address AbstractInterpreterGenerator::generate_slow_signature_handler() {
  address entry = __ pc();
  Argument argv(0, true);

  // We are in the jni transition frame. Save the last_java_frame corresponding to the
  // outer interpreter frame
  //
  __ set_last_Java_frame(FP, noreg);
  // make sure the interpreter frame we've pushed has a valid return pc
  __ mov(O7, I7);
  __ mov(Lmethod, G3_scratch);
  __ mov(Llocals, G4_scratch);
  __ save_frame(0);
  __ mov(G2_thread, L7_thread_cache);
  __ add(argv.address_in_frame(), O3);
  __ mov(G2_thread, O0);
  __ mov(G3_scratch, O1);
  __ call(CAST_FROM_FN_PTR(address, InterpreterRuntime::slow_signature_handler), relocInfo::runtime_call_type);
  __ delayed()->mov(G4_scratch, O2);
  __ mov(L7_thread_cache, G2_thread);
  __ reset_last_Java_frame();

  // load the register arguments (the C code packed them as varargs)
  for (Argument ldarg = argv.successor(); ldarg.is_register(); ldarg = ldarg.successor()) {
      __ ld_ptr(ldarg.address_in_frame(), ldarg.as_register());
  }
  __ ret();
  __ delayed()->
     restore(O0, 0, Lscratch);  // caller's Lscratch gets the result handler
  return entry;
}
bool qav::qvideo::get_frame(std::vector<unsigned char>& out, int *_frnum, const bool skip) {
	out.resize(avpicture_get_size(PIX_FMT_RGB24, out_width, out_height));
	AVPacket	packet;
	bool		is_read = false;
	av_init_packet(&packet);
	while (av_read_frame(pFormatCtx, &packet)>=0) {
		if (packet.stream_index==videoStream) {
			int frameFinished = 0;
			// Decode video frame
			if(0 > avcodec_decode_video2(pCodecCtx, pFrame, &frameFinished, &packet))
				return false;
			if(frameFinished) {
				++frnum;
				if (_frnum) *_frnum = frnum;
				is_read=true;
				if (!skip) {
					AVPicture picRGB;
					// Assign appropriate parts of buffer to image planes in pFrameRGB
					avpicture_fill((AVPicture*)&picRGB, (unsigned char*)&out[0], PIX_FMT_RGB24, out_width, out_height);
                			// Convert the image from its native format to RGB
       					sws_scale(img_convert_ctx, pFrame->data, pFrame->linesize, 0, pCodecCtx->height, picRGB.data, picRGB.linesize);
					if (settings::SAVE_IMAGES)
						save_frame(&out[0]);
				}
			}
		}
		av_free_packet(&packet);
		if (is_read) return true;
	}	
	return false;
}
Exemple #3
0
Errcode pic_save(Popot path, Popot screen)
/*****************************************************************************
 * save a picture.
 ****************************************************************************/
{
	Errcode err;

	if (pdr == NULL) {
		if (Success > (err = pdr_find_load(path)))
			return err;
	}

	if (path.pt == NULL)
		return builtin_err = Err_null_ref;

	if (screen.pt == NULL)
		screen.pt = GetPicScreen();

	if (Success > (err = create_ifile(path.pt, screen.pt)))
		return err;

	err = save_frame(screen.pt);

	close_ifile();
	return err;
}
Exemple #4
0
OopMapSet* Runtime1::generate_code_for(StubID id, StubAssembler* sasm) {

  OopMapSet* oop_maps = NULL;
  // for better readability
  const bool must_gc_arguments = true;
  const bool dont_gc_arguments = false;

  // stub code & info for the different stubs
  switch (id) {
    case forward_exception_id:
      {
        oop_maps = generate_handle_exception(id, sasm);
      }
      break;

    case new_instance_id:
    case fast_new_instance_id:
    case fast_new_instance_init_check_id:
      {
        Register G5_klass = G5; // Incoming
        Register O0_obj   = O0; // Outgoing

        if (id == new_instance_id) {
          __ set_info("new_instance", dont_gc_arguments);
        } else if (id == fast_new_instance_id) {
          __ set_info("fast new_instance", dont_gc_arguments);
        } else {
          assert(id == fast_new_instance_init_check_id, "bad StubID");
          __ set_info("fast new_instance init check", dont_gc_arguments);
        }

        if ((id == fast_new_instance_id || id == fast_new_instance_init_check_id) &&
            UseTLAB && FastTLABRefill) {
          Label slow_path;
          Register G1_obj_size = G1;
          Register G3_t1 = G3;
          Register G4_t2 = G4;
          assert_different_registers(G5_klass, G1_obj_size, G3_t1, G4_t2);

          // Push a frame since we may do dtrace notification for the
          // allocation which requires calling out and we don't want
          // to stomp the real return address.
          __ save_frame(0);

          if (id == fast_new_instance_init_check_id) {
            // make sure the klass is initialized
            __ ldub(G5_klass, in_bytes(InstanceKlass::init_state_offset()), G3_t1);
            __ cmp_and_br_short(G3_t1, InstanceKlass::fully_initialized, Assembler::notEqual, Assembler::pn, slow_path);
          }
#ifdef ASSERT
          // assert object can be fast path allocated
          {
            Label ok, not_ok;
          __ ld(G5_klass, in_bytes(Klass::layout_helper_offset()), G1_obj_size);
          // make sure it's an instance (LH > 0)
          __ cmp_and_br_short(G1_obj_size, 0, Assembler::lessEqual, Assembler::pn, not_ok);
          __ btst(Klass::_lh_instance_slow_path_bit, G1_obj_size);
          __ br(Assembler::zero, false, Assembler::pn, ok);
          __ delayed()->nop();
          __ bind(not_ok);
          __ stop("assert(can be fast path allocated)");
          __ should_not_reach_here();
          __ bind(ok);
          }
#endif // ASSERT
          // if we got here then the TLAB allocation failed, so try
          // refilling the TLAB or allocating directly from eden.
          Label retry_tlab, try_eden;
          __ tlab_refill(retry_tlab, try_eden, slow_path); // preserves G5_klass

          __ bind(retry_tlab);

          // get the instance size
          __ ld(G5_klass, in_bytes(Klass::layout_helper_offset()), G1_obj_size);

          __ tlab_allocate(O0_obj, G1_obj_size, 0, G3_t1, slow_path);

          __ initialize_object(O0_obj, G5_klass, G1_obj_size, 0, G3_t1, G4_t2);
          __ verify_oop(O0_obj);
          __ mov(O0, I0);
          __ ret();
          __ delayed()->restore();

          __ bind(try_eden);
          // get the instance size
          __ ld(G5_klass, in_bytes(Klass::layout_helper_offset()), G1_obj_size);
          __ eden_allocate(O0_obj, G1_obj_size, 0, G3_t1, G4_t2, slow_path);
          __ incr_allocated_bytes(G1_obj_size, G3_t1, G4_t2);

          __ initialize_object(O0_obj, G5_klass, G1_obj_size, 0, G3_t1, G4_t2);
          __ verify_oop(O0_obj);
          __ mov(O0, I0);
          __ ret();
          __ delayed()->restore();

          __ bind(slow_path);

          // pop this frame so generate_stub_call can push it's own
          __ restore();
        }

        oop_maps = generate_stub_call(sasm, I0, CAST_FROM_FN_PTR(address, new_instance), G5_klass);
        // I0->O0: new instance
      }

      break;

    case counter_overflow_id:
        // G4 contains bci, G5 contains method
      oop_maps = generate_stub_call(sasm, noreg, CAST_FROM_FN_PTR(address, counter_overflow), G4, G5);
      break;

    case new_type_array_id:
    case new_object_array_id:
      {
        Register G5_klass = G5; // Incoming
        Register G4_length = G4; // Incoming
        Register O0_obj   = O0; // Outgoing

        Address klass_lh(G5_klass, Klass::layout_helper_offset());
        assert(Klass::_lh_header_size_shift % BitsPerByte == 0, "bytewise");
        assert(Klass::_lh_header_size_mask == 0xFF, "bytewise");
        // Use this offset to pick out an individual byte of the layout_helper:
        const int klass_lh_header_size_offset = ((BytesPerInt - 1)  // 3 - 2 selects byte {0,1,0,0}
                                                 - Klass::_lh_header_size_shift / BitsPerByte);

        if (id == new_type_array_id) {
          __ set_info("new_type_array", dont_gc_arguments);
        } else {
          __ set_info("new_object_array", dont_gc_arguments);
        }

#ifdef ASSERT
        // assert object type is really an array of the proper kind
        {
          Label ok;
          Register G3_t1 = G3;
          __ ld(klass_lh, G3_t1);
          __ sra(G3_t1, Klass::_lh_array_tag_shift, G3_t1);
          int tag = ((id == new_type_array_id)
                     ? Klass::_lh_array_tag_type_value
                     : Klass::_lh_array_tag_obj_value);
          __ cmp_and_brx_short(G3_t1, tag, Assembler::equal, Assembler::pt, ok);
          __ stop("assert(is an array klass)");
          __ should_not_reach_here();
          __ bind(ok);
        }
#endif // ASSERT

        if (UseTLAB && FastTLABRefill) {
          Label slow_path;
          Register G1_arr_size = G1;
          Register G3_t1 = G3;
          Register O1_t2 = O1;
          assert_different_registers(G5_klass, G4_length, G1_arr_size, G3_t1, O1_t2);

          // check that array length is small enough for fast path
          __ set(C1_MacroAssembler::max_array_allocation_length, G3_t1);
          __ cmp_and_br_short(G4_length, G3_t1, Assembler::greaterUnsigned, Assembler::pn, slow_path);

          // if we got here then the TLAB allocation failed, so try
          // refilling the TLAB or allocating directly from eden.
          Label retry_tlab, try_eden;
          __ tlab_refill(retry_tlab, try_eden, slow_path); // preserves G4_length and G5_klass

          __ bind(retry_tlab);

          // get the allocation size: (length << (layout_helper & 0x1F)) + header_size
          __ ld(klass_lh, G3_t1);
          __ sll(G4_length, G3_t1, G1_arr_size);
          __ srl(G3_t1, Klass::_lh_header_size_shift, G3_t1);
          __ and3(G3_t1, Klass::_lh_header_size_mask, G3_t1);
          __ add(G1_arr_size, G3_t1, G1_arr_size);
          __ add(G1_arr_size, MinObjAlignmentInBytesMask, G1_arr_size);  // align up
          __ and3(G1_arr_size, ~MinObjAlignmentInBytesMask, G1_arr_size);

          __ tlab_allocate(O0_obj, G1_arr_size, 0, G3_t1, slow_path);  // preserves G1_arr_size

          __ initialize_header(O0_obj, G5_klass, G4_length, G3_t1, O1_t2);
          __ ldub(klass_lh, G3_t1, klass_lh_header_size_offset);
          __ sub(G1_arr_size, G3_t1, O1_t2);  // body length
          __ add(O0_obj, G3_t1, G3_t1);       // body start
          __ initialize_body(G3_t1, O1_t2);
          __ verify_oop(O0_obj);
          __ retl();
          __ delayed()->nop();

          __ bind(try_eden);
          // get the allocation size: (length << (layout_helper & 0x1F)) + header_size
          __ ld(klass_lh, G3_t1);
          __ sll(G4_length, G3_t1, G1_arr_size);
          __ srl(G3_t1, Klass::_lh_header_size_shift, G3_t1);
          __ and3(G3_t1, Klass::_lh_header_size_mask, G3_t1);
          __ add(G1_arr_size, G3_t1, G1_arr_size);
          __ add(G1_arr_size, MinObjAlignmentInBytesMask, G1_arr_size);
          __ and3(G1_arr_size, ~MinObjAlignmentInBytesMask, G1_arr_size);

          __ eden_allocate(O0_obj, G1_arr_size, 0, G3_t1, O1_t2, slow_path);  // preserves G1_arr_size
          __ incr_allocated_bytes(G1_arr_size, G3_t1, O1_t2);

          __ initialize_header(O0_obj, G5_klass, G4_length, G3_t1, O1_t2);
          __ ldub(klass_lh, G3_t1, klass_lh_header_size_offset);
          __ sub(G1_arr_size, G3_t1, O1_t2);  // body length
          __ add(O0_obj, G3_t1, G3_t1);       // body start
          __ initialize_body(G3_t1, O1_t2);
          __ verify_oop(O0_obj);
          __ retl();
          __ delayed()->nop();

          __ bind(slow_path);
        }

        if (id == new_type_array_id) {
          oop_maps = generate_stub_call(sasm, I0, CAST_FROM_FN_PTR(address, new_type_array), G5_klass, G4_length);
        } else {
          oop_maps = generate_stub_call(sasm, I0, CAST_FROM_FN_PTR(address, new_object_array), G5_klass, G4_length);
        }
        // I0 -> O0: new array
      }
      break;

    case new_multi_array_id:
      { // O0: klass
        // O1: rank
        // O2: address of 1st dimension
        __ set_info("new_multi_array", dont_gc_arguments);
        oop_maps = generate_stub_call(sasm, I0, CAST_FROM_FN_PTR(address, new_multi_array), I0, I1, I2);
        // I0 -> O0: new multi array
      }
      break;

    case register_finalizer_id:
      {
        __ set_info("register_finalizer", dont_gc_arguments);

        // load the klass and check the has finalizer flag
        Label register_finalizer;
        Register t = O1;
        __ load_klass(O0, t);
        __ ld(t, in_bytes(Klass::access_flags_offset()), t);
        __ set(JVM_ACC_HAS_FINALIZER, G3);
        __ andcc(G3, t, G0);
        __ br(Assembler::notZero, false, Assembler::pt, register_finalizer);
        __ delayed()->nop();

        // do a leaf return
        __ retl();
        __ delayed()->nop();

        __ bind(register_finalizer);
        OopMap* oop_map = save_live_registers(sasm);
        int call_offset = __ call_RT(noreg, noreg,
                                     CAST_FROM_FN_PTR(address, SharedRuntime::register_finalizer), I0);
        oop_maps = new OopMapSet();
        oop_maps->add_gc_map(call_offset, oop_map);

        // Now restore all the live registers
        restore_live_registers(sasm);

        __ ret();
        __ delayed()->restore();
      }
      break;

    case throw_range_check_failed_id:
      { __ set_info("range_check_failed", dont_gc_arguments); // arguments will be discarded
        // G4: index
        oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_range_check_exception), true);
      }
      break;

    case throw_index_exception_id:
      { __ set_info("index_range_check_failed", dont_gc_arguments); // arguments will be discarded
        // G4: index
        oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_index_exception), true);
      }
      break;

    case throw_div0_exception_id:
      { __ set_info("throw_div0_exception", dont_gc_arguments);
        oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_div0_exception), false);
      }
      break;

    case throw_null_pointer_exception_id:
      { __ set_info("throw_null_pointer_exception", dont_gc_arguments);
        oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_null_pointer_exception), false);
      }
      break;

    case handle_exception_id:
      { __ set_info("handle_exception", dont_gc_arguments);
        oop_maps = generate_handle_exception(id, sasm);
      }
      break;

    case handle_exception_from_callee_id:
      { __ set_info("handle_exception_from_callee", dont_gc_arguments);
        oop_maps = generate_handle_exception(id, sasm);
      }
      break;

    case unwind_exception_id:
      {
        // O0: exception
        // I7: address of call to this method

        __ set_info("unwind_exception", dont_gc_arguments);
        __ mov(Oexception, Oexception->after_save());
        __ add(I7, frame::pc_return_offset, Oissuing_pc->after_save());

        __ call_VM_leaf(L7_thread_cache, CAST_FROM_FN_PTR(address, SharedRuntime::exception_handler_for_return_address),
                        G2_thread, Oissuing_pc->after_save());
        __ verify_not_null_oop(Oexception->after_save());

        // Restore SP from L7 if the exception PC is a method handle call site.
        __ mov(O0, G5);  // Save the target address.
        __ lduw(Address(G2_thread, JavaThread::is_method_handle_return_offset()), L0);
        __ tst(L0);  // Condition codes are preserved over the restore.
        __ restore();

        __ jmp(G5, 0);
        __ delayed()->movcc(Assembler::notZero, false, Assembler::icc, L7_mh_SP_save, SP);  // Restore SP if required.
      }
      break;

    case throw_array_store_exception_id:
      {
        __ set_info("throw_array_store_exception", dont_gc_arguments);
        oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_array_store_exception), true);
      }
      break;

    case throw_class_cast_exception_id:
      {
        // G4: object
        __ set_info("throw_class_cast_exception", dont_gc_arguments);
        oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_class_cast_exception), true);
      }
      break;

    case throw_incompatible_class_change_error_id:
      {
        __ set_info("throw_incompatible_class_cast_exception", dont_gc_arguments);
        oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_incompatible_class_change_error), false);
      }
      break;

    case slow_subtype_check_id:
      { // Support for uint StubRoutine::partial_subtype_check( Klass sub, Klass super );
        // Arguments :
        //
        //      ret  : G3
        //      sub  : G3, argument, destroyed
        //      super: G1, argument, not changed
        //      raddr: O7, blown by call
        Label miss;

        __ save_frame(0);               // Blow no registers!

        __ check_klass_subtype_slow_path(G3, G1, L0, L1, L2, L4, NULL, &miss);

        __ mov(1, G3);
        __ ret();                       // Result in G5 is 'true'
        __ delayed()->restore();        // free copy or add can go here

        __ bind(miss);
        __ mov(0, G3);
        __ ret();                       // Result in G5 is 'false'
        __ delayed()->restore();        // free copy or add can go here
      }

    case monitorenter_nofpu_id:
    case monitorenter_id:
      { // G4: object
        // G5: lock address
        __ set_info("monitorenter", dont_gc_arguments);

        int save_fpu_registers = (id == monitorenter_id);
        // make a frame and preserve the caller's caller-save registers
        OopMap* oop_map = save_live_registers(sasm, save_fpu_registers);

        int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, monitorenter), G4, G5);

        oop_maps = new OopMapSet();
        oop_maps->add_gc_map(call_offset, oop_map);
        restore_live_registers(sasm, save_fpu_registers);

        __ ret();
        __ delayed()->restore();
      }
      break;

    case monitorexit_nofpu_id:
    case monitorexit_id:
      { // G4: lock address
        // note: really a leaf routine but must setup last java sp
        //       => use call_RT for now (speed can be improved by
        //       doing last java sp setup manually)
        __ set_info("monitorexit", dont_gc_arguments);

        int save_fpu_registers = (id == monitorexit_id);
        // make a frame and preserve the caller's caller-save registers
        OopMap* oop_map = save_live_registers(sasm, save_fpu_registers);

        int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, monitorexit), G4);

        oop_maps = new OopMapSet();
        oop_maps->add_gc_map(call_offset, oop_map);
        restore_live_registers(sasm, save_fpu_registers);

        __ ret();
        __ delayed()->restore();
      }
      break;

    case deoptimize_id:
      {
        __ set_info("deoptimize", dont_gc_arguments);
        OopMap* oop_map = save_live_registers(sasm);
        int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, deoptimize));
        oop_maps = new OopMapSet();
        oop_maps->add_gc_map(call_offset, oop_map);
        restore_live_registers(sasm);
        DeoptimizationBlob* deopt_blob = SharedRuntime::deopt_blob();
        assert(deopt_blob != NULL, "deoptimization blob must have been created");
        AddressLiteral dest(deopt_blob->unpack_with_reexecution());
        __ jump_to(dest, O0);
        __ delayed()->restore();
      }
      break;

    case access_field_patching_id:
      { __ set_info("access_field_patching", dont_gc_arguments);
        oop_maps = generate_patching(sasm, CAST_FROM_FN_PTR(address, access_field_patching));
      }
      break;

    case load_klass_patching_id:
      { __ set_info("load_klass_patching", dont_gc_arguments);
        oop_maps = generate_patching(sasm, CAST_FROM_FN_PTR(address, move_klass_patching));
      }
      break;

    case load_mirror_patching_id:
      { __ set_info("load_mirror_patching", dont_gc_arguments);
        oop_maps = generate_patching(sasm, CAST_FROM_FN_PTR(address, move_mirror_patching));
      }
      break;

    case dtrace_object_alloc_id:
      { // O0: object
        __ set_info("dtrace_object_alloc", dont_gc_arguments);
        // we can't gc here so skip the oopmap but make sure that all
        // the live registers get saved.
        save_live_registers(sasm);

        __ save_thread(L7_thread_cache);
        __ call(CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_object_alloc),
                relocInfo::runtime_call_type);
        __ delayed()->mov(I0, O0);
        __ restore_thread(L7_thread_cache);

        restore_live_registers(sasm);
        __ ret();
        __ delayed()->restore();
      }
      break;

#if INCLUDE_ALL_GCS
    case g1_pre_barrier_slow_id:
      { // G4: previous value of memory
        BarrierSet* bs = Universe::heap()->barrier_set();
        if (bs->kind() != BarrierSet::G1SATBCTLogging) {
          __ save_frame(0);
          __ set((int)id, O1);
          __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, unimplemented_entry), I0);
          __ should_not_reach_here();
          break;
        }

        __ set_info("g1_pre_barrier_slow_id", dont_gc_arguments);

        Register pre_val = G4;
        Register tmp  = G1_scratch;
        Register tmp2 = G3_scratch;

        Label refill, restart;
        bool with_frame = false; // I don't know if we can do with-frame.
        int satb_q_index_byte_offset =
          in_bytes(JavaThread::satb_mark_queue_offset() +
                   PtrQueue::byte_offset_of_index());
        int satb_q_buf_byte_offset =
          in_bytes(JavaThread::satb_mark_queue_offset() +
                   PtrQueue::byte_offset_of_buf());

        __ bind(restart);
        // Load the index into the SATB buffer. PtrQueue::_index is a
        // size_t so ld_ptr is appropriate
        __ ld_ptr(G2_thread, satb_q_index_byte_offset, tmp);

        // index == 0?
        __ cmp_and_brx_short(tmp, G0, Assembler::equal, Assembler::pn, refill);

        __ ld_ptr(G2_thread, satb_q_buf_byte_offset, tmp2);
        __ sub(tmp, oopSize, tmp);

        __ st_ptr(pre_val, tmp2, tmp);  // [_buf + index] := <address_of_card>
        // Use return-from-leaf
        __ retl();
        __ delayed()->st_ptr(tmp, G2_thread, satb_q_index_byte_offset);

        __ bind(refill);
        __ save_frame(0);

        __ mov(pre_val, L0);
        __ mov(tmp,     L1);
        __ mov(tmp2,    L2);

        __ call_VM_leaf(L7_thread_cache,
                        CAST_FROM_FN_PTR(address,
                                         SATBMarkQueueSet::handle_zero_index_for_thread),
                                         G2_thread);

        __ mov(L0, pre_val);
        __ mov(L1, tmp);
        __ mov(L2, tmp2);

        __ br(Assembler::always, /*annul*/false, Assembler::pt, restart);
        __ delayed()->restore();
      }
      break;

    case g1_post_barrier_slow_id:
      {
        BarrierSet* bs = Universe::heap()->barrier_set();
        if (bs->kind() != BarrierSet::G1SATBCTLogging) {
          __ save_frame(0);
          __ set((int)id, O1);
          __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, unimplemented_entry), I0);
          __ should_not_reach_here();
          break;
        }

        __ set_info("g1_post_barrier_slow_id", dont_gc_arguments);

        Register addr = G4;
        Register cardtable = G5;
        Register tmp  = G1_scratch;
        Register tmp2 = G3_scratch;
        jbyte* byte_map_base = ((CardTableModRefBS*)bs)->byte_map_base;

        Label not_already_dirty, restart, refill;

#ifdef _LP64
        __ srlx(addr, CardTableModRefBS::card_shift, addr);
#else
        __ srl(addr, CardTableModRefBS::card_shift, addr);
#endif

        AddressLiteral rs(byte_map_base);
        __ set(rs, cardtable);         // cardtable := <card table base>
        __ ldub(addr, cardtable, tmp); // tmp := [addr + cardtable]

        assert(CardTableModRefBS::dirty_card_val() == 0, "otherwise check this code");
        __ cmp_and_br_short(tmp, G0, Assembler::notEqual, Assembler::pt, not_already_dirty);

        // We didn't take the branch, so we're already dirty: return.
        // Use return-from-leaf
        __ retl();
        __ delayed()->nop();

        // Not dirty.
        __ bind(not_already_dirty);

        // Get cardtable + tmp into a reg by itself
        __ add(addr, cardtable, tmp2);

        // First, dirty it.
        __ stb(G0, tmp2, 0);  // [cardPtr] := 0  (i.e., dirty).

        Register tmp3 = cardtable;
        Register tmp4 = tmp;

        // these registers are now dead
        addr = cardtable = tmp = noreg;

        int dirty_card_q_index_byte_offset =
          in_bytes(JavaThread::dirty_card_queue_offset() +
                   PtrQueue::byte_offset_of_index());
        int dirty_card_q_buf_byte_offset =
          in_bytes(JavaThread::dirty_card_queue_offset() +
                   PtrQueue::byte_offset_of_buf());

        __ bind(restart);

        // Get the index into the update buffer. PtrQueue::_index is
        // a size_t so ld_ptr is appropriate here.
        __ ld_ptr(G2_thread, dirty_card_q_index_byte_offset, tmp3);

        // index == 0?
        __ cmp_and_brx_short(tmp3, G0, Assembler::equal,  Assembler::pn, refill);

        __ ld_ptr(G2_thread, dirty_card_q_buf_byte_offset, tmp4);
        __ sub(tmp3, oopSize, tmp3);

        __ st_ptr(tmp2, tmp4, tmp3);  // [_buf + index] := <address_of_card>
        // Use return-from-leaf
        __ retl();
        __ delayed()->st_ptr(tmp3, G2_thread, dirty_card_q_index_byte_offset);

        __ bind(refill);
        __ save_frame(0);

        __ mov(tmp2, L0);
        __ mov(tmp3, L1);
        __ mov(tmp4, L2);

        __ call_VM_leaf(L7_thread_cache,
                        CAST_FROM_FN_PTR(address,
                                         DirtyCardQueueSet::handle_zero_index_for_thread),
                                         G2_thread);

        __ mov(L0, tmp2);
        __ mov(L1, tmp3);
        __ mov(L2, tmp4);

        __ br(Assembler::always, /*annul*/false, Assembler::pt, restart);
        __ delayed()->restore();
      }
      break;
#endif // INCLUDE_ALL_GCS

    case predicate_failed_trap_id:
      {
        __ set_info("predicate_failed_trap", dont_gc_arguments);
        OopMap* oop_map = save_live_registers(sasm);

        int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, predicate_failed_trap));

        oop_maps = new OopMapSet();
        oop_maps->add_gc_map(call_offset, oop_map);

        DeoptimizationBlob* deopt_blob = SharedRuntime::deopt_blob();
        assert(deopt_blob != NULL, "deoptimization blob must have been created");
        restore_live_registers(sasm);

        AddressLiteral dest(deopt_blob->unpack_with_reexecution());
        __ jump_to(dest, O0);
        __ delayed()->restore();
      }
      break;

    default:
      { __ set_info("unimplemented entry", dont_gc_arguments);
        __ save_frame(0);
        __ set((int)id, O1);
        __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, unimplemented_entry), O1);
        __ should_not_reach_here();
      }
      break;
  }
  return oop_maps;
}
Exemple #5
0
static void
Display( void )
{
    float ambient[] = {0.1, 0.1, 0.1, 1.0};
    float diffuse[] = {1.0, 1.0, 1.0, 1.0};
    float position[] = {0.0, 1.0, 0.0, 0.0};
    float mat_shininess[] = {90.0};
    float mat_specular[] = {0.8, 0.8, 0.8, 1.0};
    float mat_diffuse[] = {0.46, 0.66, 0.795, 1.0};
    float mat_ambient[] = {0.0, 0.1, 0.2, 1.0};
    float lmodel_ambient[] = {0.4, 0.4, 0.4, 1.0};
    float lmodel_localviewer[] = {0.0};

    int i;

#if 0
    /* stupid WireGL */
    glViewport (0, 0, 450*3, 170*3);
#endif

    glFrontFace(GL_CCW);


    glDepthFunc(GL_LEQUAL);

    glEnable(GL_DEPTH_TEST);

    glLightfv(GL_LIGHT0, GL_AMBIENT, ambient);

    glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse);

    glLightfv(GL_LIGHT0, GL_POSITION, position);

    glLightModelfv(GL_LIGHT_MODEL_AMBIENT, lmodel_ambient);

    glLightModelfv(GL_LIGHT_MODEL_LOCAL_VIEWER, lmodel_localviewer);

    glEnable(GL_LIGHTING);

    glEnable(GL_LIGHT0);

    glMaterialfv(GL_FRONT_AND_BACK, GL_SHININESS, mat_shininess);

    glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, mat_specular);

    glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mat_diffuse);

    glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, mat_ambient);

    glClearColor(0.0, 0.5, 0.9, 0.0);

    glMatrixMode(GL_PROJECTION);

    glLoadIdentity();

    gluPerspective(40.0, 2.0, 10000.0, 400000.0);

    glMatrixMode(GL_MODELVIEW);

    glLoadIdentity();

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    for (i = 0; i < NumSharks; i++) {
        glPushMatrix();
        FishTransform(&sharks[i]);
        DrawShark(&sharks[i]);
        glPopMatrix();
    }

    glPushMatrix();
    FishTransform(&dolph);
    DrawDolphin(&dolph);
    glPopMatrix();

    glPushMatrix();
    FishTransform(&momWhale);
    DrawWhale(&momWhale);
    glPopMatrix();

    glPushMatrix();
    FishTransform(&babyWhale);
    glScalef(0.45, 0.45, 0.3);
    DrawWhale(&babyWhale);
    glPopMatrix();

    if ( screenshot )
	save_frame( );
    screenshot = 0;

    glutSwapBuffers( );

    print_performance( );
}
//------------------------------ generate_exception_blob ---------------------------
// creates exception blob at the end
// Using exception blob, this code is jumped from a compiled method.
// (see emit_exception_handler in sparc.ad file)
//
// Given an exception pc at a call we call into the runtime for the
// handler in this method. This handler might merely restore state
// (i.e. callee save registers) unwind the frame and jump to the
// exception handler for the nmethod if there is no Java level handler
// for the nmethod.
//
// This code is entered with a jmp.
//
// Arguments:
//   O0: exception oop
//   O1: exception pc
//
// Results:
//   O0: exception oop
//   O1: exception pc in caller or ???
//   destination: exception handler of caller
//
// Note: the exception pc MUST be at a call (precise debug information)
//
void OptoRuntime::generate_exception_blob() {
  // allocate space for code
  ResourceMark rm;
  int pad = VerifyThread ? 256 : 0;// Extra slop space for more verify code

  // setup code generation tools
  // Measured 8/7/03 at 256 in 32bit debug build (no VerifyThread)
  // Measured 8/7/03 at 528 in 32bit debug build (VerifyThread)
  CodeBuffer buffer("exception_blob", 600+pad, 512);
  MacroAssembler* masm     = new MacroAssembler(&buffer);

  int framesize_in_bytes = __ total_frame_size_in_bytes(0);
  int framesize_in_words = framesize_in_bytes / wordSize;
  int framesize_in_slots = framesize_in_bytes / sizeof(jint);

  Label L;

  int start = __ offset();

  __ verify_thread();
  __ st_ptr(Oexception,  G2_thread, JavaThread::exception_oop_offset());
  __ st_ptr(Oissuing_pc, G2_thread, JavaThread::exception_pc_offset());

  // This call does all the hard work. It checks if an exception catch
  // exists in the method.
  // If so, it returns the handler address.
  // If the nmethod has been deoptimized and it had a handler the handler
  // address is the deopt blob unpack_with_exception entry.
  //
  // If no handler exists it prepares for stack-unwinding, restoring the callee-save
  // registers of the frame being removed.
  //
  __ save_frame(0);

  __ mov(G2_thread, O0);
  __ set_last_Java_frame(SP, noreg);
  __ save_thread(L7_thread_cache);

  // This call can block at exit and nmethod can be deoptimized at that
  // point. If the nmethod had a catch point we would jump to the
  // now deoptimized catch point and fall thru the vanilla deopt
  // path and lose the exception
  // Sure would be simpler if this call didn't block!
  __ call(CAST_FROM_FN_PTR(address, OptoRuntime::handle_exception_C), relocInfo::runtime_call_type);
  __ delayed()->mov(L7_thread_cache, O0);

  // Set an oopmap for the call site.  This oopmap will only be used if we
  // are unwinding the stack.  Hence, all locations will be dead.
  // Callee-saved registers will be the same as the frame above (i.e.,
  // handle_exception_stub), since they were restored when we got the
  // exception.

  OopMapSet *oop_maps = new OopMapSet();
  oop_maps->add_gc_map( __ offset()-start, new OopMap(framesize_in_slots, 0));

  __ bind(L);
  __ restore_thread(L7_thread_cache);
  __ reset_last_Java_frame();

  __ mov(O0, G3_scratch);             // Move handler address to temp
  __ restore();

  // Restore SP from L7 if the exception PC is a MethodHandle call site.
  __ lduw(Address(G2_thread, JavaThread::is_method_handle_return_offset()), O7);
  __ tst(O7);
  __ movcc(Assembler::notZero, false, Assembler::icc, L7_mh_SP_save, SP);

  // G3_scratch contains handler address
  // Since this may be the deopt blob we must set O7 to look like we returned
  // from the original pc that threw the exception

  __ ld_ptr(G2_thread, JavaThread::exception_pc_offset(), O7);
  __ sub(O7, frame::pc_return_offset, O7);


  assert(Assembler::is_simm13(in_bytes(JavaThread::exception_oop_offset())), "exception offset overflows simm13, following ld instruction cannot be in delay slot");
  __ ld_ptr(G2_thread, JavaThread::exception_oop_offset(), Oexception); // O0
#ifdef ASSERT
  __ st_ptr(G0, G2_thread, JavaThread::exception_handler_pc_offset());
  __ st_ptr(G0, G2_thread, JavaThread::exception_pc_offset());
#endif
  __ JMP(G3_scratch, 0);
  // Clear the exception oop so GC no longer processes it as a root.
  __ delayed()->st_ptr(G0, G2_thread, JavaThread::exception_oop_offset());

  // -------------
  // make sure all code is generated
  masm->flush();

  _exception_blob = ExceptionBlob::create(&buffer, oop_maps, framesize_in_words);
}
Exemple #7
0
int ffmpeg_tutorial01(const char *file)
{
    int ret;
    int video_stream;
    int width, height;
    AVFormatContext* ic = NULL;
    AVCodecContext* pCodeCtx = NULL;
    AVCodec*        pCodec = NULL;
    AVFrame*        pFrame = NULL;
    AVFrame*        pFrameRGB = NULL;
    uint8_t*        buffer = NULL;
    struct SwsContext* pSwsCtx = NULL;
    AVPacket        packet;
    if (!file) {
        STAR_LOG("no input specified!");
        return -1;
    }

    av_register_all();
//    avformat_network_init();
//    ic = avformat_alloc_context();
    ret = avformat_open_input(&ic, file, NULL, NULL);
    if (ret != 0) {
        STAR_LOG("FFmpeg open input file failed!");
        goto fail;
    }

    ret = avformat_find_stream_info(ic, NULL);
    if (ret < 0) {
        STAR_LOG("FFmpeg find stream info failed!");
        goto fail;
    }
    av_dump_format(ic, 0, file, 0);

    //find the video streaming
    int i;
    for (i = 0; i < ic->nb_streams; i++) {
        if (ic->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
            STAR_LOG("video stream %d found, codec id:%#x",
                    i, ic->streams[i]->codec->codec_id);
            video_stream = i;
            break;
        }
    }

    if (video_stream == ic->nb_streams) {
        STAR_LOG("None of video stream, stop!");
        goto fail;
    }

    // Find decoder
    pCodeCtx = ic->streams[video_stream]->codec;
    pCodec = avcodec_find_decoder(pCodeCtx->codec_id);
    if (!pCodec) {
        STAR_LOG("Find specified codec failed, id:%d", pCodeCtx->codec_id);
        goto fail;
    }
    //Open codec
    ret = avcodec_open2(pCodeCtx, pCodec, NULL);
    if (ret < 0) {
        STAR_LOG("Open codec failed");
        goto fail;
    }
    //Alloc video frame
    pFrame = avcodec_alloc_frame();
    pFrameRGB = avcodec_alloc_frame();
    if (!pFrame || !pFrameRGB) {
        STAR_LOG("Allocate frame failed");
        goto fail;
    }
    width = pCodeCtx->width;
    height = pCodeCtx->height;
    //Determine number of byte and allocate frame buffer
    int32_t num_bytes = avpicture_get_size(PIX_FMT_RGB24,
            width, height);
    buffer = (uint8_t*)av_malloc(num_bytes * sizeof(uint8_t));
    if (!buffer) {
        STAR_LOG("FFmpeg allocate memory failed");
        goto fail;
    }
    ret = avpicture_fill((AVPicture*)pFrameRGB, buffer, PIX_FMT_RGB24,
            width, height);
    if (ret < 0) {
        STAR_LOG("fill picture failed");
        goto fail;
    }
    pSwsCtx = sws_getCachedContext(pSwsCtx, pCodeCtx->width, pCodeCtx->height, pCodeCtx->pix_fmt,
            width, height, PIX_FMT_RGB24,
            SWS_BICUBIC, NULL, NULL, NULL);
    if (!pSwsCtx) {
        STAR_LOG("init swscale failed");
        goto fail;
    }
    i = 0;
    int frame_finished;
    while (av_read_frame(ic, &packet) >= 0) {
        if (packet.stream_index == video_stream) {
            i++;
//            STAR_LOG("read an video frame:%d", i);
            ret = avcodec_decode_video2(pCodeCtx, pFrame,
                    &frame_finished, &packet);
            if (ret < 0) {
                STAR_LOG("Decode frame error");
                av_free_packet(&packet);
                break;
              }
            if (frame_finished) {
                sws_scale(pSwsCtx, (const uint8_t* const*)pFrame->data,
                        pFrame->linesize, 0, height,
                        pFrameRGB->data, pFrameRGB->linesize);
                if (i % 10 == 0) {
                    save_frame(pFrameRGB, width, height, i);
                }
            }
         }
        av_free_packet(&packet);
    }
    ret = 0;
    if (ret) {
fail:
        ret = -1;
    }
    if (ic)
        avformat_close_input(&ic);
    if (pFrame)
        av_free(pFrame);
    if (pFrameRGB)
        av_free(pFrameRGB);
    if (buffer)
        av_free(buffer);
    if (pSwsCtx)
        sws_freeContext(pSwsCtx);
    return ret;
}
// LP64 passes floating point arguments in F1, F3, F5, etc. instead of
// O0, O1, O2 etc..
// Doubles are passed in D0, D2, D4
// We store the signature of the first 16 arguments in the first argument
// slot because it will be overwritten prior to calling the native
// function, with the pointer to the JNIEnv.
// If LP64 there can be up to 16 floating point arguments in registers
// or 6 integer registers.
address AbstractInterpreterGenerator::generate_slow_signature_handler() {

  enum {
    non_float  = 0,
    float_sig  = 1,
    double_sig = 2,
    sig_mask   = 3
  };

  address entry = __ pc();
  Argument argv(0, true);

  // We are in the jni transition frame. Save the last_java_frame corresponding to the
  // outer interpreter frame
  //
  __ set_last_Java_frame(FP, noreg);
  // make sure the interpreter frame we've pushed has a valid return pc
  __ mov(O7, I7);
  __ mov(Lmethod, G3_scratch);
  __ mov(Llocals, G4_scratch);
  __ save_frame(0);
  __ mov(G2_thread, L7_thread_cache);
  __ add(argv.address_in_frame(), O3);
  __ mov(G2_thread, O0);
  __ mov(G3_scratch, O1);
  __ call(CAST_FROM_FN_PTR(address, InterpreterRuntime::slow_signature_handler), relocInfo::runtime_call_type);
  __ delayed()->mov(G4_scratch, O2);
  __ mov(L7_thread_cache, G2_thread);
  __ reset_last_Java_frame();


  // load the register arguments (the C code packed them as varargs)
  Address Sig = argv.address_in_frame();        // Argument 0 holds the signature
  __ ld_ptr( Sig, G3_scratch );                   // Get register argument signature word into G3_scratch
  __ mov( G3_scratch, G4_scratch);
  __ srl( G4_scratch, 2, G4_scratch);             // Skip Arg 0
  Label done;
  for (Argument ldarg = argv.successor(); ldarg.is_float_register(); ldarg = ldarg.successor()) {
    Label NonFloatArg;
    Label LoadFloatArg;
    Label LoadDoubleArg;
    Label NextArg;
    Address a = ldarg.address_in_frame();
    __ andcc(G4_scratch, sig_mask, G3_scratch);
    __ br(Assembler::zero, false, Assembler::pt, NonFloatArg);
    __ delayed()->nop();

    __ cmp(G3_scratch, float_sig );
    __ br(Assembler::equal, false, Assembler::pt, LoadFloatArg);
    __ delayed()->nop();

    __ cmp(G3_scratch, double_sig );
    __ br(Assembler::equal, false, Assembler::pt, LoadDoubleArg);
    __ delayed()->nop();

    __ bind(NonFloatArg);
    // There are only 6 integer register arguments!
    if ( ldarg.is_register() )
      __ ld_ptr(ldarg.address_in_frame(), ldarg.as_register());
    else {
    // Optimization, see if there are any more args and get out prior to checking
    // all 16 float registers.  My guess is that this is rare.
    // If is_register is false, then we are done the first six integer args.
      __ br_null_short(G4_scratch, Assembler::pt, done);
    }
    __ ba(NextArg);
    __ delayed()->srl( G4_scratch, 2, G4_scratch );

    __ bind(LoadFloatArg);
    __ ldf( FloatRegisterImpl::S, a, ldarg.as_float_register(), 4);
    __ ba(NextArg);
    __ delayed()->srl( G4_scratch, 2, G4_scratch );

    __ bind(LoadDoubleArg);
    __ ldf( FloatRegisterImpl::D, a, ldarg.as_double_register() );
    __ ba(NextArg);
    __ delayed()->srl( G4_scratch, 2, G4_scratch );

    __ bind(NextArg);

  }

  __ bind(done);
  __ ret();
  __ delayed()->
     restore(O0, 0, Lscratch);  // caller's Lscratch gets the result handler
  return entry;
}
Exemple #9
0
void start_editor() {
	int ret;

// Colors initialization
	for (ret=1; edit_dialog[ret].proc; ret++) {
		edit_dialog[ret].fg = colors[black];
		edit_dialog[ret].bg = ((edit_dialog[ret].proc==d_edit_proc) ? colors[white] : colors[gray]);
	}
	edit_dialog[0].bg = colors[darkgray];
	edit_dialog[5].dp = datafile[DATA_SCREEN].dat;

	for (ret=1; mapedit_dialog[ret].proc; ret++) {
		mapedit_dialog[ret].fg = colors[black];
		mapedit_dialog[ret].bg = ((mapedit_dialog[ret].proc==d_list_proc) ? colors[white] : colors[gray]);
	}
	mapedit_dialog[0].bg = colors[darkgray];

// Default game values
	game.row_x = game.row_y = 25;
	game.tiles = game.row_x * game.row_y;
	game.turns = 10;
	game.points_tile = 1;
	game.points_city = 10;
	game.fog = game.hide = 0xff;
	game.cross = 0;
	game.turn = -1;
	game.turns = 10;
	game.player = 0;
	game.pane_x = game.pane_y = 0;
	game.powerup_i=(unsigned short)-1;
	game.powerup_v=0;
	game.random=0xffff;
	strcpy(game.name, "Scenario");
	strcpy(game.description, "Scenario description");

// Default players values
	for (ret=0; ret<8; ret++) {
		sprintf(players[ret].name, "Player %d", ret);
		players[ret].reser_t = players[ret].resou_t = players[ret].reser_c = players[ret].resou_c = players[ret].resources = players[ret].reserves = players[ret].points = 0;
		players[ret].reser_max = 50;
		players[ret].effect = 100;
	}
	player=0;

	for (ret=0; ret<2500; ret++) {
		matrix[ret].info = 0x08;
		matrix[ret].fog = 0xff;
	}

	while (1) {
		sprintf(x_sectors, "%d", game.row_x);
		sprintf(y_sectors, "%d", game.row_y);
		sprintf(turns, "%d", game.turns);
		sprintf(sector_points, "%d", game.points_tile);
		sprintf(base_points, "%d", game.points_city);

		sprintf(strbuf, "Name #%d", player+1);
		strcpy(play.name, players[player].name);
		sprintf(play.reser_t, "%d", players[player].reser_t);
		sprintf(play.resou_t, "%d", players[player].resou_t);
		sprintf(play.reser_c, "%d", players[player].reser_c);
		sprintf(play.resou_c, "%d", players[player].resou_c);
		sprintf(play.resources, "%d", players[player].resources);
		sprintf(play.reserves, "%d", players[player].reserves);
		sprintf(play.points, "%d", players[player].points);
		sprintf(play.reser_max, "%d", players[player].reser_max);
		sprintf(play.effect, "%d", players[player].effect);

		edit_dialog[B_FOG].flags = (game.fog ? 0 : D_SELECTED);
		edit_dialog[B_HIDE].flags = (game.hide ? 0 : D_SELECTED);
		edit_dialog[B_CROSS].flags = (game.cross ? D_SELECTED : 0);

		show_mouse(screen);

		ret = do_dialog(edit_dialog, -1);
		switch (ret) {
		case B_SAVE:
			save_frame();
			save_scenario(SL_SCENARIO);
		break;
		case B_LOAD:
			load_scenario(SL_SCENARIO);
			break;
		case B_EXIT:
			if (alert("Save the current scenario?", NULL, NULL, "&Yes", "&No", 'y', 'n')==1) save_scenario(SL_SCENARIO);
			return;
		case B_MAP:
			save_frame();
			for(ret=0; ret<game.tiles; ret++) matrix[ret].fog = 0xFF;
			start_mapedit();
			for(ret=0; ret<game.tiles; ret++) matrix[ret].fog = 0;
			break;
		case B_2NEXT:
			save_frame();
			players[(player+1)&0x07] = players[player];
			break;
		case B_2REST:
			save_frame();
			for (ret=player+1; ret<8; ret++) players[ret]=players[player];
			break;
		case B_2ALL:
			save_frame();
			for (ret=0; ret<8; ret++) players[ret]=players[player];
			break;
		case B_NEXT:
			save_frame();
			player++;
			if (player>7) player=0;
			break;
		case B_PREV:
			save_frame();
			player--;
			if (player<0) player=7;
			break;
		}
	}
}
void SaveOptimizerState::do_update(unsigned int k) {
  save_frame(fh_, k);
}
int main(int argc, char* argv[]) {
	printf("Read few frame and write to image\n");
	if(argc < 2) {
		printf("Missing input video file\n");
		return -1;
	}
	int ret = -1, i = 0, v_stream_idx = -1;
	char* vf_path = argv[1];
	AVFormatContext* fmt_ctx = NULL;
	AVCodecContext* codec_ctx = NULL;
	AVCodec* codec = NULL;
	AVPacket pkt;
	AVFrame* frm = NULL;

	av_register_all();
	ret = avformat_open_input(&fmt_ctx, vf_path, NULL, NULL);
	if(ret < 0){
		printf("Open video file %s failed \n", vf_path);
		goto end;
	}

	// i dont know but without this function, sws_getContext does not work
	if(avformat_find_stream_info(fmt_ctx, NULL)<0)
    	return -1;

    av_dump_format(fmt_ctx, 0, argv[1], 0);

	for(i = 0; i < fmt_ctx->nb_streams; i++) {
		if(fmt_ctx->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
			v_stream_idx = i;
			break;
		}
	}
	if(v_stream_idx == -1) {
		printf("Cannot find video stream\n");
		goto end;
	}else{
		printf("Video stream %d with resolution %dx%d\n", v_stream_idx,
			fmt_ctx->streams[i]->codecpar->width,
			fmt_ctx->streams[i]->codecpar->height);
	}

	codec_ctx = avcodec_alloc_context3(NULL);
	avcodec_parameters_to_context(codec_ctx, fmt_ctx->streams[v_stream_idx]->codecpar);

	codec = avcodec_find_decoder(codec_ctx->codec_id);
	if(codec == NULL){
		printf("Unsupported codec for video file\n");
		goto end;
	}
	ret = avcodec_open2(codec_ctx, codec, NULL);
	if(ret < 0){
		printf("Can not open codec\n");
		goto end;
	}

	frm = av_frame_alloc();

  	struct SwsContext      *sws_ctx = NULL;
  	AVFrame         *pFrameRGB = NULL;
	int             numBytes;
	uint8_t         *buffer = NULL;

  // Allocate an AVFrame structure
  pFrameRGB=av_frame_alloc();
  if(pFrameRGB==NULL)
    return -1;
  
  // Determine required buffer size and allocate buffer
  numBytes=avpicture_get_size(AV_PIX_FMT_RGB24, codec_ctx->width,
			      codec_ctx->height);
  buffer=(uint8_t *)av_malloc(numBytes*sizeof(uint8_t));

  sws_ctx =
    sws_getContext
    (
        codec_ctx->width,
        codec_ctx->height,
        codec_ctx->pix_fmt,
        codec_ctx->width,
        codec_ctx->height,
        AV_PIX_FMT_RGB24,
        SWS_BILINEAR,
        NULL,
        NULL,
        NULL
    );

	if(sws_ctx == NULL) {
		printf("Can not use sws\n");
		goto end;
	}

	avpicture_fill((AVPicture *)pFrameRGB, buffer, AV_PIX_FMT_RGB24,
		 codec_ctx->width, codec_ctx->height);



	i=0;
	int ret1 = -1, ret2 = -1, fi = -1;
	while(av_read_frame(fmt_ctx, &pkt)>=0) {
		if(pkt.stream_index == v_stream_idx) {
			ret1 = avcodec_send_packet(codec_ctx, &pkt);
			ret2 = avcodec_receive_frame(codec_ctx, frm);
			printf("ret1 %d ret2 %d\n", ret1, ret2);
			// avcodec_decode_video2(codec_ctx, frm, &fi, &pkt);
		}
		// if not check ret2, error occur [swscaler @ 0x1cb3c40] bad src image pointers
		// ret2 same as fi
		// if(fi && ++i <= 5) {
		if(ret2>= 0 && ++i <= 5) {
	        sws_scale
		        (
		            sws_ctx,
		            (uint8_t const * const *)frm->data,
		            frm->linesize,
		            0,
		            codec_ctx->height,
		            pFrameRGB->data,
		            pFrameRGB->linesize
		        );

			save_frame(pFrameRGB, codec_ctx->width, codec_ctx->height, i);
			// save_frame(frm, codec_ctx->width, codec_ctx->height, i);
		}
		av_packet_unref(&pkt);
		if(i>=5){
			break;
		}
	}

	av_frame_free(&frm);

	avcodec_close(codec_ctx);
	avcodec_free_context(&codec_ctx);
	end:
	avformat_close_input(&fmt_ctx);
	printf("Shutdown\n");
	return 0;
}