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code_x_glue_cc_defect_detection

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static int decode_cell(Indeo3DecodeContext *ctx, AVCodecContext *avctx, Plane *plane, Cell *cell, const uint8_t *data_ptr, const uint8_t *last_ptr) { int x, mv_x, mv_y, mode, vq_index, prim_indx, second_indx; int zoom_fac; int offset, error = 0, swap_quads[2]; uint8_t code, *block, *ref_block = 0; const vqEntry *delta[2]; const uint8_t *data_start = data_ptr; /* get coding mode and VQ table index from the VQ descriptor byte */ code = *data_ptr++; mode = code >> 4; vq_index = code & 0xF; /* setup output and reference pointers */ offset = (cell->ypos << 2) * plane->pitch + (cell->xpos << 2); block = plane->pixels[ctx->buf_sel] + offset; if (!cell->mv_ptr) { /* use previous line as reference for INTRA cells */ ref_block = block - plane->pitch; } else if (mode >= 10) { /* for mode 10 and 11 INTER first copy the predicted cell into the current one */ /* so we don't need to do data copying for each RLE code later */ copy_cell(ctx, plane, cell); } else { /* set the pointer to the reference pixels for modes 0-4 INTER */ mv_y = cell->mv_ptr[0]; mv_x = cell->mv_ptr[1]; offset += mv_y * plane->pitch + mv_x; ref_block = plane->pixels[ctx->buf_sel ^ 1] + offset; /* select VQ tables as follows: */ /* modes 0 and 3 use only the primary table for all lines in a block */ /* while modes 1 and 4 switch between primary and secondary tables on alternate lines */ if (mode == 1 || mode == 4) { code = ctx->alt_quant[vq_index]; prim_indx = (code >> 4) + ctx->cb_offset; second_indx = (code & 0xF) + ctx->cb_offset; } else { vq_index += ctx->cb_offset; prim_indx = second_indx = vq_index; if (prim_indx >= 24 || second_indx >= 24) { av_log(avctx, AV_LOG_ERROR, "Invalid VQ table indexes! Primary: %d, secondary: %d!\n", prim_indx, second_indx); delta[0] = &vq_tab[second_indx]; delta[1] = &vq_tab[prim_indx]; swap_quads[0] = second_indx >= 16; swap_quads[1] = prim_indx >= 16; /* requantize the prediction if VQ index of this cell differs from VQ index */ /* of the predicted cell in order to avoid overflows. */ if (vq_index >= 8 && ref_block) { for (x = 0; x < cell->width << 2; x++) ref_block[x] = requant_tab[vq_index & 7][ref_block[x]]; error = IV3_NOERR; switch (mode) { case 0: /*------------------ MODES 0 & 1 (4x4 block processing) --------------------*/ case 1: case 3: /*------------------ MODES 3 & 4 (4x8 block processing) --------------------*/ case 4: if (mode >= 3 && cell->mv_ptr) { av_log(avctx, AV_LOG_ERROR, "Attempt to apply Mode 3/4 to an INTER cell!\n"); zoom_fac = mode >= 3; error = decode_cell_data(cell, block, ref_block, plane->pitch, 0, zoom_fac, mode, delta, swap_quads, &data_ptr, last_ptr); break; case 10: /*-------------------- MODE 10 (8x8 block processing) ---------------------*/ case 11: /*----------------- MODE 11 (4x8 INTER block processing) ------------------*/ if (mode == 10 && !cell->mv_ptr) { /* MODE 10 INTRA processing */ error = decode_cell_data(cell, block, ref_block, plane->pitch, 1, 1, mode, delta, swap_quads, &data_ptr, last_ptr); } else { /* mode 10 and 11 INTER processing */ if (mode == 11 && !cell->mv_ptr) { av_log(avctx, AV_LOG_ERROR, "Attempt to use Mode 11 for an INTRA cell!\n"); zoom_fac = mode == 10; error = decode_cell_data(cell, block, ref_block, plane->pitch, zoom_fac, 1, mode, delta, swap_quads, &data_ptr, last_ptr); break; default: av_log(avctx, AV_LOG_ERROR, "Unsupported coding mode: %d\n", mode); }//switch mode switch (error) { case IV3_BAD_RLE: av_log(avctx, AV_LOG_ERROR, "Mode %d: RLE code %X is not allowed at the current line\n", mode, data_ptr[-1]); case IV3_BAD_DATA: av_log(avctx, AV_LOG_ERROR, "Mode %d: invalid VQ data\n", mode); case IV3_BAD_COUNTER: av_log(avctx, AV_LOG_ERROR, "Mode %d: RLE-FB invalid counter: %d\n", mode, code); case IV3_UNSUPPORTED: av_log(avctx, AV_LOG_ERROR, "Mode %d: unsupported RLE code: %X\n", mode, data_ptr[-1]); case IV3_OUT_OF_DATA: av_log(avctx, AV_LOG_ERROR, "Mode %d: attempt to read past end of buffer\n", mode); return data_ptr - data_start; /* report number of bytes consumed from the input buffer */

FFmpeg

56ffa3fefb22605ac6507efa046ebddc38301521

void ff_riff_write_info_tag(AVIOContext *pb, const char *tag, const char *str) { int len = strlen(str); if (len > 0) { len++; ffio_wfourcc(pb, tag); avio_wl32(pb, len); avio_put_str(pb, str); if (len & 1) avio_w8(pb, 0); } }

FFmpeg

c3671e1d5760d79c083e7565d951f4628c06cf41

static int mjpegb_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt) { const uint8_t *buf = avpkt->data; int buf_size = avpkt->size; MJpegDecodeContext *s = avctx->priv_data; const uint8_t *buf_end, *buf_ptr; GetBitContext hgb; /* for the header */ uint32_t dqt_offs, dht_offs, sof_offs, sos_offs, second_field_offs; uint32_t field_size, sod_offs; int ret; buf_ptr = buf; buf_end = buf + buf_size; s->got_picture = 0; read_header: /* reset on every SOI */ s->restart_interval = 0; s->restart_count = 0; s->mjpb_skiptosod = 0; if (buf_end - buf_ptr >= 1 << 28) return AVERROR_INVALIDDATA; init_get_bits(&hgb, buf_ptr, /*buf_size*/(buf_end - buf_ptr)*8); skip_bits(&hgb, 32); /* reserved zeros */ if (get_bits_long(&hgb, 32) != MKBETAG('m','j','p','g')) { av_log(avctx, AV_LOG_WARNING, "not mjpeg-b (bad fourcc)\n"); return AVERROR_INVALIDDATA; } field_size = get_bits_long(&hgb, 32); /* field size */ av_log(avctx, AV_LOG_DEBUG, "field size: 0x%x\n", field_size); skip_bits(&hgb, 32); /* padded field size */ second_field_offs = read_offs(avctx, &hgb, buf_end - buf_ptr, "second_field_offs is %d and size is %d\n"); av_log(avctx, AV_LOG_DEBUG, "second field offs: 0x%x\n", second_field_offs); dqt_offs = read_offs(avctx, &hgb, buf_end - buf_ptr, "dqt is %d and size is %d\n"); av_log(avctx, AV_LOG_DEBUG, "dqt offs: 0x%x\n", dqt_offs); if (dqt_offs) { init_get_bits(&s->gb, buf_ptr+dqt_offs, (buf_end - (buf_ptr+dqt_offs))*8); s->start_code = DQT; if (ff_mjpeg_decode_dqt(s) < 0 && (avctx->err_recognition & AV_EF_EXPLODE)) return AVERROR_INVALIDDATA; } dht_offs = read_offs(avctx, &hgb, buf_end - buf_ptr, "dht is %d and size is %d\n"); av_log(avctx, AV_LOG_DEBUG, "dht offs: 0x%x\n", dht_offs); if (dht_offs) { init_get_bits(&s->gb, buf_ptr+dht_offs, (buf_end - (buf_ptr+dht_offs))*8); s->start_code = DHT; ff_mjpeg_decode_dht(s); } sof_offs = read_offs(avctx, &hgb, buf_end - buf_ptr, "sof is %d and size is %d\n"); av_log(avctx, AV_LOG_DEBUG, "sof offs: 0x%x\n", sof_offs); if (sof_offs) { init_get_bits(&s->gb, buf_ptr+sof_offs, (buf_end - (buf_ptr+sof_offs))*8); s->start_code = SOF0; if (ff_mjpeg_decode_sof(s) < 0) return -1; } sos_offs = read_offs(avctx, &hgb, buf_end - buf_ptr, "sos is %d and size is %d\n"); av_log(avctx, AV_LOG_DEBUG, "sos offs: 0x%x\n", sos_offs); sod_offs = read_offs(avctx, &hgb, buf_end - buf_ptr, "sof is %d and size is %d\n"); av_log(avctx, AV_LOG_DEBUG, "sod offs: 0x%x\n", sod_offs); if (sos_offs) { init_get_bits(&s->gb, buf_ptr + sos_offs, 8 * FFMIN(field_size, buf_end - buf_ptr - sos_offs)); s->mjpb_skiptosod = (sod_offs - sos_offs - show_bits(&s->gb, 16)); s->start_code = SOS; if (ff_mjpeg_decode_sos(s, NULL, NULL) < 0 && (avctx->err_recognition & AV_EF_EXPLODE)) return AVERROR_INVALIDDATA; } if (s->interlaced) { s->bottom_field ^= 1; /* if not bottom field, do not output image yet */ if (s->bottom_field != s->interlace_polarity && second_field_offs) { buf_ptr = buf + second_field_offs; goto read_header; } } //XXX FIXME factorize, this looks very similar to the EOI code if(!s->got_picture) { av_log(avctx, AV_LOG_WARNING, "no picture\n"); return buf_size; } if ((ret = av_frame_ref(data, s->picture_ptr)) < 0) return ret; *got_frame = 1; if (!s->lossless && avctx->debug & FF_DEBUG_QP) { av_log(avctx, AV_LOG_DEBUG, "QP: %d\n", FFMAX3(s->qscale[0], s->qscale[1], s->qscale[2])); } return buf_size; }

FFmpeg

2884688bd51a808ccda3c0e13367619cd79e0579

void helper_wrpil(CPUSPARCState *env, target_ulong new_pil) { #if !defined(CONFIG_USER_ONLY) trace_win_helper_wrpil(env->psrpil, (uint32_t)new_pil); env->psrpil = new_pil; if (cpu_interrupts_enabled(env)) { cpu_check_irqs(env); } #endif }

qemu

5ee5993001cf32addb86a92e2ae8cb090fbc1462

const char *qdict_get_try_str(const QDict *qdict, const char *key) { QObject *obj; obj = qdict_get(qdict, key); if (!obj || qobject_type(obj) != QTYPE_QSTRING) return NULL; return qstring_get_str(qobject_to_qstring(obj)); }

qemu

7f0278435df1fa845b3bd9556942f89296d4246b

static void tricore_testboard_init(MachineState *machine, int board_id) { TriCoreCPU *cpu; CPUTriCoreState *env; MemoryRegion *sysmem = get_system_memory(); MemoryRegion *ext_cram = g_new(MemoryRegion, 1); MemoryRegion *ext_dram = g_new(MemoryRegion, 1); MemoryRegion *int_cram = g_new(MemoryRegion, 1); MemoryRegion *int_dram = g_new(MemoryRegion, 1); MemoryRegion *pcp_data = g_new(MemoryRegion, 1); MemoryRegion *pcp_text = g_new(MemoryRegion, 1); if (!machine->cpu_model) { machine->cpu_model = "tc1796"; } cpu = cpu_tricore_init(machine->cpu_model); if (!cpu) { error_report("Unable to find CPU definition"); exit(1); } env = &cpu->env; memory_region_init_ram(ext_cram, NULL, "powerlink_ext_c.ram", 2*1024*1024, &error_abort); vmstate_register_ram_global(ext_cram); memory_region_init_ram(ext_dram, NULL, "powerlink_ext_d.ram", 4*1024*1024, &error_abort); vmstate_register_ram_global(ext_dram); memory_region_init_ram(int_cram, NULL, "powerlink_int_c.ram", 48*1024, &error_abort); vmstate_register_ram_global(int_cram); memory_region_init_ram(int_dram, NULL, "powerlink_int_d.ram", 48*1024, &error_abort); vmstate_register_ram_global(int_dram); memory_region_init_ram(pcp_data, NULL, "powerlink_pcp_data.ram", 16*1024, &error_abort); vmstate_register_ram_global(pcp_data); memory_region_init_ram(pcp_text, NULL, "powerlink_pcp_text.ram", 32*1024, &error_abort); vmstate_register_ram_global(pcp_text); memory_region_add_subregion(sysmem, 0x80000000, ext_cram); memory_region_add_subregion(sysmem, 0xa1000000, ext_dram); memory_region_add_subregion(sysmem, 0xd4000000, int_cram); memory_region_add_subregion(sysmem, 0xd0000000, int_dram); memory_region_add_subregion(sysmem, 0xf0050000, pcp_data); memory_region_add_subregion(sysmem, 0xf0060000, pcp_text); tricoretb_binfo.ram_size = machine->ram_size; tricoretb_binfo.kernel_filename = machine->kernel_filename; if (machine->kernel_filename) { tricore_load_kernel(env); } }

qemu

f8ed85ac992c48814d916d5df4d44f9a971c5de4

static void ahci_write_fis_sdb(AHCIState *s, int port, uint32_t finished) { AHCIPortRegs *pr = &s->dev[port].port_regs; IDEState *ide_state; uint8_t *sdb_fis; if (!s->dev[port].res_fis || !(pr->cmd & PORT_CMD_FIS_RX)) { return; } sdb_fis = &s->dev[port].res_fis[RES_FIS_SDBFIS]; ide_state = &s->dev[port].port.ifs[0]; /* clear memory */ *(uint32_t*)sdb_fis = 0; /* write values */ sdb_fis[0] = ide_state->error; sdb_fis[2] = ide_state->status & 0x77; s->dev[port].finished |= finished; *(uint32_t*)(sdb_fis + 4) = cpu_to_le32(s->dev[port].finished); ahci_trigger_irq(s, &s->dev[port], PORT_IRQ_SDB_FIS); }

qemu

fac7aa7fc2ebc26803b0a7b44b010f47ce3e1dd8

int v9fs_set_xattr(FsContext *ctx, const char *path, const char *name, void *value, size_t size, int flags) { XattrOperations *xops = get_xattr_operations(ctx->xops, name); if (xops) { return xops->setxattr(ctx, path, name, value, size, flags); } errno = -EOPNOTSUPP; return -1; }

qemu

8af00205445eb901f17ca5b632d976065187538e

void kvm_irqchip_add_irq_route(KVMState *s, int irq, int irqchip, int pin) { struct kvm_irq_routing_entry e; assert(pin < s->gsi_count); e.gsi = irq; e.type = KVM_IRQ_ROUTING_IRQCHIP; e.flags = 0; e.u.irqchip.irqchip = irqchip; e.u.irqchip.pin = pin; kvm_add_routing_entry(s, &e); }

qemu

0fbc20740342713f282b118b4a446c4c43df3f4a

static inline void gen_op_evsrwu(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2) { TCGv_i32 t0; int l1, l2; l1 = gen_new_label(); l2 = gen_new_label(); t0 = tcg_temp_local_new_i32(); /* No error here: 6 bits are used */ tcg_gen_andi_i32(t0, arg2, 0x3F); tcg_gen_brcondi_i32(TCG_COND_GE, t0, 32, l1); tcg_gen_shr_i32(ret, arg1, t0); tcg_gen_br(l2); gen_set_label(l1); tcg_gen_movi_i32(ret, 0); gen_set_label(l2); tcg_temp_free_i32(t0); }

qemu

42a268c241183877192c376d03bd9b6d527407c7

static int hqx_decode_frame(AVCodecContext *avctx, void *data, int *got_picture_ptr, AVPacket *avpkt) { HQXContext *ctx = avctx->priv_data; uint8_t *src = avpkt->data; uint32_t info_tag; int data_start; int i, ret; if (avpkt->size < 4 + 4) { av_log(avctx, AV_LOG_ERROR, "Frame is too small %d.\n", avpkt->size); return AVERROR_INVALIDDATA; } info_tag = AV_RL32(src); if (info_tag == MKTAG('I', 'N', 'F', 'O')) { int info_offset = AV_RL32(src + 4); if (info_offset > UINT32_MAX - 8 || info_offset + 8 > avpkt->size) { av_log(avctx, AV_LOG_ERROR, "Invalid INFO header offset: 0x%08"PRIX32" is too large.\n", info_offset); return AVERROR_INVALIDDATA; } ff_canopus_parse_info_tag(avctx, src + 8, info_offset); info_offset += 8; src += info_offset; } data_start = src - avpkt->data; ctx->data_size = avpkt->size - data_start; ctx->src = src; ctx->pic = data; if (ctx->data_size < HQX_HEADER_SIZE) { av_log(avctx, AV_LOG_ERROR, "Frame too small.\n"); return AVERROR_INVALIDDATA; } if (src[0] != 'H' || src[1] != 'Q') { av_log(avctx, AV_LOG_ERROR, "Not an HQX frame.\n"); return AVERROR_INVALIDDATA; } ctx->interlaced = !(src[2] & 0x80); ctx->format = src[2] & 7; ctx->dcb = (src[3] & 3) + 8; ctx->width = AV_RB16(src + 4); ctx->height = AV_RB16(src + 6); for (i = 0; i < 17; i++) ctx->slice_off[i] = AV_RB24(src + 8 + i * 3); if (ctx->dcb == 8) { av_log(avctx, AV_LOG_ERROR, "Invalid DC precision %d.\n", ctx->dcb); return AVERROR_INVALIDDATA; } ret = av_image_check_size(ctx->width, ctx->height, 0, avctx); if (ret < 0) { av_log(avctx, AV_LOG_ERROR, "Invalid stored dimenstions %dx%d.\n", ctx->width, ctx->height); return AVERROR_INVALIDDATA; } avctx->coded_width = FFALIGN(ctx->width, 16); avctx->coded_height = FFALIGN(ctx->height, 16); avctx->width = ctx->width; avctx->height = ctx->height; avctx->bits_per_raw_sample = 10; switch (ctx->format) { case HQX_422: avctx->pix_fmt = AV_PIX_FMT_YUV422P16; ctx->decode_func = hqx_decode_422; break; case HQX_444: avctx->pix_fmt = AV_PIX_FMT_YUV444P16; ctx->decode_func = hqx_decode_444; break; case HQX_422A: avctx->pix_fmt = AV_PIX_FMT_YUVA422P16; ctx->decode_func = hqx_decode_422a; break; case HQX_444A: avctx->pix_fmt = AV_PIX_FMT_YUVA444P16; ctx->decode_func = hqx_decode_444a; break; default: av_log(avctx, AV_LOG_ERROR, "Invalid format: %d.\n", ctx->format); return AVERROR_INVALIDDATA; } ret = ff_get_buffer(avctx, ctx->pic, 0); if (ret < 0) { av_log(avctx, AV_LOG_ERROR, "Could not allocate buffer.\n"); return ret; } avctx->execute2(avctx, decode_slice_thread, NULL, NULL, 16); ctx->pic->key_frame = 1; ctx->pic->pict_type = AV_PICTURE_TYPE_I; *got_picture_ptr = 1; return avpkt->size; }

FFmpeg

9fd2bf09dbc630484d9e88a1d27f7e8508b70a2c

START_TEST(qlist_append_test) { QInt *qi; QList *qlist; QListEntry *entry; qi = qint_from_int(42); qlist = qlist_new(); qlist_append(qlist, qi); entry = QTAILQ_FIRST(&qlist->head); fail_unless(entry != NULL); fail_unless(entry->value == QOBJECT(qi)); // destroy doesn't exist yet QDECREF(qi); g_free(entry); g_free(qlist); }

qemu

91479dd0b5bd3b087b92ddd7bc3f2c54982cfe17

static int parse_chr(DeviceState *dev, Property *prop, const char *str) { CharDriverState **ptr = qdev_get_prop_ptr(dev, prop); *ptr = qemu_chr_find(str); if (*ptr == NULL) return -ENOENT; return 0; }

qemu

2d6c1ef40f3678ab47a4d14fb5dadaa486bfcda6

static unsigned virtio_pci_get_features(void *opaque) { unsigned ret = 0; ret |= (1 << VIRTIO_F_NOTIFY_ON_EMPTY); ret |= (1 << VIRTIO_RING_F_INDIRECT_DESC); ret |= (1 << VIRTIO_F_BAD_FEATURE); return ret; }

qemu

8172539d21a03e982aa7f139ddc1607dc1422045

target_ulong HELPER(mfspr)(CPUOpenRISCState *env, target_ulong rd, target_ulong ra, uint32_t offset) { #ifndef CONFIG_USER_ONLY int spr = (ra | offset); int idx; OpenRISCCPU *cpu = openrisc_env_get_cpu(env); switch (spr) { case TO_SPR(0, 0): /* VR */ return env->vr & SPR_VR; case TO_SPR(0, 1): /* UPR */ return env->upr; /* TT, DM, IM, UP present */ case TO_SPR(0, 2): /* CPUCFGR */ return env->cpucfgr; case TO_SPR(0, 3): /* DMMUCFGR */ return env->dmmucfgr; /* 1Way, 64 entries */ case TO_SPR(0, 4): /* IMMUCFGR */ return env->immucfgr; case TO_SPR(0, 16): /* NPC */ return env->npc; case TO_SPR(0, 17): /* SR */ return env->sr; case TO_SPR(0, 18): /* PPC */ return env->ppc; case TO_SPR(0, 32): /* EPCR */ return env->epcr; case TO_SPR(0, 48): /* EEAR */ return env->eear; case TO_SPR(0, 64): /* ESR */ return env->esr; case TO_SPR(1, 512) ... TO_SPR(1, 639): /* DTLBW0MR 0-127 */ idx = spr - TO_SPR(1, 512); return env->tlb->dtlb[0][idx].mr; case TO_SPR(1, 640) ... TO_SPR(1, 767): /* DTLBW0TR 0-127 */ idx = spr - TO_SPR(1, 640); return env->tlb->dtlb[0][idx].tr; case TO_SPR(1, 768) ... TO_SPR(1, 895): /* DTLBW1MR 0-127 */ case TO_SPR(1, 896) ... TO_SPR(1, 1023): /* DTLBW1TR 0-127 */ case TO_SPR(1, 1024) ... TO_SPR(1, 1151): /* DTLBW2MR 0-127 */ case TO_SPR(1, 1152) ... TO_SPR(1, 1279): /* DTLBW2TR 0-127 */ case TO_SPR(1, 1280) ... TO_SPR(1, 1407): /* DTLBW3MR 0-127 */ case TO_SPR(1, 1408) ... TO_SPR(1, 1535): /* DTLBW3TR 0-127 */ break; case TO_SPR(2, 512) ... TO_SPR(2, 639): /* ITLBW0MR 0-127 */ idx = spr - TO_SPR(2, 512); return env->tlb->itlb[0][idx].mr; case TO_SPR(2, 640) ... TO_SPR(2, 767): /* ITLBW0TR 0-127 */ idx = spr - TO_SPR(2, 640); return env->tlb->itlb[0][idx].tr; case TO_SPR(2, 768) ... TO_SPR(2, 895): /* ITLBW1MR 0-127 */ case TO_SPR(2, 896) ... TO_SPR(2, 1023): /* ITLBW1TR 0-127 */ case TO_SPR(2, 1024) ... TO_SPR(2, 1151): /* ITLBW2MR 0-127 */ case TO_SPR(2, 1152) ... TO_SPR(2, 1279): /* ITLBW2TR 0-127 */ case TO_SPR(2, 1280) ... TO_SPR(2, 1407): /* ITLBW3MR 0-127 */ case TO_SPR(2, 1408) ... TO_SPR(2, 1535): /* ITLBW3TR 0-127 */ break; case TO_SPR(9, 0): /* PICMR */ return env->picmr; case TO_SPR(9, 2): /* PICSR */ return env->picsr; case TO_SPR(10, 0): /* TTMR */ return env->ttmr; case TO_SPR(10, 1): /* TTCR */ cpu_openrisc_count_update(cpu); return env->ttcr; default: break; } #endif /*If we later need to add tracepoints (or debug printfs) for the return value, it may be useful to structure the code like this: target_ulong ret = 0; switch() { case x: ret = y; break; case z: ret = 42; break; ... } later something like trace_spr_read(ret); return ret;*/ /* for rd is passed in, if rd unchanged, just keep it back. */ return rd; }

qemu

93147a180c10b97bf9575a87e01c9a1c93e6c9ce

ssize_t virtio_pdu_vunmarshal(V9fsPDU *pdu, size_t offset, const char *fmt, va_list ap) { V9fsState *s = pdu->s; V9fsVirtioState *v = container_of(s, V9fsVirtioState, state); VirtQueueElement *elem = &v->elems[pdu->idx]; return v9fs_iov_vunmarshal(elem->out_sg, elem->out_num, offset, 1, fmt, ap); }

qemu

51b19ebe4320f3dcd93cea71235c1219318ddfd2

void do_td (int flags) { if (!likely(!(((int64_t)T0 < (int64_t)T1 && (flags & 0x10)) || ((int64_t)T0 > (int64_t)T1 && (flags & 0x08)) || ((int64_t)T0 == (int64_t)T1 && (flags & 0x04)) || ((uint64_t)T0 < (uint64_t)T1 && (flags & 0x02)) || ((uint64_t)T0 > (uint64_t)T1 && (flags & 0x01))))) do_raise_exception_err(EXCP_PROGRAM, EXCP_TRAP); }

qemu

e1833e1f96456fd8fc17463246fe0b2050e68efb

static ssize_t block_crypto_read_func(QCryptoBlock *block, void *opaque, size_t offset, uint8_t *buf, size_t buflen, Error **errp) { BlockDriverState *bs = opaque; ssize_t ret; ret = bdrv_pread(bs->file, offset, buf, buflen); if (ret < 0) { error_setg_errno(errp, -ret, "Could not read encryption header"); return ret; } return ret; }

qemu

e4a3507e86a1ef1453d603031bca27d5ac4cff3c

vnc_display_setup_auth(VncDisplay *vd, bool password, bool sasl, bool websocket, Error **errp) { /* * We have a choice of 3 authentication options * * 1. none * 2. vnc * 3. sasl * * The channel can be run in 2 modes * * 1. clear * 2. tls * * And TLS can use 2 types of credentials * * 1. anon * 2. x509 * * We thus have 9 possible logical combinations * * 1. clear + none * 2. clear + vnc * 3. clear + sasl * 4. tls + anon + none * 5. tls + anon + vnc * 6. tls + anon + sasl * 7. tls + x509 + none * 8. tls + x509 + vnc * 9. tls + x509 + sasl * * These need to be mapped into the VNC auth schemes * in an appropriate manner. In regular VNC, all the * TLS options get mapped into VNC_AUTH_VENCRYPT * sub-auth types. * * In websockets, the https:// protocol already provides * TLS support, so there is no need to make use of the * VeNCrypt extension. Furthermore, websockets browser * clients could not use VeNCrypt even if they wanted to, * as they cannot control when the TLS handshake takes * place. Thus there is no option but to rely on https://, * meaning combinations 4->6 and 7->9 will be mapped to * VNC auth schemes in the same way as combos 1->3. * * Regardless of fact that we have a different mapping to * VNC auth mechs for plain VNC vs websockets VNC, the end * result has the same security characteristics. */ if (password) { if (vd->tlscreds) { vd->auth = VNC_AUTH_VENCRYPT; if (object_dynamic_cast(OBJECT(vd->tlscreds), TYPE_QCRYPTO_TLS_CREDS_X509)) { VNC_DEBUG("Initializing VNC server with x509 password auth\n"); vd->subauth = VNC_AUTH_VENCRYPT_X509VNC; } else if (object_dynamic_cast(OBJECT(vd->tlscreds), TYPE_QCRYPTO_TLS_CREDS_ANON)) { VNC_DEBUG("Initializing VNC server with TLS password auth\n"); vd->subauth = VNC_AUTH_VENCRYPT_TLSVNC; } else { error_setg(errp, "Unsupported TLS cred type %s", object_get_typename(OBJECT(vd->tlscreds))); return -1; } } else { VNC_DEBUG("Initializing VNC server with password auth\n"); vd->auth = VNC_AUTH_VNC; vd->subauth = VNC_AUTH_INVALID; } if (websocket) { vd->ws_auth = VNC_AUTH_VNC; } else { vd->ws_auth = VNC_AUTH_INVALID; } } else if (sasl) { if (vd->tlscreds) { vd->auth = VNC_AUTH_VENCRYPT; if (object_dynamic_cast(OBJECT(vd->tlscreds), TYPE_QCRYPTO_TLS_CREDS_X509)) { VNC_DEBUG("Initializing VNC server with x509 SASL auth\n"); vd->subauth = VNC_AUTH_VENCRYPT_X509SASL; } else if (object_dynamic_cast(OBJECT(vd->tlscreds), TYPE_QCRYPTO_TLS_CREDS_ANON)) { VNC_DEBUG("Initializing VNC server with TLS SASL auth\n"); vd->subauth = VNC_AUTH_VENCRYPT_TLSSASL; } else { error_setg(errp, "Unsupported TLS cred type %s", object_get_typename(OBJECT(vd->tlscreds))); return -1; } } else { VNC_DEBUG("Initializing VNC server with SASL auth\n"); vd->auth = VNC_AUTH_SASL; vd->subauth = VNC_AUTH_INVALID; } if (websocket) { vd->ws_auth = VNC_AUTH_SASL; } else { vd->ws_auth = VNC_AUTH_INVALID; } } else { if (vd->tlscreds) { vd->auth = VNC_AUTH_VENCRYPT; if (object_dynamic_cast(OBJECT(vd->tlscreds), TYPE_QCRYPTO_TLS_CREDS_X509)) { VNC_DEBUG("Initializing VNC server with x509 no auth\n"); vd->subauth = VNC_AUTH_VENCRYPT_X509NONE; } else if (object_dynamic_cast(OBJECT(vd->tlscreds), TYPE_QCRYPTO_TLS_CREDS_ANON)) { VNC_DEBUG("Initializing VNC server with TLS no auth\n"); vd->subauth = VNC_AUTH_VENCRYPT_TLSNONE; } else { error_setg(errp, "Unsupported TLS cred type %s", object_get_typename(OBJECT(vd->tlscreds))); return -1; } } else { VNC_DEBUG("Initializing VNC server with no auth\n"); vd->auth = VNC_AUTH_NONE; vd->subauth = VNC_AUTH_INVALID; } if (websocket) { vd->ws_auth = VNC_AUTH_NONE; } else { vd->ws_auth = VNC_AUTH_INVALID; } } return 0; }

qemu

eda24e188637e2f86db31c3edb76d457212fdcb1

static void fill_elf_note_phdr(struct elf_phdr *phdr, int sz, off_t offset) { phdr->p_type = PT_NOTE; phdr->p_offset = offset; phdr->p_vaddr = 0; phdr->p_paddr = 0; phdr->p_filesz = sz; phdr->p_memsz = 0; phdr->p_flags = 0; phdr->p_align = 0; #ifdef BSWAP_NEEDED bswap_phdr(phdr); #endif }

qemu

991f8f0c91d65cebf51fa931450e02b0d5209012

static av_cold int vaapi_encode_mjpeg_init_internal(AVCodecContext *avctx) { static const VAConfigAttrib default_config_attributes[] = { { .type = VAConfigAttribRTFormat, .value = VA_RT_FORMAT_YUV420 }, { .type = VAConfigAttribEncPackedHeaders, .value = VA_ENC_PACKED_HEADER_SEQUENCE }, }; VAAPIEncodeContext *ctx = avctx->priv_data; VAAPIEncodeMJPEGContext *priv = ctx->priv_data; int i; ctx->va_profile = VAProfileJPEGBaseline; ctx->va_entrypoint = VAEntrypointEncPicture; ctx->input_width = avctx->width; ctx->input_height = avctx->height; ctx->aligned_width = FFALIGN(ctx->input_width, 8); ctx->aligned_height = FFALIGN(ctx->input_height, 8); for (i = 0; i < FF_ARRAY_ELEMS(default_config_attributes); i++) { ctx->config_attributes[ctx->nb_config_attributes++] = default_config_attributes[i]; } priv->quality = avctx->global_quality; if (priv->quality < 1 || priv->quality > 100) { av_log(avctx, AV_LOG_ERROR, "Invalid quality value %d " "(must be 1-100).\n", priv->quality); return AVERROR(EINVAL); } vaapi_encode_mjpeg_init_tables(avctx); return 0; }

FFmpeg

80a5d05108cb218e8cd2e25c6621a3bfef0a832e

static gboolean tcp_chr_chan_close(GIOChannel *channel, GIOCondition cond, void *opaque) { CharDriverState *chr = opaque; if (cond != G_IO_HUP) { return FALSE; } /* connection closed */ tcp_chr_disconnect(chr); if (chr->fd_hup_tag) { g_source_remove(chr->fd_hup_tag); chr->fd_hup_tag = 0; } return TRUE; }

qemu

812c1057f6175ac9a9829fa2920a2b5783814193

static void rtas_ibm_configure_pe(PowerPCCPU *cpu, sPAPREnvironment *spapr, uint32_t token, uint32_t nargs, target_ulong args, uint32_t nret, target_ulong rets) { sPAPRPHBState *sphb; sPAPRPHBClass *spc; uint64_t buid; int ret; if ((nargs != 3) || (nret != 1)) { goto param_error_exit; } buid = ((uint64_t)rtas_ld(args, 1) << 32) | rtas_ld(args, 2); sphb = find_phb(spapr, buid); if (!sphb) { goto param_error_exit; } spc = SPAPR_PCI_HOST_BRIDGE_GET_CLASS(sphb); if (!spc->eeh_configure) { goto param_error_exit; } ret = spc->eeh_configure(sphb); rtas_st(rets, 0, ret); return; param_error_exit: rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR); }

qemu

46c5874e9cd752ed8ded31af03472edd8fc3efc1

static void sigp_cpu_start(void *arg) { CPUState *cs = arg; S390CPU *cpu = S390_CPU(cs); s390_cpu_set_state(CPU_STATE_OPERATING, cpu); DPRINTF("DONE: KVM cpu start: %p\n", &cpu->env); }

qemu

6eb8f212d2686ed9b17077d554465df7ae06f805

static int dca_subsubframe(DCAContext *s, int base_channel, int block_index) { int k, l; int subsubframe = s->current_subsubframe; const float *quant_step_table; /* FIXME */ float (*subband_samples)[DCA_SUBBANDS][8] = s->subband_samples[block_index]; LOCAL_ALIGNED_16(int32_t, block, [8 * DCA_SUBBANDS]); /* * Audio data */ /* Select quantization step size table */ if (s->bit_rate_index == 0x1f) quant_step_table = lossless_quant_d; else quant_step_table = lossy_quant_d; for (k = base_channel; k < s->prim_channels; k++) { float rscale[DCA_SUBBANDS]; if (get_bits_left(&s->gb) < 0) return AVERROR_INVALIDDATA; for (l = 0; l < s->vq_start_subband[k]; l++) { int m; /* Select the mid-tread linear quantizer */ int abits = s->bitalloc[k][l]; float quant_step_size = quant_step_table[abits]; /* * Determine quantization index code book and its type */ /* Select quantization index code book */ int sel = s->quant_index_huffman[k][abits]; /* * Extract bits from the bit stream */ if (!abits) { rscale[l] = 0; memset(block + 8 * l, 0, 8 * sizeof(block[0])); } else { /* Deal with transients */ int sfi = s->transition_mode[k][l] && subsubframe >= s->transition_mode[k][l]; rscale[l] = quant_step_size * s->scale_factor[k][l][sfi] * s->scalefactor_adj[k][sel]; if (abits >= 11 || !dca_smpl_bitalloc[abits].vlc[sel].table) { if (abits <= 7) { /* Block code */ int block_code1, block_code2, size, levels, err; size = abits_sizes[abits - 1]; levels = abits_levels[abits - 1]; block_code1 = get_bits(&s->gb, size); block_code2 = get_bits(&s->gb, size); err = decode_blockcodes(block_code1, block_code2, levels, block + 8 * l); if (err) { av_log(s->avctx, AV_LOG_ERROR, "ERROR: block code look-up failed\n"); return AVERROR_INVALIDDATA; } } else { /* no coding */ for (m = 0; m < 8; m++) block[8 * l + m] = get_sbits(&s->gb, abits - 3); } } else { /* Huffman coded */ for (m = 0; m < 8; m++) block[8 * l + m] = get_bitalloc(&s->gb, &dca_smpl_bitalloc[abits], sel); } } } s->fmt_conv.int32_to_float_fmul_array8(&s->fmt_conv, subband_samples[k][0], block, rscale, 8 * s->vq_start_subband[k]); for (l = 0; l < s->vq_start_subband[k]; l++) { int m; /* * Inverse ADPCM if in prediction mode */ if (s->prediction_mode[k][l]) { int n; if (s->predictor_history) subband_samples[k][l][0] += (adpcm_vb[s->prediction_vq[k][l]][0] * s->subband_samples_hist[k][l][3] + adpcm_vb[s->prediction_vq[k][l]][1] * s->subband_samples_hist[k][l][2] + adpcm_vb[s->prediction_vq[k][l]][2] * s->subband_samples_hist[k][l][1] + adpcm_vb[s->prediction_vq[k][l]][3] * s->subband_samples_hist[k][l][0]) * (1.0f / 8192); for (m = 1; m < 8; m++) { float sum = adpcm_vb[s->prediction_vq[k][l]][0] * subband_samples[k][l][m - 1]; for (n = 2; n <= 4; n++) if (m >= n) sum += adpcm_vb[s->prediction_vq[k][l]][n - 1] * subband_samples[k][l][m - n]; else if (s->predictor_history) sum += adpcm_vb[s->prediction_vq[k][l]][n - 1] * s->subband_samples_hist[k][l][m - n + 4]; subband_samples[k][l][m] += sum * 1.0f / 8192; } } } /* * Decode VQ encoded high frequencies */ for (l = s->vq_start_subband[k]; l < s->subband_activity[k]; l++) { /* 1 vector -> 32 samples but we only need the 8 samples * for this subsubframe. */ int hfvq = s->high_freq_vq[k][l]; if (!s->debug_flag & 0x01) { av_log(s->avctx, AV_LOG_DEBUG, "Stream with high frequencies VQ coding\n"); s->debug_flag |= 0x01; } int8x8_fmul_int32(&s->dcadsp, subband_samples[k][l], &high_freq_vq[hfvq][subsubframe * 8], s->scale_factor[k][l][0]); } } /* Check for DSYNC after subsubframe */ if (s->aspf || subsubframe == s->subsubframes[s->current_subframe] - 1) { if (0xFFFF == get_bits(&s->gb, 16)) { /* 0xFFFF */ #ifdef TRACE av_log(s->avctx, AV_LOG_DEBUG, "Got subframe DSYNC\n"); #endif } else { av_log(s->avctx, AV_LOG_ERROR, "Didn't get subframe DSYNC\n"); return AVERROR_INVALIDDATA; } } /* Backup predictor history for adpcm */ for (k = base_channel; k < s->prim_channels; k++) for (l = 0; l < s->vq_start_subband[k]; l++) AV_COPY128(s->subband_samples_hist[k][l], &subband_samples[k][l][4]); return 0; }

FFmpeg

4cb6964244fd6c099383d8b7e99731e72cc844b9

int ff_mpeg_update_thread_context(AVCodecContext *dst, const AVCodecContext *src) { int i; MpegEncContext *s = dst->priv_data, *s1 = src->priv_data; if (dst == src) return 0; // FIXME can parameters change on I-frames? // in that case dst may need a reinit if (!s->context_initialized) { memcpy(s, s1, sizeof(MpegEncContext)); s->avctx = dst; s->bitstream_buffer = NULL; s->bitstream_buffer_size = s->allocated_bitstream_buffer_size = 0; if (s1->context_initialized){ s->picture_range_start += MAX_PICTURE_COUNT; s->picture_range_end += MAX_PICTURE_COUNT; ff_MPV_common_init(s); } } if (s->height != s1->height || s->width != s1->width || s->context_reinit) { int err; s->context_reinit = 0; s->height = s1->height; s->width = s1->width; if ((err = ff_MPV_common_frame_size_change(s)) < 0) return err; } s->avctx->coded_height = s1->avctx->coded_height; s->avctx->coded_width = s1->avctx->coded_width; s->avctx->width = s1->avctx->width; s->avctx->height = s1->avctx->height; s->coded_picture_number = s1->coded_picture_number; s->picture_number = s1->picture_number; s->input_picture_number = s1->input_picture_number; memcpy(s->picture, s1->picture, s1->picture_count * sizeof(Picture)); memcpy(&s->last_picture, &s1->last_picture, (char *) &s1->last_picture_ptr - (char *) &s1->last_picture); // reset s->picture[].f.extended_data to s->picture[].f.data for (i = 0; i < s->picture_count; i++) s->picture[i].f.extended_data = s->picture[i].f.data; s->last_picture_ptr = REBASE_PICTURE(s1->last_picture_ptr, s, s1); s->current_picture_ptr = REBASE_PICTURE(s1->current_picture_ptr, s, s1); s->next_picture_ptr = REBASE_PICTURE(s1->next_picture_ptr, s, s1); // Error/bug resilience s->next_p_frame_damaged = s1->next_p_frame_damaged; s->workaround_bugs = s1->workaround_bugs; s->padding_bug_score = s1->padding_bug_score; // MPEG4 timing info memcpy(&s->time_increment_bits, &s1->time_increment_bits, (char *) &s1->shape - (char *) &s1->time_increment_bits); // B-frame info s->max_b_frames = s1->max_b_frames; s->low_delay = s1->low_delay; s->dropable = s1->dropable; // DivX handling (doesn't work) s->divx_packed = s1->divx_packed; if (s1->bitstream_buffer) { if (s1->bitstream_buffer_size + FF_INPUT_BUFFER_PADDING_SIZE > s->allocated_bitstream_buffer_size) av_fast_malloc(&s->bitstream_buffer, &s->allocated_bitstream_buffer_size, s1->allocated_bitstream_buffer_size); s->bitstream_buffer_size = s1->bitstream_buffer_size; memcpy(s->bitstream_buffer, s1->bitstream_buffer, s1->bitstream_buffer_size); memset(s->bitstream_buffer + s->bitstream_buffer_size, 0, FF_INPUT_BUFFER_PADDING_SIZE); } // MPEG2/interlacing info memcpy(&s->progressive_sequence, &s1->progressive_sequence, (char *) &s1->rtp_mode - (char *) &s1->progressive_sequence); if (!s1->first_field) { s->last_pict_type = s1->pict_type; if (s1->current_picture_ptr) s->last_lambda_for[s1->pict_type] = s1->current_picture_ptr->f.quality; if (s1->pict_type != AV_PICTURE_TYPE_B) { s->last_non_b_pict_type = s1->pict_type; } } return 0; }

FFmpeg

f4d73f0fb55e0b5931c859ddb4d2d1617b60d560

static int h261_probe(AVProbeData *p) { int code; const uint8_t *d; if (p->buf_size < 6) return 0; d = p->buf; code = (d[0] << 12) | (d[1] << 4) | (d[2] >> 4); if (code == 0x10) { return 50; } return 0; }

FFmpeg

87e8788680e16c51f6048af26f3f7830c35207a5

static void netfilter_finalize(Object *obj) { NetFilterState *nf = NETFILTER(obj); NetFilterClass *nfc = NETFILTER_GET_CLASS(obj); if (nfc->cleanup) { nfc->cleanup(nf); } if (nf->netdev && !QTAILQ_EMPTY(&nf->netdev->filters) && nf->next.tqe_prev) { QTAILQ_REMOVE(&nf->netdev->filters, nf, next); } g_free(nf->netdev_id); }

qemu

3b8c1761f0e1523622e008836d01a6544b1c21ab

static void ne2000_cleanup(NetClientState *nc) { NE2000State *s = qemu_get_nic_opaque(nc); s->nic = NULL; }

qemu

57407ea44cc0a3d630b9b89a2be011f1955ce5c1

static void sys_write(void *opaque, hwaddr addr, uint64_t value, unsigned size) { LM32SysState *s = opaque; char *testname; trace_lm32_sys_memory_write(addr, value); addr >>= 2; switch (addr) { case R_CTRL: qemu_system_shutdown_request(); break; case R_PASSFAIL: s->regs[addr] = value; testname = (char *)s->testname; qemu_log("TC %-16s %s\n", testname, (value) ? "FAILED" : "OK"); break; case R_TESTNAME: s->regs[addr] = value; copy_testname(s); break; default: error_report("lm32_sys: write access to unknown register 0x" TARGET_FMT_plx, addr << 2); break; } }

qemu

e67b3ca53a891413a33c45495ff20c2728d69722

static DeviceState *qbus_find_dev(BusState *bus, char *elem) { DeviceState *dev; /* * try to match in order: * (1) instance id, if present * (2) driver name * (3) driver alias, if present */ LIST_FOREACH(dev, &bus->children, sibling) { if (dev->id && strcmp(dev->id, elem) == 0) { return dev; } } LIST_FOREACH(dev, &bus->children, sibling) { if (strcmp(dev->info->name, elem) == 0) { return dev; } } LIST_FOREACH(dev, &bus->children, sibling) { if (dev->info->alias && strcmp(dev->info->alias, elem) == 0) { return dev; } } return NULL; }

qemu

72cf2d4f0e181d0d3a3122e04129c58a95da713e

void scsi_req_cancel_async(SCSIRequest *req, Notifier *notifier) { trace_scsi_req_cancel(req->dev->id, req->lun, req->tag); if (notifier) { notifier_list_add(&req->cancel_notifiers, notifier); } if (req->io_canceled) { return; } scsi_req_ref(req); scsi_req_dequeue(req); req->io_canceled = true; if (req->aiocb) { bdrv_aio_cancel_async(req->aiocb); } }

qemu

4be746345f13e99e468c60acbd3a355e8183e3ce

static inline void temp_save(TCGContext *s, TCGTemp *ts, TCGRegSet allocated_regs) { #ifdef USE_LIVENESS_ANALYSIS /* ??? Liveness does not yet incorporate indirect bases. */ if (!ts->indirect_base) { /* The liveness analysis already ensures that globals are back in memory. Keep an assert for safety. */ tcg_debug_assert(ts->val_type == TEMP_VAL_MEM || ts->fixed_reg); return; } #endif temp_sync(s, ts, allocated_regs); temp_dead(s, ts); }

qemu

eabb7b91b36b202b4dac2df2d59d698e3aff197a

static int mov_read_wfex(MOVContext *c, AVIOContext *pb, MOVAtom atom) { AVStream *st; if (c->fc->nb_streams < 1) return 0; st = c->fc->streams[c->fc->nb_streams-1]; ff_get_wav_header(pb, st->codec, atom.size); return 0; }

FFmpeg

2007082d2db25f9305b8a345798b840ea7784fdb

static void register_multipage(AddressSpaceDispatch *d, MemoryRegionSection *section) { target_phys_addr_t start_addr = section->offset_within_address_space; ram_addr_t size = section->size; target_phys_addr_t addr; uint16_t section_index = phys_section_add(section); assert(size); addr = start_addr; phys_page_set(d, addr >> TARGET_PAGE_BITS, size >> TARGET_PAGE_BITS, section_index); }

qemu

a8170e5e97ad17ca169c64ba87ae2f53850dab4c

static int IRQ_get_next(OpenPICState *opp, IRQQueue *q) { if (q->next == -1) { /* XXX: optimize */ IRQ_check(opp, q); } return q->next; }

qemu

3c94378e2c500b6211e95d7457f4a9959955c3d1

static int enable_write_target(BDRVVVFATState *s) { BlockDriver *bdrv_qcow; QEMUOptionParameter *options; Error *local_err = NULL; int ret; int size = sector2cluster(s, s->sector_count); s->used_clusters = calloc(size, 1); array_init(&(s->commits), sizeof(commit_t)); s->qcow_filename = g_malloc(1024); ret = get_tmp_filename(s->qcow_filename, 1024); if (ret < 0) { goto err; } bdrv_qcow = bdrv_find_format("qcow"); options = parse_option_parameters("", bdrv_qcow->create_options, NULL); set_option_parameter_int(options, BLOCK_OPT_SIZE, s->sector_count * 512); set_option_parameter(options, BLOCK_OPT_BACKING_FILE, "fat:"); ret = bdrv_create(bdrv_qcow, s->qcow_filename, options, &local_err); if (ret < 0) { qerror_report_err(local_err); error_free(local_err); goto err; } s->qcow = NULL; ret = bdrv_open(&s->qcow, s->qcow_filename, NULL, NULL, BDRV_O_RDWR | BDRV_O_CACHE_WB | BDRV_O_NO_FLUSH, bdrv_qcow, &local_err); if (ret < 0) { qerror_report_err(local_err); error_free(local_err); goto err; } #ifndef _WIN32 unlink(s->qcow_filename); #endif s->bs->backing_hd = bdrv_new(""); s->bs->backing_hd->drv = &vvfat_write_target; s->bs->backing_hd->opaque = g_malloc(sizeof(void*)); *(void**)s->bs->backing_hd->opaque = s; return 0; err: g_free(s->qcow_filename); s->qcow_filename = NULL; return ret; }

qemu

98522f63f40adaebc412481e1d2e9170160d4539

static void dump_json_image_info_list(ImageInfoList *list) { QString *str; QmpOutputVisitor *ov = qmp_output_visitor_new(); QObject *obj; visit_type_ImageInfoList(qmp_output_get_visitor(ov), NULL, &list, &error_abort); obj = qmp_output_get_qobject(ov); str = qobject_to_json_pretty(obj); assert(str != NULL); printf("%s\n", qstring_get_str(str)); qobject_decref(obj); qmp_output_visitor_cleanup(ov); QDECREF(str); }

qemu

1830f22a6777cedaccd67a08f675d30f7a85ebfd

static int get_segment32(CPUPPCState *env, struct mmu_ctx_hash32 *ctx, target_ulong eaddr, int rw, int type) { hwaddr hash; target_ulong vsid; int ds, pr, target_page_bits; int ret, ret2; target_ulong sr, pgidx; pr = msr_pr; ctx->eaddr = eaddr; sr = env->sr[eaddr >> 28]; ctx->key = (((sr & SR32_KP) && (pr != 0)) || ((sr & SR32_KS) && (pr == 0))) ? 1 : 0; ds = !!(sr & SR32_T); ctx->nx = !!(sr & SR32_NX); vsid = sr & SR32_VSID; target_page_bits = TARGET_PAGE_BITS; LOG_MMU("Check segment v=" TARGET_FMT_lx " %d " TARGET_FMT_lx " nip=" TARGET_FMT_lx " lr=" TARGET_FMT_lx " ir=%d dr=%d pr=%d %d t=%d\n", eaddr, (int)(eaddr >> 28), sr, env->nip, env->lr, (int)msr_ir, (int)msr_dr, pr != 0 ? 1 : 0, rw, type); pgidx = (eaddr & ~SEGMENT_MASK_256M) >> target_page_bits; hash = vsid ^ pgidx; ctx->ptem = (vsid << 7) | (pgidx >> 10); LOG_MMU("pte segment: key=%d ds %d nx %d vsid " TARGET_FMT_lx "\n", ctx->key, ds, ctx->nx, vsid); ret = -1; if (!ds) { /* Check if instruction fetch is allowed, if needed */ if (type != ACCESS_CODE || ctx->nx == 0) { /* Page address translation */ LOG_MMU("htab_base " TARGET_FMT_plx " htab_mask " TARGET_FMT_plx " hash " TARGET_FMT_plx "\n", env->htab_base, env->htab_mask, hash); ctx->hash[0] = hash; ctx->hash[1] = ~hash; /* Initialize real address with an invalid value */ ctx->raddr = (hwaddr)-1ULL; LOG_MMU("0 htab=" TARGET_FMT_plx "/" TARGET_FMT_plx " vsid=" TARGET_FMT_lx " ptem=" TARGET_FMT_lx " hash=" TARGET_FMT_plx "\n", env->htab_base, env->htab_mask, vsid, ctx->ptem, ctx->hash[0]); /* Primary table lookup */ ret = find_pte32(env, ctx, 0, rw, type, target_page_bits); if (ret < 0) { /* Secondary table lookup */ LOG_MMU("1 htab=" TARGET_FMT_plx "/" TARGET_FMT_plx " vsid=" TARGET_FMT_lx " api=" TARGET_FMT_lx " hash=" TARGET_FMT_plx "\n", env->htab_base, env->htab_mask, vsid, ctx->ptem, ctx->hash[1]); ret2 = find_pte32(env, ctx, 1, rw, type, target_page_bits); if (ret2 != -1) { ret = ret2; } } #if defined(DUMP_PAGE_TABLES) if (qemu_log_enabled()) { hwaddr curaddr; uint32_t a0, a1, a2, a3; qemu_log("Page table: " TARGET_FMT_plx " len " TARGET_FMT_plx "\n", sdr, mask + 0x80); for (curaddr = sdr; curaddr < (sdr + mask + 0x80); curaddr += 16) { a0 = ldl_phys(curaddr); a1 = ldl_phys(curaddr + 4); a2 = ldl_phys(curaddr + 8); a3 = ldl_phys(curaddr + 12); if (a0 != 0 || a1 != 0 || a2 != 0 || a3 != 0) { qemu_log(TARGET_FMT_plx ": %08x %08x %08x %08x\n", curaddr, a0, a1, a2, a3); } } } #endif } else { LOG_MMU("No access allowed\n"); ret = -3; } } else { target_ulong sr; LOG_MMU("direct store...\n"); /* Direct-store segment : absolutely *BUGGY* for now */ /* Direct-store implies a 32-bit MMU. * Check the Segment Register's bus unit ID (BUID). */ sr = env->sr[eaddr >> 28]; if ((sr & 0x1FF00000) >> 20 == 0x07f) { /* Memory-forced I/O controller interface access */ /* If T=1 and BUID=x'07F', the 601 performs a memory access * to SR[28-31] LA[4-31], bypassing all protection mechanisms. */ ctx->raddr = ((sr & 0xF) << 28) | (eaddr & 0x0FFFFFFF); ctx->prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC; return 0; } switch (type) { case ACCESS_INT: /* Integer load/store : only access allowed */ break; case ACCESS_CODE: /* No code fetch is allowed in direct-store areas */ return -4; case ACCESS_FLOAT: /* Floating point load/store */ return -4; case ACCESS_RES: /* lwarx, ldarx or srwcx. */ return -4; case ACCESS_CACHE: /* dcba, dcbt, dcbtst, dcbf, dcbi, dcbst, dcbz, or icbi */ /* Should make the instruction do no-op. * As it already do no-op, it's quite easy :-) */ ctx->raddr = eaddr; return 0; case ACCESS_EXT: /* eciwx or ecowx */ return -4; default: qemu_log("ERROR: instruction should not need " "address translation\n"); return -4; } if ((rw == 1 || ctx->key != 1) && (rw == 0 || ctx->key != 0)) { ctx->raddr = eaddr; ret = 2; } else { ret = -2; } } return ret; }

qemu

91cda45b69e45a089f9989979a65db3f710c9925

static int dmg_read_mish_block(BDRVDMGState *s, DmgHeaderState *ds, uint8_t *buffer, uint32_t count) { uint32_t type, i; int ret; size_t new_size; uint32_t chunk_count; int64_t offset = 0; uint64_t data_offset; uint64_t in_offset = ds->data_fork_offset; uint64_t out_offset; type = buff_read_uint32(buffer, offset); /* skip data that is not a valid MISH block (invalid magic or too small) */ if (type != 0x6d697368 || count < 244) { /* assume success for now */ return 0; } /* chunk offsets are relative to this sector number */ out_offset = buff_read_uint64(buffer, offset + 8); /* location in data fork for (compressed) blob (in bytes) */ data_offset = buff_read_uint64(buffer, offset + 0x18); in_offset += data_offset; /* move to begin of chunk entries */ offset += 204; chunk_count = (count - 204) / 40; new_size = sizeof(uint64_t) * (s->n_chunks + chunk_count); s->types = g_realloc(s->types, new_size / 2); s->offsets = g_realloc(s->offsets, new_size); s->lengths = g_realloc(s->lengths, new_size); s->sectors = g_realloc(s->sectors, new_size); s->sectorcounts = g_realloc(s->sectorcounts, new_size); for (i = s->n_chunks; i < s->n_chunks + chunk_count; i++) { s->types[i] = buff_read_uint32(buffer, offset); offset += 4; if (s->types[i] != 0x80000005 && s->types[i] != 1 && s->types[i] != 2) { chunk_count--; i--; offset += 36; continue; } offset += 4; s->sectors[i] = buff_read_uint64(buffer, offset); s->sectors[i] += out_offset; offset += 8; s->sectorcounts[i] = buff_read_uint64(buffer, offset); offset += 8; if (s->sectorcounts[i] > DMG_SECTORCOUNTS_MAX) { error_report("sector count %" PRIu64 " for chunk %" PRIu32 " is larger than max (%u)", s->sectorcounts[i], i, DMG_SECTORCOUNTS_MAX); ret = -EINVAL; goto fail; } s->offsets[i] = buff_read_uint64(buffer, offset); s->offsets[i] += in_offset; offset += 8; s->lengths[i] = buff_read_uint64(buffer, offset); offset += 8; if (s->lengths[i] > DMG_LENGTHS_MAX) { error_report("length %" PRIu64 " for chunk %" PRIu32 " is larger than max (%u)", s->lengths[i], i, DMG_LENGTHS_MAX); ret = -EINVAL; goto fail; } update_max_chunk_size(s, i, &ds->max_compressed_size, &ds->max_sectors_per_chunk); } s->n_chunks += chunk_count; return 0; fail: return ret; }

qemu

a8b10c6ead7f62e8eadbdaf944f371889c3c4c29

static always_inline void gen_qemu_ldf (TCGv t0, TCGv t1, int flags) { TCGv tmp = tcg_temp_new(TCG_TYPE_I32); tcg_gen_qemu_ld32u(tmp, t1, flags); tcg_gen_helper_1_1(helper_memory_to_f, t0, tmp); tcg_temp_free(tmp); }

qemu

a7812ae412311d7d47f8aa85656faadac9d64b56

static int local_chmod(FsContext *fs_ctx, V9fsPath *fs_path, FsCred *credp) { char buffer[PATH_MAX]; char *path = fs_path->data; if (fs_ctx->fs_sm == SM_MAPPED) { return local_set_xattr(rpath(fs_ctx, path, buffer), credp); } else if ((fs_ctx->fs_sm == SM_PASSTHROUGH) || (fs_ctx->fs_sm == SM_NONE)) { return chmod(rpath(fs_ctx, path, buffer), credp->fc_mode); } return -1; }

qemu

b97400caef60ccfb0bc81c59f8bd824c43a0d6c8

static inline PageDesc *page_find(target_ulong index) { PageDesc *p; p = l1_map[index >> L2_BITS]; if (!p) return 0; return p + (index & (L2_SIZE - 1)); }

qemu

434929bf11f0573d953c24287badbc2431a042ef

static int pcm_bluray_parse_header(AVCodecContext *avctx, const uint8_t *header) { static const uint8_t bits_per_samples[4] = { 0, 16, 20, 24 }; static const uint32_t channel_layouts[16] = { 0, AV_CH_LAYOUT_MONO, 0, AV_CH_LAYOUT_STEREO, AV_CH_LAYOUT_SURROUND, AV_CH_LAYOUT_2_1, AV_CH_LAYOUT_4POINT0, AV_CH_LAYOUT_2_2, AV_CH_LAYOUT_5POINT0, AV_CH_LAYOUT_5POINT1, AV_CH_LAYOUT_7POINT0, AV_CH_LAYOUT_7POINT1, 0, 0, 0, 0 }; static const uint8_t channels[16] = { 0, 1, 0, 2, 3, 3, 4, 4, 5, 6, 7, 8, 0, 0, 0, 0 }; uint8_t channel_layout = header[2] >> 4; if (avctx->debug & FF_DEBUG_PICT_INFO) av_dlog(avctx, "pcm_bluray_parse_header: header = %02x%02x%02x%02x\n", header[0], header[1], header[2], header[3]); /* get the sample depth and derive the sample format from it */ avctx->bits_per_coded_sample = bits_per_samples[header[3] >> 6]; if (!avctx->bits_per_coded_sample) { av_log(avctx, AV_LOG_ERROR, "unsupported sample depth (0)\n"); return -1; } avctx->sample_fmt = avctx->bits_per_coded_sample == 16 ? AV_SAMPLE_FMT_S16 : AV_SAMPLE_FMT_S32; if (avctx->sample_fmt == AV_SAMPLE_FMT_S32) avctx->bits_per_raw_sample = avctx->bits_per_coded_sample; /* get the sample rate. Not all values are known or exist. */ switch (header[2] & 0x0f) { case 1: avctx->sample_rate = 48000; break; case 4: avctx->sample_rate = 96000; break; case 5: avctx->sample_rate = 192000; break; default: avctx->sample_rate = 0; av_log(avctx, AV_LOG_ERROR, "unsupported sample rate (%d)\n", header[2] & 0x0f); return -1; } /* * get the channel number (and mapping). Not all values are known or exist. * It must be noted that the number of channels in the MPEG stream can * differ from the actual meaningful number, e.g. mono audio still has two * channels, one being empty. */ avctx->channel_layout = channel_layouts[channel_layout]; avctx->channels = channels[channel_layout]; if (!avctx->channels) { av_log(avctx, AV_LOG_ERROR, "unsupported channel configuration (%d)\n", channel_layout); return -1; } avctx->bit_rate = avctx->channels * avctx->sample_rate * avctx->bits_per_coded_sample; if (avctx->debug & FF_DEBUG_PICT_INFO) av_dlog(avctx, "pcm_bluray_parse_header: %d channels, %d bits per sample, %d kHz, %d kbit\n", avctx->channels, avctx->bits_per_coded_sample, avctx->sample_rate, avctx->bit_rate); return 0; }

FFmpeg

cd0cfdc0a74cbf45f0d00b65faaf3cf5bd93c016

static int protocol_client_auth_sasl_mechname_len(VncState *vs, uint8_t *data, size_t len) { uint32_t mechlen = read_u32(data, 0); VNC_DEBUG("Got client mechname len %d\n", mechlen); if (mechlen > 100) { VNC_DEBUG("Too long SASL mechname data %d\n", mechlen); vnc_client_error(vs); return -1; } if (mechlen < 1) { VNC_DEBUG("Too short SASL mechname %d\n", mechlen); vnc_client_error(vs); return -1; } vnc_read_when(vs, protocol_client_auth_sasl_mechname,mechlen); return 0; }

qemu

7364dbdabb7824d5bde1e341bb6d928282f01c83

static inline int ultrasparc_tag_match(SparcTLBEntry *tlb, uint64_t address, uint64_t context, target_phys_addr_t *physical, int is_nucleus) { uint64_t mask; switch ((tlb->tte >> 61) & 3) { default: case 0x0: // 8k mask = 0xffffffffffffe000ULL; break; case 0x1: // 64k mask = 0xffffffffffff0000ULL; break; case 0x2: // 512k mask = 0xfffffffffff80000ULL; break; case 0x3: // 4M mask = 0xffffffffffc00000ULL; break; } // valid, context match, virtual address match? if (TTE_IS_VALID(tlb->tte) && ((is_nucleus && compare_masked(0, tlb->tag, 0x1fff)) || TTE_IS_GLOBAL(tlb->tte) || compare_masked(context, tlb->tag, 0x1fff)) && compare_masked(address, tlb->tag, mask)) { // decode physical address *physical = ((tlb->tte & mask) | (address & ~mask)) & 0x1ffffffe000ULL; return 1; } return 0; }

qemu

299b520cd4092be3c53f8380b81315c33927d9d3

int ff_dxva2_commit_buffer(AVCodecContext *avctx, AVDXVAContext *ctx, DECODER_BUFFER_DESC *dsc, unsigned type, const void *data, unsigned size, unsigned mb_count) { void *dxva_data; unsigned dxva_size; int result; HRESULT hr; #if CONFIG_D3D11VA if (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD) hr = ID3D11VideoContext_GetDecoderBuffer(D3D11VA_CONTEXT(ctx)->video_context, D3D11VA_CONTEXT(ctx)->decoder, type, &dxva_size, &dxva_data); #endif #if CONFIG_DXVA2 if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD) hr = IDirectXVideoDecoder_GetBuffer(DXVA2_CONTEXT(ctx)->decoder, type, &dxva_data, &dxva_size); #endif if (FAILED(hr)) { av_log(avctx, AV_LOG_ERROR, "Failed to get a buffer for %u: 0x%lx\n", type, hr); return -1; } if (size <= dxva_size) { memcpy(dxva_data, data, size); #if CONFIG_D3D11VA if (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD) { D3D11_VIDEO_DECODER_BUFFER_DESC *dsc11 = dsc; memset(dsc11, 0, sizeof(*dsc11)); dsc11->BufferType = type; dsc11->DataSize = size; dsc11->NumMBsInBuffer = mb_count; } #endif #if CONFIG_DXVA2 if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD) { DXVA2_DecodeBufferDesc *dsc2 = dsc; memset(dsc2, 0, sizeof(*dsc2)); dsc2->CompressedBufferType = type; dsc2->DataSize = size; dsc2->NumMBsInBuffer = mb_count; } #endif result = 0; } else { av_log(avctx, AV_LOG_ERROR, "Buffer for type %u was too small\n", type); result = -1; } #if CONFIG_D3D11VA if (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD) hr = ID3D11VideoContext_ReleaseDecoderBuffer(D3D11VA_CONTEXT(ctx)->video_context, D3D11VA_CONTEXT(ctx)->decoder, type); #endif #if CONFIG_DXVA2 if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD) hr = IDirectXVideoDecoder_ReleaseBuffer(DXVA2_CONTEXT(ctx)->decoder, type); #endif if (FAILED(hr)) { av_log(avctx, AV_LOG_ERROR, "Failed to release buffer type %u: 0x%lx\n", type, hr); result = -1; } return result; }

FFmpeg

7ed5d78d619e45b46ba003e8014767b05b73b7d2

static void new_video_stream(AVFormatContext *oc, int file_idx) { AVStream *st; AVOutputStream *ost; AVCodecContext *video_enc; enum CodecID codec_id; AVCodec *codec= NULL; st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0); if (!st) { fprintf(stderr, "Could not alloc stream\n"); ffmpeg_exit(1); } ost = new_output_stream(oc, file_idx); output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1); if(!video_stream_copy){ if (video_codec_name) { codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1, avcodec_opts[AVMEDIA_TYPE_VIDEO]->strict_std_compliance); codec = avcodec_find_encoder_by_name(video_codec_name); output_codecs[nb_output_codecs-1] = codec; } else { codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO); codec = avcodec_find_encoder(codec_id); } } avcodec_get_context_defaults3(st->codec, codec); ost->bitstream_filters = video_bitstream_filters; video_bitstream_filters= NULL; avcodec_thread_init(st->codec, thread_count); video_enc = st->codec; if(video_codec_tag) video_enc->codec_tag= video_codec_tag; if( (video_global_header&1) || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){ video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER; avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER; } if(video_global_header&2){ video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER; avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER; } if (video_stream_copy) { st->stream_copy = 1; video_enc->codec_type = AVMEDIA_TYPE_VIDEO; video_enc->sample_aspect_ratio = st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255); } else { const char *p; int i; AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1}; video_enc->codec_id = codec_id; set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec); if (codec && codec->supported_framerates && !force_fps) fps = codec->supported_framerates[av_find_nearest_q_idx(fps, codec->supported_framerates)]; video_enc->time_base.den = fps.num; video_enc->time_base.num = fps.den; video_enc->width = frame_width; video_enc->height = frame_height; video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*video_enc->height/video_enc->width, 255); video_enc->pix_fmt = frame_pix_fmt; st->sample_aspect_ratio = video_enc->sample_aspect_ratio; choose_pixel_fmt(st, codec); if (intra_only) video_enc->gop_size = 0; if (video_qscale || same_quality) { video_enc->flags |= CODEC_FLAG_QSCALE; video_enc->global_quality= st->quality = FF_QP2LAMBDA * video_qscale; } if(intra_matrix) video_enc->intra_matrix = intra_matrix; if(inter_matrix) video_enc->inter_matrix = inter_matrix; p= video_rc_override_string; for(i=0; p; i++){ int start, end, q; int e=sscanf(p, "%d,%d,%d", &start, &end, &q); if(e!=3){ fprintf(stderr, "error parsing rc_override\n"); ffmpeg_exit(1); } video_enc->rc_override= av_realloc(video_enc->rc_override, sizeof(RcOverride)*(i+1)); video_enc->rc_override[i].start_frame= start; video_enc->rc_override[i].end_frame = end; if(q>0){ video_enc->rc_override[i].qscale= q; video_enc->rc_override[i].quality_factor= 1.0; } else{ video_enc->rc_override[i].qscale= 0; video_enc->rc_override[i].quality_factor= -q/100.0; } p= strchr(p, '/'); if(p) p++; } video_enc->rc_override_count=i; if (!video_enc->rc_initial_buffer_occupancy) video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4; video_enc->me_threshold= me_threshold; video_enc->intra_dc_precision= intra_dc_precision - 8; if (do_psnr) video_enc->flags|= CODEC_FLAG_PSNR; /* two pass mode */ if (do_pass) { if (do_pass == 1) { video_enc->flags |= CODEC_FLAG_PASS1; } else { video_enc->flags |= CODEC_FLAG_PASS2; } } if (forced_key_frames) parse_forced_key_frames(forced_key_frames, ost, video_enc); } if (video_language) { av_metadata_set2(&st->metadata, "language", video_language, 0); av_freep(&video_language); } /* reset some key parameters */ video_disable = 0; av_freep(&video_codec_name); av_freep(&forced_key_frames); video_stream_copy = 0; frame_pix_fmt = PIX_FMT_NONE; }

FFmpeg

4618637aca3b771b0bfb8fe15f3a080dacf9f0c0

static ExitStatus trans_fop_wew_0e(DisasContext *ctx, uint32_t insn, const DisasInsn *di) { unsigned rt = assemble_rt64(insn); unsigned ra = assemble_ra64(insn); return do_fop_wew(ctx, rt, ra, di->f_wew); }

qemu

eff235eb2bcd7092901f4698a7907e742f3b7f2f

static int alac_decode_frame(AVCodecContext *avctx, void *outbuffer, int *outputsize, uint8_t *inbuffer, int input_buffer_size) { ALACContext *alac = avctx->priv_data; int channels; int32_t outputsamples; /* short-circuit null buffers */ if (!inbuffer || !input_buffer_size) return input_buffer_size; /* initialize from the extradata */ if (!alac->context_initialized) { if (alac->avctx->extradata_size != ALAC_EXTRADATA_SIZE) { av_log(avctx, AV_LOG_ERROR, "alac: expected %d extradata bytes\n", ALAC_EXTRADATA_SIZE); return input_buffer_size; } alac_set_info(alac); alac->context_initialized = 1; } outputsamples = alac->setinfo_max_samples_per_frame; init_get_bits(&alac->gb, inbuffer, input_buffer_size * 8); channels = get_bits(&alac->gb, 3); *outputsize = outputsamples * alac->bytespersample; switch(channels) { case 0: { /* 1 channel */ int hassize; int isnotcompressed; int readsamplesize; int wasted_bytes; int ricemodifier; /* 2^result = something to do with output waiting. * perhaps matters if we read > 1 frame in a pass? */ get_bits(&alac->gb, 4); get_bits(&alac->gb, 12); /* unknown, skip 12 bits */ hassize = get_bits(&alac->gb, 1); /* the output sample size is stored soon */ wasted_bytes = get_bits(&alac->gb, 2); /* unknown ? */ isnotcompressed = get_bits(&alac->gb, 1); /* whether the frame is compressed */ if (hassize) { /* now read the number of samples, * as a 32bit integer */ outputsamples = get_bits(&alac->gb, 32); *outputsize = outputsamples * alac->bytespersample; } readsamplesize = alac->setinfo_sample_size - (wasted_bytes * 8); if (!isnotcompressed) { /* so it is compressed */ int16_t predictor_coef_table[32]; int predictor_coef_num; int prediction_type; int prediction_quantitization; int i; /* FIXME: skip 16 bits, not sure what they are. seem to be used in * two channel case */ get_bits(&alac->gb, 8); get_bits(&alac->gb, 8); prediction_type = get_bits(&alac->gb, 4); prediction_quantitization = get_bits(&alac->gb, 4); ricemodifier = get_bits(&alac->gb, 3); predictor_coef_num = get_bits(&alac->gb, 5); /* read the predictor table */ for (i = 0; i < predictor_coef_num; i++) { predictor_coef_table[i] = (int16_t)get_bits(&alac->gb, 16); } if (wasted_bytes) { /* these bytes seem to have something to do with * > 2 channel files. */ av_log(avctx, AV_LOG_ERROR, "FIXME: unimplemented, unhandling of wasted_bytes\n"); } bastardized_rice_decompress(alac, alac->predicterror_buffer_a, outputsamples, readsamplesize, alac->setinfo_rice_initialhistory, alac->setinfo_rice_kmodifier, ricemodifier * alac->setinfo_rice_historymult / 4, (1 << alac->setinfo_rice_kmodifier) - 1); if (prediction_type == 0) { /* adaptive fir */ predictor_decompress_fir_adapt(alac->predicterror_buffer_a, alac->outputsamples_buffer_a, outputsamples, readsamplesize, predictor_coef_table, predictor_coef_num, prediction_quantitization); } else { av_log(avctx, AV_LOG_ERROR, "FIXME: unhandled prediction type: %i\n", prediction_type); /* i think the only other prediction type (or perhaps this is just a * boolean?) runs adaptive fir twice.. like: * predictor_decompress_fir_adapt(predictor_error, tempout, ...) * predictor_decompress_fir_adapt(predictor_error, outputsamples ...) * little strange.. */ } } else { /* not compressed, easy case */ if (readsamplesize <= 16) { int i; for (i = 0; i < outputsamples; i++) { int32_t audiobits = get_bits(&alac->gb, readsamplesize); audiobits = SIGN_EXTENDED32(audiobits, readsamplesize); alac->outputsamples_buffer_a[i] = audiobits; } } else { int i; for (i = 0; i < outputsamples; i++) { int32_t audiobits; audiobits = get_bits(&alac->gb, 16); /* special case of sign extension.. * as we'll be ORing the low 16bits into this */ audiobits = audiobits << 16; audiobits = audiobits >> (32 - readsamplesize); audiobits |= get_bits(&alac->gb, readsamplesize - 16); alac->outputsamples_buffer_a[i] = audiobits; } } /* wasted_bytes = 0; // unused */ } switch(alac->setinfo_sample_size) { case 16: { int i; for (i = 0; i < outputsamples; i++) { int16_t sample = alac->outputsamples_buffer_a[i]; ((int16_t*)outbuffer)[i * alac->numchannels] = sample; } break; } case 20: case 24: case 32: av_log(avctx, AV_LOG_ERROR, "FIXME: unimplemented sample size %i\n", alac->setinfo_sample_size); break; default: break; } break; } case 1: { /* 2 channels */ int hassize; int isnotcompressed; int readsamplesize; int wasted_bytes; uint8_t interlacing_shift; uint8_t interlacing_leftweight; /* 2^result = something to do with output waiting. * perhaps matters if we read > 1 frame in a pass? */ get_bits(&alac->gb, 4); get_bits(&alac->gb, 12); /* unknown, skip 12 bits */ hassize = get_bits(&alac->gb, 1); /* the output sample size is stored soon */ wasted_bytes = get_bits(&alac->gb, 2); /* unknown ? */ isnotcompressed = get_bits(&alac->gb, 1); /* whether the frame is compressed */ if (hassize) { /* now read the number of samples, * as a 32bit integer */ outputsamples = get_bits(&alac->gb, 32); *outputsize = outputsamples * alac->bytespersample; } readsamplesize = alac->setinfo_sample_size - (wasted_bytes * 8) + 1; if (!isnotcompressed) { /* compressed */ int16_t predictor_coef_table_a[32]; int predictor_coef_num_a; int prediction_type_a; int prediction_quantitization_a; int ricemodifier_a; int16_t predictor_coef_table_b[32]; int predictor_coef_num_b; int prediction_type_b; int prediction_quantitization_b; int ricemodifier_b; int i; interlacing_shift = get_bits(&alac->gb, 8); interlacing_leftweight = get_bits(&alac->gb, 8); /******** channel 1 ***********/ prediction_type_a = get_bits(&alac->gb, 4); prediction_quantitization_a = get_bits(&alac->gb, 4); ricemodifier_a = get_bits(&alac->gb, 3); predictor_coef_num_a = get_bits(&alac->gb, 5); /* read the predictor table */ for (i = 0; i < predictor_coef_num_a; i++) { predictor_coef_table_a[i] = (int16_t)get_bits(&alac->gb, 16); } /******** channel 2 *********/ prediction_type_b = get_bits(&alac->gb, 4); prediction_quantitization_b = get_bits(&alac->gb, 4); ricemodifier_b = get_bits(&alac->gb, 3); predictor_coef_num_b = get_bits(&alac->gb, 5); /* read the predictor table */ for (i = 0; i < predictor_coef_num_b; i++) { predictor_coef_table_b[i] = (int16_t)get_bits(&alac->gb, 16); } /*********************/ if (wasted_bytes) { /* see mono case */ av_log(avctx, AV_LOG_ERROR, "FIXME: unimplemented, unhandling of wasted_bytes\n"); } /* channel 1 */ bastardized_rice_decompress(alac, alac->predicterror_buffer_a, outputsamples, readsamplesize, alac->setinfo_rice_initialhistory, alac->setinfo_rice_kmodifier, ricemodifier_a * alac->setinfo_rice_historymult / 4, (1 << alac->setinfo_rice_kmodifier) - 1); if (prediction_type_a == 0) { /* adaptive fir */ predictor_decompress_fir_adapt(alac->predicterror_buffer_a, alac->outputsamples_buffer_a, outputsamples, readsamplesize, predictor_coef_table_a, predictor_coef_num_a, prediction_quantitization_a); } else { /* see mono case */ av_log(avctx, AV_LOG_ERROR, "FIXME: unhandled prediction type: %i\n", prediction_type_a); } /* channel 2 */ bastardized_rice_decompress(alac, alac->predicterror_buffer_b, outputsamples, readsamplesize, alac->setinfo_rice_initialhistory, alac->setinfo_rice_kmodifier, ricemodifier_b * alac->setinfo_rice_historymult / 4, (1 << alac->setinfo_rice_kmodifier) - 1); if (prediction_type_b == 0) { /* adaptive fir */ predictor_decompress_fir_adapt(alac->predicterror_buffer_b, alac->outputsamples_buffer_b, outputsamples, readsamplesize, predictor_coef_table_b, predictor_coef_num_b, prediction_quantitization_b); } else { av_log(avctx, AV_LOG_ERROR, "FIXME: unhandled prediction type: %i\n", prediction_type_b); } } else { /* not compressed, easy case */ if (alac->setinfo_sample_size <= 16) { int i; for (i = 0; i < outputsamples; i++) { int32_t audiobits_a, audiobits_b; audiobits_a = get_bits(&alac->gb, alac->setinfo_sample_size); audiobits_b = get_bits(&alac->gb, alac->setinfo_sample_size); audiobits_a = SIGN_EXTENDED32(audiobits_a, alac->setinfo_sample_size); audiobits_b = SIGN_EXTENDED32(audiobits_b, alac->setinfo_sample_size); alac->outputsamples_buffer_a[i] = audiobits_a; alac->outputsamples_buffer_b[i] = audiobits_b; } } else { int i; for (i = 0; i < outputsamples; i++) { int32_t audiobits_a, audiobits_b; audiobits_a = get_bits(&alac->gb, 16); audiobits_a = audiobits_a << 16; audiobits_a = audiobits_a >> (32 - alac->setinfo_sample_size); audiobits_a |= get_bits(&alac->gb, alac->setinfo_sample_size - 16); audiobits_b = get_bits(&alac->gb, 16); audiobits_b = audiobits_b << 16; audiobits_b = audiobits_b >> (32 - alac->setinfo_sample_size); audiobits_b |= get_bits(&alac->gb, alac->setinfo_sample_size - 16); alac->outputsamples_buffer_a[i] = audiobits_a; alac->outputsamples_buffer_b[i] = audiobits_b; } } /* wasted_bytes = 0; */ interlacing_shift = 0; interlacing_leftweight = 0; } switch(alac->setinfo_sample_size) { case 16: { deinterlace_16(alac->outputsamples_buffer_a, alac->outputsamples_buffer_b, (int16_t*)outbuffer, alac->numchannels, outputsamples, interlacing_shift, interlacing_leftweight); break; } case 20: case 24: case 32: av_log(avctx, AV_LOG_ERROR, "FIXME: unimplemented sample size %i\n", alac->setinfo_sample_size); break; default: break; } break; } } return input_buffer_size; }

FFmpeg

1e25a7e7ebb55516d522a8ab1c4b7938b5060fe5

static int disas_thumb2_insn(CPUState *env, DisasContext *s, uint16_t insn_hw1) { uint32_t insn, imm, shift, offset; uint32_t rd, rn, rm, rs; TCGv tmp; TCGv tmp2; TCGv tmp3; TCGv addr; TCGv_i64 tmp64; int op; int shiftop; int conds; int logic_cc; if (!(arm_feature(env, ARM_FEATURE_THUMB2) || arm_feature (env, ARM_FEATURE_M))) { /* Thumb-1 cores may need to treat bl and blx as a pair of 16-bit instructions to get correct prefetch abort behavior. */ insn = insn_hw1; if ((insn & (1 << 12)) == 0) { /* Second half of blx. */ offset = ((insn & 0x7ff) << 1); tmp = load_reg(s, 14); tcg_gen_addi_i32(tmp, tmp, offset); tcg_gen_andi_i32(tmp, tmp, 0xfffffffc); tmp2 = new_tmp(); tcg_gen_movi_i32(tmp2, s->pc | 1); store_reg(s, 14, tmp2); gen_bx(s, tmp); return 0; } if (insn & (1 << 11)) { /* Second half of bl. */ offset = ((insn & 0x7ff) << 1) | 1; tmp = load_reg(s, 14); tcg_gen_addi_i32(tmp, tmp, offset); tmp2 = new_tmp(); tcg_gen_movi_i32(tmp2, s->pc | 1); store_reg(s, 14, tmp2); gen_bx(s, tmp); return 0; } if ((s->pc & ~TARGET_PAGE_MASK) == 0) { /* Instruction spans a page boundary. Implement it as two 16-bit instructions in case the second half causes an prefetch abort. */ offset = ((int32_t)insn << 21) >> 9; tcg_gen_movi_i32(cpu_R[14], s->pc + 2 + offset); return 0; } /* Fall through to 32-bit decode. */ } insn = lduw_code(s->pc); s->pc += 2; insn |= (uint32_t)insn_hw1 << 16; if ((insn & 0xf800e800) != 0xf000e800) { ARCH(6T2); } rn = (insn >> 16) & 0xf; rs = (insn >> 12) & 0xf; rd = (insn >> 8) & 0xf; rm = insn & 0xf; switch ((insn >> 25) & 0xf) { case 0: case 1: case 2: case 3: /* 16-bit instructions. Should never happen. */ abort(); case 4: if (insn & (1 << 22)) { /* Other load/store, table branch. */ if (insn & 0x01200000) { /* Load/store doubleword. */ if (rn == 15) { addr = new_tmp(); tcg_gen_movi_i32(addr, s->pc & ~3); } else { addr = load_reg(s, rn); } offset = (insn & 0xff) * 4; if ((insn & (1 << 23)) == 0) offset = -offset; if (insn & (1 << 24)) { tcg_gen_addi_i32(addr, addr, offset); offset = 0; } if (insn & (1 << 20)) { /* ldrd */ tmp = gen_ld32(addr, IS_USER(s)); store_reg(s, rs, tmp); tcg_gen_addi_i32(addr, addr, 4); tmp = gen_ld32(addr, IS_USER(s)); store_reg(s, rd, tmp); } else { /* strd */ tmp = load_reg(s, rs); gen_st32(tmp, addr, IS_USER(s)); tcg_gen_addi_i32(addr, addr, 4); tmp = load_reg(s, rd); gen_st32(tmp, addr, IS_USER(s)); } if (insn & (1 << 21)) { /* Base writeback. */ if (rn == 15) goto illegal_op; tcg_gen_addi_i32(addr, addr, offset - 4); store_reg(s, rn, addr); } else { dead_tmp(addr); } } else if ((insn & (1 << 23)) == 0) { /* Load/store exclusive word. */ addr = tcg_temp_local_new(); load_reg_var(s, addr, rn); tcg_gen_addi_i32(addr, addr, (insn & 0xff) << 2); if (insn & (1 << 20)) { gen_load_exclusive(s, rs, 15, addr, 2); } else { gen_store_exclusive(s, rd, rs, 15, addr, 2); } tcg_temp_free(addr); } else if ((insn & (1 << 6)) == 0) { /* Table Branch. */ if (rn == 15) { addr = new_tmp(); tcg_gen_movi_i32(addr, s->pc); } else { addr = load_reg(s, rn); } tmp = load_reg(s, rm); tcg_gen_add_i32(addr, addr, tmp); if (insn & (1 << 4)) { /* tbh */ tcg_gen_add_i32(addr, addr, tmp); dead_tmp(tmp); tmp = gen_ld16u(addr, IS_USER(s)); } else { /* tbb */ dead_tmp(tmp); tmp = gen_ld8u(addr, IS_USER(s)); } dead_tmp(addr); tcg_gen_shli_i32(tmp, tmp, 1); tcg_gen_addi_i32(tmp, tmp, s->pc); store_reg(s, 15, tmp); } else { /* Load/store exclusive byte/halfword/doubleword. */ ARCH(7); op = (insn >> 4) & 0x3; if (op == 2) { goto illegal_op; } addr = tcg_temp_local_new(); load_reg_var(s, addr, rn); if (insn & (1 << 20)) { gen_load_exclusive(s, rs, rd, addr, op); } else { gen_store_exclusive(s, rm, rs, rd, addr, op); } tcg_temp_free(addr); } } else { /* Load/store multiple, RFE, SRS. */ if (((insn >> 23) & 1) == ((insn >> 24) & 1)) { /* Not available in user mode. */ if (IS_USER(s)) goto illegal_op; if (insn & (1 << 20)) { /* rfe */ addr = load_reg(s, rn); if ((insn & (1 << 24)) == 0) tcg_gen_addi_i32(addr, addr, -8); /* Load PC into tmp and CPSR into tmp2. */ tmp = gen_ld32(addr, 0); tcg_gen_addi_i32(addr, addr, 4); tmp2 = gen_ld32(addr, 0); if (insn & (1 << 21)) { /* Base writeback. */ if (insn & (1 << 24)) { tcg_gen_addi_i32(addr, addr, 4); } else { tcg_gen_addi_i32(addr, addr, -4); } store_reg(s, rn, addr); } else { dead_tmp(addr); } gen_rfe(s, tmp, tmp2); } else { /* srs */ op = (insn & 0x1f); if (op == (env->uncached_cpsr & CPSR_M)) { addr = load_reg(s, 13); } else { addr = new_tmp(); tmp = tcg_const_i32(op); gen_helper_get_r13_banked(addr, cpu_env, tmp); tcg_temp_free_i32(tmp); } if ((insn & (1 << 24)) == 0) { tcg_gen_addi_i32(addr, addr, -8); } tmp = load_reg(s, 14); gen_st32(tmp, addr, 0); tcg_gen_addi_i32(addr, addr, 4); tmp = new_tmp(); gen_helper_cpsr_read(tmp); gen_st32(tmp, addr, 0); if (insn & (1 << 21)) { if ((insn & (1 << 24)) == 0) { tcg_gen_addi_i32(addr, addr, -4); } else { tcg_gen_addi_i32(addr, addr, 4); } if (op == (env->uncached_cpsr & CPSR_M)) { store_reg(s, 13, addr); } else { tmp = tcg_const_i32(op); gen_helper_set_r13_banked(cpu_env, tmp, addr); tcg_temp_free_i32(tmp); } } else { dead_tmp(addr); } } } else { int i; /* Load/store multiple. */ addr = load_reg(s, rn); offset = 0; for (i = 0; i < 16; i++) { if (insn & (1 << i)) offset += 4; } if (insn & (1 << 24)) { tcg_gen_addi_i32(addr, addr, -offset); } for (i = 0; i < 16; i++) { if ((insn & (1 << i)) == 0) continue; if (insn & (1 << 20)) { /* Load. */ tmp = gen_ld32(addr, IS_USER(s)); if (i == 15) { gen_bx(s, tmp); } else { store_reg(s, i, tmp); } } else { /* Store. */ tmp = load_reg(s, i); gen_st32(tmp, addr, IS_USER(s)); } tcg_gen_addi_i32(addr, addr, 4); } if (insn & (1 << 21)) { /* Base register writeback. */ if (insn & (1 << 24)) { tcg_gen_addi_i32(addr, addr, -offset); } /* Fault if writeback register is in register list. */ if (insn & (1 << rn)) goto illegal_op; store_reg(s, rn, addr); } else { dead_tmp(addr); } } } break; case 5: op = (insn >> 21) & 0xf; if (op == 6) { /* Halfword pack. */ tmp = load_reg(s, rn); tmp2 = load_reg(s, rm); shift = ((insn >> 10) & 0x1c) | ((insn >> 6) & 0x3); if (insn & (1 << 5)) { /* pkhtb */ if (shift == 0) shift = 31; tcg_gen_sari_i32(tmp2, tmp2, shift); tcg_gen_andi_i32(tmp, tmp, 0xffff0000); tcg_gen_ext16u_i32(tmp2, tmp2); } else { /* pkhbt */ if (shift) tcg_gen_shli_i32(tmp2, tmp2, shift); tcg_gen_ext16u_i32(tmp, tmp); tcg_gen_andi_i32(tmp2, tmp2, 0xffff0000); } tcg_gen_or_i32(tmp, tmp, tmp2); dead_tmp(tmp2); store_reg(s, rd, tmp); } else { /* Data processing register constant shift. */ if (rn == 15) { tmp = new_tmp(); tcg_gen_movi_i32(tmp, 0); } else { tmp = load_reg(s, rn); } tmp2 = load_reg(s, rm); shiftop = (insn >> 4) & 3; shift = ((insn >> 6) & 3) | ((insn >> 10) & 0x1c); conds = (insn & (1 << 20)) != 0; logic_cc = (conds && thumb2_logic_op(op)); gen_arm_shift_im(tmp2, shiftop, shift, logic_cc); if (gen_thumb2_data_op(s, op, conds, 0, tmp, tmp2)) goto illegal_op; dead_tmp(tmp2); if (rd != 15) { store_reg(s, rd, tmp); } else { dead_tmp(tmp); } } break; case 13: /* Misc data processing. */ op = ((insn >> 22) & 6) | ((insn >> 7) & 1); if (op < 4 && (insn & 0xf000) != 0xf000) goto illegal_op; switch (op) { case 0: /* Register controlled shift. */ tmp = load_reg(s, rn); tmp2 = load_reg(s, rm); if ((insn & 0x70) != 0) goto illegal_op; op = (insn >> 21) & 3; logic_cc = (insn & (1 << 20)) != 0; gen_arm_shift_reg(tmp, op, tmp2, logic_cc); if (logic_cc) gen_logic_CC(tmp); store_reg_bx(env, s, rd, tmp); break; case 1: /* Sign/zero extend. */ tmp = load_reg(s, rm); shift = (insn >> 4) & 3; /* ??? In many cases it's not neccessary to do a rotate, a shift is sufficient. */ if (shift != 0) tcg_gen_rotri_i32(tmp, tmp, shift * 8); op = (insn >> 20) & 7; switch (op) { case 0: gen_sxth(tmp); break; case 1: gen_uxth(tmp); break; case 2: gen_sxtb16(tmp); break; case 3: gen_uxtb16(tmp); break; case 4: gen_sxtb(tmp); break; case 5: gen_uxtb(tmp); break; default: goto illegal_op; } if (rn != 15) { tmp2 = load_reg(s, rn); if ((op >> 1) == 1) { gen_add16(tmp, tmp2); } else { tcg_gen_add_i32(tmp, tmp, tmp2); dead_tmp(tmp2); } } store_reg(s, rd, tmp); break; case 2: /* SIMD add/subtract. */ op = (insn >> 20) & 7; shift = (insn >> 4) & 7; if ((op & 3) == 3 || (shift & 3) == 3) goto illegal_op; tmp = load_reg(s, rn); tmp2 = load_reg(s, rm); gen_thumb2_parallel_addsub(op, shift, tmp, tmp2); dead_tmp(tmp2); store_reg(s, rd, tmp); break; case 3: /* Other data processing. */ op = ((insn >> 17) & 0x38) | ((insn >> 4) & 7); if (op < 4) { /* Saturating add/subtract. */ tmp = load_reg(s, rn); tmp2 = load_reg(s, rm); if (op & 1) gen_helper_double_saturate(tmp, tmp); if (op & 2) gen_helper_sub_saturate(tmp, tmp2, tmp); else gen_helper_add_saturate(tmp, tmp, tmp2); dead_tmp(tmp2); } else { tmp = load_reg(s, rn); switch (op) { case 0x0a: /* rbit */ gen_helper_rbit(tmp, tmp); break; case 0x08: /* rev */ tcg_gen_bswap32_i32(tmp, tmp); break; case 0x09: /* rev16 */ gen_rev16(tmp); break; case 0x0b: /* revsh */ gen_revsh(tmp); break; case 0x10: /* sel */ tmp2 = load_reg(s, rm); tmp3 = new_tmp(); tcg_gen_ld_i32(tmp3, cpu_env, offsetof(CPUState, GE)); gen_helper_sel_flags(tmp, tmp3, tmp, tmp2); dead_tmp(tmp3); dead_tmp(tmp2); break; case 0x18: /* clz */ gen_helper_clz(tmp, tmp); break; default: goto illegal_op; } } store_reg(s, rd, tmp); break; case 4: case 5: /* 32-bit multiply. Sum of absolute differences. */ op = (insn >> 4) & 0xf; tmp = load_reg(s, rn); tmp2 = load_reg(s, rm); switch ((insn >> 20) & 7) { case 0: /* 32 x 32 -> 32 */ tcg_gen_mul_i32(tmp, tmp, tmp2); dead_tmp(tmp2); if (rs != 15) { tmp2 = load_reg(s, rs); if (op) tcg_gen_sub_i32(tmp, tmp2, tmp); else tcg_gen_add_i32(tmp, tmp, tmp2); dead_tmp(tmp2); } break; case 1: /* 16 x 16 -> 32 */ gen_mulxy(tmp, tmp2, op & 2, op & 1); dead_tmp(tmp2); if (rs != 15) { tmp2 = load_reg(s, rs); gen_helper_add_setq(tmp, tmp, tmp2); dead_tmp(tmp2); } break; case 2: /* Dual multiply add. */ case 4: /* Dual multiply subtract. */ if (op) gen_swap_half(tmp2); gen_smul_dual(tmp, tmp2); /* This addition cannot overflow. */ if (insn & (1 << 22)) { tcg_gen_sub_i32(tmp, tmp, tmp2); } else { tcg_gen_add_i32(tmp, tmp, tmp2); } dead_tmp(tmp2); if (rs != 15) { tmp2 = load_reg(s, rs); gen_helper_add_setq(tmp, tmp, tmp2); dead_tmp(tmp2); } break; case 3: /* 32 * 16 -> 32msb */ if (op) tcg_gen_sari_i32(tmp2, tmp2, 16); else gen_sxth(tmp2); tmp64 = gen_muls_i64_i32(tmp, tmp2); tcg_gen_shri_i64(tmp64, tmp64, 16); tmp = new_tmp(); tcg_gen_trunc_i64_i32(tmp, tmp64); tcg_temp_free_i64(tmp64); if (rs != 15) { tmp2 = load_reg(s, rs); gen_helper_add_setq(tmp, tmp, tmp2); dead_tmp(tmp2); } break; case 5: case 6: /* 32 * 32 -> 32msb (SMMUL, SMMLA, SMMLS) */ tmp64 = gen_muls_i64_i32(tmp, tmp2); if (rs != 15) { tmp = load_reg(s, rs); if (insn & (1 << 20)) { tmp64 = gen_addq_msw(tmp64, tmp); } else { tmp64 = gen_subq_msw(tmp64, tmp); } } if (insn & (1 << 4)) { tcg_gen_addi_i64(tmp64, tmp64, 0x80000000u); } tcg_gen_shri_i64(tmp64, tmp64, 32); tmp = new_tmp(); tcg_gen_trunc_i64_i32(tmp, tmp64); tcg_temp_free_i64(tmp64); break; case 7: /* Unsigned sum of absolute differences. */ gen_helper_usad8(tmp, tmp, tmp2); dead_tmp(tmp2); if (rs != 15) { tmp2 = load_reg(s, rs); tcg_gen_add_i32(tmp, tmp, tmp2); dead_tmp(tmp2); } break; } store_reg(s, rd, tmp); break; case 6: case 7: /* 64-bit multiply, Divide. */ op = ((insn >> 4) & 0xf) | ((insn >> 16) & 0x70); tmp = load_reg(s, rn); tmp2 = load_reg(s, rm); if ((op & 0x50) == 0x10) { /* sdiv, udiv */ if (!arm_feature(env, ARM_FEATURE_DIV)) goto illegal_op; if (op & 0x20) gen_helper_udiv(tmp, tmp, tmp2); else gen_helper_sdiv(tmp, tmp, tmp2); dead_tmp(tmp2); store_reg(s, rd, tmp); } else if ((op & 0xe) == 0xc) { /* Dual multiply accumulate long. */ if (op & 1) gen_swap_half(tmp2); gen_smul_dual(tmp, tmp2); if (op & 0x10) { tcg_gen_sub_i32(tmp, tmp, tmp2); } else { tcg_gen_add_i32(tmp, tmp, tmp2); } dead_tmp(tmp2); /* BUGFIX */ tmp64 = tcg_temp_new_i64(); tcg_gen_ext_i32_i64(tmp64, tmp); dead_tmp(tmp); gen_addq(s, tmp64, rs, rd); gen_storeq_reg(s, rs, rd, tmp64); tcg_temp_free_i64(tmp64); } else { if (op & 0x20) { /* Unsigned 64-bit multiply */ tmp64 = gen_mulu_i64_i32(tmp, tmp2); } else { if (op & 8) { /* smlalxy */ gen_mulxy(tmp, tmp2, op & 2, op & 1); dead_tmp(tmp2); tmp64 = tcg_temp_new_i64(); tcg_gen_ext_i32_i64(tmp64, tmp); dead_tmp(tmp); } else { /* Signed 64-bit multiply */ tmp64 = gen_muls_i64_i32(tmp, tmp2); } } if (op & 4) { /* umaal */ gen_addq_lo(s, tmp64, rs); gen_addq_lo(s, tmp64, rd); } else if (op & 0x40) { /* 64-bit accumulate. */ gen_addq(s, tmp64, rs, rd); } gen_storeq_reg(s, rs, rd, tmp64); tcg_temp_free_i64(tmp64); } break; } break; case 6: case 7: case 14: case 15: /* Coprocessor. */ if (((insn >> 24) & 3) == 3) { /* Translate into the equivalent ARM encoding. */ insn = (insn & 0xe2ffffff) | ((insn & (1 << 28)) >> 4); if (disas_neon_data_insn(env, s, insn)) goto illegal_op; } else { if (insn & (1 << 28)) goto illegal_op; if (disas_coproc_insn (env, s, insn)) goto illegal_op; } break; case 8: case 9: case 10: case 11: if (insn & (1 << 15)) { /* Branches, misc control. */ if (insn & 0x5000) { /* Unconditional branch. */ /* signextend(hw1[10:0]) -> offset[:12]. */ offset = ((int32_t)insn << 5) >> 9 & ~(int32_t)0xfff; /* hw1[10:0] -> offset[11:1]. */ offset |= (insn & 0x7ff) << 1; /* (~hw2[13, 11] ^ offset[24]) -> offset[23,22] offset[24:22] already have the same value because of the sign extension above. */ offset ^= ((~insn) & (1 << 13)) << 10; offset ^= ((~insn) & (1 << 11)) << 11; if (insn & (1 << 14)) { /* Branch and link. */ tcg_gen_movi_i32(cpu_R[14], s->pc | 1); } offset += s->pc; if (insn & (1 << 12)) { /* b/bl */ gen_jmp(s, offset); } else { /* blx */ offset &= ~(uint32_t)2; gen_bx_im(s, offset); } } else if (((insn >> 23) & 7) == 7) { /* Misc control */ if (insn & (1 << 13)) goto illegal_op; if (insn & (1 << 26)) { /* Secure monitor call (v6Z) */ goto illegal_op; /* not implemented. */ } else { op = (insn >> 20) & 7; switch (op) { case 0: /* msr cpsr. */ if (IS_M(env)) { tmp = load_reg(s, rn); addr = tcg_const_i32(insn & 0xff); gen_helper_v7m_msr(cpu_env, addr, tmp); tcg_temp_free_i32(addr); dead_tmp(tmp); gen_lookup_tb(s); break; } /* fall through */ case 1: /* msr spsr. */ if (IS_M(env)) goto illegal_op; tmp = load_reg(s, rn); if (gen_set_psr(s, msr_mask(env, s, (insn >> 8) & 0xf, op == 1), op == 1, tmp)) goto illegal_op; break; case 2: /* cps, nop-hint. */ if (((insn >> 8) & 7) == 0) { gen_nop_hint(s, insn & 0xff); } /* Implemented as NOP in user mode. */ if (IS_USER(s)) break; offset = 0; imm = 0; if (insn & (1 << 10)) { if (insn & (1 << 7)) offset |= CPSR_A; if (insn & (1 << 6)) offset |= CPSR_I; if (insn & (1 << 5)) offset |= CPSR_F; if (insn & (1 << 9)) imm = CPSR_A | CPSR_I | CPSR_F; } if (insn & (1 << 8)) { offset |= 0x1f; imm |= (insn & 0x1f); } if (offset) { gen_set_psr_im(s, offset, 0, imm); } break; case 3: /* Special control operations. */ ARCH(7); op = (insn >> 4) & 0xf; switch (op) { case 2: /* clrex */ gen_clrex(s); break; case 4: /* dsb */ case 5: /* dmb */ case 6: /* isb */ /* These execute as NOPs. */ break; default: goto illegal_op; } break; case 4: /* bxj */ /* Trivial implementation equivalent to bx. */ tmp = load_reg(s, rn); gen_bx(s, tmp); break; case 5: /* Exception return. */ if (IS_USER(s)) { goto illegal_op; } if (rn != 14 || rd != 15) { goto illegal_op; } tmp = load_reg(s, rn); tcg_gen_subi_i32(tmp, tmp, insn & 0xff); gen_exception_return(s, tmp); break; case 6: /* mrs cpsr. */ tmp = new_tmp(); if (IS_M(env)) { addr = tcg_const_i32(insn & 0xff); gen_helper_v7m_mrs(tmp, cpu_env, addr); tcg_temp_free_i32(addr); } else { gen_helper_cpsr_read(tmp); } store_reg(s, rd, tmp); break; case 7: /* mrs spsr. */ /* Not accessible in user mode. */ if (IS_USER(s) || IS_M(env)) goto illegal_op; tmp = load_cpu_field(spsr); store_reg(s, rd, tmp); break; } } } else { /* Conditional branch. */ op = (insn >> 22) & 0xf; /* Generate a conditional jump to next instruction. */ s->condlabel = gen_new_label(); gen_test_cc(op ^ 1, s->condlabel); s->condjmp = 1; /* offset[11:1] = insn[10:0] */ offset = (insn & 0x7ff) << 1; /* offset[17:12] = insn[21:16]. */ offset |= (insn & 0x003f0000) >> 4; /* offset[31:20] = insn[26]. */ offset |= ((int32_t)((insn << 5) & 0x80000000)) >> 11; /* offset[18] = insn[13]. */ offset |= (insn & (1 << 13)) << 5; /* offset[19] = insn[11]. */ offset |= (insn & (1 << 11)) << 8; /* jump to the offset */ gen_jmp(s, s->pc + offset); } } else { /* Data processing immediate. */ if (insn & (1 << 25)) { if (insn & (1 << 24)) { if (insn & (1 << 20)) goto illegal_op; /* Bitfield/Saturate. */ op = (insn >> 21) & 7; imm = insn & 0x1f; shift = ((insn >> 6) & 3) | ((insn >> 10) & 0x1c); if (rn == 15) { tmp = new_tmp(); tcg_gen_movi_i32(tmp, 0); } else { tmp = load_reg(s, rn); } switch (op) { case 2: /* Signed bitfield extract. */ imm++; if (shift + imm > 32) goto illegal_op; if (imm < 32) gen_sbfx(tmp, shift, imm); break; case 6: /* Unsigned bitfield extract. */ imm++; if (shift + imm > 32) goto illegal_op; if (imm < 32) gen_ubfx(tmp, shift, (1u << imm) - 1); break; case 3: /* Bitfield insert/clear. */ if (imm < shift) goto illegal_op; imm = imm + 1 - shift; if (imm != 32) { tmp2 = load_reg(s, rd); gen_bfi(tmp, tmp2, tmp, shift, (1u << imm) - 1); dead_tmp(tmp2); } break; case 7: goto illegal_op; default: /* Saturate. */ if (shift) { if (op & 1) tcg_gen_sari_i32(tmp, tmp, shift); else tcg_gen_shli_i32(tmp, tmp, shift); } tmp2 = tcg_const_i32(imm); if (op & 4) { /* Unsigned. */ if ((op & 1) && shift == 0) gen_helper_usat16(tmp, tmp, tmp2); else gen_helper_usat(tmp, tmp, tmp2); } else { /* Signed. */ if ((op & 1) && shift == 0) gen_helper_ssat16(tmp, tmp, tmp2); else gen_helper_ssat(tmp, tmp, tmp2); } tcg_temp_free_i32(tmp2); break; } store_reg(s, rd, tmp); } else { imm = ((insn & 0x04000000) >> 15) | ((insn & 0x7000) >> 4) | (insn & 0xff); if (insn & (1 << 22)) { /* 16-bit immediate. */ imm |= (insn >> 4) & 0xf000; if (insn & (1 << 23)) { /* movt */ tmp = load_reg(s, rd); tcg_gen_ext16u_i32(tmp, tmp); tcg_gen_ori_i32(tmp, tmp, imm << 16); } else { /* movw */ tmp = new_tmp(); tcg_gen_movi_i32(tmp, imm); } } else { /* Add/sub 12-bit immediate. */ if (rn == 15) { offset = s->pc & ~(uint32_t)3; if (insn & (1 << 23)) offset -= imm; else offset += imm; tmp = new_tmp(); tcg_gen_movi_i32(tmp, offset); } else { tmp = load_reg(s, rn); if (insn & (1 << 23)) tcg_gen_subi_i32(tmp, tmp, imm); else tcg_gen_addi_i32(tmp, tmp, imm); } } store_reg(s, rd, tmp); } } else { int shifter_out = 0; /* modified 12-bit immediate. */ shift = ((insn & 0x04000000) >> 23) | ((insn & 0x7000) >> 12); imm = (insn & 0xff); switch (shift) { case 0: /* XY */ /* Nothing to do. */ break; case 1: /* 00XY00XY */ imm |= imm << 16; break; case 2: /* XY00XY00 */ imm |= imm << 16; imm <<= 8; break; case 3: /* XYXYXYXY */ imm |= imm << 16; imm |= imm << 8; break; default: /* Rotated constant. */ shift = (shift << 1) | (imm >> 7); imm |= 0x80; imm = imm << (32 - shift); shifter_out = 1; break; } tmp2 = new_tmp(); tcg_gen_movi_i32(tmp2, imm); rn = (insn >> 16) & 0xf; if (rn == 15) { tmp = new_tmp(); tcg_gen_movi_i32(tmp, 0); } else { tmp = load_reg(s, rn); } op = (insn >> 21) & 0xf; if (gen_thumb2_data_op(s, op, (insn & (1 << 20)) != 0, shifter_out, tmp, tmp2)) goto illegal_op; dead_tmp(tmp2); rd = (insn >> 8) & 0xf; if (rd != 15) { store_reg(s, rd, tmp); } else { dead_tmp(tmp); } } } break; case 12: /* Load/store single data item. */ { int postinc = 0; int writeback = 0; int user; if ((insn & 0x01100000) == 0x01000000) { if (disas_neon_ls_insn(env, s, insn)) goto illegal_op; break; } user = IS_USER(s); if (rn == 15) { addr = new_tmp(); /* PC relative. */ /* s->pc has already been incremented by 4. */ imm = s->pc & 0xfffffffc; if (insn & (1 << 23)) imm += insn & 0xfff; else imm -= insn & 0xfff; tcg_gen_movi_i32(addr, imm); } else { addr = load_reg(s, rn); if (insn & (1 << 23)) { /* Positive offset. */ imm = insn & 0xfff; tcg_gen_addi_i32(addr, addr, imm); } else { op = (insn >> 8) & 7; imm = insn & 0xff; switch (op) { case 0: case 8: /* Shifted Register. */ shift = (insn >> 4) & 0xf; if (shift > 3) goto illegal_op; tmp = load_reg(s, rm); if (shift) tcg_gen_shli_i32(tmp, tmp, shift); tcg_gen_add_i32(addr, addr, tmp); dead_tmp(tmp); break; case 4: /* Negative offset. */ tcg_gen_addi_i32(addr, addr, -imm); break; case 6: /* User privilege. */ tcg_gen_addi_i32(addr, addr, imm); user = 1; break; case 1: /* Post-decrement. */ imm = -imm; /* Fall through. */ case 3: /* Post-increment. */ postinc = 1; writeback = 1; break; case 5: /* Pre-decrement. */ imm = -imm; /* Fall through. */ case 7: /* Pre-increment. */ tcg_gen_addi_i32(addr, addr, imm); writeback = 1; break; default: goto illegal_op; } } } op = ((insn >> 21) & 3) | ((insn >> 22) & 4); if (insn & (1 << 20)) { /* Load. */ if (rs == 15 && op != 2) { if (op & 2) goto illegal_op; /* Memory hint. Implemented as NOP. */ } else { switch (op) { case 0: tmp = gen_ld8u(addr, user); break; case 4: tmp = gen_ld8s(addr, user); break; case 1: tmp = gen_ld16u(addr, user); break; case 5: tmp = gen_ld16s(addr, user); break; case 2: tmp = gen_ld32(addr, user); break; default: goto illegal_op; } if (rs == 15) { gen_bx(s, tmp); } else { store_reg(s, rs, tmp); } } } else { /* Store. */ if (rs == 15) goto illegal_op; tmp = load_reg(s, rs); switch (op) { case 0: gen_st8(tmp, addr, user); break; case 1: gen_st16(tmp, addr, user); break; case 2: gen_st32(tmp, addr, user); break; default: goto illegal_op; } } if (postinc) tcg_gen_addi_i32(addr, addr, imm); if (writeback) { store_reg(s, rn, addr); } else { dead_tmp(addr); } } break; default: goto illegal_op; } return 0; illegal_op: return 1; }

qemu

39ea3d4eaf1ff300ee55946108394729bc053dfa

size_t iov_to_buf(const struct iovec *iov, const unsigned int iov_cnt, size_t iov_off, void *buf, size_t size) { uint8_t *ptr; size_t iovec_off, buf_off; unsigned int i; ptr = buf; iovec_off = 0; buf_off = 0; for (i = 0; i < iov_cnt && size; i++) { if (iov_off < (iovec_off + iov[i].iov_len)) { size_t len = MIN((iovec_off + iov[i].iov_len) - iov_off , size); memcpy(ptr + buf_off, iov[i].iov_base + (iov_off - iovec_off), len); buf_off += len; iov_off += len; size -= len; } iovec_off += iov[i].iov_len; } return buf_off; }

qemu

2278a69e7020d86a8c73a28474e7709d3e7d5081

void hmp_savevm(Monitor *mon, const QDict *qdict) { BlockDriverState *bs, *bs1; QEMUSnapshotInfo sn1, *sn = &sn1, old_sn1, *old_sn = &old_sn1; int ret; QEMUFile *f; int saved_vm_running; uint64_t vm_state_size; qemu_timeval tv; struct tm tm; const char *name = qdict_get_try_str(qdict, "name"); Error *local_err = NULL; AioContext *aio_context; if (!bdrv_all_can_snapshot(&bs)) { monitor_printf(mon, "Device '%s' is writable but does not " "support snapshots.\n", bdrv_get_device_name(bs)); return; } /* Delete old snapshots of the same name */ if (name && bdrv_all_delete_snapshot(name, &bs1, &local_err) < 0) { error_reportf_err(local_err, "Error while deleting snapshot on device '%s': ", bdrv_get_device_name(bs1)); return; } bs = bdrv_all_find_vmstate_bs(); if (bs == NULL) { monitor_printf(mon, "No block device can accept snapshots\n"); return; } aio_context = bdrv_get_aio_context(bs); saved_vm_running = runstate_is_running(); ret = global_state_store(); if (ret) { monitor_printf(mon, "Error saving global state\n"); return; } vm_stop(RUN_STATE_SAVE_VM); aio_context_acquire(aio_context); memset(sn, 0, sizeof(*sn)); /* fill auxiliary fields */ qemu_gettimeofday(&tv); sn->date_sec = tv.tv_sec; sn->date_nsec = tv.tv_usec * 1000; sn->vm_clock_nsec = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); if (name) { ret = bdrv_snapshot_find(bs, old_sn, name); if (ret >= 0) { pstrcpy(sn->name, sizeof(sn->name), old_sn->name); pstrcpy(sn->id_str, sizeof(sn->id_str), old_sn->id_str); } else { pstrcpy(sn->name, sizeof(sn->name), name); } } else { /* cast below needed for OpenBSD where tv_sec is still 'long' */ localtime_r((const time_t *)&tv.tv_sec, &tm); strftime(sn->name, sizeof(sn->name), "vm-%Y%m%d%H%M%S", &tm); } /* save the VM state */ f = qemu_fopen_bdrv(bs, 1); if (!f) { monitor_printf(mon, "Could not open VM state file\n"); goto the_end; } ret = qemu_savevm_state(f, &local_err); vm_state_size = qemu_ftell(f); qemu_fclose(f); if (ret < 0) { error_report_err(local_err); goto the_end; } ret = bdrv_all_create_snapshot(sn, bs, vm_state_size, &bs); if (ret < 0) { monitor_printf(mon, "Error while creating snapshot on '%s'\n", bdrv_get_device_name(bs)); } the_end: aio_context_release(aio_context); if (saved_vm_running) { vm_start(); } }

qemu

ac8c19ba742fcbc3d64a5390b32acc6479edd7e1

static coroutine_fn int qcow2_co_pwritev(BlockDriverState *bs, uint64_t offset, uint64_t bytes, QEMUIOVector *qiov, int flags) { BDRVQcow2State *s = bs->opaque; int offset_in_cluster; int ret; unsigned int cur_bytes; /* number of sectors in current iteration */ uint64_t cluster_offset; QEMUIOVector hd_qiov; uint64_t bytes_done = 0; uint8_t *cluster_data = NULL; QCowL2Meta *l2meta = NULL; trace_qcow2_writev_start_req(qemu_coroutine_self(), offset, bytes); qemu_iovec_init(&hd_qiov, qiov->niov); s->cluster_cache_offset = -1; /* disable compressed cache */ qemu_co_mutex_lock(&s->lock); while (bytes != 0) { l2meta = NULL; trace_qcow2_writev_start_part(qemu_coroutine_self()); offset_in_cluster = offset_into_cluster(s, offset); cur_bytes = MIN(bytes, INT_MAX); if (bs->encrypted) { cur_bytes = MIN(cur_bytes, QCOW_MAX_CRYPT_CLUSTERS * s->cluster_size - offset_in_cluster); } ret = qcow2_alloc_cluster_offset(bs, offset, &cur_bytes, &cluster_offset, &l2meta); if (ret < 0) { goto fail; } assert((cluster_offset & 511) == 0); qemu_iovec_reset(&hd_qiov); qemu_iovec_concat(&hd_qiov, qiov, bytes_done, cur_bytes); if (bs->encrypted) { Error *err = NULL; assert(s->cipher); if (!cluster_data) { cluster_data = qemu_try_blockalign(bs->file->bs, QCOW_MAX_CRYPT_CLUSTERS * s->cluster_size); if (cluster_data == NULL) { ret = -ENOMEM; goto fail; } } assert(hd_qiov.size <= QCOW_MAX_CRYPT_CLUSTERS * s->cluster_size); qemu_iovec_to_buf(&hd_qiov, 0, cluster_data, hd_qiov.size); if (qcow2_encrypt_sectors(s, offset >> BDRV_SECTOR_BITS, cluster_data, cur_bytes >>BDRV_SECTOR_BITS, true, &err) < 0) { error_free(err); ret = -EIO; goto fail; } qemu_iovec_reset(&hd_qiov); qemu_iovec_add(&hd_qiov, cluster_data, cur_bytes); } ret = qcow2_pre_write_overlap_check(bs, 0, cluster_offset + offset_in_cluster, cur_bytes); if (ret < 0) { goto fail; } /* If we need to do COW, check if it's possible to merge the * writing of the guest data together with that of the COW regions. * If it's not possible (or not necessary) then write the * guest data now. */ if (!merge_cow(offset, cur_bytes, &hd_qiov, l2meta)) { qemu_co_mutex_unlock(&s->lock); BLKDBG_EVENT(bs->file, BLKDBG_WRITE_AIO); trace_qcow2_writev_data(qemu_coroutine_self(), cluster_offset + offset_in_cluster); ret = bdrv_co_pwritev(bs->file, cluster_offset + offset_in_cluster, cur_bytes, &hd_qiov, 0); qemu_co_mutex_lock(&s->lock); if (ret < 0) { goto fail; } } while (l2meta != NULL) { QCowL2Meta *next; ret = qcow2_alloc_cluster_link_l2(bs, l2meta); if (ret < 0) { goto fail; } /* Take the request off the list of running requests */ if (l2meta->nb_clusters != 0) { QLIST_REMOVE(l2meta, next_in_flight); } qemu_co_queue_restart_all(&l2meta->dependent_requests); next = l2meta->next; g_free(l2meta); l2meta = next; } bytes -= cur_bytes; offset += cur_bytes; bytes_done += cur_bytes; trace_qcow2_writev_done_part(qemu_coroutine_self(), cur_bytes); } ret = 0; fail: qemu_co_mutex_unlock(&s->lock); while (l2meta != NULL) { QCowL2Meta *next; if (l2meta->nb_clusters != 0) { QLIST_REMOVE(l2meta, next_in_flight); } qemu_co_queue_restart_all(&l2meta->dependent_requests); next = l2meta->next; g_free(l2meta); l2meta = next; } qemu_iovec_destroy(&hd_qiov); qemu_vfree(cluster_data); trace_qcow2_writev_done_req(qemu_coroutine_self(), ret); return ret; }

qemu

b25b387fa5928e516cb2c9e7fde68e958bd7e50a

static int open_self_maps(void *cpu_env, int fd) { #if defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_UNICORE32) CPUState *cpu = ENV_GET_CPU((CPUArchState *)cpu_env); TaskState *ts = cpu->opaque; #endif FILE *fp; char *line = NULL; size_t len = 0; ssize_t read; fp = fopen("/proc/self/maps", "r"); if (fp == NULL) { return -EACCES; } while ((read = getline(&line, &len, fp)) != -1) { int fields, dev_maj, dev_min, inode; uint64_t min, max, offset; char flag_r, flag_w, flag_x, flag_p; char path[512] = ""; fields = sscanf(line, "%"PRIx64"-%"PRIx64" %c%c%c%c %"PRIx64" %x:%x %d" " %512s", &min, &max, &flag_r, &flag_w, &flag_x, &flag_p, &offset, &dev_maj, &dev_min, &inode, path); if ((fields < 10) || (fields > 11)) { continue; } if (!strncmp(path, "[stack]", 7)) { continue; } if (h2g_valid(min) && h2g_valid(max)) { dprintf(fd, TARGET_ABI_FMT_lx "-" TARGET_ABI_FMT_lx " %c%c%c%c %08" PRIx64 " %02x:%02x %d %s%s\n", h2g(min), h2g(max), flag_r, flag_w, flag_x, flag_p, offset, dev_maj, dev_min, inode, path[0] ? " " : "", path); } } free(line); fclose(fp); #if defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_UNICORE32) dprintf(fd, "%08llx-%08llx rw-p %08llx 00:00 0 [stack]\n", (unsigned long long)ts->info->stack_limit, (unsigned long long)(ts->info->start_stack + (TARGET_PAGE_SIZE - 1)) & TARGET_PAGE_MASK, (unsigned long long)0); #endif return 0; }

qemu

d67f4aaae8379b44b3b51ff07df75f693012983c

static void qxl_log_cmd_draw(PCIQXLDevice *qxl, QXLDrawable *draw, int group_id) { fprintf(stderr, ": surface_id %d type %s effect %s", draw->surface_id, qxl_name(qxl_draw_type, draw->type), qxl_name(qxl_draw_effect, draw->effect)); switch (draw->type) { case QXL_DRAW_COPY: qxl_log_cmd_draw_copy(qxl, &draw->u.copy, group_id); break; } }

qemu

fae2afb10e3fdceab612c62a2b1e8b944ff578d9

int bdrv_enable_write_cache(BlockDriverState *bs) { return bs->enable_write_cache; }

qemu

61007b316cd71ee7333ff7a0a749a8949527575f

static int add_doubles_metadata(int count, const char *name, const char *sep, TiffContext *s) { char *ap; int i; double *dp; if (bytestream2_get_bytes_left(&s->gb) < count * sizeof(int64_t)) return -1; dp = av_malloc(count * sizeof(double)); if (!dp) return AVERROR(ENOMEM); for (i = 0; i < count; i++) dp[i] = tget_double(&s->gb, s->le); ap = doubles2str(dp, count, sep); av_freep(&dp); if (!ap) return AVERROR(ENOMEM); av_dict_set(&s->picture.metadata, name, ap, AV_DICT_DONT_STRDUP_VAL); return 0; }

FFmpeg

292850b634240045805e3c2001aed6f046034e93

static void device_set_realized(Object *obj, bool value, Error **errp) { DeviceState *dev = DEVICE(obj); DeviceClass *dc = DEVICE_GET_CLASS(dev); HotplugHandler *hotplug_ctrl; BusState *bus; Error *local_err = NULL; bool unattached_parent = false; static int unattached_count; if (dev->hotplugged && !dc->hotpluggable) { error_setg(errp, QERR_DEVICE_NO_HOTPLUG, object_get_typename(obj)); return; } if (value && !dev->realized) { if (!obj->parent) { gchar *name = g_strdup_printf("device[%d]", unattached_count++); object_property_add_child(container_get(qdev_get_machine(), "/unattached"), name, obj, &error_abort); unattached_parent = true; g_free(name); } hotplug_ctrl = qdev_get_hotplug_handler(dev); if (hotplug_ctrl) { hotplug_handler_pre_plug(hotplug_ctrl, dev, &local_err); if (local_err != NULL) { goto fail; } } if (dc->realize) { dc->realize(dev, &local_err); } if (local_err != NULL) { goto fail; } DEVICE_LISTENER_CALL(realize, Forward, dev); if (hotplug_ctrl) { hotplug_handler_plug(hotplug_ctrl, dev, &local_err); } if (local_err != NULL) { goto post_realize_fail; } if (qdev_get_vmsd(dev)) { vmstate_register_with_alias_id(dev, -1, qdev_get_vmsd(dev), dev, dev->instance_id_alias, dev->alias_required_for_version, NULL); } QLIST_FOREACH(bus, &dev->child_bus, sibling) { object_property_set_bool(OBJECT(bus), true, "realized", &local_err); if (local_err != NULL) { goto child_realize_fail; } } if (dev->hotplugged) { device_reset(dev); } dev->pending_deleted_event = false; } else if (!value && dev->realized) { Error **local_errp = NULL; QLIST_FOREACH(bus, &dev->child_bus, sibling) { local_errp = local_err ? NULL : &local_err; object_property_set_bool(OBJECT(bus), false, "realized", local_errp); } if (qdev_get_vmsd(dev)) { vmstate_unregister(dev, qdev_get_vmsd(dev), dev); } if (dc->unrealize) { local_errp = local_err ? NULL : &local_err; dc->unrealize(dev, local_errp); } dev->pending_deleted_event = true; DEVICE_LISTENER_CALL(unrealize, Reverse, dev); } if (local_err != NULL) { goto fail; } dev->realized = value; return; child_realize_fail: QLIST_FOREACH(bus, &dev->child_bus, sibling) { object_property_set_bool(OBJECT(bus), false, "realized", NULL); } if (qdev_get_vmsd(dev)) { vmstate_unregister(dev, qdev_get_vmsd(dev), dev); } post_realize_fail: if (dc->unrealize) { dc->unrealize(dev, NULL); } fail: error_propagate(errp, local_err); if (unattached_parent) { object_unparent(OBJECT(dev)); unattached_count--; } }

qemu

67980031d234aa90524b83bb80bb5d1601d29076

static void serial_update_irq(SerialState *s) { uint8_t tmp_iir = UART_IIR_NO_INT; if ((s->ier & UART_IER_RLSI) && (s->lsr & UART_LSR_INT_ANY)) { tmp_iir = UART_IIR_RLSI; } else if ((s->ier & UART_IER_RDI) && s->timeout_ipending) { /* Note that(s->ier & UART_IER_RDI) can mask this interrupt, * this is not in the specification but is observed on existing * hardware. */ tmp_iir = UART_IIR_CTI; } else if ((s->ier & UART_IER_RDI) && (s->lsr & UART_LSR_DR)) { if (!(s->fcr & UART_FCR_FE)) { tmp_iir = UART_IIR_RDI; } else if (s->recv_fifo.count >= s->recv_fifo.itl) { tmp_iir = UART_IIR_RDI; } } else if ((s->ier & UART_IER_THRI) && s->thr_ipending) { tmp_iir = UART_IIR_THRI; } else if ((s->ier & UART_IER_MSI) && (s->msr & UART_MSR_ANY_DELTA)) { tmp_iir = UART_IIR_MSI; } s->iir = tmp_iir | (s->iir & 0xF0); if (tmp_iir != UART_IIR_NO_INT) { qemu_irq_raise(s->irq); } else { qemu_irq_lower(s->irq); } }

qemu

2d6ee8e7e17227d5eb8c6e9a054dd88d5b37c5ae

static void spapr_add_lmbs(DeviceState *dev, uint64_t addr_start, uint64_t size, uint32_t node, bool dedicated_hp_event_source, Error **errp) { sPAPRDRConnector *drc; uint32_t nr_lmbs = size/SPAPR_MEMORY_BLOCK_SIZE; int i, fdt_offset, fdt_size; void *fdt; uint64_t addr = addr_start; for (i = 0; i < nr_lmbs; i++) { drc = spapr_drc_by_id(TYPE_SPAPR_DRC_LMB, addr / SPAPR_MEMORY_BLOCK_SIZE); g_assert(drc); fdt = create_device_tree(&fdt_size); fdt_offset = spapr_populate_memory_node(fdt, node, addr, SPAPR_MEMORY_BLOCK_SIZE); spapr_drc_attach(drc, dev, fdt, fdt_offset, !dev->hotplugged, errp); addr += SPAPR_MEMORY_BLOCK_SIZE; if (!dev->hotplugged) { sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); /* guests expect coldplugged LMBs to be pre-allocated */ drck->set_allocation_state(drc, SPAPR_DR_ALLOCATION_STATE_USABLE); drck->set_isolation_state(drc, SPAPR_DR_ISOLATION_STATE_UNISOLATED); } } /* send hotplug notification to the * guest only in case of hotplugged memory */ if (dev->hotplugged) { if (dedicated_hp_event_source) { drc = spapr_drc_by_id(TYPE_SPAPR_DRC_LMB, addr_start / SPAPR_MEMORY_BLOCK_SIZE); spapr_hotplug_req_add_by_count_indexed(SPAPR_DR_CONNECTOR_TYPE_LMB, nr_lmbs, spapr_drc_index(drc)); } else { spapr_hotplug_req_add_by_count(SPAPR_DR_CONNECTOR_TYPE_LMB, nr_lmbs); } } }

qemu

4f9242fc931ab5e5b1b753c8e5a76c50c0b0612e

static int vdi_open(BlockDriverState *bs, int flags) { BDRVVdiState *s = bs->opaque; VdiHeader header; size_t bmap_size; int ret; logout("\n"); ret = bdrv_read(bs->file, 0, (uint8_t *)&header, 1); if (ret < 0) { goto fail; } vdi_header_to_cpu(&header); #if defined(CONFIG_VDI_DEBUG) vdi_header_print(&header); #endif if (header.disk_size % SECTOR_SIZE != 0) { /* 'VBoxManage convertfromraw' can create images with odd disk sizes. We accept them but round the disk size to the next multiple of SECTOR_SIZE. */ logout("odd disk size %" PRIu64 " B, round up\n", header.disk_size); header.disk_size += SECTOR_SIZE - 1; header.disk_size &= ~(SECTOR_SIZE - 1); } if (header.version != VDI_VERSION_1_1) { logout("unsupported version %u.%u\n", header.version >> 16, header.version & 0xffff); ret = -ENOTSUP; goto fail; } else if (header.offset_bmap % SECTOR_SIZE != 0) { /* We only support block maps which start on a sector boundary. */ logout("unsupported block map offset 0x%x B\n", header.offset_bmap); ret = -ENOTSUP; goto fail; } else if (header.offset_data % SECTOR_SIZE != 0) { /* We only support data blocks which start on a sector boundary. */ logout("unsupported data offset 0x%x B\n", header.offset_data); ret = -ENOTSUP; goto fail; } else if (header.sector_size != SECTOR_SIZE) { logout("unsupported sector size %u B\n", header.sector_size); ret = -ENOTSUP; goto fail; } else if (header.block_size != 1 * MiB) { logout("unsupported block size %u B\n", header.block_size); ret = -ENOTSUP; goto fail; } else if (header.disk_size > (uint64_t)header.blocks_in_image * header.block_size) { logout("unsupported disk size %" PRIu64 " B\n", header.disk_size); ret = -ENOTSUP; goto fail; } else if (!uuid_is_null(header.uuid_link)) { logout("link uuid != 0, unsupported\n"); ret = -ENOTSUP; goto fail; } else if (!uuid_is_null(header.uuid_parent)) { logout("parent uuid != 0, unsupported\n"); ret = -ENOTSUP; goto fail; } bs->total_sectors = header.disk_size / SECTOR_SIZE; s->block_size = header.block_size; s->block_sectors = header.block_size / SECTOR_SIZE; s->bmap_sector = header.offset_bmap / SECTOR_SIZE; s->header = header; bmap_size = header.blocks_in_image * sizeof(uint32_t); bmap_size = (bmap_size + SECTOR_SIZE - 1) / SECTOR_SIZE; if (bmap_size > 0) { s->bmap = g_malloc(bmap_size * SECTOR_SIZE); } ret = bdrv_read(bs->file, s->bmap_sector, (uint8_t *)s->bmap, bmap_size); if (ret < 0) { goto fail_free_bmap; } /* Disable migration when vdi images are used */ error_set(&s->migration_blocker, QERR_BLOCK_FORMAT_FEATURE_NOT_SUPPORTED, "vdi", bs->device_name, "live migration"); migrate_add_blocker(s->migration_blocker); return 0; fail_free_bmap: g_free(s->bmap); fail: return ret; }

qemu

0e87ba2ccbf900cc5a56b95e0671e5a5d2c2f6a0

qemu_irq isa_reserve_irq(int isairq) { if (isairq < 0 || isairq > 15) { hw_error("isa irq %d invalid", isairq); } if (isabus->assigned & (1 << isairq)) { hw_error("isa irq %d already assigned", isairq); } isabus->assigned |= (1 << isairq); return isabus->irqs[isairq]; }

qemu

ee951a37d8873bff7aa58e23222dfd984111b6cb

S390CPU *cpu_s390x_create(const char *cpu_model, Error **errp) { static bool features_parsed; char *name, *features; const char *typename; ObjectClass *oc; CPUClass *cc; name = g_strdup(cpu_model); features = strchr(name, ','); if (features) { features[0] = 0; features++; } oc = cpu_class_by_name(TYPE_S390_CPU, name); if (!oc) { error_setg(errp, "Unknown CPU definition \'%s\'", name); g_free(name); return NULL; } typename = object_class_get_name(oc); if (!features_parsed) { features_parsed = true; cc = CPU_CLASS(oc); cc->parse_features(typename, features, errp); } g_free(name); if (*errp) { return NULL; } return S390_CPU(CPU(object_new(typename))); }

qemu

524d18d8bd463431b120eeb5f9f3d1064a1c19e4

static inline void pit_load_count(PITChannelState *s, int val) { if (val == 0) val = 0x10000; s->count_load_time = cpu_get_ticks(); s->count_last_edge_check_time = s->count_load_time; s->count = val; if (s == &pit_channels[0] && val <= pit_min_timer_count) { fprintf(stderr, "\nWARNING: qemu: on your system, accurate timer emulation is impossible if its frequency is more than %d Hz. If using a 2.5.xx Linux kernel, you must patch asm/param.h to change HZ from 1000 to 100.\n\n", PIT_FREQ / pit_min_timer_count); } }

qemu

bb551faa4ac8a798df9757c0ae26893041344bc3

static int usbredir_handle_bulk_data(USBRedirDevice *dev, USBPacket *p, uint8_t ep) { AsyncURB *aurb = async_alloc(dev, p); struct usb_redir_bulk_packet_header bulk_packet; DPRINTF("bulk-out ep %02X len %zd id %u\n", ep, p->iov.size, aurb->packet_id); bulk_packet.endpoint = ep; bulk_packet.length = p->iov.size; bulk_packet.stream_id = 0; aurb->bulk_packet = bulk_packet; if (ep & USB_DIR_IN) { usbredirparser_send_bulk_packet(dev->parser, aurb->packet_id, &bulk_packet, NULL, 0); } else { uint8_t buf[p->iov.size]; usb_packet_copy(p, buf, p->iov.size); usbredir_log_data(dev, "bulk data out:", buf, p->iov.size); usbredirparser_send_bulk_packet(dev->parser, aurb->packet_id, &bulk_packet, buf, p->iov.size); } usbredirparser_do_write(dev->parser); return USB_RET_ASYNC; }

qemu

104981d52b63dc3d68f39d4442881c667f44bbb9

static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt) { const uint8_t *buf = avpkt->data; int buf_size = avpkt->size; C93DecoderContext * const c93 = avctx->priv_data; AVFrame * const newpic = &c93->pictures[c93->currentpic]; AVFrame * const oldpic = &c93->pictures[c93->currentpic^1]; AVFrame *picture = data; uint8_t *out; int stride, i, x, y, bt = 0; c93->currentpic ^= 1; newpic->reference = 1; newpic->buffer_hints = FF_BUFFER_HINTS_VALID | FF_BUFFER_HINTS_PRESERVE | FF_BUFFER_HINTS_REUSABLE | FF_BUFFER_HINTS_READABLE; if (avctx->reget_buffer(avctx, newpic)) { av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n"); return -1; } stride = newpic->linesize[0]; if (buf[0] & C93_FIRST_FRAME) { newpic->pict_type = AV_PICTURE_TYPE_I; newpic->key_frame = 1; } else { newpic->pict_type = AV_PICTURE_TYPE_P; newpic->key_frame = 0; } if (*buf++ & C93_HAS_PALETTE) { uint32_t *palette = (uint32_t *) newpic->data[1]; const uint8_t *palbuf = buf + buf_size - 768 - 1; for (i = 0; i < 256; i++) { palette[i] = bytestream_get_be24(&palbuf); } } else { if (oldpic->data[1]) memcpy(newpic->data[1], oldpic->data[1], 256 * 4); } for (y = 0; y < HEIGHT; y += 8) { out = newpic->data[0] + y * stride; for (x = 0; x < WIDTH; x += 8) { uint8_t *copy_from = oldpic->data[0]; unsigned int offset, j; uint8_t cols[4], grps[4]; C93BlockType block_type; if (!bt) bt = *buf++; block_type= bt & 0x0F; switch (block_type) { case C93_8X8_FROM_PREV: offset = bytestream_get_le16(&buf); if (copy_block(avctx, out, copy_from, offset, 8, stride)) return -1; break; case C93_4X4_FROM_CURR: copy_from = newpic->data[0]; case C93_4X4_FROM_PREV: for (j = 0; j < 8; j += 4) { for (i = 0; i < 8; i += 4) { offset = bytestream_get_le16(&buf); if (copy_block(avctx, &out[j*stride+i], copy_from, offset, 4, stride)) return -1; } } break; case C93_8X8_2COLOR: bytestream_get_buffer(&buf, cols, 2); for (i = 0; i < 8; i++) { draw_n_color(out + i*stride, stride, 8, 1, 1, cols, NULL, *buf++); } break; case C93_4X4_2COLOR: case C93_4X4_4COLOR: case C93_4X4_4COLOR_GRP: for (j = 0; j < 8; j += 4) { for (i = 0; i < 8; i += 4) { if (block_type == C93_4X4_2COLOR) { bytestream_get_buffer(&buf, cols, 2); draw_n_color(out + i + j*stride, stride, 4, 4, 1, cols, NULL, bytestream_get_le16(&buf)); } else if (block_type == C93_4X4_4COLOR) { bytestream_get_buffer(&buf, cols, 4); draw_n_color(out + i + j*stride, stride, 4, 4, 2, cols, NULL, bytestream_get_le32(&buf)); } else { bytestream_get_buffer(&buf, grps, 4); draw_n_color(out + i + j*stride, stride, 4, 4, 1, cols, grps, bytestream_get_le16(&buf)); } } } break; case C93_NOOP: break; case C93_8X8_INTRA: for (j = 0; j < 8; j++) bytestream_get_buffer(&buf, out + j*stride, 8); break; default: av_log(avctx, AV_LOG_ERROR, "unexpected type %x at %dx%d\n", block_type, x, y); return -1; } bt >>= 4; out += 8; } } *picture = *newpic; *data_size = sizeof(AVFrame); return buf_size; }

FFmpeg

85aded741e03b17b0cc5c588b1f5acbcb25d7996

static int filter_frame(AVFilterLink *inlink, AVFilterBufferRef *in) { HQDN3DContext *hqdn3d = inlink->dst->priv; AVFilterLink *outlink = inlink->dst->outputs[0]; AVFilterBufferRef *out; int direct, c; if (in->perms & AV_PERM_WRITE) { direct = 1; out = in; } else { out = ff_get_video_buffer(outlink, AV_PERM_WRITE, outlink->w, outlink->h); if (!out) { avfilter_unref_bufferp(&in); return AVERROR(ENOMEM); } avfilter_copy_buffer_ref_props(out, in); out->video->w = outlink->w; out->video->h = outlink->h; } for (c = 0; c < 3; c++) { denoise(hqdn3d, in->data[c], out->data[c], hqdn3d->line, &hqdn3d->frame_prev[c], in->video->w >> (!!c * hqdn3d->hsub), in->video->h >> (!!c * hqdn3d->vsub), in->linesize[c], out->linesize[c], hqdn3d->coefs[c?2:0], hqdn3d->coefs[c?3:1]); } if (!direct) avfilter_unref_bufferp(&in); return ff_filter_frame(outlink, out); }

FFmpeg

9e1914dfbafb59b424a7c06cfdd324a85c33ef44

void *qemu_blockalign(BlockDriverState *bs, size_t size) { return qemu_memalign((bs && bs->buffer_alignment) ? bs->buffer_alignment : 512, size); }

qemu

339064d5063924e5176842abbf6c8089f3479c5b

static int ehci_fill_queue(EHCIPacket *p) { USBEndpoint *ep = p->packet.ep; EHCIQueue *q = p->queue; EHCIqtd qtd = p->qtd; uint32_t qtdaddr; for (;;) { if (NLPTR_TBIT(qtd.next) != 0) { qtdaddr = qtd.next; /* * Detect circular td lists, Windows creates these, counting on the * active bit going low after execution to make the queue stop. */ QTAILQ_FOREACH(p, &q->packets, next) { if (p->qtdaddr == qtdaddr) { goto leave; if (get_dwords(q->ehci, NLPTR_GET(qtdaddr), (uint32_t *) &qtd, sizeof(EHCIqtd) >> 2) < 0) { return -1; ehci_trace_qtd(q, NLPTR_GET(qtdaddr), &qtd); if (!(qtd.token & QTD_TOKEN_ACTIVE)) { p = ehci_alloc_packet(q); p->qtdaddr = qtdaddr; p->qtd = qtd; if (ehci_execute(p, "queue") == -1) { return -1; assert(p->packet.status == USB_RET_ASYNC); p->async = EHCI_ASYNC_INFLIGHT; leave: usb_device_flush_ep_queue(ep->dev, ep); return 1;

qemu

bbbc39ccacf66ef58261c155f9eed503947c3023

void bdrv_close(BlockDriverState *bs) { if (bs->drv) { if (bs->backing_hd) bdrv_delete(bs->backing_hd); bs->drv->bdrv_close(bs); qemu_free(bs->opaque); #ifdef _WIN32 if (bs->is_temporary) { unlink(bs->filename); } #endif bs->opaque = NULL; bs->drv = NULL; /* call the change callback */ bs->total_sectors = 0; bs->media_changed = 1; if (bs->change_cb) bs->change_cb(bs->change_opaque); } }

qemu

b5eff355460643d09e533024360fe0522f368c07

static int encode_block(SVQ1EncContext *s, uint8_t *src, uint8_t *ref, uint8_t *decoded, int stride, int level, int threshold, int lambda, int intra) { int count, y, x, i, j, split, best_mean, best_score, best_count; int best_vector[6]; int block_sum[7] = { 0, 0, 0, 0, 0, 0 }; int w = 2 << (level + 2 >> 1); int h = 2 << (level + 1 >> 1); int size = w * h; int16_t (*block)[256] = s->encoded_block_levels[level]; const int8_t *codebook_sum, *codebook; const uint16_t(*mean_vlc)[2]; const uint8_t(*multistage_vlc)[2]; best_score = 0; // FIXME: Optimize, this does not need to be done multiple times. if (intra) { codebook_sum = svq1_intra_codebook_sum[level]; codebook = ff_svq1_intra_codebooks[level]; mean_vlc = ff_svq1_intra_mean_vlc; multistage_vlc = ff_svq1_intra_multistage_vlc[level]; for (y = 0; y < h; y++) { for (x = 0; x < w; x++) { int v = src[x + y * stride]; block[0][x + w * y] = v; best_score += v * v; block_sum[0] += v; } } } else { codebook_sum = svq1_inter_codebook_sum[level]; codebook = ff_svq1_inter_codebooks[level]; mean_vlc = ff_svq1_inter_mean_vlc + 256; multistage_vlc = ff_svq1_inter_multistage_vlc[level]; for (y = 0; y < h; y++) { for (x = 0; x < w; x++) { int v = src[x + y * stride] - ref[x + y * stride]; block[0][x + w * y] = v; best_score += v * v; block_sum[0] += v; } } } best_count = 0; best_score -= (int)((unsigned)block_sum[0] * block_sum[0] >> (level + 3)); best_mean = block_sum[0] + (size >> 1) >> (level + 3); if (level < 4) { for (count = 1; count < 7; count++) { int best_vector_score = INT_MAX; int best_vector_sum = -999, best_vector_mean = -999; const int stage = count - 1; const int8_t *vector; for (i = 0; i < 16; i++) { int sum = codebook_sum[stage * 16 + i]; int sqr, diff, score; vector = codebook + stage * size * 16 + i * size; sqr = s->ssd_int8_vs_int16(vector, block[stage], size); diff = block_sum[stage] - sum; score = sqr - (diff * (int64_t)diff >> (level + 3)); // FIXME: 64bit slooow if (score < best_vector_score) { int mean = diff + (size >> 1) >> (level + 3); av_assert2(mean > -300 && mean < 300); mean = av_clip(mean, intra ? 0 : -256, 255); best_vector_score = score; best_vector[stage] = i; best_vector_sum = sum; best_vector_mean = mean; } } av_assert0(best_vector_mean != -999); vector = codebook + stage * size * 16 + best_vector[stage] * size; for (j = 0; j < size; j++) block[stage + 1][j] = block[stage][j] - vector[j]; block_sum[stage + 1] = block_sum[stage] - best_vector_sum; best_vector_score += lambda * (+1 + 4 * count + multistage_vlc[1 + count][1] + mean_vlc[best_vector_mean][1]); if (best_vector_score < best_score) { best_score = best_vector_score; best_count = count; best_mean = best_vector_mean; } } } split = 0; if (best_score > threshold && level) { int score = 0; int offset = level & 1 ? stride * h / 2 : w / 2; PutBitContext backup[6]; for (i = level - 1; i >= 0; i--) backup[i] = s->reorder_pb[i]; score += encode_block(s, src, ref, decoded, stride, level - 1, threshold >> 1, lambda, intra); score += encode_block(s, src + offset, ref + offset, decoded + offset, stride, level - 1, threshold >> 1, lambda, intra); score += lambda; if (score < best_score) { best_score = score; split = 1; } else { for (i = level - 1; i >= 0; i--) s->reorder_pb[i] = backup[i]; } } if (level > 0) put_bits(&s->reorder_pb[level], 1, split); if (!split) { av_assert1(best_mean >= 0 && best_mean < 256 || !intra); av_assert1(best_mean >= -256 && best_mean < 256); av_assert1(best_count >= 0 && best_count < 7); av_assert1(level < 4 || best_count == 0); /* output the encoding */ put_bits(&s->reorder_pb[level], multistage_vlc[1 + best_count][1], multistage_vlc[1 + best_count][0]); put_bits(&s->reorder_pb[level], mean_vlc[best_mean][1], mean_vlc[best_mean][0]); for (i = 0; i < best_count; i++) { av_assert2(best_vector[i] >= 0 && best_vector[i] < 16); put_bits(&s->reorder_pb[level], 4, best_vector[i]); } for (y = 0; y < h; y++) for (x = 0; x < w; x++) decoded[x + y * stride] = src[x + y * stride] - block[best_count][x + w * y] + best_mean; } return best_score; }

FFmpeg

9079e99d2c462ec7ef2e89d9e77ee6c3553dacce

void bdrv_attach_aio_context(BlockDriverState *bs, AioContext *new_context) { BdrvAioNotifier *ban; BdrvChild *child; if (!bs->drv) { return; } bs->aio_context = new_context; QLIST_FOREACH(child, &bs->children, next) { bdrv_attach_aio_context(child->bs, new_context); } if (bs->drv->bdrv_attach_aio_context) { bs->drv->bdrv_attach_aio_context(bs, new_context); } QLIST_FOREACH(ban, &bs->aio_notifiers, list) { ban->attached_aio_context(new_context, ban->opaque); } }

qemu

e8a095dadb70e2ea6d5169d261920db3747bfa45

static inline CopyRet copy_frame(AVCodecContext *avctx, BC_DTS_PROC_OUT *output, void *data, int *data_size) { BC_STATUS ret; BC_DTS_STATUS decoder_status = { 0, }; uint8_t trust_interlaced; uint8_t interlaced; CHDContext *priv = avctx->priv_data; int64_t pkt_pts = AV_NOPTS_VALUE; uint8_t pic_type = 0; uint8_t bottom_field = (output->PicInfo.flags & VDEC_FLAG_BOTTOMFIELD) == VDEC_FLAG_BOTTOMFIELD; uint8_t bottom_first = !!(output->PicInfo.flags & VDEC_FLAG_BOTTOM_FIRST); int width = output->PicInfo.width; int height = output->PicInfo.height; int bwidth; uint8_t *src = output->Ybuff; int sStride; uint8_t *dst; int dStride; if (output->PicInfo.timeStamp != 0) { OpaqueList *node = opaque_list_pop(priv, output->PicInfo.timeStamp); if (node) { pkt_pts = node->reordered_opaque; pic_type = node->pic_type; av_free(node); } else { /* * We will encounter a situation where a timestamp cannot be * popped if a second field is being returned. In this case, * each field has the same timestamp and the first one will * cause it to be popped. To keep subsequent calculations * simple, pic_type should be set a FIELD value - doesn't * matter which, but I chose BOTTOM. */ pic_type = PICT_BOTTOM_FIELD; } av_log(avctx, AV_LOG_VERBOSE, "output \"pts\": %"PRIu64"\n", output->PicInfo.timeStamp); av_log(avctx, AV_LOG_VERBOSE, "output picture type %d\n", pic_type); } ret = DtsGetDriverStatus(priv->dev, &decoder_status); if (ret != BC_STS_SUCCESS) { av_log(avctx, AV_LOG_ERROR, "CrystalHD: GetDriverStatus failed: %u\n", ret); return RET_ERROR; } /* * For most content, we can trust the interlaced flag returned * by the hardware, but sometimes we can't. These are the * conditions under which we can trust the flag: * * 1) It's not h.264 content * 2) The UNKNOWN_SRC flag is not set * 3) We know we're expecting a second field * 4) The hardware reports this picture and the next picture * have the same picture number. * * Note that there can still be interlaced content that will * fail this check, if the hardware hasn't decoded the next * picture or if there is a corruption in the stream. (In either * case a 0 will be returned for the next picture number) */ trust_interlaced = avctx->codec->id != CODEC_ID_H264 || !(output->PicInfo.flags & VDEC_FLAG_UNKNOWN_SRC) || priv->need_second_field || (decoder_status.picNumFlags & ~0x40000000) == output->PicInfo.picture_number; /* * If we got a false negative for trust_interlaced on the first field, * we will realise our mistake here when we see that the picture number is that * of the previous picture. We cannot recover the frame and should discard the * second field to keep the correct number of output frames. */ if (output->PicInfo.picture_number == priv->last_picture && !priv->need_second_field) { av_log(avctx, AV_LOG_WARNING, "Incorrectly guessed progressive frame. Discarding second field\n"); /* Returning without providing a picture. */ return RET_OK; } interlaced = (output->PicInfo.flags & VDEC_FLAG_INTERLACED_SRC) && trust_interlaced; if (!trust_interlaced && (decoder_status.picNumFlags & ~0x40000000) == 0) { av_log(avctx, AV_LOG_VERBOSE, "Next picture number unknown. Assuming progressive frame.\n"); } av_log(avctx, AV_LOG_VERBOSE, "Interlaced state: %d | trust_interlaced %d\n", interlaced, trust_interlaced); if (priv->pic.data[0] && !priv->need_second_field) avctx->release_buffer(avctx, &priv->pic); priv->need_second_field = interlaced && !priv->need_second_field; priv->pic.buffer_hints = FF_BUFFER_HINTS_VALID | FF_BUFFER_HINTS_PRESERVE | FF_BUFFER_HINTS_REUSABLE; if (!priv->pic.data[0]) { if (avctx->get_buffer(avctx, &priv->pic) < 0) { av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); return RET_ERROR; } } bwidth = av_image_get_linesize(avctx->pix_fmt, width, 0); if (priv->is_70012) { int pStride; if (width <= 720) pStride = 720; else if (width <= 1280) pStride = 1280; else pStride = 1920; sStride = av_image_get_linesize(avctx->pix_fmt, pStride, 0); } else { sStride = bwidth; } dStride = priv->pic.linesize[0]; dst = priv->pic.data[0]; av_log(priv->avctx, AV_LOG_VERBOSE, "CrystalHD: Copying out frame\n"); if (interlaced) { int dY = 0; int sY = 0; height /= 2; if (bottom_field) { av_log(priv->avctx, AV_LOG_VERBOSE, "Interlaced: bottom field\n"); dY = 1; } else { av_log(priv->avctx, AV_LOG_VERBOSE, "Interlaced: top field\n"); dY = 0; } for (sY = 0; sY < height; dY++, sY++) { memcpy(&(dst[dY * dStride]), &(src[sY * sStride]), bwidth); dY++; } } else { av_image_copy_plane(dst, dStride, src, sStride, bwidth, height); } priv->pic.interlaced_frame = interlaced; if (interlaced) priv->pic.top_field_first = !bottom_first; priv->pic.pkt_pts = pkt_pts; if (!priv->need_second_field) { *data_size = sizeof(AVFrame); *(AVFrame *)data = priv->pic; } /* * Two types of PAFF content have been observed. One form causes the * hardware to return a field pair and the other individual fields, * even though the input is always individual fields. We must skip * copying on the next decode() call to maintain pipeline length in * the first case. */ if (!interlaced && (output->PicInfo.flags & VDEC_FLAG_UNKNOWN_SRC) && (pic_type == PICT_TOP_FIELD || pic_type == PICT_BOTTOM_FIELD)) { av_log(priv->avctx, AV_LOG_VERBOSE, "Fieldpair from two packets.\n"); return RET_SKIP_NEXT_COPY; } /* * Testing has shown that in all cases where we don't want to return the * full frame immediately, VDEC_FLAG_UNKNOWN_SRC is set. */ return priv->need_second_field && !(output->PicInfo.flags & VDEC_FLAG_UNKNOWN_SRC) ? RET_COPY_NEXT_FIELD : RET_OK; }

FFmpeg

d1ac8e10340f30b6989cfd64ed1f91dae5a54e2d

static inline uint16_t vring_avail_flags(VirtQueue *vq) { VRingMemoryRegionCaches *caches = atomic_rcu_read(&vq->vring.caches); hwaddr pa = offsetof(VRingAvail, flags); return virtio_lduw_phys_cached(vq->vdev, &caches->avail, pa); }

qemu

e0e2d644096c79a71099b176d08f465f6803a8b1

static void ppc_spapr_init(MachineState *machine) { ram_addr_t ram_size = machine->ram_size; const char *cpu_model = machine->cpu_model; const char *kernel_filename = machine->kernel_filename; const char *kernel_cmdline = machine->kernel_cmdline; const char *initrd_filename = machine->initrd_filename; const char *boot_device = machine->boot_order; PowerPCCPU *cpu; CPUPPCState *env; PCIHostState *phb; int i; MemoryRegion *sysmem = get_system_memory(); MemoryRegion *ram = g_new(MemoryRegion, 1); MemoryRegion *rma_region; void *rma = NULL; hwaddr rma_alloc_size; hwaddr node0_size = spapr_node0_size(); uint32_t initrd_base = 0; long kernel_size = 0, initrd_size = 0; long load_limit, rtas_limit, fw_size; bool kernel_le = false; char *filename; msi_supported = true; spapr = g_malloc0(sizeof(*spapr)); QLIST_INIT(&spapr->phbs); cpu_ppc_hypercall = emulate_spapr_hypercall; /* Allocate RMA if necessary */ rma_alloc_size = kvmppc_alloc_rma(&rma); if (rma_alloc_size == -1) { hw_error("qemu: Unable to create RMA\n"); exit(1); } if (rma_alloc_size && (rma_alloc_size < node0_size)) { spapr->rma_size = rma_alloc_size; } else { spapr->rma_size = node0_size; /* With KVM, we don't actually know whether KVM supports an * unbounded RMA (PR KVM) or is limited by the hash table size * (HV KVM using VRMA), so we always assume the latter * * In that case, we also limit the initial allocations for RTAS * etc... to 256M since we have no way to know what the VRMA size * is going to be as it depends on the size of the hash table * isn't determined yet. */ if (kvm_enabled()) { spapr->vrma_adjust = 1; spapr->rma_size = MIN(spapr->rma_size, 0x10000000); } } if (spapr->rma_size > node0_size) { fprintf(stderr, "Error: Numa node 0 has to span the RMA (%#08"HWADDR_PRIx")\n", spapr->rma_size); exit(1); } /* We place the device tree and RTAS just below either the top of the RMA, * or just below 2GB, whichever is lowere, so that it can be * processed with 32-bit real mode code if necessary */ rtas_limit = MIN(spapr->rma_size, 0x80000000); spapr->rtas_addr = rtas_limit - RTAS_MAX_SIZE; spapr->fdt_addr = spapr->rtas_addr - FDT_MAX_SIZE; load_limit = spapr->fdt_addr - FW_OVERHEAD; /* We aim for a hash table of size 1/128 the size of RAM. The * normal rule of thumb is 1/64 the size of RAM, but that's much * more than needed for the Linux guests we support. */ spapr->htab_shift = 18; /* Minimum architected size */ while (spapr->htab_shift <= 46) { if ((1ULL << (spapr->htab_shift + 7)) >= ram_size) { break; } spapr->htab_shift++; } /* Set up Interrupt Controller before we create the VCPUs */ spapr->icp = xics_system_init(smp_cpus * kvmppc_smt_threads() / smp_threads, XICS_IRQS); /* init CPUs */ if (cpu_model == NULL) { cpu_model = kvm_enabled() ? "host" : "POWER7"; } for (i = 0; i < smp_cpus; i++) { cpu = cpu_ppc_init(cpu_model); if (cpu == NULL) { fprintf(stderr, "Unable to find PowerPC CPU definition\n"); exit(1); } env = &cpu->env; /* Set time-base frequency to 512 MHz */ cpu_ppc_tb_init(env, TIMEBASE_FREQ); /* PAPR always has exception vectors in RAM not ROM. To ensure this, * MSR[IP] should never be set. */ env->msr_mask &= ~(1 << 6); /* Tell KVM that we're in PAPR mode */ if (kvm_enabled()) { kvmppc_set_papr(cpu); } if (cpu->max_compat) { if (ppc_set_compat(cpu, cpu->max_compat) < 0) { exit(1); } } xics_cpu_setup(spapr->icp, cpu); qemu_register_reset(spapr_cpu_reset, cpu); } /* allocate RAM */ spapr->ram_limit = ram_size; memory_region_allocate_system_memory(ram, NULL, "ppc_spapr.ram", spapr->ram_limit); memory_region_add_subregion(sysmem, 0, ram); if (rma_alloc_size && rma) { rma_region = g_new(MemoryRegion, 1); memory_region_init_ram_ptr(rma_region, NULL, "ppc_spapr.rma", rma_alloc_size, rma); vmstate_register_ram_global(rma_region); memory_region_add_subregion(sysmem, 0, rma_region); } filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, "spapr-rtas.bin"); spapr->rtas_size = load_image_targphys(filename, spapr->rtas_addr, rtas_limit - spapr->rtas_addr); if (spapr->rtas_size < 0) { hw_error("qemu: could not load LPAR rtas '%s'\n", filename); exit(1); } if (spapr->rtas_size > RTAS_MAX_SIZE) { hw_error("RTAS too big ! 0x%lx bytes (max is 0x%x)\n", spapr->rtas_size, RTAS_MAX_SIZE); exit(1); } g_free(filename); /* Set up EPOW events infrastructure */ spapr_events_init(spapr); /* Set up VIO bus */ spapr->vio_bus = spapr_vio_bus_init(); for (i = 0; i < MAX_SERIAL_PORTS; i++) { if (serial_hds[i]) { spapr_vty_create(spapr->vio_bus, serial_hds[i]); } } /* We always have at least the nvram device on VIO */ spapr_create_nvram(spapr); /* Set up PCI */ spapr_pci_msi_init(spapr, SPAPR_PCI_MSI_WINDOW); spapr_pci_rtas_init(); phb = spapr_create_phb(spapr, 0); for (i = 0; i < nb_nics; i++) { NICInfo *nd = &nd_table[i]; if (!nd->model) { nd->model = g_strdup("ibmveth"); } if (strcmp(nd->model, "ibmveth") == 0) { spapr_vlan_create(spapr->vio_bus, nd); } else { pci_nic_init_nofail(&nd_table[i], phb->bus, nd->model, NULL); } } for (i = 0; i <= drive_get_max_bus(IF_SCSI); i++) { spapr_vscsi_create(spapr->vio_bus); } /* Graphics */ if (spapr_vga_init(phb->bus)) { spapr->has_graphics = true; } if (usb_enabled(spapr->has_graphics)) { pci_create_simple(phb->bus, -1, "pci-ohci"); if (spapr->has_graphics) { usbdevice_create("keyboard"); usbdevice_create("mouse"); } } if (spapr->rma_size < (MIN_RMA_SLOF << 20)) { fprintf(stderr, "qemu: pSeries SLOF firmware requires >= " "%ldM guest RMA (Real Mode Area memory)\n", MIN_RMA_SLOF); exit(1); } if (kernel_filename) { uint64_t lowaddr = 0; kernel_size = load_elf(kernel_filename, translate_kernel_address, NULL, NULL, &lowaddr, NULL, 1, ELF_MACHINE, 0); if (kernel_size == ELF_LOAD_WRONG_ENDIAN) { kernel_size = load_elf(kernel_filename, translate_kernel_address, NULL, NULL, &lowaddr, NULL, 0, ELF_MACHINE, 0); kernel_le = kernel_size > 0; } if (kernel_size < 0) { fprintf(stderr, "qemu: error loading %s: %s\n", kernel_filename, load_elf_strerror(kernel_size)); exit(1); } /* load initrd */ if (initrd_filename) { /* Try to locate the initrd in the gap between the kernel * and the firmware. Add a bit of space just in case */ initrd_base = (KERNEL_LOAD_ADDR + kernel_size + 0x1ffff) & ~0xffff; initrd_size = load_image_targphys(initrd_filename, initrd_base, load_limit - initrd_base); if (initrd_size < 0) { fprintf(stderr, "qemu: could not load initial ram disk '%s'\n", initrd_filename); exit(1); } } else { initrd_base = 0; initrd_size = 0; } } if (bios_name == NULL) { bios_name = FW_FILE_NAME; } filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name); fw_size = load_image_targphys(filename, 0, FW_MAX_SIZE); if (fw_size < 0) { hw_error("qemu: could not load LPAR rtas '%s'\n", filename); exit(1); } g_free(filename); spapr->entry_point = 0x100; vmstate_register(NULL, 0, &vmstate_spapr, spapr); register_savevm_live(NULL, "spapr/htab", -1, 1, &savevm_htab_handlers, spapr); /* Prepare the device tree */ spapr->fdt_skel = spapr_create_fdt_skel(initrd_base, initrd_size, kernel_size, kernel_le, boot_device, kernel_cmdline, spapr->epow_irq); assert(spapr->fdt_skel != NULL); }

qemu

b7d1f77adaab790d20232df261d4e2ff6a77f556

static int tta_read_header(AVFormatContext *s, AVFormatParameters *ap) { TTAContext *c = s->priv_data; AVStream *st; int i, channels, bps, samplerate, datalen, framelen, start; start = url_ftell(&s->pb); if (get_le32(&s->pb) != ff_get_fourcc("TTA1")) return -1; // not tta file url_fskip(&s->pb, 2); // FIXME: flags channels = get_le16(&s->pb); bps = get_le16(&s->pb); samplerate = get_le32(&s->pb); datalen = get_le32(&s->pb); url_fskip(&s->pb, 4); // header crc framelen = 1.04489795918367346939 * samplerate; c->totalframes = datalen / framelen + ((datalen % framelen) ? 1 : 0); c->currentframe = 0; c->seektable = av_mallocz(sizeof(uint32_t)*c->totalframes); if (!c->seektable) return AVERROR_NOMEM; for (i = 0; i < c->totalframes; i++) c->seektable[i] = get_le32(&s->pb); url_fskip(&s->pb, 4); // seektable crc st = av_new_stream(s, 0); // av_set_pts_info(st, 32, 1, 1000); if (!st) return AVERROR_NOMEM; st->codec->codec_type = CODEC_TYPE_AUDIO; st->codec->codec_id = CODEC_ID_TTA; st->codec->channels = channels; st->codec->sample_rate = samplerate; st->codec->bits_per_sample = bps; st->codec->extradata_size = url_ftell(&s->pb) - start; if(st->codec->extradata_size+FF_INPUT_BUFFER_PADDING_SIZE <= (unsigned)st->codec->extradata_size){ //this check is redundant as get_buffer should fail av_log(s, AV_LOG_ERROR, "extradata_size too large\n"); st->codec->extradata = av_mallocz(st->codec->extradata_size+FF_INPUT_BUFFER_PADDING_SIZE); url_fseek(&s->pb, start, SEEK_SET); // or SEEK_CUR and -size ? :) get_buffer(&s->pb, st->codec->extradata, st->codec->extradata_size); return 0;

FFmpeg

a443a2530d00b7019269202ac0f5ca8ba0a021c7

void kvm_flush_coalesced_mmio_buffer(void) { #ifdef KVM_CAP_COALESCED_MMIO KVMState *s = kvm_state; if (s->coalesced_mmio_ring) { struct kvm_coalesced_mmio_ring *ring = s->coalesced_mmio_ring; while (ring->first != ring->last) { struct kvm_coalesced_mmio *ent; ent = &ring->coalesced_mmio[ring->first]; cpu_physical_memory_write(ent->phys_addr, ent->data, ent->len); smp_wmb(); ring->first = (ring->first + 1) % KVM_COALESCED_MMIO_MAX; } } #endif }

qemu

94a8d39afd8ccfdbf578af04c3385fdb5f545af1

void in_asm_used_var_warning_killer() { volatile int i= yCoeff+vrCoeff+ubCoeff+vgCoeff+ugCoeff+bF8+bFC+w400+w80+w10+ bm00001111+bm00000111+bm11111000+b16Mask+g16Mask+r16Mask+b15Mask+g15Mask+r15Mask+temp0+asm_yalpha1+ asm_uvalpha1+ M24A+M24B+M24C+w02 + funnyYCode[0]+ funnyUVCode[0]+b5Dither+g5Dither+r5Dither+g6Dither+dither4[0]+dither8[0]; if(i) i=0; }

FFmpeg

28bf81c90d36a55cf76e2be913c5215ebebf61f2

static void vc1_inv_trans_4x8_dc_c(uint8_t *dest, int linesize, DCTELEM *block) { int i; int dc = block[0]; const uint8_t *cm; dc = (17 * dc + 4) >> 3; dc = (12 * dc + 64) >> 7; cm = ff_cropTbl + MAX_NEG_CROP + dc; for(i = 0; i < 8; i++){ dest[0] = cm[dest[0]]; dest[1] = cm[dest[1]]; dest[2] = cm[dest[2]]; dest[3] = cm[dest[3]]; dest += linesize; } }

FFmpeg

c23acbaed40101c677dfcfbbfe0d2c230a8e8f44

static void qxl_add_memslot(PCIQXLDevice *d, uint32_t slot_id, uint64_t delta, qxl_async_io async) { static const int regions[] = { QXL_RAM_RANGE_INDEX, QXL_VRAM_RANGE_INDEX, QXL_VRAM64_RANGE_INDEX, }; uint64_t guest_start; uint64_t guest_end; int pci_region; pcibus_t pci_start; pcibus_t pci_end; intptr_t virt_start; QXLDevMemSlot memslot; int i; guest_start = le64_to_cpu(d->guest_slots[slot_id].slot.mem_start); guest_end = le64_to_cpu(d->guest_slots[slot_id].slot.mem_end); trace_qxl_memslot_add_guest(d->id, slot_id, guest_start, guest_end); PANIC_ON(slot_id >= NUM_MEMSLOTS); PANIC_ON(guest_start > guest_end); for (i = 0; i < ARRAY_SIZE(regions); i++) { pci_region = regions[i]; pci_start = d->pci.io_regions[pci_region].addr; pci_end = pci_start + d->pci.io_regions[pci_region].size; /* mapped? */ if (pci_start == -1) { continue; } /* start address in range ? */ if (guest_start < pci_start || guest_start > pci_end) { continue; } /* end address in range ? */ if (guest_end > pci_end) { continue; } /* passed */ break; } PANIC_ON(i == ARRAY_SIZE(regions)); /* finished loop without match */ switch (pci_region) { case QXL_RAM_RANGE_INDEX: virt_start = (intptr_t)memory_region_get_ram_ptr(&d->vga.vram); break; case QXL_VRAM_RANGE_INDEX: case 4 /* vram 64bit */: virt_start = (intptr_t)memory_region_get_ram_ptr(&d->vram_bar); break; default: /* should not happen */ abort(); } memslot.slot_id = slot_id; memslot.slot_group_id = MEMSLOT_GROUP_GUEST; /* guest group */ memslot.virt_start = virt_start + (guest_start - pci_start); memslot.virt_end = virt_start + (guest_end - pci_start); memslot.addr_delta = memslot.virt_start - delta; memslot.generation = d->rom->slot_generation = 0; qxl_rom_set_dirty(d); qemu_spice_add_memslot(&d->ssd, &memslot, async); d->guest_slots[slot_id].ptr = (void*)memslot.virt_start; d->guest_slots[slot_id].size = memslot.virt_end - memslot.virt_start; d->guest_slots[slot_id].delta = delta; d->guest_slots[slot_id].active = 1; }

qemu

e954ea2873fd6621d199d4a1a012fc0bc0292924

static int nbd_negotiate_handle_info(NBDClient *client, uint16_t myflags, Error **errp) { int rc; char name[NBD_MAX_NAME_SIZE + 1]; NBDExport *exp; uint16_t requests; uint16_t request; uint32_t namelen; bool sendname = false; bool blocksize = false; uint32_t sizes[3]; char buf[sizeof(uint64_t) + sizeof(uint16_t)]; const char *msg; /* Client sends: 4 bytes: L, name length (can be 0) L bytes: export name 2 bytes: N, number of requests (can be 0) N * 2 bytes: N requests */ if (client->optlen < sizeof(namelen) + sizeof(requests)) { msg = "overall request too short"; goto invalid; } if (nbd_read(client->ioc, &namelen, sizeof(namelen), errp) < 0) { return -EIO; } be32_to_cpus(&namelen); client->optlen -= sizeof(namelen); if (namelen > client->optlen - sizeof(requests) || (client->optlen - namelen) % 2) { msg = "name length is incorrect"; goto invalid; } if (namelen >= sizeof(name)) { msg = "name too long for qemu"; goto invalid; } if (nbd_read(client->ioc, name, namelen, errp) < 0) { return -EIO; } name[namelen] = '\0'; client->optlen -= namelen; trace_nbd_negotiate_handle_export_name_request(name); if (nbd_read(client->ioc, &requests, sizeof(requests), errp) < 0) { return -EIO; } be16_to_cpus(&requests); client->optlen -= sizeof(requests); trace_nbd_negotiate_handle_info_requests(requests); if (requests != client->optlen / sizeof(request)) { msg = "incorrect number of requests for overall length"; goto invalid; } while (requests--) { if (nbd_read(client->ioc, &request, sizeof(request), errp) < 0) { return -EIO; } be16_to_cpus(&request); client->optlen -= sizeof(request); trace_nbd_negotiate_handle_info_request(request, nbd_info_lookup(request)); /* We care about NBD_INFO_NAME and NBD_INFO_BLOCK_SIZE; * everything else is either a request we don't know or * something we send regardless of request */ switch (request) { case NBD_INFO_NAME: sendname = true; break; case NBD_INFO_BLOCK_SIZE: blocksize = true; break; } } assert(client->optlen == 0); exp = nbd_export_find(name); if (!exp) { return nbd_negotiate_send_rep_err(client, NBD_REP_ERR_UNKNOWN, errp, "export '%s' not present", name); } /* Don't bother sending NBD_INFO_NAME unless client requested it */ if (sendname) { rc = nbd_negotiate_send_info(client, NBD_INFO_NAME, namelen, name, errp); if (rc < 0) { return rc; } } /* Send NBD_INFO_DESCRIPTION only if available, regardless of * client request */ if (exp->description) { size_t len = strlen(exp->description); rc = nbd_negotiate_send_info(client, NBD_INFO_DESCRIPTION, len, exp->description, errp); if (rc < 0) { return rc; } } /* Send NBD_INFO_BLOCK_SIZE always, but tweak the minimum size * according to whether the client requested it, and according to * whether this is OPT_INFO or OPT_GO. */ /* minimum - 1 for back-compat, or 512 if client is new enough. * TODO: consult blk_bs(blk)->bl.request_alignment? */ sizes[0] = (client->opt == NBD_OPT_INFO || blocksize) ? BDRV_SECTOR_SIZE : 1; /* preferred - Hard-code to 4096 for now. * TODO: is blk_bs(blk)->bl.opt_transfer appropriate? */ sizes[1] = 4096; /* maximum - At most 32M, but smaller as appropriate. */ sizes[2] = MIN(blk_get_max_transfer(exp->blk), NBD_MAX_BUFFER_SIZE); trace_nbd_negotiate_handle_info_block_size(sizes[0], sizes[1], sizes[2]); cpu_to_be32s(&sizes[0]); cpu_to_be32s(&sizes[1]); cpu_to_be32s(&sizes[2]); rc = nbd_negotiate_send_info(client, NBD_INFO_BLOCK_SIZE, sizeof(sizes), sizes, errp); if (rc < 0) { return rc; } /* Send NBD_INFO_EXPORT always */ trace_nbd_negotiate_new_style_size_flags(exp->size, exp->nbdflags | myflags); stq_be_p(buf, exp->size); stw_be_p(buf + 8, exp->nbdflags | myflags); rc = nbd_negotiate_send_info(client, NBD_INFO_EXPORT, sizeof(buf), buf, errp); if (rc < 0) { return rc; } /* If the client is just asking for NBD_OPT_INFO, but forgot to * request block sizes, return an error. * TODO: consult blk_bs(blk)->request_align, and only error if it * is not 1? */ if (client->opt == NBD_OPT_INFO && !blocksize) { return nbd_negotiate_send_rep_err(client, NBD_REP_ERR_BLOCK_SIZE_REQD, errp, "request NBD_INFO_BLOCK_SIZE to " "use this export"); } /* Final reply */ rc = nbd_negotiate_send_rep(client, NBD_REP_ACK, errp); if (rc < 0) { return rc; } if (client->opt == NBD_OPT_GO) { client->exp = exp; QTAILQ_INSERT_TAIL(&client->exp->clients, client, next); nbd_export_get(client->exp); rc = 1; } return rc; invalid: if (nbd_drop(client->ioc, client->optlen, errp) < 0) { return -EIO; } return nbd_negotiate_send_rep_err(client, NBD_REP_ERR_INVALID, errp, "%s", msg); }

qemu

894e02804c862c6940b43a0a488164655d3fb3f0

static void qemu_rdma_init_one_block(void *host_addr, ram_addr_t block_offset, ram_addr_t length, void *opaque) { __qemu_rdma_add_block(opaque, host_addr, block_offset, length); }

qemu

60fe637bf0e4d7989e21e50f52526444765c63b4

static int qsv_decode(AVCodecContext *avctx, QSVContext *q, AVFrame *frame, int *got_frame, AVPacket *avpkt) { QSVFrame *out_frame; mfxFrameSurface1 *insurf; mfxFrameSurface1 *outsurf; mfxSyncPoint *sync; mfxBitstream bs = { { { 0 } } }; int ret; if (avpkt->size) { bs.Data = avpkt->data; bs.DataLength = avpkt->size; bs.MaxLength = bs.DataLength; bs.TimeStamp = avpkt->pts; } sync = av_mallocz(sizeof(*sync)); if (!sync) { av_freep(&sync); return AVERROR(ENOMEM); } do { ret = get_surface(avctx, q, &insurf); if (ret < 0) return ret; ret = MFXVideoDECODE_DecodeFrameAsync(q->session, avpkt->size ? &bs : NULL, insurf, &outsurf, sync); if (ret == MFX_WRN_DEVICE_BUSY) av_usleep(500); } while (ret == MFX_WRN_DEVICE_BUSY || ret == MFX_ERR_MORE_SURFACE); if (ret != MFX_ERR_NONE && ret != MFX_ERR_MORE_DATA && ret != MFX_WRN_VIDEO_PARAM_CHANGED && ret != MFX_ERR_MORE_SURFACE) { av_log(avctx, AV_LOG_ERROR, "Error during QSV decoding.\n"); av_freep(&sync); return ff_qsv_error(ret); } /* make sure we do not enter an infinite loop if the SDK * did not consume any data and did not return anything */ if (!*sync && !bs.DataOffset) { av_log(avctx, AV_LOG_WARNING, "A decode call did not consume any data\n"); bs.DataOffset = avpkt->size; } if (*sync) { QSVFrame *out_frame = find_frame(q, outsurf); if (!out_frame) { av_log(avctx, AV_LOG_ERROR, "The returned surface does not correspond to any frame\n"); av_freep(&sync); return AVERROR_BUG; } out_frame->queued = 1; av_fifo_generic_write(q->async_fifo, &out_frame, sizeof(out_frame), NULL); av_fifo_generic_write(q->async_fifo, &sync, sizeof(sync), NULL); } else { av_freep(&sync); } if (!av_fifo_space(q->async_fifo) || (!avpkt->size && av_fifo_size(q->async_fifo))) { AVFrame *src_frame; av_fifo_generic_read(q->async_fifo, &out_frame, sizeof(out_frame), NULL); av_fifo_generic_read(q->async_fifo, &sync, sizeof(sync), NULL); out_frame->queued = 0; do { ret = MFXVideoCORE_SyncOperation(q->session, *sync, 1000); } while (ret == MFX_WRN_IN_EXECUTION); av_freep(&sync); src_frame = out_frame->frame; ret = av_frame_ref(frame, src_frame); if (ret < 0) return ret; outsurf = out_frame->surface; #if FF_API_PKT_PTS FF_DISABLE_DEPRECATION_WARNINGS frame->pkt_pts = outsurf->Data.TimeStamp; FF_ENABLE_DEPRECATION_WARNINGS #endif frame->pts = outsurf->Data.TimeStamp; frame->repeat_pict = outsurf->Info.PicStruct & MFX_PICSTRUCT_FRAME_TRIPLING ? 4 : outsurf->Info.PicStruct & MFX_PICSTRUCT_FRAME_DOUBLING ? 2 : outsurf->Info.PicStruct & MFX_PICSTRUCT_FIELD_REPEATED ? 1 : 0; frame->top_field_first = outsurf->Info.PicStruct & MFX_PICSTRUCT_FIELD_TFF; frame->interlaced_frame = !(outsurf->Info.PicStruct & MFX_PICSTRUCT_PROGRESSIVE); *got_frame = 1; } return bs.DataOffset; }

FFmpeg

b6f80b16d1a82463a77352b8756e1cdcaa3a33d0

static int cmp(const void *a, const void *b) { const double va = *(const double *)a, vb = *(const double *)b; return va < vb ? -1 : ( va > vb ? 1 : 0 ); }

FFmpeg

92e483f8ed70d88d4f64337f65bae212502735d4

static void usb_ohci_init(OHCIState *ohci, DeviceState *dev, int num_ports, dma_addr_t localmem_base, char *masterbus, uint32_t firstport, AddressSpace *as, Error **errp) { Error *err = NULL; int i; ohci->as = as; if (usb_frame_time == 0) { #ifdef OHCI_TIME_WARP usb_frame_time = get_ticks_per_sec(); usb_bit_time = muldiv64(1, get_ticks_per_sec(), USB_HZ/1000); #else usb_frame_time = muldiv64(1, get_ticks_per_sec(), 1000); if (get_ticks_per_sec() >= USB_HZ) { usb_bit_time = muldiv64(1, get_ticks_per_sec(), USB_HZ); } else { usb_bit_time = 1; } #endif trace_usb_ohci_init_time(usb_frame_time, usb_bit_time); } ohci->num_ports = num_ports; if (masterbus) { USBPort *ports[OHCI_MAX_PORTS]; for(i = 0; i < num_ports; i++) { ports[i] = &ohci->rhport[i].port; } usb_register_companion(masterbus, ports, num_ports, firstport, ohci, &ohci_port_ops, USB_SPEED_MASK_LOW | USB_SPEED_MASK_FULL, &err); if (err) { error_propagate(errp, err); return; } } else { usb_bus_new(&ohci->bus, sizeof(ohci->bus), &ohci_bus_ops, dev); for (i = 0; i < num_ports; i++) { usb_register_port(&ohci->bus, &ohci->rhport[i].port, ohci, i, &ohci_port_ops, USB_SPEED_MASK_LOW | USB_SPEED_MASK_FULL); } } memory_region_init_io(&ohci->mem, OBJECT(dev), &ohci_mem_ops, ohci, "ohci", 256); ohci->localmem_base = localmem_base; ohci->name = object_get_typename(OBJECT(dev)); usb_packet_init(&ohci->usb_packet); ohci->async_td = 0; qemu_register_reset(ohci_reset, ohci); }

qemu

88dd1b8d0063ff16c54dc19c8b52508a00108f50

static void read_len_table(uint8_t *dst, GetBitContext *gb){ int i, val, repeat; for(i=0; i<256;){ repeat= get_bits(gb, 3); val = get_bits(gb, 5); if(repeat==0) repeat= get_bits(gb, 8); //printf("%d %d\n", val, repeat); while (repeat--) dst[i++] = val; } }

FFmpeg

e30004fa733ec64b6ff90678098c1f1132d4d603

static int dca_parse(AVCodecParserContext *s, AVCodecContext *avctx, const uint8_t **poutbuf, int *poutbuf_size, const uint8_t *buf, int buf_size) { DCAParseContext *pc1 = s->priv_data; ParseContext *pc = &pc1->pc; int next, duration, sample_rate; if (s->flags & PARSER_FLAG_COMPLETE_FRAMES) { next = buf_size; } else { next = dca_find_frame_end(pc1, buf, buf_size); if (ff_combine_frame(pc, next, &buf, &buf_size) < 0) { *poutbuf = NULL; *poutbuf_size = 0; return buf_size; } } /* read the duration and sample rate from the frame header */ if (!dca_parse_params(buf, buf_size, &duration, &sample_rate, &pc1->framesize)) { s->duration = duration; avctx->sample_rate = sample_rate; } else s->duration = 0; *poutbuf = buf; *poutbuf_size = buf_size; return next; }

FFmpeg

00ae5b401b24592a9f7019baada5b349152ee2fc

void error_setg(Error **errp, const char *fmt, ...) { va_list ap; va_start(ap, fmt); error_setv(errp, ERROR_CLASS_GENERIC_ERROR, fmt, ap); va_end(ap); }

qemu

1e9b65bb1bad51735cab6c861c29b592dccabf0e

static void patch_pci_windows(PcPciInfo *pci, uint8_t *start, unsigned size) { *ACPI_BUILD_PTR(start, size, acpi_pci32_start[0], uint32_t) = cpu_to_le32(pci->w32.begin); *ACPI_BUILD_PTR(start, size, acpi_pci32_end[0], uint32_t) = cpu_to_le32(pci->w32.end - 1); if (pci->w64.end || pci->w64.begin) { *ACPI_BUILD_PTR(start, size, acpi_pci64_valid[0], uint8_t) = 1; *ACPI_BUILD_PTR(start, size, acpi_pci64_start[0], uint64_t) = cpu_to_le64(pci->w64.begin); *ACPI_BUILD_PTR(start, size, acpi_pci64_end[0], uint64_t) = cpu_to_le64(pci->w64.end - 1); *ACPI_BUILD_PTR(start, size, acpi_pci64_length[0], uint64_t) = cpu_to_le64(pci->w64.end - pci->w64.begin); } else { *ACPI_BUILD_PTR(start, size, acpi_pci64_valid[0], uint8_t) = 0; } }

qemu

b4e5a4bffda0d5dd79c87c66f28a5fac87182e30

static int decode_header(EXRContext *s) { int magic_number, version, i, flags, sar = 0; int layer_match = 0; s->current_channel_offset = 0; s->xmin = ~0; s->xmax = ~0; s->ymin = ~0; s->ymax = ~0; s->xdelta = ~0; s->ydelta = ~0; s->channel_offsets[0] = -1; s->channel_offsets[1] = -1; s->channel_offsets[2] = -1; s->channel_offsets[3] = -1; s->pixel_type = EXR_UNKNOWN; s->compression = EXR_UNKN; s->nb_channels = 0; s->w = 0; s->h = 0; s->tile_attr.xSize = -1; s->tile_attr.ySize = -1; s->is_tile = 0; s->is_luma = 0; if (bytestream2_get_bytes_left(&s->gb) < 10) { av_log(s->avctx, AV_LOG_ERROR, "Header too short to parse.\n"); return AVERROR_INVALIDDATA; } magic_number = bytestream2_get_le32(&s->gb); if (magic_number != 20000630) { /* As per documentation of OpenEXR, it is supposed to be * int 20000630 little-endian */ av_log(s->avctx, AV_LOG_ERROR, "Wrong magic number %d.\n", magic_number); return AVERROR_INVALIDDATA; } version = bytestream2_get_byte(&s->gb); if (version != 2) { avpriv_report_missing_feature(s->avctx, "Version %d", version); return AVERROR_PATCHWELCOME; } flags = bytestream2_get_le24(&s->gb); if (flags == 0x00) s->is_tile = 0; else if (flags & 0x02) s->is_tile = 1; else{ avpriv_report_missing_feature(s->avctx, "flags %d", flags); return AVERROR_PATCHWELCOME; } // Parse the header while (bytestream2_get_bytes_left(&s->gb) > 0 && *s->gb.buffer) { int var_size; if ((var_size = check_header_variable(s, "channels", "chlist", 38)) >= 0) { GetByteContext ch_gb; if (!var_size) return AVERROR_INVALIDDATA; bytestream2_init(&ch_gb, s->gb.buffer, var_size); while (bytestream2_get_bytes_left(&ch_gb) >= 19) { EXRChannel *channel; enum ExrPixelType current_pixel_type; int channel_index = -1; int xsub, ysub; if (strcmp(s->layer, "") != 0) { if (strncmp(ch_gb.buffer, s->layer, strlen(s->layer)) == 0) { layer_match = 1; av_log(s->avctx, AV_LOG_INFO, "Channel match layer : %s.\n", ch_gb.buffer); ch_gb.buffer += strlen(s->layer); if (*ch_gb.buffer == '.') ch_gb.buffer++; /* skip dot if not given */ } else { av_log(s->avctx, AV_LOG_INFO, "Channel doesn't match layer : %s.\n", ch_gb.buffer); } } else { layer_match = 1; } if (layer_match) { /* only search channel if the layer match is valid */ if (!strcmp(ch_gb.buffer, "R") || !strcmp(ch_gb.buffer, "X") || !strcmp(ch_gb.buffer, "U")) { channel_index = 0; s->is_luma = 0; } else if (!strcmp(ch_gb.buffer, "G") || !strcmp(ch_gb.buffer, "V")) { channel_index = 1; s->is_luma = 0; } else if (!strcmp(ch_gb.buffer, "Y")) { channel_index = 1; s->is_luma = 1; } else if (!strcmp(ch_gb.buffer, "B") || !strcmp(ch_gb.buffer, "Z") || !strcmp(ch_gb.buffer, "W")){ channel_index = 2; s->is_luma = 0; } else if (!strcmp(ch_gb.buffer, "A")) { channel_index = 3; } else { av_log(s->avctx, AV_LOG_WARNING, "Unsupported channel %.256s.\n", ch_gb.buffer); } } /* skip until you get a 0 */ while (bytestream2_get_bytes_left(&ch_gb) > 0 && bytestream2_get_byte(&ch_gb)) continue; if (bytestream2_get_bytes_left(&ch_gb) < 4) { av_log(s->avctx, AV_LOG_ERROR, "Incomplete header.\n"); return AVERROR_INVALIDDATA; } current_pixel_type = bytestream2_get_le32(&ch_gb); if (current_pixel_type >= EXR_UNKNOWN) { avpriv_report_missing_feature(s->avctx, "Pixel type %d", current_pixel_type); return AVERROR_PATCHWELCOME; } bytestream2_skip(&ch_gb, 4); xsub = bytestream2_get_le32(&ch_gb); ysub = bytestream2_get_le32(&ch_gb); if (xsub != 1 || ysub != 1) { avpriv_report_missing_feature(s->avctx, "Subsampling %dx%d", xsub, ysub); return AVERROR_PATCHWELCOME; } if (s->channel_offsets[channel_index] == -1){/* channel have not been previously assign */ if (channel_index >= 0) { if (s->pixel_type != EXR_UNKNOWN && s->pixel_type != current_pixel_type) { av_log(s->avctx, AV_LOG_ERROR, "RGB channels not of the same depth.\n"); return AVERROR_INVALIDDATA; } s->pixel_type = current_pixel_type; s->channel_offsets[channel_index] = s->current_channel_offset; } } s->channels = av_realloc(s->channels, ++s->nb_channels * sizeof(EXRChannel)); if (!s->channels) return AVERROR(ENOMEM); channel = &s->channels[s->nb_channels - 1]; channel->pixel_type = current_pixel_type; channel->xsub = xsub; channel->ysub = ysub; s->current_channel_offset += 1 << current_pixel_type; } /* Check if all channels are set with an offset or if the channels * are causing an overflow */ if (!s->is_luma){/* if we expected to have at least 3 channels */ if (FFMIN3(s->channel_offsets[0], s->channel_offsets[1], s->channel_offsets[2]) < 0) { if (s->channel_offsets[0] < 0) av_log(s->avctx, AV_LOG_ERROR, "Missing red channel.\n"); if (s->channel_offsets[1] < 0) av_log(s->avctx, AV_LOG_ERROR, "Missing green channel.\n"); if (s->channel_offsets[2] < 0) av_log(s->avctx, AV_LOG_ERROR, "Missing blue channel.\n"); return AVERROR_INVALIDDATA; } } // skip one last byte and update main gb s->gb.buffer = ch_gb.buffer + 1; continue; } else if ((var_size = check_header_variable(s, "dataWindow", "box2i", 31)) >= 0) { if (!var_size) return AVERROR_INVALIDDATA; s->xmin = bytestream2_get_le32(&s->gb); s->ymin = bytestream2_get_le32(&s->gb); s->xmax = bytestream2_get_le32(&s->gb); s->ymax = bytestream2_get_le32(&s->gb); s->xdelta = (s->xmax - s->xmin) + 1; s->ydelta = (s->ymax - s->ymin) + 1; continue; } else if ((var_size = check_header_variable(s, "displayWindow", "box2i", 34)) >= 0) { if (!var_size) return AVERROR_INVALIDDATA; bytestream2_skip(&s->gb, 8); s->w = bytestream2_get_le32(&s->gb) + 1; s->h = bytestream2_get_le32(&s->gb) + 1; continue; } else if ((var_size = check_header_variable(s, "lineOrder", "lineOrder", 25)) >= 0) { int line_order; if (!var_size) return AVERROR_INVALIDDATA; line_order = bytestream2_get_byte(&s->gb); av_log(s->avctx, AV_LOG_DEBUG, "line order: %d.\n", line_order); if (line_order > 2) { av_log(s->avctx, AV_LOG_ERROR, "Unknown line order.\n"); return AVERROR_INVALIDDATA; } continue; } else if ((var_size = check_header_variable(s, "pixelAspectRatio", "float", 31)) >= 0) { if (!var_size) return AVERROR_INVALIDDATA; sar = bytestream2_get_le32(&s->gb); continue; } else if ((var_size = check_header_variable(s, "compression", "compression", 29)) >= 0) { if (!var_size) return AVERROR_INVALIDDATA; if (s->compression == EXR_UNKN) s->compression = bytestream2_get_byte(&s->gb); else av_log(s->avctx, AV_LOG_WARNING, "Found more than one compression attribute.\n"); continue; } else if ((var_size = check_header_variable(s, "tiles", "tiledesc", 22)) >= 0) { char tileLevel; if (!s->is_tile) av_log(s->avctx, AV_LOG_WARNING, "Found tile attribute and scanline flags. Exr will be interpreted as scanline.\n"); s->tile_attr.xSize = bytestream2_get_le32(&s->gb); s->tile_attr.ySize = bytestream2_get_le32(&s->gb); tileLevel = bytestream2_get_byte(&s->gb); s->tile_attr.level_mode = tileLevel & 0x0f; s->tile_attr.level_round = (tileLevel >> 4) & 0x0f; if (s->tile_attr.level_mode >= EXR_TILE_LEVEL_UNKNOWN){ avpriv_report_missing_feature(s->avctx, "Tile level mode %d", s->tile_attr.level_mode); return AVERROR_PATCHWELCOME; } if (s->tile_attr.level_round >= EXR_TILE_ROUND_UNKNOWN) { avpriv_report_missing_feature(s->avctx, "Tile level round %d", s->tile_attr.level_round); return AVERROR_PATCHWELCOME; } continue; } // Check if there are enough bytes for a header if (bytestream2_get_bytes_left(&s->gb) <= 9) { av_log(s->avctx, AV_LOG_ERROR, "Incomplete header\n"); return AVERROR_INVALIDDATA; } // Process unknown variables for (i = 0; i < 2; i++) // value_name and value_type while (bytestream2_get_byte(&s->gb) != 0); // Skip variable length bytestream2_skip(&s->gb, bytestream2_get_le32(&s->gb)); } ff_set_sar(s->avctx, av_d2q(av_int2float(sar), 255)); if (s->compression == EXR_UNKN) { av_log(s->avctx, AV_LOG_ERROR, "Missing compression attribute.\n"); return AVERROR_INVALIDDATA; } if (s->is_tile) { if (s->tile_attr.xSize < 1 || s->tile_attr.ySize < 1) { av_log(s->avctx, AV_LOG_ERROR, "Invalid tile attribute.\n"); return AVERROR_INVALIDDATA; } } if (bytestream2_get_bytes_left(&s->gb) <= 0) { av_log(s->avctx, AV_LOG_ERROR, "Incomplete frame.\n"); return AVERROR_INVALIDDATA; } // aaand we are done bytestream2_skip(&s->gb, 1); return 0; }

FFmpeg

ffdc5d09e498bee8176c9e35df101c01c546a738

static void encode_block(NellyMoserEncodeContext *s, unsigned char *output, int output_size) { PutBitContext pb; int i, j, band, block, best_idx, power_idx = 0; float power_val, coeff, coeff_sum; float pows[NELLY_FILL_LEN]; int bits[NELLY_BUF_LEN], idx_table[NELLY_BANDS]; float cand[NELLY_BANDS]; apply_mdct(s); init_put_bits(&pb, output, output_size * 8); i = 0; for (band = 0; band < NELLY_BANDS; band++) { coeff_sum = 0; for (j = 0; j < ff_nelly_band_sizes_table[band]; i++, j++) { coeff_sum += s->mdct_out[i ] * s->mdct_out[i ] + s->mdct_out[i + NELLY_BUF_LEN] * s->mdct_out[i + NELLY_BUF_LEN]; } cand[band] = log(FFMAX(1.0, coeff_sum / (ff_nelly_band_sizes_table[band] << 7))) * 1024.0 / M_LN2; } if (s->avctx->trellis) { get_exponent_dynamic(s, cand, idx_table); } else { get_exponent_greedy(s, cand, idx_table); } i = 0; for (band = 0; band < NELLY_BANDS; band++) { if (band) { power_idx += ff_nelly_delta_table[idx_table[band]]; put_bits(&pb, 5, idx_table[band]); } else { power_idx = ff_nelly_init_table[idx_table[0]]; put_bits(&pb, 6, idx_table[0]); } power_val = pow_table[power_idx & 0x7FF] / (1 << ((power_idx >> 11) + POW_TABLE_OFFSET)); for (j = 0; j < ff_nelly_band_sizes_table[band]; i++, j++) { s->mdct_out[i] *= power_val; s->mdct_out[i + NELLY_BUF_LEN] *= power_val; pows[i] = power_idx; } } ff_nelly_get_sample_bits(pows, bits); for (block = 0; block < 2; block++) { for (i = 0; i < NELLY_FILL_LEN; i++) { if (bits[i] > 0) { const float *table = ff_nelly_dequantization_table + (1 << bits[i]) - 1; coeff = s->mdct_out[block * NELLY_BUF_LEN + i]; best_idx = quant_lut[av_clip ( coeff * quant_lut_mul[bits[i]] + quant_lut_add[bits[i]], quant_lut_offset[bits[i]], quant_lut_offset[bits[i]+1] - 1 )]; if (fabs(coeff - table[best_idx]) > fabs(coeff - table[best_idx + 1])) best_idx++; put_bits(&pb, bits[i], best_idx); } } if (!block) put_bits(&pb, NELLY_HEADER_BITS + NELLY_DETAIL_BITS - put_bits_count(&pb), 0); } flush_put_bits(&pb); memset(put_bits_ptr(&pb), 0, output + output_size - put_bits_ptr(&pb)); }

FFmpeg

50833c9f7b4e1922197a8955669f8ab3589c8cef

hwaddr uc32_cpu_get_phys_page_debug(CPUState *cs, vaddr addr) { UniCore32CPU *cpu = UNICORE32_CPU(cs); cpu_abort(CPU(cpu), "%s not supported yet\n", __func__); return addr; }

qemu

0ac241bcf9f9d99a252a352a162f4b13b24732ab

static char *SocketAddress_to_str(const char *prefix, SocketAddress *addr, bool is_listen, bool is_telnet) { switch (addr->type) { case SOCKET_ADDRESS_KIND_INET: return g_strdup_printf("%s%s:%s:%s%s", prefix, is_telnet ? "telnet" : "tcp", addr->u.inet.data->host, addr->u.inet.data->port, is_listen ? ",server" : ""); break; case SOCKET_ADDRESS_KIND_UNIX: return g_strdup_printf("%sunix:%s%s", prefix, addr->u.q_unix.data->path, is_listen ? ",server" : ""); break; case SOCKET_ADDRESS_KIND_FD: return g_strdup_printf("%sfd:%s%s", prefix, addr->u.fd.data->str, is_listen ? ",server" : ""); break; default: abort(); } }

qemu

d2e49aad7259af943b72be761ee5c18e14acd71a

static void dnxhd_decode_dct_block_10(const DNXHDContext *ctx, RowContext *row, int n) { dnxhd_decode_dct_block(ctx, row, n, 6, 8, 4); }

FFmpeg

b8b8e82ea14016b2cb04b49ecea57f836e6ee7f8

static void opt_qsquish(const char *arg) { video_qsquish = atof(arg); if (video_qsquish < 0.0 || video_qsquish > 99.0) { fprintf(stderr, "qsquish must be >= 0.0 and <= 99.0\n"); exit(1); } }

FFmpeg

58bba31e3f22bb07645a764602603364b1ec953d

static int create_vorbis_context(vorbis_enc_context *venc, AVCodecContext *avctx) { vorbis_enc_floor *fc; vorbis_enc_residue *rc; vorbis_enc_mapping *mc; int i, book, ret; venc->channels = avctx->channels; venc->sample_rate = avctx->sample_rate; venc->log2_blocksize[0] = venc->log2_blocksize[1] = 11; venc->ncodebooks = FF_ARRAY_ELEMS(cvectors); venc->codebooks = av_malloc(sizeof(vorbis_enc_codebook) * venc->ncodebooks); if (!venc->codebooks) return AVERROR(ENOMEM); // codebook 0..14 - floor1 book, values 0..255 // codebook 15 residue masterbook // codebook 16..29 residue for (book = 0; book < venc->ncodebooks; book++) { vorbis_enc_codebook *cb = &venc->codebooks[book]; int vals; cb->ndimensions = cvectors[book].dim; cb->nentries = cvectors[book].real_len; cb->min = cvectors[book].min; cb->delta = cvectors[book].delta; cb->lookup = cvectors[book].lookup; cb->seq_p = 0; cb->lens = av_malloc_array(cb->nentries, sizeof(uint8_t)); cb->codewords = av_malloc_array(cb->nentries, sizeof(uint32_t)); if (!cb->lens || !cb->codewords) return AVERROR(ENOMEM); memcpy(cb->lens, cvectors[book].clens, cvectors[book].len); memset(cb->lens + cvectors[book].len, 0, cb->nentries - cvectors[book].len); if (cb->lookup) { vals = cb_lookup_vals(cb->lookup, cb->ndimensions, cb->nentries); cb->quantlist = av_malloc_array(vals, sizeof(int)); if (!cb->quantlist) return AVERROR(ENOMEM); for (i = 0; i < vals; i++) cb->quantlist[i] = cvectors[book].quant[i]; } else { cb->quantlist = NULL; } if ((ret = ready_codebook(cb)) < 0) return ret; } venc->nfloors = 1; venc->floors = av_malloc(sizeof(vorbis_enc_floor) * venc->nfloors); if (!venc->floors) return AVERROR(ENOMEM); // just 1 floor fc = &venc->floors[0]; fc->partitions = NUM_FLOOR_PARTITIONS; fc->partition_to_class = av_malloc(sizeof(int) * fc->partitions); if (!fc->partition_to_class) return AVERROR(ENOMEM); fc->nclasses = 0; for (i = 0; i < fc->partitions; i++) { static const int a[] = {0, 1, 2, 2, 3, 3, 4, 4}; fc->partition_to_class[i] = a[i]; fc->nclasses = FFMAX(fc->nclasses, fc->partition_to_class[i]); } fc->nclasses++; fc->classes = av_malloc_array(fc->nclasses, sizeof(vorbis_enc_floor_class)); if (!fc->classes) return AVERROR(ENOMEM); for (i = 0; i < fc->nclasses; i++) { vorbis_enc_floor_class * c = &fc->classes[i]; int j, books; c->dim = floor_classes[i].dim; c->subclass = floor_classes[i].subclass; c->masterbook = floor_classes[i].masterbook; books = (1 << c->subclass); c->books = av_malloc_array(books, sizeof(int)); if (!c->books) return AVERROR(ENOMEM); for (j = 0; j < books; j++) c->books[j] = floor_classes[i].nbooks[j]; } fc->multiplier = 2; fc->rangebits = venc->log2_blocksize[0] - 1; fc->values = 2; for (i = 0; i < fc->partitions; i++) fc->values += fc->classes[fc->partition_to_class[i]].dim; fc->list = av_malloc_array(fc->values, sizeof(vorbis_floor1_entry)); if (!fc->list) return AVERROR(ENOMEM); fc->list[0].x = 0; fc->list[1].x = 1 << fc->rangebits; for (i = 2; i < fc->values; i++) { static const int a[] = { 93, 23,372, 6, 46,186,750, 14, 33, 65, 130,260,556, 3, 10, 18, 28, 39, 55, 79, 111,158,220,312,464,650,850 }; fc->list[i].x = a[i - 2]; } if (ff_vorbis_ready_floor1_list(avctx, fc->list, fc->values)) return AVERROR_BUG; venc->nresidues = 1; venc->residues = av_malloc(sizeof(vorbis_enc_residue) * venc->nresidues); if (!venc->residues) return AVERROR(ENOMEM); // single residue rc = &venc->residues[0]; rc->type = 2; rc->begin = 0; rc->end = 1600; rc->partition_size = 32; rc->classifications = 10; rc->classbook = 15; rc->books = av_malloc(sizeof(*rc->books) * rc->classifications); if (!rc->books) return AVERROR(ENOMEM); { static const int8_t a[10][8] = { { -1, -1, -1, -1, -1, -1, -1, -1, }, { -1, -1, 16, -1, -1, -1, -1, -1, }, { -1, -1, 17, -1, -1, -1, -1, -1, }, { -1, -1, 18, -1, -1, -1, -1, -1, }, { -1, -1, 19, -1, -1, -1, -1, -1, }, { -1, -1, 20, -1, -1, -1, -1, -1, }, { -1, -1, 21, -1, -1, -1, -1, -1, }, { 22, 23, -1, -1, -1, -1, -1, -1, }, { 24, 25, -1, -1, -1, -1, -1, -1, }, { 26, 27, 28, -1, -1, -1, -1, -1, }, }; memcpy(rc->books, a, sizeof a); } if ((ret = ready_residue(rc, venc)) < 0) return ret; venc->nmappings = 1; venc->mappings = av_malloc(sizeof(vorbis_enc_mapping) * venc->nmappings); if (!venc->mappings) return AVERROR(ENOMEM); // single mapping mc = &venc->mappings[0]; mc->submaps = 1; mc->mux = av_malloc(sizeof(int) * venc->channels); if (!mc->mux) return AVERROR(ENOMEM); for (i = 0; i < venc->channels; i++) mc->mux[i] = 0; mc->floor = av_malloc(sizeof(int) * mc->submaps); mc->residue = av_malloc(sizeof(int) * mc->submaps); if (!mc->floor || !mc->residue) return AVERROR(ENOMEM); for (i = 0; i < mc->submaps; i++) { mc->floor[i] = 0; mc->residue[i] = 0; } mc->coupling_steps = venc->channels == 2 ? 1 : 0; mc->magnitude = av_malloc(sizeof(int) * mc->coupling_steps); mc->angle = av_malloc(sizeof(int) * mc->coupling_steps); if (!mc->magnitude || !mc->angle) return AVERROR(ENOMEM); if (mc->coupling_steps) { mc->magnitude[0] = 0; mc->angle[0] = 1; } venc->nmodes = 1; venc->modes = av_malloc(sizeof(vorbis_enc_mode) * venc->nmodes); if (!venc->modes) return AVERROR(ENOMEM); // single mode venc->modes[0].blockflag = 0; venc->modes[0].mapping = 0; venc->have_saved = 0; venc->saved = av_malloc_array(sizeof(float) * venc->channels, (1 << venc->log2_blocksize[1]) / 2); venc->samples = av_malloc_array(sizeof(float) * venc->channels, (1 << venc->log2_blocksize[1])); venc->floor = av_malloc_array(sizeof(float) * venc->channels, (1 << venc->log2_blocksize[1]) / 2); venc->coeffs = av_malloc_array(sizeof(float) * venc->channels, (1 << venc->log2_blocksize[1]) / 2); venc->scratch = av_malloc_array(sizeof(float) * venc->channels, (1 << venc->log2_blocksize[1]) / 2); if (!venc->saved || !venc->samples || !venc->floor || !venc->coeffs || !venc->scratch) return AVERROR(ENOMEM); if ((ret = dsp_init(avctx, venc)) < 0) return ret; return 0; }

FFmpeg

5a2ad7ede33b5d63c1f1b1313a218da62e1c0d48

static void mpeg_decode_picture_coding_extension(Mpeg1Context *s1) { MpegEncContext *s= &s1->mpeg_enc_ctx; s->full_pel[0] = s->full_pel[1] = 0; s->mpeg_f_code[0][0] = get_bits(&s->gb, 4); s->mpeg_f_code[0][1] = get_bits(&s->gb, 4); s->mpeg_f_code[1][0] = get_bits(&s->gb, 4); s->mpeg_f_code[1][1] = get_bits(&s->gb, 4); if(!s->pict_type && s1->mpeg_enc_ctx_allocated){ av_log(s->avctx, AV_LOG_ERROR, "Missing picture start code, guessing missing values\n"); if(s->mpeg_f_code[1][0] == 15 && s->mpeg_f_code[1][1]==15){ if(s->mpeg_f_code[0][0] == 15 && s->mpeg_f_code[0][1] == 15) s->pict_type= FF_I_TYPE; else s->pict_type= FF_P_TYPE; }else s->pict_type= FF_B_TYPE; s->current_picture.pict_type= s->pict_type; s->current_picture.key_frame= s->pict_type == FF_I_TYPE; } s->intra_dc_precision = get_bits(&s->gb, 2); s->picture_structure = get_bits(&s->gb, 2); s->top_field_first = get_bits1(&s->gb); s->frame_pred_frame_dct = get_bits1(&s->gb); s->concealment_motion_vectors = get_bits1(&s->gb); s->q_scale_type = get_bits1(&s->gb); s->intra_vlc_format = get_bits1(&s->gb); s->alternate_scan = get_bits1(&s->gb); s->repeat_first_field = get_bits1(&s->gb); s->chroma_420_type = get_bits1(&s->gb); s->progressive_frame = get_bits1(&s->gb); if(s->progressive_sequence && !s->progressive_frame){ s->progressive_frame= 1; av_log(s->avctx, AV_LOG_ERROR, "interlaced frame in progressive sequence, ignoring\n"); } if(s->picture_structure==0 || (s->progressive_frame && s->picture_structure!=PICT_FRAME)){ av_log(s->avctx, AV_LOG_ERROR, "picture_structure %d invalid, ignoring\n", s->picture_structure); s->picture_structure= PICT_FRAME; } if(s->progressive_frame && !s->frame_pred_frame_dct){ av_log(s->avctx, AV_LOG_ERROR, "invalid frame_pred_frame_dct\n"); s->frame_pred_frame_dct= 1; } if(s->picture_structure == PICT_FRAME){ s->first_field=0; s->v_edge_pos= 16*s->mb_height; }else{ s->first_field ^= 1; s->v_edge_pos= 8*s->mb_height; memset(s->mbskip_table, 0, s->mb_stride*s->mb_height); } if(s->alternate_scan){ ff_init_scantable(s->dsp.idct_permutation, &s->inter_scantable , ff_alternate_vertical_scan); ff_init_scantable(s->dsp.idct_permutation, &s->intra_scantable , ff_alternate_vertical_scan); }else{ ff_init_scantable(s->dsp.idct_permutation, &s->inter_scantable , ff_zigzag_direct); ff_init_scantable(s->dsp.idct_permutation, &s->intra_scantable , ff_zigzag_direct); } /* composite display not parsed */ dprintf(s->avctx, "intra_dc_precision=%d\n", s->intra_dc_precision); dprintf(s->avctx, "picture_structure=%d\n", s->picture_structure); dprintf(s->avctx, "top field first=%d\n", s->top_field_first); dprintf(s->avctx, "repeat first field=%d\n", s->repeat_first_field); dprintf(s->avctx, "conceal=%d\n", s->concealment_motion_vectors); dprintf(s->avctx, "intra_vlc_format=%d\n", s->intra_vlc_format); dprintf(s->avctx, "alternate_scan=%d\n", s->alternate_scan); dprintf(s->avctx, "frame_pred_frame_dct=%d\n", s->frame_pred_frame_dct); dprintf(s->avctx, "progressive_frame=%d\n", s->progressive_frame); }

FFmpeg

7a14430ed75a2eaaa430e46c2f54a7a9a8b71804

static ssize_t nic_receive(VLANClientState *nc, const uint8_t * buf, size_t size) { /* TODO: * - Magic packets should set bit 30 in power management driver register. * - Interesting packets should set bit 29 in power management driver register. */ EEPRO100State *s = DO_UPCAST(NICState, nc, nc)->opaque; uint16_t rfd_status = 0xa000; static const uint8_t broadcast_macaddr[6] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; /* TODO: check multiple IA bit. */ if (s->configuration[20] & BIT(6)) { missing("Multiple IA bit"); return -1; } if (s->configuration[8] & 0x80) { /* CSMA is disabled. */ logout("%p received while CSMA is disabled\n", s); return -1; } else if (size < 64 && (s->configuration[7] & BIT(0))) { /* Short frame and configuration byte 7/0 (discard short receive) set: * Short frame is discarded */ logout("%p received short frame (%zu byte)\n", s, size); s->statistics.rx_short_frame_errors++; #if 0 return -1; #endif } else if ((size > MAX_ETH_FRAME_SIZE + 4) && !(s->configuration[18] & BIT(3))) { /* Long frame and configuration byte 18/3 (long receive ok) not set: * Long frames are discarded. */ logout("%p received long frame (%zu byte), ignored\n", s, size); return -1; } else if (memcmp(buf, s->conf.macaddr.a, 6) == 0) { /* !!! */ /* Frame matches individual address. */ /* TODO: check configuration byte 15/4 (ignore U/L). */ TRACE(RXTX, logout("%p received frame for me, len=%zu\n", s, size)); } else if (memcmp(buf, broadcast_macaddr, 6) == 0) { /* Broadcast frame. */ TRACE(RXTX, logout("%p received broadcast, len=%zu\n", s, size)); rfd_status |= 0x0002; } else if (buf[0] & 0x01) { /* Multicast frame. */ TRACE(RXTX, logout("%p received multicast, len=%zu,%s\n", s, size, nic_dump(buf, size))); if (s->configuration[21] & BIT(3)) { /* Multicast all bit is set, receive all multicast frames. */ } else { unsigned mcast_idx = compute_mcast_idx(buf); assert(mcast_idx < 64); if (s->mult[mcast_idx >> 3] & (1 << (mcast_idx & 7))) { /* Multicast frame is allowed in hash table. */ } else if (s->configuration[15] & BIT(0)) { /* Promiscuous: receive all. */ rfd_status |= 0x0004; } else { TRACE(RXTX, logout("%p multicast ignored\n", s)); return -1; } } /* TODO: Next not for promiscuous mode? */ rfd_status |= 0x0002; } else if (s->configuration[15] & BIT(0)) { /* Promiscuous: receive all. */ TRACE(RXTX, logout("%p received frame in promiscuous mode, len=%zu\n", s, size)); rfd_status |= 0x0004; } else { TRACE(RXTX, logout("%p received frame, ignored, len=%zu,%s\n", s, size, nic_dump(buf, size))); return size; } if (get_ru_state(s) != ru_ready) { /* No resources available. */ logout("no resources, state=%u\n", get_ru_state(s)); /* TODO: RNR interrupt only at first failed frame? */ eepro100_rnr_interrupt(s); s->statistics.rx_resource_errors++; #if 0 assert(!"no resources"); #endif return -1; } /* !!! */ eepro100_rx_t rx; cpu_physical_memory_read(s->ru_base + s->ru_offset, (uint8_t *) & rx, offsetof(eepro100_rx_t, packet)); uint16_t rfd_command = le16_to_cpu(rx.command); uint16_t rfd_size = le16_to_cpu(rx.size); if (size > rfd_size) { logout("Receive buffer (%" PRId16 " bytes) too small for data " "(%zu bytes); data truncated\n", rfd_size, size); size = rfd_size; } if (size < 64) { rfd_status |= 0x0080; } TRACE(OTHER, logout("command 0x%04x, link 0x%08x, addr 0x%08x, size %u\n", rfd_command, rx.link, rx.rx_buf_addr, rfd_size)); stw_phys(s->ru_base + s->ru_offset + offsetof(eepro100_rx_t, status), rfd_status); stw_phys(s->ru_base + s->ru_offset + offsetof(eepro100_rx_t, count), size); /* Early receive interrupt not supported. */ #if 0 eepro100_er_interrupt(s); #endif /* Receive CRC Transfer not supported. */ if (s->configuration[18] & BIT(2)) { missing("Receive CRC Transfer"); return -1; } /* TODO: check stripping enable bit. */ #if 0 assert(!(s->configuration[17] & BIT(0))); #endif cpu_physical_memory_write(s->ru_base + s->ru_offset + offsetof(eepro100_rx_t, packet), buf, size); s->statistics.rx_good_frames++; eepro100_fr_interrupt(s); s->ru_offset = le32_to_cpu(rx.link); if (rfd_command & COMMAND_EL) { /* EL bit is set, so this was the last frame. */ logout("receive: Running out of frames\n"); set_ru_state(s, ru_suspended); } if (rfd_command & COMMAND_S) { /* S bit is set. */ set_ru_state(s, ru_suspended); } return size; }

qemu

010ec6293409f10b88631c36145944b9c3277ce1

static int mov_write_mdia_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track) { int64_t pos = avio_tell(pb); avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "mdia"); mov_write_mdhd_tag(pb, mov, track); mov_write_hdlr_tag(pb, track); mov_write_minf_tag(pb, track); return update_size(pb, pos); }

FFmpeg

da048c6d24729d3bab6ccb0ac340ea129e3e88d5