vector<int32_t> idx(ds_h * ds_w);
for (int i = 0; i < ds_h; i++) {
for (int j = 0; j < ds_w; j++) {
idx[i * ds_w + j] = (2*i + off_r) * stride_w + (2*j + off_c);
}
}
return idx;
};
auto vit_merger_ds_0 = make_ds_idx(0, 0, half_h, half_w, pos_w);
auto vit_merger_ds_1 = make_ds_idx(0, 1, half_h, half_w, pos_w);
auto vit_merger_ds_2 = make_ds_idx(1, 0, half_h, half_w, pos_w);
auto vit_merger_ds_3 = make_ds_idx(1, 1, half_h, half_w, pos_w);
set_input_i32("vit_merger_ds_idx_0", vit_merger_ds_0);
set_input_i32("vit_merger_ds_idx_1", vit_merger_ds_1);
set_input_i32("vit_merger_ds_idx_2", vit_merger_ds_2);
set_input_i32("vit_merger_ds_idx_3", vit_merger_ds_3);
// final merger 2x2 downsample indices (operates on half_h x half_w grid)
const int qh = half_h / 2;
const int qw = half_w / 2;
auto m_ds_0 = make_ds_idx(0, 0, qh, qw, half_w);
auto m_ds_1 = make_ds_idx(0, 1, qh, qw, half_w);
auto m_ds_2 = make_ds_idx(1, 0, qh, qw, half_w);
auto m_ds_3 = make_ds_idx(1, 1, qh, qw, half_w);
set_input_i32("merger_ds_idx_0", m_ds_0);
set_input_i32("merger_ds_idx_1", m_ds_1);
set_input_i32("merger_ds_idx_2", m_ds_2);
set_input_i32("merger_ds_idx_3", m_ds_3);
} break;
case PROJECTOR_TYPE_QWEN2VL:
case PROJECTOR_TYPE_QWEN3VL:
case PROJECTOR_TYPE_GLM4V:
{
const int merge_ratio = hparams.n_merge;
const int pw = image_size_width / patch_size;
const int ph = image_size_height / patch_size;
std::vector<int> positions(n_pos * 4);
int ptr = 0;
for (int y = 0; y < ph; y += merge_ratio) {
for (int x = 0; x < pw; x += merge_ratio) {
for (int dy = 0; dy < 2; dy++) {
for (int dx = 0; dx < 2; dx++) {
positions[ ptr] = y + dy;
positions[ num_patches + ptr] = x + dx;
positions[2 * num_patches + ptr] = y + dy;
positions[3 * num_patches + ptr] = x + dx;
ptr++;
}
}
}
}
set_input_i32("positions", positions);
} break;
case PROJECTOR_TYPE_STEP3VL:
{
std::vector<int32_t> pos_data(n_pos);
for (int i = 0; i < n_pos; i++) {
pos_data[i] = i / pos_w;
}
set_input_i32("pos_h", pos_data);
for (int i = 0; i < n_pos; i++) {
pos_data[i] = i % pos_w;
}
set_input_i32("pos_w", pos_data);
} break;
case PROJECTOR_TYPE_PADDLEOCR:
{
const int merge_ratio = hparams.n_merge;
const int pw = image_size_width / patch_size;
const int ph = image_size_height / patch_size;
std::vector<int> positions(n_pos * 4);
int ptr = 0;
// NOTE: same as Qwen-VL, but x and y are swapped
for (int y = 0; y < ph; y += merge_ratio) {
for (int dy = 0; dy < 2; dy++) {
for (int x = 0; x < pw; x += merge_ratio) {
for (int dx = 0; dx < 2; dx++) {
positions[ ptr] = y + dy;
positions[ num_patches + ptr] = x + dx;
positions[2 * num_patches + ptr] = y + dy;
positions[3 * num_patches + ptr] = x + dx;
ptr++;
}
}
}
}
set_input_i32("positions", positions);
} break;
case PROJECTOR_TYPE_DOTS_OCR:
{
const int pw = image_size_width / patch_size;
const int ph = image_size_height / patch_size;
const int n_pos = ph * pw;
std::vector<int> positions(n_pos * 4);
int ptr = 0;
// flat layout: [h, w, h, w] for each patch
// patches are in raster order (matching conv2d output)
for (int y = 0; y < ph; y++) {
for (int x = 0; x < pw; x++) {
positions[ ptr] = y;
positions[ n_pos + ptr] = x;
positions[2*n_pos + ptr] = y;
positions[3*n_pos + ptr] = x;
ptr++;
}
}
set_input_i32("positions", positions);
} break;
case PROJECTOR_TYPE_QWEN25VL:
case PROJECTOR_TYPE_EXAONE4_5:
case PROJECTOR_TYPE_YOUTUVL:
{
// pw * ph = number of tokens output by ViT after apply patch merger
// ipw * ipw = number of vision token been processed inside ViT
const bool use_window_attn =
(ctx->model.proj_type == PROJECTOR_TYPE_QWEN25VL || ctx->model.proj_type == PROJECTOR_TYPE_EXAONE4_5)
? hparams.n_wa_pattern > 0
: !hparams.wa_layer_indexes.empty();
const int merge_ratio = 2;
const int pw = image_size_width / patch_size / merge_ratio;
const int ph = image_size_height / patch_size / merge_ratio;
const int ipw = image_size_width / patch_size;
const int iph = image_size_height / patch_size;
std::vector<int> idx (ph * pw);
std::vector<int> inv_idx(ph * pw);
if (use_window_attn) {
const int attn_window_size = hparams.attn_window_size > 0 ? hparams.attn_window_size : 112;
const int grid_window = attn_window_size / patch_size / merge_ratio;
int dst = 0;
// [num_vision_tokens, num_vision_tokens] attention mask tensor
std::vector<float> mask(pow(ipw * iph, 2), std::numeric_limits<float>::lowest());
int mask_row = 0;
for (int y = 0; y < ph; y += grid_window) {
for (int x = 0; x < pw; x += grid_window) {
const int win_h = std::min(grid_window, ph - y);
const int win_w = std::min(grid_window, pw - x);
const int dst_0 = dst;
// group all tokens belong to the same window togather (to a continue range)
for (int dy = 0; dy < win_h; dy++) {
for (int dx = 0; dx < win_w; dx++) {
const int src = (y + dy) * pw + (x + dx);
GGML_ASSERT(src < (int)idx.size());
GGML_ASSERT(dst < (int)inv_idx.size());
idx [src] = dst;
inv_idx[dst] = src;
dst++;
}
}
for (int r=0; r < win_h * win_w * merge_ratio * merge_ratio; r++) {
int row_offset = mask_row * (ipw * iph);
std::fill(
mask.begin() + row_offset + (dst_0 * merge_ratio * merge_ratio),
mask.begin() + row_offset + (dst * merge_ratio * merge_ratio),
0.0);
mask_row++;
}
}
}
set_input_i32("window_idx", idx);
set_input_i32("inv_window_idx", inv_idx);
set_input_f32("window_mask", mask);
} else {
for (int i = 0; i < ph * pw; i++) {
idx[i] = i;
}
}
const int mpow = merge_ratio * merge_ratio;
std::vector<int> positions(n_pos * 4);
int ptr = 0;
for (int y = 0; y < iph; y += merge_ratio) {
for (int x = 0; x < ipw; x += merge_ratio) {
for (int dy = 0; dy < 2; dy++) {
for (int dx = 0; dx < 2; dx++) {
auto remap = idx[ptr / mpow];
remap = (remap * mpow) + (ptr % mpow);
positions[ remap] = y + dy;
positions[ num_patches + remap] = x + dx;
positions[2 * num_patches + remap] = y + dy;
positions[3 * num_patches + remap] = x + dx;
ptr++;
}
}
}
}
set_input_i32("positions", positions);
} break;
case PROJECTOR_TYPE_MIMOVL:
{
const int merge = hparams.n_merge; // 2
const int merge_unit = merge * merge; // 4
const int patch = hparams.patch_size; // 16
const int H = image_size_height / patch;
const int W = image_size_width / patch;
const int n_pos_full = H * W;
const int llm_h = H / merge;
const int llm_w = W / merge;
const int n_units = llm_h * llm_w; // n_pos / merge_unit
// Row-major merge-tile-ordered (h, w) positions
std::vector<int32_t> pos_h_row(n_pos_full);
std::vector<int32_t> pos_w_row(n_pos_full);
{
int idx = 0;
for (int ty = 0; ty < llm_h; ty++) {
for (int tx = 0; tx < llm_w; tx++) {
for (int dy = 0; dy < merge; dy++) {
for (int dx = 0; dx < merge; dx++) {
pos_h_row[idx] = ty * merge + dy;
pos_w_row[idx] = tx * merge + dx;
idx++;
}
}
}
}
}
// Col-major merge-unit permutation
std::vector<float> idx_col(n_units);
for (int r = 0; r < llm_h; r++) {
for (int c = 0; c < llm_w; c++) {
int u_row = r * llm_w + c;
int u_col = c * llm_h + r;
idx_col[u_col] = (float) u_row;
}
}
// Col-mode positions: permute pos_*_row by idx_col
std::vector<int32_t> pos_h_col(n_pos_full);
std::vector<int32_t> pos_w_col(n_pos_full);
for (int u = 0; u < n_units; u++) {
int src = (int) idx_col[u];
for (int k = 0; k < merge_unit; k++) {
pos_h_col[u * merge_unit + k] = pos_h_row[src * merge_unit + k];
pos_w_col[u * merge_unit + k] = pos_w_row[src * merge_unit + k];
}
}
// Pack into ggml_rope_multi VISION-mode layout. The non-CPU kernels
// only read slots 0 and 1, so pack h in slot 0, w in slot 1:
// positions[0..n_pos) = h
// positions[n_pos..2*n_pos) = w
// positions[2*n_pos..3*n_pos) = 0
// positions[3*n_pos..4*n_pos) = 0
std::vector<int32_t> positions_row(static_cast<size_t>(n_pos_full) * 4, 0);
std::vector<int32_t> positions_col(static_cast<size_t>(n_pos_full) * 4, 0);
for (int i = 0; i < n_pos_full; i++) {
positions_row[0 * n_pos_full + i] = pos_h_row[i];
positions_row[1 * n_pos_full + i] = pos_w_row[i];
positions_col[0 * n_pos_full + i] = pos_h_col[i];
positions_col[1 * n_pos_full + i] = pos_w_col[i];
}
// Banded 1D sliding-window mask
const int window = hparams.attn_window_size;
GGML_ASSERT(window > 0);
std::vector<float> mask(static_cast<size_t>(n_pos_full) * n_pos_full, std::numeric_limits<float>::lowest());
for (int q = 0; q < n_pos_full; q++) {
int lo = std::max(0, q - window);
int hi = std::min(n_pos_full - 1, q + window);
for (int k = lo; k <= hi; k++) {
mask[static_cast<size_t>(q) * n_pos_full + k] = 0.0f;
}
}
set_input_i32("mimovl_positions_row", positions_row);
set_input_i32("mimovl_positions_col", positions_col);
set_input_f32("mimovl_idx_col", idx_col);
set_input_f32("mimovl_window_mask", mask);
} break;
case PROJECTOR_TYPE_PIXTRAL:
case PROJECTOR_TYPE_KIMIVL:
case PROJECTOR_TYPE_KIMIK25:
case PROJECTOR_TYPE_LIGHTONOCR:
{
// set the 2D positions
int n_patches_per_col = image_size_width / patch_size;
std::vector<int> pos_data(n_pos);
// dimension H
for (int i = 0; i < n_pos; i++) {
pos_data[i] = i / n_patches_per_col;
}
set_input_i32("pos_h", pos_data);
// dimension W
for (int i = 0; i < n_pos; i++) {
pos_data[i] = i % n_patches_per_col;
}
set_input_i32("pos_w", pos_data);
} break;
case PROJECTOR_TYPE_GLM_EDGE:
{
// llava and other models
std::vector<int32_t> positions(n_pos);
for (int i = 0; i < n_pos; i++) {
positions[i] = i;
}
set_input_i32("positions", positions);
} break;
case PROJECTOR_TYPE_MLP:
case PROJECTOR_TYPE_MLP_NORM:
case PROJECTOR_TYPE_LDP:
case PROJECTOR_TYPE_LDPV2:
{
// llava and other models
std::vector<int32_t> positions(n_pos);
for (int i = 0; i < n_pos; i++) {
positions[i] = i;
}
set_input_i32("positions", positions);
// The patches vector is used to get rows to index into the embeds with;
// we should skip dim 0 only if we have CLS to avoid going out of bounds
// when retrieving the rows.
int patch_offset = model.class_embedding ? 1 : 0;
std::vector<int32_t> patches(num_patches);
for (int i = 0; i < num_patches; i++) {
patches[i] = i + patch_offset;
}
set_input_i32("patches", patches);
} break;
case PROJECTOR_TYPE_GEMMA4V:
case PROJECTOR_TYPE_GEMMA4UV:
{
// set (col, row) patch positions for learned positional embedding
const int n_cols = image_size_width / patch_size;
std::vector<int> pos_x(num_patches), pos_y(num_patches);
for (int i = 0; i < num_patches; i++) {
pos_x[i] = i % n_cols;
pos_y[i] = i / n_cols;
}
set_input_i32("pos_x", pos_x);
set_input_i32("pos_y", pos_y);
} break;
case PROJECTOR_TYPE_DEEPSEEKOCR:
case PROJECTOR_TYPE_DEEPSEEKOCR2:
{
GGML_ASSERT(pos_w == pos_h);
const int window = hparams.attn_window_size;
const int pos = pos_w;
std::vector<int32_t> rel_pos_indices_local(window * window);
std::vector<int32_t> rel_pos_indices_global(pos * pos);
for (int q = 0; q < window; q++) {
for (int k = 0; k < window; k++) {
rel_pos_indices_local[q * window + k] = q - k + window - 1;
}
}
for (int q = 0; q < pos; q++) {
for (int k = 0; k < pos; k++) {
rel_pos_indices_global[q * pos + k] = q - k + pos - 1;
}
}
set_input_i32("rel_pos_indices_local", rel_pos_indices_local);
set_input_i32("rel_pos_indices_global", rel_pos_indices_global);
if (ctx->proj_type() == PROJECTOR_TYPE_DEEPSEEKOCR2) {
// qwen2 encoder attention mask
// num_image_tokens = num_patches / 16
// 256 for 1024 global view
// 144 for 768 tile views
const int num_image_tokens = num_patches / 16;
const int seq_len = num_image_tokens * 2;
std::vector qwen2_mask(static_cast<size_t>(seq_len) * seq_len, 0.0f);
// attention mask layout
// +--------------+---------------+
// | all 0 | all -inf |
// +--------------+---------------+
// | all 0 | lower tri 0 |
// +--------------+---------------+
for (int i = 0; i < seq_len; i++) {
for (int j = 0; j < seq_len; j++) {
const bool zero = i < num_image_tokens ?
j < num_image_tokens :
j < num_image_tokens || j <= i;
qwen2_mask[static_cast<size_t>(i) * seq_len + j] = zero ? 0.0f : -1e9f;
}
}
set_input_f32("qwen2_attn_mask", qwen2_mask);
}
} break;
case PROJECTOR_TYPE_GEMMA3:
case PROJECTOR_TYPE_GEMMA3NV:
case PROJECTOR_TYPE_IDEFICS3:
case PROJECTOR_TYPE_INTERNVL:
case PROJECTOR_TYPE_NEMOTRON_V2_VL:
case PROJECTOR_TYPE_QWEN2A:
case PROJECTOR_TYPE_QWEN3A:
case PROJECTOR_TYPE_GLMA:
case PROJECTOR_TYPE_ULTRAVOX:
case PROJECTOR_TYPE_LFM2:
case PROJECTOR_TYPE_VOXTRAL:
case PROJECTOR_TYPE_MERALION:
case PROJECTOR_TYPE_MUSIC_FLAMINGO:
case PROJECTOR_TYPE_JANUS_PRO:
case PROJECTOR_TYPE_PHI4:
case PROJECTOR_TYPE_COGVLM:
case PROJECTOR_TYPE_YASA2:
case PROJECTOR_TYPE_GEMMA4UA:
{
// do nothing
} break;
case PROJECTOR_TYPE_HUNYUANVL:
{
// Compute the HunyuanVL 2D position embedding on CPU (with the
// custom sf=(target+0.1)/n_grid bilinear sampling that the
// reference implementation uses) and upload it to the graph
// input declared in clip_graph_hunyuanvl::build().
GGML_ASSERT(model.position_embeddings != nullptr);
ggml_tensor * src_t = model.position_embeddings;
const int64_t n_embd = src_t->ne[0];
const int64_t n_pos = src_t->ne[1]; // = n_grid * n_grid
const int n_grid = (int)std::lround(std::sqrt((double)n_pos));
GGML_ASSERT((int64_t)n_grid * n_grid == n_pos);
const int out_w = pos_w; // pw
const int out_h = pos_h; // ph
// Pull weight to host.
std::vector<float> src(n_embd * n_pos);
ggml_backend_tensor_get(src_t, src.data(), 0, ggml_nbytes(src_t));
// Output layout matches ggml_new_tensor_2d(F32, n_embd, out_h*out_w):
// ne[0] = n_embd (fastest), ne[1] = out_h*out_w
// dst[(y*out_w + x) * n_embd + c]
std::vector<float> dst((size_t)n_embd * out_h * out_w);
const float sx = (float)(out_w + 0.1f) / (float)n_grid;
const float sy = (float)(out_h + 0.1f) / (float)n_grid;
for (int y = 0; y < out_h; ++y) {
// Match ggml_compute_forward_upscale_f32 pixel-center
// convention (align_corners=False): src_y = (y+0.5)/sy - 0.5.
const float fy = ((float)y + 0.5f) / sy - 0.5f;
int y0 = (int)std::floor(fy);
int y1 = y0 + 1;
y0 = std::clamp(y0, 0, n_grid - 1);
y1 = std::clamp(y1, 0, n_grid - 1);
float wy1 = std::clamp(fy - (float)y0, 0.0f, 1.0f);
const float wy0 = 1.0f - wy1;
for (int x = 0; x < out_w; ++x) {
const float fx = ((float)x + 0.5f) / sx - 0.5f;
int x0 = (int)std::floor(fx);
int x1 = x0 + 1;
x0 = std::clamp(x0, 0, n_grid - 1);
x1 = std::clamp(x1, 0, n_grid - 1);
float wx1 = std::clamp(fx - (float)x0, 0.0f, 1.0f);
const float wx0 = 1.0f - wx1;
const float w00 = wy0 * wx0;
const float w01 = wy0 * wx1;
const float w10 = wy1 * wx0;
const float w11 = wy1 * wx1;
const float * s00 = &src[((size_t)y0 * n_grid + x0) * n_embd];
const float * s01 = &src[((size_t)y0 * n_grid + x1) * n_embd];
const float * s10 = &src[((size_t)y1 * n_grid + x0) * n_embd];
const float * s11 = &src[((size_t)y1 * n_grid + x1) * n_embd];
float * d = &dst[((size_t)y * out_w + x) * n_embd];
for (int c = 0; c < n_embd; ++c) {
d[c] = w00 * s00[c] + w01 * s01[c] + w10 * s10[c] + w11 * s11[c];
}
}
}
set_input_f32("hunyuanvl_pos_embd", dst);
} break;
case PROJECTOR_TYPE_LLAMA4:
{
// set the 2D positions
int n_patches_per_col = image_size_width / patch_size;
std::vector<int> pos_data(num_patches + 1, 0); // +1 for the [CLS] token
// last pos is always kept 0, it's for CLS
// dimension H
for (int i = 0; i < num_patches; i++) {
pos_data[i] = (i / n_patches_per_col) + 1;
}
set_input_i32("pos_h", pos_data);
// dimension W
for (int i = 0; i < num_patches; i++) {
pos_data[i] = (i % n_patches_per_col) + 1;
}
set_input_i32("pos_w", pos_data);
} break;
case PROJECTOR_TYPE_GEMMA4A:
{
GGML_ASSERT(imgs.entries.size() == 1);
const auto & img0 = imgs.entries.front();
// Compute n_pos matching SSCP output: two stride-2 convs
int n_pos = img0.nx();
for (int i = 0; i < 2; i++) { n_pos = (n_pos - 1) / 2 + 1; }
// Chunked local attention: blocked causal mask and RPE
const int chunk_size = 12;
const int max_past = 12;
const int context_size = chunk_size + max_past;
const int num_blocks = (n_pos + chunk_size - 1) / chunk_size;
// Blocked causal attention mask: [context_size, chunk_size, num_blocks]
{
std::vector<float> mask(context_size * chunk_size * num_blocks, -1e9f);
for (int b = 0; b < num_blocks; b++) {
for (int q = 0; q < chunk_size; q++) {
int gq = b * chunk_size + q;
for (int k = 0; k < context_size; k++) {
int gk = b * chunk_size - max_past + k;
if (gq < n_pos && gk >= 0 && gk < n_pos && gk <= gq && (gq - gk) < max_past) {
mask[k + q * context_size + b * context_size * chunk_size] = 0.0f;
}
}
}
}
set_input_f32("kq_mask", mask);
}
// Sinusoidal RPE: 13 positions [12, 11, ..., 0]
{
const int n_embd = ctx->model.hparams.n_embd;
const int num_timescales = n_embd / 2;
const float log_timescale_increment = logf(10000.0f) / std::max(num_timescales - 1, 1);
const int rpe_len = max_past + 1;
std::vector<float> pos_emb(n_embd * rpe_len, 0.0f);
for (int p = 0; p < rpe_len; p++) {
float position = (float)(max_past - p);
for (int i = 0; i < num_timescales; i++) {
float inv_ts = expf(-(float)i * log_timescale_increment);
float scaled = position * inv_ts;
pos_emb[p * n_embd + i] = sinf(scaled);
pos_emb[p * n_embd + i + num_timescales] = cosf(scaled);
}
}
set_input_f32("pos_emb", pos_emb);
}
} break;
case PROJECTOR_TYPE_LFM2A:
{
GGML_ASSERT(imgs.entries.size() == 1);
const auto n_frames = clip_n_output_tokens(ctx, &imgs.entries.front());
auto d_model = 512;
auto seq_len = n_frames * 2 - 1;
std::vector<float> pos_emb(d_model*seq_len);
std::vector<double> inv_freq(d_model / 2);
for (size_t i = 0; i < inv_freq.size(); ++i) {
inv_freq[i] = std::exp(-(std::log(10000.0) / (float)d_model) * (2.0f * (float)(i)));
}
for (int64_t pos = 0; pos < seq_len; ++pos) {
for (size_t i = 0; i < inv_freq.size(); ++i) {
const float ang = (n_frames - pos - 1) * inv_freq[i];
pos_emb[pos*d_model + 2*i + 0] = sinf(ang); // even
pos_emb[pos*d_model + 2*i + 1] = cosf(ang); // odd
}
}
set_input_f32("pos_emb", pos_emb);
} break;
case PROJECTOR_TYPE_GRANITE_SPEECH:
{
const int context_size = ctx->model.hparams.audio_chunk_size;
const int max_pos_emb = ctx->model.hparams.audio_max_pos_emb;
std::vector<int32_t> dists(context_size * context_size);
for (int i = 0; i < context_size; i++) {
for (int j = 0; j < context_size; j++) {
int d = i - j;
if (d < -context_size) d = -context_size;
if (d > context_size) d = context_size;
dists[i * context_size + j] = d + max_pos_emb;
}
}
set_input_i32("attn_dists", dists);
const int n_frames = image_size_width;
const int remainder = n_frames % context_size;
if (remainder > 0) {
const int num_blocks = (n_frames + context_size - 1) / context_size;
std::vector<float> mask(context_size * context_size * num_blocks, 0.0f);
const float neg_inf = -INFINITY;
const int last_block_offset = (num_blocks - 1) * context_size * context_size;
for (int q = 0; q < context_size; q++) {
for (int k = 0; k < context_size; k++) {
if (q >= remainder || k >= remainder) {
mask[last_block_offset + q * context_size + k] = neg_inf;
}
}
}
set_input_f32("attn_mask", mask);
}
} break;
case PROJECTOR_TYPE_GRANITE4_VISION:
{
// Granite Vision 4.1 uses precomputed permutation index
// tensors to express the _win / _unwin / spatial sampling
// reshapes as ggml_get_rows gathers. The names are set
// by g4v_gather() in models/granite4-vision.cpp.
const int patch_size = model.hparams.patch_size;
const int image_side = imgs.entries.front().nx() / patch_size;
const int window_side = hparams.downsample_window_side;
const int query_side = hparams.downsample_query_side;
const int n = image_side / window_side;
const int new_side = n * query_side;
// Builds the raster→window permutation indices for a
// (side, side) grid split into (n × n) windows of (win × win)
// tokens each. dst[w * win*win + p] = source raster index.
auto make_win_idx = [](int side, int win) {
const int nn = side / win;
std::vector<int32_t> idx(static_cast<size_t>(side) * side);
for (int wy = 0; wy < nn; ++wy) {
for (int wx = 0; wx < nn; ++wx) {
for (int iy = 0; iy < win; ++iy) {
for (int ix = 0; ix < win; ++ix) {
const int w = wy * nn + wx;
const int p = iy * win + ix;
const int y = wy * win + iy;
const int x = wx * win + ix;
idx[static_cast<size_t>(w) * (win*win) + p] = y * side + x;
}
}
}
}
return idx;
};
auto make_unwin_idx = [&](int side, int win) {
const std::vector<int32_t> fwd = make_win_idx(side, win);
std::vector<int32_t> inv(fwd.size());
for (size_t i = 0; i < fwd.size(); ++i) {
inv[fwd[i]] = static_cast<int32_t>(i);
}
return inv;
};
auto make_spatial_idx = [](int side, int offset) {
const int off_y = (offset >> 1) & 1;
const int off_x = offset & 1;
const int new_s = side / 2;
std::vector<int32_t> idx(static_cast<size_t>(new_s) * new_s);
for (int y = 0; y < new_s; ++y) {
for (int x = 0; x < new_s; ++x) {
idx[y * new_s + x] = (y * 2 + off_y) * side + (x * 2 + off_x);
}
}
return idx;
};
auto upload = [&](const std::string & name, const std::vector<int32_t> & idx) {
ggml_tensor * t = ggml_graph_get_tensor(gf, name.c_str());
GGML_ASSERT(t);
ggml_backend_tensor_set(t, idx.data(), 0, idx.size() * sizeof(int32_t));
};
// Stage 1b only uses block 0's permutations; future stages
// will upload all blocks.
for (size_t bid = 0; bid < hparams.vision_feature_layer.size(); ++bid) {
const std::string prefix = "g4v_blk" + std::to_string(bid) + "_";
upload(prefix + "win_idx", make_win_idx(image_side, window_side));
upload(prefix + "qwin_idx", make_win_idx(new_side, query_side));
upload(prefix + "unwin_idx", make_unwin_idx(new_side, query_side));
const auto spatial_offset = hparams.proj_spatial_offsets[bid];
if (spatial_offset >= 0) {
upload(prefix + "spatial_idx", make_spatial_idx(image_side,spatial_offset));
}
}
} break;
default:
GGML_ABORT("Unknown projector type");
}
// ggml_backend_cpu_set_n_threads(ctx->backend_cpu, n_threads);
ggml_backend_dev_t dev = ggml_backend_get_device(ctx->backend_cpu);
ggml_backend_reg_t reg = dev ? ggml_backend_dev_backend_reg(dev) : nullptr;
if (reg) {
auto ggml_backend_set_n_threads_fn = (ggml_backend_set_n_threads_t) ggml_backend_reg_get_proc_address(reg, "ggml_backend_set_n_threads");
if (ggml_backend_set_n_threads_fn) {
ggml_backend_set_n_threads_fn(ctx->backend_cpu, n_threads);
}
}
auto status = ggml_backend_sched_graph_compute(ctx->sched.get(), gf);
if (status != GGML_STATUS_SUCCESS) {
LOG_ERR("%s: ggml_backend_sched_graph_compute failed with error %d\n", __func__, status);
return false;
}
// the last node is the embedding tensor
ggml_tensor * embeddings = ggml_graph_node(gf, -1);
// sanity check (assuming that all images in batch have the same number of tokens, so we only check the first one)
const int n_tokens_out = embeddings->ne[1];
const int expected_n_tokens_out = clip_n_output_tokens(ctx, &imgs.entries[0]);
if (n_tokens_out != expected_n_tokens_out) {
LOG_ERR("%s: expected output %d tokens, got %d\n", __func__, expected_n_tokens_out, n_tokens_out);
GGML_ABORT("Invalid number of output tokens");
}
LOG_DBG("%s: output embedding shape [%d, %d, %d]\n", __func__,
(int)embeddings->ne[0], (int)embeddings->ne[1], (int)embeddings->ne[2]);
// copy output to user buffer if provided
// if output is empty, skip the copy
if (!out_batch_embd.empty()) {
if (out_batch_embd.size() != (size_t)ggml_nelements(embeddings)) {
LOG_ERR("%s: output buffer has %zu elements but expected %zu\n", __func__, out_batch_embd.size(), (size_t)ggml_nelements(embeddings));
GGML_ABORT("Output buffer size mismatch");
}
ggml_backend_tensor_get(embeddings, out_batch_embd.data(), 0, ggml_nbytes(embeddings));
} else {
LOG_WRN("%s: output buffer is empty, skipping copy\n", __func__);
}
// Debug: dump final embeddings if MTMD_DEBUG_EMBEDDINGS is set
if (ctx->debug_output_embeddings) {
const int64_t n_embd = embeddings->ne[0];
const int64_t n_tokens = embeddings->ne[1];
std::vector<float> emb_data(ggml_nelements(embeddings));
ggml_backend_tensor_get(embeddings, emb_data.data(), 0, ggml_nbytes(embeddings));
LOG_INF("\n=== MTMD_DEBUG_EMBEDDINGS ===\n");
LOG_INF("Shape: [%lld, %lld]\n", (long long)n_embd, (long long)n_tokens);
// Print first few values of first token
LOG_INF("Token 0 (first 16 values): ");
for (int i = 0; i < std::min((int64_t)16, n_embd); i++) {
LOG_INF("%.6f ", emb_data[i]);
}
LOG_INF("\n");
// Print last few values of first token
if (n_embd > 16) {
LOG_INF("Token 0 (last 16 values): ");
for (int64_t i = n_embd - 16; i < n_embd; i++) {
LOG_INF("%.6f ", emb_data[i]);
}
LOG_INF("\n");
}
// Compute and print statistics
float sum = 0.0f, sum_sq = 0.0f, min_val = emb_data[0], max_val = emb_data[0];
for (size_t i = 0; i < emb_data.size(); i++) {
sum += emb_data[i];
sum_sq += emb_data[i] * emb_data[i];
min_val = std::min(min_val, emb_data[i]);
max_val = std::max(max_val, emb_data[i]);
}
float mean = sum / emb_data.size();
float variance = (sum_sq / emb_data.size()) - (mean * mean);
LOG_INF("Stats: mean=%.6f, std=%.6f, min=%.6f, max=%.6f, sum=%.6f\n",
mean, sqrtf(variance), min_val, max_val, sum);
LOG_INF("=== END MTMD_DEBUG_EMBEDDINGS ===\n\n");
}
return true;
}
int clip_n_mmproj_embd(const struct clip_ctx * ctx) {
switch (ctx->model.proj_type) {
case PROJECTOR_TYPE_LDP:
return ctx->model.mm_model_block_1_block_2_1_b->ne[0];
case PROJECTOR_TYPE_LDPV2:
return ctx->model.mm_model_peg_0_b->ne[0];
case PROJECTOR_TYPE_MLP:
case PROJECTOR_TYPE_PHI4:
case PROJECTOR_TYPE_PIXTRAL:
case PROJECTOR_TYPE_LIGHTONOCR:
case PROJECTOR_TYPE_DOTS_OCR:
return ctx->model.mm_2_w->ne[1];
case PROJECTOR_TYPE_MLP_NORM:
return ctx->model.mm_3_b->ne[0];
case PROJECTOR_TYPE_MINICPMV:
return ctx->model.mm_model_proj->ne[0];
case PROJECTOR_TYPE_MINICPMV4_6:
return ctx->model.mm_ffn_down_w->ne[1];
case PROJECTOR_TYPE_GLM_EDGE:
return ctx->model.mm_model_mlp_3_w->ne[1];
case PROJECTOR_TYPE_QWEN2VL:
case PROJECTOR_TYPE_QWEN25VL:
case PROJECTOR_TYPE_EXAONE4_5:
case PROJECTOR_TYPE_JANUS_PRO:
case PROJECTOR_TYPE_YOUTUVL:
return ctx->model.mm_1_b->ne[0];
case PROJECTOR_TYPE_QWEN3VL:
// main path + deepstack paths
return ctx->model.mm_1_b->ne[0] * (1 + ctx->model.n_deepstack_layers);
case PROJECTOR_TYPE_MIMOVL:
return ctx->model.mm_1_w->ne[1];
case PROJECTOR_TYPE_STEP3VL:
return ctx->model.mm_model_proj->ne[1];
case PROJECTOR_TYPE_GEMMA3:
case PROJECTOR_TYPE_GEMMA3NV:
return ctx->model.mm_input_proj_w->ne[0];
case PROJECTOR_TYPE_GEMMA4V:
case PROJECTOR_TYPE_GEMMA4UV:
case PROJECTOR_TYPE_GEMMA4A:
case PROJECTOR_TYPE_GEMMA4UA:
return ctx->model.mm_input_proj_w->ne[1];
case PROJECTOR_TYPE_IDEFICS3:
return ctx->model.mm_fc_w->ne[1];
case PROJECTOR_TYPE_ULTRAVOX:
case PROJECTOR_TYPE_VOXTRAL:
case PROJECTOR_TYPE_MUSIC_FLAMINGO:
return ctx->model.mm_2_w->ne[1];
case PROJECTOR_TYPE_MERALION:
return ctx->model.mm_3_w->ne[1]; // out_proj output dim
case PROJECTOR_TYPE_INTERNVL:
case PROJECTOR_TYPE_NEMOTRON_V2_VL:
return ctx->model.mm_3_w->ne[1];
case PROJECTOR_TYPE_LLAMA4:
return ctx->model.mm_model_proj->ne[1];
case PROJECTOR_TYPE_QWEN2A:
return ctx->model.mm_fc_w->ne[1];
case PROJECTOR_TYPE_QWEN3A:
return ctx->model.mm_2_w->ne[1];
case PROJECTOR_TYPE_GLMA:
case PROJECTOR_TYPE_LFM2:
case PROJECTOR_TYPE_KIMIVL:
case PROJECTOR_TYPE_PADDLEOCR:
case PROJECTOR_TYPE_KIMIK25:
case PROJECTOR_TYPE_YASA2:
return ctx->model.mm_2_w->ne[1];
case PROJECTOR_TYPE_HUNYUANVL:
return ctx->model.mm_model_proj->ne[1];
case PROJECTOR_TYPE_COGVLM:
return ctx->model.mm_4h_to_h_w->ne[1];
case PROJECTOR_TYPE_DEEPSEEKOCR:
case PROJECTOR_TYPE_DEEPSEEKOCR2:
return ctx->model.mm_fc_w->ne[1];
case PROJECTOR_TYPE_LFM2A:
return ctx->model.position_embeddings->ne[0];
case PROJECTOR_TYPE_GRANITE_SPEECH:
return ctx->model.qf_proj_blocks[0].qf_proj_linear_w->ne[1];
case PROJECTOR_TYPE_GRANITE4_VISION:
return ctx->model.qf_proj_blocks.size() * ctx->model.hparams.projection_dim;
case PROJECTOR_TYPE_GLM4V:
return ctx->model.mm_ffn_down_w->ne[1];
default:
GGML_ABORT("Unknown projector type");
}
}
bool clip_is_llava(const struct clip_ctx * ctx) {
return ctx->model.hparams.has_llava_projector;
}
bool clip_has_vision_encoder(const struct clip_ctx * ctx) {
return ctx->model.modality == CLIP_MODALITY_VISION;
}
bool clip_has_audio_encoder(const struct clip_ctx * ctx) {
return ctx->model.modality == CLIP_MODALITY_AUDIO;
}
bool clip_support_batch(const struct clip_ctx * ctx) {
return ctx->support_batch;
}
// TODO @ngxson : this is no longer correct with mtmd_batch API
// this was only meant to be used by qwen-vl-based models, to fuse 2 input images into one (qwen-vl video support)
// this logic should be refactored in near future to distinctly handle "merge frames" and "batching"
int clip_model_n_temporal_merge(const struct clip_ctx * ctx) {
switch (ctx->proj_type()) {
case PROJECTOR_TYPE_QWEN2VL:
case PROJECTOR_TYPE_QWEN25VL:
case PROJECTOR_TYPE_QWEN3VL:
return 2;
default:
return 1;
}
}
//
// API used internally with mtmd
//
projector_type clip_get_projector_type(const struct clip_ctx * ctx) {
return ctx->proj_type();
}
const clip_hparams * clip_get_hparams(const struct clip_ctx * ctx) {
return &ctx->model.hparams;
}
std::map<ggml_backend_dev_t, size_t> clip_get_mem_usage(const struct clip_ctx * ctx) {
std::map<ggml_backend_dev_t, size_t> result = ctx->mem_usage;
for (auto & [dev, size] : ctx->mem_compute) {
result[dev] += size;
}
return result;
}
//
// API for debugging
//
void clip_set_debug_output_embeddings(clip_ctx * ctx, bool enable) {
ctx->debug_output_embeddings = enable;
}